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Bug 598854. We no longer have cases where the view to paint is not a displayroot, so remove the code that handles that. r=tnikkel

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This commit is contained in:
Robert O'Callahan 2011-04-11 08:41:18 -07:00
parent 367f0df4fa
commit acc00bd703
3 changed files with 19 additions and 66 deletions
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63
layout/base/nsPresShell.cpp
View File

@ -843,8 +843,7 @@ public:
//nsIViewObserver interface
NS_IMETHOD Paint(nsIView* aDisplayRoot,
nsIView* aViewToPaint,
NS_IMETHOD Paint(nsIView* aViewToPaint,
nsIWidget* aWidget,
const nsRegion& aDirtyRegion,
const nsIntRegion& aIntDirtyRegion,
@ -5877,9 +5876,6 @@ nscolor PresShell::ComputeBackstopColor(nsIView* aDisplayRoot)
}
struct PaintParams {
nsIFrame* mFrame;
nsPoint mOffsetToWidget;
const nsRegion* mDirtyRegion;
nscolor mBackgroundColor;
};
@ -5957,33 +5953,16 @@ static void DrawThebesLayer(ThebesLayer* aLayer,
void* aCallbackData)
{
PaintParams* params = static_cast<PaintParams*>(aCallbackData);
nsIFrame* frame = params->mFrame;
if (frame) {
// We're drawing into a child window.
nsIDeviceContext* devCtx = frame->PresContext()->DeviceContext();
nsCOMPtr<nsIRenderingContext> rc;
nsresult rv = devCtx->CreateRenderingContextInstance(*getter_AddRefs(rc));
if (NS_SUCCEEDED(rv)) {
rc->Init(devCtx, aContext);
nsIRenderingContext::AutoPushTranslation
push(rc, params->mOffsetToWidget.x, params->mOffsetToWidget.y);
nsLayoutUtils::PaintFrame(rc, frame, *params->mDirtyRegion,
params->mBackgroundColor,
nsLayoutUtils::PAINT_WIDGET_LAYERS);
}
} else {
aContext->NewPath();
aContext->SetColor(gfxRGBA(params->mBackgroundColor));
nsIntRect dirtyRect = aRegionToDraw.GetBounds();
aContext->Rectangle(
gfxRect(dirtyRect.x, dirtyRect.y, dirtyRect.width, dirtyRect.height));
aContext->Fill();
}
aContext->NewPath();
aContext->SetColor(gfxRGBA(params->mBackgroundColor));
nsIntRect dirtyRect = aRegionToDraw.GetBounds();
aContext->Rectangle(
gfxRect(dirtyRect.x, dirtyRect.y, dirtyRect.width, dirtyRect.height));
aContext->Fill();
}
NS_IMETHODIMP
PresShell::Paint(nsIView* aDisplayRoot,
nsIView* aViewToPaint,
PresShell::Paint(nsIView* aViewToPaint,
nsIWidget* aWidgetToPaint,
const nsRegion& aDirtyRegion,
const nsIntRegion& aIntDirtyRegion,
@ -6002,7 +5981,6 @@ PresShell::Paint(nsIView* aDisplayRoot,
#endif
NS_ASSERTION(!mIsDestroying, "painting a destroyed PresShell");
NS_ASSERTION(aDisplayRoot, "null view");
NS_ASSERTION(aViewToPaint, "null view");
NS_ASSERTION(aWidgetToPaint, "Can't paint without a widget");
@ -6010,7 +5988,7 @@ PresShell::Paint(nsIView* aDisplayRoot,
AUTO_LAYOUT_PHASE_ENTRY_POINT(presContext, Paint);
nsIFrame* frame = aPaintDefaultBackground
? nsnull : static_cast<nsIFrame*>(aDisplayRoot->GetClientData());
? nsnull : static_cast<nsIFrame*>(aViewToPaint->GetClientData());
bool isRetainingManager;
LayerManager* layerManager =
@ -6041,9 +6019,9 @@ PresShell::Paint(nsIView* aDisplayRoot,
frame->ClearPresShellsFromLastPaint();
}
nscolor bgcolor = ComputeBackstopColor(aDisplayRoot);
nscolor bgcolor = ComputeBackstopColor(aViewToPaint);
if (frame && aViewToPaint == aDisplayRoot) {
if (frame) {
// Defer invalidates that are triggered during painting, and discard
// invalidates of areas that are already being repainted.
// The layer system can trigger invalidates during painting
@ -6063,30 +6041,15 @@ PresShell::Paint(nsIView* aDisplayRoot,
return NS_OK;
}
if (frame) {
// Defer invalidates that are triggered during painting, and discard
// invalidates of areas that are already being repainted.
frame->BeginDeferringInvalidatesForDisplayRoot(aDirtyRegion);
}
nsRefPtr<ThebesLayer> root = layerManager->CreateThebesLayer();
if (root) {
root->SetVisibleRegion(aIntDirtyRegion);
layerManager->SetRoot(root);
}
if (!frame) {
bgcolor = NS_ComposeColors(bgcolor, mCanvasBackgroundColor);
}
PaintParams params =
{ frame,
aDisplayRoot->GetOffsetToWidget(aWidgetToPaint),
&aDirtyRegion,
bgcolor };
bgcolor = NS_ComposeColors(bgcolor, mCanvasBackgroundColor);
PaintParams params = { bgcolor };
layerManager->EndTransaction(DrawThebesLayer, &params);
if (frame) {
frame->EndDeferringInvalidatesForDisplayRoot();
}
presContext->NotifyDidPaintForSubtree();
return NS_OK;
}

7
view/public/nsIViewObserver.h
View File

@ -47,8 +47,8 @@ class nsIRenderingContext;
class nsGUIEvent;
#define NS_IVIEWOBSERVER_IID \
{ 0xc8ba5804, 0x2459, 0x4b62, \
{ 0xa4, 0x15, 0x02, 0x84, 0x1a, 0xd7, 0x93, 0xa7 } }
{ 0xdc283a18, 0x61cb, 0x468c, \
{ 0x8d, 0xb8, 0x9b, 0x81, 0xf7, 0xc9, 0x33, 0x25 } }
class nsIViewObserver : public nsISupports
{
@ -76,8 +76,7 @@ public:
* which is to paint some default background color over the dirty region.
* @return error status
*/
NS_IMETHOD Paint(nsIView* aDisplayRoot,
nsIView* aViewToPaint,
NS_IMETHOD Paint(nsIView* aViewToPaint,
nsIWidget* aWidgetToPaint,
const nsRegion& aDirtyRegion,
const nsIntRegion& aIntDirtyRegion,

15
view/src/nsViewManager.cpp
View File

@ -441,20 +441,11 @@ void nsViewManager::RenderViews(nsView *aView, nsIWidget *aWidget,
PRBool aPaintDefaultBackground,
PRBool aWillSendDidPaint)
{
nsView* displayRoot = GetDisplayRootFor(aView);
// Make sure we call Paint from the view manager that owns displayRoot.
// (Bug 485275)
nsViewManager* displayRootVM = displayRoot->GetViewManager();
if (displayRootVM && displayRootVM != this) {
displayRootVM->
RenderViews(aView, aWidget, aRegion, aIntRegion, aPaintDefaultBackground,
aWillSendDidPaint);
return;
}
NS_ASSERTION(GetDisplayRootFor(aView) == aView,
"Widgets that we paint must all be display roots");
if (mObserver) {
nsRegion region = ConvertRegionBetweenViews(aRegion, aView, displayRoot);
mObserver->Paint(displayRoot, aView, aWidget, region, aIntRegion,
mObserver->Paint(aView, aWidget, aRegion, aIntRegion,
aPaintDefaultBackground, aWillSendDidPaint);
if (!gFirstPaintTimestamp)
gFirstPaintTimestamp = PR_Now();