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Side by Side Diff: gfx/gtk_util.h

Issue 6246027: Move src/gfx/ to src/ui/gfx... (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: '' Created 9 years, 10 months ago
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1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef GFX_GTK_UTIL_H_ 5 #ifndef GFX_GTK_UTIL_H_
6 #define GFX_GTK_UTIL_H_ 6 #define GFX_GTK_UTIL_H_
7 #pragma once 7 #pragma once
8 8
9 #include <glib-object.h> 9 #include "ui/gfx/gtk_util.h"
10 #include <stdint.h> 10 // TODO(sail): remove this file once all includes have been updated.
11
12 #include <string>
13 #include <vector>
14
15 #include "base/scoped_ptr.h"
16
17 typedef struct _GdkPixbuf GdkPixbuf;
18 typedef struct _GdkRegion GdkRegion;
19 typedef struct _GdkCursor GdkCursor;
20
21 class CommandLine;
22 class SkBitmap;
23
24 namespace gfx {
25
26 class Rect;
27
28 // Call gtk_init() using the argc and argv from command_line.
29 // gtk_init() wants an argc and argv that it can mutate; we provide those,
30 // but leave the original CommandLine unaltered.
31 void GtkInitFromCommandLine(const CommandLine& command_line);
32
33 // Convert and copy a SkBitmap to a GdkPixbuf. NOTE: this uses BGRAToRGBA, so
34 // it is an expensive operation. The returned GdkPixbuf will have a refcount of
35 // 1, and the caller is responsible for unrefing it when done.
36 GdkPixbuf* GdkPixbufFromSkBitmap(const SkBitmap* bitmap);
37
38 // Modify the given region by subtracting the given rectangles.
39 void SubtractRectanglesFromRegion(GdkRegion* region,
40 const std::vector<Rect>& cutouts);
41
42 // Returns the resolution (DPI) used by pango. A negative values means the
43 // resolution hasn't been set.
44 double GetPangoResolution();
45
46 // Returns a static instance of a GdkCursor* object, sharable across the
47 // process. Caller must gdk_cursor_ref() it if they want to assume ownership.
48 GdkCursor* GetCursor(int type);
49
50 // Change windows accelerator style to GTK style. (GTK uses _ for
51 // accelerators. Windows uses & with && as an escape for &.)
52 std::string ConvertAcceleratorsFromWindowsStyle(const std::string& label);
53
54 // Removes the "&" accelerators from a Windows label.
55 std::string RemoveWindowsStyleAccelerators(const std::string& label);
56
57 // Makes a copy of |pixels| with the ordering changed from BGRA to RGBA.
58 // The caller is responsible for free()ing the data. If |stride| is 0, it's
59 // assumed to be 4 * |width|.
60 uint8_t* BGRAToRGBA(const uint8_t* pixels, int width, int height, int stride);
61
62 } // namespace gfx
63
64 namespace {
65 // A helper class that will g_object_unref |p| when it goes out of scope.
66 // This never adds a ref, it only unrefs.
67 template <typename Type>
68 struct GObjectUnrefer {
69 void operator()(Type* ptr) const {
70 if (ptr)
71 g_object_unref(ptr);
72 }
73 };
74 } // namespace
75
76 // It's not legal C++ to have a templatized typedefs, so we wrap it in a
77 // struct. When using this, you need to include ::Type. E.g.,
78 // ScopedGObject<GdkPixbufLoader>::Type loader(gdk_pixbuf_loader_new());
79 template<class T>
80 struct ScopedGObject {
81 typedef scoped_ptr_malloc<T, GObjectUnrefer<T> > Type;
82 };
83 11
84 #endif // GFX_GTK_UTIL_H_ 12 #endif // GFX_GTK_UTIL_H_
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