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C++ QTransform::isScaling方法代码示例

本文整理汇总了C++中QTransform::isScaling方法的典型用法代码示例。如果您正苦于以下问题：C++ QTransform::isScaling方法的具体用法？C++ QTransform::isScaling怎么用？C++ QTransform::isScaling使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QTransform的用法示例。


在下文中一共展示了QTransform::isScaling方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: testTransformCombined

void TransformTest::testTransformCombined()
{
	QFETCH(int, type);
	QFETCH(double, rotation);
	
	qint32 dx = -3000;
	qint32 dy = 16000;
	qreal scale_x = 4.5;
	qreal scale_y = 2.5;
	
	QTransform qt;
	// Template::applyTemplateTransform order: translate, rotate, scale
	qt.translate(dx / 1000.0, dy / 1000.0);
	qt.rotate(qreal(rotation));
	qt.scale(scale_x, scale_y);
	QVERIFY(qt.isScaling());
	QCOMPARE(int(qt.type()), type);
	
	auto t = TemplateTransform::fromQTransform(qt);
	QCOMPARE(t.template_x, dx);
	QCOMPARE(t.template_y, dy);
	QCOMPARE(t.template_scale_x, scale_x);
	QCOMPARE(t.template_scale_y, scale_y);
	if (rotation <= 180.0)
		QCOMPARE(t.template_rotation, -qDegreesToRadians(qreal(rotation)));
	else
		QCOMPARE(t.template_rotation, -qDegreesToRadians(qreal(rotation - 360.0)));
}
开发者ID:sikmir，项目名称:mapper，代码行数:28，代码来源:transform_t.cpp

示例2: r

static inline void qwtDrawPixmapSymbols( QPainter *painter,
    const QPointF *points, int numPoints, const QwtSymbol &symbol )
{
    QSize size = symbol.size();
    if ( size.isEmpty() )
        size = symbol.pixmap().size();

    const QTransform transform = painter->transform();
    if ( transform.isScaling() )
    {
        const QRect r( 0, 0, size.width(), size.height() );
        size = transform.mapRect( r ).size();
    }

    QPixmap pm = symbol.pixmap();
    if ( pm.size() != size )
        pm = pm.scaled( size );
    
    QPointF pinPoint( 0.5 * size.width(), 0.5 * size.height() );
    if ( symbol.isPinPointEnabled() )
        pinPoint = symbol.pinPoint();

    painter->resetTransform();

    for ( int i = 0; i < numPoints; i++ )
    {
        const QPointF pos = transform.map( points[i] ) - pinPoint;

        QwtPainter::drawPixmap( painter, 
            QRect( pos.toPoint(), pm.size() ), pm );
    }
}
开发者ID:CaptainFalco，项目名称:OpenPilot，代码行数:32，代码来源:qwt_symbol.cpp

示例3: testEstimateNonIsometric

void TransformTest::testEstimateNonIsometric()
{
	// Scaling and translation
	PassPointList passpoints;
	passpoints.resize(3);
	passpoints[0].src_coords  = MapCoordF { 128.0, 0.0 };
	passpoints[0].dest_coords = MapCoordF { 64.0, 64.0 };
	passpoints[1].src_coords  = MapCoordF { 256.0, 0.0 };
	passpoints[1].dest_coords = MapCoordF { 96.0, 64.0 };
	passpoints[2].src_coords  = MapCoordF { 128.0, 128.0 };
	passpoints[2].dest_coords = MapCoordF { 64.0, 96.0 };
	
	QTransform qt;
	QVERIFY(passpoints.estimateNonIsometricSimilarityTransform(&qt));
	QVERIFY(qt.isTranslating());
	QVERIFY(qt.isScaling());
	QCOMPARE(int(qt.type()), int(QTransform::TxScale));
	
	QCOMPARE(qt.map(passpoints[0].src_coords), QPointF{passpoints[0].dest_coords});
	QCOMPARE(qt.map(passpoints[1].src_coords), QPointF{passpoints[1].dest_coords});
	QCOMPARE(qt.map(passpoints[2].src_coords), QPointF{passpoints[2].dest_coords});
	
	auto t = TemplateTransform::fromQTransform(qt);
	QCOMPARE(t.template_x, MapCoord(32,64).nativeX());
	QCOMPARE(t.template_y, MapCoord(32,64).nativeY());
	QCOMPARE(t.template_scale_x, 0.25);
	QCOMPARE(t.template_scale_y, 0.25);
	QVERIFY(qAbs(t.template_rotation) < 0.000001);
	
	// Rotation
	passpoints[0].src_coords  = MapCoordF { 0.0, 0.0 };
	passpoints[0].dest_coords = MapCoordF { 0.0, 0.0 };
	passpoints[1].src_coords  = MapCoordF { 5.0, 0.0 };
	passpoints[1].dest_coords = MapCoordF { 4.0, -3.0 };
	passpoints[2].src_coords  = MapCoordF { 0.0, 5.0 };
	passpoints[2].dest_coords = MapCoordF { 3.0, 4.0 };
	
	QVERIFY(passpoints.estimateNonIsometricSimilarityTransform(&qt));
	QVERIFY(qt.isRotating());
	QCOMPARE(int(qt.type()), int(QTransform::TxRotate));
	
	QCOMPARE(qt.map(passpoints[0].src_coords), QPointF{passpoints[0].dest_coords});
	QCOMPARE(qt.map(passpoints[1].src_coords), QPointF{passpoints[1].dest_coords});
	QCOMPARE(qt.map(passpoints[2].src_coords), QPointF{passpoints[2].dest_coords});
	
	t = TemplateTransform::fromQTransform(qt);
	QCOMPARE(t.template_x, 0);
	QCOMPARE(t.template_y, 0);
	QCOMPARE(t.template_scale_x, 1.0);
	QCOMPARE(t.template_scale_y, 1.0);
	QCOMPARE(t.template_rotation, qAcos(passpoints[1].dest_coords.x() / passpoints[1].src_coords.x()));
}
开发者ID:sikmir，项目名称:mapper，代码行数:52，代码来源:transform_t.cpp

示例4: testTransformProject

void TransformTest::testTransformProject()
{
	qreal scale_x = 4.5;
	qreal scale_y = 2.5;
	QTransform qt;
	qt.scale(scale_x, scale_y);
	QVERIFY(qt.isScaling());
	QCOMPARE(int(qt.type()), int(QTransform::TxScale));
	
	auto t = TemplateTransform::fromQTransform(qt);

	QCOMPARE(t.template_x, 0);
	QCOMPARE(t.template_y, 0);
	QCOMPARE(t.template_scale_x, scale_x);
	QCOMPARE(t.template_scale_y, scale_y);
	QCOMPARE(t.template_rotation, 0.0);
}
开发者ID:sikmir，项目名称:mapper，代码行数:17，代码来源:transform_t.cpp

示例5: paint

void KPrShapeManagerAnimationStrategy::paint( KoShape * shape, QPainter &painter, const KoViewConverter &converter, bool forPrint )
{
    if ( ! dynamic_cast<KPrPlaceholderShape *>( shape ) && m_strategy->page()->displayShape( shape ) ) {
        if ( m_animationCache->value(shape, "visibility", true).toBool() ) {
            painter.save();
            QTransform animationTransform = m_animationCache->value(shape, "transform", QTransform()).value<QTransform>();;
            QTransform transform(painter.transform() * shape->absoluteTransformation(&converter));
            if (animationTransform.isScaling()) {
                transform = animationTransform * transform;
            } else {
                transform = transform * animationTransform;
            }

            painter.setTransform(transform);
            // paint shape
            shapeManager()->paintShape( shape, painter, converter, forPrint );
            painter.restore();  // for the transform
        }
    }
}
开发者ID:KDE，项目名称:calligra-history，代码行数:20，代码来源:KPrShapeManagerAnimationStrategy.cpp

示例6: testTransformIdentity

void TransformTest::testTransformIdentity()
{
	// Default QTransform: identity
	QTransform qt;
	QVERIFY(qt.isIdentity());
	QCOMPARE(int(qt.type()), int(QTransform::TxNone));
	
	// Default TemplateTransform: identity
	TemplateTransform t;
	
	// TemplateTransform list initialization, and assignment
	t = { 12, -3, 0.1, 2.0, 3.0 };
	QCOMPARE(t.template_x, 12);
	QCOMPARE(t.template_y, -3);
	QCOMPARE(t.template_scale_x, 2.0);
	QCOMPARE(t.template_scale_y, 3.0);
	QCOMPARE(t.template_rotation, 0.1);
	
	// Now transfer the identity QTransform to the TemplateTransform
	t = TemplateTransform::fromQTransform(qt);
	QCOMPARE(t.template_x, 0);
	QCOMPARE(t.template_y, 0);
	QCOMPARE(t.template_scale_x, 1.0);
	QCOMPARE(t.template_scale_y, 1.0);
	QCOMPARE(t.template_rotation, 0.0);
	
	// Put something different in the QTransform
	qt.translate(4, 8);
	qt.rotate(1);
	qt.scale(2.0, 1.5);
	QVERIFY(qt.isAffine());
	QVERIFY(!qt.isIdentity());
	QVERIFY(qt.isTranslating());
	QVERIFY(qt.isRotating());
	QVERIFY(qt.isScaling());
}
开发者ID:sikmir，项目名称:mapper，代码行数:36，代码来源:transform_t.cpp


注：本文中的QTransform::isScaling方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。