gecko-dev/layout/svg/SVGImageContext.cpp

81 строка
2.6 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
// Main header first:
#include "SVGImageContext.h"
// Keep others in (case-insensitive) order:
#include "gfxUtils.h"
#include "mozilla/Preferences.h"
#include "nsContentUtils.h"
#include "nsIFrame.h"
#include "nsPresContext.h"
#include "nsStyleStruct.h"
namespace mozilla {
/* static */ void
SVGImageContext::MaybeStoreContextPaint(Maybe<SVGImageContext>& aContext,
nsIFrame* aFromFrame,
imgIContainer* aImgContainer)
{
return MaybeStoreContextPaint(aContext,
aFromFrame->Style(),
aImgContainer);
}
/* static */ void
SVGImageContext::MaybeStoreContextPaint(Maybe<SVGImageContext>& aContext,
ComputedStyle* aFromComputedStyle,
imgIContainer* aImgContainer)
{
const nsStyleSVG* style = aFromComputedStyle->StyleSVG();
if (!style->ExposesContextProperties()) {
// Content must have '-moz-context-properties' set to the names of the
// properties it wants to expose to images it links to.
return;
}
if (aImgContainer->GetType() != imgIContainer::TYPE_VECTOR) {
// Avoid this overhead for raster images.
return;
}
bool haveContextPaint = false;
RefPtr<SVGEmbeddingContextPaint> contextPaint = new SVGEmbeddingContextPaint();
if ((style->mContextPropsBits & NS_STYLE_CONTEXT_PROPERTY_FILL) &&
style->mFill.Type() == eStyleSVGPaintType_Color) {
haveContextPaint = true;
contextPaint->SetFill(style->mFill.GetColor());
}
if ((style->mContextPropsBits & NS_STYLE_CONTEXT_PROPERTY_STROKE) &&
style->mStroke.Type() == eStyleSVGPaintType_Color) {
haveContextPaint = true;
contextPaint->SetStroke(style->mStroke.GetColor());
}
if (style->mContextPropsBits & NS_STYLE_CONTEXT_PROPERTY_FILL_OPACITY) {
haveContextPaint = true;
contextPaint->SetFillOpacity(style->mFillOpacity);
}
if (style->mContextPropsBits & NS_STYLE_CONTEXT_PROPERTY_STROKE_OPACITY) {
haveContextPaint = true;
contextPaint->SetStrokeOpacity(style->mStrokeOpacity);
}
if (haveContextPaint) {
if (!aContext) {
aContext.emplace();
}
aContext->mContextPaint = contextPaint.forget();
}
}
} // namespace mozilla