void GradientRenderer::paint(QPainter *p)
{
QPolygonF pts = m_hoverPoints->points();
QGradient g;
if (m_gradientType == Qt::LinearGradientPattern) {
g = QLinearGradient(pts.at(0), pts.at(1));
} else if (m_gradientType == Qt::RadialGradientPattern) {
g = QRadialGradient(pts.at(0), qMin(width(), height()) / 3.0, pts.at(1));
} else {
QLineF l(pts.at(0), pts.at(1));
qreal angle = l.angle(QLineF(0, 0, 1, 0));
if (l.dy() > 0)
angle = 360 - angle;
g = QConicalGradient(pts.at(0), angle);
}
for (int i=0; i<m_stops.size(); ++i)
g.setColorAt(m_stops.at(i).first, m_stops.at(i).second);
g.setSpread(m_spread);
p->setBrush(g);
p->setPen(Qt::NoPen);
p->drawRect(rect());
}
QGradient GradientRangeEditor::gradient() const
{
QGradient g;
switch( gradientType )
{
case QGradient::LinearGradient:
g = QLinearGradient( _startPoint, _endPoint );
break;
case QGradient::RadialGradient:
{
QLineF l( _startPoint, _endPoint );
if( l.length() > 0.5 )
l.setLength( 0.5 - 0.001 );
g = QRadialGradient( l.p1(), 0.5, l.p2() );
break;
}
default:
g = QConicalGradient( _startPoint, angle() );
break;
}
g.setStops( stops );
g.setSpread( spreadType );
return g;
}
void tst_QBrush::operator_eq_eq_data()
{
QTest::addColumn<QBrush>("brush1");
QTest::addColumn<QBrush>("brush2");
QTest::addColumn<bool>("isEqual");
QLinearGradient lg(10, 10, 100, 100);
lg.setColorAt(0, Qt::red);
lg.setColorAt(0.5, Qt::blue);
lg.setColorAt(1, Qt::green);
QTest::newRow("black vs black") << QBrush(Qt::black) << QBrush(Qt::black) << true;
QTest::newRow("black vs blue") << QBrush(Qt::black) << QBrush(Qt::blue) << false;
QTest::newRow("red vs no") << QBrush(Qt::red) << QBrush(Qt::NoBrush) << false;
QTest::newRow("no vs no") << QBrush(Qt::NoBrush) << QBrush(Qt::NoBrush) << true;
QTest::newRow("lg vs same lg") << QBrush(lg) << QBrush(lg) << true;
QTest::newRow("lg vs diff lg") << QBrush(lg) << QBrush(QLinearGradient(QPoint(0, 0), QPoint(1, 1)))
<< false;
QTest::newRow("rad vs con") << QBrush(QRadialGradient(0, 0, 0, 0, 0)) << QBrush(QConicalGradient(0, 0, 0)) << false;
QBrush b1(lg);
QBrush b2(lg);
b1.setTransform(QTransform().scale(2, 2));
QTest::newRow("lg with transform vs same lg") << b1 << b2 << false;
b2.setTransform(QTransform().scale(2, 2));
QTest::newRow("lg w/transform vs same lg w/same transform") << b1 << b2 << true;
}
CircularIndicatorMeterWidget::CircularIndicatorMeterWidget(QString Name, QWidget *parent, QString Source) : MeterWidget(Name, parent, Source)
{
//defaut settings
IndicatorGradient = QConicalGradient(0, 0, 150);
IndicatorGradient.setColorAt(0.0, QColor(255,0,0,180));
IndicatorGradient.setColorAt(0.3, QColor(255,255,0,180));
IndicatorGradient.setColorAt(0.7, QColor(0,255,0,180));
IndicatorGradient.setColorAt(1.0, QColor(0,255,0,180));
}
void tst_QBrush::stream_data()
{
QTest::addColumn<QBrush>("brush");
QLinearGradient lg(10, 10, 100, 100);
lg.setColorAt(0, Qt::red);
lg.setColorAt(0.5, Qt::blue);
lg.setColorAt(1, Qt::green);
QTest::newRow("black") << QBrush(Qt::black);
QTest::newRow("red") << QBrush(Qt::red);
QTest::newRow("no") << QBrush(Qt::NoBrush);
QTest::newRow("lg") << QBrush(lg);
QTest::newRow("rad") << QBrush(QRadialGradient(0, 0, 0, 0, 0));
QTest::newRow("con") << QBrush(QConicalGradient(0, 0, 0));
}
void RenderArea::paintEvent(QPaintEvent *)
{
QPainter painter(this);
painter.setPen(Qt::NoPen);
painter.setRenderHint(QPainter::Antialiasing);
if(currentBrush->style() == Qt::LinearGradientPattern) {
currentBrush = new QBrush(QLinearGradient(0, 0, width(), 60));
} else if(currentBrush->style() == Qt::RadialGradientPattern) {
QRadialGradient radial(width() / 2, 30, width() / 2, width() / 2, 30);
radial.setColorAt(0, Qt::white);
radial.setColorAt(1, Qt::black);
currentBrush = new QBrush(radial);
} else if(currentBrush->style() == Qt::ConicalGradientPattern) {
currentBrush = new QBrush(QConicalGradient(width() / 2, 30, 90));
}
painter.setBrush(*currentBrush);
QPainterPath path;
path.addRect(0, 0, parentWidget()->width(), 60);
painter.drawPath(path);
}
QgsColorWheel::QgsColorWheel( QWidget *parent )
: QgsColorWidget( parent )
, mMargin( 4 )
, mWheelThickness( 18 )
, mClickedPart( QgsColorWheel::None )
, mWheelImage( nullptr )
, mTriangleImage( nullptr )
, mWidgetImage( nullptr )
, mWheelDirty( true )
, mTriangleDirty( true )
{
//create wheel hue brush - only do this once
QConicalGradient wheelGradient = QConicalGradient( 0, 0, 0 );
int wheelStops = 20;
QColor gradColor = QColor::fromHsvF( 1.0, 1.0, 1.0 );
for ( int pos = 0; pos <= wheelStops; ++pos )
{
double relativePos = ( double )pos / wheelStops;
gradColor.setHsvF( relativePos, 1, 1 );
wheelGradient.setColorAt( relativePos, gradColor );
}
mWheelBrush = QBrush( wheelGradient );
}
StyleWidget::StyleWidget(QWidget *parent)
: QWidget(parent)
{
solid = new RenderArea(new QBrush(Qt::SolidPattern));
dense1 = new RenderArea(new QBrush(Qt::Dense1Pattern));
dense2 = new RenderArea(new QBrush(Qt::Dense2Pattern));
dense3 = new RenderArea(new QBrush(Qt::Dense3Pattern));
dense4 = new RenderArea(new QBrush(Qt::Dense4Pattern));
dense5 = new RenderArea(new QBrush(Qt::Dense5Pattern));
dense6 = new RenderArea(new QBrush(Qt::Dense6Pattern));
dense7 = new RenderArea(new QBrush(Qt::Dense7Pattern));
no = new RenderArea(new QBrush(Qt::NoBrush));
hor = new RenderArea(new QBrush(Qt::HorPattern));
ver = new RenderArea(new QBrush(Qt::VerPattern));
cross = new RenderArea(new QBrush(Qt::CrossPattern));
bdiag = new RenderArea(new QBrush(Qt::BDiagPattern));
fdiag = new RenderArea(new QBrush(Qt::FDiagPattern));
diagCross = new RenderArea(new QBrush(Qt::DiagCrossPattern));
linear = new RenderArea(new QBrush(QLinearGradient()));
radial = new RenderArea(new QBrush(QRadialGradient()));
conical = new RenderArea(new QBrush(QConicalGradient()));
texture = new RenderArea(new QBrush(QPixmap("qt-logo.png")));
solidLabel = new QLabel("Qt::SolidPattern");
dense1Label = new QLabel("Qt::Dense1Pattern");
dense2Label = new QLabel("Qt::Dense2Pattern");
dense3Label = new QLabel("Qt::Dense3Pattern");
dense4Label = new QLabel("Qt::Dense4Pattern");
dense5Label = new QLabel("Qt::Dense5Pattern");
dense6Label = new QLabel("Qt::Dense6Pattern");
dense7Label = new QLabel("Qt::Dense7Pattern");
noLabel = new QLabel("Qt::NoPattern");
horLabel = new QLabel("Qt::HorPattern");
verLabel = new QLabel("Qt::VerPattern");
crossLabel = new QLabel("Qt::CrossPattern");
bdiagLabel = new QLabel("Qt::BDiagPattern");
fdiagLabel = new QLabel("Qt::FDiagPattern");
diagCrossLabel = new QLabel("Qt::DiagCrossPattern");
linearLabel = new QLabel("Qt::LinearGradientPattern");
radialLabel = new QLabel("Qt::RadialGradientPattern");
conicalLabel = new QLabel("Qt::ConicalGradientPattern");
textureLabel = new QLabel("Qt::TexturePattern");
QGridLayout *layout = new QGridLayout;
layout->addWidget(solid, 0, 0);
layout->addWidget(dense1, 0, 1);
layout->addWidget(dense2, 0, 2);
layout->addWidget(solidLabel, 1, 0);
layout->addWidget(dense1Label, 1, 1);
layout->addWidget(dense2Label, 1, 2);
layout->addWidget(dense3, 2, 0 );
layout->addWidget(dense4, 2, 1);
layout->addWidget(dense5, 2, 2);
layout->addWidget(dense3Label, 3, 0);
layout->addWidget(dense4Label, 3, 1);
layout->addWidget(dense5Label, 3, 2);
layout->addWidget(dense6, 4, 0);
layout->addWidget(dense7, 4, 1);
layout->addWidget(no, 4, 2);
layout->addWidget(dense6Label, 5, 0);
layout->addWidget(dense7Label, 5, 1);
layout->addWidget(noLabel, 5, 2);
layout->addWidget(hor, 6, 0);
layout->addWidget(ver, 6, 1);
layout->addWidget(cross, 6, 2);
layout->addWidget(horLabel, 7, 0);
layout->addWidget(verLabel, 7, 1);
layout->addWidget(crossLabel, 7, 2);
layout->addWidget(bdiag, 8, 0);
layout->addWidget(fdiag, 8, 1);
layout->addWidget(diagCross, 8, 2);
layout->addWidget(bdiagLabel, 9, 0);
layout->addWidget(fdiagLabel, 9, 1);
layout->addWidget(diagCrossLabel, 9, 2);
layout->addWidget(linear, 10, 0);
layout->addWidget(radial, 10, 1);
layout->addWidget(conical, 10, 2);
layout->addWidget(linearLabel, 11, 0);
layout->addWidget(radialLabel, 11, 1);
layout->addWidget(conicalLabel, 11, 2);
layout->addWidget(texture, 12, 0, 1, 3);
layout->addWidget(textureLabel, 13, 0, 1, 3);
setLayout(layout);
QPalette newPalette = palette();
newPalette.setColor(QPalette::Window, Qt::white);
setPalette(newPalette);
setWindowTitle(tr("Brush Styles"));
resize(430, 605);
}
