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Bug 539356 - Part 2 - Add new API to BasicLayers. r=roc

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This commit is contained in:
Matt Woodrow 2012-07-17 13:03:51 -04:00
parent d857e4f101
commit 8c49e4a361
2 changed files with 11 additions and 3 deletions
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6
gfx/layers/Layers.h
View File

@ -229,6 +229,12 @@ public:
virtual ShadowLayerManager* AsShadowManager()
{ return nsnull; }
/**
* Returns true if this LayerManager is owned by an nsIWidget,
* and is used for drawing into the widget.
*/
virtual bool IsWidgetLayerManager() { return true; }
/**
* Start a new transaction. Nested transactions are not allowed so
* there must be no transaction currently in progress.

8
gfx/layers/basic/BasicLayers.h
View File

@ -86,6 +86,8 @@ public:
nsIWidget* GetRetainerWidget() { return mWidget; }
void ClearRetainerWidget() { mWidget = nsnull; }
virtual bool IsWidgetLayerManager() { return mWidget != nsnull; }
virtual void BeginTransaction();
virtual void BeginTransactionWithTarget(gfxContext* aTarget);
virtual bool EndEmptyTransaction();
@ -121,9 +123,11 @@ public:
bool InConstruction() { return mPhase == PHASE_CONSTRUCTION; }
bool InDrawing() { return mPhase == PHASE_DRAWING; }
bool InForward() { return mPhase == PHASE_FORWARD; }
bool InTransaction() { return mPhase != PHASE_NONE; }
#endif
bool InTransaction() { return mPhase != PHASE_NONE; }
gfxContext* GetTarget() { return mTarget; }
void SetTarget(gfxContext* aTarget) { mUsingDefaultTarget = false; mTarget = aTarget; }
bool IsRetained() { return mWidget != nsnull; }
#ifdef MOZ_LAYERS_HAVE_LOG
@ -149,12 +153,10 @@ public:
virtual PRInt32 GetMaxTextureSize() const { return PR_INT32_MAX; }
protected:
#ifdef DEBUG
enum TransactionPhase {
PHASE_NONE, PHASE_CONSTRUCTION, PHASE_DRAWING, PHASE_FORWARD
};
TransactionPhase mPhase;
#endif
// Paints aLayer to mTarget.
void PaintLayer(gfxContext* aTarget,