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Diffstat (limited to 'src/FbTk/Transparent.hh')
-rw-r--r-- | src/FbTk/Transparent.hh | 70 |
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diff --git a/src/FbTk/Transparent.hh b/src/FbTk/Transparent.hh new file mode 100644 index 0000000..fe29826 --- /dev/null +++ b/src/FbTk/Transparent.hh | |||
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1 | // Transparent.hh for FbTk - Fluxbox Toolkit | ||
2 | // Copyright (c) 2003 Henrik Kinnunen (fluxgen(at)users.sourceforge.net) | ||
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 | // $Id: Transparent.hh,v 1.3 2003/05/13 21:16:27 fluxgen Exp $ | ||
23 | |||
24 | #ifndef FBTK_TRANSPARENT_HH | ||
25 | #define FBTK_TRANSPARENT_HH | ||
26 | |||
27 | #include <X11/Xlib.h> | ||
28 | |||
29 | namespace FbTk { | ||
30 | |||
31 | /// renders to drawable together with an alpha mask | ||
32 | class Transparent { | ||
33 | public: | ||
34 | Transparent(Drawable source, Drawable dest, unsigned char alpha, int screen_num); | ||
35 | ~Transparent(); | ||
36 | /// sets alpha value | ||
37 | void setAlpha(unsigned char alpha); | ||
38 | /// sets source drawable | ||
39 | void setSource(Drawable src, int screen_num); | ||
40 | /// sets destination drawable | ||
41 | void setDest(Drawable dest, int screen_num); | ||
42 | /** | ||
43 | renders to dest from src with specified coordinates and size | ||
44 | */ | ||
45 | void render(int src_x, int src_y, | ||
46 | int dest_x, int dest_y, | ||
47 | unsigned int width, unsigned int height) const; | ||
48 | |||
49 | unsigned char alpha() const { return m_alpha; } | ||
50 | Drawable dest() const { return m_dest; } | ||
51 | Drawable source() const { return m_source; } | ||
52 | |||
53 | private: | ||
54 | void freeAlpha(); | ||
55 | void allocAlpha(unsigned char newval); | ||
56 | unsigned long m_alpha_pic; | ||
57 | unsigned long m_src_pic; | ||
58 | unsigned long m_dest_pic; | ||
59 | Drawable m_source, m_dest; | ||
60 | unsigned char m_alpha; | ||
61 | |||
62 | static bool s_init; | ||
63 | static bool s_render; ///< wheter we have RENDER support | ||
64 | |||
65 | }; | ||
66 | |||
67 | }; // end namespace FbTk | ||
68 | |||
69 | #endif // FBTK_TRANSPARENT_HH | ||
70 | |||