本文整理汇总了C++中GraphicsContext::beginPath方法的典型用法代码示例。如果您正苦于以下问题：C++ GraphicsContext::beginPath方法的具体用法？C++ GraphicsContext::beginPath怎么用？C++ GraphicsContext::beginPath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GraphicsContext的用法示例。
在下文中一共展示了GraphicsContext::beginPath方法的5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: drawingContext
void CanvasRenderingContext2D::fill()
{
GraphicsContext* c = drawingContext();
if (!c)
return;
c->beginPath();
c->addPath(m_path);
if (!m_path.isEmpty())
willDraw(m_path.boundingRect());
#if PLATFORM(CG)
if (state().m_fillStyle->canvasGradient()) {
// Shading works on the entire clip region, so convert the current path to a clip.
c->save();
CGContextClip(c->platformContext());
CGContextDrawShading(c->platformContext(), state().m_fillStyle->canvasGradient()->gradient().platformGradient());
c->restore();
} else {
if (state().m_fillStyle->pattern())
applyFillPattern();
CGContextFillPath(c->platformContext());
}
#elif PLATFORM(QT)
QPainterPath* path = m_path.platformPath();
QPainter* p = static_cast<QPainter*>(c->platformContext());
if (state().m_fillStyle->canvasGradient()) {
p->fillPath(*path, QBrush(*(state().m_fillStyle->canvasGradient()->gradient().platformGradient())));
} else {
if (state().m_fillStyle->pattern())
applyFillPattern();
p->fillPath(*path, p->brush());
}
#elif PLATFORM(CAIRO) && !PLATFORM(BAL)
cairo_t* cr = c->platformContext();
cairo_save(cr);
if (state().m_fillStyle->canvasGradient()) {
cairo_set_source(cr, state().m_fillStyle->canvasGradient()->gradient().platformGradient());
cairo_fill(cr);
} else {
if (state().m_fillStyle->pattern())
applyFillPattern();
cairo_fill(cr);
}
cairo_restore(cr);
#elif PLATFORM(BAL)
//FIXME
notImplemented();
#endif
#if ENABLE(DASHBOARD_SUPPORT)
clearPathForDashboardBackwardCompatibilityMode();
#endif
}示例2: paintReplaced
void RenderEmbeddedObject::paintReplaced(PaintInfo& paintInfo, int tx, int ty)
{
if (!m_replacementText)
return;
if (paintInfo.phase == PaintPhaseSelection)
return;
GraphicsContext* context = paintInfo.context;
if (context->paintingDisabled())
return;
FloatRect pluginRect = contentBoxRect();
pluginRect.move(tx, ty);
FontDescription fontDescription;
RenderTheme::defaultTheme()->systemFont(CSSValueWebkitSmallControl, fontDescription);
fontDescription.setWeight(FontWeightBold);
Settings* settings = document()->settings();
ASSERT(settings);
if (!settings)
return;
fontDescription.setRenderingMode(settings->fontRenderingMode());
fontDescription.setComputedSize(fontDescription.specifiedSize());
Font font(fontDescription, 0, 0);
font.update(0);
TextRun run(m_replacementText.characters(), m_replacementText.length());
run.disableRoundingHacks();
float textWidth = font.floatWidth(run);
FloatRect replacementTextRect;
replacementTextRect.setSize(FloatSize(textWidth + replacementTextRoundedRectLeftRightTextMargin * 2, replacementTextRoundedRectHeight));
replacementTextRect.setLocation(FloatPoint((pluginRect.size().width() / 2 - replacementTextRect.size().width() / 2) + pluginRect.location().x(),
(pluginRect.size().height() / 2 - replacementTextRect.size().height() / 2) + pluginRect.location().y()));
Path path = Path::createRoundedRectangle(replacementTextRect, FloatSize(replacementTextRoundedRectRadius, replacementTextRoundedRectRadius));
context->save();
context->clip(pluginRect);
context->beginPath();
context->addPath(path);
context->setAlpha(replacementTextRoundedRectOpacity);
context->setFillColor(Color::white, style()->colorSpace());
context->fillPath();
FloatPoint labelPoint(roundf(replacementTextRect.location().x() + (replacementTextRect.size().width() - textWidth) / 2),
roundf(replacementTextRect.location().y()+ (replacementTextRect.size().height() - font.height()) / 2 + font.ascent()));
context->setAlpha(replacementTextTextOpacity);
context->setFillColor(Color::black, style()->colorSpace());
context->drawBidiText(font, run, labelPoint);
context->restore();
}示例3: strokeBoundingRect
FloatRect Path::strokeBoundingRect(StrokeStyleApplier* applier)
{
GraphicsContext* scratch = scratchContext();
scratch->save();
scratch->beginPath();
scratch->addPath(*this);
if (applier)
applier->strokeStyle(scratch);
FloatRect r = boundingBoxForCurrentStroke(scratch);
scratch->restore();
return r;
}示例4: drawingContext
void CanvasRenderingContext2D::fill()
{
GraphicsContext* c = drawingContext();
if (!c)
return;
if (!state().m_invertibleCTM)
return;
if (!m_path.isEmpty()) {
c->beginPath();
c->addPath(m_path);
willDraw(m_path.boundingRect());
c->fillPath();
}
#if ENABLE(DASHBOARD_SUPPORT)
clearPathForDashboardBackwardCompatibilityMode();
#endif
}示例5: strokeApplier
void CanvasRenderingContext2D::stroke()
{
GraphicsContext* c = drawingContext();
if (!c)
return;
if (!state().m_invertibleCTM)
return;
if (!m_path.isEmpty()) {
c->beginPath();
c->addPath(m_path);
CanvasStrokeStyleApplier strokeApplier(this);
FloatRect boundingRect = m_path.strokeBoundingRect(&strokeApplier);
willDraw(boundingRect);
c->strokePath();
}
#if ENABLE(DASHBOARD_SUPPORT)
clearPathForDashboardBackwardCompatibilityMode();
#endif
}