mirror of
https://github.com/crystalidea/qt6windows7.git
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275 lines
7.1 KiB
C++
275 lines
7.1 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
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#include <QTest>
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#include <QBuffer>
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#include <qpicture.h>
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#include <qpainter.h>
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#include <qimage.h>
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#include <qpaintengine.h>
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#include <qguiapplication.h>
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#include <qscreen.h>
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#include <limits.h>
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#ifndef QT_NO_PICTURE
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class tst_QPicture : public QObject
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{
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Q_OBJECT
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public:
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tst_QPicture();
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private slots:
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void devType();
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void paintingActive();
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void boundingRect();
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void swap();
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void serialization();
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void save_restore();
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void boundaryValues_data();
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void boundaryValues();
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};
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tst_QPicture::tst_QPicture()
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{
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}
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void tst_QPicture::devType()
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{
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QPicture p;
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QCOMPARE( p.devType(), (int)QInternal::Picture );
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}
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void tst_QPicture::paintingActive()
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{
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// actually implemented in QPainter but QPicture is a good
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// example of an external paint device
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QPicture p;
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QVERIFY( !p.paintingActive() );
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QPainter pt( &p );
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QVERIFY( p.paintingActive() );
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pt.end();
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QVERIFY( !p.paintingActive() );
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}
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void tst_QPicture::boundingRect()
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{
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QPicture p1;
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// default value
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QVERIFY( !p1.boundingRect().isValid() );
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QRect r1( 20, 30, 5, 15 );
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p1.setBoundingRect( r1 );
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QCOMPARE( p1.boundingRect(), r1 );
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p1.setBoundingRect(QRect());
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QPainter pt( &p1 );
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pt.drawLine( 10, 20, 110, 80 );
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pt.end();
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// assignment and copy constructor
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QRect r2( 10, 20, 100, 60 );
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QCOMPARE( p1.boundingRect(), r2 );
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QPicture p2( p1 );
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QCOMPARE( p2.boundingRect(), r2 );
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QPicture p3;
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p3 = p1;
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QCOMPARE( p3.boundingRect(), r2 );
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{
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QPicture p4;
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QPainter p(&p4);
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p.drawLine(0, 0, 5, 0);
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p.drawLine(0, 0, 0, 5);
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p.end();
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QRect r3(0, 0, 5, 5);
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QCOMPARE(p4.boundingRect(), r3);
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}
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}
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void tst_QPicture::swap()
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{
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QPicture p1, p2;
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QPainter(&p1).drawLine(0, 0, 5, 5);
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QPainter(&p2).drawLine(0, 3, 3, 0);
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QCOMPARE(p1.boundingRect(), QRect(0,0,5,5));
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QCOMPARE(p2.boundingRect(), QRect(0,0,3,3));
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p1.swap(p2);
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QCOMPARE(p1.boundingRect(), QRect(0,0,3,3));
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QCOMPARE(p2.boundingRect(), QRect(0,0,5,5));
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}
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Q_DECLARE_METATYPE(QDataStream::Version)
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Q_DECLARE_METATYPE(QPicture)
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void ensureSerializesCorrectly(const QPicture &picture, QDataStream::Version version)
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{
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QDataStream stream;
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QBuffer buffer;
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buffer.open(QIODevice::WriteOnly);
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stream.setDevice(&buffer);
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stream.setVersion(version);
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stream << picture;
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buffer.close();
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buffer.open(QIODevice::ReadOnly);
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QPicture readpicture;
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stream >> readpicture;
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QVERIFY2(memcmp(picture.data(), readpicture.data(), picture.size()) == 0,
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qPrintable(QString::fromLatin1("Picture data does not compare equal for QDataStream version %1").arg(version)));
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}
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class PaintEngine : public QPaintEngine
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{
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public:
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PaintEngine() : QPaintEngine() {}
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bool begin(QPaintDevice *) override { return true; }
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bool end() override { return true; }
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void updateState(const QPaintEngineState &) override {}
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void drawPixmap(const QRectF &, const QPixmap &, const QRectF &) override {}
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Type type() const override { return Raster; }
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QFont font() { return state->font(); }
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};
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class Picture : public QPicture
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{
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public:
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Picture() : QPicture() {}
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QPaintEngine *paintEngine() const override { return (QPaintEngine*)&mPaintEngine; }
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private:
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PaintEngine mPaintEngine;
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};
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void tst_QPicture::serialization()
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{
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QDataStream stream;
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const int thisVersion = stream.version();
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for (int version = QDataStream::Qt_1_0; version <= thisVersion; ++version) {
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const QDataStream::Version versionEnum = static_cast<QDataStream::Version>(version);
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{
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// streaming of null pictures
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ensureSerializesCorrectly(QPicture(), versionEnum);
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}
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{
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// picture with a simple line, checking bitwise equality
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QPicture picture;
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QPainter painter(&picture);
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painter.drawLine(10, 20, 30, 40);
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ensureSerializesCorrectly(picture, versionEnum);
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}
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}
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{
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// Test features that were added after Qt 4.5, as that was hard-coded as the major
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// version for a while, which was incorrect. In this case, we'll test font hints.
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QPicture picture;
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QPainter painter;
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QFont font;
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font.setStyleName("Blah");
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font.setHintingPreference(QFont::PreferFullHinting);
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painter.begin(&picture);
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painter.setFont(font);
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painter.drawText(20, 20, "Hello");
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painter.end();
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Picture customPicture;
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painter.begin(&customPicture);
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picture.play(&painter);
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const QFont actualFont = ((PaintEngine*)customPicture.paintEngine())->font();
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painter.end();
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QCOMPARE(actualFont.styleName(), QStringLiteral("Blah"));
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QCOMPARE(actualFont.hintingPreference(), QFont::PreferFullHinting);
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}
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}
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static QRectF scaleRect(const QRectF &rect, qreal xf, qreal yf)
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{
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return QRectF(rect.left() * xf, rect.top() * yf, rect.width() * xf, rect.height() * yf);
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}
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static void paintStuff(QPainter *p)
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{
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const QScreen *screen = QGuiApplication::primaryScreen();
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// Calculate factors from the screen resolution against QPicture's 96DPI
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// (enforced by Qt::AA_Use96Dpi as set by QTEST_MAIN).
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const qreal xf = qreal(p->device()->logicalDpiX()) / screen->logicalDotsPerInchX();
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const qreal yf = qreal(p->device()->logicalDpiY()) / screen->logicalDotsPerInchY();
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p->drawRect(scaleRect(QRectF(100, 100, 100, 100), xf, yf));
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p->save();
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p->translate(10 * xf, 10 * yf);
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p->restore();
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p->drawRect(scaleRect(QRectF(100, 100, 100, 100), xf, yf));
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}
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/* See task: 41469
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Problem is that the state is not properly restored if the basestate of
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the painter is different when the picture data was created compared to
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the base state of the painter when it is played back.
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*/
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void tst_QPicture::save_restore()
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{
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QPicture pic;
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QPainter p;
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p.begin(&pic);
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paintStuff(&p);
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p.end();
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QPixmap pix1(300, 300);
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pix1.fill(Qt::white);
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p.begin(&pix1);
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p.drawPicture(50, 50, pic);
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p.end();
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QPixmap pix2(300, 300);
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pix2.fill(Qt::white);
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p.begin(&pix2);
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p.translate(50, 50);
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paintStuff(&p);
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p.end();
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QVERIFY( pix1.toImage() == pix2.toImage() );
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}
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void tst_QPicture::boundaryValues_data()
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{
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QTest::addColumn<int>("x");
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QTest::addColumn<int>("y");
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QTest::newRow("max x") << INT_MAX << 50;
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QTest::newRow("max y") << 50 << INT_MAX;
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QTest::newRow("max x and y") << INT_MAX << INT_MAX;
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QTest::newRow("min x") << INT_MIN << 50;
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QTest::newRow("min y") << 50 << INT_MIN;
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QTest::newRow("min x and y") << INT_MIN << INT_MIN;
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QTest::newRow("min x, max y") << INT_MIN << INT_MAX;
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QTest::newRow("max x, min y") << INT_MAX << INT_MIN;
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}
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void tst_QPicture::boundaryValues()
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{
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QPicture picture;
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QPainter painter;
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painter.begin(&picture);
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QFETCH(int, x);
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QFETCH(int, y);
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painter.drawPoint(QPoint(x, y));
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painter.end();
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}
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QTEST_MAIN(tst_QPicture)
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#include "tst_qpicture.moc"
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#endif // QT_NO_PICTURE
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