libdockapp/src/dapixmap.c

   1 /*
   2  * Copyright (c) 1999-2005 Alfredo K. Kojima, Alban Hertroys
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a copy
   5  * of this software and associated documentation files (the "Software"), to deal
   6  * in the Software without restriction, including without limitation the rights
   7  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   8  * copies of the Software, and to permit persons to whom the Software is
   9  * 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 THE
  17  * AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  18  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  19  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  20
  21  */
  22
  23 #include <X11/Xlib.h>
  24 #include <X11/xpm.h>
  25 #include <X11/extensions/shape.h>
  26 #include <X11/Xatom.h>
  27
  28 #include "dockapp.h"
  29 #include "daargs.h"
  30
  31 extern struct DAContext *_daContext;
  32
  33 /* Local typedef */
  34 typedef enum {
  35         daXpmSourceData,
  36         daXpmSourceFile
  37 } daXpmSource;
  38
  39 /* Function prototype */
  40 Bool _daMakePixmap(daXpmSource source,
  41                    char **data, Pixmap *pixmap, Pixmap *mask,
  42                    unsigned short *width, unsigned short *height);
  43
  44
  45
  46 void
  47 DASetShapeWithOffset(Pixmap shapeMask, int x_ofs, int y_ofs)
  48 {
  49         DASetShapeWithOffsetForWindow(DAWindow, shapeMask, x_ofs, y_ofs);
  50 }
  51
  52 void
  53 DASetShapeWithOffsetForWindow(Window window, Pixmap shapeMask,
  54                               int x_ofs, int y_ofs)
  55 {
  56         XShapeCombineMask(DADisplay, window, ShapeBounding, -x_ofs, -y_ofs,
  57                           shapeMask, ShapeSet);
  58         XFlush(DADisplay);
  59 }
  60
  61 void
  62 DASetPixmap(Pixmap pixmap)
  63 {
  64         DASetPixmapForWindow(DAWindow, pixmap);
  65 }
  66
  67 void
  68 DASetPixmapForWindow(Window window, Pixmap pixmap)
  69 {
  70         XSetWindowBackgroundPixmap(DADisplay, window, pixmap);
  71         XClearWindow(DADisplay, window);
  72         XFlush(DADisplay);
  73 }
  74
  75 Pixmap
  76 DAMakePixmap(void)
  77 {
  78         return (XCreatePixmap(DADisplay, DAWindow,
  79                               _daContext->width, _daContext->height,
  80                               DADepth));
  81 }
  82
  83 Pixmap
  84 DAMakeShape(void)
  85 {
  86         return (XCreatePixmap(DADisplay, DAWindow,
  87                               _daContext->width, _daContext->height,
  88                               1));
  89 }
  90
  91 Pixmap
  92 DAMakeShapeFromData(char *data, unsigned int width, unsigned int height)
  93 {
  94         return (XCreateBitmapFromData(DADisplay, DAWindow, data,
  95                                       width, height));
  96 }
  97
  98 Pixmap
  99 DAMakeShapeFromFile(char *filename)
 100 {
 101         Pixmap shape;
 102         unsigned int width, height;
 103         int result, x_hot, y_hot;
 104
 105         result = XReadBitmapFile(DADisplay, DAWindow, filename, &width, &height,
 106                                  &shape, &x_hot, &y_hot);
 107
 108         switch (result) {
 109         case BitmapOpenFailed:
 110                 DAWarning("bitmap file %s cannot be opened.", filename);
 111                 break;
 112
 113         case BitmapFileInvalid:
 114                 DAWarning("bitmap file %s not valid.", filename);
 115                 break;
 116
 117         case BitmapNoMemory:
 118                 DAWarning("insufficient memory to open bitmap file %s.",
 119                           filename);
 120                 break;
 121         }
 122
 123         return shape;
 124 }
 125
 126 Bool
 127 DAMakePixmapFromData(char **data, Pixmap *pixmap, Pixmap *mask,
 128                      unsigned short *width, unsigned short *height)
 129 {
 130         return _daMakePixmap(daXpmSourceData, data,
 131                              pixmap, mask,
 132                              width, height);
 133 }
 134
 135 Bool
 136 DAMakePixmapFromFile(char *filename, Pixmap *pixmap, Pixmap *mask,
 137                      unsigned short *width, unsigned short *height)
 138 {
 139         if (access(filename, R_OK) < 0)
 140                 return False;
 141
 142         return _daMakePixmap(daXpmSourceFile, (char **)filename,
 143                              pixmap, mask,
 144                              width, height);
 145 }
 146
 147
 148
 149 Bool
 150 _daMakePixmap(daXpmSource source,
 151               char **data, Pixmap *pixmap, Pixmap *mask,
 152               unsigned short *width, unsigned short *height)
 153 {
 154         XpmAttributes xpmAttr;
 155
 156         xpmAttr.valuemask = XpmCloseness;
 157         xpmAttr.closeness = 40000;
 158
 159
 160         if (source == daXpmSourceData
 161             && (XpmCreatePixmapFromData(
 162                         DADisplay, DAWindow, data, pixmap, mask, &xpmAttr) != 0))
 163                 return False;
 164
 165         else if (source == daXpmSourceFile
 166                  && (XpmReadFileToPixmap(
 167                              DADisplay, DAWindow, (char *)data, pixmap, mask, &xpmAttr) != 0))
 168                 return False;
 169
 170         *width = xpmAttr.width;
 171         *height = xpmAttr.height;
 172
 173         return True;
 174 }
 175