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authorfluxgen <fluxgen>2006-10-16 18:47:27 (GMT)
committerfluxgen <fluxgen>2006-10-16 18:47:27 (GMT)
commit9f4baeb0fc7107f3d0a35dccd6027cecb5e5b72d (patch)
tree8e32cc6c595f90083739d57531dd18a38dada8f8 /src/FbTk/CachedPixmap.hh
parent0e2a8b9a433874b98432d56883d5f54452dc5946 (diff)
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cached pixmap helper, works like auto ptr for cached pixmaps
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1// CachedPixmap.hh
2// Copyright (c) 2006 Fluxbox Team (fluxgen at fluxbox dot org)
3//
4// Permission is hereby granted, free of charge, to any person obtaining a
5// copy of this software and associated documentation files (the "Software"),
6// to deal in the Software without restriction, including without limitation
7// the rights to use, copy, modify, merge, publish, distribute, sublicense,
8// and/or sell copies of the Software, and to permit persons to whom the
9// Software is furnished to do so, subject to the following conditions:
10//
11// The above copyright notice and this permission notice shall be included in
12// all copies or substantial portions of the Software.
13//
14// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20// DEALINGS IN THE SOFTWARE.
21
22
23#ifndef FBTK_CACHED_PIXMAP_H
24#define FBTK_CACHED_PIXMAP_H
25
26#include <X11/Xlib.h>
27
28namespace FbTk {
29
30class ImageControl;
31
32/// holds cached pixmap and releases it from cache when it dies
33class CachedPixmap {
34public:
35 /// @param ctrl the image cache control
36 explicit CachedPixmap( FbTk::ImageControl& ctrl );
37 /**
38 * @param ctrl cache control
39 * @param pm pixmap to store
40 */
41 CachedPixmap( FbTk::ImageControl& ctrl,
42 Pixmap pm );
43 ~CachedPixmap();
44
45 operator Pixmap() const {
46 return m_pixmap;
47 }
48
49 /**
50 * Sets new pixmap and releases the old pixmap from cache
51 * @param pm the new pixmap to set
52 */
53 void reset( Pixmap pm );
54
55 /// @return pixmap
56 Pixmap operator *() const {
57 return m_pixmap;
58 }
59
60public:
61 /// releases pixmap from cache
62 void destroy();
63
64 Pixmap m_pixmap; //< cached pixmap
65 FbTk::ImageControl &m_ctrl; //< cache control
66};
67
68} // namespace CachedPixmap
69
70#endif // FBTK_CACHED_PIXMAP