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qt6windows7/tests/auto/widgets/graphicsview/qgraphicsview/tst_qgraphicsview.cpp

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qt 6.5.1 original
2023-10-30 06:33:08 +08:00
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include <QTest>
#include <QSignalSpy>
#include <QTimer>
#include <qgraphicsitem.h>
#include <qgraphicsscene.h>
#include <qgraphicssceneevent.h>
#include <qgraphicsview.h>
#include <qgraphicswidget.h>
#include <qgraphicsproxywidget.h>
#include <math.h>
#include <QtWidgets/QLabel>
#include <QtWidgets/QStyleFactory>
#include <QtWidgets/QCommonStyle>
#include <QtGui/QPainterPath>
#include <QtWidgets/QRubberBand>
#include <QtWidgets/QScrollBar>
#include <QtWidgets/QStyleOption>
#include <QtWidgets/QBoxLayout>
#include <QtWidgets/QStyle>
#include <QtWidgets/QPushButton>
#include <QtWidgets/QScroller>
#if QT_CONFIG(opengl)
#include <QtOpenGLWidgets/QOpenGLWidget>
#endif
#include <private/qgraphicsscene_p.h>
#include <private/qgraphicsview_p.h>
#include "../../../shared/platforminputcontext.h"
#include <private/qinputmethod_p.h>
#include <private/qguiapplication_p.h>
#include <qpa/qplatformintegration.h>
#include "tst_qgraphicsview.h"
#include <QtTest/private/qtesthelpers_p.h>
#include <QtWidgets/private/qapplication_p.h>
using namespace QTestPrivate;
Q_DECLARE_METATYPE(ExpectedValueDescription)
Q_DECLARE_METATYPE(QList<int>)
Q_DECLARE_METATYPE(QList<QRectF>)
Q_DECLARE_METATYPE(QTransform)
Q_DECLARE_METATYPE(QPainterPath)
Q_DECLARE_METATYPE(Qt::ScrollBarPolicy)
Q_DECLARE_METATYPE(ScrollBarCount)
#ifdef Q_OS_MAC
//On mac we get full update. So check that the expected region is contained inside the actual
#define COMPARE_REGIONS(ACTUAL, EXPECTED) QVERIFY((EXPECTED).subtracted(ACTUAL).isEmpty())
#else
#define COMPARE_REGIONS QCOMPARE
#endif
static void sendMousePress(QWidget *widget, const QPoint &point, Qt::MouseButton button = Qt::LeftButton)
{
QMouseEvent event(QEvent::MouseButtonPress, point, widget->mapToGlobal(point), button, {}, {});
QApplication::sendEvent(widget, &event);
}
static void sendMouseMove(QWidget *widget, const QPoint &point, Qt::MouseButton button = Qt::NoButton, Qt::MouseButtons buttons = {})
{
QTest::mouseMove(widget, point);
QMouseEvent event(QEvent::MouseMove, point, widget->mapToGlobal(point), button, buttons, {});
QApplication::sendEvent(widget, &event);
QApplication::processEvents();
}
static void sendMouseRelease(QWidget *widget, const QPoint &point, Qt::MouseButton button = Qt::LeftButton)
{
QMouseEvent event(QEvent::MouseButtonRelease, point, widget->mapToGlobal(point), button, {}, {});
QApplication::sendEvent(widget, &event);
}
class EventSpy : public QObject
{
Q_OBJECT
public:
EventSpy(QObject *watched, QEvent::Type type)
: _count(0), spied(type)
{
watched->installEventFilter(this);
}
int count() const { return _count; }
void reset() { _count = 0; }
protected:
bool eventFilter(QObject *watched, QEvent *event) override
{
Q_UNUSED(watched);
if (event->type() == spied)
++_count;
return false;
}
int _count;
QEvent::Type spied;
};
#if defined QT_BUILD_INTERNAL
class FriendlyGraphicsScene : public QGraphicsScene
{
friend class tst_QGraphicsView;
Q_DECLARE_PRIVATE(QGraphicsScene);
};
#endif
class tst_QGraphicsView : public QObject
{
Q_OBJECT
public:
tst_QGraphicsView()
: platformName(QGuiApplication::platformName().toLower())
{ }
private slots:
void cleanup();
void construction();
void renderHints();
void alignment();
void interactive();
void scene();
void setScene();
void deleteScene();
void sceneRect();
void sceneRect_growing();
void setSceneRect();
void viewport();
#if QT_CONFIG(opengl)
void openGLViewport();
#endif
void dragMode_scrollHand();
void dragMode_rubberBand();
void rubberBandSelectionMode();
void rubberBandExtendSelection();
void rotated_rubberBand();
void backgroundBrush();
void foregroundBrush();
void matrix();
void matrix_convenience();
void matrix_combine();
void centerOnPoint();
void centerOnItem();
void ensureVisibleRect();
void fitInView();
void itemsAtPoint();
#if defined QT_BUILD_INTERNAL
void itemsAtPosition_data();
void itemsAtPosition();
#endif
void itemsInRect();
void itemsInRect_cosmeticAdjust_data();
void itemsInRect_cosmeticAdjust();
void itemsInPoly();
void itemsInPath();
void itemAt();
void itemAt2();
void mapToScene();
void mapToScenePoint();
void mapToSceneRect_data();
void mapToSceneRect();
void mapToScenePoly();
void mapToScenePath();
void mapFromScenePoint();
void mapFromSceneRect();
void mapFromScenePoly();
void mapFromScenePath();
void sendEvent();
#if QT_CONFIG(wheelevent)
void wheelEvent();
#endif
#ifndef QT_NO_CURSOR
void cursor();
void cursor2();
#endif
void transformationAnchor();
void resizeAnchor();
void viewportUpdateMode();
void viewportUpdateMode2();
#if QT_CONFIG(draganddrop)
void acceptDrops();
#endif
void optimizationFlags();
void optimizationFlags_dontSavePainterState();
void optimizationFlags_dontSavePainterState2_data();
void optimizationFlags_dontSavePainterState2();
void levelOfDetail_data();
void levelOfDetail();
void scrollBarRanges_data();
void scrollBarRanges();
void acceptMousePressEvent();
void acceptMouseDoubleClickEvent();
void forwardMousePress();
void forwardMouseDoubleClick();
void replayMouseMove();
void itemsUnderMouse();
void embeddedViews();
void embeddedViewsWithFocus();
void scrollAfterResize_data();
void scrollAfterResize();
void moveItemWhileScrolling_data();
void moveItemWhileScrolling();
void centerOnDirtyItem();
void mouseTracking();
void mouseTracking2();
void mouseTracking3();
void render();
void exposeRegion();
void update_data();
void update();
void update2_data();
void update2();
void update_ancestorClipsChildrenToShape();
void update_ancestorClipsChildrenToShape2();
void inputMethodSensitivity();
void inputContextReset();
void indirectPainting();
void compositionModeInDrawBackground();
// task specific tests below me
void task172231_untransformableItems();
void task180429_mouseReleaseDragMode();
void task187791_setSceneCausesUpdate();
void task186827_deleteReplayedItem();
void task207546_focusCrash();
void task210599_unsetDragWhileDragging();
void task239729_noViewUpdate_data();
void task239729_noViewUpdate();
void task239047_fitInViewSmallViewport();
void task245469_itemsAtPointWithClip();
void task253415_reconnectUpdateSceneOnSceneChanged();
void task255529_transformationAnchorMouseAndViewportMargins();
void task259503_scrollingArtifacts();
void QTBUG_4151_clipAndIgnore_data();
void QTBUG_4151_clipAndIgnore();
void QTBUG_5859_exposedRect();
void hoverLeave();
void QTBUG_16063_microFocusRect();
void QTBUG_70255_scrollTo();
#ifndef QT_NO_CURSOR
void QTBUG_7438_cursor();
#endif
void resizeContentsOnItemDrag_data();
void resizeContentsOnItemDrag();
public slots:
void dummySlot() {}
private:
QString platformName;
};
void tst_QGraphicsView::cleanup()
{
// ensure not even skipped tests with custom input context leave it dangling
QInputMethodPrivate *inputMethodPrivate = QInputMethodPrivate::get(qApp->inputMethod());
inputMethodPrivate->testContext = 0;
}
void tst_QGraphicsView::construction()
{
QGraphicsView view;
QCOMPARE(view.renderHints(), QPainter::TextAntialiasing);
QCOMPARE(view.dragMode(), QGraphicsView::NoDrag);
QVERIFY(view.isInteractive());
QVERIFY(!view.scene());
QCOMPARE(view.sceneRect(), QRectF());
QVERIFY(view.viewport());
QCOMPARE(view.viewport()->metaObject()->className(), "QWidget");
QCOMPARE(view.transform(), QTransform());
QVERIFY(view.items().isEmpty());
QVERIFY(view.items(QPoint()).isEmpty());
QVERIFY(view.items(QRect()).isEmpty());
QVERIFY(view.items(QPolygon()).isEmpty());
QVERIFY(view.items(QPainterPath()).isEmpty());
QVERIFY(!view.itemAt(QPoint()));
QCOMPARE(view.mapToScene(QPoint()), QPointF());
QCOMPARE(view.mapToScene(QRect()), QPolygonF());
QCOMPARE(view.mapToScene(QPolygon()), QPolygonF());
QCOMPARE(view.mapFromScene(QPointF()), QPoint());
QPolygon poly;
poly << QPoint() << QPoint() << QPoint() << QPoint();
QCOMPARE(view.mapFromScene(QRectF()), poly);
QCOMPARE(view.mapFromScene(QPolygonF()), QPolygon());
QCOMPARE(view.transformationAnchor(), QGraphicsView::AnchorViewCenter);
QCOMPARE(view.resizeAnchor(), QGraphicsView::NoAnchor);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
}
class TestItem : public QGraphicsItem
{
public:
QRectF boundingRect() const override
{ return QRectF(-10, -10, 20, 20); }
void paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *) override
{ hints = painter->renderHints(); painter->drawRect(boundingRect()); }
bool sceneEvent(QEvent *event) override
{
events << event->type();
return QGraphicsItem::sceneEvent(event);
}
QList<QEvent::Type> events;
QPainter::RenderHints hints;
};
void tst_QGraphicsView::renderHints()
{
QGraphicsView view;
QCOMPARE(view.renderHints(), QPainter::TextAntialiasing);
view.setRenderHint(QPainter::TextAntialiasing, false);
QCOMPARE(view.renderHints(), 0);
view.setRenderHint(QPainter::Antialiasing, false);
QCOMPARE(view.renderHints(), 0);
view.setRenderHint(QPainter::TextAntialiasing, true);
QCOMPARE(view.renderHints(), QPainter::TextAntialiasing);
view.setRenderHint(QPainter::Antialiasing);
QCOMPARE(view.renderHints(), QPainter::TextAntialiasing | QPainter::Antialiasing);
view.setRenderHints({});
QCOMPARE(view.renderHints(), 0);
TestItem *item = new TestItem;
QGraphicsScene scene;
scene.addItem(item);
view.setScene(&scene);
view.setRenderHints(QPainter::TextAntialiasing | QPainter::Antialiasing);
QCOMPARE(view.renderHints(), QPainter::TextAntialiasing | QPainter::Antialiasing);
QCOMPARE(item->hints, 0);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
view.update();
QTRY_COMPARE(item->hints, view.renderHints());
view.setRenderHints(QPainter::Antialiasing);
QCOMPARE(view.renderHints(), QPainter::Antialiasing);
view.update();
QTRY_COMPARE(item->hints, view.renderHints());
}
void tst_QGraphicsView::alignment()
{
QGraphicsScene scene;
scene.addRect(QRectF(-10, -10, 20, 20));
QGraphicsView view(&scene);
setFrameless(&view);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
for (int i = 0; i < 3; ++i) {
for (int j = 0; j < 3; ++j) {
Qt::Alignment alignment;
switch (i) {
case 0:
alignment |= Qt::AlignLeft;
break;
case 1:
alignment |= Qt::AlignHCenter;
break;
case 2:
default:
alignment |= Qt::AlignRight;
break;
}
switch (j) {
case 0:
alignment |= Qt::AlignTop;
break;
case 1:
alignment |= Qt::AlignVCenter;
break;
case 2:
default:
alignment |= Qt::AlignBottom;
break;
}
view.setAlignment(alignment);
QCOMPARE(view.alignment(), alignment);
for (int k = 0; k < 3; ++k) {
view.resize(100 + k * 25, 100 + k * 25);
QApplication::processEvents();
}
}
}
}
void tst_QGraphicsView::interactive()
{
if (!QGuiApplicationPrivate::platformIntegration()->hasCapability(QPlatformIntegration::WindowActivation))
QSKIP("Window activation is not supported");
TestItem *item = new TestItem;
item->setFlags(QGraphicsItem::ItemIsMovable);
QCOMPARE(item->events.size(), 0);
QGraphicsScene scene(-200, -200, 400, 400);
scene.addItem(item);
QGraphicsView view(&scene);
view.setFixedSize(300, 300);
QCOMPARE(item->events.size(), 0);
view.show();
view.activateWindow();
QVERIFY(QTest::qWaitForWindowExposed(&view));
QVERIFY(QTest::qWaitForWindowActive(&view));
QTRY_COMPARE(item->events.size(), 1); // activate
QPoint itemPoint = view.mapFromScene(item->scenePos());
QVERIFY(view.itemAt(itemPoint));
for (int i = 0; i < 100; ++i) {
sendMousePress(view.viewport(), itemPoint);
QCOMPARE(item->events.size(), i * 5 + 3);
QCOMPARE(item->events.at(item->events.size() - 2), QEvent::GrabMouse);
QCOMPARE(item->events.at(item->events.size() - 1), QEvent::GraphicsSceneMousePress);
sendMouseRelease(view.viewport(), itemPoint);
QCOMPARE(item->events.size(), i * 5 + 5);
QCOMPARE(item->events.at(item->events.size() - 2), QEvent::GraphicsSceneMouseRelease);
QCOMPARE(item->events.at(item->events.size() - 1), QEvent::UngrabMouse);
#ifndef QT_NO_CONTEXTMENU
QContextMenuEvent contextEvent(QContextMenuEvent::Mouse, itemPoint, view.mapToGlobal(itemPoint));
QApplication::sendEvent(view.viewport(), &contextEvent);
QCOMPARE(item->events.size(), i * 5 + 6);
QCOMPARE(item->events.last(), QEvent::GraphicsSceneContextMenu);
#endif // QT_NO_CONTEXTMENU
}
view.setInteractive(false);
for (int i = 0; i < 100; ++i) {
sendMousePress(view.viewport(), itemPoint);
QCOMPARE(item->events.size(), 501);
QCOMPARE(item->events.last(), QEvent::GraphicsSceneContextMenu);
sendMouseRelease(view.viewport(), itemPoint);
QCOMPARE(item->events.size(), 501);
QCOMPARE(item->events.last(), QEvent::GraphicsSceneContextMenu);
#ifndef QT_NO_CONTEXTMENU
QContextMenuEvent contextEvent(QContextMenuEvent::Mouse, itemPoint, view.mapToGlobal(itemPoint));
QApplication::sendEvent(view.viewport(), &contextEvent);
QCOMPARE(item->events.size(), 501);
QCOMPARE(item->events.last(), QEvent::GraphicsSceneContextMenu);
#endif // QT_NO_CONTEXTMENU
}
}
void tst_QGraphicsView::scene()
{
QGraphicsView view;
QVERIFY(!view.scene());
view.setScene(0);
QVERIFY(!view.scene());
{
QGraphicsScene scene;
view.setScene(&scene);
QCOMPARE(view.scene(), &scene);
}
QCOMPARE(view.scene(), nullptr);
}
void tst_QGraphicsView::setScene()
{
QGraphicsScene scene(-1000, -1000, 2000, 2000);
QGraphicsView view(&scene);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
QCOMPARE(view.sceneRect(), scene.sceneRect());
QVERIFY(view.horizontalScrollBar()->isVisible());
QVERIFY(view.verticalScrollBar()->isVisible());
QVERIFY(!view.horizontalScrollBar()->isHidden());
QVERIFY(!view.verticalScrollBar()->isHidden());
view.setScene(0);
QTRY_VERIFY(!view.horizontalScrollBar()->isVisible());
QTRY_VERIFY(!view.verticalScrollBar()->isVisible());
QVERIFY(!view.horizontalScrollBar()->isHidden());
QVERIFY(!view.verticalScrollBar()->isHidden());
QCOMPARE(view.sceneRect(), QRectF());
}
void tst_QGraphicsView::deleteScene()
{
QGraphicsScene *scene = new QGraphicsScene;
QGraphicsView view1(scene);
view1.show();
QGraphicsView view2(scene);
view2.show();
QGraphicsView view3(scene);
view3.show();
delete scene;
QCOMPARE(view1.scene(), nullptr);
QCOMPARE(view2.scene(), nullptr);
QCOMPARE(view3.scene(), nullptr);
}
void tst_QGraphicsView::sceneRect()
{
QGraphicsView view;
QCOMPARE(view.sceneRect(), QRectF());
view.setSceneRect(QRectF(-100, -100, 200, 200));
QCOMPARE(view.sceneRect(), QRectF(-100, -100, 200, 200));
view.setSceneRect(-100, -100, 200, 200);
QCOMPARE(view.sceneRect(), QRectF(-100, -100, 200, 200));
view.setSceneRect(QRectF());
QCOMPARE(view.sceneRect(), QRectF());
QGraphicsScene scene;
QGraphicsRectItem *item = scene.addRect(QRectF(-100, -100, 100, 100));
item->setPen(QPen(Qt::black, 0));
view.setScene(&scene);
QCOMPARE(view.sceneRect(), QRectF(-100, -100, 100, 100));
item->moveBy(-100, -100);
QCOMPARE(view.sceneRect(), QRectF(-200, -200, 200, 200));
item->moveBy(100, 100);
QCOMPARE(view.sceneRect(), QRectF(-200, -200, 200, 200));
view.setScene(0);
view.setSceneRect(QRectF());
QCOMPARE(view.sceneRect(), QRectF());
}
void tst_QGraphicsView::sceneRect_growing()
{
QWidget toplevel;
QGraphicsScene scene;
for (int i = 0; i < 100; ++i)
scene.addText(QLatin1String("(0, ") + QString::number((i - 50) * 20))->setPos(0, (i - 50) * 20);
QGraphicsView view(&scene, &toplevel);
view.setFixedSize(200, 200);
toplevel.show();
QVERIFY(QTest::qWaitForWindowActive(&toplevel));
int size = 200;
scene.setSceneRect(-size, -size, size * 2, size * 2);
QCOMPARE(view.sceneRect(), scene.sceneRect());
QPointF topLeft = view.mapToScene(0, 0);
for (int i = 0; i < 5; ++i) {
size *= 2;
scene.setSceneRect(-size, -size, size * 2, size * 2);
QApplication::processEvents();
QCOMPARE(view.sceneRect(), scene.sceneRect());
QCOMPARE(view.mapToScene(0, 0), topLeft);
view.setSceneRect(-size, -size, size * 2, size * 2);
QCOMPARE(view.mapToScene(0, 0), topLeft);
view.setSceneRect(QRectF());
}
}
void tst_QGraphicsView::setSceneRect()
{
QRectF rect1(-100, -100, 200, 200);
QRectF rect2(-300, -300, 150, 150);
QGraphicsScene scene;
QGraphicsView view(&scene);
scene.setSceneRect(rect1);
QCOMPARE(scene.sceneRect(), rect1);
QCOMPARE(view.sceneRect(), rect1);
scene.setSceneRect(rect2);
QCOMPARE(scene.sceneRect(), rect2);
QCOMPARE(view.sceneRect(), rect2);
view.setSceneRect(rect1);
QCOMPARE(scene.sceneRect(), rect2);
QCOMPARE(view.sceneRect(), rect1);
view.setSceneRect(rect2);
QCOMPARE(scene.sceneRect(), rect2);
QCOMPARE(view.sceneRect(), rect2);
scene.setSceneRect(rect1);
QCOMPARE(scene.sceneRect(), rect1);
QCOMPARE(view.sceneRect(), rect2);
// extreme transformations will max out the scrollbars' ranges.
view.setSceneRect(-2000000, -2000000, 4000000, 4000000);
view.scale(9000, 9000);
QCOMPARE(view.horizontalScrollBar()->minimum(), INT_MIN);
QCOMPARE(view.horizontalScrollBar()->maximum(), INT_MAX);
QCOMPARE(view.verticalScrollBar()->minimum(), INT_MIN);
QCOMPARE(view.verticalScrollBar()->maximum(), INT_MAX);
}
void tst_QGraphicsView::viewport()
{
QGraphicsScene scene;
scene.addText("GraphicsView");
QGraphicsView view(&scene);
QVERIFY(view.viewport() != 0);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
QPointer<QWidget> widget = new QWidget;
view.setViewport(widget);
QCOMPARE(view.viewport(), (QWidget *)widget);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
view.setViewport(0);
QVERIFY(widget.isNull());
QVERIFY(view.viewport() != 0);
QVERIFY(view.viewport() != widget);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
}
#if QT_CONFIG(opengl)
void tst_QGraphicsView::openGLViewport()
{
if (!QGuiApplicationPrivate::platformIntegration()->hasCapability(QPlatformIntegration::OpenGL))
QSKIP("QOpenGL is not supported on this platform.");
QGraphicsScene scene;
scene.setBackgroundBrush(Qt::white);
scene.addText("GraphicsView");
scene.addEllipse(QRectF(400, 50, 50, 50));
scene.addEllipse(QRectF(-100, -400, 50, 50));
scene.addEllipse(QRectF(50, -100, 50, 50));
scene.addEllipse(QRectF(-100, 50, 50, 50));
QGraphicsView view(&scene);
view.setSceneRect(-400, -400, 800, 800);
view.resize(400, 400);
QOpenGLWidget *glw = new QOpenGLWidget;
QSignalSpy spy1(glw, SIGNAL(resized()));
QSignalSpy spy2(glw, SIGNAL(frameSwapped()));
view.setViewport(glw);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
QTRY_VERIFY(spy1.size() > 0);
QTRY_VERIFY(spy2.size() >= spy1.size());
spy1.clear();
spy2.clear();
// Now test for resize (QTBUG-52419). This is special when the viewport is
// a QOpenGLWidget since the underlying FBO must also be maintained.
view.resize(300, 300);
QTRY_VERIFY(spy1.size() > 0);
QTRY_VERIFY(spy2.size() >= spy1.size());
// There is no sane way to check if the framebuffer contents got updated
// (grabFramebuffer is no good for the viewport case as that does not go
// through paintGL). So skip the actual verification.
}
#endif
void tst_QGraphicsView::dragMode_scrollHand()
{
for (int j = 0; j < 2; ++j) {
QGraphicsView view;
setFrameless(&view);
QCOMPARE(view.dragMode(), QGraphicsView::NoDrag);
view.setSceneRect(-1000, -1000, 2000, 2000);
view.setFixedSize(100, 100);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
QApplication::processEvents();
view.setInteractive(j ? false : true);
QGraphicsScene scene;
scene.addRect(QRectF(-100, -100, 5, 5));
scene.addRect(QRectF(95, -100, 5, 5));
scene.addRect(QRectF(95, 95, 5, 5));
QGraphicsItem *item = scene.addRect(QRectF(-100, 95, 5, 5));
item->setFlag(QGraphicsItem::ItemIsSelectable);
item->setSelected(true);
QVERIFY(item->isSelected());
QVERIFY(!view.scene());
view.setDragMode(QGraphicsView::ScrollHandDrag);
for (int i = 0; i < 2; ++i) {
// ScrollHandDrag
#ifndef QT_NO_CURSOR
Qt::CursorShape cursorShape = view.viewport()->cursor().shape();
#endif
int horizontalScrollBarValue = view.horizontalScrollBar()->value();
int verticalScrollBarValue = view.verticalScrollBar()->value();
{
// Press
auto pos = view.viewport()->rect().center();
QMouseEvent event(QEvent::MouseButtonPress, pos,
view.viewport()->mapToGlobal(pos),
Qt::LeftButton, Qt::LeftButton, {});
event.setAccepted(true);
QApplication::sendEvent(view.viewport(), &event);
QVERIFY(event.isAccepted());
}
QApplication::processEvents();
QTRY_VERIFY(item->isSelected());
for (int k = 0; k < 4; ++k) {
#ifndef QT_NO_CURSOR
QCOMPARE(view.viewport()->cursor().shape(), Qt::ClosedHandCursor);
#endif
{
// Move
auto pos = view.viewport()->rect().center() + QPoint(10, 0);
QMouseEvent event(QEvent::MouseMove, pos,
view.viewport()->mapToGlobal(pos),
Qt::LeftButton, Qt::LeftButton, {});
event.setAccepted(true);
QApplication::sendEvent(view.viewport(), &event);
QVERIFY(event.isAccepted());
}
QVERIFY(item->isSelected());
QCOMPARE(view.horizontalScrollBar()->value(), horizontalScrollBarValue - 10);
QCOMPARE(view.verticalScrollBar()->value(), verticalScrollBarValue);
{
// Move
auto pos = view.viewport()->rect().center() + QPoint(10, 10);
QMouseEvent event(QEvent::MouseMove, pos,
view.viewport()->mapToGlobal(pos),
Qt::LeftButton, Qt::LeftButton, {});
event.setAccepted(true);
QApplication::sendEvent(view.viewport(), &event);
QVERIFY(event.isAccepted());
}
QVERIFY(item->isSelected());
QCOMPARE(view.horizontalScrollBar()->value(), horizontalScrollBarValue - 10);
QCOMPARE(view.verticalScrollBar()->value(), verticalScrollBarValue - 10);
}
{
// Release
auto pos = view.viewport()->rect().center() + QPoint(10, 10);
QMouseEvent event(QEvent::MouseButtonRelease, pos,
view.viewport()->mapToGlobal(pos),
Qt::LeftButton, Qt::LeftButton, {});
event.setAccepted(true);
QApplication::sendEvent(view.viewport(), &event);
QVERIFY(event.isAccepted());
}
QApplication::processEvents();
QTRY_VERIFY(item->isSelected());
QCOMPARE(view.horizontalScrollBar()->value(), horizontalScrollBarValue - 10);
QCOMPARE(view.verticalScrollBar()->value(), verticalScrollBarValue - 10);
#ifndef QT_NO_CURSOR
QCOMPARE(view.viewport()->cursor().shape(), cursorShape);
#endif
// Check that items are not unselected because of a scroll hand drag.
QVERIFY(item->isSelected());
// Check that a click will still unselect the item.
{
// Press
auto pos = view.viewport()->rect().center() + QPoint(10, 10);
QMouseEvent event(QEvent::MouseButtonPress, pos,
view.viewport()->mapToGlobal(pos),
Qt::LeftButton, Qt::LeftButton, {});
QApplication::sendEvent(view.viewport(), &event);
}
{
// Release
auto pos = view.viewport()->rect().center() + QPoint(10, 10);
QMouseEvent event(QEvent::MouseButtonRelease, pos,
view.viewport()->mapToGlobal(pos),
Qt::LeftButton, Qt::LeftButton, {});
QApplication::sendEvent(view.viewport(), &event);
}
if (view.isInteractive()) {
if (view.scene()) {
QVERIFY(!item->isSelected());
item->setSelected(true);
} else {
QVERIFY(item->isSelected());
}
} else {
QVERIFY(item->isSelected());
}
view.setScene(&scene);
}
}
}
void tst_QGraphicsView::dragMode_rubberBand()
{
QGraphicsView view;
QCOMPARE(view.dragMode(), QGraphicsView::NoDrag);
view.setSceneRect(-1000, -1000, 2000, 2000);
view.show();
QGraphicsScene scene;
scene.addRect(QRectF(-100, -100, 25, 25))->setFlag(QGraphicsItem::ItemIsSelectable);
scene.addRect(QRectF(75, -100, 25, 25))->setFlag(QGraphicsItem::ItemIsSelectable);
scene.addRect(QRectF(75, 75, 25, 25))->setFlag(QGraphicsItem::ItemIsSelectable);
scene.addRect(QRectF(-100, 75, 25, 25))->setFlag(QGraphicsItem::ItemIsSelectable);
view.setDragMode(QGraphicsView::RubberBandDrag);
QVERIFY(QTest::qWaitForWindowExposed(&view));
QApplication::processEvents();
for (int i = 0; i < 2; ++i) {
// RubberBandDrag
#ifndef QT_NO_CURSOR
Qt::CursorShape cursorShape = view.viewport()->cursor().shape();
#endif
int horizontalScrollBarValue = view.horizontalScrollBar()->value();
int verticalScrollBarValue = view.verticalScrollBar()->value();
{
// Press
auto pos = view.viewport()->rect().center();
QMouseEvent event(QEvent::MouseButtonPress, pos,
view.viewport()->mapToGlobal(pos),
Qt::LeftButton, Qt::LeftButton, {});
event.setAccepted(true);
QApplication::sendEvent(view.viewport(), &event);
QVERIFY(event.isAccepted());
}
#ifndef QT_NO_CURSOR
QCOMPARE(view.viewport()->cursor().shape(), cursorShape);
#endif
QApplication::processEvents();
{
// Move
auto pos = view.viewport()->rect().center() + QPoint(100, 0);
QMouseEvent event(QEvent::MouseMove, pos,
view.viewport()->mapToGlobal(pos),
Qt::LeftButton, Qt::LeftButton, {});
event.setAccepted(true);
QApplication::sendEvent(view.viewport(), &event);
QVERIFY(event.isAccepted());
}
QCOMPARE(view.horizontalScrollBar()->value(), horizontalScrollBarValue);
QCOMPARE(view.verticalScrollBar()->value(), verticalScrollBarValue);
// We don't use QRubberBand as of 4.3; the band is drawn internally.
QVERIFY(!view.findChild<QRubberBand *>());
{
// Move
auto pos = view.viewport()->rect().center() + QPoint(100, 100);
QMouseEvent event(QEvent::MouseMove, pos,
view.viewport()->mapToGlobal(pos),
Qt::LeftButton, Qt::LeftButton, {});
event.setAccepted(true);
QApplication::sendEvent(view.viewport(), &event);
QVERIFY(event.isAccepted());
}
QCOMPARE(view.horizontalScrollBar()->value(), horizontalScrollBarValue);
QCOMPARE(view.verticalScrollBar()->value(), verticalScrollBarValue);
{
// Release
auto pos = view.viewport()->rect().center() + QPoint(100, 100);
QMouseEvent event(QEvent::MouseButtonRelease, pos,
view.viewport()->mapToGlobal(pos),
Qt::LeftButton, Qt::LeftButton, {});
event.setAccepted(true);
QApplication::sendEvent(view.viewport(), &event);
QVERIFY(event.isAccepted());
}
QCOMPARE(view.horizontalScrollBar()->value(), horizontalScrollBarValue);
QCOMPARE(view.verticalScrollBar()->value(), verticalScrollBarValue);
#ifndef QT_NO_CURSOR
QCOMPARE(view.viewport()->cursor().shape(), cursorShape);
#endif
if (view.scene())
QCOMPARE(scene.selectedItems().size(), 1);
view.setScene(&scene);
view.centerOn(0, 0);
}
}
void tst_QGraphicsView::rubberBandSelectionMode()
{
QWidget toplevel;
setFrameless(&toplevel);
QGraphicsScene scene;
QGraphicsRectItem *rect = scene.addRect(QRectF(10, 10, 80, 80));
rect->setFlag(QGraphicsItem::ItemIsSelectable);
QGraphicsView view(&scene, &toplevel);
QCOMPARE(view.rubberBandSelectionMode(), Qt::IntersectsItemShape);
view.setDragMode(QGraphicsView::RubberBandDrag);
view.resize(120, 120);
toplevel.show();
// Disable mouse tracking to prevent the window system from sending mouse
// move events to the viewport while we are synthesizing events. If
// QGraphicsView gets a mouse move event with no buttons down, it'll
// terminate the rubber band.
view.viewport()->setMouseTracking(false);
QVERIFY(scene.selectedItems().isEmpty());
sendMousePress(view.viewport(), QPoint(), Qt::LeftButton);
sendMouseMove(view.viewport(), view.viewport()->rect().center(),
Qt::LeftButton, Qt::LeftButton);
QCOMPARE(scene.selectedItems(), {rect});
sendMouseRelease(view.viewport(), QPoint(), Qt::LeftButton);
view.setRubberBandSelectionMode(Qt::ContainsItemShape);
QCOMPARE(view.rubberBandSelectionMode(), Qt::ContainsItemShape);
sendMousePress(view.viewport(), QPoint(), Qt::LeftButton);
QVERIFY(scene.selectedItems().isEmpty());
sendMouseMove(view.viewport(), view.viewport()->rect().center(),
Qt::LeftButton, Qt::LeftButton);
QVERIFY(scene.selectedItems().isEmpty());
sendMouseMove(view.viewport(), view.viewport()->rect().bottomRight(),
Qt::LeftButton, Qt::LeftButton);
QCOMPARE(scene.selectedItems(), {rect});
}
void tst_QGraphicsView::rubberBandExtendSelection()
{
QWidget toplevel;
setFrameless(&toplevel);
QGraphicsScene scene(0, 0, 1000, 1000);
QGraphicsView view(&scene, &toplevel);
view.setDragMode(QGraphicsView::RubberBandDrag);
toplevel.show();
// Disable mouse tracking to prevent the window system from sending mouse
// move events to the viewport while we are synthesizing events. If
// QGraphicsView gets a mouse move event with no buttons down, it'll
// terminate the rubber band.
view.viewport()->setMouseTracking(false);
QGraphicsItem *item1 = scene.addRect(10, 10, 100, 100);
QGraphicsItem *item2 = scene.addRect(10, 120, 100, 100);
QGraphicsItem *item3 = scene.addRect(10, 230, 100, 100);
item1->setFlag(QGraphicsItem::ItemIsSelectable);
item2->setFlag(QGraphicsItem::ItemIsSelectable);
item3->setFlag(QGraphicsItem::ItemIsSelectable);
// select first item
item1->setSelected(true);
QCOMPARE(scene.selectedItems(), {item1});
// first rubberband without modifier key
sendMousePress(view.viewport(), view.mapFromScene(20, 115), Qt::LeftButton);
sendMouseMove(view.viewport(), view.mapFromScene(20, 300), Qt::LeftButton, Qt::LeftButton);
QVERIFY(!item1->isSelected());
QVERIFY(item2->isSelected());
QVERIFY(item3->isSelected());
sendMouseRelease(view.viewport(), QPoint(), Qt::LeftButton);
scene.clearSelection();
// select first item
item1->setSelected(true);
QVERIFY(item1->isSelected());
// now rubberband with modifier key
{
QPoint clickPoint = view.mapFromScene(20, 115);
QMouseEvent event(QEvent::MouseButtonPress, clickPoint, view.viewport()->mapToGlobal(clickPoint),
Qt::LeftButton, {}, Qt::ControlModifier);
QApplication::sendEvent(view.viewport(), &event);
}
sendMouseMove(view.viewport(), view.mapFromScene(20, 300), Qt::LeftButton, Qt::LeftButton);
QVERIFY(item1->isSelected());
QVERIFY(item2->isSelected());
QVERIFY(item3->isSelected());
}
void tst_QGraphicsView::rotated_rubberBand()
{
QWidget toplevel;
setFrameless(&toplevel);
QGraphicsScene scene;
const int dim = 3;
for (int i = 0; i < dim; i++) {
for (int j = 0; j < dim; j ++) {
QGraphicsRectItem *rect = new QGraphicsRectItem(i * 20, j * 20, 10, 10);
rect->setFlag(QGraphicsItem::ItemIsSelectable);
rect->setData(0, (i == j));
scene.addItem(rect);
}
}
QGraphicsView view(&scene, &toplevel);
QCOMPARE(view.rubberBandSelectionMode(), Qt::IntersectsItemShape);
view.setDragMode(QGraphicsView::RubberBandDrag);
view.resize(120, 120);
view.rotate(45);
toplevel.show();
QVERIFY(QTest::qWaitForWindowExposed(&toplevel));
// Disable mouse tracking to prevent the window system from sending mouse
// move events to the viewport while we are synthesizing events. If
// QGraphicsView gets a mouse move event with no buttons down, it'll
// terminate the rubber band.
view.viewport()->setMouseTracking(false);
QVERIFY(scene.selectedItems().isEmpty());
int midWidth = view.viewport()->width() / 2;
sendMousePress(view.viewport(), QPoint(midWidth - 2, 0), Qt::LeftButton);
sendMouseMove(view.viewport(), QPoint(midWidth + 2, view.viewport()->height()),
Qt::LeftButton, Qt::LeftButton);
QCOMPARE(scene.selectedItems().size(), dim);
foreach (const QGraphicsItem *item, scene.items()) {
QCOMPARE(item->isSelected(), item->data(0).toBool());
}
sendMouseRelease(view.viewport(), QPoint(), Qt::LeftButton);
}
void tst_QGraphicsView::backgroundBrush()
{
QGraphicsScene scene;
QGraphicsView view(&scene);
scene.setBackgroundBrush(Qt::blue);
QCOMPARE(scene.backgroundBrush(), QBrush(Qt::blue));
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
scene.setBackgroundBrush(QBrush());
QCOMPARE(scene.backgroundBrush(), QBrush());
QTest::qWait(25);
QRadialGradient gradient(0, 0, 10);
gradient.setSpread(QGradient::RepeatSpread);
scene.setBackgroundBrush(gradient);
QCOMPARE(scene.backgroundBrush(), QBrush(gradient));
QTest::qWait(25);
}
void tst_QGraphicsView::foregroundBrush()
{
QGraphicsScene scene;
QGraphicsView view(&scene);
scene.setForegroundBrush(Qt::blue);
QCOMPARE(scene.foregroundBrush(), QBrush(Qt::blue));
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
scene.setForegroundBrush(QBrush());
QCOMPARE(scene.foregroundBrush(), QBrush());
QTest::qWait(25);
QRadialGradient gradient(0, 0, 10);
gradient.setSpread(QGradient::RepeatSpread);
scene.setForegroundBrush(gradient);
QCOMPARE(scene.foregroundBrush(), QBrush(gradient));
QTest::qWait(25);
for (int i = 0; i < 50; ++i) {
QRadialGradient gradient(view.rect().center() + QPoint(int(sin(i / 2.0) * 10), int(cos(i / 2.0) * 10)), 10);
gradient.setColorAt(0, Qt::transparent);
gradient.setColorAt(0.5, Qt::black);
gradient.setColorAt(1, Qt::transparent);
gradient.setSpread(QGradient::RepeatSpread);
scene.setForegroundBrush(gradient);
QRadialGradient gradient2(view.rect().center() + QPoint(int(sin(i / 1.7) * 10), int(cos(i / 1.7) * 10)), 10);
gradient2.setColorAt(0, Qt::transparent);
gradient2.setColorAt(0.5, Qt::black);
gradient2.setColorAt(1, Qt::transparent);
gradient2.setSpread(QGradient::RepeatSpread);
scene.setBackgroundBrush(gradient2);
QRadialGradient gradient3(view.rect().center() + QPoint(int(sin(i / 1.85) * 10), int(cos(i / 1.85) * 10)), 10);
gradient3.setColorAt(0, Qt::transparent);
gradient3.setColorAt(0.5, Qt::black);
gradient3.setColorAt(1, Qt::transparent);
gradient3.setSpread(QGradient::RepeatSpread);
scene.setBackgroundBrush(gradient3);
QApplication::processEvents();
}
view.setSceneRect(-1000, -1000, 2000, 2000);
for (int i = -500; i < 500; i += 10) {
view.centerOn(i, 0);
QApplication::processEvents();
QApplication::processEvents();
}
for (int i = -500; i < 500; i += 10) {
view.centerOn(0, i);
QApplication::processEvents();
QApplication::processEvents();
}
}
void tst_QGraphicsView::matrix()
{
{
QGraphicsScene scene;
QGraphicsView view(&scene);
view.show();
// Show rendering of background with no scene
for (int i = 0; i < 50; ++i) {
view.rotate(5);
QRadialGradient gradient(view.rect().center() + QPoint(int(sin(i / 2.0) * 10), int(cos(i / 2.0) * 10)), 10);
gradient.setColorAt(0, Qt::transparent);
gradient.setColorAt(0.5, Qt::black);
gradient.setColorAt(1, Qt::transparent);
gradient.setSpread(QGradient::RepeatSpread);
scene.setForegroundBrush(gradient);
QRadialGradient gradient2(view.rect().center() + QPoint(int(sin(i / 1.7) * 10), int(cos(i / 1.7) * 10)), 10);
gradient2.setColorAt(0, Qt::transparent);
gradient2.setColorAt(0.5, Qt::black);
gradient2.setColorAt(1, Qt::transparent);
gradient2.setSpread(QGradient::RepeatSpread);
scene.setBackgroundBrush(gradient2);
QApplication::processEvents();
QApplication::processEvents();
}
}
// Test transformation extremes, see if they cause crashes
{
QGraphicsScene scene;
scene.addText("GraphicsView rotated clockwise");
QGraphicsView view(&scene);
view.show();
for (int i = 0; i < 160; ++i) {
view.rotate(18);
QApplication::processEvents();
QApplication::processEvents();
}
/*
// These cause a crash
for (int i = 0; i < 40; ++i) {
view.shear(1.2, 1.2);
QTest::qWait(20);
}
for (int i = 0; i < 40; ++i) {
view.shear(-1.2, -1.2);
QTest::qWait(20);
}
*/
for (int i = 0; i < 20; ++i) {
view.scale(1.2, 1.2);
QApplication::processEvents();
QApplication::processEvents();
}
for (int i = 0; i < 20; ++i) {
view.scale(0.6, 0.6);
QApplication::processEvents();
QApplication::processEvents();
}
}
}
void tst_QGraphicsView::matrix_convenience()
{
QGraphicsView view;
QCOMPARE(view.transform(), QTransform());
// Check the convenience functions
view.rotate(90);
QCOMPARE(view.transform(), QTransform().rotate(90));
view.scale(2, 2);
QCOMPARE(view.transform(), QTransform().scale(2, 2) * QTransform().rotate(90));
view.shear(1.2, 1.2);
QCOMPARE(view.transform(), QTransform().shear(1.2, 1.2) * QTransform().scale(2, 2) * QTransform().rotate(90));
view.translate(1, 1);
QCOMPARE(view.transform(), QTransform().translate(1, 1) * QTransform().shear(1.2, 1.2) * QTransform().scale(2, 2) * QTransform().rotate(90));
}
void tst_QGraphicsView::matrix_combine()
{
// Check matrix combining
QGraphicsView view;
QCOMPARE(view.transform(), QTransform());
view.setTransform(QTransform().rotate(90), true);
view.setTransform(QTransform().rotate(90), true);
view.setTransform(QTransform().rotate(90), true);
view.setTransform(QTransform().rotate(90), true);
QCOMPARE(view.transform(), QTransform());
view.resetTransform();
QCOMPARE(view.transform(), QTransform());
view.setTransform(QTransform().rotate(90), false);
view.setTransform(QTransform().rotate(90), false);
view.setTransform(QTransform().rotate(90), false);
view.setTransform(QTransform().rotate(90), false);
QCOMPARE(view.transform(), QTransform().rotate(90));
}
void tst_QGraphicsView::centerOnPoint()
{
QWidget toplevel;
setFrameless(&toplevel);
QGraphicsScene scene;
scene.addEllipse(QRectF(-100, -100, 50, 50));
scene.addEllipse(QRectF(50, -100, 50, 50));
scene.addEllipse(QRectF(-100, 50, 50, 50));
scene.addEllipse(QRectF(50, 50, 50, 50));
QGraphicsView view(&scene, &toplevel);
view.setSceneRect(-400, -400, 800, 800);
view.setFixedSize(100, 100);
toplevel.show();
int tolerance = 5;
for (int i = 0; i < 3; ++i) {
for (int y = -100; y < 100; y += 23) {
for (int x = -100; x < 100; x += 23) {
view.centerOn(x, y);
QPoint viewCenter = view.mapToScene(view.viewport()->rect().center()).toPoint();
// Fuzzy compare
if (viewCenter.x() < x - tolerance || viewCenter.x() > x + tolerance
|| viewCenter.y() < y - tolerance || viewCenter.y() > y + tolerance) {
QString error = QString("Compared values are not the same\n\tActual: (%1, %2)\n\tExpected: (%3, %4)")
.arg(viewCenter.x()).arg(viewCenter.y()).arg(x).arg(y);
QFAIL(qPrintable(error));
}
QApplication::processEvents();
}
}
view.rotate(13);
view.scale(1.5, 1.5);
view.shear(1.25, 1.25);
}
}
void tst_QGraphicsView::centerOnItem()
{
QGraphicsScene scene;
QGraphicsItem *items[4];
items[0] = scene.addEllipse(QRectF(-25, -25, 50, 50));
items[1] = scene.addEllipse(QRectF(-25, -25, 50, 50));
items[2] = scene.addEllipse(QRectF(-25, -25, 50, 50));
items[3] = scene.addEllipse(QRectF(-25, -25, 50, 50));
items[0]->setPos(-100, -100);
items[1]->setPos(100, -100);
items[2]->setPos(-100, 100);
items[3]->setPos(100, 100);
QGraphicsView view(&scene);
view.setSceneRect(-1000, -1000, 2000, 2000);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
int tolerance = 7;
for (int x = 0; x < 3; ++x) {
for (int i = 0; i < 4; ++i) {
QApplication::processEvents();
view.centerOn(items[i]);
QPoint viewCenter = view.mapToScene(view.viewport()->rect().center()).toPoint();
qreal x = items[i]->pos().x();
qreal y = items[i]->pos().y();
// Fuzzy compare
if (viewCenter.x() < x - tolerance || viewCenter.x() > x + tolerance
|| viewCenter.y() < y - tolerance || viewCenter.y() > y + tolerance) {
QString error = QString("Compared values are not the same\n\tActual: (%1, %2)\n\tExpected: (%3, %4)")
.arg(viewCenter.x()).arg(viewCenter.y()).arg(x).arg(y);
QFAIL(qPrintable(error));
}
QApplication::processEvents();
}
view.rotate(13);
view.scale(1.5, 1.5);
view.shear(1.25, 1.25);
}
}
void tst_QGraphicsView::ensureVisibleRect()
{
QWidget toplevel;
QGraphicsScene scene;
QGraphicsItem *items[4];
items[0] = scene.addEllipse(QRectF(-25, -25, 50, 50), QPen(Qt::black), QBrush(Qt::green));
items[1] = scene.addEllipse(QRectF(-25, -25, 50, 50), QPen(Qt::black), QBrush(Qt::red));
items[2] = scene.addEllipse(QRectF(-25, -25, 50, 50), QPen(Qt::black), QBrush(Qt::blue));
items[3] = scene.addEllipse(QRectF(-25, -25, 50, 50), QPen(Qt::black), QBrush(Qt::yellow));
scene.addLine(QLineF(0, -100, 0, 100), QPen(Qt::blue, 2));
scene.addLine(QLineF(-100, 0, 100, 0), QPen(Qt::blue, 2));
items[0]->setPos(-100, -100);
items[1]->setPos(100, -100);
items[2]->setPos(-100, 100);
items[3]->setPos(100, 100);
QGraphicsItem *icon = scene.addEllipse(QRectF(-10, -10, 20, 20), QPen(Qt::black), QBrush(Qt::gray));
QGraphicsView view(&scene, &toplevel);
view.setSceneRect(-500, -500, 1000, 1000);
view.setFixedSize(250, 250);
toplevel.show();
QVERIFY(QTest::qWaitForWindowExposed(&toplevel));
for (int y = -100; y < 100; y += 25) {
for (int x = -100; x < 100; x += 13) {
icon->setPos(x, y);
switch (x & 3) {
case 0:
view.centerOn(-500, -500);
break;
case 1:
view.centerOn(500, -500);
break;
case 2:
view.centerOn(-500, 500);
break;
case 3:
default:
view.centerOn(500, 500);
break;
}
QVERIFY(!view.viewport()->rect().contains(view.mapFromScene(x, y)));
for (int margin = 10; margin < 60; margin += 15) {
view.ensureVisible(x, y, 0, 0, margin, margin);
QRect viewRect = view.viewport()->rect();
QPoint viewPoint = view.mapFromScene(x, y);
QVERIFY(viewRect.contains(viewPoint));
QVERIFY(qAbs(viewPoint.x() - viewRect.left()) >= margin -1);
QVERIFY(qAbs(viewPoint.x() - viewRect.right()) >= margin -1);
QVERIFY(qAbs(viewPoint.y() - viewRect.top()) >= margin -1);
QVERIFY(qAbs(viewPoint.y() - viewRect.bottom()) >= margin -1);
QApplication::processEvents();
}
}
view.rotate(5);
view.scale(1.05, 1.05);
view.translate(30, -30);
}
}
void tst_QGraphicsView::fitInView()
{
QGraphicsScene scene;
QGraphicsItem *items[4];
items[0] = scene.addEllipse(QRectF(-25, -25, 100, 20), QPen(Qt::black), QBrush(Qt::green));
items[1] = scene.addEllipse(QRectF(-25, -25, 20, 100), QPen(Qt::black), QBrush(Qt::red));
items[2] = scene.addEllipse(QRectF(-25, -25, 50, 50), QPen(Qt::black), QBrush(Qt::blue));
items[3] = scene.addEllipse(QRectF(-25, -25, 50, 50), QPen(Qt::black), QBrush(Qt::yellow));
scene.addLine(QLineF(0, -100, 0, 100), QPen(Qt::blue, 2));
scene.addLine(QLineF(-100, 0, 100, 0), QPen(Qt::blue, 2));
items[0]->setPos(-100, -100);
items[1]->setPos(100, -100);
items[2]->setPos(-100, 100);
items[3]->setPos(100, 100);
items[0]->setTransform(QTransform().rotate(30), true);
items[1]->setTransform(QTransform().rotate(-30), true);
QGraphicsView view(&scene);
view.setSceneRect(-400, -400, 800, 800);
view.setFixedSize(400, 200);
view.showNormal();
view.fitInView(scene.itemsBoundingRect(), Qt::IgnoreAspectRatio);
qApp->processEvents();
// Sampled coordinates.
QVERIFY(!view.itemAt(45, 41));
QVERIFY(!view.itemAt(297, 44));
QVERIFY(!view.itemAt(359, 143));
QCOMPARE(view.itemAt(79, 22), items[0]);
QCOMPARE(view.itemAt(329, 41), items[1]);
QCOMPARE(view.itemAt(38, 158), items[2]);
QCOMPARE(view.itemAt(332, 160), items[3]);
view.fitInView(items[0], Qt::IgnoreAspectRatio);
qApp->processEvents();
QCOMPARE(view.itemAt(19, 13), items[0]);
QCOMPARE(view.itemAt(91, 47), items[0]);
QCOMPARE(view.itemAt(202, 94), items[0]);
QCOMPARE(view.itemAt(344, 161), items[0]);
QVERIFY(!view.itemAt(236, 54));
QVERIFY(!view.itemAt(144, 11));
QVERIFY(!view.itemAt(29, 69));
QVERIFY(!view.itemAt(251, 167));
view.fitInView(items[0], Qt::KeepAspectRatio);
qApp->processEvents();
QCOMPARE(view.itemAt(325, 170), items[0]);
QCOMPARE(view.itemAt(206, 74), items[0]);
QCOMPARE(view.itemAt(190, 115), items[0]);
QCOMPARE(view.itemAt(55, 14), items[0]);
QVERIFY(!view.itemAt(109, 4));
QVERIFY(!view.itemAt(244, 68));
QVERIFY(!view.itemAt(310, 125));
QVERIFY(!view.itemAt(261, 168));
view.fitInView(items[0], Qt::KeepAspectRatioByExpanding);
qApp->processEvents();
QCOMPARE(view.itemAt(18, 10), items[0]);
QCOMPARE(view.itemAt(95, 4), items[0]);
QCOMPARE(view.itemAt(279, 175), items[0]);
QCOMPARE(view.itemAt(359, 170), items[0]);
QVERIFY(!view.itemAt(370, 166));
QVERIFY(!view.itemAt(136, 7));
QVERIFY(!view.itemAt(31, 44));
QVERIFY(!view.itemAt(203, 153));
}
void tst_QGraphicsView::itemsAtPoint()
{
QGraphicsScene scene;
scene.addRect(QRectF(-10, -10, 20, 20))->setZValue(1);
scene.addRect(QRectF(-10, -10, 20, 20))->setZValue(0);
scene.addRect(QRectF(-10, -10, 20, 20))->setZValue(2);
scene.addRect(QRectF(-10, -10, 20, 20))->setZValue(-1);
scene.addRect(QRectF(-10, -10, 20, 20))->setZValue(3);
QGraphicsView view;
QVERIFY(view.items(0, 0).isEmpty());
view.setScene(&scene);
view.setSceneRect(-10000, -10000, 20000, 20000);
view.show();
QList<QGraphicsItem *> items = view.items(view.viewport()->rect().center());
QCOMPARE(items.size(), 5);
QCOMPARE(items.takeFirst()->zValue(), qreal(3));
QCOMPARE(items.takeFirst()->zValue(), qreal(2));
QCOMPARE(items.takeFirst()->zValue(), qreal(1));
QCOMPARE(items.takeFirst()->zValue(), qreal(0));
QCOMPARE(items.takeFirst()->zValue(), qreal(-1));
}
#if defined QT_BUILD_INTERNAL
void tst_QGraphicsView::itemsAtPosition_data()
{
QTest::addColumn<float>("rotation");
QTest::addColumn<float>("scale");
QTest::addColumn<QPoint>("viewPos");
QTest::addColumn<bool>("ignoreTransform");
QTest::addColumn<bool>("hit");
QTest::newRow("scaled + ignore transform, no hit") << 0.0f << 1000.0f << QPoint(0, 0) << true << false;
QTest::newRow("scaled + ignore transform, hit") << 0.0f << 1000.0f << QPoint(100, 100) << true << true;
QTest::newRow("rotated + scaled, no hit") << 45.0f << 2.0f << QPoint(90, 90) << false << false;
QTest::newRow("rotated + scaled, hit") << 45.0f << 2.0f << QPoint(100, 100) << false << true;
}
void tst_QGraphicsView::itemsAtPosition()
{
QFETCH(float, rotation);
QFETCH(float, scale);
QFETCH(QPoint, viewPos);
QFETCH(bool, ignoreTransform);
QFETCH(bool, hit);
FriendlyGraphicsScene scene;
scene.setSceneRect(QRect(-100, -100, 200, 200));
QGraphicsItem *item = scene.addRect(-5, -5, 10, 10);
if (ignoreTransform)
item->setFlag(QGraphicsItem::ItemIgnoresTransformations);
QGraphicsView view;
view.setFrameStyle(QFrame::NoFrame);
view.resize(200, 200);
view.scale(scale, scale);
view.rotate(rotation);
view.setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
view.setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
view.setScene(&scene);
view.showNormal();
QVERIFY(QTest::qWaitForWindowExposed(&view));
QPoint screenPos = view.viewport()->mapToGlobal(viewPos);
QPointF scenePos = view.mapToScene(viewPos);
QGraphicsScenePrivate *viewPrivate = scene.d_func();
QList<QGraphicsItem *> items;
items = viewPrivate->itemsAtPosition(screenPos, scenePos, view.viewport());
QCOMPARE(!items.empty(), hit);
}
#endif
void tst_QGraphicsView::itemsInRect()
{
QGraphicsScene scene;
scene.addRect(QRectF(-30, -10, 20, 20))->setZValue(1);
scene.addRect(QRectF(-30, -10, 20, 20))->setZValue(0);
scene.addRect(QRectF(-30, -10, 20, 20))->setZValue(2);
scene.addRect(QRectF(-30, -10, 20, 20))->setZValue(-1);
scene.addRect(QRectF(-30, -10, 20, 20))->setZValue(3);
scene.addRect(QRectF(30, -10, 20, 20))->setZValue(5);
scene.addRect(QRectF(30, -10, 20, 20))->setZValue(4);
scene.addRect(QRectF(30, -10, 20, 20))->setZValue(6);
scene.addRect(QRectF(30, -10, 20, 20))->setZValue(3);
scene.addRect(QRectF(30, -10, 20, 20))->setZValue(7);
QGraphicsView view;
QVERIFY(view.items(QRect(-100, -100, 200, 200)).isEmpty());
view.setScene(&scene);
view.setSceneRect(-10000, -10000, 20000, 20000);
view.show();
QRect leftRect = view.mapFromScene(-30, -10, 20, 20).boundingRect();
QRect rightRect = view.mapFromScene(30, -10, 20, 20).boundingRect();
QList<QGraphicsItem *> items = view.items(leftRect);
QCOMPARE(items.size(), 5);
QCOMPARE(items.takeFirst()->zValue(), qreal(3));
QCOMPARE(items.takeFirst()->zValue(), qreal(2));
QCOMPARE(items.takeFirst()->zValue(), qreal(1));
QCOMPARE(items.takeFirst()->zValue(), qreal(0));
QCOMPARE(items.takeFirst()->zValue(), qreal(-1));
items = view.items(rightRect);
QCOMPARE(items.size(), 5);
QCOMPARE(items.takeFirst()->zValue(), qreal(7));
QCOMPARE(items.takeFirst()->zValue(), qreal(6));
QCOMPARE(items.takeFirst()->zValue(), qreal(5));
QCOMPARE(items.takeFirst()->zValue(), qreal(4));
QCOMPARE(items.takeFirst()->zValue(), qreal(3));
}
class CountPaintItem : public QGraphicsRectItem
{
public:
int numPaints;
CountPaintItem(const QRectF &rect)
: QGraphicsRectItem(rect), numPaints(0)
{ }
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = nullptr) override
{
++numPaints;
QGraphicsRectItem::paint(painter, option, widget);
}
};
void tst_QGraphicsView::itemsInRect_cosmeticAdjust_data()
{
QTest::addColumn<QRect>("updateRect");
QTest::addColumn<int>("numPaints");
QTest::addColumn<bool>("adjustForAntialiasing");
// Aliased.
QTest::newRow("nil") << QRect() << 1 << false;
QTest::newRow("0, 0, 300, 100") << QRect(0, 0, 300, 100) << 1 << false;
QTest::newRow("0, 0, 100, 300") << QRect(0, 0, 100, 300) << 1 << false;
QTest::newRow("200, 0, 100, 300") << QRect(200, 0, 100, 300) << 1 << false;
QTest::newRow("0, 200, 300, 100") << QRect(0, 200, 300, 100) << 1 << false;
QTest::newRow("0, 0, 300, 99") << QRect(0, 0, 300, 99) << 0 << false;
QTest::newRow("0, 0, 99, 300") << QRect(0, 0, 99, 300) << 0 << false;
QTest::newRow("201, 0, 99, 300") << QRect(201, 0, 99, 300) << 0 << false;
QTest::newRow("0, 201, 300, 99") << QRect(0, 201, 300, 99) << 0 << false;
// Anti-aliased.
QTest::newRow("nil") << QRect() << 1 << true;
QTest::newRow("0, 0, 300, 100") << QRect(0, 0, 300, 100) << 1 << true;
QTest::newRow("0, 0, 100, 300") << QRect(0, 0, 100, 300) << 1 << true;
QTest::newRow("200, 0, 100, 300") << QRect(200, 0, 100, 300) << 1 << true;
QTest::newRow("0, 200, 300, 100") << QRect(0, 200, 300, 100) << 1 << true;
QTest::newRow("0, 0, 300, 99") << QRect(0, 0, 300, 99) << 1 << true;
QTest::newRow("0, 0, 99, 300") << QRect(0, 0, 99, 300) << 1 << true;
QTest::newRow("201, 0, 99, 300") << QRect(201, 0, 99, 300) << 1 << true;
QTest::newRow("0, 201, 300, 99") << QRect(0, 201, 300, 99) << 1 << true;
QTest::newRow("0, 0, 300, 98") << QRect(0, 0, 300, 98) << 0 << false;
QTest::newRow("0, 0, 98, 300") << QRect(0, 0, 98, 300) << 0 << false;
QTest::newRow("202, 0, 98, 300") << QRect(202, 0, 98, 300) << 0 << false;
QTest::newRow("0, 202, 300, 98") << QRect(0, 202, 300, 98) << 0 << false;
}
void tst_QGraphicsView::itemsInRect_cosmeticAdjust()
{
QFETCH(QRect, updateRect);
QFETCH(int, numPaints);
QFETCH(bool, adjustForAntialiasing);
QGraphicsScene scene(-100, -100, 200, 200);
CountPaintItem *rect = new CountPaintItem(QRectF(-50, -50, 100, 100));
rect->setPen(QPen(Qt::black, 0));
scene.addItem(rect);
QGraphicsView view(&scene);
view.setOptimizationFlag(QGraphicsView::DontAdjustForAntialiasing, !adjustForAntialiasing);
view.setRenderHint(QPainter::Antialiasing, adjustForAntialiasing);
view.setFrameStyle(0);
view.resize(300, 300);
view.showNormal();
QVERIFY(QTest::qWaitForWindowExposed(&view));
QVERIFY(QTest::qWaitForWindowActive(&view));
QTRY_VERIFY(rect->numPaints > 0);
QCoreApplication::processEvents(); // Process all queued paint events
rect->numPaints = 0;
if (updateRect.isNull())
view.viewport()->update();
else
view.viewport()->update(updateRect);
qApp->processEvents();
QTRY_COMPARE(rect->numPaints, numPaints);
}
void tst_QGraphicsView::itemsInPoly()
{
QGraphicsScene scene;
scene.addRect(QRectF(-30, -10, 20, 20))->setZValue(1);
scene.addRect(QRectF(-30, -10, 20, 20))->setZValue(0);
scene.addRect(QRectF(-30, -10, 20, 20))->setZValue(2);
scene.addRect(QRectF(-30, -10, 20, 20))->setZValue(-1);
scene.addRect(QRectF(-30, -10, 20, 20))->setZValue(3);
scene.addRect(QRectF(30, -10, 20, 20))->setZValue(5);
scene.addRect(QRectF(30, -10, 20, 20))->setZValue(4);
scene.addRect(QRectF(30, -10, 20, 20))->setZValue(6);
scene.addRect(QRectF(30, -10, 20, 20))->setZValue(3);
scene.addRect(QRectF(30, -10, 20, 20))->setZValue(7);
QGraphicsView view;
QVERIFY(view.items(QPolygon()).isEmpty());
view.setScene(&scene);
view.setSceneRect(-10000, -10000, 20000, 20000);
view.show();
QPolygon leftPoly = view.mapFromScene(QRectF(-30, -10, 20, 20));
QPolygon rightPoly = view.mapFromScene(QRectF(30, -10, 20, 20));
QList<QGraphicsItem *> items = view.items(leftPoly);
QCOMPARE(items.size(), 5);
QCOMPARE(items.takeFirst()->zValue(), qreal(3));
QCOMPARE(items.takeFirst()->zValue(), qreal(2));
QCOMPARE(items.takeFirst()->zValue(), qreal(1));
QCOMPARE(items.takeFirst()->zValue(), qreal(0));
QCOMPARE(items.takeFirst()->zValue(), qreal(-1));
items = view.items(rightPoly);
QCOMPARE(items.size(), 5);
QCOMPARE(items.takeFirst()->zValue(), qreal(7));
QCOMPARE(items.takeFirst()->zValue(), qreal(6));
QCOMPARE(items.takeFirst()->zValue(), qreal(5));
QCOMPARE(items.takeFirst()->zValue(), qreal(4));
QCOMPARE(items.takeFirst()->zValue(), qreal(3));
}
void tst_QGraphicsView::itemsInPath()
{
QGraphicsScene scene;
scene.addRect(QRectF(-30, -10, 20, 20))->setZValue(1);
scene.addRect(QRectF(-30, -10, 20, 20))->setZValue(0);
scene.addRect(QRectF(-30, -10, 20, 20))->setZValue(2);
scene.addRect(QRectF(-30, -10, 20, 20))->setZValue(-1);
scene.addRect(QRectF(-30, -10, 20, 20))->setZValue(3);
scene.addRect(QRectF(30, -10, 20, 20))->setZValue(5);
scene.addRect(QRectF(30, -10, 20, 20))->setZValue(4);
scene.addRect(QRectF(30, -10, 20, 20))->setZValue(6);
scene.addRect(QRectF(30, -10, 20, 20))->setZValue(3);
scene.addRect(QRectF(30, -10, 20, 20))->setZValue(7);
QGraphicsView view;
QVERIFY(view.items(QPainterPath()).isEmpty());
view.setScene(&scene);
view.translate(100, 400);
view.rotate(22.3);
view.setSceneRect(-10000, -10000, 20000, 20000);
view.show();
QPainterPath leftPath;
leftPath.addEllipse(QRect(view.mapFromScene(-30, -10), QSize(20, 20)));
QPainterPath rightPath;
rightPath.addEllipse(QRect(view.mapFromScene(30, -10), QSize(20, 20)));
QList<QGraphicsItem *> items = view.items(leftPath);
QCOMPARE(items.size(), 5);
QCOMPARE(items.takeFirst()->zValue(), qreal(3));
QCOMPARE(items.takeFirst()->zValue(), qreal(2));
QCOMPARE(items.takeFirst()->zValue(), qreal(1));
QCOMPARE(items.takeFirst()->zValue(), qreal(0));
QCOMPARE(items.takeFirst()->zValue(), qreal(-1));
items = view.items(rightPath);
QCOMPARE(items.size(), 5);
QCOMPARE(items.takeFirst()->zValue(), qreal(7));
QCOMPARE(items.takeFirst()->zValue(), qreal(6));
QCOMPARE(items.takeFirst()->zValue(), qreal(5));
QCOMPARE(items.takeFirst()->zValue(), qreal(4));
QCOMPARE(items.takeFirst()->zValue(), qreal(3));
}
void tst_QGraphicsView::itemAt()
{
QGraphicsScene scene;
scene.addRect(QRectF(-10, -10, 20, 20))->setZValue(1);
scene.addRect(QRectF(-10, -10, 20, 20))->setZValue(0);
scene.addRect(QRectF(-10, -10, 20, 20))->setZValue(2);
scene.addRect(QRectF(-10, -10, 20, 20))->setZValue(-1);
scene.addRect(QRectF(-10, -10, 20, 20))->setZValue(3);
QGraphicsView view;
QCOMPARE(view.itemAt(0, 0), (QGraphicsItem *)0);
view.setScene(&scene);
view.setSceneRect(-10000, -10000, 20000, 20000);
view.show();
QCOMPARE(view.itemAt(0, 0), (QGraphicsItem *)0);
QGraphicsItem* item = view.itemAt(view.viewport()->rect().center());
QVERIFY(item);
QCOMPARE(item->zValue(), qreal(3));
}
void tst_QGraphicsView::itemAt2()
{
// test precision of the itemAt() function with items that are smaller
// than 1 pixel.
QGraphicsScene scene(0, 0, 100, 100);
// Add a 0.5x0.5 item at position 0 on the scene, top-left corner at -0.25, -0.25.
QGraphicsItem *item = scene.addRect(QRectF(-0.25, -0.25, 0.5, 0.5), QPen(Qt::black, 0.1));
QGraphicsView view(&scene);
view.setFixedSize(200, 200);
view.setTransformationAnchor(QGraphicsView::NoAnchor);
view.setRenderHint(QPainter::Antialiasing);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
QApplication::processEvents();
QPoint itemViewPoint = view.mapFromScene(item->scenePos());
for (int i = 0; i < 3; ++i) {
QVERIFY(view.itemAt(itemViewPoint));
QVERIFY(!view.items(itemViewPoint).isEmpty());
QVERIFY(view.itemAt(itemViewPoint + QPoint(-1, 0)));
QVERIFY(!view.items(itemViewPoint + QPoint(-1, 0)).isEmpty());
QVERIFY(view.itemAt(itemViewPoint + QPoint(-1, -1)));
QVERIFY(!view.items(itemViewPoint + QPoint(-1, -1)).isEmpty());
QVERIFY(view.itemAt(itemViewPoint + QPoint(0, -1)));
QVERIFY(!view.items(itemViewPoint + QPoint(0, -1)).isEmpty());
item->moveBy(0.1, 0);
}
// Here
QVERIFY(view.itemAt(itemViewPoint));
QVERIFY(!view.items(itemViewPoint).isEmpty());
QVERIFY(view.itemAt(itemViewPoint + QPoint(0, -1)));
QVERIFY(!view.items(itemViewPoint + QPoint(0, -1)).isEmpty());
if (sizeof(qreal) != sizeof(double))
QSKIP("Skipped due to rounding errors");
// Not here
QVERIFY(!view.itemAt(itemViewPoint + QPoint(-1, 0)));
QVERIFY(view.items(itemViewPoint + QPoint(-1, 0)).isEmpty());
QVERIFY(!view.itemAt(itemViewPoint + QPoint(-1, -1)));
QVERIFY(view.items(itemViewPoint + QPoint(-1, -1)).isEmpty());
}
void tst_QGraphicsView::mapToScene()
{
// Uncomment the commented-out code to see what's going on. It doesn't
// affect the test; it just slows it down.
QGraphicsScene scene;
scene.addPixmap(QPixmap("3D-Qt-1-2.png"));
QWidget topLevel;
QGraphicsView view(&topLevel);
view.setScene(&scene);
view.setSceneRect(-500, -500, 1000, 1000);
QSize viewSize(300,300);
view.setFixedSize(viewSize);
topLevel.show();
QApplication::processEvents();
QVERIFY(view.isVisible());
QCOMPARE(view.size(), viewSize);
// First once without setting the scene rect
#ifdef Q_PROCESSOR_ARM
const int step = 20;
#else
const int step = 5;
#endif
for (int x = 0; x < view.width(); x += step) {
for (int y = 0; y < view.height(); y += step) {
QCOMPARE(view.mapToScene(QPoint(x, y)),
QPointF(view.horizontalScrollBar()->value() + x,
view.verticalScrollBar()->value() + y));
}
}
for (int sceneRectHeight = 250; sceneRectHeight < 1000; sceneRectHeight += 250) {
for (int sceneRectWidth = 250; sceneRectWidth < 1000; sceneRectWidth += 250) {
view.setSceneRect(QRectF(-int(sceneRectWidth / 2), -int(sceneRectHeight / 2),
sceneRectWidth, sceneRectHeight));
QApplication::processEvents();
int hmin = view.horizontalScrollBar()->minimum();
int hmax = view.horizontalScrollBar()->maximum();
int hstep = (hmax - hmin) / 3;
int vmin = view.verticalScrollBar()->minimum();
int vmax = view.verticalScrollBar()->maximum();
int vstep = (vmax - vmin) / 3;
for (int hscrollValue = hmin; hscrollValue < hmax; hscrollValue += hstep) {
for (int vscrollValue = vmin; vscrollValue < vmax; vscrollValue += vstep) {
view.horizontalScrollBar()->setValue(hscrollValue);
view.verticalScrollBar()->setValue(vscrollValue);
QApplication::processEvents();
int h = view.horizontalScrollBar()->value();
int v = view.verticalScrollBar()->value();
for (int x = 0; x < view.width(); x += step) {
for (int y = 0; y < view.height(); y += step) {
QCOMPARE(view.mapToScene(QPoint(x, y)), QPointF(h + x, v + y));
QCOMPARE(view.mapFromScene(QPointF(h + x, v + y)), QPoint(x, y));
}
}
}
}
}
}
}
void tst_QGraphicsView::mapToScenePoint()
{
QGraphicsScene scene;
QGraphicsView view(&scene);
setFrameless(&view);
view.rotate(90);
view.setFixedSize(117, 117);
view.show();
QPoint center = view.viewport()->rect().center();
QCOMPARE(view.mapToScene(center + QPoint(10, 0)),
view.mapToScene(center) + QPointF(0, -10));
}
void tst_QGraphicsView::mapToSceneRect_data()
{
QTest::addColumn<QRect>("viewRect");
QTest::addColumn<QPolygonF>("scenePoly");
QTest::addColumn<qreal>("rotation");
QTest::newRow("nil") << QRect() << QPolygonF() << qreal(0);
QTest::newRow("0, 0, 1, 1") << QRect(0, 0, 1, 1) << QPolygonF(QRectF(0, 0, 1, 1)) << qreal(0);
QTest::newRow("0, 0, 10, 10") << QRect(0, 0, 10, 10) << QPolygonF(QRectF(0, 0, 10, 10)) << qreal(0);
QTest::newRow("nil") << QRect() << QPolygonF() << qreal(90);
QPolygonF p;
p << QPointF(0, 0) << QPointF(0, -1) << QPointF(1, -1) << QPointF(1, 0) << QPointF(0, 0);
QTest::newRow("0, 0, 1, 1") << QRect(0, 0, 1, 1)
<< p
<< qreal(90);
p.clear();
p << QPointF(0, 0) << QPointF(0, -10) << QPointF(10, -10) << QPointF(10, 0) << QPointF(0, 0);
QTest::newRow("0, 0, 10, 10") << QRect(0, 0, 10, 10)
<< p
<< qreal(90);
}
void tst_QGraphicsView::mapToSceneRect()
{
QFETCH(QRect, viewRect);
QFETCH(QPolygonF, scenePoly);
QFETCH(qreal, rotation);
QGraphicsScene scene(-1000, -1000, 2000, 2000);
scene.addRect(25, -25, 50, 50);
QGraphicsView view(&scene);
view.setFrameStyle(0);
view.setAlignment(Qt::AlignTop | Qt::AlignLeft);
view.setFixedSize(200, 200);
view.setTransformationAnchor(QGraphicsView::NoAnchor);
view.setResizeAnchor(QGraphicsView::NoAnchor);
view.show();
view.rotate(rotation);
QPolygonF poly = view.mapToScene(viewRect);
if (!poly.isEmpty())
poly << poly[0];
QCOMPARE(poly, scenePoly);
}
void tst_QGraphicsView::mapToScenePoly()
{
QGraphicsScene scene;
QGraphicsView view(&scene);
setFrameless(&view);
view.translate(100, 100);
view.setFixedSize(117, 117);
view.show();
QPoint center = view.viewport()->rect().center();
QRect rect(center + QPoint(10, 0), QSize(10, 10));
QPolygon poly;
poly << rect.topLeft();
poly << rect.topRight();
poly << rect.bottomRight();
poly << rect.bottomLeft();
QPolygonF poly2;
poly2 << view.mapToScene(rect.topLeft());
poly2 << view.mapToScene(rect.topRight());
poly2 << view.mapToScene(rect.bottomRight());
poly2 << view.mapToScene(rect.bottomLeft());
QCOMPARE(view.mapToScene(poly), poly2);
}
void tst_QGraphicsView::mapToScenePath()
{
QGraphicsScene scene;
QGraphicsView view(&scene);
view.setSceneRect(-300, -300, 600, 600);
view.translate(10, 10);
view.setFixedSize(300, 300);
view.show();
QRect rect(QPoint(10, 0), QSize(10, 10));
QPainterPath path;
path.addRect(rect);
QPainterPath path2;
path2.addRect(rect.translated(view.horizontalScrollBar()->value() - 10,
view.verticalScrollBar()->value() - 10));
QCOMPARE(view.mapToScene(path), path2);
}
void tst_QGraphicsView::mapFromScenePoint()
{
{
QGraphicsScene scene;
QGraphicsView view(&scene);
view.rotate(90);
view.scale(10, 10);
view.setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
view.setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
view.show();
QPoint mapped = view.mapFromScene(0, 0);
QPoint center = view.viewport()->rect().center();
if (qAbs(mapped.x() - center.x()) >= 2
|| qAbs(mapped.y() - center.y()) >= 2) {
QString error = QString("Compared values are not the same\n\tActual: (%1, %2)\n\tExpected: (%3, %4)")
.arg(mapped.x()).arg(mapped.y()).arg(center.x()).arg(center.y());
QFAIL(qPrintable(error));
}
}
{
QWidget toplevel;
QGraphicsScene scene(0, 0, 200, 200);
scene.addRect(QRectF(0, 0, 200, 200), QPen(Qt::black, 1));
QGraphicsView view(&scene, &toplevel);
view.ensurePolished();
view.resize(view.sizeHint());
toplevel.show();
QCOMPARE(view.mapFromScene(0, 0), QPoint(0, 0));
QCOMPARE(view.mapFromScene(0.4, 0.4), QPoint(0, 0));
QCOMPARE(view.mapFromScene(0.5, 0.5), QPoint(1, 1));
QCOMPARE(view.mapFromScene(0.9, 0.9), QPoint(1, 1));
QCOMPARE(view.mapFromScene(1.0, 1.0), QPoint(1, 1));
QCOMPARE(view.mapFromScene(100, 100), QPoint(100, 100));
QCOMPARE(view.mapFromScene(100.5, 100.5), QPoint(101, 101));
QCOMPARE(view.mapToScene(0, 0), QPointF(0, 0));
QCOMPARE(view.mapToScene(1, 1), QPointF(1, 1));
QCOMPARE(view.mapToScene(100, 100), QPointF(100, 100));
}
}
void tst_QGraphicsView::mapFromSceneRect()
{
QGraphicsScene scene;
QWidget topLevel;
QGraphicsView view(&scene,&topLevel);
view.rotate(90);
view.setFixedSize(200, 200);
view.setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
view.setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
topLevel.show();
QVERIFY(QTest::qWaitForWindowActive(&view));
QPolygon polygon;
polygon << QPoint(98, 98);
polygon << QPoint(98, 108);
polygon << QPoint(88, 108);
polygon << QPoint(88, 98);
QPolygon viewPolygon = view.mapFromScene(0, 0, 10, 10);
for (int i = 0; i < 4; ++i) {
QVERIFY(qAbs(viewPolygon[i].x() - polygon[i].x()) < 3);
QVERIFY(qAbs(viewPolygon[i].y() - polygon[i].y()) < 3);
}
QPoint pt = view.mapFromScene(QPointF());
QPolygon p;
p << pt << pt << pt << pt;
QCOMPARE(view.mapFromScene(QRectF()), p);
}
void tst_QGraphicsView::mapFromScenePoly()
{
QGraphicsScene scene;
QGraphicsView view(&scene);
view.rotate(90);
view.setFixedSize(200, 200);
view.setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
view.setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
view.show();
QPolygonF polygon;
polygon << QPoint(0, 0);
polygon << QPoint(10, 0);
polygon << QPoint(10, 10);
polygon << QPoint(0, 10);
QPolygon polygon2;
polygon2 << QPoint(98, 98);
polygon2 << QPoint(98, 108);
polygon2 << QPoint(88, 108);
polygon2 << QPoint(88, 98);
QPolygon viewPolygon = view.mapFromScene(polygon);
for (int i = 0; i < 4; ++i) {
QVERIFY(qAbs(viewPolygon[i].x() - polygon2[i].x()) < 3);
QVERIFY(qAbs(viewPolygon[i].y() - polygon2[i].y()) < 3);
}
}
void tst_QGraphicsView::mapFromScenePath()
{
QGraphicsScene scene;
QGraphicsView view(&scene);
view.rotate(90);
view.setFixedSize(200, 200);
view.setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
view.setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
view.show();
QPolygonF polygon;
polygon << QPoint(0, 0);
polygon << QPoint(10, 0);
polygon << QPoint(10, 10);
polygon << QPoint(0, 10);
QPainterPath path;
path.addPolygon(polygon);
QPolygon polygon2;
polygon2 << QPoint(98, 98);
polygon2 << QPoint(98, 108);
polygon2 << QPoint(88, 108);
polygon2 << QPoint(88, 98);
QPainterPath path2;
path2.addPolygon(polygon2);
QPolygonF pathPoly = view.mapFromScene(path).toFillPolygon();
QPolygonF path2Poly = path2.toFillPolygon();
for (int i = 0; i < pathPoly.size(); ++i) {
QVERIFY(qAbs(pathPoly[i].x() - path2Poly[i].x()) < 3);
QVERIFY(qAbs(pathPoly[i].y() - path2Poly[i].y()) < 3);
}
}
void tst_QGraphicsView::sendEvent()
{
QGraphicsScene scene;
TestItem *item = new TestItem;
scene.addItem(item);
item->setFlag(QGraphicsItem::ItemIsFocusable);
item->setFlag(QGraphicsItem::ItemIsMovable);
QGraphicsView view(&scene);
view.show();
QApplicationPrivate::setActiveWindow(&view);
QVERIFY(QTest::qWaitForWindowExposed(&view));
QVERIFY(QTest::qWaitForWindowActive(&view));
QCOMPARE(QApplication::activeWindow(), static_cast<QWidget *>(&view));
item->setFocus();
QCOMPARE(scene.focusItem(), (QGraphicsItem *)item);
QCOMPARE(item->events.size(), 2);
QCOMPARE(item->events.last(), QEvent::FocusIn);
QPoint itemPoint = view.mapFromScene(item->scenePos());
sendMousePress(view.viewport(), itemPoint);
QCOMPARE(item->events.size(), 4);
QCOMPARE(item->events.at(item->events.size() - 2), QEvent::GrabMouse);
QCOMPARE(item->events.at(item->events.size() - 1), QEvent::GraphicsSceneMousePress);
QMouseEvent mouseMoveEvent(QEvent::MouseMove, itemPoint, view.viewport()->mapToGlobal(itemPoint),
Qt::LeftButton, Qt::LeftButton, {});
QApplication::sendEvent(view.viewport(), &mouseMoveEvent);
QCOMPARE(item->events.size(), 5);
QCOMPARE(item->events.last(), QEvent::GraphicsSceneMouseMove);
QMouseEvent mouseReleaseEvent(QEvent::MouseButtonRelease, itemPoint,
view.viewport()->mapToGlobal(itemPoint),
Qt::LeftButton, {}, {});
QApplication::sendEvent(view.viewport(), &mouseReleaseEvent);
QCOMPARE(item->events.size(), 7);
QCOMPARE(item->events.at(item->events.size() - 2), QEvent::GraphicsSceneMouseRelease);
QCOMPARE(item->events.at(item->events.size() - 1), QEvent::UngrabMouse);
QTest::keyPress(view.viewport(), Qt::Key_Space);
QCOMPARE(item->events.size(), 9);
QCOMPARE(item->events.at(item->events.size() - 2), QEvent::ShortcutOverride);
QCOMPARE(item->events.last(), QEvent::KeyPress);
}
#if QT_CONFIG(wheelevent)
class MouseWheelScene : public QGraphicsScene
{
public:
Qt::Orientation orientation;
void wheelEvent(QGraphicsSceneWheelEvent *event) override
{
orientation = event->orientation();
QGraphicsScene::wheelEvent(event);
}
};
void tst_QGraphicsView::wheelEvent()
{
// Create a scene with an invalid orientation.
MouseWheelScene scene;
scene.orientation = Qt::Orientation(-1);
QGraphicsWidget *widget = new QGraphicsWidget;
widget->setGeometry(0, 0, 400, 400);
widget->setFocusPolicy(Qt::WheelFocus);
EventSpy spy(widget, QEvent::GraphicsSceneWheel);
QCOMPARE(spy.count(), 0);
scene.addItem(widget);
// Assign a view.
QGraphicsView view(&scene);
view.show();
QApplicationPrivate::setActiveWindow(&view);
QVERIFY(QTest::qWaitForWindowExposed(&view));
QVERIFY(QTest::qWaitForWindowActive(&view));
QCOMPARE(QApplication::activeWindow(), static_cast<QWidget *>(&view));
// Send a wheel event with horizontal orientation.
{
QWheelEvent event(view.mapFromScene(widget->boundingRect().center()),
view.mapToGlobal(view.mapFromScene(widget->boundingRect().center())),
QPoint(), QPoint(120, 0), Qt::NoButton, Qt::NoModifier, Qt::NoScrollPhase, false);
QApplication::sendEvent(view.viewport(), &event);
QCOMPARE(scene.orientation, Qt::Horizontal);
}
// Send a wheel event with vertical orientation.
{
QWheelEvent event(view.mapFromScene(widget->boundingRect().center()),
view.mapToGlobal(view.mapFromScene(widget->boundingRect().center())),
QPoint(), QPoint(0, 120), Qt::NoButton, Qt::NoModifier, Qt::NoScrollPhase, false);
QApplication::sendEvent(view.viewport(), &event);
QCOMPARE(scene.orientation, Qt::Vertical);
}
QCOMPARE(spy.count(), 2);
QVERIFY(widget->hasFocus());
}
#endif // QT_CONFIG(wheelevent)
#ifndef QT_NO_CURSOR
void tst_QGraphicsView::cursor()
{
QGraphicsScene scene;
QGraphicsItem *item = scene.addRect(QRectF(-10, -10, 20, 20));
item->setCursor(Qt::IBeamCursor);
QGraphicsView view(&scene);
view.setFixedSize(400, 400);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
QCOMPARE(view.viewport()->cursor().shape(), QCursor().shape());
view.viewport()->setCursor(Qt::PointingHandCursor);
QCOMPARE(view.viewport()->cursor().shape(), Qt::PointingHandCursor);
sendMouseMove(view.viewport(), view.mapFromScene(0, 0));
QCOMPARE(view.viewport()->cursor().shape(), Qt::IBeamCursor);
sendMouseMove(view.viewport(), QPoint(5, 5));
QCOMPARE(view.viewport()->cursor().shape(), Qt::PointingHandCursor);
}
#endif
#ifndef QT_NO_CURSOR
void tst_QGraphicsView::cursor2()
{
QGraphicsScene scene;
QGraphicsItem *item = scene.addRect(QRectF(-10, -10, 20, 20));
item->setCursor(Qt::IBeamCursor);
item->setZValue(1);
QGraphicsItem *item2 = scene.addRect(QRectF(-20, -20, 40, 40));
item2->setZValue(0);
QGraphicsView view(&scene);
view.viewport()->setCursor(Qt::PointingHandCursor);
view.setFixedSize(400, 400);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
sendMouseMove(view.viewport(), view.mapFromScene(-30, -30));
QTRY_COMPARE(view.viewport()->cursor().shape(), Qt::PointingHandCursor);
sendMouseMove(view.viewport(), view.mapFromScene(0, 0));
QTRY_COMPARE(view.viewport()->cursor().shape(), Qt::IBeamCursor);
sendMouseMove(view.viewport(), view.mapFromScene(-30, -30));
QTRY_COMPARE(view.viewport()->cursor().shape(), Qt::PointingHandCursor);
sendMouseMove(view.viewport(), view.mapFromScene(0, 0));
QTRY_COMPARE(view.viewport()->cursor().shape(), Qt::IBeamCursor);
sendMouseMove(view.viewport(), view.mapFromScene(-15, 0));
QTRY_COMPARE(view.viewport()->cursor().shape(), Qt::PointingHandCursor);
view.setDragMode(QGraphicsView::ScrollHandDrag);
sendMouseMove(view.viewport(), view.mapFromScene(-30, -30));
QTRY_COMPARE(view.viewport()->cursor().shape(), Qt::OpenHandCursor);
sendMouseMove(view.viewport(), view.mapFromScene(0, 0));
QTRY_COMPARE(view.viewport()->cursor().shape(), Qt::IBeamCursor);
sendMouseMove(view.viewport(), view.mapFromScene(-15, -15));
QTRY_COMPARE(view.viewport()->cursor().shape(), Qt::OpenHandCursor);
view.setDragMode(QGraphicsView::NoDrag);
QTRY_COMPARE(view.viewport()->cursor().shape(), Qt::ArrowCursor);
view.viewport()->setCursor(Qt::PointingHandCursor);
QTRY_COMPARE(view.viewport()->cursor().shape(), Qt::PointingHandCursor);
item2->setCursor(Qt::SizeAllCursor);
sendMouseMove(view.viewport(), view.mapFromScene(-30, -30));
QTRY_COMPARE(view.viewport()->cursor().shape(), Qt::PointingHandCursor);
sendMouseMove(view.viewport(), view.mapFromScene(-15, -15));
QTRY_COMPARE(view.viewport()->cursor().shape(), Qt::SizeAllCursor);
sendMouseMove(view.viewport(), view.mapFromScene(0, 0));
QTRY_COMPARE(view.viewport()->cursor().shape(), Qt::IBeamCursor);
sendMouseMove(view.viewport(), view.mapFromScene(-15, -15));
QTRY_COMPARE(view.viewport()->cursor().shape(), Qt::SizeAllCursor);
sendMouseMove(view.viewport(), view.mapFromScene(0, 0));
QTRY_COMPARE(view.viewport()->cursor().shape(), Qt::IBeamCursor);
sendMouseMove(view.viewport(), view.mapFromScene(-30, -30));
QTRY_COMPARE(view.viewport()->cursor().shape(), Qt::PointingHandCursor);
view.setDragMode(QGraphicsView::ScrollHandDrag);
sendMouseMove(view.viewport(), view.mapFromScene(-30, -30));
QTRY_COMPARE(view.viewport()->cursor().shape(), Qt::OpenHandCursor);
sendMouseMove(view.viewport(), view.mapFromScene(0, 0));
QTRY_COMPARE(view.viewport()->cursor().shape(), Qt::IBeamCursor);
sendMouseMove(view.viewport(), view.mapFromScene(-15, -15));
QTRY_COMPARE(view.viewport()->cursor().shape(), Qt::SizeAllCursor);
}
#endif
void tst_QGraphicsView::transformationAnchor()
{
QGraphicsScene scene(-1000, -1000, 2000, 2000);
scene.addRect(QRectF(-50, -50, 100, 100), QPen(Qt::black), QBrush(Qt::blue));
QGraphicsView view(&scene);
setFrameless(&view);
for (int i = 0; i < 2; ++i) {
view.resize(100, 100);
view.show();
if (i == 0) {
QCOMPARE(view.transformationAnchor(), QGraphicsView::AnchorViewCenter);
} else {
view.setTransformationAnchor(QGraphicsView::NoAnchor);
}
view.centerOn(0, 0);
view.horizontalScrollBar()->setValue(100);
QApplication::processEvents();
QPointF center = view.mapToScene(view.viewport()->rect().center());
view.scale(10, 10);
QPointF newCenter = view.mapToScene(view.viewport()->rect().center());
if (i == 0) {
qreal slack = 3;
QVERIFY(qAbs(newCenter.x() - center.x()) < slack);
QVERIFY(qAbs(newCenter.y() - center.y()) < slack);
} else {
qreal slack = qreal(0.3);
QVERIFY(qAbs(newCenter.x() - center.x() / 10) < slack);
QVERIFY(qAbs(newCenter.y() - center.y() / 10) < slack);
}
}
}
void tst_QGraphicsView::resizeAnchor()
{
QGraphicsScene scene(-1000, -1000, 2000, 2000);
scene.addRect(QRectF(-50, -50, 100, 100), QPen(Qt::black), QBrush(Qt::blue));
QGraphicsView view(&scene);
setFrameless(&view);
for (int i = 0; i < 2; ++i) {
view.resize(100, 100);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
QApplication::processEvents();
if (i == 0) {
QCOMPARE(view.resizeAnchor(), QGraphicsView::NoAnchor);
} else {
view.setResizeAnchor(QGraphicsView::AnchorViewCenter);
}
view.centerOn(0, 0);
QTest::qWait(25);
QPointF f = view.mapToScene(50, 50);
QPointF center = view.mapToScene(view.viewport()->rect().center());
QApplication::processEvents();
for (int size = 200; size <= 400; size += 25) {
view.resize(size, size);
if (i == 0) {
QTRY_COMPARE(view.mapToScene(50, 50), f);
QTRY_VERIFY(view.mapToScene(view.viewport()->rect().center()) != center);
} else {
QTRY_VERIFY(view.mapToScene(50, 50) != f);
QPointF newCenter = view.mapToScene(view.viewport()->rect().center());
int slack = 3;
QVERIFY(qAbs(newCenter.x() - center.x()) < slack);
QVERIFY(qAbs(newCenter.y() - center.y()) < slack);
}
QApplication::processEvents();
}
}
}
class CustomView : public QGraphicsView
{
Q_OBJECT
public:
CustomView(QGraphicsScene *s = nullptr) : QGraphicsView(s) {}
CustomView(QGraphicsScene *s, QWidget *parent)
: QGraphicsView(s, parent) {}
QList<QRegion> lastUpdateRegions;
bool painted;
protected:
void paintEvent(QPaintEvent *event) override
{
lastUpdateRegions << event->region();
painted = true;
QGraphicsView::paintEvent(event);
}
};
void tst_QGraphicsView::viewportUpdateMode()
{
QGraphicsScene scene(0, 0, 100, 100);
scene.setBackgroundBrush(Qt::red);
CustomView view;
QScreen *screen = QGuiApplication::primaryScreen();
view.setFixedSize(QSize(500, 500).boundedTo(screen->availableGeometry().size())); // 500 is too big for all common smartphones
view.setScene(&scene);
QCOMPARE(view.viewportUpdateMode(), QGraphicsView::MinimalViewportUpdate);
// Show the view, and initialize our test.
view.show();
QApplicationPrivate::setActiveWindow(&view);
QVERIFY(QTest::qWaitForWindowExposed(&view));
QVERIFY(QTest::qWaitForWindowActive(&view));
QTRY_VERIFY(!view.lastUpdateRegions.isEmpty());
view.lastUpdateRegions.clear();
// Issue two scene updates.
scene.update(QRectF(0, 0, 10, 10));
scene.update(QRectF(20, 0, 10, 10));
// The view gets two updates for the update scene updates.
QTRY_VERIFY(!view.lastUpdateRegions.isEmpty());
#ifndef Q_OS_MAC //cocoa doesn't support drawing regions
QCOMPARE(view.lastUpdateRegions.last().rectCount(), 2);
QCOMPARE(view.lastUpdateRegions.last().begin()[0].size(), QSize(14, 14));
QCOMPARE(view.lastUpdateRegions.last().begin()[1].size(), QSize(14, 14));
#endif
// Set full update mode.
view.setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
QCOMPARE(view.viewportUpdateMode(), QGraphicsView::FullViewportUpdate);
view.lastUpdateRegions.clear();
// Issue two scene updates.
scene.update(QRectF(0, 0, 10, 10));
scene.update(QRectF(20, 0, 10, 10));
qApp->processEvents();
qApp->processEvents();
// The view gets one full viewport update for the update scene updates.
QCOMPARE(view.lastUpdateRegions.last().rectCount(), 1);
QCOMPARE(view.lastUpdateRegions.last().begin()[0].size(), view.viewport()->size());
view.lastUpdateRegions.clear();
// Set smart update mode
view.setViewportUpdateMode(QGraphicsView::SmartViewportUpdate);
QCOMPARE(view.viewportUpdateMode(), QGraphicsView::SmartViewportUpdate);
// Issue 100 mini-updates
for (int i = 0; i < 10; ++i) {
for (int j = 0; j < 10; ++j) {
scene.update(QRectF(i * 3, j * 3, 1, 1));
}
}
qApp->processEvents();
qApp->processEvents();
// The view gets one bounding rect update.
QCOMPARE(view.lastUpdateRegions.last().rectCount(), 1);
QCOMPARE(view.lastUpdateRegions.last().begin()[0].size(), QSize(32, 32));
// Set no update mode
view.setViewportUpdateMode(QGraphicsView::NoViewportUpdate);
QCOMPARE(view.viewportUpdateMode(), QGraphicsView::NoViewportUpdate);
// Issue two scene updates.
view.lastUpdateRegions.clear();
TestItem item;
scene.addItem(&item);
item.moveBy(10, 10);
scene.update(QRectF(0, 0, 10, 10));
scene.update(QRectF(20, 0, 10, 10));
qApp->processEvents();
qApp->processEvents();
// The view should not get any painting calls from the scene updates
QCOMPARE(view.lastUpdateRegions.size(), 0);
}
void tst_QGraphicsView::viewportUpdateMode2()
{
QWidget toplevel;
// Create a view with viewport rect equal to QRect(0, 0, 200, 200).
QGraphicsScene dummyScene;
CustomView view(0, &toplevel);
view.painted = false;
view.setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
view.setScene(&dummyScene);
view.ensurePolished(); // make sure we get the right content margins
const QMargins margins = view.contentsMargins();
view.resize(200 + margins.left() + margins.right(), 200 + margins.top() + margins.bottom());
toplevel.show();
QApplicationPrivate::setActiveWindow(&toplevel);
QVERIFY(QTest::qWaitForWindowExposed(&toplevel));
QVERIFY(QTest::qWaitForWindowActive(&toplevel));
QTRY_VERIFY(view.painted);
const QRect viewportRect = view.viewport()->rect();
QCOMPARE(viewportRect, QRect(0, 0, 200, 200));
#if defined QT_BUILD_INTERNAL
QGraphicsViewPrivate *viewPrivate = static_cast<QGraphicsViewPrivate *>(qt_widget_private(&view));
QRect boundingRect;
const QRect rect1(0, 0, 10, 10);
QVERIFY(viewPrivate->updateRect(rect1));
QVERIFY(!viewPrivate->fullUpdatePending);
boundingRect |= rect1;
QCOMPARE(viewPrivate->dirtyBoundingRect, boundingRect);
const QRect rect2(50, 50, 10, 10);
QVERIFY(viewPrivate->updateRect(rect2));
QVERIFY(!viewPrivate->fullUpdatePending);
boundingRect |= rect2;
QCOMPARE(viewPrivate->dirtyBoundingRect, boundingRect);
const QRect rect3(190, 190, 10, 10);
QVERIFY(viewPrivate->updateRect(rect3));
QVERIFY(viewPrivate->fullUpdatePending);
boundingRect |= rect3;
QCOMPARE(viewPrivate->dirtyBoundingRect, boundingRect);
view.lastUpdateRegions.clear();
viewPrivate->processPendingUpdates();
QTRY_COMPARE(view.lastUpdateRegions.size(), 1);
// Note that we adjust by 2 for antialiasing.
QCOMPARE(view.lastUpdateRegions.at(0), QRegion(boundingRect.adjusted(-2, -2, 2, 2) & viewportRect));
#endif
}
#if QT_CONFIG(draganddrop)
void tst_QGraphicsView::acceptDrops()
{
QGraphicsView view;
// Excepted default behavior.
QVERIFY(view.acceptDrops());
QVERIFY(view.viewport()->acceptDrops());
// Excepted behavior with no drops.
view.setAcceptDrops(false);
QVERIFY(!view.acceptDrops());
QVERIFY(!view.viewport()->acceptDrops());
// Setting a widget with drops on a QGraphicsView without drops.
QWidget *widget = new QWidget;
widget->setAcceptDrops(true);
view.setViewport(widget);
QVERIFY(!view.acceptDrops());
QVERIFY(!view.viewport()->acceptDrops());
// Switching the view to accept drops.
view.setAcceptDrops(true);
QVERIFY(view.acceptDrops());
QVERIFY(view.viewport()->acceptDrops());
// Setting a widget with no drops on a QGraphicsView with drops.
widget = new QWidget;
widget->setAcceptDrops(false);
view.setViewport(widget);
QVERIFY(view.viewport()->acceptDrops());
QVERIFY(view.acceptDrops());
// Switching the view to not accept drops.
view.setAcceptDrops(false);
QVERIFY(!view.viewport()->acceptDrops());
}
#endif
void tst_QGraphicsView::optimizationFlags()
{
QGraphicsView view;
QVERIFY(!view.optimizationFlags());
view.setOptimizationFlag(QGraphicsView::DontSavePainterState);
QVERIFY(view.optimizationFlags() & QGraphicsView::DontSavePainterState);
view.setOptimizationFlag(QGraphicsView::DontSavePainterState, false);
QVERIFY(!view.optimizationFlags());
view.setOptimizationFlag(QGraphicsView::DontAdjustForAntialiasing);
QVERIFY(view.optimizationFlags() & QGraphicsView::DontAdjustForAntialiasing);
view.setOptimizationFlag(QGraphicsView::DontAdjustForAntialiasing, false);
QVERIFY(!view.optimizationFlags());
view.setOptimizationFlags(QGraphicsView::DontAdjustForAntialiasing);
QCOMPARE(view.optimizationFlags(), QGraphicsView::OptimizationFlags(QGraphicsView::DontAdjustForAntialiasing));
}
class MessUpPainterItem : public QGraphicsRectItem
{
public:
using QGraphicsRectItem::QGraphicsRectItem;
bool dirtyPainter = false;
bool receivedPaintEvent = false;
void paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *w) override
{
receivedPaintEvent = true;
dirtyPainter = (painter->pen().color() != w->palette().color(w->foregroundRole()));
painter->setPen(Qt::red);
}
};
class MyGraphicsView : public QGraphicsView
{
public:
MyGraphicsView(QGraphicsScene * scene) : QGraphicsView(scene)
{ }
void drawBackground(QPainter * painter, const QRectF & rect) override
{
painter->setCompositionMode(QPainter::CompositionMode_Source);
painter->drawRect(rect);
}
void drawItems (QPainter * painter, int numItems, QGraphicsItem *items[], const QStyleOptionGraphicsItem options[]) override
{
if (!(optimizationFlags() & QGraphicsView::DontSavePainterState))
QCOMPARE(painter->compositionMode(),QPainter::CompositionMode_SourceOver);
else
QCOMPARE(painter->compositionMode(),QPainter::CompositionMode_Source);
QGraphicsView::drawItems(painter,numItems,items,options);
}
};
void tst_QGraphicsView::optimizationFlags_dontSavePainterState()
{
MessUpPainterItem *parent = new MessUpPainterItem(QRectF(0, 0, 100, 100));
MessUpPainterItem *child = new MessUpPainterItem(QRectF(0, 0, 100, 100));
child->setParentItem(parent);
QGraphicsScene scene;
scene.addItem(parent);
QGraphicsView view(&scene);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
parent->receivedPaintEvent = false;
child->receivedPaintEvent = false;
view.viewport()->update();
QTRY_VERIFY(parent->receivedPaintEvent);
QTRY_VERIFY(child->receivedPaintEvent);
QVERIFY(!parent->dirtyPainter);
QVERIFY(!child->dirtyPainter);
view.setOptimizationFlags(QGraphicsView::DontSavePainterState);
parent->receivedPaintEvent = false;
child->receivedPaintEvent = false;
view.viewport()->update();
QTRY_VERIFY(parent->receivedPaintEvent);
QTRY_VERIFY(child->receivedPaintEvent);
QVERIFY(!parent->dirtyPainter);
QVERIFY(child->dirtyPainter);
MyGraphicsView painter(&scene);
painter.show();
QVERIFY(QTest::qWaitForWindowExposed(&painter));
MyGraphicsView painter2(&scene);
painter2.setOptimizationFlag(QGraphicsView::DontSavePainterState,true);
painter2.show();
QVERIFY(QTest::qWaitForWindowExposed(&painter2));
}
void tst_QGraphicsView::optimizationFlags_dontSavePainterState2_data()
{
QTest::addColumn<bool>("savePainter");
QTest::addColumn<bool>("indirectPainting");
QTest::newRow("With painter state protection, without indirect painting") << true << false;
QTest::newRow("Without painter state protection, without indirect painting") << false << false;
QTest::newRow("With painter state protectionm, with indirect painting") << true << true;
QTest::newRow("Without painter state protection, with indirect painting") << false << true;
}
void tst_QGraphicsView::optimizationFlags_dontSavePainterState2()
{
QFETCH(bool, savePainter);
QFETCH(bool, indirectPainting);
class MyScene : public QGraphicsScene
{
public:
void drawBackground(QPainter *p, const QRectF &) override
{ transformInDrawBackground = p->worldTransform(); opacityInDrawBackground = p->opacity(); }
void drawForeground(QPainter *p, const QRectF &) override
{ transformInDrawForeground = p->worldTransform(); opacityInDrawForeground = p->opacity(); }
QTransform transformInDrawBackground;
QTransform transformInDrawForeground;
qreal opacityInDrawBackground;
qreal opacityInDrawForeground;
};
MyScene scene;
// Add transformed dummy items to make sure the painter's worldTransform() is changed in drawItems.
QGraphicsRectItem *rectA = scene.addRect(0, 0, 20, 20);
QGraphicsRectItem *rectB = scene.addRect(50, 50, 20, 20);
rectA->setTransform(QTransform::fromScale(2, 2));
rectA->setPen(QPen(Qt::black, 0));
rectB->setTransform(QTransform::fromTranslate(200, 200));
rectB->setPen(QPen(Qt::black, 0));
foreach (QGraphicsItem *item, scene.items())
item->setOpacity(0.6);
CustomView view(&scene);
if (!savePainter)
view.setOptimizationFlag(QGraphicsView::DontSavePainterState);
view.setOptimizationFlag(QGraphicsView::IndirectPainting, indirectPainting);
view.rotate(45);
view.scale(1.5, 1.5);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
// Make sure the view is repainted; otherwise the tests below will fail.
view.viewport()->update();
QTRY_VERIFY(view.painted);
// Make sure the painter's world transform is preserved after drawItems.
QTransform expectedTransform = view.viewportTransform();
QVERIFY(!expectedTransform.isIdentity());
QCOMPARE(scene.transformInDrawForeground, expectedTransform);
QCOMPARE(scene.transformInDrawBackground, expectedTransform);
qreal expectedOpacity = 1.0;
QCOMPARE(scene.opacityInDrawBackground, expectedOpacity);
QCOMPARE(scene.opacityInDrawForeground, expectedOpacity);
// Trigger more painting, this time from QGraphicsScene::render.
QImage image(scene.sceneRect().size().toSize(), QImage::Format_RGB32);
QPainter painter(&image);
scene.render(&painter);
painter.end();
expectedTransform = QTransform();
QCOMPARE(scene.transformInDrawForeground, expectedTransform);
QCOMPARE(scene.transformInDrawBackground, expectedTransform);
QCOMPARE(scene.opacityInDrawBackground, expectedOpacity);
QCOMPARE(scene.opacityInDrawForeground, expectedOpacity);
// Trigger more painting with another opacity on the painter.
painter.begin(&image);
painter.setOpacity(0.4);
expectedOpacity = 0.4;
scene.render(&painter);
painter.end();
QCOMPARE(scene.transformInDrawForeground, expectedTransform);
QCOMPARE(scene.transformInDrawBackground, expectedTransform);
QCOMPARE(scene.opacityInDrawBackground, expectedOpacity);
QCOMPARE(scene.opacityInDrawForeground, expectedOpacity);
}
class LodItem : public QGraphicsRectItem
{
public:
LodItem(const QRectF &rect) : QGraphicsRectItem(rect), lastLod(-42)
{ }
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *viewport) override
{
lastLod = option->levelOfDetailFromTransform(painter->worldTransform());
QGraphicsRectItem::paint(painter, option, viewport);
}
qreal lastLod;
};
void tst_QGraphicsView::levelOfDetail_data()
{
QTest::addColumn<QTransform>("transform");
QTest::addColumn<qreal>("lod");
QTest::newRow("1:4, 1:4") << QTransform().scale(0.25, 0.25) << qreal(0.25);
QTest::newRow("1:2, 1:4") << QTransform().scale(0.5, 0.25) << qreal(::sqrt(0.125));
QTest::newRow("4:1, 1:2") << QTransform().scale(0.25, 0.5) << qreal(::sqrt(0.125));
QTest::newRow("1:2, 1:2") << QTransform().scale(0.5, 0.5) << qreal(0.5);
QTest::newRow("1:1, 1:2") << QTransform().scale(1, 0.5) << qreal(::sqrt(0.5));
QTest::newRow("2:1, 1:1") << QTransform().scale(0.5, 1) << qreal(::sqrt(0.5));
QTest::newRow("1:1, 1:1") << QTransform().scale(1, 1) << qreal(1.0);
QTest::newRow("2:1, 1:1") << QTransform().scale(2, 1) << qreal(::sqrt(2.0));
QTest::newRow("1:1, 2:1") << QTransform().scale(2, 1) << qreal(::sqrt(2.0));
QTest::newRow("2:1, 2:1") << QTransform().scale(2, 2) << qreal(2.0);
QTest::newRow("2:1, 4:1") << QTransform().scale(2, 4) << qreal(::sqrt(8.0));
QTest::newRow("4:1, 2:1") << QTransform().scale(4, 2) << qreal(::sqrt(8.0));
QTest::newRow("4:1, 4:1") << QTransform().scale(4, 4) << qreal(4.0);
}
void tst_QGraphicsView::levelOfDetail()
{
QFETCH(QTransform, transform);
QFETCH(qreal, lod);
LodItem *item = new LodItem(QRectF(0, 0, 100, 100));
QGraphicsScene scene;
scene.addItem(item);
QGraphicsView view(&scene);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
QTRY_COMPARE(item->lastLod, qreal(1));
view.setTransform(transform);
QTRY_COMPARE(item->lastLod, lod);
}
// Moved to tst_qgraphicsview_2.cpp
extern void _scrollBarRanges_data();
void tst_QGraphicsView::scrollBarRanges_data()
{
_scrollBarRanges_data();
}
// Simulates motif scrollbar for range tests
class FauxMotifStyle : public QCommonStyle {
public:
int styleHint(StyleHint hint, const QStyleOption *option, const QWidget *widget, QStyleHintReturn *returnData) const override
{
if (hint == QStyle::SH_ScrollView_FrameOnlyAroundContents)
return true;
return QCommonStyle::styleHint(hint, option, widget, returnData);
}
int pixelMetric(PixelMetric m, const QStyleOption *opt, const QWidget *widget) const override
{
if (m == QStyle::PM_ScrollView_ScrollBarSpacing)
return 4;
return QCommonStyle::pixelMetric(m, opt, widget);
}
};
void tst_QGraphicsView::scrollBarRanges()
{
QFETCH(QByteArray, style);
QFETCH(QSize, viewportSize);
QFETCH(QRectF, sceneRect);
QFETCH(ScrollBarCount, sceneRectOffsetFactors);
QFETCH(QTransform, transform);
QFETCH(Qt::ScrollBarPolicy, hbarpolicy);
QFETCH(Qt::ScrollBarPolicy, vbarpolicy);
QFETCH(ExpectedValueDescription, hmin);
QFETCH(ExpectedValueDescription, hmax);
QFETCH(ExpectedValueDescription, vmin);
QFETCH(ExpectedValueDescription, vmax);
QFETCH(bool, useStyledPanel);
if (useStyledPanel && style == "macOS" && platformName == QStringLiteral("cocoa"))
QSKIP("Insignificant on OSX");
QScopedPointer<QStyle> stylePtr;
QGraphicsScene scene;
QGraphicsView view(&scene);
view.setRenderHint(QPainter::Antialiasing);
view.setTransform(transform);
view.setFrameStyle(useStyledPanel ? QFrame::StyledPanel : QFrame::NoFrame);
if (style == "motif")
stylePtr.reset(new FauxMotifStyle);
else
stylePtr.reset(QStyleFactory::create(QLatin1String(style)));
view.setStyle(stylePtr.data());
view.setStyleSheet(" "); // enables style propagation ;-)
int adjust = 0;
if (useStyledPanel)
adjust = view.style()->pixelMetric(QStyle::PM_DefaultFrameWidth) * 2;
view.resize(viewportSize + QSize(adjust, adjust));
view.setHorizontalScrollBarPolicy(hbarpolicy);
view.setVerticalScrollBarPolicy(vbarpolicy);
view.showNormal();
QVERIFY(QTest::qWaitForWindowExposed(&view));
const int offset = view.style()->pixelMetric(QStyle::PM_ScrollBarExtent, 0, 0);
QRectF actualSceneRect;
actualSceneRect.setLeft(sceneRect.left() + sceneRectOffsetFactors.left * offset);
actualSceneRect.setWidth(sceneRect.width() + sceneRectOffsetFactors.right * offset);
actualSceneRect.setTop(sceneRect.top() + sceneRectOffsetFactors.top * offset);
actualSceneRect.setHeight(sceneRect.height() + sceneRectOffsetFactors.bottom * offset);
scene.setSceneRect(actualSceneRect);
scene.addRect(actualSceneRect, QPen(Qt::blue), QBrush(QColor(Qt::green)));
int expectedHmin = hmin.value + hmin.scrollBarExtentsToAdd * offset;
int expectedVmin = vmin.value + vmin.scrollBarExtentsToAdd * offset;
int expectedHmax = hmax.value + hmax.scrollBarExtentsToAdd * offset;
int expectedVmax = vmax.value + vmax.scrollBarExtentsToAdd* offset;
if (useStyledPanel && view.style()->styleHint(QStyle::SH_ScrollView_FrameOnlyAroundContents)) {
int spacing = view.style()->pixelMetric(QStyle::PM_ScrollView_ScrollBarSpacing);
expectedHmin += hmin.spacingsToAdd * spacing;
expectedVmin += vmin.spacingsToAdd * spacing;
expectedHmax += hmax.spacingsToAdd * spacing;
expectedVmax += vmax.spacingsToAdd * spacing;
}
QCOMPARE(view.horizontalScrollBar()->minimum(), expectedHmin);
QCOMPARE(view.verticalScrollBar()->minimum(), expectedVmin);
QCOMPARE(view.horizontalScrollBar()->maximum(), expectedHmax);
QCOMPARE(view.verticalScrollBar()->maximum(), expectedVmax);
}
class TestView : public QGraphicsView
{
public:
TestView(QGraphicsScene *scene)
: QGraphicsView(scene), pressAccepted(false), doubleClickAccepted(false)
{ }
bool pressAccepted;
bool doubleClickAccepted;
protected:
void mousePressEvent(QMouseEvent *event) override
{
QGraphicsView::mousePressEvent(event);
pressAccepted = event->isAccepted();
}
void mouseDoubleClickEvent(QMouseEvent *event) override
{
QGraphicsView::mouseDoubleClickEvent(event);
doubleClickAccepted = event->isAccepted();
}
};
void tst_QGraphicsView::acceptMousePressEvent()
{
QGraphicsScene scene;
TestView view(&scene);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
QTest::mouseClick(view.viewport(), Qt::LeftButton);
QVERIFY(!view.pressAccepted);
QSignalSpy spy(&scene, &QGraphicsScene::changed);
scene.addRect(0, 0, 2000, 2000)->setFlag(QGraphicsItem::ItemIsMovable);
QVERIFY(spy.wait());
QTest::mouseClick(view.viewport(), Qt::LeftButton);
QVERIFY(view.pressAccepted);
}
void tst_QGraphicsView::acceptMouseDoubleClickEvent()
{
QGraphicsScene scene;
TestView view(&scene);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
QTest::mouseDClick(view.viewport(), Qt::LeftButton);
QVERIFY(!view.doubleClickAccepted);
QSignalSpy spy(&scene, &QGraphicsScene::changed);
scene.addRect(0, 0, 2000, 2000)->setFlag(QGraphicsItem::ItemIsMovable);
QVERIFY(spy.wait());
QTest::mouseDClick(view.viewport(), Qt::LeftButton);
QVERIFY(view.doubleClickAccepted);
}
class TestWidget : public QWidget
{
public:
TestWidget()
: QWidget(), pressForwarded(false), doubleClickForwarded(false)
{ }
bool pressForwarded;
bool doubleClickForwarded;
protected:
void mousePressEvent(QMouseEvent *event) override
{
QWidget::mousePressEvent(event);
pressForwarded = true;
}
void mouseDoubleClickEvent(QMouseEvent *event) override
{
QWidget::mouseDoubleClickEvent(event);
doubleClickForwarded = true;
}
};
void tst_QGraphicsView::forwardMousePress()
{
TestWidget widget;
QGraphicsScene scene;
QGraphicsView view(&scene);
QHBoxLayout layout;
widget.setLayout(&layout);
layout.addWidget(&view);
widget.show();
QVERIFY(QTest::qWaitForWindowExposed(&widget));
widget.pressForwarded = false;
QTest::mouseClick(view.viewport(), Qt::LeftButton);
QVERIFY(widget.pressForwarded);
scene.addRect(0, 0, 2000, 2000);
qApp->processEvents(); // ensure scene rect is updated
widget.pressForwarded = false;
QTest::mouseClick(view.viewport(), Qt::LeftButton);
QVERIFY(widget.pressForwarded);
}
void tst_QGraphicsView::forwardMouseDoubleClick()
{
TestWidget widget;
QGraphicsScene scene;
QGraphicsView view(&scene);
QHBoxLayout layout;
widget.setLayout(&layout);
layout.addWidget(&view);
widget.show();
QVERIFY(QTest::qWaitForWindowExposed(&widget));
widget.doubleClickForwarded = false;
QTest::mouseDClick(view.viewport(), Qt::LeftButton);
QVERIFY(widget.doubleClickForwarded);
scene.addRect(0, 0, 2000, 2000);
qApp->processEvents(); // ensure scene rect is updated
widget.doubleClickForwarded = false;
QTest::mouseDClick(view.viewport(), Qt::LeftButton);
QVERIFY(widget.doubleClickForwarded);
}
void tst_QGraphicsView::replayMouseMove()
{
// An empty scene in a view. The view will send the events to the scene in
// any case. Note that the view doesn't have to be shown - the mouse event
// sending functions below send the events directly to the viewport.
QGraphicsScene scene(-10000, -10000, 20000, 20000);
QGraphicsView view(&scene);
EventSpy sceneSpy(&scene, QEvent::GraphicsSceneMouseMove);
EventSpy viewSpy(view.viewport(), QEvent::MouseMove);
sendMousePress(view.viewport(), view.viewport()->rect().center());
// One mouse event should be translated into one scene event.
for (int i = 0; i < 3; ++i) {
sendMouseMove(view.viewport(), view.viewport()->rect().center(),
Qt::LeftButton, Qt::MouseButtons(Qt::LeftButton));
QCOMPARE(viewSpy.count(), i + 1);
QCOMPARE(sceneSpy.count(), i + 1);
}
// When the view is transformed, the view should get no more events. But
// the scene should get replays.
for (int i = 0; i < 3; ++i) {
view.rotate(10);
QCOMPARE(viewSpy.count(), 3);
QCOMPARE(sceneSpy.count(), 3 + i + 1);
}
// When the view is scrolled, the view should get no more events. But the
// scene should get replays.
for (int i = 0; i < 3; ++i) {
view.horizontalScrollBar()->setValue((i + 1) * 10);
QCOMPARE(viewSpy.count(), 3);
QCOMPARE(sceneSpy.count(), 6 + i + 1);
}
}
void tst_QGraphicsView::itemsUnderMouse()
{
QGraphicsScene scene;
QGraphicsProxyWidget w;
w.setWidget(new QPushButton("W"));
w.resize(50,50);
QGraphicsProxyWidget w2(&w);
w2.setWidget(new QPushButton("W2"));
w2.resize(50,50);
QGraphicsProxyWidget w3(&w2);
w3.setWidget(new QPushButton("W3"));
w3.resize(50,50);
w.setZValue(150);
w2.setZValue(50);
w3.setZValue(0);
scene.addItem(&w);
QGraphicsView view(&scene);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
QCOMPARE(view.items(view.mapFromScene(w3.boundingRect().center())).first(),
static_cast<QGraphicsItem *>(&w3));
w2.setFlag(QGraphicsItem::ItemIgnoresTransformations, true);
QCOMPARE(view.items(view.mapFromScene(w3.boundingRect().center())).first(),
static_cast<QGraphicsItem *>(&w3));
}
class QGraphicsTextItem_task172231 : public QGraphicsTextItem
{
public:
QGraphicsTextItem_task172231(const QString & text, QGraphicsItem * parent = nullptr)
: QGraphicsTextItem(text, parent) {}
QRectF exposedRect;
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override
{
exposedRect = option->exposedRect;
QGraphicsTextItem::paint(painter, option, widget);
}
};
void tst_QGraphicsView::task172231_untransformableItems()
{
// check fix in QGraphicsView::paintEvent()
QGraphicsScene scene;
QGraphicsTextItem_task172231 *text =
new QGraphicsTextItem_task172231("abcdefghijklmnopqrstuvwxyz");
text->setFlag(QGraphicsItem::ItemIgnoresTransformations);
scene.addItem(text);
QGraphicsView view(&scene);
view.scale(2, 1);
view.show();
QApplicationPrivate::setActiveWindow(&view);
QVERIFY(QTest::qWaitForWindowExposed(&view));
QVERIFY(QTest::qWaitForWindowActive(&view));
QCOMPARE(QApplication::activeWindow(), static_cast<QWidget *>(&view));
QRectF origExposedRect = text->exposedRect;
view.resize(int(0.75 * view.width()), view.height());
qApp->processEvents();
QCOMPARE(text->exposedRect, origExposedRect);
// notice that the fix also goes into QGraphicsView::render()
// and QGraphicsScene::render(), but in duplicated code that
// is pending a refactoring, so for now we omit autotesting
// these functions separately
}
class MousePressReleaseScene : public QGraphicsScene
{
public:
MousePressReleaseScene()
: presses(0), releases(0)
{ }
int presses;
int releases;
protected:
void mousePressEvent(QGraphicsSceneMouseEvent *event) override
{ ++presses; QGraphicsScene::mousePressEvent(event); }
void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override
{ ++releases; QGraphicsScene::mouseReleaseEvent(event); }
};
void tst_QGraphicsView::task180429_mouseReleaseDragMode()
{
MousePressReleaseScene scene;
QGraphicsView view(&scene);
view.show();
sendMousePress(view.viewport(), view.viewport()->rect().center());
QCOMPARE(scene.presses, 1);
QCOMPARE(scene.releases, 0);
sendMouseRelease(view.viewport(), view.viewport()->rect().center());
QCOMPARE(scene.presses, 1);
QCOMPARE(scene.releases, 1);
view.setDragMode(QGraphicsView::RubberBandDrag);
sendMousePress(view.viewport(), view.viewport()->rect().center());
QCOMPARE(scene.presses, 2);
QCOMPARE(scene.releases, 1);
sendMouseRelease(view.viewport(), view.viewport()->rect().center());
QCOMPARE(scene.presses, 2);
QCOMPARE(scene.releases, 2);
}
void tst_QGraphicsView::task187791_setSceneCausesUpdate()
{
QGraphicsScene scene(0, 0, 200, 200);
QGraphicsView view(&scene);
view.show();
QApplicationPrivate::setActiveWindow(&view);
QVERIFY(QTest::qWaitForWindowExposed(&view));
EventSpy updateSpy(view.viewport(), QEvent::Paint);
QCOMPARE(updateSpy.count(), 0);
view.setScene(0);
QApplication::processEvents();
QTRY_COMPARE(updateSpy.count(), 1);
view.setScene(&scene);
QApplication::processEvents();
QTRY_COMPARE(updateSpy.count(), 2);
}
class MouseMoveCounter : public QGraphicsView
{
public:
MouseMoveCounter() : mouseMoves(0)
{ }
int mouseMoves;
protected:
void mouseMoveEvent(QMouseEvent *event) override
{
++mouseMoves;
QGraphicsView::mouseMoveEvent(event);
foreach (QGraphicsItem *item, scene()->items()) {
scene()->removeItem(item);
delete item;
}
scene()->addRect(0, 0, 50, 50);
scene()->addRect(0, 0, 100, 100);
}
};
void tst_QGraphicsView::task186827_deleteReplayedItem()
{
// make sure the mouse is not over the window, causing spontaneous mouse moves
QCursor::setPos(1, 1);
QGraphicsScene scene;
scene.addRect(0, 0, 50, 50);
scene.addRect(0, 0, 100, 100);
MouseMoveCounter view;
view.setScene(&scene);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
view.viewport()->setMouseTracking(true);
QCOMPARE(view.mouseMoves, 0);
{
auto pos = view.mapFromScene(25, 25);
QMouseEvent event(QEvent::MouseMove, pos, view.viewport()->mapToGlobal(pos), Qt::NoButton, {}, {});
QApplication::sendEvent(view.viewport(), &event);
}
QCOMPARE(view.mouseMoves, 1);
QTest::qWait(25);
QTRY_COMPARE(view.mouseMoves, 1);
QTest::qWait(25);
{
auto pos = view.mapFromScene(25, 25);
QMouseEvent event(QEvent::MouseMove, pos, view.viewport()->mapToGlobal(pos), Qt::NoButton, {}, {});
QApplication::sendEvent(view.viewport(), &event);
}
QCOMPARE(view.mouseMoves, 2);
QTest::qWait(15);
}
void tst_QGraphicsView::task207546_focusCrash()
{
if (!QGuiApplicationPrivate::platformIntegration()->hasCapability(QPlatformIntegration::WindowActivation))
QSKIP("Window activation is not supported");
class _Widget : public QWidget
{
public:
bool focusNextPrevChild(bool next) override { return QWidget::focusNextPrevChild(next); }
} widget;
widget.setLayout(new QVBoxLayout());
QGraphicsView *gr1 = new QGraphicsView(&widget);
QGraphicsView *gr2 = new QGraphicsView(&widget);
widget.layout()->addWidget(gr1);
widget.layout()->addWidget(gr2);
widget.show();
widget.activateWindow();
QApplicationPrivate::setActiveWindow(&widget);
QVERIFY(QTest::qWaitForWindowActive(&widget));
QCOMPARE(QApplication::activeWindow(), static_cast<QWidget *>(&widget));
widget.focusNextPrevChild(true);
QCOMPARE(static_cast<QWidget *>(gr2), widget.focusWidget());
}
void tst_QGraphicsView::task210599_unsetDragWhileDragging()
{
QGraphicsScene scene(0, 0, 400, 400);
QGraphicsView view(&scene);
view.setGeometry(0, 0, 200, 200);
view.show();
QPoint origPos = QPoint(100, 100);
QPoint step1Pos = QPoint(100, 110);
QPoint step2Pos = QPoint(100, 120);
// Enable and do a drag
{
view.setDragMode(QGraphicsView::ScrollHandDrag);
QMouseEvent press(QEvent::MouseButtonPress, origPos,
view.viewport()->mapToGlobal(origPos), Qt::LeftButton, {}, {});
QMouseEvent move(QEvent::MouseMove, step1Pos,
view.viewport()->mapToGlobal(step1Pos), Qt::LeftButton, {}, {});
QApplication::sendEvent(view.viewport(), &press);
QApplication::sendEvent(view.viewport(), &move);
}
// unset drag and release mouse, inverse order
{
view.setDragMode(QGraphicsView::NoDrag);
QMouseEvent release(QEvent::MouseButtonRelease, step1Pos,
view.viewport()->mapToGlobal(step1Pos), Qt::LeftButton, {}, {});
QApplication::sendEvent(view.viewport(), &release);
}
QPoint basePos = view.mapFromScene(0, 0);
// reset drag, and move mouse without holding button down.
{
view.setDragMode(QGraphicsView::ScrollHandDrag);
QMouseEvent move(QEvent::MouseMove, step2Pos,
view.viewport()->mapToGlobal(step2Pos), Qt::LeftButton, {}, {});
QApplication::sendEvent(view.viewport(), &move);
}
// Check that no draggin has occurred...
QCOMPARE(basePos, view.mapFromScene(0, 0));
}
class ChangedListener : public QObject
{
Q_OBJECT
public:
QList<QList<QRectF> > changes;
public slots:
void changed(const QList<QRectF> &dirty)
{
changes << dirty;
}
};
void tst_QGraphicsView::task239729_noViewUpdate_data()
{
QTest::addColumn<bool>("a");
QTest::newRow("a") << false;
QTest::newRow("b") << true;
}
void tst_QGraphicsView::task239729_noViewUpdate()
{
QFETCH(bool, a);
// The scene's changed signal is connected to something that isn't a view.
QGraphicsScene scene;
ChangedListener cl;
QGraphicsView *view = nullptr;
if (a) {
view = new QGraphicsView(&scene);
connect(&scene, SIGNAL(changed(QList<QRectF>)), &cl, SLOT(changed(QList<QRectF>)));
} else {
connect(&scene, SIGNAL(changed(QList<QRectF>)), &cl, SLOT(changed(QList<QRectF>)));
view = new QGraphicsView(&scene);
}
EventSpy spy(view->viewport(), QEvent::Paint);
QCOMPARE(spy.count(), 0);
view->show();
QApplicationPrivate::setActiveWindow(view);
QVERIFY(QTest::qWaitForWindowActive(view));
QTRY_VERIFY(spy.count() >= 1);
spy.reset();
scene.update();
QApplication::processEvents();
QTRY_COMPARE(spy.count(), 1);
delete view;
}
void tst_QGraphicsView::task239047_fitInViewSmallViewport()
{
// Ensure that with a small viewport, fitInView doesn't mirror the
// scene.
QWidget widget;
setFrameless(&widget);
QGraphicsScene scene;
QGraphicsView *view = new QGraphicsView(&scene, &widget);
view->resize(3, 3);
QCOMPARE(view->size(), QSize(3, 3));
widget.show();
view->fitInView(0, 0, 100, 100);
QPointF topLeft = view->mapToScene(0, 0);
QPointF bottomRight = view->mapToScene(100, 100);
QVERIFY(bottomRight.x() > topLeft.x());
QVERIFY(bottomRight.y() > topLeft.y());
view->fitInView(0, 0, 0, 100);
// Don't crash
view->scale(0, 0);
view->fitInView(0, 0, 100, 100);
}
void tst_QGraphicsView::task245469_itemsAtPointWithClip()
{
QGraphicsScene scene;
QGraphicsItem *parent = scene.addRect(0, 0, 100, 100);
QGraphicsItem *child = new QGraphicsRectItem(40, 40, 20, 20, parent);
parent->setFlag(QGraphicsItem::ItemClipsChildrenToShape);
QGraphicsView view(&scene);
view.resize(150,150);
view.rotate(90);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
QList<QGraphicsItem *> itemsAtCenter = view.items(view.viewport()->rect().center());
QCOMPARE(itemsAtCenter, (QList<QGraphicsItem *>() << child << parent));
QPolygonF p = view.mapToScene(QRect(view.viewport()->rect().center(), QSize(1, 1)));
QList<QGraphicsItem *> itemsAtCenter2 = scene.items(p);
QCOMPARE(itemsAtCenter2, itemsAtCenter);
}
static QGraphicsView *createSimpleViewAndScene()
{
QGraphicsView *view = new QGraphicsView;
QGraphicsScene *scene = new QGraphicsScene(view);
view->setScene(scene);
view->setBackgroundBrush(Qt::blue);
QGraphicsRectItem *rect = scene->addRect(0, 0, 10, 10);
rect->setBrush(Qt::red);
rect->setPen(Qt::NoPen);
return view;
}
class SpyItem : public QGraphicsRectItem
{
public:
SpyItem()
: QGraphicsRectItem(QRectF(0, 0, 100, 100))
{
}
void paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *) override
{
transform = painter->transform();
}
QTransform transform;
};
void tst_QGraphicsView::embeddedViews()
{
QGraphicsView *v1 = createSimpleViewAndScene();
QGraphicsView *v2 = createSimpleViewAndScene();
QGraphicsProxyWidget *proxy = v1->scene()->addWidget(v2);
SpyItem *item = new SpyItem;
v2->scene()->addItem(item);
proxy->setTransform(QTransform::fromTranslate(5, 5), true);
QImage actual(64, 64, QImage::Format_ARGB32_Premultiplied);
actual.fill(0);
v1->QWidget::render(&actual);
QTransform a = item->transform;
v2->QWidget::render(&actual);
QTransform b = item->transform;
QCOMPARE(a, b);
delete v1;
}
/*!
Verify that a nested graphics view and embedded widgets receive window
activation and focus correctly.
See QTBUG-94091.
*/
void tst_QGraphicsView::embeddedViewsWithFocus()
{
class FocusWidget : public QWidget
{
public:
FocusWidget() { setFocusPolicy(Qt::StrongFocus); }
QSize sizeHint() const override { return QSize(100, 100); }
int focusCount = 0;
protected:
void mousePressEvent(QMouseEvent *) override {} // accept event to avoid warning
void focusInEvent(QFocusEvent *) override { ++focusCount; }
void focusOutEvent(QFocusEvent *) override { --focusCount; }
};
if (!QGuiApplicationPrivate::platformIntegration()->hasCapability(QPlatformIntegration::WindowActivation))
QSKIP("QWindow::requestActivate() is not supported.");
QGraphicsScene innerScene;
FocusWidget *innerWidget = new FocusWidget;
innerScene.addWidget(innerWidget);
QGraphicsView *innerView = new QGraphicsView(&innerScene);
QGraphicsScene outerScene;
FocusWidget *outerWidget = new FocusWidget;
QGraphicsProxyWidget *outerProxy = outerScene.addWidget(outerWidget);
QGraphicsProxyWidget *nestedProxy = outerScene.addWidget(innerView);
outerProxy->setPos(0, 0);
nestedProxy->setPos(0, outerWidget->sizeHint().height());
QGraphicsView outerView(&outerScene);
outerView.show();
outerView.activateWindow();
QVERIFY(QTest::qWaitForWindowActive(&outerView));
const QPoint outerCenter(QPoint(innerWidget->sizeHint().width() / 2,
innerWidget->sizeHint().height() / 2));
const QPoint innerCenter(outerCenter + QPoint(0, innerWidget->sizeHint().height()));
QCOMPARE(outerView.itemAt(outerCenter), outerProxy);
QCOMPARE(outerView.itemAt(innerCenter), nestedProxy);
QVERIFY(outerScene.isActive());
QVERIFY(innerScene.isActive());
QCOMPARE(outerWidget->focusCount, 0);
QCOMPARE(innerWidget->focusCount, 0);
QTest::mouseClick(outerView.viewport(), Qt::LeftButton, {}, outerCenter);
QCOMPARE(outerWidget->focusCount, 1);
QCOMPARE(innerWidget->focusCount, 0);
QTest::mouseClick(outerView.viewport(), Qt::LeftButton, {}, innerCenter);
QCOMPARE(outerWidget->focusCount, 0);
QCOMPARE(innerWidget->focusCount, 1);
}
void tst_QGraphicsView::scrollAfterResize_data()
{
QTest::addColumn<bool>("reverse");
QTest::addColumn<QTransform>("x1");
QTest::addColumn<QTransform>("x2");
QTest::addColumn<QTransform>("x3");
QStyle *style = QStyleFactory::create("windows");
int frameWidth = style->pixelMetric(QStyle::PM_DefaultFrameWidth);
int extent = style->pixelMetric(QStyle::PM_ScrollBarExtent);
int inside = style->styleHint(QStyle::SH_ScrollView_FrameOnlyAroundContents);
int viewportWidth = 300;
int scrollBarIndent = viewportWidth - extent - (inside ? 4 : 2)*frameWidth;
QTest::newRow("normal") << false
<< QTransform()
<< QTransform()
<< QTransform().translate(-10, 0);
QTest::newRow("reverse") << true
<< QTransform().translate(scrollBarIndent, 0)
<< QTransform().translate(scrollBarIndent + 100, 0)
<< QTransform().translate(scrollBarIndent + 110, 0);
delete style;
}
void tst_QGraphicsView::scrollAfterResize()
{
QFETCH(bool, reverse);
QFETCH(QTransform, x1);
QFETCH(QTransform, x2);
QFETCH(QTransform, x3);
QStyle *style = QStyleFactory::create("windows");
QWidget toplevel;
QGraphicsView view(&toplevel);
view.setStyle(style);
if (reverse)
view.setLayoutDirection(Qt::RightToLeft);
view.setSceneRect(-1000, -1000, 2000, 2000);
view.resize(300, 300);
toplevel.show();
QVERIFY(QTest::qWaitForWindowExposed(&toplevel));
view.horizontalScrollBar()->setValue(0);
view.verticalScrollBar()->setValue(0);
QCOMPARE(view.viewportTransform(), x1);
view.resize(400, 300);
QCOMPARE(view.viewportTransform(), x2);
view.horizontalScrollBar()->setValue(10);
QCOMPARE(view.viewportTransform(), x3);
delete style;
}
void tst_QGraphicsView::moveItemWhileScrolling_data()
{
QTest::addColumn<bool>("adjustForAntialiasing");
QTest::addColumn<bool>("changedConnected");
QTest::newRow("no adjust") << false << false;
QTest::newRow("adjust") << true << false;
QTest::newRow("no adjust changedConnected") << false << true;
QTest::newRow("adjust changedConnected") << true << true;
}
void tst_QGraphicsView::moveItemWhileScrolling()
{
QFETCH(bool, adjustForAntialiasing);
QFETCH(bool, changedConnected);
class MoveItemScrollView : public QGraphicsView
{
public:
MoveItemScrollView()
{
setWindowFlags(Qt::X11BypassWindowManagerHint);
setScene(new QGraphicsScene(0, 0, 1000, 1000, this));
rect = scene()->addRect(0, 0, 10, 10);
rect->setPos(50, 50);
rect->setPen(QPen(Qt::black, 0));
painted = false;
}
QRegion lastPaintedRegion;
QGraphicsRectItem *rect;
bool painted;
void waitForPaintEvent()
{
QTimer::singleShot(2000, &eventLoop, SLOT(quit()));
eventLoop.exec();
}
protected:
QEventLoop eventLoop;
void paintEvent(QPaintEvent *event) override
{
painted = true;
lastPaintedRegion = event->region();
QGraphicsView::paintEvent(event);
if (eventLoop.isRunning())
eventLoop.quit();
}
};
MoveItemScrollView view;
view.setFrameStyle(0);
view.setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
view.setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
view.setResizeAnchor(QGraphicsView::NoAnchor);
view.setTransformationAnchor(QGraphicsView::NoAnchor);
if (!adjustForAntialiasing)
view.setOptimizationFlag(QGraphicsView::DontAdjustForAntialiasing);
view.resize(200, 200);
view.painted = false;
view.showNormal();
if (changedConnected)
QObject::connect(view.scene(), SIGNAL(changed(QList<QRectF>)), this, SLOT(dummySlot()));
QVERIFY(QTest::qWaitForWindowExposed(&view));
QApplication::processEvents();
QTRY_VERIFY(view.painted);
view.painted = false;
view.lastPaintedRegion = QRegion();
view.horizontalScrollBar()->setValue(view.horizontalScrollBar()->value() + 10);
view.rect->moveBy(0, 10);
view.waitForPaintEvent();
QTRY_VERIFY(view.painted);
QRegion expectedRegion;
expectedRegion += QRect(0, 0, 200, 200);
expectedRegion -= QRect(0, 0, 190, 200);
int a = adjustForAntialiasing ? 2 : 1;
expectedRegion += QRect(40, 50, 10, 10).adjusted(-a, -a, a, a);
expectedRegion += QRect(40, 60, 10, 10).adjusted(-a, -a, a, a);
if (QGuiApplication::platformName().startsWith(QLatin1String("wayland"), Qt::CaseInsensitive))
QSKIP("Wayland: This fails. Figure out why.");
COMPARE_REGIONS(view.lastPaintedRegion, expectedRegion);
}
void tst_QGraphicsView::centerOnDirtyItem()
{
QWidget toplevel;
QGraphicsView view(&toplevel);
toplevel.setWindowFlags(view.windowFlags() | Qt::WindowStaysOnTopHint);
view.resize(200, 200);
QGraphicsScene *scene = new QGraphicsScene(&view);
view.setScene(scene);
view.setSceneRect(-1000, -1000, 2000, 2000);
QGraphicsRectItem *item = new QGraphicsRectItem(0, 0, 10, 10);
item->setBrush(Qt::red);
scene->addItem(item);
view.centerOn(item);
toplevel.show();
QVERIFY(QTest::qWaitForWindowExposed(&toplevel));
QImage before(view.viewport()->size(), QImage::Format_ARGB32);
view.viewport()->render(&before);
item->setPos(20, 0);
view.centerOn(item);
QImage after(view.viewport()->size(), QImage::Format_ARGB32);
view.viewport()->render(&after);
QCOMPARE(before, after);
}
void tst_QGraphicsView::mouseTracking()
{
// Mouse tracking should only be automatically enabled if items either accept hover events
// or have a cursor set. We never disable mouse tracking if it is already enabled.
{ // Make sure mouse tracking is disabled by default.
QGraphicsScene scene(-10000, -10000, 20000, 20000);
QGraphicsView view(&scene);
QVERIFY(!view.viewport()->hasMouseTracking());
}
{ // Make sure we don't disable mouse tracking in setupViewport/setScene.
QGraphicsView view;
QWidget *viewport = new QWidget;
viewport->setMouseTracking(true);
view.setViewport(viewport);
QVERIFY(viewport->hasMouseTracking());
QGraphicsScene scene(-10000, -10000, 20000, 20000);
view.setScene(&scene);
QVERIFY(viewport->hasMouseTracking());
}
// Make sure we enable mouse tracking when having items that accept hover events.
{
// Adding an item to the scene after the scene is set on the view.
QGraphicsScene scene(-10000, -10000, 20000, 20000);
QGraphicsView view(&scene);
QGraphicsRectItem *item = new QGraphicsRectItem(10, 10, 10, 10);
item->setAcceptHoverEvents(true);
scene.addItem(item);
QVERIFY(view.viewport()->hasMouseTracking());
}
{
// Adding an item to the scene before the scene is set on the view.
QGraphicsScene scene(-10000, -10000, 20000, 20000);
QGraphicsRectItem *item = new QGraphicsRectItem(10, 10, 10, 10);
item->setAcceptHoverEvents(true);
scene.addItem(item);
QGraphicsView view(&scene);
QVERIFY(view.viewport()->hasMouseTracking());
}
{
// QGraphicsWidget implicitly accepts hover if it has window decoration.
QGraphicsScene scene(-10000, -10000, 20000, 20000);
QGraphicsView view(&scene);
QGraphicsWidget *widget = new QGraphicsWidget;
scene.addItem(widget);
QVERIFY(!view.viewport()->hasMouseTracking());
// Enable window decoraton.
widget->setWindowFlags(Qt::Window | Qt::WindowTitleHint);
QVERIFY(view.viewport()->hasMouseTracking());
}
// Make sure we enable mouse tracking when having items with a cursor set.
{
// Adding an item to the scene after the scene is set on the view.
QGraphicsScene scene(-10000, -10000, 20000, 20000);
QGraphicsView view(&scene);
QGraphicsRectItem *item = new QGraphicsRectItem(10, 10, 10, 10);
#ifndef QT_NO_CURSOR
item->setCursor(Qt::CrossCursor);
#endif
scene.addItem(item);
QVERIFY(view.viewport()->hasMouseTracking());
}
{
// Adding an item to the scene before the scene is set on the view.
QGraphicsScene scene(-10000, -10000, 20000, 20000);
QGraphicsRectItem *item = new QGraphicsRectItem(10, 10, 10, 10);
#ifndef QT_NO_CURSOR
item->setCursor(Qt::CrossCursor);
#endif
scene.addItem(item);
QGraphicsView view(&scene);
QVERIFY(view.viewport()->hasMouseTracking());
}
// Make sure we propagate mouse tracking to all views.
{
QGraphicsScene scene(-10000, -10000, 20000, 20000);
QGraphicsView view1(&scene);
QGraphicsView view2(&scene);
QGraphicsView view3(&scene);
QGraphicsRectItem *item = new QGraphicsRectItem(10, 10, 10, 10);
#ifndef QT_NO_CURSOR
item->setCursor(Qt::CrossCursor);
#endif
scene.addItem(item);
QVERIFY(view1.viewport()->hasMouseTracking());
QVERIFY(view2.viewport()->hasMouseTracking());
QVERIFY(view3.viewport()->hasMouseTracking());
}
}
void tst_QGraphicsView::mouseTracking2()
{
// Make sure mouse move events propagates to the scene when
// mouse tracking is explicitly enabled on the view,
// even when all items ignore hover events / use default cursor.
QGraphicsScene scene;
scene.addRect(0, 0, 100, 100);
QGraphicsView view(&scene);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
QVERIFY(!view.viewport()->hasMouseTracking());
view.viewport()->setMouseTracking(true); // Explicitly enable mouse tracking.
QVERIFY(view.viewport()->hasMouseTracking());
EventSpy spy(&scene, QEvent::GraphicsSceneMouseMove);
QCOMPARE(spy.count(), 0);
auto pos = view.viewport()->rect().center();
QMouseEvent event(QEvent::MouseMove, pos, view.viewport()->mapToGlobal(pos),
Qt::NoButton, Qt::MouseButtons(Qt::NoButton), {});
QApplication::sendEvent(view.viewport(), &event);
QCOMPARE(spy.count(), 1);
}
void tst_QGraphicsView::mouseTracking3()
{
// Mouse tracking should be automatically enabled if AnchorUnderMouse is used for
// view transform or resize. We never disable mouse tracking if it is already enabled.
{ // Make sure we enable mouse tracking when using AnchorUnderMouse for view transformation.
QGraphicsScene scene(-10000, -10000, 20000, 20000);
QGraphicsView view(&scene);
QVERIFY(!view.viewport()->hasMouseTracking());
view.setTransformationAnchor(QGraphicsView::AnchorUnderMouse);
QVERIFY(view.viewport()->hasMouseTracking());
}
{ // Make sure we enable mouse tracking when using AnchorUnderMouse for view resizing.
QGraphicsScene scene(-10000, -10000, 20000, 20000);
QGraphicsView view(&scene);
QVERIFY(!view.viewport()->hasMouseTracking());
view.setResizeAnchor(QGraphicsView::AnchorUnderMouse);
QVERIFY(view.viewport()->hasMouseTracking());
}
{ // Make sure we don't disable mouse tracking in setViewport/setScene (transformation anchor).
QGraphicsView view;
view.setTransformationAnchor(QGraphicsView::AnchorUnderMouse);
QVERIFY(view.viewport()->hasMouseTracking());
QWidget *viewport = new QWidget;
view.setViewport(viewport);
QVERIFY(viewport->hasMouseTracking());
QGraphicsScene scene(-10000, -10000, 20000, 20000);
view.setScene(&scene);
QVERIFY(viewport->hasMouseTracking());
}
{ // Make sure we don't disable mouse tracking in setViewport/setScene (resize anchor).
QGraphicsView view;
view.setResizeAnchor(QGraphicsView::AnchorUnderMouse);
QVERIFY(view.viewport()->hasMouseTracking());
QWidget *viewport = new QWidget;
view.setViewport(viewport);
QVERIFY(viewport->hasMouseTracking());
QGraphicsScene scene(-10000, -10000, 20000, 20000);
view.setScene(&scene);
QVERIFY(viewport->hasMouseTracking());
}
// Make sure we don't disable mouse tracking when adding an item (transformation anchor).
{ // Adding an item to the scene before the scene is set on the view.
QGraphicsScene scene(-10000, -10000, 20000, 20000);
QGraphicsRectItem *item = new QGraphicsRectItem(10, 10, 10, 10);
scene.addItem(item);
QGraphicsView view;
view.setTransformationAnchor(QGraphicsView::AnchorUnderMouse);
view.setScene(&scene);
QVERIFY(view.viewport()->hasMouseTracking());
}
{ // Adding an item to the scene after the scene is set on the view.
QGraphicsScene scene(-10000, -10000, 20000, 20000);
QGraphicsView view(&scene);
view.setTransformationAnchor(QGraphicsView::AnchorUnderMouse);
QGraphicsRectItem *item = new QGraphicsRectItem(10, 10, 10, 10);
scene.addItem(item);
QVERIFY(view.viewport()->hasMouseTracking());
}
// Make sure we don't disable mouse tracking when adding an item (resize anchor).
{ // Adding an item to the scene before the scene is set on the view.
QGraphicsScene scene(-10000, -10000, 20000, 20000);
QGraphicsRectItem *item = new QGraphicsRectItem(10, 10, 10, 10);
scene.addItem(item);
QGraphicsView view;
view.setResizeAnchor(QGraphicsView::AnchorUnderMouse);
view.setScene(&scene);
QVERIFY(view.viewport()->hasMouseTracking());
}
{ // Adding an item to the scene after the scene is set on the view.
QGraphicsScene scene(-10000, -10000, 20000, 20000);
QGraphicsView view(&scene);
view.setResizeAnchor(QGraphicsView::AnchorUnderMouse);
QGraphicsRectItem *item = new QGraphicsRectItem(10, 10, 10, 10);
scene.addItem(item);
QVERIFY(view.viewport()->hasMouseTracking());
}
}
class RenderTester : public QGraphicsRectItem
{
public:
RenderTester(const QRectF &rect)
: QGraphicsRectItem(rect), paints(0)
{ }
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override
{
QGraphicsRectItem::paint(painter, option, widget);
++paints;
}
int paints;
};
void tst_QGraphicsView::render()
{
// ### This test can be much more thorough - see QGraphicsScene::render.
QGraphicsScene scene;
CustomView view(&scene);
view.setFrameStyle(0);
view.resize(200, 200);
view.painted = false;
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
QApplication::processEvents();
QTRY_VERIFY(view.painted);
RenderTester *r1 = new RenderTester(QRectF(0, 0, 50, 50));
RenderTester *r2 = new RenderTester(QRectF(50, 50, 50, 50));
RenderTester *r3 = new RenderTester(QRectF(0, 50, 50, 50));
RenderTester *r4 = new RenderTester(QRectF(50, 0, 50, 50));
scene.addItem(r1);
scene.addItem(r2);
scene.addItem(r3);
scene.addItem(r4);
qApp->processEvents();
QTRY_COMPARE(r1->paints, 1);
QCOMPARE(r2->paints, 1);
QCOMPARE(r3->paints, 1);
QCOMPARE(r4->paints, 1);
QPixmap pix(200, 200);
pix.fill(Qt::transparent);
QPainter painter(&pix);
view.render(&painter);
painter.end();
QCOMPARE(r1->paints, 2);
QCOMPARE(r2->paints, 2);
QCOMPARE(r3->paints, 2);
QCOMPARE(r4->paints, 2);
}
void tst_QGraphicsView::exposeRegion()
{
RenderTester *item = new RenderTester(QRectF(0, 0, 20, 20));
QGraphicsScene scene;
scene.addItem(item);
item->paints = 0;
CustomView view;
view.setScene(&scene);
view.show();
QApplicationPrivate::setActiveWindow(&view);
QVERIFY(QTest::qWaitForWindowExposed(&view));
QVERIFY(QTest::qWaitForWindowActive(&view));
QTRY_VERIFY(item->paints > 0);
item->paints = 0;
view.lastUpdateRegions.clear();
// Update a small area in the viewport's topLeft() and bottomRight().
// (the boundingRect() of this area covers the entire viewport).
QWidget *viewport = view.viewport();
QRegion expectedExposeRegion = QRect(0, 0, 5, 5);
expectedExposeRegion += QRect(viewport->rect().bottomRight() - QPoint(5, 5), QSize(5, 5));
viewport->update(expectedExposeRegion);
QApplication::processEvents();
// Make sure it triggers correct repaint on the view.
QTRY_COMPARE(view.lastUpdateRegions.size(), 1);
COMPARE_REGIONS(view.lastUpdateRegions.at(0), expectedExposeRegion);
// Make sure the item didn't get any repaints.
#ifndef Q_OS_MAC
QCOMPARE(item->paints, 0);
#endif
}
void tst_QGraphicsView::update_data()
{
// In view.viewport() coordinates. (viewport rect: QRect(0, 0, 200, 200))
QTest::addColumn<QRect>("updateRect");
QTest::newRow("empty") << QRect();
QTest::newRow("outside left") << QRect(-200, 0, 100, 100);
QTest::newRow("outside right") << QRect(400, 0 ,100, 100);
QTest::newRow("outside top") << QRect(0, -200, 100, 100);
QTest::newRow("outside bottom") << QRect(0, 400, 100, 100);
QTest::newRow("partially inside left") << QRect(-50, 0, 100, 100);
QTest::newRow("partially inside right") << QRect(-150, 0, 100, 100);
QTest::newRow("partially inside top") << QRect(0, -150, 100, 100);
QTest::newRow("partially inside bottom") << QRect(0, 150, 100, 100);
QTest::newRow("on topLeft edge") << QRect(-100, -100, 100, 100);
QTest::newRow("on topRight edge") << QRect(200, -100, 100, 100);
QTest::newRow("on bottomRight edge") << QRect(200, 200, 100, 100);
QTest::newRow("on bottomLeft edge") << QRect(-200, 200, 100, 100);
QTest::newRow("inside topLeft") << QRect(-99, -99, 100, 100);
QTest::newRow("inside topRight") << QRect(199, -99, 100, 100);
QTest::newRow("inside bottomRight") << QRect(199, 199, 100, 100);
QTest::newRow("inside bottomLeft") << QRect(-199, 199, 100, 100);
QTest::newRow("large1") << QRect(50, -100, 100, 400);
QTest::newRow("large2") << QRect(-100, 50, 400, 100);
QTest::newRow("large3") << QRect(-100, -100, 400, 400);
QTest::newRow("viewport rect") << QRect(0, 0, 200, 200);
}
void tst_QGraphicsView::update()
{
QFETCH(QRect, updateRect);
// some window manager resize the toplevel to max screen size
// so we must make our view a child (no layout!) of a dummy toplevel
// to ensure that it's really 200x200 pixels
QWidget toplevel;
// Create a view with viewport rect equal to QRect(0, 0, 200, 200).
QGraphicsScene dummyScene;
CustomView view(0, &toplevel);
view.setScene(&dummyScene);
view.ensurePolished(); // must ensure polished to get content margins right
const QMargins margins = view.contentsMargins();
view.resize(200 + margins.left() + margins.right(), 200 + margins.top() + margins.bottom());
toplevel.show();
QVERIFY(QTest::qWaitForWindowExposed(&toplevel));
QApplicationPrivate::setActiveWindow(&toplevel);
QApplication::processEvents();
QTRY_COMPARE(QApplication::activeWindow(), static_cast<QWidget *>(&toplevel));
const QRect viewportRect = view.viewport()->rect();
QCOMPARE(viewportRect, QRect(0, 0, 200, 200));
#if defined QT_BUILD_INTERNAL
const bool intersects = updateRect.intersects(viewportRect);
QGraphicsViewPrivate *viewPrivate = static_cast<QGraphicsViewPrivate *>(qt_widget_private(&view));
QTRY_COMPARE(viewPrivate->updateRect(updateRect), intersects);
QApplication::processEvents();
view.lastUpdateRegions.clear();
viewPrivate->processPendingUpdates();
QVERIFY(viewPrivate->dirtyRegion.isEmpty());
QVERIFY(viewPrivate->dirtyBoundingRect.isEmpty());
QApplication::processEvents();
if (!intersects) {
QTRY_VERIFY(view.lastUpdateRegions.isEmpty());
} else {
QTRY_COMPARE(view.lastUpdateRegions.size(), 1);
QTRY_COMPARE(view.lastUpdateRegions.at(0), QRegion(updateRect) & viewportRect);
}
QTRY_VERIFY(!viewPrivate->fullUpdatePending);
#else
Q_UNUSED(updateRect);
#endif
}
void tst_QGraphicsView::update2_data()
{
QTest::addColumn<qreal>("penWidth");
QTest::addColumn<bool>("antialiasing");
QTest::addColumn<bool>("changedConnected");
// Anti-aliased.
QTest::newRow("pen width: 0.0, antialiasing: true") << qreal(0.0) << true << false;
QTest::newRow("pen width: 1.5, antialiasing: true") << qreal(1.5) << true << false;
QTest::newRow("pen width: 2.0, antialiasing: true") << qreal(2.0) << true << false;
QTest::newRow("pen width: 3.0, antialiasing: true") << qreal(3.0) << true << false;
// Aliased.
QTest::newRow("pen width: 0.0, antialiasing: false") << qreal(0.0) << false << false;
QTest::newRow("pen width: 1.5, antialiasing: false") << qreal(1.5) << false << false;
QTest::newRow("pen width: 2.0, antialiasing: false") << qreal(2.0) << false << false;
QTest::newRow("pen width: 3.0, antialiasing: false") << qreal(3.0) << false << false;
// changed() connected
QTest::newRow("pen width: 0.0, antialiasing: false, changed") << qreal(0.0) << false << true;
QTest::newRow("pen width: 1.5, antialiasing: true, changed") << qreal(1.5) << true << true;
QTest::newRow("pen width: 2.0, antialiasing: false, changed") << qreal(2.0) << false << true;
QTest::newRow("pen width: 3.0, antialiasing: true, changed") << qreal(3.0) << true << true;
}
void tst_QGraphicsView::update2()
{
QFETCH(qreal, penWidth);
QFETCH(bool, antialiasing);
QFETCH(bool, changedConnected);
// Create a rect item.
const QRectF rawItemRect(-50.4, -50.3, 100.2, 100.1);
CountPaintItem *rect = new CountPaintItem(rawItemRect);
QPen pen;
pen.setWidthF(penWidth);
rect->setPen(pen);
// Add item to a scene.
QGraphicsScene scene(-100, -100, 200, 200);
if (changedConnected)
QObject::connect(&scene, SIGNAL(changed(QList<QRectF>)), this, SLOT(dummySlot()));
scene.addItem(rect);
// Create a view on the scene.
CustomView view(&scene);
view.setOptimizationFlag(QGraphicsView::DontAdjustForAntialiasing, !antialiasing);
view.setRenderHint(QPainter::Antialiasing, antialiasing);
view.setFrameStyle(0);
view.resize(200, 200);
view.show();
QApplicationPrivate::setActiveWindow(&view);
QVERIFY(QTest::qWaitForWindowExposed(&view));
QVERIFY(QTest::qWaitForWindowActive(&view));
QTRY_VERIFY(rect->numPaints > 0);
// Calculate expected update region for the rect.
QRectF expectedItemBoundingRect = rawItemRect;
const qreal halfPenWidth = penWidth / qreal(2.0);
expectedItemBoundingRect.adjust(-halfPenWidth, -halfPenWidth, halfPenWidth, halfPenWidth);
QCOMPARE(rect->boundingRect(), expectedItemBoundingRect);
QRect expectedItemDeviceBoundingRect = rect->deviceTransform(view.viewportTransform())
.mapRect(expectedItemBoundingRect).toAlignedRect();
if (antialiasing)
expectedItemDeviceBoundingRect.adjust(-2, -2, 2, 2);
else
expectedItemDeviceBoundingRect.adjust(-1, -1, 1, 1);
const QRegion expectedUpdateRegion(expectedItemDeviceBoundingRect);
// Reset.
rect->numPaints = 0;
view.lastUpdateRegions.clear();
view.painted = false;
rect->update();
QTRY_VERIFY(view.painted);
#ifndef Q_OS_MAC //cocoa doesn't support drawing regions
QTRY_VERIFY(view.painted);
QCOMPARE(view.lastUpdateRegions.size(), 1);
QCOMPARE(view.lastUpdateRegions.at(0), expectedUpdateRegion);
#endif
}
void tst_QGraphicsView::update_ancestorClipsChildrenToShape()
{
QGraphicsScene scene(-150, -150, 300, 300);
/*
Add three rects:
+------------------+
| child |
| +--------------+ |
| | parent | |
| | +-----------+ |
| | |grandParent| |
| | +-----------+ |
| +--------------+ |
+------------------+
... where both the parent and the grand parent clips children to shape.
*/
QApplication::processEvents(); // Get rid of pending update.
QGraphicsRectItem *grandParent = static_cast<QGraphicsRectItem *>(scene.addRect(0, 0, 50, 50));
grandParent->setBrush(Qt::black);
grandParent->setFlag(QGraphicsItem::ItemClipsChildrenToShape);
QGraphicsRectItem *parent = static_cast<QGraphicsRectItem *>(scene.addRect(-50, -50, 100, 100));
parent->setBrush(QColor(0, 0, 255, 125));
parent->setParentItem(grandParent);
parent->setFlag(QGraphicsItem::ItemClipsChildrenToShape);
QGraphicsRectItem *child = static_cast<QGraphicsRectItem *>(scene.addRect(-100, -100, 200, 200));
child->setBrush(QColor(255, 0, 0, 125));
child->setParentItem(parent);
CustomView view(&scene);
view.show();
QApplicationPrivate::setActiveWindow(&view);
QVERIFY(QTest::qWaitForWindowExposed(&view));
QVERIFY(QTest::qWaitForWindowActive(&view));
QTRY_VERIFY(view.painted);
view.lastUpdateRegions.clear();
view.painted = false;
// Call child->update() and make sure the updated area is within the ancestors' clip.
QRectF expected = child->deviceTransform(view.viewportTransform()).mapRect(child->boundingRect());
expected &= grandParent->deviceTransform(view.viewportTransform()).mapRect(grandParent->boundingRect());
child->update();
QTRY_VERIFY(view.painted);
#ifndef Q_OS_MAC //cocoa doesn't support drawing regions
QTRY_VERIFY(view.painted);
QCOMPARE(view.lastUpdateRegions.size(), 1);
QCOMPARE(view.lastUpdateRegions.at(0), QRegion(expected.toAlignedRect()));
#endif
}
void tst_QGraphicsView::update_ancestorClipsChildrenToShape2()
{
QGraphicsScene scene(-150, -150, 300, 300);
/*
Add two rects:
+------------------+
| child |
| +--------------+ |
| | parent | |
| | | |
| | | |
| | | |
| +--------------+ |
+------------------+
... where the parent has no contents and clips the child to shape.
*/
QApplication::processEvents(); // Get rid of pending update.
QGraphicsRectItem *parent = static_cast<QGraphicsRectItem *>(scene.addRect(-50, -50, 100, 100));
parent->setBrush(QColor(0, 0, 255, 125));
parent->setFlag(QGraphicsItem::ItemClipsChildrenToShape);
parent->setFlag(QGraphicsItem::ItemHasNoContents);
QGraphicsRectItem *child = static_cast<QGraphicsRectItem *>(scene.addRect(-100, -100, 200, 200));
child->setBrush(QColor(255, 0, 0, 125));
child->setParentItem(parent);
CustomView view(&scene);
view.show();
QApplicationPrivate::setActiveWindow(&view);
QVERIFY(QTest::qWaitForWindowExposed(&view));
QVERIFY(QTest::qWaitForWindowActive(&view));
QTRY_VERIFY(view.painted);
view.lastUpdateRegions.clear();
view.painted = false;
// Call child->update() and make sure the updated area is within its parent's clip.
QRectF expected = child->deviceTransform(view.viewportTransform()).mapRect(child->boundingRect());
expected &= parent->deviceTransform(view.viewportTransform()).mapRect(parent->boundingRect());
child->update();
QTRY_VERIFY(view.painted);
#ifndef Q_OS_MAC //cocoa doesn't support drawing regions
QTRY_VERIFY(view.painted);
QCOMPARE(view.lastUpdateRegions.size(), 1);
QCOMPARE(view.lastUpdateRegions.at(0), QRegion(expected.toAlignedRect()));
#endif
view.lastUpdateRegions.clear();
view.painted = false;
// Invalidate the parent's geometry and trigger an update.
// The update area should be clipped to the parent's bounding rect for 'normal' items,
// but in this case the item has no contents (ItemHasNoContents) and its geometry
// is invalidated, which means we cannot clip the child update. So, the expected
// area is exactly the same as the child's bounding rect (adjusted for antialiasing).
parent->setRect(parent->rect().adjusted(-10, -10, -10, -10));
expected = child->deviceTransform(view.viewportTransform()).mapRect(child->boundingRect());
expected.adjust(-2, -2, 2, 2); // Antialiasing
#ifndef Q_OS_MAC //cocoa doesn't support drawing regions
QTRY_VERIFY(view.painted);
QCOMPARE(view.lastUpdateRegions.size(), 1);
QCOMPARE(view.lastUpdateRegions.at(0), QRegion(expected.toAlignedRect()));
#endif
}
class FocusItem : public QGraphicsRectItem
{
public:
FocusItem() : QGraphicsRectItem(0, 0, 20, 20) {
m_viewHasIMEnabledInFocusInEvent = false;
}
void focusInEvent(QFocusEvent * /* event */) override
{
QGraphicsView *view = scene()->views().first();
m_viewHasIMEnabledInFocusInEvent = view->testAttribute(Qt::WA_InputMethodEnabled);
}
bool m_viewHasIMEnabledInFocusInEvent;
};
void tst_QGraphicsView::inputMethodSensitivity()
{
QGraphicsScene scene;
QGraphicsView view(&scene);
view.show();
QApplicationPrivate::setActiveWindow(&view);
QVERIFY(QTest::qWaitForWindowExposed(&view));
QVERIFY(QTest::qWaitForWindowActive(&view));
QCOMPARE(QApplication::activeWindow(), static_cast<QWidget *>(&view));
FocusItem *item = new FocusItem;
view.setAttribute(Qt::WA_InputMethodEnabled, true);
scene.addItem(item);
QCOMPARE(view.testAttribute(Qt::WA_InputMethodEnabled), false);
scene.removeItem(item);
QCOMPARE(view.testAttribute(Qt::WA_InputMethodEnabled), false);
item->setFlag(QGraphicsItem::ItemAcceptsInputMethod);
scene.addItem(item);
QCOMPARE(view.testAttribute(Qt::WA_InputMethodEnabled), false);
scene.removeItem(item);
QCOMPARE(view.testAttribute(Qt::WA_InputMethodEnabled), false);
scene.addItem(item);
scene.setFocusItem(item);
QCOMPARE(view.testAttribute(Qt::WA_InputMethodEnabled), false);
scene.removeItem(item);
QCOMPARE(view.testAttribute(Qt::WA_InputMethodEnabled), false);
item->setFlag(QGraphicsItem::ItemIsFocusable);
scene.addItem(item);
scene.setFocusItem(item);
QCOMPARE(scene.focusItem(), static_cast<QGraphicsItem *>(item));
QCOMPARE(view.testAttribute(Qt::WA_InputMethodEnabled), true);
QCOMPARE(item->m_viewHasIMEnabledInFocusInEvent, true);
item->setFlag(QGraphicsItem::ItemAcceptsInputMethod, false);
QCOMPARE(view.testAttribute(Qt::WA_InputMethodEnabled), false);
item->setFlag(QGraphicsItem::ItemAcceptsInputMethod, true);
QCOMPARE(view.testAttribute(Qt::WA_InputMethodEnabled), true);
// introduce another item that is focusable but does not accept input methods
FocusItem *item2 = new FocusItem;
item2->setFlag(QGraphicsItem::ItemIsFocusable);
scene.addItem(item2);
scene.setFocusItem(item2);
QCOMPARE(view.testAttribute(Qt::WA_InputMethodEnabled), false);
QCOMPARE(item2->m_viewHasIMEnabledInFocusInEvent, false);
QCOMPARE(scene.focusItem(), static_cast<QGraphicsItem *>(item2));
scene.setFocusItem(item);
QCOMPARE(view.testAttribute(Qt::WA_InputMethodEnabled), true);
QCOMPARE(item->m_viewHasIMEnabledInFocusInEvent, true);
QCOMPARE(scene.focusItem(), static_cast<QGraphicsItem *>(item));
view.setScene(0);
QCOMPARE(view.testAttribute(Qt::WA_InputMethodEnabled), false);
QCOMPARE(scene.focusItem(), static_cast<QGraphicsItem *>(item));
view.setScene(&scene);
QCOMPARE(view.testAttribute(Qt::WA_InputMethodEnabled), true);
QCOMPARE(item->m_viewHasIMEnabledInFocusInEvent, true);
QCOMPARE(scene.focusItem(), static_cast<QGraphicsItem *>(item));
scene.setFocusItem(item2);
QCOMPARE(view.testAttribute(Qt::WA_InputMethodEnabled), false);
QCOMPARE(item2->m_viewHasIMEnabledInFocusInEvent, false);
QCOMPARE(scene.focusItem(), static_cast<QGraphicsItem *>(item2));
view.setScene(0);
QCOMPARE(view.testAttribute(Qt::WA_InputMethodEnabled), false);
QCOMPARE(scene.focusItem(), static_cast<QGraphicsItem *>(item2));
scene.setFocusItem(item);
QCOMPARE(view.testAttribute(Qt::WA_InputMethodEnabled), false);
QCOMPARE(scene.focusItem(), static_cast<QGraphicsItem *>(item));
view.setScene(&scene);
QCOMPARE(view.testAttribute(Qt::WA_InputMethodEnabled), true);
QCOMPARE(item->m_viewHasIMEnabledInFocusInEvent, true);
QCOMPARE(scene.focusItem(), static_cast<QGraphicsItem *>(item));
}
void tst_QGraphicsView::inputContextReset()
{
if (!QGuiApplicationPrivate::platformIntegration()->hasCapability(QPlatformIntegration::WindowActivation))
QSKIP("Window activation is not supported");
PlatformInputContext inputContext;
QInputMethodPrivate *inputMethodPrivate = QInputMethodPrivate::get(qApp->inputMethod());
inputMethodPrivate->testContext = &inputContext;
QGraphicsScene scene;
QGraphicsView view(&scene);
QVERIFY(view.testAttribute(Qt::WA_InputMethodEnabled));
view.show();
QApplicationPrivate::setActiveWindow(&view);
QVERIFY(QTest::qWaitForWindowExposed(&view));
QVERIFY(QTest::qWaitForWindowActive(&view));
QCOMPARE(QApplication::activeWindow(), static_cast<QWidget *>(&view));
QGraphicsItem *item1 = new QGraphicsRectItem;
item1->setFlags(QGraphicsItem::ItemIsFocusable | QGraphicsItem::ItemAcceptsInputMethod);
inputContext.m_resetCallCount = 0;
inputContext.m_commitCallCount = 0;
scene.addItem(item1);
QCOMPARE(inputContext.m_resetCallCount, 0);
QCOMPARE(inputContext.m_commitCallCount, 0);
scene.setFocusItem(item1);
QCOMPARE(scene.focusItem(), (QGraphicsItem *)item1);
QVERIFY(view.testAttribute(Qt::WA_InputMethodEnabled));
QCOMPARE(inputContext.m_resetCallCount, 0);
QCOMPARE(inputContext.m_commitCallCount, 0);
scene.setFocusItem(0);
// the input context is reset twice, once because an item has lost focus and again because
// the Qt::WA_InputMethodEnabled flag is cleared because no item has focus.
// QEXPECT_FAIL("", "QTBUG-22454", Abort);
QCOMPARE(inputContext.m_resetCallCount + inputContext.m_commitCallCount, 2);
// introduce another item that is focusable but does not accept input methods
QGraphicsItem *item2 = new QGraphicsRectItem;
item2->setFlags(QGraphicsItem::ItemIsFocusable);
scene.addItem(item2);
inputContext.m_resetCallCount = 0;
inputContext.m_commitCallCount = 0;
scene.setFocusItem(item2);
QCOMPARE(inputContext.m_resetCallCount, 0);
QCOMPARE(inputContext.m_commitCallCount, 0);
scene.setFocusItem(item1);
QCOMPARE(inputContext.m_resetCallCount, 0);
QCOMPARE(inputContext.m_commitCallCount, 0);
// test changing between between items that accept input methods.
item2->setFlags(QGraphicsItem::ItemIsFocusable | QGraphicsItem::ItemAcceptsInputMethod);
scene.setFocusItem(item2);
QCOMPARE(inputContext.m_resetCallCount + inputContext.m_commitCallCount, 1);
}
void tst_QGraphicsView::indirectPainting()
{
class MyScene : public QGraphicsScene
{ public:
MyScene() : QGraphicsScene(), drawCount(0) {}
void drawItems(QPainter *, int, QGraphicsItem **, const QStyleOptionGraphicsItem *, QWidget *) override
{ ++drawCount; }
int drawCount;
};
MyScene scene;
QGraphicsItem *item = scene.addRect(0, 0, 50, 50);
QGraphicsView view(&scene);
view.setOptimizationFlag(QGraphicsView::IndirectPainting);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
QTRY_VERIFY(scene.drawCount > 0);
scene.drawCount = 0;
item->setPos(20, 20);
QApplication::processEvents();
QTRY_VERIFY(scene.drawCount > 0);
}
void tst_QGraphicsView::compositionModeInDrawBackground()
{
class MyView : public QGraphicsView
{ public:
MyView(QGraphicsScene *scene) : QGraphicsView(scene),
painted(false), compositionMode(QPainter::CompositionMode_SourceOver) {}
bool painted;
QPainter::CompositionMode compositionMode;
void drawBackground(QPainter *painter, const QRectF &) override
{
compositionMode = painter->compositionMode();
painted = true;
}
};
QGraphicsScene dummy;
MyView view(&dummy);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
// Make sure the painter's composition mode is SourceOver in drawBackground.
QTRY_VERIFY(view.painted);
QCOMPARE(view.compositionMode, QPainter::CompositionMode_SourceOver);
view.painted = false;
view.setCacheMode(QGraphicsView::CacheBackground);
view.viewport()->update();
// Make sure the painter's composition mode is SourceOver in drawBackground
// with background cache enabled.
QTRY_VERIFY(view.painted);
QCOMPARE(view.compositionMode, QPainter::CompositionMode_SourceOver);
}
void tst_QGraphicsView::task253415_reconnectUpdateSceneOnSceneChanged()
{
QGraphicsView view;
QGraphicsView dummyView;
view.setWindowFlags(view.windowFlags() | Qt::WindowStaysOnTopHint);
view.resize(200, 200);
QGraphicsScene scene1;
QObject::connect(&scene1, SIGNAL(changed(QList<QRectF>)), &dummyView, SLOT(updateScene(QList<QRectF>)));
view.setScene(&scene1);
QTest::qWait(12);
QGraphicsScene scene2;
QObject::connect(&scene2, SIGNAL(changed(QList<QRectF>)), &dummyView, SLOT(updateScene(QList<QRectF>)));
view.setScene(&scene2);
QTest::qWait(12);
bool wasConnected2 = QObject::disconnect(&scene2, SIGNAL(changed(QList<QRectF>)), &view, 0);
QVERIFY(wasConnected2);
}
void tst_QGraphicsView::task255529_transformationAnchorMouseAndViewportMargins()
{
QGraphicsScene scene(-100, -100, 200, 200);
scene.addRect(QRectF(-50, -50, 100, 100), QPen(Qt::black), QBrush(Qt::blue));
class VpGraphicsView: public QGraphicsView
{
public:
VpGraphicsView(QGraphicsScene *scene, QWidget *parent=0)
: QGraphicsView(scene, parent)
{
setViewportMargins(8, 16, 12, 20);
setTransformationAnchor(QGraphicsView::AnchorUnderMouse);
setMouseTracking(true);
}
};
VpGraphicsView view(&scene);
view.setWindowFlags(Qt::X11BypassWindowManagerHint);
view.show();
QApplicationPrivate::setActiveWindow(&view);
QVERIFY(QTest::qWaitForWindowExposed(&view));
const bool isActiveWindow = QTest::qWaitForWindowActive(&view);
if (!isActiveWindow)
QSKIP("Window activation failed, skipping test", Abort);
// This is highly unstable (observed to pass on Windows and some Linux configurations).
#ifndef Q_OS_MAC
for (int i = 0; i < 4; ++i) {
QPoint mouseViewPos(20, 20);
sendMouseMove(view.viewport(), mouseViewPos);
QPointF mouseScenePos = view.mapToScene(mouseViewPos);
view.setTransform(QTransform().scale(5, 5).rotate(5, Qt::ZAxis), true);
qreal slack = 1;
QPointF newMouseScenePos = view.mapToScene(mouseViewPos);
const qreal dx = qAbs(newMouseScenePos.x() - mouseScenePos.x());
const qreal dy = qAbs(newMouseScenePos.y() - mouseScenePos.y());
const QByteArray message = QString::fromLatin1("QTBUG-22455, distance: dx=%1, dy=%2 slack=%3 (%4).").
arg(dx).arg(dy).arg(slack).arg(qApp->style()->metaObject()->className()).toLocal8Bit();
if (i == 9 || (dx < slack && dy < slack)) {
QVERIFY2(dx < slack && dy < slack, message.constData());
break;
}
QTest::qWait(100);
}
#endif
}
void tst_QGraphicsView::task259503_scrollingArtifacts()
{
QGraphicsScene scene(0, 0, 800, 600);
QGraphicsRectItem card;
card.setRect(0, 0, 50, 50);
card.setPen(QPen(Qt::darkRed));
card.setBrush(QBrush(Qt::cyan));
card.setZValue(2.0);
card.setPos(300, 300);
scene.addItem(&card);
class SAGraphicsView: public QGraphicsView
{
public:
SAGraphicsView(QGraphicsScene *scene)
: QGraphicsView(scene)
, itSTimeToTest(false)
{
setViewportUpdateMode( QGraphicsView::MinimalViewportUpdate );
resize(QSize(640, 480));
}
QRegion updateRegion;
bool itSTimeToTest;
void paintEvent(QPaintEvent *event) override
{
QGraphicsView::paintEvent(event);
if (itSTimeToTest)
{
QEXPECT_FAIL("", "QTBUG-24296", Continue);
QCOMPARE(event->region(), updateRegion);
}
}
};
SAGraphicsView view(&scene);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
int hsbValue = view.horizontalScrollBar()->value();
view.horizontalScrollBar()->setValue(hsbValue / 2);
QTest::qWait(10);
view.horizontalScrollBar()->setValue(0);
QTest::qWait(10);
QRect itemDeviceBoundingRect = card.deviceTransform(view.viewportTransform()).mapRect(card.boundingRect()).toRect();
itemDeviceBoundingRect.adjust(-2, -2, 2, 2);
view.updateRegion = itemDeviceBoundingRect;
view.updateRegion += itemDeviceBoundingRect.translated(-100, 0);
view.itSTimeToTest = true;
card.setPos(200, 300);
QTest::qWait(10);
}
void tst_QGraphicsView::QTBUG_4151_clipAndIgnore_data()
{
QTest::addColumn<bool>("clip");
QTest::addColumn<bool>("ignoreTransformations");
QTest::addColumn<int>("numItems");
QTest::newRow("none") << false << false << 3;
QTest::newRow("clip") << true << false << 3;
QTest::newRow("ignore") << false << true << 3;
QTest::newRow("clip+ignore") << true << true << 3;
}
void tst_QGraphicsView::QTBUG_4151_clipAndIgnore()
{
if (QGuiApplication::platformName().startsWith(QLatin1String("wayland"), Qt::CaseInsensitive))
QSKIP("Wayland: This fails. Figure out why.");
QFETCH(bool, clip);
QFETCH(bool, ignoreTransformations);
QFETCH(int, numItems);
QGraphicsScene scene;
QGraphicsRectItem *parent = new QGraphicsRectItem(QRectF(0, 0, 50, 50), 0);
QGraphicsRectItem *child = new QGraphicsRectItem(QRectF(-10, -10, 40, 40), parent);
QGraphicsRectItem *ignore = new QGraphicsRectItem(QRectF(60, 60, 50, 50), 0);
if (clip)
parent->setFlags(QGraphicsItem::ItemClipsChildrenToShape);
if (ignoreTransformations)
ignore->setFlag(QGraphicsItem::ItemIgnoresTransformations);
parent->setBrush(Qt::red);
child->setBrush(QColor(0, 0, 255, 128));
ignore->setBrush(Qt::green);
scene.addItem(parent);
scene.addItem(ignore);
QGraphicsView view(&scene);
setFrameless(&view);
view.setFrameStyle(0);
view.resize(75, 75);
view.show();
view.activateWindow();
QVERIFY(QTest::qWaitForWindowExposed(&view));
QVERIFY(QTest::qWaitForWindowActive(&view));
QCOMPARE(QApplication::activeWindow(), (QWidget *)&view);
QCOMPARE(view.items(view.rect()).size(), numItems);
}
void tst_QGraphicsView::QTBUG_5859_exposedRect()
{
class CustomScene : public QGraphicsScene
{
public:
CustomScene(const QRectF &rect) : QGraphicsScene(rect) { }
void drawBackground(QPainter * /* painter */, const QRectF &rect) override
{ lastBackgroundExposedRect = rect; }
QRectF lastBackgroundExposedRect;
};
class CustomRectItem : public QGraphicsRectItem
{
public:
CustomRectItem(const QRectF &rect) : QGraphicsRectItem(rect)
{ setFlag(QGraphicsItem::ItemUsesExtendedStyleOption); }
void paint(QPainter * /* painter */, const QStyleOptionGraphicsItem *option, QWidget * /* widget */ = 0) override
{ lastExposedRect = option->exposedRect; }
QRectF lastExposedRect;
};
CustomScene scene(QRectF(0,0,50,50));
CustomRectItem item(scene.sceneRect());
scene.addItem(&item);
QGraphicsView view(&scene);
view.scale(4.15, 4.15);
view.showNormal();
QApplicationPrivate::setActiveWindow(&view);
QVERIFY(QTest::qWaitForWindowExposed(&view));
QVERIFY(QTest::qWaitForWindowActive(&view));
view.viewport()->update(10,10,20,20);
QTRY_COMPARE(item.lastExposedRect, scene.lastBackgroundExposedRect);
}
#ifndef QT_NO_CURSOR
void tst_QGraphicsView::QTBUG_7438_cursor()
{
QGraphicsScene scene;
QGraphicsItem *item = scene.addRect(QRectF(-10, -10, 20, 20));
item->setFlag(QGraphicsItem::ItemIsMovable);
QGraphicsView view(&scene);
view.setFixedSize(400, 400);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
QCOMPARE(view.viewport()->cursor().shape(), QCursor().shape());
view.viewport()->setCursor(Qt::PointingHandCursor);
QCOMPARE(view.viewport()->cursor().shape(), Qt::PointingHandCursor);
sendMouseMove(view.viewport(), view.mapFromScene(0, 0));
QCOMPARE(view.viewport()->cursor().shape(), Qt::PointingHandCursor);
sendMousePress(view.viewport(), view.mapFromScene(0, 0));
QCOMPARE(view.viewport()->cursor().shape(), Qt::PointingHandCursor);
sendMouseRelease(view.viewport(), view.mapFromScene(0, 0));
QCOMPARE(view.viewport()->cursor().shape(), Qt::PointingHandCursor);
}
#endif
class GraphicsItemWithHover : public QGraphicsRectItem
{
public:
GraphicsItemWithHover()
{
setRect(0, 0, 100, 100);
setAcceptHoverEvents(true);
}
bool sceneEvent(QEvent *event) override
{
if (!checkEvents) // ensures that we don't look at stray events before we are ready
return QGraphicsRectItem::sceneEvent(event);
if (event->type() == QEvent::GraphicsSceneHoverEnter) {
receivedEnterEvent = true;
enterWidget = static_cast<QGraphicsSceneHoverEvent *>(event)->widget();
} else if (event->type() == QEvent::GraphicsSceneHoverLeave) {
receivedLeaveEvent = true;
leaveWidget = static_cast<QGraphicsSceneHoverEvent *>(event)->widget();
}
return QGraphicsRectItem::sceneEvent(event);
}
bool receivedEnterEvent = false;
bool receivedLeaveEvent = false;
QWidget *enterWidget = nullptr;
QWidget *leaveWidget = nullptr;
bool checkEvents = false;
};
void tst_QGraphicsView::hoverLeave()
{
QGraphicsScene scene;
QGraphicsView view(&scene);
view.resize(160, 160);
GraphicsItemWithHover *item = new GraphicsItemWithHover;
scene.addItem(item);
view.showNormal();
QApplicationPrivate::setActiveWindow(&view);
QVERIFY(QTest::qWaitForWindowExposed(&view));
QWindow *viewWindow = view.window()->windowHandle();
QPoint posOutsideItem = view.mapFromScene(item->mapToScene(0, 0)) - QPoint(5, 0);
QPoint posOutsideItemGlobal = view.mapToGlobal(posOutsideItem);
QPoint posOutsideItemInWindow = viewWindow->mapFromGlobal(posOutsideItemGlobal);
QTest::mouseMove(viewWindow, posOutsideItemInWindow);
item->checkEvents = true;
QPoint posInItemGlobal = view.mapToGlobal(view.mapFromScene(item->mapToScene(10, 10)));
QTest::mouseMove(viewWindow, viewWindow->mapFromGlobal(posInItemGlobal));
QTRY_VERIFY(item->receivedEnterEvent);
QCOMPARE(item->enterWidget, view.viewport());
QTest::mouseMove(viewWindow, posOutsideItemInWindow);
QTRY_VERIFY(item->receivedLeaveEvent);
QCOMPARE(item->leaveWidget, view.viewport());
}
class IMItem : public QGraphicsRectItem
{
public:
IMItem(QGraphicsItem *parent = nullptr):
QGraphicsRectItem(QRectF(0, 0, 20, 20), parent)
{
setFlag(QGraphicsItem::ItemIsFocusable, true);
setFlag(QGraphicsItem::ItemAcceptsInputMethod, true);
setPen(Qt::NoPen); // Avoid adding a half pixel border to the rect.
}
QVariant inputMethodQuery(Qt::InputMethodQuery) const override
{
return mf;
}
static QRectF mf;
};
QRectF IMItem::mf(1.5, 1.6, 10, 10);
void tst_QGraphicsView::QTBUG_16063_microFocusRect()
{
if (QGuiApplication::platformName().startsWith(QLatin1String("wayland"), Qt::CaseInsensitive))
QSKIP("Wayland: This fails. Figure out why.");
QGraphicsScene scene;
IMItem *item = new IMItem();
scene.addItem(item);
QGraphicsView view(&scene);
setFrameless(&view);
view.setFixedSize(40, 40);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
QVERIFY(QTest::qWaitForWindowActive(&view));
scene.setFocusItem(item);
view.setFocus();
QRectF mfv = view.inputMethodQuery(Qt::ImCursorRectangle).toRectF();
QCOMPARE(mfv, IMItem::mf.translated(-view.mapToScene(view.sceneRect().toRect()).boundingRect().topLeft()));
}
void tst_QGraphicsView::QTBUG_70255_scrollTo()
{
QGraphicsView view;
QGraphicsScene scene;
view.setFixedSize(200, 200);
scene.setSceneRect(0, 0, 1000, 1000);
QGraphicsRectItem item;
item.setRect(-20, -20, 40, 40);
item.setFlag(QGraphicsItem::ItemIsMovable, true);
scene.addItem(&item);
view.setScene(&scene);
view.centerOn(0, 0);
view.show();
QApplicationPrivate::setActiveWindow(&view);
if (!QTest::qWaitForWindowExposed(&view) || !QTest::qWaitForWindowActive(&view))
QSKIP("Failed to show and activate window");
QPoint point = view.mapFromScene(0, 0);
QCOMPARE(point, QPoint(0, 0));
QScroller::scroller(&view)->scrollTo(QPointF(0, 500), 100);
QTest::qWait(200);
point = view.mapFromScene(0, 0);
QCOMPARE(point, QPoint(0, -500));
}
void tst_QGraphicsView::resizeContentsOnItemDrag_data()
{
QTest::addColumn<Qt::Alignment>("alignment");
QTest::addColumn<Qt::Orientation>("orientation");
QTest::addRow("Center right") << Qt::Alignment(Qt::AlignCenter) << Qt::Horizontal;
QTest::addRow("Center down") << Qt::Alignment(Qt::AlignCenter) << Qt::Vertical;
QTest::addRow("BottomLeft right") << (Qt::AlignBottom | Qt::AlignLeft) << Qt::Horizontal;
QTest::addRow("TopRight down") << (Qt::AlignTop | Qt::AlignRight) << Qt::Vertical;
}
void tst_QGraphicsView::resizeContentsOnItemDrag()
{
QFETCH(Qt::Alignment, alignment);
QFETCH(Qt::Orientation, orientation);
QGraphicsView view;
QGraphicsScene scene;
view.setFixedSize(200, 200);
view.setScene(&scene);
view.setAlignment(alignment);
class MovableItem : public QGraphicsEllipseItem
{
public:
using QGraphicsEllipseItem::QGraphicsEllipseItem;
QList<QPointF> scenePositions;
protected:
void mousePressEvent(QGraphicsSceneMouseEvent *event) override
{
scenePositions << event->scenePos();
}
void mouseMoveEvent(QGraphicsSceneMouseEvent *event) override
{
scenePositions << event->scenePos();
QGraphicsEllipseItem::mouseMoveEvent(event);
}
};
MovableItem item(-10, -10, 20, 20);
item.setFlags(QGraphicsItem::ItemIsMovable);
scene.addItem(&item);
view.show();
QVERIFY(QTest::qWaitForWindowExposed(&view));
// Position the item near the relevant edge of the view, with a few pixels
// to go until the scrollbars should be showing.
if (orientation == Qt::Horizontal)
item.setPos(view.width() - item.rect().width() - 5, 0);
else
item.setPos(0, view.height() - item.rect().height() - 5);
QApplication::processEvents(); // queued connection used to trigger recalculateContentSize
QPoint mousePos = view.mapFromScene(item.pos());
QTest::mousePress(view.viewport(), Qt::LeftButton, {}, mousePos);
QCOMPARE(item.scenePositions.count(), 1);
QCOMPARE(item.scenePositions.takeLast(), view.mapToScene(mousePos));
auto lastItemPos = item.pos();
auto lastScenePos = view.mapToScene(mousePos);
int overshoot = 0;
const QScrollBar *scrollBar = orientation == Qt::Horizontal
? view.horizontalScrollBar()
: view.verticalScrollBar();
// Drag the item until the scroll bars become visible, and then for a few more pixels.
// Verify that the item doesn't jump when the scrollbar shows.
while (overshoot < 10) {
if (orientation == Qt::Horizontal)
mousePos.rx() += 1;
else
mousePos.ry() += 1;
QTest::mouseMove(view.viewport(), mousePos);
QApplication::processEvents(); // queued connection used to trigger recalculateContentSize
const bool scrollbarAvailable = scrollBar->maximum() > scrollBar->minimum();
bool allowMoreEvents = false;
if (scrollbarAvailable) {
if (!overshoot) {
QTRY_VERIFY(scrollBar->isVisible());
// scrollbar becoming visible triggers event replay, so we get more than one
allowMoreEvents = true;
}
++overshoot;
}
if (allowMoreEvents)
QCOMPARE_GE(item.scenePositions.count(), 1);
else
QCOMPARE(item.scenePositions.count(), 1);
const auto scenePos = item.scenePositions.takeLast();
item.scenePositions.clear();
const auto same = orientation == Qt::Horizontal ? &QPointF::y : &QPointF::x;
const auto moved = orientation == Qt::Horizontal ? &QPointF::x : &QPointF::y;
QCOMPARE((item.pos().*same)(), (lastItemPos.*same)());
QCOMPARE_GE((item.pos().*moved)() - (lastItemPos.*moved)(), 1);
QCOMPARE_LE((item.pos().*moved)() - (lastItemPos.*moved)(), 2);
lastItemPos = item.pos();
QCOMPARE((scenePos.*same)(), (lastScenePos.*same)());
QCOMPARE_GE((scenePos.*moved)() - (lastScenePos.*moved)(), 1);
QCOMPARE_LE((scenePos.*moved)() - (lastScenePos.*moved)(), 2);
lastScenePos = scenePos;
}
}
QTEST_MAIN(tst_QGraphicsView)
#include "tst_qgraphicsview.moc"
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