virtual void onDraw(SkCanvas* canvas) {
// explicitly add spaces, to test a prev. bug
const char* text = "Ham bur ge fons";
int len = SkToInt(strlen(text));
SkPath path;
SkPaint paint;
paint.setAntiAlias(true);
paint.setTextSize(SkIntToScalar(48));
canvas->translate(SkIntToScalar(10), SkIntToScalar(64));
canvas->drawText(text, len, 0, 0, paint);
paint.getTextPath(text, len, 0, 0, &path);
strokePath(canvas, path);
path.reset();
SkAutoTArray<SkPoint> pos(len);
SkAutoTArray<SkScalar> widths(len);
paint.getTextWidths(text, len, &widths[0]);
SkLCGRandom rand;
SkScalar x = SkIntToScalar(20);
SkScalar y = SkIntToScalar(100);
for (int i = 0; i < len; ++i) {
pos[i].set(x, y + rand.nextSScalar1() * 24);
x += widths[i];
}
canvas->translate(0, SkIntToScalar(64));
canvas->drawPosText(text, len, &pos[0], paint);
paint.getPosTextPath(text, len, &pos[0], &path);
strokePath(canvas, path);
}
void GraphicsContext::drawPath(const Path& path)
{
if (paintingDisabled())
return;
CGContextRef context = platformContext();
const GraphicsContextState& state = m_state;
if (state.fillGradient || state.strokeGradient) {
// We don't have any optimized way to fill & stroke a path using gradients
// FIXME: Be smarter about this.
fillPath(path);
strokePath(path);
return;
}
CGContextBeginPath(context);
CGContextAddPath(context, path.platformPath());
if (state.fillPattern)
applyFillPattern();
if (state.strokePattern)
applyStrokePattern();
CGPathDrawingMode drawingMode;
if (calculateDrawingMode(state, drawingMode))
CGContextDrawPath(context, drawingMode);
}
void Graphics::drawRoundedRectangle (const float x, const float y, const float width, const float height,
const float cornerSize, const float lineThickness) const
{
// passing in a silly number can cause maths problems in rendering!
jassert (areCoordsSensibleNumbers (x, y, width, height));
Path p;
p.addRoundedRectangle (x, y, width, height, cornerSize);
strokePath (p, PathStrokeType (lineThickness));
}
void SVGPaintServer::renderPath(GraphicsContext*& context, const RenderPath* path, SVGPaintTargetType type) const
{
RenderStyle* style = path->style();
CGContextRef contextRef = context->platformContext();
if ((type & ApplyToFillTargetType) && style->svgStyle()->hasFill())
fillPath(contextRef, path);
if ((type & ApplyToStrokeTargetType) && style->svgStyle()->hasStroke())
strokePath(contextRef, path);
}
void GraphicsContext::strokeRect(const FloatRect& rect, float width)
{
if (paintingDisabled())
return;
cairo_t* cr = m_data->cr;
cairo_save(cr);
cairo_rectangle(cr, rect.x(), rect.y(), rect.width(), rect.height());
cairo_set_line_width(cr, width);
strokePath();
cairo_restore(cr);
}
void GraphicsContext::strokeRect(const FloatRect& rect, float width)
{
if (paintingDisabled())
return;
QPainterPath path;
path.addRect(rect);
setStrokeThickness(width);
m_data->currentPath = path;
strokePath();
}
void GraphicsContext::strokeRect(const FloatRect& rect, float width)
{
if (paintingDisabled())
return;
QPainterPath path;
path.addRect(rect);
QPen nPen = m_data->p()->pen();
nPen.setWidthF(width);
strokePath();
}
void GraphicsContext::strokeRect(const FloatRect& rect, float lineWidth)
{
if (paintingDisabled())
return;
if (strokeGradient() || strokePattern()) {
Path path;
path.addRect(rect);
float oldLineWidth = m_state.strokeThickness;
setPlatformStrokeThickness(lineWidth);
strokePath(path);
setPlatformStrokeThickness(oldLineWidth);
} else
platformContext()->addStrokeRect(rect, lineWidth);
}
void Graphics::drawEllipse (Rectangle<float> area, float lineThickness) const
{
Path p;
if (area.getWidth() == area.getHeight())
{
// For a circle, we can avoid having to generate a stroke
p.addEllipse (area.expanded (lineThickness * 0.5f));
p.addEllipse (area.reduced (lineThickness * 0.5f));
p.setUsingNonZeroWinding (false);
fillPath (p);
}
else
{
p.addEllipse (area);
strokePath (p, PathStrokeType (lineThickness));
}
}
FloatRect Path::strokeBoundingRect(const StrokeData& strokeData,
BoundsType boundsType) const {
return pathBounds(strokePath(strokeData), boundsType);
}
bool Path::strokeContains(const FloatPoint& point,
const StrokeData& strokeData) const {
return strokePath(strokeData)
.contains(WebCoreFloatToSkScalar(point.x()),
WebCoreFloatToSkScalar(point.y()));
}
void GraphicsContext::strokeEllipseAsPath(const FloatRect& ellipse)
{
Path path;
path.addEllipse(ellipse);
strokePath(path);
}
void Graphics::drawRoundedRectangle (const Rectangle<float>& r, float cornerSize, float lineThickness) const
{
Path p;
p.addRoundedRectangle (r, cornerSize);
strokePath (p, PathStrokeType (lineThickness));
}
void Graphics::drawEllipse (float x, float y, float width, float height, float lineThickness) const
{
Path p;
p.addEllipse (x, y, width, height);
strokePath (p, PathStrokeType (lineThickness));
}
void GraphicsContext::drawPath()
{
fillPath();
strokePath();
}
void QPaintEngineEx::stroke(const QVectorPath &path, const QPen &pen)
{
#ifdef QT_DEBUG_DRAW
qDebug() << "QPaintEngineEx::stroke()" << pen;
#endif
Q_D(QPaintEngineEx);
if (path.isEmpty())
return;
if (!d->strokeHandler) {
d->strokeHandler = new StrokeHandler(path.elementCount()+4);
d->stroker.setMoveToHook(qpaintengineex_moveTo);
d->stroker.setLineToHook(qpaintengineex_lineTo);
d->stroker.setCubicToHook(qpaintengineex_cubicTo);
}
if (!qpen_fast_equals(pen, d->strokerPen)) {
d->strokerPen = pen;
d->stroker.setJoinStyle(pen.joinStyle());
d->stroker.setCapStyle(pen.capStyle());
d->stroker.setMiterLimit(pen.miterLimit());
qreal penWidth = pen.widthF();
if (penWidth == 0)
d->stroker.setStrokeWidth(1);
else
d->stroker.setStrokeWidth(penWidth);
Qt::PenStyle style = pen.style();
if (style == Qt::SolidLine) {
d->activeStroker = &d->stroker;
} else if (style == Qt::NoPen) {
d->activeStroker = 0;
} else {
d->dasher.setDashPattern(pen.dashPattern());
d->dasher.setDashOffset(pen.dashOffset());
d->activeStroker = &d->dasher;
}
}
if (!d->activeStroker) {
return;
}
if (pen.style() > Qt::SolidLine) {
if (pen.isCosmetic()) {
d->activeStroker->setClipRect(d->exDeviceRect);
} else {
QRectF clipRect = state()->matrix.inverted().mapRect(QRectF(d->exDeviceRect));
d->activeStroker->setClipRect(clipRect);
}
}
const QPainterPath::ElementType *types = path.elements();
const qreal *points = path.points();
int pointCount = path.elementCount();
const qreal *lastPoint = points + (pointCount<<1);
d->strokeHandler->types.reset();
d->strokeHandler->pts.reset();
// Some engines might decide to optimize for the non-shape hint later on...
uint flags = QVectorPath::WindingFill;
if (path.elementCount() > 2)
flags |= QVectorPath::NonConvexShapeMask;
if (d->stroker.capStyle() == Qt::RoundCap || d->stroker.joinStyle() == Qt::RoundJoin)
flags |= QVectorPath::CurvedShapeMask;
// ### Perspective Xforms are currently not supported...
if (!pen.isCosmetic()) {
// We include cosmetic pens in this case to avoid having to
// change the current transform. Normal transformed,
// non-cosmetic pens will be transformed as part of fill
// later, so they are also covered here..
d->activeStroker->setCurveThresholdFromTransform(state()->matrix);
d->activeStroker->begin(d->strokeHandler);
if (types) {
while (points < lastPoint) {
switch (*types) {
case QPainterPath::MoveToElement:
d->activeStroker->moveTo(points[0], points[1]);
points += 2;
++types;
break;
case QPainterPath::LineToElement:
d->activeStroker->lineTo(points[0], points[1]);
points += 2;
++types;
break;
case QPainterPath::CurveToElement:
d->activeStroker->cubicTo(points[0], points[1],
points[2], points[3],
points[4], points[5]);
points += 6;
types += 3;
flags |= QVectorPath::CurvedShapeMask;
break;
default:
break;
}
}
if (path.hasImplicitClose())
d->activeStroker->lineTo(path.points()[0], path.points()[1]);
} else {
d->activeStroker->moveTo(points[0], points[1]);
points += 2;
while (points < lastPoint) {
d->activeStroker->lineTo(points[0], points[1]);
points += 2;
}
if (path.hasImplicitClose())
d->activeStroker->lineTo(path.points()[0], path.points()[1]);
}
d->activeStroker->end();
if (!d->strokeHandler->types.size()) // an empty path...
return;
QVectorPath strokePath(d->strokeHandler->pts.data(),
d->strokeHandler->types.size(),
d->strokeHandler->types.data(),
flags);
fill(strokePath, pen.brush());
} else {
// For cosmetic pens we need a bit of trickery... We to process xform the input points
if (state()->matrix.type() >= QTransform::TxProject) {
QPainterPath painterPath = state()->matrix.map(path.convertToPainterPath());
d->activeStroker->strokePath(painterPath, d->strokeHandler, QTransform());
} else {
d->activeStroker->setCurveThresholdFromTransform(QTransform());
d->activeStroker->begin(d->strokeHandler);
if (types) {
while (points < lastPoint) {
switch (*types) {
case QPainterPath::MoveToElement: {
QPointF pt = (*(QPointF *) points) * state()->matrix;
d->activeStroker->moveTo(pt.x(), pt.y());
points += 2;
++types;
break;
}
case QPainterPath::LineToElement: {
QPointF pt = (*(QPointF *) points) * state()->matrix;
d->activeStroker->lineTo(pt.x(), pt.y());
points += 2;
++types;
break;
}
case QPainterPath::CurveToElement: {
QPointF c1 = ((QPointF *) points)[0] * state()->matrix;
QPointF c2 = ((QPointF *) points)[1] * state()->matrix;
QPointF e = ((QPointF *) points)[2] * state()->matrix;
d->activeStroker->cubicTo(c1.x(), c1.y(), c2.x(), c2.y(), e.x(), e.y());
points += 6;
types += 3;
flags |= QVectorPath::CurvedShapeMask;
break;
}
default:
break;
}
}
if (path.hasImplicitClose()) {
QPointF pt = * ((QPointF *) path.points()) * state()->matrix;
d->activeStroker->lineTo(pt.x(), pt.y());
}
} else {
QPointF p = ((QPointF *)points)[0] * state()->matrix;
d->activeStroker->moveTo(p.x(), p.y());
points += 2;
while (points < lastPoint) {
QPointF p = ((QPointF *)points)[0] * state()->matrix;
d->activeStroker->lineTo(p.x(), p.y());
points += 2;
}
if (path.hasImplicitClose())
d->activeStroker->lineTo(p.x(), p.y());
}
d->activeStroker->end();
}
QVectorPath strokePath(d->strokeHandler->pts.data(),
d->strokeHandler->types.size(),
d->strokeHandler->types.data(),
flags);
QTransform xform = state()->matrix;
state()->matrix = QTransform();
transformChanged();
QBrush brush = pen.brush();
if (qbrush_style(brush) != Qt::SolidPattern)
brush.setTransform(brush.transform() * xform);
fill(strokePath, brush);
state()->matrix = xform;
transformChanged();
}
}
