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Side by Side Diff: views/controls/image_view.h

Issue 8687031: views: Move the remaining files to ui/views/controls/. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 9 years ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef VIEWS_CONTROLS_IMAGE_VIEW_H_
6 #define VIEWS_CONTROLS_IMAGE_VIEW_H_
7 #pragma once
8
9 #include "third_party/skia/include/core/SkBitmap.h"
10 #include "views/view.h"
11
12 namespace gfx {
13 class Canvas;
14 }
15
16 namespace views {
17
18 /////////////////////////////////////////////////////////////////////////////
19 //
20 // ImageView class.
21 //
22 // An ImageView can display an image from an SkBitmap. If a size is provided,
23 // the ImageView will resize the provided image to fit if it is too big or will
24 // center the image if smaller. Otherwise, the preferred size matches the
25 // provided image size.
26 //
27 /////////////////////////////////////////////////////////////////////////////
28 class VIEWS_EXPORT ImageView : public View {
29 public:
30 enum Alignment {
31 LEADING = 0,
32 CENTER,
33 TRAILING
34 };
35
36 ImageView();
37 virtual ~ImageView();
38
39 // Set the bitmap that should be displayed.
40 void SetImage(const SkBitmap& bm);
41
42 // Set the bitmap that should be displayed from a pointer. Reset the image
43 // if the pointer is NULL. The pointer contents is copied in the receiver's
44 // bitmap.
45 void SetImage(const SkBitmap* bm);
46
47 // Returns the bitmap currently displayed or NULL of none is currently set.
48 // The returned bitmap is still owned by the ImageView.
49 const SkBitmap& GetImage();
50
51 // Set the desired image size for the receiving ImageView.
52 void SetImageSize(const gfx::Size& image_size);
53
54 // Return the preferred size for the receiving view. Returns false if the
55 // preferred size is not defined, which means that the view uses the image
56 // size.
57 bool GetImageSize(gfx::Size* image_size);
58
59 // Returns the actual bounds of the visible image inside the view.
60 gfx::Rect GetImageBounds() const;
61
62 // Reset the image size to the current image dimensions.
63 void ResetImageSize();
64
65 // Set / Get the horizontal alignment.
66 void SetHorizontalAlignment(Alignment ha);
67 Alignment GetHorizontalAlignment() const;
68
69 // Set / Get the vertical alignment.
70 void SetVerticalAlignment(Alignment va);
71 Alignment GetVerticalAlignment() const;
72
73 // Set / Get the tooltip text.
74 void SetTooltipText(const string16& tooltip);
75 string16 GetTooltipText() const;
76
77 // Overriden from View
78 virtual gfx::Size GetPreferredSize() OVERRIDE;
79 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
80 virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
81 virtual bool GetTooltipText(const gfx::Point& p,
82 string16* tooltip) const OVERRIDE;
83
84 private:
85 // Compute the image origin given the desired size and the receiver alignment
86 // properties.
87 gfx::Point ComputeImageOrigin(const gfx::Size& image_size) const;
88
89 // Whether the image size is set.
90 bool image_size_set_;
91
92 // The actual image size.
93 gfx::Size image_size_;
94
95 // The underlying bitmap.
96 SkBitmap image_;
97
98 // Horizontal alignment.
99 Alignment horiz_alignment_;
100
101 // Vertical alignment.
102 Alignment vert_alignment_;
103
104 // The current tooltip text.
105 string16 tooltip_text_;
106
107 DISALLOW_COPY_AND_ASSIGN(ImageView);
108 };
109
110 } // namespace views
111
112 #endif // VIEWS_CONTROLS_IMAGE_VIEW_H_
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