mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
80 lines
2.6 KiB
C++
80 lines
2.6 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 "BasicContainerLayer.h"
|
|
#include <sys/types.h> // for int32_t
|
|
#include "BasicLayersImpl.h" // for ToData
|
|
#include "basic/BasicImplData.h" // for BasicImplData
|
|
#include "basic/BasicLayers.h" // for BasicLayerManager
|
|
#include "mozilla/gfx/BaseRect.h" // for BaseRect
|
|
#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 "nsPoint.h" // for nsIntPoint
|
|
#include "nsRect.h" // for nsIntRect
|
|
|
|
using namespace mozilla::gfx;
|
|
|
|
namespace mozilla {
|
|
namespace layers {
|
|
|
|
BasicContainerLayer::~BasicContainerLayer()
|
|
{
|
|
while (mFirstChild) {
|
|
ContainerRemoveChild(mFirstChild, this);
|
|
}
|
|
|
|
MOZ_COUNT_DTOR(BasicContainerLayer);
|
|
}
|
|
|
|
bool
|
|
BasicContainerLayer::ChildrenPartitionVisibleRegion(const nsIntRect& aInRect)
|
|
{
|
|
gfxMatrix transform;
|
|
if (!GetEffectiveTransform().CanDraw2D(&transform) ||
|
|
transform.HasNonIntegerTranslation())
|
|
return false;
|
|
|
|
nsIntPoint offset(int32_t(transform.x0), int32_t(transform.y0));
|
|
nsIntRect rect = aInRect.Intersect(GetEffectiveVisibleRegion().GetBounds() + offset);
|
|
nsIntRegion covered;
|
|
|
|
for (Layer* l = mFirstChild; l; l = l->GetNextSibling()) {
|
|
if (ToData(l)->IsHidden())
|
|
continue;
|
|
|
|
gfxMatrix childTransform;
|
|
if (!l->GetEffectiveTransform().CanDraw2D(&childTransform) ||
|
|
childTransform.HasNonIntegerTranslation() ||
|
|
l->GetEffectiveOpacity() != 1.0)
|
|
return false;
|
|
nsIntRegion childRegion = l->GetEffectiveVisibleRegion();
|
|
childRegion.MoveBy(int32_t(childTransform.x0), int32_t(childTransform.y0));
|
|
childRegion.And(childRegion, rect);
|
|
if (l->GetClipRect()) {
|
|
childRegion.And(childRegion, *l->GetClipRect() + offset);
|
|
}
|
|
nsIntRegion intersection;
|
|
intersection.And(covered, childRegion);
|
|
if (!intersection.IsEmpty())
|
|
return false;
|
|
covered.Or(covered, childRegion);
|
|
}
|
|
|
|
return covered.Contains(rect);
|
|
}
|
|
|
|
already_AddRefed<ContainerLayer>
|
|
BasicLayerManager::CreateContainerLayer()
|
|
{
|
|
NS_ASSERTION(InConstruction(), "Only allowed in construction phase");
|
|
nsRefPtr<ContainerLayer> layer = new BasicContainerLayer(this);
|
|
return layer.forget();
|
|
}
|
|
|
|
}
|
|
}
|