зеркало из https://github.com/mozilla/gecko-dev.git
74 строки
2.0 KiB
C++
74 строки
2.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
* 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/. */
|
|
|
|
#include "BasicCanvasLayer.h"
|
|
#include "basic/BasicLayers.h" // for BasicLayerManager
|
|
#include "basic/BasicLayersImpl.h" // for GetEffectiveOperator
|
|
#include "mozilla/mozalloc.h" // for operator new
|
|
#include "nsAutoPtr.h" // for nsRefPtr
|
|
#include "nsCOMPtr.h" // for already_AddRefed
|
|
#include "nsISupportsImpl.h" // for Layer::AddRef, etc
|
|
#include "gfx2DGlue.h"
|
|
|
|
class gfxContext;
|
|
|
|
using namespace mozilla::gfx;
|
|
using namespace mozilla::gl;
|
|
|
|
namespace mozilla {
|
|
namespace layers {
|
|
|
|
void
|
|
BasicCanvasLayer::Paint(DrawTarget* aDT,
|
|
const Point& aDeviceOffset,
|
|
Layer* aMaskLayer)
|
|
{
|
|
if (IsHidden())
|
|
return;
|
|
|
|
if (IsDirty()) {
|
|
Painted();
|
|
|
|
FirePreTransactionCallback();
|
|
UpdateTarget();
|
|
FireDidTransactionCallback();
|
|
}
|
|
|
|
if (!mSurface) {
|
|
return;
|
|
}
|
|
|
|
const bool needsYFlip = (mOriginPos == gl::OriginPos::BottomLeft);
|
|
|
|
Matrix oldTM;
|
|
if (needsYFlip) {
|
|
oldTM = aDT->GetTransform();
|
|
aDT->SetTransform(Matrix(oldTM).
|
|
PreTranslate(0.0f, mBounds.height).
|
|
PreScale(1.0f, -1.0f));
|
|
}
|
|
|
|
FillRectWithMask(aDT, aDeviceOffset,
|
|
Rect(0, 0, mBounds.width, mBounds.height),
|
|
mSurface, ToFilter(mFilter),
|
|
DrawOptions(GetEffectiveOpacity(), GetEffectiveOperator(this)),
|
|
aMaskLayer);
|
|
|
|
if (needsYFlip) {
|
|
aDT->SetTransform(oldTM);
|
|
}
|
|
}
|
|
|
|
already_AddRefed<CanvasLayer>
|
|
BasicLayerManager::CreateCanvasLayer()
|
|
{
|
|
NS_ASSERTION(InConstruction(), "Only allowed in construction phase");
|
|
nsRefPtr<CanvasLayer> layer = new BasicCanvasLayer(this);
|
|
return layer.forget();
|
|
}
|
|
|
|
}
|
|
}
|