зеркало из https://github.com/mozilla/gecko-dev.git
Bug 539356 - Part 6 - Add compositing paint flashing to BasicLayers. r=roc
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Коммит
8f19d77bb2
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@ -21,6 +21,7 @@
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#include "BasicLayersImpl.h"
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#include "BasicThebesLayer.h"
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#include "BasicContainerLayer.h"
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#include "mozilla/Preferences.h"
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using namespace mozilla::gfx;
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@ -434,6 +435,9 @@ BasicLayerManager::EndTransactionInternal(DrawThebesLayerCallback aCallback,
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}
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PaintLayer(mTarget, mRoot, aCallback, aCallbackData, nsnull);
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if (mWidget) {
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FlashWidgetUpdateArea(mTarget);
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}
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if (!mTransactionIncomplete) {
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// Clear out target if we have a complete transaction.
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@ -466,6 +470,27 @@ BasicLayerManager::EndTransactionInternal(DrawThebesLayerCallback aCallback,
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return !mTransactionIncomplete;
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}
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void
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BasicLayerManager::FlashWidgetUpdateArea(gfxContext *aContext)
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{
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static bool sWidgetFlashingEnabled;
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static bool sWidgetFlashingPrefCached = false;
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if (!sWidgetFlashingPrefCached) {
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sWidgetFlashingPrefCached = true;
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mozilla::Preferences::AddBoolVarCache(&sWidgetFlashingEnabled,
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"nglayout.debug.widget_update_flashing");
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}
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if (sWidgetFlashingEnabled) {
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float r = float(rand()) / RAND_MAX;
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float g = float(rand()) / RAND_MAX;
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float b = float(rand()) / RAND_MAX;
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aContext->SetColor(gfxRGBA(r, g, b, 0.2));
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aContext->Paint();
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}
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}
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bool
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BasicLayerManager::EndEmptyTransaction()
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{
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@ -172,6 +172,8 @@ protected:
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void* aCallbackData,
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EndTransactionFlags aFlags = END_DEFAULT);
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void FlashWidgetUpdateArea(gfxContext* aContext);
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// Widget whose surface should be used as the basis for ThebesLayer
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// buffers.
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nsIWidget* mWidget;
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@ -353,6 +353,10 @@ pref("nglayout.enable_drag_images", true);
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// enable/disable paint flashing --- useful for debugging
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pref("nglayout.debug.paint_flashing", false);
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// enable/disable widget update area flashing --- only supported with
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// BasicLayers (other layer managers always update the entire widget area)
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pref("nglayout.debug.widget_update_flashing", false);
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// scrollbar snapping region
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// 0 - off
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// 1 and higher - slider thickness multiple
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