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// Copyright 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cc/picture_layer.h"
#include "cc/layer_tree_impl.h"
#include "cc/picture_layer_impl.h"
#include "ui/gfx/rect_conversions.h"
namespace cc {
scoped_refptr<PictureLayer> PictureLayer::create(ContentLayerClient* client) {
return make_scoped_refptr(new PictureLayer(client));
}
PictureLayer::PictureLayer(ContentLayerClient* client) :
client_(client),
pile_(make_scoped_refptr(new PicturePile())),
is_mask_(false) {
}
PictureLayer::~PictureLayer() {
}
bool PictureLayer::drawsContent() const {
return Layer::drawsContent() && client_;
}
scoped_ptr<LayerImpl> PictureLayer::createLayerImpl(LayerTreeImpl* treeImpl) {
return PictureLayerImpl::create(treeImpl, id()).PassAs<LayerImpl>();
}
void PictureLayer::pushPropertiesTo(LayerImpl* base_layer) {
Layer::pushPropertiesTo(base_layer);
PictureLayerImpl* layer_impl = static_cast<PictureLayerImpl*>(base_layer);
layer_impl->SetIsMask(is_mask_);
layer_impl->CreateTilingSet();
layer_impl->invalidation_.Clear();
layer_impl->invalidation_.Swap(pile_invalidation_);
pile_->PushPropertiesTo(layer_impl->pile_);
layer_impl->SyncFromActiveLayer();
}
void PictureLayer::setLayerTreeHost(LayerTreeHost* host) {
Layer::setLayerTreeHost(host);
if (host)
pile_->SetMinContentsScale(host->settings().minimumContentsScale);
}
void PictureLayer::setNeedsDisplayRect(const gfx::RectF& layer_rect) {
gfx::Rect rect = gfx::ToEnclosedRect(layer_rect);
if (!rect.IsEmpty()) {
// Clamp invalidation to the layer bounds.
rect.Intersect(gfx::Rect(bounds()));
pending_invalidation_.Union(rect);
}
Layer::setNeedsDisplayRect(layer_rect);
}
void PictureLayer::update(ResourceUpdateQueue&, const OcclusionTracker*,
RenderingStats* stats) {
// Do not early-out of this function so that PicturePile::Update has a chance
// to record pictures due to changing visibility of this layer.
pile_->Resize(bounds());
// Calling paint in WebKit can sometimes cause invalidations, so save
// off the invalidation prior to calling update.
pile_invalidation_.Swap(pending_invalidation_);
pending_invalidation_.Clear();
gfx::Rect visible_layer_rect = gfx::ToEnclosingRect(
gfx::ScaleRect(visibleContentRect(), 1.f / contentsScaleX()));
pile_->Update(client_, pile_invalidation_, visible_layer_rect, stats);
}
void PictureLayer::setIsMask(bool is_mask) {
is_mask_ = is_mask;
}
} // namespace cc
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