// This is only used to draw borders.
void GraphicsContext::drawLine(const IntPoint& point1, const IntPoint& point2)
{
if (paintingDisabled())
return;
FloatPoint p1 = point1;
FloatPoint p2 = point2;
QPainter *p = m_data->p();
const bool antiAlias = p->testRenderHint(QPainter::Antialiasing);
p->setRenderHint(QPainter::Antialiasing, m_data->antiAliasingForRectsAndLines);
adjustLineToPixelBoundaries(p1, p2, strokeThickness(), strokeStyle());
IntSize shadowSize;
int shadowBlur;
Color shadowColor;
if (textDrawingMode() == cTextFill && getShadow(shadowSize, shadowBlur, shadowColor)) {
p->save();
p->translate(shadowSize.width(), shadowSize.height());
p->setPen(QColor(shadowColor));
p->drawLine(p1, p2);
p->restore();
}
p->drawLine(p1, p2);
p->setRenderHint(QPainter::Antialiasing, antiAlias);
}
void Needle::Draw(
QPainter& P, //! The painter object
qreal fAngleDeg //! Needle angle given in degrees.
)
{
P.save();
P.rotate(-fAngleDeg);
if(m_eType != tPlain && m_eType != tPlainLabel) {
bool bActive = P.testRenderHint(QPainter::SmoothPixmapTransform);
if(!bActive)
P.setRenderHint(QPainter::SmoothPixmapTransform, true);
P.drawPixmap(QPointF(0.0,-m_size.height()/2.0), m_px);
if(!bActive)
P.setRenderHint(QPainter::SmoothPixmapTransform, false);
}
else {
P.setPen(QPen(Qt::white, m_size.height()));
P.drawLine(m_iOffset, 0, m_size.width(), 0);
}
if(m_eType == tPlainLabel) {
qreal fH = 9;
P.setPen(QPen(Qt::white, 2));
P.drawEllipse(0.5*m_size.width()-fH/2, -fH/2, fH,fH);
}
P.restore();
}
void GraphicsContext::strokeArc(const IntRect& rect, int startAngle, int angleSpan)
{
if (paintingDisabled() || strokeStyle() == NoStroke || strokeThickness() <= 0.0f || !strokeColor().alpha())
return;
QPainter *p = m_data->p();
const bool antiAlias = p->testRenderHint(QPainter::Antialiasing);
p->setRenderHint(QPainter::Antialiasing, m_data->antiAliasingForRectsAndLines);
p->drawArc(rect, startAngle * 16, angleSpan * 16);
p->setRenderHint(QPainter::Antialiasing, antiAlias);
}
// Draws a filled rectangle with a stroked border.
void GraphicsContext::drawRect(const IntRect& rect)
{
if (paintingDisabled())
return;
QPainter *p = m_data->p();
const bool antiAlias = p->testRenderHint(QPainter::Antialiasing);
p->setRenderHint(QPainter::Antialiasing, m_data->antiAliasingForRectsAndLines);
p->drawRect(rect);
p->setRenderHint(QPainter::Antialiasing, antiAlias);
}
void KoShapeShadow::paint(KoShape *shape, QPainter &painter, const KoViewConverter &converter)
{
if (! d->visible)
return;
// So the approach we are taking here is to draw into a buffer image the size of boundingRect
// We offset by the shadow offset at the time we draw into the buffer
// Then we filter the image and draw it at the position of the bounding rect on canvas
//the boundingRect of the shape or the KoSelection boundingRect of the group
QRectF shadowRect = shape->boundingRect();
QRectF zoomedClipRegion = converter.documentToView(shadowRect);
// Init the buffer image
QImage sourceGraphic(zoomedClipRegion.size().toSize(), QImage::Format_ARGB32_Premultiplied);
sourceGraphic.fill(qRgba(0,0,0,0));
// Init the buffer painter
QPainter imagePainter(&sourceGraphic);
imagePainter.setPen(Qt::NoPen);
imagePainter.setBrush(Qt::NoBrush);
imagePainter.setRenderHint(QPainter::Antialiasing, painter.testRenderHint(QPainter::Antialiasing));
// Since our imagebuffer and the canvas don't align we need to offset our drawings
imagePainter.translate(-1.0f*converter.documentToView(shadowRect.topLeft()));
// Handle the shadow offset
imagePainter.translate(converter.documentToView(offset()));
KoShapeGroup *group = dynamic_cast<KoShapeGroup*>(shape);
if (group) {
d->paintGroupShadow(group, imagePainter, converter);
} else {
//apply shape's transformation
imagePainter.setTransform(shape->absoluteTransformation(&converter), true);
d->paintShadow(shape, imagePainter, converter);
}
imagePainter.end();
// Blur the shadow (well the entire buffer)
d->blurShadow(sourceGraphic, converter.documentToViewX(d->blur), d->color);
// Paint the result
painter.save();
// The painter is initialized for us with canvas transform 'plus' shape transform
// we are only interested in the canvas transform so 'subtract' the shape transform part
painter.setTransform(shape->absoluteTransformation(&converter).inverted() * painter.transform());
painter.drawImage(zoomedClipRegion.topLeft(), sourceGraphic);
painter.restore();
}
// This is only used to draw borders.
void GraphicsContext::drawLine(const IntPoint& point1, const IntPoint& point2)
{
if (paintingDisabled())
return;
FloatPoint p1 = point1;
FloatPoint p2 = point2;
QPainter *p = m_data->p();
const bool antiAlias = p->testRenderHint(QPainter::Antialiasing);
p->setRenderHint(QPainter::Antialiasing, m_data->antiAliasingForRectsAndLines);
adjustLineToPixelBoundaries(p1, p2, strokeThickness(), strokeStyle());
p->drawLine(p1, p2);
p->setRenderHint(QPainter::Antialiasing, antiAlias);
}
void GraphicsContext::drawFocusRing(const Color& color)
{
if (paintingDisabled())
return;
const Vector<IntRect>& rects = focusRingRects();
unsigned rectCount = rects.size();
if (rects.size() == 0)
return;
QPainter *p = m_data->p();
const bool antiAlias = p->testRenderHint(QPainter::Antialiasing);
p->setRenderHint(QPainter::Antialiasing, m_data->antiAliasingForRectsAndLines);
const QPen oldPen = p->pen();
const QBrush oldBrush = p->brush();
QPen nPen = p->pen();
nPen.setColor(color);
p->setBrush(Qt::NoBrush);
nPen.setStyle(Qt::DotLine);
p->setPen(nPen);
#if 0
// FIXME How do we do a bounding outline with Qt?
QPainterPath path;
for (int i = 0; i < rectCount; ++i)
path.addRect(QRectF(rects[i]));
QPainterPathStroker stroker;
QPainterPath newPath = stroker.createStroke(path);
p->strokePath(newPath, nPen);
#else
for (int i = 0; i < rectCount; ++i)
p->drawRect(QRectF(rects[i]));
#endif
p->setPen(oldPen);
p->setBrush(oldBrush);
p->setRenderHint(QPainter::Antialiasing, antiAlias);
}
void
PixmapRenderer::drawPixmap(
QPainter& painter, QPixmap const& pixmap)
{
#if !defined(Q_WS_X11)
drawPixmapNoXRender(painter, pixmap);
#else
QPaintDevice* const dev = painter.device();
QPoint offset; // Both x and y will be either zero or negative.
QPaintDevice* const redir_dev = QPainter::redirected(painter.device(), &offset);
QPaintDevice* const paint_dev = redir_dev ? redir_dev : dev;
#if defined(ENABLE_OPENGL)
if (dynamic_cast<QGLWidget*>(paint_dev)) {
drawPixmapNoXRender(painter, pixmap);
return;
}
#endif
QRect const device_rect(
QRect(0, 0, dev->width(), dev->height()).translated(-offset)
);
QRectF const src_rect(pixmap.rect());
Display* const dpy = QX11Info::display();
Picture const src_pict = pixmap.x11PictureHandle();
Picture dst_pict = 0;
if (QWidget* widget = dynamic_cast<QWidget*>(paint_dev)) {
dst_pict = widget->x11PictureHandle();
} else if (QPixmap* pixmap = dynamic_cast<QPixmap*>(paint_dev)) {
dst_pict = pixmap->x11PictureHandle();
}
if (!dst_pict) {
drawPixmapNoXRender(painter, pixmap);
return;
}
// Note that device transform already accounts for offset
// within a destination surface.
QTransform const src_to_dst(painter.deviceTransform());
QTransform const dst_to_src(src_to_dst.inverted());
QPolygonF const dst_poly(src_to_dst.map(src_rect));
XTransform xform = {{
{
XDoubleToFixed(dst_to_src.m11()),
XDoubleToFixed(dst_to_src.m21()),
XDoubleToFixed(dst_to_src.m31())
},
{
XDoubleToFixed(dst_to_src.m12()),
XDoubleToFixed(dst_to_src.m22()),
XDoubleToFixed(dst_to_src.m32())
},
{
XDoubleToFixed(dst_to_src.m13()),
XDoubleToFixed(dst_to_src.m23()),
XDoubleToFixed(dst_to_src.m33())
}
}};
XRenderSetPictureTransform(dpy, src_pict, &xform);
char const* filter = "fast";
if (painter.testRenderHint(QPainter::SmoothPixmapTransform)) {
filter = "good";
}
XRenderSetPictureFilter(dpy, src_pict, filter, 0, 0);
QRectF const dst_rect_precise(dst_poly.boundingRect());
QRect const dst_rect_fitting(
QPoint(
int(ceil(dst_rect_precise.left())),
int(ceil(dst_rect_precise.top()))
),
QPoint(
int(floor(dst_rect_precise.right())) - 1,
int(floor(dst_rect_precise.bottom())) - 1
)
);
QRect dst_bounding_rect(device_rect);
if (painter.hasClipping()) {
QRect const clip_rect(
src_to_dst.map(painter.clipPath()).boundingRect().toRect()
);
dst_bounding_rect = dst_bounding_rect.intersected(clip_rect);
}
QRect const dst_rect(dst_rect_fitting.intersect(dst_bounding_rect));
// Note that XRenderComposite() expects destination coordinates
// everywhere, even for source picture origin.
XRenderComposite(
dpy, PictOpSrc,
src_pict, 0, dst_pict, dst_rect.left(), dst_rect.top(), 0, 0,
dst_rect.left(), dst_rect.top(), dst_rect.width(), dst_rect.height()
);
#endif
}
void QDeclarativeRectangle::drawRect(QPainter &p)
{
Q_D(QDeclarativeRectangle);
if ((d->gradient && d->gradient->gradient())
|| d->radius > width()/2 || d->radius > height()/2
|| width() < 3 || height() < 3) {
// XXX This path is still slower than the image path
// Image path won't work for gradients or invalid radius though
bool oldAA = p.testRenderHint(QPainter::Antialiasing);
if (d->smooth)
p.setRenderHint(QPainter::Antialiasing);
if (d->pen && d->pen->isValid()) {
QPen pn(QColor(d->pen->color()), d->pen->width());
pn.setJoinStyle(Qt::MiterJoin);
p.setPen(pn);
} else {
p.setPen(Qt::NoPen);
}
if (d->gradient && d->gradient->gradient())
p.setBrush(*d->gradient->gradient());
else
p.setBrush(d->color);
const int pw = d->pen && d->pen->isValid() ? d->pen->width() : 0;
QRectF rect;
if (pw%2)
rect = QRectF(0.5, 0.5, width()-1, height()-1);
else
rect = QRectF(0, 0, width(), height());
qreal radius = d->radius;
if (radius > width()/2 || radius > height()/2)
radius = qMin(width()/2, height()/2);
if (radius > 0.)
p.drawRoundedRect(rect, radius, radius);
else
p.drawRect(rect);
if (d->smooth)
p.setRenderHint(QPainter::Antialiasing, oldAA);
} else {
bool oldAA = p.testRenderHint(QPainter::Antialiasing);
bool oldSmooth = p.testRenderHint(QPainter::SmoothPixmapTransform);
if (d->smooth)
p.setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform, d->smooth);
const int pw = d->pen && d->pen->isValid() ? (d->pen->width()+1)/2*2 : 0;
if (d->radius > 0)
generateRoundedRect();
else
generateBorderedRect();
int xOffset = (d->rectImage.width()-1)/2;
int yOffset = (d->rectImage.height()-1)/2;
Q_ASSERT(d->rectImage.width() == 2*xOffset + 1);
Q_ASSERT(d->rectImage.height() == 2*yOffset + 1);
// check whether we've eliminated the center completely
if (2*xOffset > width()+pw)
xOffset = (width()+pw)/2;
if (2*yOffset > height()+pw)
yOffset = (height()+pw)/2;
QMargins margins(xOffset, yOffset, xOffset, yOffset);
QTileRules rules(Qt::StretchTile, Qt::StretchTile);
//NOTE: even though our item may have qreal-based width and height, qDrawBorderPixmap only supports QRects
qDrawBorderPixmap(&p, QRect(-pw/2, -pw/2, width()+pw, height()+pw), margins, d->rectImage, d->rectImage.rect(), margins, rules);
if (d->smooth) {
p.setRenderHint(QPainter::Antialiasing, oldAA);
p.setRenderHint(QPainter::SmoothPixmapTransform, oldSmooth);
}
}
}