blob: 51e196e2c7107732a2efbae25fe0afbd75a453f8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
// 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.
#ifndef UI_COMPOSITOR_CANVAS_PAINTER_H_
#define UI_COMPOSITOR_CANVAS_PAINTER_H_
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "ui/compositor/compositor_export.h"
#include "ui/compositor/paint_context.h"
#include "ui/gfx/geometry/rect.h"
namespace cc {
class DisplayItemList;
}
namespace ui {
// This class provides a simple helper for rasterizing from a PaintContext
// interface directly into a bitmap. After constructing an instance of a
// CanvasPainter, the context() can be used to do painting using the normal
// composited paint paths. When the painter is destroyed, any painting done
// with the context() will be rastered into the provided output bitmap.
//
// TODO(enne): rename this class to be PaintContextRasterizer or some such.
class COMPOSITOR_EXPORT CanvasPainter {
public:
CanvasPainter(SkBitmap* output,
const gfx::Size& output_size,
float device_scale_factor,
SkColor clear_color,
bool is_pixel_canvas);
~CanvasPainter();
const PaintContext& context() const { return context_; }
private:
friend class CanvasPainterTest;
SkBitmap* const output_;
const gfx::Size pixel_output_size_;
const float raster_scale_;
const SkColor clear_color_;
scoped_refptr<cc::DisplayItemList> list_;
PaintContext context_;
DISALLOW_COPY_AND_ASSIGN(CanvasPainter);
};
} // namespace ui
#endif // UI_COMPOSITOR_CANVAS_PAINTER_H_
|
