blob: 4764f2f4c47ad54db552920d81c2b1e6422b92d9 (
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
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
// Copyright 2018 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_VIEWS_CONTROLS_IMAGE_VIEW_BASE_H_
#define UI_VIEWS_CONTROLS_IMAGE_VIEW_BASE_H_
#include "base/macros.h"
#include "base/optional.h"
#include "ui/views/view.h"
namespace gfx {
class Canvas;
}
namespace views {
class VIEWS_EXPORT ImageViewBase : public View {
public:
enum Alignment { LEADING, CENTER, TRAILING };
ImageViewBase();
~ImageViewBase() override;
// Set the desired image size for the receiving ImageView.
void SetImageSize(const gfx::Size& image_size);
// Returns the actual bounds of the visible image inside the view.
gfx::Rect GetImageBounds() const;
// Reset the image size to the current image dimensions.
void ResetImageSize();
// Set / Get the horizontal alignment.
void SetHorizontalAlignment(Alignment ha);
Alignment GetHorizontalAlignment() const;
// Set / Get the vertical alignment.
void SetVerticalAlignment(Alignment va);
Alignment GetVerticalAlignment() const;
// Set / Get the tooltip text.
void SetTooltipText(const base::string16& tooltip);
base::string16 GetTooltipText() const;
// Set / Get the accessible name text.
void SetAccessibleName(const base::string16& name);
base::string16 GetAccessibleName() const;
// Overridden from View:
void OnPaint(gfx::Canvas* canvas) override = 0;
void GetAccessibleNodeData(ui::AXNodeData* node_data) override;
const char* GetClassName() const override = 0;
bool GetTooltipText(const gfx::Point& p,
base::string16* tooltip) const override;
gfx::Size CalculatePreferredSize() const override;
views::PaintInfo::ScaleType GetPaintScaleType() const override;
void OnBoundsChanged(const gfx::Rect& previous_bounds) override;
void PreferredSizeChanged() override;
protected:
// Returns the size the image will be painted.
virtual gfx::Size GetImageSize() const = 0;
// The requested image size.
base::Optional<gfx::Size> image_size_;
private:
friend class ImageViewTest;
// Recomputes and updates the |image_origin_|.
void UpdateImageOrigin();
// The origin of the image.
gfx::Point image_origin_;
// Horizontal alignment.
Alignment horizontal_alignment_ = Alignment::CENTER;
// Vertical alignment.
Alignment vertical_alignment_ = Alignment::CENTER;
// The current tooltip text.
base::string16 tooltip_text_;
// The current accessible name text.
base::string16 accessible_name_;
DISALLOW_COPY_AND_ASSIGN(ImageViewBase);
};
} // namespace views
#endif // UI_VIEWS_CONTROLS_IMAGE_VIEW_BASE_H_
|
