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cc / paint / paint_recorder.h [blame]
// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CC_PAINT_PAINT_RECORDER_H_
#define CC_PAINT_PAINT_RECORDER_H_
#include <memory>
#include "base/compiler_specific.h"
#include "cc/paint/paint_record.h"
#include "cc/paint/record_paint_canvas.h"
#include "ui/gfx/geometry/size.h"
namespace cc {
class CC_PAINT_EXPORT PaintRecorder {
public:
// Begins recording. The returned PaintCanvas doesn't support inspection of
// the current clip and the CTM during recording.
PaintCanvas* beginRecording();
PaintRecord finishRecordingAsPicture();
// Only valid while recording.
PaintCanvas* getRecordingCanvas() {
return is_recording_ ? &canvas_ : nullptr;
}
private:
bool is_recording_ = false;
RecordPaintCanvas canvas_;
};
class CC_PAINT_EXPORT InspectablePaintRecorder {
public:
InspectablePaintRecorder();
~InspectablePaintRecorder();
// Begins recording. The returned PaintCanvas supports inspection of the
// current clip and the CTM during recording. `size` doesn't affect the
// recorded results because all operations will be recorded regardless of it,
// but it determines the top-level device clip.
PaintCanvas* beginRecording(const gfx::Size& size);
PaintRecord finishRecordingAsPicture();
// Only valid while recording.
PaintCanvas* getRecordingCanvas() const {
DCHECK(!is_recording_ || canvas_);
return is_recording_ ? canvas_.get() : nullptr;
}
private:
bool is_recording_ = false;
std::unique_ptr<InspectableRecordPaintCanvas> canvas_;
gfx::Size size_;
};
} // namespace cc
#endif // CC_PAINT_PAINT_RECORDER_H_