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qt6windows7/tests/auto/gui/painting/qregion/tst_qregion.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 <qregion.h>
#include <qbitmap.h>
#include <qpainter.h>
#include <qpainterpath.h>
#include <qpolygon.h>
#ifdef Q_OS_WIN
# include <qt_windows.h>
#endif
class tst_QRegion : public QObject
{
Q_OBJECT
public:
tst_QRegion();
private slots:
void moveSemantics();
void boundingRect();
void rangeFor();
void rects();
void swap();
void setRects();
void ellipseRegion();
void polygonRegion();
void bitmapRegion();
void intersected_data();
void intersected();
void emptyPolygonRegion_data();
void emptyPolygonRegion();
void intersects_region_data();
void intersects_region();
void intersects_rect_data();
void intersects_rect();
void contains_point();
void operator_plus_data();
void operator_plus();
void operator_minus_data();
void operator_minus();
void operator_intersect_data();
void operator_intersect();
void operator_xor_data();
void operator_xor();
void rectCount_data();
void rectCount();
void isEmpty_data();
void isEmpty();
void regionFromPath();
void scaleRegions_data();
void scaleRegions();
#ifdef QT_BUILD_INTERNAL
void regionToPath_data();
void regionToPath();
#endif
#ifdef Q_OS_WIN
void winConversion();
#endif
};
tst_QRegion::tst_QRegion()
{
}
void tst_QRegion::moveSemantics()
{
const QRegion rect(QRect(0, 0, 100, 100));
// move assignment
{
QRegion r1 = rect;
QRegion r2;
r2 = std::move(r1);
QVERIFY(r1.isNull());
QCOMPARE(r2, rect);
}
// move construction
{
QRegion r1 = rect;
QRegion r2 = std::move(r1);
QVERIFY(r1.isNull());
QCOMPARE(r2, rect);
}
}
void tst_QRegion::boundingRect()
{
{
QRect rect;
QRegion region(rect);
QCOMPARE(region.boundingRect(), rect);
}
{
QRect rect(10, -20, 30, 40);
QRegion region(rect);
QCOMPARE(region.boundingRect(), rect);
}
{
QRect rect(15,25,10,10);
QRegion region(rect);
QCOMPARE(region.boundingRect(), rect);
}
}
void tst_QRegion::rangeFor()
{
// compile-only test for range-for over QRegion, so really useless
// content otherwise:
QRect rect(10, -20, 30, 40);
QRegion region(rect);
int equal = 0;
for (const QRect &r : region) // check this compiles
equal += int(r == rect); // can't use QCOMPARE here b/c of the
// MSVC 201272013 parse bug re:
// do-while in range-for loops
QCOMPARE(equal, 1);
}
void tst_QRegion::rects()
{
{
QRect rect;
QRegion region(rect);
QVERIFY(region.isEmpty());
QCOMPARE(region.begin(), region.end());
}
{
QRect rect(10, -20, 30, 40);
QRegion region(rect);
QCOMPARE(region.end(), region.begin() + 1);
QCOMPARE(*region.begin(), rect);
}
{
QRect r(QPoint(10, 10), QPoint(40, 40));
QRegion region(r);
QVERIFY(region.contains(QPoint(10,10)));
QVERIFY(region.contains(QPoint(20,40)));
QVERIFY(region.contains(QPoint(40,20)));
QVERIFY(!region.contains(QPoint(20,41)));
QVERIFY(!region.contains(QPoint(41,20)));
}
{
QRect r(10, 10, 30, 30);
QRegion region(r);
QVERIFY(region.contains(QPoint(10,10)));
QVERIFY(region.contains(QPoint(20,39)));
QVERIFY(region.contains(QPoint(39,20)));
QVERIFY(!region.contains(QPoint(20,40)));
QVERIFY(!region.contains(QPoint(40,20)));
}
}
void tst_QRegion::swap()
{
QRegion r1(QRect(0, 0,10,10));
QRegion r2(QRect(10,10,10,10));
r1.swap(r2);
QCOMPARE(*r1.begin(), QRect(10,10,10,10));
QCOMPARE(*r2.begin(), QRect(0, 0,10,10));
}
void tst_QRegion::setRects()
{
{
QRegion region;
region.setRects(0, 0);
QVERIFY(region.isEmpty());
QCOMPARE(region.begin(), region.end());
}
{
QRegion region;
QRect rect;
region.setRects(&rect, 0);
QVERIFY(region.isEmpty());
QCOMPARE(region, QRegion());
QCOMPARE(region.begin(), region.end());
QVERIFY(!region.boundingRect().isValid());
}
{
QRegion region;
QRect rect;
region.setRects(&rect, 1);
QCOMPARE(region.begin(), region.end());
QVERIFY(!region.boundingRect().isValid());
}
{
QRegion region;
QRect rect(10, -20, 30, 40);
region.setRects(&rect, 1);
QCOMPARE(region.end(), region.begin() + 1);
QCOMPARE(*region.begin(), rect);
}
}
void tst_QRegion::ellipseRegion()
{
QRegion region(0, 0, 100, 100, QRegion::Ellipse);
// These should not be inside the circe
QVERIFY(!region.contains(QPoint(13, 13)));
QVERIFY(!region.contains(QPoint(13, 86)));
QVERIFY(!region.contains(QPoint(86, 13)));
QVERIFY(!region.contains(QPoint(86, 86)));
// These should be inside
QVERIFY(region.contains(QPoint(16, 16)));
QVERIFY(region.contains(QPoint(16, 83)));
QVERIFY(region.contains(QPoint(83, 16)));
QVERIFY(region.contains(QPoint(83, 83)));
// ..a..
// .. ..
// . .
// . .
// b c
// . .
// . .
// .. ..
// ..d..
QVERIFY(region.contains(QPoint(50, 0))); // Mid-top (a)
QVERIFY(region.contains(QPoint(0, 50))); // Mid-left (b)
QVERIFY(region.contains(QPoint(99, 50))); // Mid-right (c)
QVERIFY(region.contains(QPoint(50, 99))); // Mid-bottom (d)
QRect bounds = region.boundingRect();
QCOMPARE(bounds.x(), 0);
QCOMPARE(bounds.y(), 0);
QCOMPARE(bounds.width(), 100);
QCOMPARE(bounds.height(), 100);
}
void tst_QRegion::polygonRegion()
{
QPolygon pa;
{
QRegion region (pa);
QVERIFY(region.isEmpty());
}
{
pa.setPoints(8, 10, 10, // a____________b
40, 10, // | |
40, 20, // |___ ___|
30, 20, // | |
30, 40, // | |
20, 40, // | |
20, 20, // |____c
10, 20);
QRegion region (pa);
QVERIFY(!region.isEmpty());
// These should not be inside the circle
QVERIFY(!region.contains(QPoint( 9, 9)));
QVERIFY(!region.contains(QPoint(30, 41)));
QVERIFY(!region.contains(QPoint(41, 10)));
QVERIFY(!region.contains(QPoint(31, 21)));
// These should be inside
QVERIFY(region.contains(QPoint(10, 10))); // Upper-left (a)
}
}
void tst_QRegion::emptyPolygonRegion_data()
{
QTest::addColumn<QPolygon>("pa");
QTest::addColumn<bool>("isEmpty");
QTest::addColumn<int>("numRects");
QTest::addColumn<QList<QRect>>("rects");
QPolygon pa;
QTest::newRow("no points") << pa << true << 0 << QList<QRect>();
pa = QPolygon() << QPoint(10,10);
QTest::newRow("one point") << pa << true << 0 << QList<QRect>();
pa = QPolygon() << QPoint(10,10) << QPoint(10,20);
QTest::newRow("two points, horizontal") << pa << true << 0 << QList<QRect>();
pa = QPolygon() << QPoint(10,10) << QPoint(20,10);
QTest::newRow("two points, vertical") << pa << true << 0 << QList<QRect>();
pa = QPolygon() << QPoint(10,10) << QPoint(20,20);
QTest::newRow("two points, diagonal") << pa << true << 0 << QList<QRect>();
pa = QPolygon() << QPoint(10,10) << QPoint(15,15) << QPoint(10,15) << QPoint(10, 10) ;
QList<QRect> v;
v << QRect(10,11,1, 1) << QRect(10,12,2,1) << QRect(10,13,3,1) << QRect(10,14,4,1);
QTest::newRow("triangle") << pa << false << 4 << v;
v.clear();
v << QRect(10,10,10,10);
QTest::newRow("rectangle") << QPolygon(QRect(10,10,10,10)) << false << 1 << v;
}
void tst_QRegion::emptyPolygonRegion()
{
QFETCH(QPolygon, pa);
QRegion r(pa);
QTEST(r.isEmpty(), "isEmpty");
QTEST(int(std::distance(r.begin(), r.end())), "numRects");
QList<QRect> rects;
std::copy(r.begin(), r.end(), std::back_inserter(rects));
QTEST(int(rects.size()), "numRects");
QTEST(rects, "rects");
}
static const char *circle_xpm[] = {
"20 20 2 1",
" c #FFFFFF",
". c #000000",
" ...... ",
" .......... ",
" .............. ",
" ................ ",
" ................ ",
" .................. ",
" .................. ",
"....................",
"....................",
"....................",
"....................",
"....................",
"....................",
" .................. ",
" .................. ",
" ................ ",
" ................ ",
" .............. ",
" .......... ",
" ...... "
};
void tst_QRegion::bitmapRegion()
{
QBitmap circle;
{
QRegion region(circle);
QVERIFY(region.isEmpty());
}
{
circle = QBitmap::fromPixmap(QPixmap(circle_xpm));
QRegion region(circle);
//// These should not be inside the circe
QVERIFY(!region.contains(QPoint(2, 2)));
QVERIFY(!region.contains(QPoint(2, 17)));
QVERIFY(!region.contains(QPoint(17, 2)));
QVERIFY(!region.contains(QPoint(17, 17)));
//// These should be inside
QVERIFY(region.contains(QPoint(3, 3)));
QVERIFY(region.contains(QPoint(3, 16)));
QVERIFY(region.contains(QPoint(16, 3)));
QVERIFY(region.contains(QPoint(16, 16)));
QVERIFY(region.contains(QPoint(0, 10))); // Mid-left
QVERIFY(region.contains(QPoint(10, 0))); // Mid-top
QVERIFY(region.contains(QPoint(19, 10))); // Mid-right
QVERIFY(region.contains(QPoint(10, 19))); // Mid-bottom
}
}
void tst_QRegion::intersected_data()
{
QTest::addColumn<QRegion>("r1");
QTest::addColumn<QRegion>("r2");
QTest::addColumn<bool>("intersects");
// QTest::addColumn<QRegion>("intersected");
QPolygon ps1(8);
QPolygon ps2(8);
ps1.putPoints(0,8, 20,20, 50,20, 50,100, 70,100, 70,20, 120,20, 120,200, 20, 200);
ps2.putPoints(0,8, 100,150, 140,150, 140,160, 160,160, 160,150, 200,150, 200,180, 100,180);
QTest::newRow("task30716") << QRegion(ps1) << QRegion(ps2) << true;
}
void tst_QRegion::intersected()
{
QFETCH(QRegion, r1);
QFETCH(QRegion, r2);
QFETCH(bool, intersects);
QRegion interReg = r1.intersected(r2);
QVERIFY(interReg.isEmpty() != intersects);
// Need a way to test the intersected QRegion is right
}
void tst_QRegion::intersects_region_data()
{
QTest::addColumn<QRegion>("r1");
QTest::addColumn<QRegion>("r2");
QTest::addColumn<bool>("intersects");
QTest::newRow("rect overlap rect") << QRegion(100, 100, 200, 200)
<< QRegion(200, 200, 200, 200)
<< true;
QTest::newRow("rect not overlap rect") << QRegion(100, 100, 200, 200)
<< QRegion(400, 400, 200, 200)
<< false;
QTest::newRow("ellipse overlap ellipse") << QRegion(100, 100, 200, 200, QRegion::Ellipse)
<< QRegion(200, 200, 200, 200, QRegion::Ellipse)
<< true;
QTest::newRow("ellipse not overlap ellipse") << QRegion(100, 100, 200, 200, QRegion::Ellipse)
<< QRegion(400, 400, 200, 200, QRegion::Ellipse)
<< false;
}
void tst_QRegion::intersects_region()
{
QFETCH(QRegion, r1);
QFETCH(QRegion, r2);
QFETCH(bool, intersects);
QCOMPARE(r1.intersects(r2), intersects);
}
void tst_QRegion::intersects_rect_data()
{
QTest::addColumn<QRegion>("region");
QTest::addColumn<QRect>("rect");
QTest::addColumn<bool>("intersects");
QTest::newRow("rect overlap rect") << QRegion(100, 100, 200, 200)
<< QRect(200, 200, 200, 200)
<< true;
QTest::newRow("rect not overlap rect") << QRegion(100, 100, 200, 200)
<< QRect(400, 400, 200, 200)
<< false;
QTest::newRow("ellipse overlap rect") << QRegion(100, 100, 200, 200, QRegion::Ellipse)
<< QRect(200, 200, 200, 200)
<< true;
QTest::newRow("ellipse not overlap rect") << QRegion(100, 100, 200, 200, QRegion::Ellipse)
<< QRect(400, 400, 200, 200)
<< false;
}
void tst_QRegion::intersects_rect()
{
QFETCH(QRegion, region);
QFETCH(QRect, rect);
QFETCH(bool, intersects);
QCOMPARE(region.intersects(rect), intersects);
}
void tst_QRegion::contains_point()
{
QCOMPARE(QRegion().contains(QPoint(1,1)),false);
QCOMPARE(QRegion(0,0,2,2).contains(QPoint(1,1)),true);
}
void tst_QRegion::operator_plus_data()
{
QTest::addColumn<QRegion>("r1");
QTest::addColumn<QRegion>("r2");
QTest::addColumn<QRegion>("expected");
QTest::newRow("empty 0") << QRegion() << QRegion() << QRegion();
QTest::newRow("empty 1") << QRegion() << QRegion(QRect(10, 10, 10, 10))
<< QRegion(QRect(10, 10, 10, 10));
QTest::newRow("empty 2") << QRegion(QRect(10, 10, 10, 10)) << QRegion()
<< QRegion(QRect(10, 10, 10, 10));
QRegion expected;
QList<QRect> rects;
rects << QRect(10, 10, 10, 10) << QRect(22, 10, 10, 10);
expected.setRects(rects.constData(), rects.size());
QTest::newRow("non overlapping") << QRegion(10, 10, 10, 10)
<< QRegion(22, 10, 10, 10)
<< expected;
rects.clear();
rects << QRect(50, 0, 50, 2);
expected.setRects(rects.constData(), rects.size());
QTest::newRow("adjacent y-rects") << QRegion(50, 0, 50, 1)
<< QRegion(50, 1, 50, 1)
<< expected;
rects.clear();
rects << QRect(50, 0, 2, 1);
expected.setRects(rects.constData(), rects.size());
QTest::newRow("adjacent x-rects") << QRegion(50, 0, 1, 1)
<< QRegion(51, 0, 1, 1)
<< expected;
rects.clear();
rects << QRect(10, 10, 10, 10) << QRect(10, 20, 5, 10);
QRegion r1;
r1.setRects(rects.constData(), rects.size());
QTest::newRow("double merge") << r1 << QRegion(15, 20, 5, 10)
<< QRegion(10, 10, 10, 20);
rects.clear();
rects << QRect(15, 10, 5, 10) << QRect(10, 20, 10, 10);
r1.setRects(rects.constData(), rects.size());
QTest::newRow("double merge 2") << r1 << QRegion(10, 10, 5, 10)
<< QRegion(10, 10, 10, 20);
QTest::newRow("overlapping x") << QRegion(10, 10, 10, 10)
<< QRegion(15, 10, 10, 10)
<< QRegion(10, 10, 15, 10);
QTest::newRow("overlapping y") << QRegion(10, 10, 10, 10)
<< QRegion(10, 15, 10, 10)
<< QRegion(10, 10, 10, 15);
rects.clear();
rects << QRect(10, 10, 10, 10) << QRect(10, 20, 5, 10);
r1.setRects(rects.constData(), rects.size());
rects.clear();
rects << QRect(15, 20, 5, 10) << QRect(10, 30, 10, 10);
QRegion r2;
r2.setRects(rects.constData(), rects.size());
QTest::newRow("triple merge") << r1 << r2
<< QRegion(10, 10, 10, 30);
rects.clear();
rects << QRect(10, 10, 4, 10) << QRect(15, 10, 10, 10);
r1.setRects(rects.constData(), rects.size());
rects.clear();
rects << QRect(15, 20, 10, 10);
r2.setRects(rects.constData(), rects.size());
rects.clear();
rects << QRect(10, 10, 4, 10) << QRect(15, 10, 10, 10)
<< QRect(15, 20, 10, 10);
expected.setRects(rects.constData(), rects.size());
QTest::newRow("don't merge y") << r1 << r2 << expected;
QTest::newRow("equal 1") << QRegion(10, 10, 10, 10)
<< QRegion(10, 10, 10, 10)
<< QRegion(10, 10, 10, 10);
QTest::newRow("equal 2") << expected << expected << expected;
}
void tst_QRegion::operator_plus()
{
QFETCH(QRegion, r1);
QFETCH(QRegion, r2);
QFETCH(QRegion, expected);
if (r1 + r2 != expected) {
qDebug() << "r1 + r2" << (r1 + r2);
qDebug() << "expected" << expected;
}
QCOMPARE(r1 + r2, expected);
if (r2.rectCount() == 1) {
if (r1 + r2.boundingRect() != expected) {
qDebug() << "r1 + QRect(r2)" << (r1 + r2.boundingRect());
qDebug() << "expected" << expected;
}
QCOMPARE(r1 + r2.boundingRect(), expected);
}
if (r2 + r1 != expected) {
qDebug() << "r2 + r1" << (r2 + r1);
qDebug() << "expected" << expected;
}
QCOMPARE(r2 + r1, expected);
if (r1.rectCount() == 1) {
if (r1 + r2.boundingRect() != expected) {
qDebug() << "r2 + QRect(r1)" << (r2 + r1.boundingRect());
qDebug() << "expected" << expected;
}
QCOMPARE(r2 + r1.boundingRect(), expected);
}
QRegion result1 = r1;
result1 += r2;
if (result1 != expected) {
qDebug() << "r1 += r2" << result1;
qDebug() << "expected" << expected;
}
QCOMPARE(result1, expected);
if (r2.rectCount() == 1) {
result1 = r1;
result1 += r2.boundingRect();
if (result1 != expected) {
qDebug() << "r1 += QRect(r2)" << result1;
qDebug() << "expected" << expected;
}
QCOMPARE(result1, expected);
}
QRegion result2 = r2;
result2 += r1;
if (result2 != expected) {
qDebug() << "r2 += r1" << result2;
qDebug() << "expected" << expected;
}
QCOMPARE(result2, expected);
if (r1.rectCount() == 1) {
result2 = r2;
result2 += r1.boundingRect();
if (result2 != expected) {
qDebug() << "r2 += QRect(r1)" << result2;
qDebug() << "expected" << expected;
}
QCOMPARE(result2, expected);
}
}
void tst_QRegion::operator_minus_data()
{
QTest::addColumn<QRegion>("dest");
QTest::addColumn<QRegion>("subtract");
QTest::addColumn<QRegion>("expected");
QTest::newRow("empty 0") << QRegion() << QRegion() << QRegion();
QTest::newRow("empty 1") << QRegion() << QRegion(QRect(10, 10, 10, 10))
<< QRegion();
QTest::newRow("empty 2") << QRegion(QRect(10, 10, 10, 10)) << QRegion()
<< QRegion(QRect(10, 10, 10, 10));
QRegion dest;
QList<QRect> rects;
rects << QRect(10, 10, 10, 10) << QRect(22, 10, 10, 10);
dest.setRects(rects.constData(), rects.size());
QTest::newRow("simple 1") << dest
<< QRegion(22, 10, 10, 10)
<< QRegion(10, 10, 10, 10);
QTest::newRow("simple 2") << dest
<< QRegion(10, 10, 10, 10)
<< QRegion(22, 10, 10, 10);
rects.clear();
rects << QRect(0, 0, 10, 10) << QRect(15, 0, 10, 10);
dest.setRects(rects.constData(), rects.size());
QRegion minus;
rects.clear();
rects << QRect(0, 0, 12, 12) << QRect(15, 0, 12, 12);
minus.setRects(rects.constData(), rects.size());
QTest::newRow("empty 3") << dest << minus << QRegion();
}
void tst_QRegion::operator_minus()
{
QFETCH(QRegion, dest);
QFETCH(QRegion, subtract);
QFETCH(QRegion, expected);
if (dest - subtract != expected) {
qDebug() << "dest - subtract" << (dest - subtract);
qDebug() << "expected" << expected;
};
QCOMPARE(dest - subtract, expected);
dest -= subtract;
if (dest != expected) {
qDebug() << "dest" << dest;
qDebug() << "expected" << expected;
};
QCOMPARE(dest, expected);
}
void tst_QRegion::operator_intersect_data()
{
QTest::addColumn<QRegion>("r1");
QTest::addColumn<QRegion>("r2");
QTest::addColumn<QRegion>("expected");
QTest::newRow("empty 0") << QRegion() << QRegion() << QRegion();
QTest::newRow("empty 1") << QRegion() << QRegion(QRect(10, 10, 10, 10))
<< QRegion();
QTest::newRow("empty 2") << QRegion(QRect(10, 10, 10, 10)) << QRegion()
<< QRegion();
QRegion dest;
QList<QRect> rects;
rects << QRect(10, 10, 10, 10) << QRect(22, 10, 10, 10);
dest.setRects(rects.constData(), rects.size());
QTest::newRow("simple 1") << dest
<< QRegion(22, 10, 10, 10)
<< QRegion(22, 10, 10, 10);
QTest::newRow("simple 2") << dest
<< QRegion(10, 10, 10, 10)
<< QRegion(10, 10, 10, 10);
rects.clear();
rects << QRect(10, 10, 10, 10) << QRect(10, 20, 15, 10);
dest.setRects(rects.constData(), rects.size());
QTest::newRow("merge 1") << dest
<< QRegion(10, 10, 10, 20)
<< QRegion(10, 10, 10, 20);
rects.clear();
rects << QRect(11, 11, 218, 117) << QRect(11, 128, 218, 27)
<< QRect(264, 128, 122, 27) << QRect(11, 155, 218, 43)
<< QRect(11, 198, 218, 27) << QRect(264, 198, 122, 27)
<< QRect(11, 225, 218, 221);
dest.setRects(rects.constData(), rects.size());
QTest::newRow("merge 2") << dest << QRegion(11, 11, 218, 458)
<< QRegion(11, 11, 218, 435);
rects.clear();
rects << QRect(0, 0, 10, 10) << QRect(20, 0, 10, 10);
dest.setRects(rects.constData(), rects.size());
QTest::newRow("empty 3") << dest << QRegion(11, 0, 5, 5) << QRegion();
QTest::newRow("extents check") << dest << QRegion(0, 0, 15, 15)
<< QRegion(0, 0, 10, 10);
rects.clear();
rects << QRect(10, 10, 10, 10) << QRect(10, 20, 10, 10)
<< QRect(30, 20, 10, 10) << QRect(10, 30, 10, 10);
dest.setRects(rects.constData(), rects.size());
rects.clear();
rects << QRect(10, 10, 10, 10) << QRect(10, 20, 10, 10)
<< QRect(30, 20, 10, 10);
QRegion expected;
expected.setRects(rects.constData(), rects.size());
QTest::newRow("dont merge") << dest << QRegion(0, 0, 100, 30)
<< expected;
}
void tst_QRegion::operator_intersect()
{
QFETCH(QRegion, r1);
QFETCH(QRegion, r2);
QFETCH(QRegion, expected);
if ((r1 & r2) != expected) {
qDebug() << "r1 & r2" << (r1 & r2);
qDebug() << "expected" << expected;
}
QCOMPARE(r1 & r2, expected);
if ((r2 & r1) != expected) {
qDebug() << "r2 & r1" << (r2 & r1);
qDebug() << "expected" << expected;
}
QCOMPARE(r2 & r1, expected);
r1 &= r2;
QCOMPARE(r1, expected);
}
void tst_QRegion::operator_xor_data()
{
QTest::addColumn<QRegion>("dest");
QTest::addColumn<QRegion>("arg");
QTest::addColumn<QRegion>("expected");
QTest::newRow("empty 0") << QRegion() << QRegion() << QRegion();
QTest::newRow("empty 1") << QRegion() << QRegion(QRect(10, 10, 10, 10))
<< QRegion(QRect(10, 10, 10, 10));
QTest::newRow("empty 2") << QRegion(QRect(10, 10, 10, 10)) << QRegion()
<< QRegion(QRect(10, 10, 10, 10));
QRegion dest;
QList<QRect> rects;
rects << QRect(10, 10, 10, 10) << QRect(22, 10, 10, 10);
dest.setRects(rects.constData(), rects.size());
QTest::newRow("simple 1") << dest
<< QRegion(22, 10, 10, 10)
<< QRegion(10, 10, 10, 10);
QTest::newRow("simple 2") << dest
<< QRegion(10, 10, 10, 10)
<< QRegion(22, 10, 10, 10);
QTest::newRow("simple 3") << dest << dest << QRegion();
QTest::newRow("simple 4") << QRegion(10, 10, 10, 10)
<< QRegion(10, 10, 5, 10)
<< QRegion(15, 10, 5, 10);
QTest::newRow("simple 5") << QRegion(10, 10, 10, 10)
<< QRegion(10, 10, 10, 5)
<< QRegion(10, 15, 10, 5);
const QRegion rgnA(0, 0, 100, 100);
const QRegion rgnB(0, 0, 10, 10);
QTest::newRow("simple 6") << rgnA
<< rgnA - rgnB
<< rgnB;
QTest::newRow("simple 7") << rgnB
<< rgnA
<< rgnA - rgnB;
}
void tst_QRegion::operator_xor()
{
QFETCH(QRegion, dest);
QFETCH(QRegion, arg);
QFETCH(QRegion, expected);
QCOMPARE(dest ^ arg, expected);
QCOMPARE(dest.xored(arg), expected);
dest ^= arg;
QCOMPARE(dest, expected);
}
void tst_QRegion::rectCount_data()
{
QTest::addColumn<QRegion>("region");
QTest::addColumn<int>("expected");
QTest::newRow("empty") << QRegion() << 0;
QTest::newRow("rect") << QRegion(10, 10, 10, 10) << 1;
QRegion dest;
QList<QRect> rects;
rects << QRect(10, 10, 10, 10) << QRect(22, 10, 10, 10);
dest.setRects(rects.constData(), rects.size());
QTest::newRow("2 rects") << dest << rects.size();
}
void tst_QRegion::rectCount()
{
QFETCH(QRegion, region);
QFETCH(int, expected);
QCOMPARE(region.rectCount(), expected);
}
void tst_QRegion::isEmpty_data()
{
QTest::addColumn<QRegion>("region");
QTest::newRow("QRegion") << QRegion();
QList<QRect> rects;
rects << QRect(0, 0, 10, 10) << QRect(15, 0, 10, 10);
QRegion r1;
r1.setRects(rects.constData(), rects.size());
QRegion r2;
rects.clear();
rects << QRect(0, 0, 12, 12) << QRect(15, 0, 12, 12);
r2.setRects(rects.constData(), rects.size());
QTest::newRow("minus") << (r1 - r2);
}
void tst_QRegion::isEmpty()
{
QFETCH(QRegion, region);
QVERIFY(region.isEmpty());
QCOMPARE(region.begin(), region.end());
QCOMPARE(region, QRegion());
QCOMPARE(region.rectCount(), 0);
QCOMPARE(region.boundingRect(), QRect());
}
void tst_QRegion::regionFromPath()
{
{
QPainterPath path;
path.addRect(0, 0, 10, 10);
path.addRect(0, 100, 100, 1000);
QRegion rgn(path.toFillPolygon().toPolygon());
QCOMPARE(rgn.end(), rgn.begin() + 2);
QCOMPARE(rgn.begin()[0], QRect(0, 0, 10, 10));
QCOMPARE(rgn.begin()[1], QRect(0, 100, 100, 1000));
QCOMPARE(rgn.boundingRect(), QRect(0, 0, 100, 1100));
}
{
QPainterPath path;
path.addRect(0, 0, 100, 100);
path.addRect(10, 10, 80, 80);
QRegion rgn(path.toFillPolygon().toPolygon());
QCOMPARE(rgn.end(), rgn.begin() + 4);
QCOMPARE(rgn.begin()[0], QRect(0, 0, 100, 10));
QCOMPARE(rgn.begin()[1], QRect(0, 10, 10, 80));
QCOMPARE(rgn.begin()[2], QRect(90, 10, 10, 80));
QCOMPARE(rgn.begin()[3], QRect(0, 90, 100, 10));
QCOMPARE(rgn.boundingRect(), QRect(0, 0, 100, 100));
}
}
void tst_QRegion::scaleRegions_data()
{
QTest::addColumn<qreal>("scale");
QTest::addColumn<QList<QRect>>("inputRects");
QTest::addColumn<QList<QRect>>("expectedRects");
QTest::newRow("1.0 single") << 1.0 << QList<QRect> { QRect(10, 10, 20, 20) }
<< QList<QRect> { QRect(10, 10, 20, 20) };
QTest::newRow("1.0 multi") << 1.0
<< QList<QRect> { QRect(10, 10, 20, 20), QRect(40, 10, 20, 20) }
<< QList<QRect> { QRect(10, 10, 20, 20), QRect(40, 10, 20, 20) };
QTest::newRow("2.0 single") << 2.0 << QList<QRect> { QRect(10, 10, 20, 20) }
<< QList<QRect> { QRect(20, 20, 40, 40) };
QTest::newRow("2.0 multi") << 2.0
<< QList<QRect> { QRect(10, 10, 20, 20), QRect(40, 10, 20, 20) }
<< QList<QRect> { QRect(20, 20, 40, 40), QRect(80, 20, 40, 40) };
QTest::newRow("-1.0 single") << -1.0 << QList<QRect> { QRect(10, 10, 20, 20) }
<< QList<QRect> { QRect(-30, -30, 20, 20) };
QTest::newRow("-1.0 multi") << -1.0
<< QList<QRect> { QRect(10, 10, 20, 20), QRect(40, 10, 20, 20) }
<< QList<QRect> { QRect(-60, -30, 20, 20),
QRect(-30, -30, 20, 20) };
QTest::newRow("-2.0 single") << -2.0 << QList<QRect> { QRect(10, 10, 20, 20) }
<< QList<QRect> { QRect(-60, -60, 40, 40) };
QTest::newRow("-2.0 multi") << -2.0
<< QList<QRect> { QRect(10, 10, 20, 20), QRect(40, 10, 20, 20) }
<< QList<QRect> { QRect(-120, -60, 40, 40),
QRect(-60, -60, 40, 40) };
}
void tst_QRegion::scaleRegions()
{
QFETCH(qreal, scale);
QFETCH(QList<QRect>, inputRects);
QFETCH(QList<QRect>, expectedRects);
QRegion region;
region.setRects(inputRects.constData(), inputRects.size());
QRegion expected(expectedRects.first());
expected.setRects(expectedRects.constData(), expectedRects.size());
QTransform t;
t.scale(scale, scale);
auto result = t.map(region);
QCOMPARE(result.rectCount(), expectedRects.size());
QCOMPARE(result, expected);
}
Q_DECLARE_METATYPE(QPainterPath)
#ifdef QT_BUILD_INTERNAL
void tst_QRegion::regionToPath_data()
{
QTest::addColumn<QPainterPath>("path");
{
QPainterPath path;
path.addRect(QRect(0, 0, 10, 10));
QTest::newRow("Rectangle") << path;
}
{
QPainterPath path;
path.addRect(QRect(0, 0, 10, 10));
path.addRect(QRect(20, 0, 10, 10));
QTest::newRow("Two rects") << path;
}
{
QPainterPath path;
path.addEllipse(QRect(0, 0, 10, 10));
QTest::newRow("Ellipse") << path;
}
{
QPainterPath path;
path.addRect(QRect(0, 0, 3, 8));
path.addRect(QRect(6, 0, 3, 8));
path.addRect(QRect(3, 3, 3, 2));
path.addRect(QRect(12, 3, 3, 2));
QTest::newRow("H-dot") << path;
}
{
QPainterPath path;
for (int y = 0; y <= 10; ++y) {
for (int x = 0; x <= 10; ++x) {
if (!(y & 1) || ((x ^ y) & 1))
path.addRect(QRect(x, y, 1, 1));
}
}
QTest::newRow("Grid") << path;
}
}
#endif
#ifdef QT_BUILD_INTERNAL
QT_BEGIN_NAMESPACE
extern QPainterPath qt_regionToPath(const QRegion &region);
QT_END_NAMESPACE
#endif
#ifdef QT_BUILD_INTERNAL
void tst_QRegion::regionToPath()
{
QFETCH(QPainterPath, path);
for (int i = 0; i < 360; i += 10) {
QTransform transform;
transform.scale(5, 5);
transform.rotate(i);
QPainterPath mapped = transform.map(path);
QRegion region(mapped.toFillPolygon().toPolygon());
QPainterPath a;
a.addRegion(region);
QPainterPath b = qt_regionToPath(region);
QRect r = a.boundingRect().toAlignedRect();
QImage ia(r.size(), QImage::Format_RGB32);
ia.fill(0xffffffff);
QImage ib = ia;
QPainter p(&ia);
p.translate(-r.x(), -r.y());
p.fillPath(a, Qt::red);
p.end();
p.begin(&ib);
p.translate(-r.x(), -r.y());
p.fillPath(b, Qt::red);
p.end();
QCOMPARE(ia, ib);
QCOMPARE(a.boundingRect(), b.boundingRect());
}
}
#endif // QT_BUILD_INTERNAL
#ifdef Q_OS_WIN
void tst_QRegion::winConversion()
{
const QList<QRect> rects{QRect(10, 10, 10, 10), QRect(10, 20, 10, 10),
QRect(30, 20, 10, 10), QRect(10, 30, 10, 10)};
QRegion region;
region.setRects(rects.constData(), rects.size());
auto hrgn = region.toHRGN();
QVERIFY(hrgn);
QRegion convertedBack = QRegion::fromHRGN(hrgn);
QCOMPARE(region, convertedBack);
}
#endif // Q_OS_WIN
QTEST_MAIN(tst_QRegion)
#include "tst_qregion.moc"
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