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// Copyright 2015 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 "ui/compositor/clip_recorder.h"
#include "cc/playback/clip_display_item.h"
#include "cc/playback/clip_path_display_item.h"
#include "cc/playback/display_item_list.h"
#include "ui/compositor/paint_context.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/rect_conversions.h"
#include "ui/gfx/path.h"
#include "ui/gfx/skia_util.h"
namespace ui {
ClipRecorder::ClipRecorder(const PaintContext& context)
: context_(context), num_closers_(0) {
}
ClipRecorder::~ClipRecorder() {
for (int i = num_closers_ - 1; i >= 0; --i) {
switch (closers_[i]) {
case CLIP_RECT:
context_.list_->CreateAndAppendPairedEndItem<cc::EndClipDisplayItem>();
break;
case CLIP_PATH:
context_.list_
->CreateAndAppendPairedEndItem<cc::EndClipPathDisplayItem>();
break;
}
}
}
void ClipRecorder::RecordCloser(Closer closer) {
DCHECK_LT(num_closers_, kMaxOpCount);
closers_[num_closers_++] = closer;
}
void ClipRecorder::ClipRect(const gfx::Rect& clip_rect) {
bool antialias = false;
context_.list_->CreateAndAppendPairedBeginItem<cc::ClipDisplayItem>(
clip_rect, std::vector<SkRRect>(), antialias);
RecordCloser(CLIP_RECT);
}
void ClipRecorder::ClipPath(const gfx::Path& clip_path) {
bool antialias = false;
context_.list_->CreateAndAppendPairedBeginItem<cc::ClipPathDisplayItem>(
clip_path, antialias);
RecordCloser(CLIP_PATH);
}
void ClipRecorder::ClipPathWithAntiAliasing(const gfx::Path& clip_path) {
bool antialias = true;
context_.list_->CreateAndAppendPairedBeginItem<cc::ClipPathDisplayItem>(
clip_path, antialias);
RecordCloser(CLIP_PATH);
}
} // namespace ui
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