// static
void TextPainter::updateGraphicsContext(GraphicsContext& context,
const Style& textStyle,
bool horizontal,
GraphicsContextStateSaver& stateSaver) {
TextDrawingModeFlags mode = context.textDrawingMode();
if (textStyle.strokeWidth > 0) {
TextDrawingModeFlags newMode = mode | TextModeStroke;
if (mode != newMode) {
if (!stateSaver.saved())
stateSaver.save();
context.setTextDrawingMode(newMode);
mode = newMode;
}
}
if (mode & TextModeFill && textStyle.fillColor != context.fillColor())
context.setFillColor(textStyle.fillColor);
if (mode & TextModeStroke) {
if (textStyle.strokeColor != context.strokeColor())
context.setStrokeColor(textStyle.strokeColor);
if (textStyle.strokeWidth != context.strokeThickness())
context.setStrokeThickness(textStyle.strokeWidth);
}
if (textStyle.shadow) {
if (!stateSaver.saved())
stateSaver.save();
context.setDrawLooper(textStyle.shadow->createDrawLooper(
DrawLooperBuilder::ShadowIgnoresAlpha, textStyle.currentColor,
horizontal));
}
}
// static
void TextPainter::updateGraphicsContext(GraphicsContext* context, const Style& textStyle, bool horizontal, GraphicsContextStateSaver& stateSaver)
{
TextDrawingModeFlags mode = context->textDrawingMode();
if (textStyle.strokeWidth > 0) {
TextDrawingModeFlags newMode = mode | TextModeStroke;
if (mode != newMode) {
if (!stateSaver.saved())
stateSaver.save();
context->setTextDrawingMode(newMode);
mode = newMode;
}
}
if (mode & TextModeFill && textStyle.fillColor != context->fillColor())
context->setFillColor(textStyle.fillColor);
if (mode & TextModeStroke) {
if (textStyle.strokeColor != context->strokeColor())
context->setStrokeColor(textStyle.strokeColor);
if (textStyle.strokeWidth != context->strokeThickness())
context->setStrokeThickness(textStyle.strokeWidth);
}
// Text shadows are disabled when printing. http://crbug.com/258321
if (textStyle.shadow && !context->printing()) {
if (!stateSaver.saved())
stateSaver.save();
context->setDrawLooper(textStyle.shadow->createDrawLooper(DrawLooperBuilder::ShadowIgnoresAlpha, textStyle.currentColor, horizontal));
}
}
static bool setupNonScalingStrokeContext(AffineTransform& strokeTransform, GraphicsContextStateSaver& stateSaver)
{
if (!strokeTransform.isInvertible())
return false;
stateSaver.save();
stateSaver.context().concatCTM(strokeTransform.inverse());
return true;
}
bool RenderSVGShape::setupNonScalingStrokeContext(AffineTransform& strokeTransform, GraphicsContextStateSaver& stateSaver)
{
Optional<AffineTransform> inverse = strokeTransform.inverse();
if (!inverse)
return false;
stateSaver.save();
stateSaver.context()->concatCTM(inverse.value());
return true;
}
bool SVGLayoutSupport::updateGraphicsContext(const PaintInfo& paintInfo, GraphicsContextStateSaver& stateSaver, const ComputedStyle& style, LayoutObject& layoutObject, LayoutSVGResourceMode resourceMode, const AffineTransform* additionalPaintServerTransform)
{
ASSERT(paintInfo.context == stateSaver.context());
GraphicsContext& context = *paintInfo.context;
if (paintInfo.isRenderingClipPathAsMaskImage()) {
if (resourceMode == ApplyToStrokeMode)
return false;
context.setFillColor(SVGComputedStyle::initialFillPaintColor());
return true;
}
SVGPaintServer paintServer = SVGPaintServer::requestForLayoutObject(layoutObject, style, resourceMode);
if (!paintServer.isValid())
return false;
if (additionalPaintServerTransform && paintServer.isTransformDependent())
paintServer.prependTransform(*additionalPaintServerTransform);
const SVGComputedStyle& svgStyle = style.svgStyle();
float paintAlpha = resourceMode == ApplyToFillMode ? svgStyle.fillOpacity() : svgStyle.strokeOpacity();
paintServer.apply(context, resourceMode, paintAlpha, stateSaver);
if (resourceMode == ApplyToFillMode)
context.setFillRule(svgStyle.fillRule());
else
applyStrokeStyleToContext(context, style, layoutObject);
return true;
}
bool SVGRenderSupport::updateGraphicsContext(const PaintInfo& paintInfo, GraphicsContextStateSaver& stateSaver, RenderStyle* style, RenderObject& renderer, RenderSVGResourceMode resourceMode, const AffineTransform* additionalPaintServerTransform)
{
ASSERT(style);
ASSERT(paintInfo.context == stateSaver.context());
GraphicsContext* context = paintInfo.context;
if (paintInfo.isRenderingClipPathAsMaskImage()) {
if (resourceMode == ApplyToStrokeMode)
return false;
context->setAlphaAsFloat(1);
context->setFillColor(SVGRenderStyle::initialFillPaintColor());
return true;
}
SVGPaintServer paintServer = SVGPaintServer::requestForRenderer(renderer, style, resourceMode);
if (!paintServer.isValid())
return false;
if (additionalPaintServerTransform && paintServer.isTransformDependent())
paintServer.prependTransform(*additionalPaintServerTransform);
paintServer.apply(*context, resourceMode, &stateSaver);
const SVGRenderStyle& svgStyle = style->svgStyle();
if (resourceMode == ApplyToFillMode) {
context->setAlphaAsFloat(svgStyle.fillOpacity());
context->setFillRule(svgStyle.fillRule());
} else {
context->setAlphaAsFloat(svgStyle.strokeOpacity());
applyStrokeStyleToContext(context, style, &renderer);
}
return true;
}