diff options
Diffstat (limited to 'apps/plugins/lib/gray_drawrect.c')
-rw-r--r-- | apps/plugins/lib/gray_drawrect.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/apps/plugins/lib/gray_drawrect.c b/apps/plugins/lib/gray_drawrect.c new file mode 100644 index 0000000000..bd0bb71852 --- /dev/null +++ b/apps/plugins/lib/gray_drawrect.c | |||
@@ -0,0 +1,62 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Grayscale framework | ||
11 | * gray_drawrect() function | ||
12 | * | ||
13 | * This is a generic framework to use grayscale display within Rockbox | ||
14 | * plugins. It obviously does not work for the player. | ||
15 | * | ||
16 | * Copyright (C) 2004 Jens Arnold | ||
17 | * | ||
18 | * All files in this archive are subject to the GNU General Public License. | ||
19 | * See the file COPYING in the source tree root for full license agreement. | ||
20 | * | ||
21 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
22 | * KIND, either express or implied. | ||
23 | * | ||
24 | ****************************************************************************/ | ||
25 | |||
26 | #ifndef SIMULATOR /* not for simulator by now */ | ||
27 | #include "plugin.h" | ||
28 | |||
29 | #ifdef HAVE_LCD_BITMAP /* and also not for the Player */ | ||
30 | #include "gray.h" | ||
31 | |||
32 | /*--------------------------------------------------------------------------- | ||
33 | Draw a (hollow) rectangle with the current drawinfo | ||
34 | ---------------------------------------------------------------------------- | ||
35 | See gray_drawpixel() for details | ||
36 | */ | ||
37 | void gray_drawrect(int x, int y, int nx, int ny) | ||
38 | { | ||
39 | int x2, y2; | ||
40 | |||
41 | if ((unsigned) x >= (unsigned) _graybuf->width | ||
42 | || (unsigned) y >= (unsigned) _graybuf->height) | ||
43 | return; | ||
44 | |||
45 | if ((unsigned) (y + ny) >= (unsigned) _graybuf->height) /* clip bottom */ | ||
46 | ny = _graybuf->height - y; | ||
47 | |||
48 | if ((unsigned) (x + nx) >= (unsigned) _graybuf->width) /* clip right */ | ||
49 | nx = _graybuf->width - x; | ||
50 | |||
51 | x2 = x + nx - 1; | ||
52 | y2 = y + ny - 1; | ||
53 | |||
54 | gray_horline(x, x2, y); | ||
55 | gray_horline(x, x2, y2); | ||
56 | gray_verline(x, y, y2); | ||
57 | gray_verline(x2, y, y2); | ||
58 | } | ||
59 | |||
60 | #endif // #ifdef HAVE_LCD_BITMAP | ||
61 | #endif // #ifndef SIMULATOR | ||
62 | |||