]>
Dogcows Code - chaz/openbox/blob - render/mask.c
1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
3 mask.c for the Openbox window manager
4 Copyright (c) 2003 Ben Jansens
5 Copyright (c) 2003 Derek Foreman
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 See the COPYING file for a copy of the GNU General Public License.
24 RrPixmapMask
*RrPixmapMaskNew(const RrInstance
*inst
,
25 gint w
, gint h
, const gchar
*data
)
27 RrPixmapMask
*m
= g_new(RrPixmapMask
, 1);
31 /* round up to nearest byte */
32 m
->data
= g_memdup(data
, (w
+ 7) / 8 * h
);
33 m
->mask
= XCreateBitmapFromData(RrDisplay(inst
), RrRootWindow(inst
),
38 void RrPixmapMaskFree(RrPixmapMask
*m
)
41 XFreePixmap(RrDisplay(m
->inst
), m
->mask
);
47 void RrPixmapMaskDraw(Pixmap p
, const RrTextureMask
*m
, const RrRect
*area
)
50 if (m
->mask
== None
) return; /* no mask given */
52 /* set the clip region */
53 x
= area
->x
+ (area
->width
- m
->mask
->width
) / 2;
54 y
= area
->y
+ (area
->height
- m
->mask
->height
) / 2;
59 XSetClipMask(RrDisplay(m
->mask
->inst
), RrColorGC(m
->color
), m
->mask
->mask
);
60 XSetClipOrigin(RrDisplay(m
->mask
->inst
), RrColorGC(m
->color
), x
, y
);
62 /* fill in the clipped region */
63 XFillRectangle(RrDisplay(m
->mask
->inst
), p
, RrColorGC(m
->color
), x
, y
,
64 x
+ m
->mask
->width
, y
+ m
->mask
->height
);
66 /* unset the clip region */
67 XSetClipMask(RrDisplay(m
->mask
->inst
), RrColorGC(m
->color
), None
);
68 XSetClipOrigin(RrDisplay(m
->mask
->inst
), RrColorGC(m
->color
), 0, 0);
71 RrPixmapMask
*RrPixmapMaskCopy(const RrPixmapMask
*src
)
73 RrPixmapMask
*m
= g_new(RrPixmapMask
, 1);
75 m
->width
= src
->width
;
76 m
->height
= src
->height
;
77 /* round up to nearest byte */
78 m
->data
= g_memdup(src
->data
, (src
->width
+ 7) / 8 * src
->height
);
79 m
->mask
= XCreateBitmapFromData(RrDisplay(m
->inst
), RrRootWindow(m
->inst
),
80 m
->data
, m
->width
, m
->height
);
This page took 0.041313 seconds and 4 git commands to generate.