WaitingDialog::WaitingDialog(QWidget *parent) :
QDialog(parent),
ui(new Ui::WaitingDialog)
{
ui->setupUi(this);
m_rot = 0;
QGraphicsScene* scene = new QGraphicsScene();
ui->graphicsView->setScene(scene);
QRect rect(0,0,50,50);
m_startPoint = QPoint(0,ui->graphicsView->rect().size().height()/2);
m_endPoint = QPoint(ui->graphicsView->rect().size().width(),ui->graphicsView->rect().size().height()/2);
QRadialGradient rg = QRadialGradient(10,10,45.0);
QColor mcol(Qt::blue);
mcol.setAlpha(255);
rg.setColorAt(0.0,Qt::white);
mcol.setBlue(mcol.blue()-15);
rg.setColorAt(0.5,mcol);
mcol.setBlue(mcol.blue()+15);
rg.setColorAt(1.0,mcol);
QPen pen(mcol);
QPixmap pm(rect.size()+QSize(1,1));
pm.fill(Qt::transparent);
QPainter p(&pm);
p.setBackgroundMode(Qt::TransparentMode);
p.setBrush(rg);
p.setPen(pen);
p.drawEllipse(rect);
m_ellipse = new MyItem(pm);
m_ellipse->setPos(m_startPoint);
ui->graphicsView->scene()->addItem(m_ellipse);
m_anim = new QPropertyAnimation(m_ellipse,"pos");
connect(m_anim,SIGNAL(finished()),this,SLOT(animFinished()));
m_anim->setEasingCurve(QEasingCurve::OutBounce);
m_anim->setStartValue(m_startPoint);
m_anim->setEndValue(m_endPoint);
m_anim->setDuration(2000);
m_anim->setLoopCount(1);
m_anim->start();
m_timer = new QTimer(this);
connect(m_timer,SIGNAL(timeout()),this,SLOT(timeout()));
m_timer->setInterval(100);
#if defined(Q_OS_SYMBIAN)
this->showMaximized();
#else
this->show();
#endif
m_timer->start();
}
void EditorMagnifierItem::updateMask()
{
QRectF current = getRect();
QSize box = QSize( current.width(), current.width() );
// reupdate our mask
if (m_imgMask.size() != box)
{
int radius = box.width() / 2;
int ring = radius - 10;
m_imgMask = QPixmap(box);
m_imgMask.fill(Qt::transparent);
QRadialGradient g;
g.setCenter(radius, radius);
g.setFocalPoint(radius, radius);
g.setRadius(radius);
g.setColorAt( 1.0, QColor(255, 255, 255, 0) );
g.setColorAt( 0.5, QColor(128, 128, 128, 255) );
QPainter mask(&m_imgMask);
mask.setRenderHint(QPainter::Antialiasing);
mask.setCompositionMode(QPainter::CompositionMode_Source);
mask.setBrush(g);
mask.setPen(Qt::NoPen);
mask.drawRect( m_imgMask.rect() );
mask.setBrush( QColor(Qt::transparent) );
mask.drawEllipse(g.center(), ring, ring);
mask.end();
}
}
int MailTreeDelegate::DrawMessageActionIcons (QPainter *painter,
const QStyleOptionViewItem& option, const QModelIndex& index, int height) const
{
if (Mode_ != MailListMode::Normal)
return 0;
if (option.state & QStyle::State_MouseOver)
return 0;
const auto& actionsVar = index.data (MailModel::MailRole::MessageActions);
if (actionsVar.isNull ())
return 0;
auto actionInfos = actionsVar.value<QList<MessageListActionInfo>> ();
if (actionInfos.isEmpty ())
return 0;
std::reverse (actionInfos.begin (), actionInfos.end ());
if (ActionsHintsBalls_)
height -= Padding * 2;
painter->save ();
painter->setRenderHint (QPainter::Antialiasing);
painter->setPen (Qt::NoPen);
auto rect = option.rect;
rect.setLeft (rect.right () - height - Padding);
rect.setSize ({ height, height });
rect.moveTop (rect.top () + Padding);
for (const auto& item : actionInfos)
{
if (item.Flags_ & MessageListActionFlag::AlwaysPresent)
continue;
if (ActionsHintsBalls_)
{
QRadialGradient gradient;
gradient.setCoordinateMode (QGradient::ObjectBoundingMode);
gradient.setFocalPoint ({ 0.3, 0.3 });
gradient.setCenter ({ 0.5, 0.5 });
gradient.setRadius (0.5);
gradient.setColorAt (0, item.ReprColor_.lighter (200));
gradient.setColorAt (1, item.ReprColor_.darker (120));
painter->setBrush (gradient);
painter->drawEllipse (rect);
}
else
item.Icon_.paint (painter, rect);
rect.moveLeft (rect.left () - height - Padding);
}
painter->restore ();
return option.rect.right () - rect.right ();
}
void PreviewWidget::drawShadow(QPainter &painter, QRectF rect)
{
// Shadow width
int width = qBound(4, int(qMax(rect.height(), rect.width())) / 100, 7);
painter.save();
painter.setClipRect(rect.adjusted(0, 0, width, width));
QColor lightColor = this->palette().color(QPalette::Background);
QColor darkColor = lightColor.darker(160);
QRectF shadowRect = rect.adjusted(0, 0, width, width);
QLinearGradient lg;
lg.setColorAt(0.0, darkColor);
lg.setColorAt(1.0, lightColor);
QRadialGradient rg;
rg.setColorAt(0, darkColor);
rg.setColorAt(1, lightColor);
rg.setRadius(width);
// Right
lg.setStart(QPointF(rect.right(), rect.center().y()));
lg.setFinalStop(QPointF(shadowRect.right(), rect.center().y()));
painter.fillRect(rect.right(), rect.top() + width, width, rect.height() - width, lg);
// Bottom
lg.setStart(rect.center().x(), rect.bottom());
lg.setFinalStop(rect.center().x(), rect.bottom() + width);
painter.fillRect(rect.left() + width, rect.bottom(), rect.width() - width, width, lg);
//TopRight
QPointF p;
p = rect.bottomRight();
rg.setCenter(p);
rg.setFocalPoint(p);
painter.fillRect(rect.right(), rect.bottom(), width, width, rg);
// BottomRight
p = rect.topRight();
p.ry() += width;
rg.setCenter(p);
rg.setFocalPoint(p);
painter.fillRect(rect.right(), rect.top(), width, width, rg);
//BottomLeft
p = rect.bottomLeft();
p.rx() += width;
rg.setCenter(p);
rg.setFocalPoint(p);
painter.fillRect(rect.left(), rect.bottom(), width, width, rg);
painter.restore();
}
//!
//! Paints the graphics item into a graphics view.
//!
//! \param painter The object to use for painting.
//! \param option Style options for painting the graphics item.
//! \param widget The widget into which to paint the graphics item.
//!
void PinGraphicsItem::paint ( QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget /* = 0 */ )
{
const QColor penColor (30, 30, 30);
QRadialGradient radialGradient (rect().center(), 5);
radialGradient.setColorAt(1, m_color.darker(200));
radialGradient.setColorAt(0, m_color);
// set the brush
QBrush brush;
if (isEnabled())
if (m_hovered && m_clicked)
radialGradient.setColorAt(0.5, m_color.lighter(100));
else if (m_hovered || m_clicked)
radialGradient.setColorAt(0.5, m_color.lighter(100));
else
radialGradient.setColorAt(0.5, m_color.darker(150));
else
brush = Qt::NoBrush;
// paint the pin
brush = QBrush(radialGradient);
painter->setRenderHint(QPainter::Antialiasing);
painter->setPen(QPen(QBrush(penColor), 1));
painter->setBrush(brush);
painter->drawEllipse(rect().center(), 5, 5);
// check if the parameter the pin represents is a parameter group
//if (m_abstractParameter && m_abstractParameter->isGroup()) {
// painter->setPen(QPen(penColor));
// painter->setBrush(QBrush(QColor(Qt::black)));
// painter->setRenderHint(QPainter::Antialiasing);
// if (m_abstractParameter->getName().isEmpty()) {
// // draw two dots for parameter roots
// painter->drawEllipse(rect().center() + QPointF(-2, 0.5), 1, 1);
// painter->drawEllipse(rect().center() + QPointF(2, 0.5), 1, 1);
// } else
// // draw one dot for other parameter groups
// painter->drawEllipse(rect().center(), 1, 1);
//}
if (m_isGroup) {
painter->setPen(QPen(penColor));
painter->setBrush(QBrush(QColor(Qt::black)));
painter->setRenderHint(QPainter::Antialiasing);
if (m_isRootGroup) {
// draw two dots for parameter roots
painter->drawEllipse(rect().center() + QPointF(-2, 0.5), 1, 1);
painter->drawEllipse(rect().center() + QPointF(2, 0.5), 1, 1);
} else
// draw one dot for other parameter groups
painter->drawEllipse(rect().center(), 1, 1);
}
}
void DashBar::repaint(QPainter &painter){
float v;
float min = qMin(value1,value2);
float max = qMax(value1,value2);
int size = orientation == Qt::Horizontal? width-10 : height-10;
QRadialGradient gradient;
QPen pen(Qt::black);
pen.setWidth(1);
painter.save();
painter.setRenderHint(QPainter::Antialiasing);
painter.translate(x,y);
gradient = QRadialGradient(QPointF(0,0), qSqrt(width*width+height*height)*2, QPointF(0,0));
gradient.setColorAt(0, QColor(224,224,224));
gradient.setColorAt(1, QColor(28,28,28));
painter.setPen(pen);
painter.setBrush(QBrush(gradient));
painter.drawRect(0,0,width, height);
gradient = QRadialGradient(QPointF(width,height), qSqrt(width*width+height*height)*2, QPointF(width,height));
gradient.setColorAt(0, QColor(88,88,88));
gradient.setColorAt(1, QColor(28,28,28));
painter.setPen(pen);
painter.setBrush(QBrush(gradient));
painter.drawRect(5,5,width-10,height-10);
painter.setBrush(Qt::white);
painter.setPen(Qt::white);
if(value>max)value = max;
if(value<min)value = min;
v = (max-value)/(max-min)*size;
for(int i=0; i<size; i+=4){
if(i>size*0.4f){
painter.setPen(i>=v || isSelected? Qt::green : QColor(Qt::green).darker());
}else if(i>=size*0.1f && i<=size*0.4f){
painter.setPen(i>=v || isSelected? Qt::yellow : QColor(Qt::yellow).darker());
}else{
painter.setPen(i>=v || isSelected? Qt::red : QColor(Qt::red).darker());
}
if(orientation == Qt::Horizontal){ //Orizzontale
painter.drawLine(width-6-i,6,width-6-i,height-6); //Linee verticali
}else{
painter.drawLine(6,6+i,width-6,6+i);
}
}
painter.restore();
}
void Highlight::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
QColor pen_color = pen.color();
painter->setPen(pen);
if(time < total_time ){ //don't want to keep adding them past animation length
int expected_num_rings = (int)ceil(frequency * time);
if( expected_num_rings > rings.length()){
rings.append(time);
}
//velocity= 200.0 - (time*total_time*2.0);//pretty cool
//velocity= 200.0*(1.0-done_ratio);//pretty cool, about the same
//frequency = 3.0*(1.0-done_ratio);//pretty cool
for(int i=0; i<rings.length(); i++){
//qreal dist = diameter + ( velocity * (time - rings.at(i)));
qreal t = (time - rings.at(i));
qreal dist = diameter + ( velocity * t ) + (0.5 * -5.0 * t*t);
//qDebug() << "dist:" << dist << " outerDiameter:" << outerDiameter;
QRectF s(x()-dist/2.0, y()-dist/2.0,dist,dist);
QRectF r = mapRectFromScene(x()-dist/2.0, y()-dist/2.0,dist,dist);
pen.setWidth(20.0+50.0* dist/outerDiameter);
QRadialGradient radialGrad;
radialGrad.setCenter(r.center());
radialGrad.setFocalPoint(r.center());
radialGrad.setCenterRadius(r.width()/2.0+pen.widthF()/2.0);
radialGrad.setFocalRadius(r.width()/2.0-pen.widthF()/2.0);
/* not entirely sure I get it, but I think focal radius
* needs to be either the center of the pen or its inner edge
* while center radius is the outer edge.
*/
QColor green(0,255,0,255);
QColor yellow(255,255,0,255);
/*
pen_color.setAlphaF(1.0-(dist/outerDiameter)); //surface waves don't inverse square
*/
green.setAlphaF(1.0-(dist/outerDiameter));
yellow.setAlphaF((1.0-(dist/outerDiameter)));
radialGrad.setColorAt(.0, yellow );
radialGrad.setColorAt( .5, green );
radialGrad.setColorAt(1, yellow );
brush = QBrush(radialGrad);
pen.setBrush(brush);
painter->setPen(pen);
painter->drawEllipse(r);
}
}
}
void BrushEngine::paint(const QPointF& point, float pressure) {
QPainter painter(eraser > 50 ? canvasItem->getPixmap() : canvasBuffer->getPixmap());
painter.setRenderHint(QPainter::Antialiasing, true);
painter.setPen(Qt::NoPen);
if (eraser > 50) {
painter.setCompositionMode(QPainter::CompositionMode_DestinationOut);
}
color.setAlpha(qRound(255 * flow / 100.0));
QColor pressureColor = color;
pressureColor.setAlpha(qRound(color.alpha() * pressure));
QColor alphaColor = color;
alphaColor.setAlpha(0);
QRadialGradient radialGradient;
radialGradient.setRadius(size / 2.0);
radialGradient.setColorAt(0, pressureColor);
radialGradient.setColorAt(1, alphaColor);
radialGradient.setColorAt(hardness / 100.0, pressureColor);
painter.setBrush(QBrush(radialGradient));
if (startPoint.isNull()) {
startPoint = QPointF(point);
lastPoint = QPointF(point);
topleft = QPoint(0, 0);
bottomright = QPoint(canvasBuffer->getPixmap()->width(), canvasBuffer->getPixmap()->height());
paintDab(point, painter);
} else {
qreal length = qSqrt(qPow(lastPoint.x() - point.x(), 2) + qPow(lastPoint.y() - point.y(), 2));
qreal delta = size * spacing / 2.0 / 100.0;
if (length >= delta) {
int dabs = qRound(length / delta);
qreal angle = qAtan2(point.x() - lastPoint.x(), point.y() - lastPoint.y());
qreal deltaX = delta * qSin(angle);
qreal deltaY = delta * qCos(angle);
QPointF betweenPoint;
for (int i = 1; i <= dabs; i++) {
qreal x = lastPoint.x() + deltaX * i +
(10000 - qrand() % 20000) / 10000.0 * size * jitter / 100;
qreal y = lastPoint.y() + deltaY * i +
(10000 - qrand() % 20000) / 10000.0 * size * jitter / 100;
betweenPoint = QPointF(x, y);
paintDab(betweenPoint, painter);
}
lastPoint = betweenPoint;
}
}
}
void PainterWidget::updateBrush()
{
QRadialGradient g;
g.setCenter(brush_size/2, brush_size/2);
g.setFocalPoint(brush_size/2, brush_size/2);
g.setRadius(brush_size/2);
g.setColorAt(1.0, Qt::black);
g.setColorAt(0, QColor(100,100,100));
QImage mask(brush_size, brush_size,QImage::Format_RGB32);
mask.fill(qRgb(0,0,0));
QPainter painter2(&mask);
painter2.fillRect(mask.rect(), g);
painter2.end();
soft_brush = QImage(brush_size, brush_size,QImage::Format_RGB32);
soft_brush.fill(brush_color.rgb());
soft_brush.setAlphaChannel(mask);
}
void ConvertDialogTest::convert_filter_gradient()
{
EffectsScrollArea *effectsScrollArea = convertDialog->effectsScrollArea;
QGroupBox *filterGroupBox = effectsScrollArea->filterGroupBox;
filterGroupBox->setChecked(true);
QRadioButton *filterGradientRadioButton = effectsScrollArea->filterGradientRadioButton;
filterGradientRadioButton->setChecked(true);
QRadialGradient gradient = QRadialGradient(QPoint(1, 2), 2.5);
gradient.setColorAt(0.0, Qt::green);
gradient.setColorAt(1.0, Qt::red);
BrushFrame *filterBrushFrame = effectsScrollArea->filterBrushFrame;
filterBrushFrame->setBrush(gradient);
convertDialog->convert();
SharedInformation *sharedInfo = convertDialog->sharedInfo;
EffectsConfiguration conf = sharedInfo->effectsConfiguration();
QCOMPARE(conf.getFilterType(), int(Gradient));
QCOMPARE(conf.getFilterBrush(), QBrush(gradient));
}
KoShape * KoEllipseShapeFactory::createDefaultShape() const
{
KoEllipseShape * ellipse = new KoEllipseShape();
ellipse->setBorder( new KoLineBorder( 1.0 ) );
ellipse->setShapeId( KoPathShapeId );
QRadialGradient * gradient = new QRadialGradient( QPointF(50,50), 50.0, QPointF(25,25) );
gradient->setColorAt( 0.0, Qt::white );
gradient->setColorAt( 1.0, Qt::green );
ellipse->setBackground( new KoGradientBackground( gradient ) );
return ellipse;
}
void Point::paint ( QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget * /*widget*/ )
{
QRadialGradient gradient ( 0.0, 0.0, _radius );
// If we are selected, use a lighter color.
if ( option->state & QStyle::State_Sunken )
{
gradient.setColorAt ( 0, QColor ( Qt::yellow ).light ( 120 ) );
gradient.setColorAt ( 1, QColor ( Qt::darkYellow ).light ( 120 ) );
painter->setPen ( QPen ( Qt::red, 0 ) );
}
else
{
gradient.setColorAt ( 0, Qt::yellow );
gradient.setColorAt ( 1, Qt::darkYellow );
painter->setPen ( QPen ( Qt::black, 0 ) );
}
painter->setBrush ( gradient );
const double diameter ( _radius * 2 );
painter->drawEllipse ( -_radius, -_radius, diameter, diameter);
}
KoShape *EllipseShapeFactory::createDefaultShape(KoDocumentResourceManager *) const
{
EllipseShape *ellipse = new EllipseShape();
ellipse->setStroke(new KoShapeStroke(1.0));
ellipse->setShapeId(KoPathShapeId);
QRadialGradient *gradient = new QRadialGradient(QPointF(0.5,0.5), 0.5, QPointF(0.25,0.25));
gradient->setCoordinateMode(QGradient::ObjectBoundingMode);
gradient->setColorAt(0.0, Qt::white);
gradient->setColorAt(1.0, Qt::green);
ellipse->setBackground(new KoGradientBackground(gradient));
return ellipse;
}
SpaceObjectSun::SpaceObjectSun(int x, int y)
: SpaceObject(x, y, SO_TYPE_SUN)
{
mPixmap->fill(Qt::transparent);
QPainter p(mPixmap);
QRadialGradient rd;
rd.setCenter(40, 40);
rd.setRadius(40);
rd.setFocalPoint(40, 40);
rd.setColorAt(0, QColor(0xFF, 0xFF, 0xDD, 0xFF));
rd.setColorAt(0.45, QColor(0xFF, 0xFF, 0xDD, 0xFF));
rd.setColorAt(0.55, QColor(0xFF, 0xFF, 0x33, 0xFF));
rd.setColorAt(0.6, QColor("#FF9900"));
rd.setColorAt(1, QColor( 0, 0, 0, 0x00 ));
p.setPen(Qt::NoPen);
p.setBrush( rd );
p.drawEllipse(0, 0, 80, 80);
}
void dot::paint ( QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget )
{
Q_UNUSED ( widget );
painter->setPen ( Qt::NoPen );
painter->setBrush ( Qt::darkGray );
painter->drawEllipse ( -1, -1, 5, 5 );
QRadialGradient gradient ( -3, -3, 10 );
if( this->isSelected() )
{
if ( option->state & QStyle::State_Sunken )
{
gradient.setCenter ( 3, 3 );
gradient.setFocalPoint ( 3, 3 );
gradient.setColorAt ( 1, QColor ( Qt::green ).light ( 100 ) );
gradient.setColorAt ( 0, QColor ( Qt::darkGreen ).light ( 100 ) );
}
else
{
gradient.setColorAt ( 0, Qt::green );
gradient.setColorAt ( 1, Qt::darkGreen );
}
}
else
{
if ( option->state & QStyle::State_Sunken )
{
gradient.setCenter ( 3, 3 );
gradient.setFocalPoint ( 3, 3 );
gradient.setColorAt ( 1, QColor ( Qt::yellow ).light ( 100 ) );
gradient.setColorAt ( 0, QColor ( Qt::darkYellow ).light ( 100 ) );
}
else
{
gradient.setColorAt ( 0, Qt::yellow );
gradient.setColorAt ( 1, Qt::darkYellow );
}
}
painter->setBrush ( gradient );
painter->setPen ( QPen ( Qt::black, 0 ) );
painter->drawEllipse ( -2, -2, 6, 6 );
painter->scale ( 1.0,-1.0 );
painter->setFont(QFont("Arial", 14));
painter->drawText(0,10,message);
}
QRadialGradient* getRadialGradient(const CLRadialGradient* radial, const CLBoundingBox* bounds, const CLRenderResolver* resolver)
{
double cx = bounds->getPosition().getX() + radial->getCenterX().getAbsoluteValue() + radial->getCenterX().getRelativeValue() / 100.0 * bounds->getDimensions().getWidth();
double cy = bounds->getPosition().getY() + radial->getCenterY().getAbsoluteValue() + radial->getCenterY().getRelativeValue() / 100.0 * bounds->getDimensions().getHeight();
double fx = bounds->getPosition().getX() + radial->getFocalPointX().getAbsoluteValue() + radial->getFocalPointX().getRelativeValue() / 100.0 * bounds->getDimensions().getWidth();
double fy = bounds->getPosition().getY() + radial->getFocalPointY().getAbsoluteValue() + radial->getFocalPointY().getRelativeValue() / 100.0 * bounds->getDimensions().getHeight();
double r = radial->getRadius().getAbsoluteValue() + radial->getRadius().getRelativeValue() / 100.0 * bounds->getDimensions().getWidth();
QRadialGradient* result = new QRadialGradient(cx, cy, r, fx, fy);
switch (radial->getSpreadMethod())
{
case CLGradientBase::REFLECT:
result->setSpread(QGradient::ReflectSpread);
break;
case CLGradientBase::REPEAT:
result->setSpread(QGradient::RepeatSpread);
break;
case CLGradientBase::PAD:
result->setSpread(QGradient::PadSpread);
break;
default:
break;
}
for (size_t i = 0; i < radial->getNumGradientStops(); ++i)
{
const CLGradientStop* stop = radial->getGradientStop(i);
result->setColorAt(stop->getOffset().getAbsoluteValue() + stop->getOffset().getRelativeValue() / 100.0, getColor(stop->getStopColor(), resolver));
}
return result;
}
void LedIndicator::paintEvent(QPaintEvent *event) {
qreal realSize = qMin(width(), height());
QRadialGradient gradient;
QPainter painter(this);
QPen pen(Qt::black);
pen.setWidth(1);
painter.setRenderHint(QPainter::Antialiasing);
painter.translate(width()/2, height()/2);
painter.scale(realSize/scaledSize, realSize/scaledSize);
gradient = QRadialGradient (QPointF(-500,-500), 1500, QPointF(-500,-500));
gradient.setColorAt(0, QColor(224,224,224));
gradient.setColorAt(1, QColor(28,28,28));
painter.setPen(pen);
painter.setBrush(QBrush(gradient));
painter.drawEllipse(QPointF(0,0), 500, 500);
gradient = QRadialGradient (QPointF(500,500), 1500, QPointF(500,500));
gradient.setColorAt(0, QColor(224,224,224));
gradient.setColorAt(1, QColor(28,28,28));
painter.setPen(pen);
painter.setBrush(QBrush(gradient));
painter.drawEllipse(QPointF(0,0), 450, 450);
painter.setPen(pen);
if( isDown() ) {
gradient = QRadialGradient (QPointF(-500,-500), 1500, QPointF(-500,-500));
gradient.setColorAt(0, onColor1);
gradient.setColorAt(1, onColor2);
} else {
gradient = QRadialGradient (QPointF(500,500), 1500, QPointF(500,500));
gradient.setColorAt(0, offColor1);
gradient.setColorAt(1, offColor2);
}
painter.setBrush(gradient);
painter.drawEllipse(QPointF(0,0), 400, 400);
}
QPixmap PostEffect::generateFuzzyRect(const QSize& size, const QColor& color, int radius)
{
QPixmap pix(size);
const QColor transparent(0, 0, 0, 0);
pix.fill(transparent);
QPainter painter(&pix);
painter.setRenderHint(QPainter::Antialiasing, true);
// Fill middle
painter.fillRect(pix.rect().adjusted(radius, radius, -radius, -radius), color);
// Corners
QRadialGradient gradient;
gradient.setColorAt(0, color);
gradient.setColorAt(1, transparent);
gradient.setRadius(radius);
QPoint center;
// Top Left
center = QPoint(radius, radius);
gradient.setCenter(center);
gradient.setFocalPoint(center);
painter.fillRect(0, 0, radius, radius, gradient);
// Top right
center = QPoint(size.width() - radius, radius);
gradient.setCenter(center);
gradient.setFocalPoint(center);
painter.fillRect(center.x(), 0, radius, radius, gradient);
// Bottom left
center = QPoint(radius, size.height() - radius);
gradient.setCenter(center);
gradient.setFocalPoint(center);
painter.fillRect(0, center.y(), radius, radius, gradient);
// Bottom right
center = QPoint(size.width() - radius, size.height() - radius);
gradient.setCenter(center);
gradient.setFocalPoint(center);
painter.fillRect(center.x(), center.y(), radius, radius, gradient);
// Borders
QLinearGradient linearGradient;
linearGradient.setColorAt(0, color);
linearGradient.setColorAt(1, transparent);
// Top
linearGradient.setStart(0, radius);
linearGradient.setFinalStop(0, 0);
painter.fillRect(radius, 0, size.width() - 2 * radius, radius, linearGradient);
// Bottom
linearGradient.setStart(0, size.height() - radius);
linearGradient.setFinalStop( 0, size.height() );
painter.fillRect(radius, int( linearGradient.start().y() ), size.width() - 2 * radius, radius, linearGradient);
// Left
linearGradient.setStart(radius, 0);
linearGradient.setFinalStop(0, 0);
painter.fillRect(0, radius, radius, size.height() - 2 * radius, linearGradient);
// Right
linearGradient.setStart(size.width() - radius, 0);
linearGradient.setFinalStop(size.width(), 0);
painter.fillRect(int( linearGradient.start().x() ), radius, radius, size.height() - 2 * radius, linearGradient);
return pix;
}
void LightMaps::paintEvent(QPaintEvent *event)
{
QPainter p;
p.begin(this);
m_normalMap->render(&p, event->rect());
p.setPen(Qt::black);
p.drawText(rect(), Qt::AlignBottom | Qt::TextWordWrap,
"Map data CCBYSA 2009 OpenStreetMap.org contributors");
p.end();
if (zoomed) {
int dim = qMin(width(), height());
int magnifierSize = qMin(MAX_MAGNIFIER, dim * 2 / 3);
int radius = magnifierSize / 2;
int ring = radius - 15;
QSize box = QSize(magnifierSize, magnifierSize);
// reupdate our mask
if (maskPixmap.size() != box) {
maskPixmap = QPixmap(box);
maskPixmap.fill(Qt::transparent);
QRadialGradient g;
g.setCenter(radius, radius);
g.setFocalPoint(radius, radius);
g.setRadius(radius);
g.setColorAt(1.0, QColor(255, 255, 255, 0));
g.setColorAt(0.5, QColor(128, 128, 128, 255));
QPainter mask(&maskPixmap);
mask.setRenderHint(QPainter::Antialiasing);
mask.setCompositionMode(QPainter::CompositionMode_Source);
mask.setBrush(g);
mask.setPen(Qt::NoPen);
mask.drawRect(maskPixmap.rect());
mask.setBrush(QColor(Qt::transparent));
mask.drawEllipse(g.center(), ring, ring);
mask.end();
}
QPoint center = dragPos - QPoint(0, radius);
center = center + QPoint(0, radius / 2);
QPoint corner = center - QPoint(radius, radius);
QPoint xy = center * 2 - QPoint(radius, radius);
// only set the dimension to the magnified portion
if (zoomPixmap.size() != box) {
zoomPixmap = QPixmap(box);
zoomPixmap.fill(Qt::lightGray);
}
if (true) {
QPainter p(&zoomPixmap);
p.translate(-xy);
m_largeMap->render(&p, QRect(xy, box));
p.end();
}
QPainterPath clipPath;
clipPath.addEllipse(center, ring, ring);
QPainter p(this);
p.setRenderHint(QPainter::Antialiasing);
p.setClipPath(clipPath);
p.drawPixmap(corner, zoomPixmap);
p.setClipping(false);
p.drawPixmap(corner, maskPixmap);
p.setPen(Qt::gray);
p.drawPath(clipPath);
}
if (invert) {
QPainter p(this);
p.setCompositionMode(QPainter::CompositionMode_Difference);
p.fillRect(event->rect(), Qt::white);
p.end();
}
}
void AbstractDiagram::paintMarker( QPainter* painter,
const MarkerAttributes& markerAttributes,
const QBrush& brush,
const QPen& pen,
const QPointF& pos,
const QSizeF& maSize )
{
const QPen oldPen( painter->pen() );
// Pen is used to paint 4Pixels - 1 Pixel - Ring and FastCross types.
// make sure to use the brush color - see above in those cases.
const bool isFourPixels = (markerAttributes.markerStyle() == MarkerAttributes::Marker4Pixels);
if( isFourPixels || (markerAttributes.markerStyle() == MarkerAttributes::Marker1Pixel) ){
// for high-performance point charts with tiny point markers:
painter->setPen( PrintingParameters::scalePen( QPen( brush.color().light() ) ) );
if( isFourPixels ){
const qreal x = pos.x();
const qreal y = pos.y();
painter->drawLine( QPointF(x-1.0,y-1.0),
QPointF(x+1.0,y-1.0) );
painter->drawLine( QPointF(x-1.0,y),
QPointF(x+1.0,y) );
painter->drawLine( QPointF(x-1.0,y+1.0),
QPointF(x+1.0,y+1.0) );
}
painter->drawPoint( pos );
}else{
const PainterSaver painterSaver( painter );
// we only a solid line surrounding the markers
QPen painterPen( pen );
painterPen.setStyle( Qt::SolidLine );
painter->setPen( PrintingParameters::scalePen( painterPen ) );
painter->setBrush( brush );
painter->setRenderHint ( QPainter::Antialiasing );
painter->translate( pos );
switch ( markerAttributes.markerStyle() ) {
case MarkerAttributes::MarkerCircle:
{
if ( markerAttributes.threeD() ) {
QRadialGradient grad;
grad.setCoordinateMode( QGradient::ObjectBoundingMode );
QColor drawColor = brush.color();
grad.setCenter( 0.5, 0.5 );
grad.setRadius( 1.0 );
grad.setFocalPoint( 0.35, 0.35 );
grad.setColorAt( 0.00, drawColor.lighter( 150 ) );
grad.setColorAt( 0.20, drawColor );
grad.setColorAt( 0.50, drawColor.darker( 150 ) );
grad.setColorAt( 0.75, drawColor.darker( 200 ) );
grad.setColorAt( 0.95, drawColor.darker( 250 ) );
grad.setColorAt( 1.00, drawColor.darker( 200 ) );
QBrush newBrush( grad );
newBrush.setMatrix( brush.matrix() );
painter->setBrush( newBrush );
}
painter->drawEllipse( QRectF( 0 - maSize.height()/2, 0 - maSize.width()/2,
maSize.height(), maSize.width()) );
}
break;
case MarkerAttributes::MarkerSquare:
{
QRectF rect( 0 - maSize.width()/2, 0 - maSize.height()/2,
maSize.width(), maSize.height() );
painter->drawRect( rect );
break;
}
case MarkerAttributes::MarkerDiamond:
{
QVector <QPointF > diamondPoints;
QPointF top, left, bottom, right;
top = QPointF( 0, 0 - maSize.height()/2 );
left = QPointF( 0 - maSize.width()/2, 0 );
bottom = QPointF( 0, maSize.height()/2 );
right = QPointF( maSize.width()/2, 0 );
diamondPoints << top << left << bottom << right;
painter->drawPolygon( diamondPoints );
break;
}
// both handled on top of the method:
case MarkerAttributes::Marker1Pixel:
case MarkerAttributes::Marker4Pixels:
break;
case MarkerAttributes::MarkerRing:
{
painter->setPen( PrintingParameters::scalePen( QPen( brush.color() ) ) );
painter->setBrush( Qt::NoBrush );
painter->drawEllipse( QRectF( 0 - maSize.height()/2, 0 - maSize.width()/2,
maSize.height(), maSize.width()) );
break;
}
case MarkerAttributes::MarkerCross:
{
// Note: Markers can have outline,
// so just drawing two rects is NOT the solution here!
const qreal w02 = maSize.width() * 0.2;
const qreal w05 = maSize.width() * 0.5;
const qreal h02 = maSize.height()* 0.2;
const qreal h05 = maSize.height()* 0.5;
QVector <QPointF > crossPoints;
QPointF p[12];
p[ 0] = QPointF( -w02, -h05 );
p[ 1] = QPointF( w02, -h05 );
p[ 2] = QPointF( w02, -h02 );
p[ 3] = QPointF( w05, -h02 );
p[ 4] = QPointF( w05, h02 );
p[ 5] = QPointF( w02, h02 );
p[ 6] = QPointF( w02, h05 );
p[ 7] = QPointF( -w02, h05 );
p[ 8] = QPointF( -w02, h02 );
p[ 9] = QPointF( -w05, h02 );
p[10] = QPointF( -w05, -h02 );
p[11] = QPointF( -w02, -h02 );
for( int i=0; i<12; ++i )
crossPoints << p[i];
crossPoints << p[0];
painter->drawPolygon( crossPoints );
break;
}
case MarkerAttributes::MarkerFastCross:
{
QPointF left, right, top, bottom;
left = QPointF( -maSize.width()/2, 0 );
right = QPointF( maSize.width()/2, 0 );
top = QPointF( 0, -maSize.height()/2 );
bottom= QPointF( 0, maSize.height()/2 );
painter->setPen( PrintingParameters::scalePen( QPen( brush.color() ) ) );
painter->drawLine( left, right );
painter->drawLine( top, bottom );
break;
}
case MarkerAttributes::NoMarker:
break;
default:
Q_ASSERT_X ( false, "paintMarkers()",
"Type item does not match a defined Marker Type." );
}
}
painter->setPen( oldPen );
}
void QNeedleIndicator::drawBackground(void) {
int side = qMin(width(), height());
/* Keep side size an even number by trunkating odd pixel */
side &= ~0x01;
QRadialGradient gradient;
QPainter painter(this);
QPen pen(Qt::black);
pen.setWidth(1);
/* Initialize painter */
painter.setRenderHint(QPainter::Antialiasing);
painter.translate(width() / 2, height() / 2);
painter.scale(side / 256.0, side / 256.0);
painter.setPen(pen);
/* Draw external circle */
gradient = QRadialGradient (QPointF(-128,-128), 384, QPointF(-128,-128));
gradient.setColorAt(0, QColor(224,224,224));
gradient.setColorAt(1, QColor(28,28,28));
painter.setPen(pen);
painter.setBrush(QBrush(gradient));
painter.drawEllipse(QPoint(0,0),125,125);
/* Draw inner circle */
gradient = QRadialGradient(QPointF(128,128), 384, QPointF(128,128));
gradient.setColorAt(0, QColor(224,224,224));
gradient.setColorAt(1, QColor(28,28,28));
painter.setPen(Qt::NoPen);
painter.setBrush(QBrush(gradient));
painter.drawEllipse(QPoint(0,0),118,118);
/* Draw inner shield */
gradient = QRadialGradient (QPointF(-128,-128), 384, QPointF(-128,-128));
gradient.setColorAt(0, QColor(255,255,255));
gradient.setColorAt(1, QColor(224,224,224));
painter.setBrush(gradient);
painter.setPen(Qt::NoPen);
painter.drawEllipse(QPoint(0,0), 115, 115);
painter.setPen(pen);
painter.setBrush(Qt::black);
painter.drawPoint(0,0);
int line = 10; /* FIX #1 */
/* Draw scale majorTicks using coords rotation */
painter.save();
painter.setBrush(Qt::black);
painter.rotate(start_angle); /* initial angle (first tick) */
painter.setBrush(QBrush(Qt::black));
qreal t_rot = stop_angle/(minorTicks*(majorTicks-1)+majorTicks-1);
for(int i = 0; i < (minorTicks)*(majorTicks-1)+majorTicks; i++) {
if( minorTicks ) {
if( i%(int)(minorTicks+1) == 0 )
painter.drawLine(QPoint(105,0), QPoint(105-line, 0));
else
painter.drawLine(QPoint(105,0), QPoint(105-line/3, 0));
} else {
painter.drawLine(QPoint(105,0), QPoint(105-line, 0));
}
painter.rotate(t_rot);
}
painter.restore();
/* Draw scale numbers using vector rotation */
/* x' = xcos(a)-ysin(a) */
/* y' = xsin(a)-ycos(a) */
painter.save();
qreal rotation = (start_angle/360)*2*M_PI; /* Initial rotation */
painter.setFont(digitFont);
for(int i = 0; i < majorTicks; i++) {
QPointF point((70*cos(rotation)), 70*sin(rotation)); /* calculate digit coords */
QString value = QString().sprintf(scaleFormat.constData(), min+(qreal)i*step); /* convert digit to string */
QSize size = painter.fontMetrics().size(Qt::TextSingleLine, value); /* get string size in px */
point.rx() -= size.width()/2; /* center-align string (horiz) */
point.ry() += size.height()/4; /* center-align string (vert) */
painter.drawText(point, value);
//painter.drawPoint(point);
rotation+=rot_rad; /* go to next tick */
}
painter.restore();
/* Draw meter label */
if( label.size() ) {
painter.setFont(labelFont);
QSize size = painter.fontMetrics().size(Qt::TextSingleLine, label);
QPointF point;
point.rx() -= size.width()/2; /* center-align string (horiz) */
point.ry() += size.height()/4 + labelOffset; /* shift down, below needle */
painter.drawText(point, label); /* blop! */
}
}
void Ckeyb::drawPressed(QImage *_img)
{
if (keyPressedList.isEmpty()) {
return;
}
keyPressing.lock();
QMapIterator<int, quint64> i(keyPressedList);
keyPressing.unlock();
while (i.hasNext()) {
i.next();
QRect _rect = getKey(i.key()).Rect;
_rect.setCoords(_rect.x()*pPC->internalImageRatio,
_rect.y()*pPC->internalImageRatio,
(_rect.x()+_rect.width())*pPC->internalImageRatio,
(_rect.y()+_rect.height())*pPC->internalImageRatio);
int _m = qMin(_rect.width(), _rect.height())*.25;
_rect+= QMargins(_m,_m,_m,_m);
int dim = qMax(_rect.width(), _rect.height());
int magnifierSize = dim * 2;
int radius = magnifierSize / 2;
int ring = radius - 15;
QSize box = QSize(magnifierSize, magnifierSize);
QPixmap maskPixmap;
maskPixmap = QPixmap(box);
maskPixmap.fill(Qt::transparent);
QRadialGradient g;
g.setCenter(radius, radius);
g.setFocalPoint(radius, radius);
g.setRadius(radius);
g.setColorAt(1.0, QColor(64, 64, 64, 0));
g.setColorAt(0.5, QColor(0, 0, 0, 255));
QPainter mask(&maskPixmap);
mask.setRenderHint(QPainter::Antialiasing);
mask.setCompositionMode(QPainter::CompositionMode_Source);
mask.setBrush(g);
mask.setPen(Qt::NoPen);
mask.drawRect(maskPixmap.rect());
mask.setBrush(QColor(Qt::transparent));
mask.drawEllipse(g.center(), ring, ring);
mask.end();
QPoint center = _rect.center() - QPoint(0, radius);
center = center + QPoint(0, radius / 2);
QPoint corner = center - QPoint(radius, radius);
QPoint xy = center * 2 - QPoint(radius, radius);
// only set the dimension to the magnified portion
QPixmap zoomPixmap = QPixmap(box);
zoomPixmap.fill(Qt::lightGray);
QPainter pz(&zoomPixmap);
// pz.translate(-xy);
QRect target=QRect(QPoint(0,0),box);
pz.drawImage(target, *_img,_rect);
pz.end();
QPainterPath clipPath;
clipPath.addEllipse(center, ring, ring);
QPainter p(_img);
p.setRenderHint(QPainter::Antialiasing);
p.setClipPath(clipPath);
p.drawPixmap(corner, zoomPixmap);
p.setClipping(false);
p.drawPixmap(corner, maskPixmap);
p.setPen(Qt::gray);
p.drawPath(clipPath);
p.end();
}
}
/**
* 重绘
* 实现只出现垂直滚动条的重载的画图事件处理方法。
*
*/
void TaskBallMapWidget::paintEvent(QPaintEvent * event )
{
// qLogx()<< __FUNCTION__ <<this->mBallBit.size()<<this->mBallMap.size()<<this->mCurrentTaskId;
QBrush brush(QColor(0, 0, 0));
//依靠currtaskid 判断是否需要重绘
if (this->mCurrentTaskId < 0) {
return;
}
if (this->mBallBit.size() <= 0) {
qLogx()<<__FUNCTION__<<QString("No bit set,");
// leave the widget raw clear
return;
}
//计算图象应该具有的宽度，splitter是以线性变化，而图形则必须以非线性变化，需要对取到的窗口宽度进行圆整
int width = this->mp->size().width() - 20 ;
if (width % (this->mBallRadius*2) != 0 ) {
width = ( (width / (this->mBallRadius*2)) ) * ( this->mBallRadius * 2) ;
} else {
width = (width / (this->mBallRadius*2)) * ( this->mBallRadius * 2) ;
}
//窗口的高度。
int height = this->mBallMap.height() ;
if (width != this->mBallMap.width()) {
//qLogx()<< "change to width:" << width ;
//需要改变图象大小。宽度
this->mBallMap = QImage(width , this->mBallMap.height() , QImage::Format_ARGB32_Premultiplied);
//this->mBallMap = this->mBallMap.scaledToWidth( width ) ;
//this->resize(width,height);
this->setFixedWidth( width );
}
if (this->mBallBit.size() != (width/(this->mBallRadius*2)) * (height/(this->mBallRadius*2))) {
height = (this->mBallRadius*2) * (this->mBallBit.size())/((width/(this->mBallRadius*2)));
if (height % (this->mBallRadius*2) != 0 ) {
height = ( 1+ (height / (this->mBallRadius*2)) ) * ( this->mBallRadius * 2);
} else {
height = ( height / (this->mBallRadius*2) ) * ( this->mBallRadius * 2);
}
//qLogx()<< "change to height: " << height ;
//需要改变图象大小。高度。
//this->mBallMap = this->mBallMap.scaledToHeight( (this->mCurrentLength / (this->mBlockSize))/((width/(this->mBallRadius*2)) ) * ( this->mBallRadius*2 ));
this->mBallMap = QImage(width, height, QImage::Format_ARGB32_Premultiplied);
//this->mBallMap = this->mBallMap.scaledToHeight(height);
//this->resize(width,height);
this->setFixedHeight(height); //设置本窗口构件的大小，使得外层的滚动构件能适当的添加或者删除滚动条。
}
// ball ball 48 0 // 0 true 600 0
// qLogx()<<__FUNCTION__<<this->mBallBit.size()<<this->mBallMap.isNull()<<width<<height;
if (this->mBallMap.isNull()) {
/*
if not check, show this error:
QPainter::begin: Paint device returned engine == 0, type: 3
QPainter::setRenderHint: Painter must be active to set rendering hints
QPainter::setBrush: Painter not active
QPainter::drawRects: Painter not active
QPainter::setBrush: Painter not active
QPainter::setBrush: Painter not actiev
*/
// this->mBallMap = QImage(mp->width(), mp->height(), QImage::Format_ARGB32_Premultiplied);
return;
}
QPainter imgp(&this->mBallMap) ;
imgp.setRenderHint(QPainter::Antialiasing, true);
imgp.setBrush(brush) ;
imgp.drawRect(0, 0, this->mBallMap.width(), this->mBallMap.height());
//更改前景颜色。
brush.setColor(QColor(0,255,0));
imgp.setBrush(brush);
//////////
QRadialGradient radgrad ; //梯度法
imgp.setBrush(radgrad) ;
int row = 0 , col = 0 ; //当前行，列
int mrow , mcol ; //最大行，列
int srow , scol ; //当前球块所在行，列。
mcol = width / (this->mBallRadius*2) ;
mrow = this->mBallBit.size() % mcol == 0 ?
(this->mBallBit.size() / mcol) : (this->mBallBit.size() / mcol + 1);
int mtb = this->mBallBit.size(); //所有球的个数。
// qLogx()<<"rows:"<<mrow<<"cols:"<<mcol;
for (int row = 0; row < mrow; row++) {
int sballno;
for (int col=0; col < mcol ; col ++) {
int bx, by, bw, bh;
sballno = row * mcol + col; //本球块在整个文件块中的序号。
if (sballno >= this->mBallBit.size()) {
break;
}
if (this->mBallBit.testBit(sballno) == false) {
continue;
}
bx = col * this->mBallRadius * 2; //本求块的右上角X值。
by = row * this->mBallRadius * 2; //本求块的右上角Y值。
//qLogx()<<"x,y,w"<<bx<<by<<(this->mBallRadius*2);
radgrad.setCenter(bx+this->mBallRadius, by + this->mBallRadius); //梯度参数设置
radgrad.setRadius(this->mBallRadius * 2 );
radgrad.setFocalPoint(bx+this->mBallRadius/2,by+this->mBallRadius/2);
radgrad.setColorAt(0.0,QColor(255,255,255));
radgrad.setColorAt(0.5,QColor(0,255,0));
radgrad.setColorAt(1.0,QColor(0,0,0));
imgp.setBrush(radgrad);
imgp.drawEllipse(bx,by,this->mBallRadius*2 , this->mBallRadius*2);
}
}
//输出到屏幕。
QPainter scrp(this);
scrp.drawImage(0, 0, this->mBallMap);
}
void GroupBoxWidget::paintEvent(QPaintEvent * /*event*/)
{
// skip the rest of the painting if no text
if (m_titleText.isEmpty())
return;
// draw hovering
QPainter p(this);
if (m_hoverValue > 0 && (m_checkValue == 0.0 || m_checkValue == 1.0)) {
QRadialGradient rg = m_checkValue == 1.0 ? QRadialGradient(0.5, 0.2, 0.8) : QRadialGradient(0.5, 1.0, 1.5);
QColor startColor(Qt::white);
startColor.setAlpha((int)(255.0 * m_hoverValue));
rg.setColorAt(0.0, startColor);
rg.setColorAt(1.0, Qt::transparent);
rg.setColorAt(0.0, startColor);
rg.setColorAt(1.0, Qt::transparent);
rg.setCoordinateMode(QGradient::ObjectBoundingMode);
p.fillRect(0, 0, width(), height() - m_checkValue * (height() - 12) , rg);
}
// draw left/right lines
if (m_borderFlags & 0x0001)
p.fillRect(0, 0, 1, height(), QColor(230, 230, 230));
if (m_borderFlags & 0x0002)
p.fillRect(width() - 1, 0, 1, height(), Qt::white);
// precalc text position and move painter
QStyle * ss = m_checkable ? style() : 0;
int indW = ss ? ss->pixelMetric(QStyle::PM_IndicatorWidth, 0, 0) : 0;
int indH = ss ? ss->pixelMetric(QStyle::PM_IndicatorHeight, 0, 0) : 0;
p.save();
p.setFont(m_titleFont);
QFontMetrics metrics(m_titleFont);
QRect textRect = metrics.boundingRect(m_titleText);
// int textHeight = textRect.height();
int dx = 0;
if (m_checkValue < 1.0) {
qreal x1 = -textRect.top() + 2,
x2 = (width() - textRect.width() - indW - 4) / 2;
qreal y1 = height() - 2, //height() + textRect.width()) / 2,
y2 = -textRect.top();
p.translate(x1 + m_checkValue * (x2 - x1), y1 + m_checkValue * (y2 - y1));
p.rotate(m_checkValue * 90 - 90);
} else
p.translate((width() - textRect.width() - indW - 4) / 2, -textRect.top());
// draw checkbox indicator
if (m_checkable && indW && indH) {
QStyleOptionButton opt;
opt.state = QStyle::State_Enabled;
int styleOffset = (textRect.height() - indH) / 2;
opt.rect = QRect(0, -indH + 4 - styleOffset, indW, indH);
dx = indW + 4;
opt.state |= m_checked ? QStyle::State_On : QStyle::State_Off;
if (underMouse())
opt.state |= QStyle::State_MouseOver;
//p.setRenderHints(QPainter::Antialiasing);
style()->drawPrimitive(QStyle::PE_IndicatorCheckBox, &opt, &p, this);
}
// draw text
p.drawText(dx, 0, m_titleText);
p.restore();
}
QPixmap ThumbBarDock::generateFuzzyRect(const QSize& size, const QColor& color, int radius)
{
QPixmap pix(size);
pix.fill(Qt::transparent);
QPainter painter(&pix);
painter.setRenderHint(QPainter::Antialiasing, true);
// Draw corners ----------------------------------
QRadialGradient gradient;
gradient.setColorAt(1, Qt::transparent);
gradient.setColorAt(0, color);
gradient.setRadius(radius);
QPoint center;
// Top Left
center = QPoint(radius, radius);
gradient.setCenter(center);
gradient.setFocalPoint(center);
painter.fillRect(0, 0, radius, radius, gradient);
// Top right
center = QPoint(size.width() - radius, radius);
gradient.setCenter(center);
gradient.setFocalPoint(center);
painter.fillRect(center.x(), 0, radius, radius, gradient);
// Bottom left
center = QPoint(radius, size.height() - radius);
gradient.setCenter(center);
gradient.setFocalPoint(center);
painter.fillRect(0, center.y(), radius, radius, gradient);
// Bottom right
center = QPoint(size.width() - radius, size.height() - radius);
gradient.setCenter(center);
gradient.setFocalPoint(center);
painter.fillRect(center.x(), center.y(), radius, radius, gradient);
// Draw borders ----------------------------------
QLinearGradient linearGradient;
linearGradient.setColorAt(1, Qt::transparent);
linearGradient.setColorAt(0, color);
// Top
linearGradient.setStart(0, radius);
linearGradient.setFinalStop(0, 0);
painter.fillRect(radius, 0, size.width() - 2*radius, radius, linearGradient);
// Bottom
linearGradient.setStart(0, size.height() - radius);
linearGradient.setFinalStop(0, size.height());
painter.fillRect(radius, int(linearGradient.start().y()), size.width() - 2*radius, radius, linearGradient);
// Left
linearGradient.setStart(radius, 0);
linearGradient.setFinalStop(0, 0);
painter.fillRect(0, radius, radius, size.height() - 2*radius, linearGradient);
// Right
linearGradient.setStart(size.width() - radius, 0);
linearGradient.setFinalStop(size.width(), 0);
painter.fillRect(int(linearGradient.start().x()), radius, radius, size.height() - 2*radius, linearGradient);
return pix;
}
//! [7]
void TabletCanvas::updateBrush(QTabletEvent *event)
{
int hue, saturation, value, alpha;
myColor.getHsv(&hue, &saturation, &value, &alpha);
int vValue = int(((event->yTilt() + 60.0) / 120.0) * 255);
int hValue = int(((event->xTilt() + 60.0) / 120.0) * 255);
//! [7] //! [8]
switch (alphaChannelType) {
case AlphaPressure:
myColor.setAlpha(int(event->pressure() * 255.0));
break;
case AlphaTilt:
myColor.setAlpha(maximum(abs(vValue - 127), abs(hValue - 127)));
break;
default:
myColor.setAlpha(255);
}
//! [8] //! [9]
switch (colorSaturationType) {
case SaturationVTilt:
myColor.setHsv(hue, vValue, value, alpha);
break;
case SaturationHTilt:
myColor.setHsv(hue, hValue, value, alpha);
break;
case SaturationPressure:
myColor.setHsv(hue, int(event->pressure() * 255.0), value, alpha);
break;
default:
;
}
//! [9] //! [10]
switch (lineWidthType) {
case LineWidthPressure:
myPen.setWidthF(event->pressure() * 10 + 1);
break;
case LineWidthTilt:
myPen.setWidthF(maximum(abs(vValue - 127), abs(hValue - 127)) / 12);
break;
default:
myPen.setWidthF(1);
}
//! [10] //! [11]
if (event->pointerType() == QTabletEvent::Eraser) {
myBrush.setColor(Qt::white);
myPen.setColor(Qt::white);
myPen.setWidthF(event->pressure() * 10*factor + 1);
} else {
QRadialGradient grad;
grad.setColorAt(0,myColor);
grad.setColorAt(0.5,myColor);
QColor colr2(myColor);
colr2.setAlpha(0);
grad.setColorAt(1.0,colr2);
myBrush = QBrush(grad);
myBrush.setColor(myColor);
myPen.setBrush(grad);
}
}
