cursor.c

   1 /*
   2  * Copyright 1989 Massachusetts Institute of Technology
   3  *
   4  * Permission to use, copy, modify, and distribute this software and its
   5  * documentation for any purpose and without fee is hereby granted, provided
   6  * that the above copyright notice appear in all copies and that both that
   7  * copyright notice and this permission notice appear in supporting
   8  * documentation, and that the name of M.I.T. not be used in advertising
   9  * or publicity pertaining to distribution of the software without specific,
  10  * written prior permission.  M.I.T. makes no representations about the
  11  * suitability of this software for any purpose.  It is provided "as is"
  12  * without express or implied warranty.
  13  *
  14  * M.I.T. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL M.I.T.
  16  * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  17  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  18  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  19  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  20  */
  21
  22 /***********************************************************************
  23  *
  24  * $XConsortium: cursor.c,v 1.10 89/12/14 14:52:23 jim Exp $
  25  *
  26  * cursor creation code
  27  *
  28  * 05-Apr-89 Thomas E. LaStrange        File created
  29  *
  30  ***********************************************************************/
  31
  32 #include <stdio.h>
  33 #include "twm.h"
  34 #include <X11/Xos.h>
  35 #include "screen.h"
  36 #include "util.h"
  37
  38 void NewBitmapCursor();
  39
  40 static struct _CursorName {
  41     char                *name;
  42     unsigned int        shape;
  43     Cursor              cursor;
  44 } cursor_names[] = {
  45
  46 {"X_cursor",            XC_X_cursor,            None},
  47 {"arrow",               XC_arrow,               None},
  48 {"based_arrow_down",    XC_based_arrow_down,    None},
  49 {"based_arrow_up",      XC_based_arrow_up,      None},
  50 {"boat",                XC_boat,                None},
  51 {"bogosity",            XC_bogosity,            None},
  52 {"bottom_left_corner",  XC_bottom_left_corner,  None},
  53 {"bottom_right_corner", XC_bottom_right_corner, None},
  54 {"bottom_side",         XC_bottom_side,         None},
  55 {"bottom_tee",          XC_bottom_tee,          None},
  56 {"box_spiral",          XC_box_spiral,          None},
  57 {"center_ptr",          XC_center_ptr,          None},
  58 {"circle",              XC_circle,              None},
  59 {"clock",               XC_clock,               None},
  60 {"coffee_mug",          XC_coffee_mug,          None},
  61 {"cross",               XC_cross,               None},
  62 {"cross_reverse",       XC_cross_reverse,       None},
  63 {"crosshair",           XC_crosshair,           None},
  64 {"diamond_cross",       XC_diamond_cross,       None},
  65 {"dot",                 XC_dot,                 None},
  66 {"dotbox",              XC_dotbox,              None},
  67 {"double_arrow",        XC_double_arrow,        None},
  68 {"draft_large",         XC_draft_large,         None},
  69 {"draft_small",         XC_draft_small,         None},
  70 {"draped_box",          XC_draped_box,          None},
  71 {"exchange",            XC_exchange,            None},
  72 {"fleur",               XC_fleur,               None},
  73 {"gobbler",             XC_gobbler,             None},
  74 {"gumby",               XC_gumby,               None},
  75 {"hand1",               XC_hand1,               None},
  76 {"hand2",               XC_hand2,               None},
  77 {"heart",               XC_heart,               None},
  78 {"icon",                XC_icon,                None},
  79 {"iron_cross",          XC_iron_cross,          None},
  80 {"left_ptr",            XC_left_ptr,            None},
  81 {"left_side",           XC_left_side,           None},
  82 {"left_tee",            XC_left_tee,            None},
  83 {"leftbutton",          XC_leftbutton,          None},
  84 {"ll_angle",            XC_ll_angle,            None},
  85 {"lr_angle",            XC_lr_angle,            None},
  86 {"man",                 XC_man,                 None},
  87 {"middlebutton",        XC_middlebutton,        None},
  88 {"mouse",               XC_mouse,               None},
  89 {"pencil",              XC_pencil,              None},
  90 {"pirate",              XC_pirate,              None},
  91 {"plus",                XC_plus,                None},
  92 {"question_arrow",      XC_question_arrow,      None},
  93 {"right_ptr",           XC_right_ptr,           None},
  94 {"right_side",          XC_right_side,          None},
  95 {"right_tee",           XC_right_tee,           None},
  96 {"rightbutton",         XC_rightbutton,         None},
  97 {"rtl_logo",            XC_rtl_logo,            None},
  98 {"sailboat",            XC_sailboat,            None},
  99 {"sb_down_arrow",       XC_sb_down_arrow,       None},
 100 {"sb_h_double_arrow",   XC_sb_h_double_arrow,   None},
 101 {"sb_left_arrow",       XC_sb_left_arrow,       None},
 102 {"sb_right_arrow",      XC_sb_right_arrow,      None},
 103 {"sb_up_arrow",         XC_sb_up_arrow,         None},
 104 {"sb_v_double_arrow",   XC_sb_v_double_arrow,   None},
 105 {"shuttle",             XC_shuttle,             None},
 106 {"sizing",              XC_sizing,              None},
 107 {"spider",              XC_spider,              None},
 108 {"spraycan",            XC_spraycan,            None},
 109 {"star",                XC_star,                None},
 110 {"target",              XC_target,              None},
 111 {"tcross",              XC_tcross,              None},
 112 {"top_left_arrow",      XC_top_left_arrow,      None},
 113 {"top_left_corner",     XC_top_left_corner,     None},
 114 {"top_right_corner",    XC_top_right_corner,    None},
 115 {"top_side",            XC_top_side,            None},
 116 {"top_tee",             XC_top_tee,             None},
 117 {"trek",                XC_trek,                None},
 118 {"ul_angle",            XC_ul_angle,            None},
 119 {"umbrella",            XC_umbrella,            None},
 120 {"ur_angle",            XC_ur_angle,            None},
 121 {"watch",               XC_watch,               None},
 122 {"xterm",               XC_xterm,               None},
 123 };
 124
 125 void NewFontCursor (cp, str)
 126     Cursor *cp;
 127     char *str;
 128 {
 129     int i;
 130
 131     for (i = 0; i < sizeof(cursor_names)/sizeof(struct _CursorName); i++)
 132     {
 133         if (strcmp(str, cursor_names[i].name) == 0)
 134         {
 135             if (cursor_names[i].cursor == None)
 136                 cursor_names[i].cursor = XCreateFontCursor(dpy,
 137                         cursor_names[i].shape);
 138             *cp = cursor_names[i].cursor;
 139             return;
 140         }
 141     }
 142     fprintf (stderr, "%s:  unable to find font cursor \"%s\"\n",
 143              ProgramName, str);
 144 }
 145
 146 void NewBitmapCursor(cp, source, mask)
 147 Cursor *cp;
 148 char *source, *mask;
 149 {
 150     XColor fore, back;
 151     int hotx, hoty;
 152     int sx, sy, mx, my;
 153     unsigned int sw, sh, mw, mh;
 154     Pixmap spm, mpm;
 155     Colormap cmap = Scr->TwmRoot.cmaps.cwins[0]->colormap->c;
 156
 157     fore.pixel = Scr->Black;
 158     XQueryColor(dpy, cmap, &fore);
 159     back.pixel = Scr->White;
 160     XQueryColor(dpy, cmap, &back);
 161
 162     spm = GetBitmap(source);
 163     if ((hotx = HotX) < 0) hotx = 0;
 164     if ((hoty = HotY) < 0) hoty = 0;
 165     mpm = GetBitmap(mask);
 166
 167     /* make sure they are the same size */
 168
 169     XGetGeometry(dpy, spm, &JunkRoot, &sx, &sy, &sw, &sh, &JunkBW,&JunkDepth);
 170     XGetGeometry(dpy, mpm, &JunkRoot, &mx, &my, &mw, &mh, &JunkBW,&JunkDepth);
 171     if (sw != mw || sh != mh)
 172     {
 173         fprintf (stderr,
 174                  "%s:  cursor bitmaps \"%s\" and \"%s\" not the same size\n",
 175                  ProgramName, source, mask);
 176         return;
 177     }
 178     *cp = XCreatePixmapCursor(dpy, spm, mpm, &fore, &back, hotx,hoty);
 179 }