src/libs/glut/glutCursor.cpp

   1 /***********************************************************
   2  *      Copyright (C) 1997, Be Inc.  Copyright (C) 1999, Jake Hamby.
   3  *
   4  * This program is freely distributable without licensing fees
   5  * and is provided without guarantee or warrantee expressed or
   6  * implied. This program is -not- in the public domain.
   7  *
   8  *
   9  *  FILE:       glutCursor.cpp
  10  *
  11  *      DESCRIPTION:    code for handling custom mouse cursors
  12  ***********************************************************/
  13
  14 /***********************************************************
  15  *      Headers
  16  ***********************************************************/
  17 #include <GL/glut.h>
  18 #include "glutint.h"
  19 #include "glutState.h"
  20 #include "glutCursors.h"
  21
  22 static const unsigned char *cursorTable[] = {
  23   XC_arrow,               /* GLUT_CURSOR_RIGHT_ARROW */
  24   XC_top_left_arrow,      /* GLUT_CURSOR_LEFT_ARROW */
  25   XC_hand1,               /* GLUT_CURSOR_INFO */
  26   XC_pirate,              /* GLUT_CURSOR_DESTROY */
  27   XC_question_arrow,      /* GLUT_CURSOR_HELP */
  28   XC_exchange,            /* GLUT_CURSOR_CYCLE */
  29   XC_spraycan,            /* GLUT_CURSOR_SPRAY */
  30   XC_watch,               /* GLUT_CURSOR_WAIT */
  31   XC_xterm,               /* GLUT_CURSOR_TEXT */
  32   XC_crosshair,           /* GLUT_CURSOR_CROSSHAIR */
  33   XC_sb_v_double_arrow,   /* GLUT_CURSOR_UP_DOWN */
  34   XC_sb_h_double_arrow,   /* GLUT_CURSOR_LEFT_RIGHT */
  35   XC_top_side,            /* GLUT_CURSOR_TOP_SIDE */
  36   XC_bottom_side,         /* GLUT_CURSOR_BOTTOM_SIDE */
  37   XC_left_side,           /* GLUT_CURSOR_LEFT_SIDE */
  38   XC_right_side,          /* GLUT_CURSOR_RIGHT_SIDE */
  39   XC_top_left_corner,     /* GLUT_CURSOR_TOP_LEFT_CORNER */
  40   XC_top_right_corner,    /* GLUT_CURSOR_TOP_RIGHT_CORNER */
  41   XC_bottom_right_corner, /* GLUT_CURSOR_BOTTOM_RIGHT_CORNER */
  42   XC_bottom_left_corner,  /* GLUT_CURSOR_BOTTOM_LEFT_CORNER */
  43 };
  44
  45 /***********************************************************
  46  *      FUNCTION:       glutSetCursor (4.13)
  47  *
  48  *      DESCRIPTION:  set a new mouse cursor for current window
  49  ***********************************************************/
  50 void glutSetCursor(int cursor) {
  51         gState.currentWindow->Window()->Lock();
  52         gState.currentWindow->cursor = cursor;
  53         __glutSetCursor(cursor);
  54         gState.currentWindow->Window()->Unlock();
  55 }
  56
  57 /***********************************************************
  58  *      FUNCTION:       __glutSetCursor
  59  *
  60  *      DESCRIPTION:  the actual cursor changing routine
  61  ***********************************************************/
  62 void __glutSetCursor(int cursor) {
  63         int realcursor = cursor;
  64         if (cursor < 0 || cursor > GLUT_CURSOR_BOTTOM_LEFT_CORNER) {
  65                 switch(cursor) {
  66                 case GLUT_CURSOR_INHERIT:
  67                         return;         // don't change cursor
  68                 case GLUT_CURSOR_NONE:
  69                         // this hides the cursor until the user moves the mouse
  70                         // change it to HideCursor() AT YOUR OWN RISK!
  71                         be_app->ObscureCursor();
  72                         return;
  73                 case GLUT_CURSOR_FULL_CROSSHAIR:
  74                         realcursor = GLUT_CURSOR_CROSSHAIR;
  75                         break;
  76                 default:
  77                         __glutWarning("unknown cursor\n");
  78                         return;
  79                 }
  80         }
  81         be_app->SetCursor(cursorTable[realcursor]);
  82 }
  83
  84 /***********************************************************
  85  *      FUNCTION:       glutWarpPointer (x.xx)
  86  *
  87  *      DESCRIPTION:  move the mouse pointer to a new location
  88  *              (note:  can't do this in BeOS!)
  89  ***********************************************************/
  90 void glutWarpPointer(int x, int y) { }