blob: 6d60f2bf1c19b86bb4a38f035ff338c9ab33ec7f [file] [log] [blame]
// Copyright (c) 2017 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 <ApplicationServices/ApplicationServices.h>
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/skia/include/core/SkBitmap.h"
struct SkIRect;
namespace cc {
class PaintCanvas;
namespace blink {
// Creates a bridge for painting into a PaintCanvas with a CGContext.
class PLATFORM_EXPORT GraphicsContextCanvas {
// Internally creates a bitmap the same size |paint_rect|, scaled by
// |bitmap_scale_factor|. Painting into the CgContext will go into the
// bitmap. Upon destruction, that bitmap will be painted into the
// canvas as the rectangle |paint_rect|. Users are expected to
// clip |paint_rect| to reasonable sizes to not create giant bitmaps.
// The |paint_rect| is in canvas device space. The CgContext is set
// up to be in exactly the same space as the canvas is at construction
// time.
const SkIRect& paint_rect,
SkScalar bitmap_scale_factor = 1);
CGContextRef CgContext();
void ReleaseIfNeeded();
cc::PaintCanvas* canvas_;
CGContextRef cg_context_;
SkBitmap offscreen_;
SkScalar bitmap_scale_factor_;
SkIRect paint_rect_;
} // namespace blink