Multitouch.h

   1 #include <SDL/SDL.h>
   2
   3 #define MT_MAX_CURSORS 10
   4
   5 /* we don't want to break any unrelated code */
   6 #define m_createStroke m_createStrokes[0]
   7 #define m_moveStroke   m_moveStrokes[0]
   8
   9 struct t_draw_event {
  10     int cursor_id;
  11     int x;
  12     int y;
  13 };
  14
  15 typedef struct t_draw_event DrawEvent;
  16
  17
  18 struct t_drag_event {
  19     int cursor_id;
  20     int x;
  21     int y;
  22     int xdiff;
  23     int ydiff;
  24 };
  25
  26 typedef struct t_drag_event DragEvent;
  27
  28
  29 struct t_pan_event {
  30     int xdiff;
  31     int ydiff;
  32 };
  33
  34 typedef struct t_pan_event PanEvent;
  35
  36
  37 struct t_zoom_event {
  38     int x;
  39     int y;
  40     float zoomfactor;
  41 };
  42
  43 typedef struct t_zoom_event ZoomEvent;
  44
  45
  46 struct t_delete_event {
  47     int x;
  48     int y;
  49 };
  50
  51 typedef struct t_delete_event DeleteEvent;
  52
  53
  54 enum
  55 {
  56     /* SDL_Events with one of the following have a DrawEvent as data1 */
  57     SDL_NP_START_STROKE = SDL_USEREVENT+1,
  58     SDL_NP_APPEND_STROKE,
  59     SDL_NP_FINISH_STROKE,
  60
  61     SDL_NP_START_ROPE,
  62     SDL_NP_APPEND_ROPE,
  63     SDL_NP_FINISH_ROPE,
  64
  65
  66     /* SDL_Events with one of the following types have a DragEvent as data1 */
  67     SDL_NP_START_DRAG,
  68     SDL_NP_DRAG,
  69     SDL_NP_END_DRAG,
  70
  71     /* SDL_Events with one of the following types have a PanEvent as data1 */
  72     SDL_NP_PAN,
  73
  74     /* SDL_Events with one of the following types have a ZoomEvent as data1 */
  75     SDL_NP_ZOOM,
  76
  77     /* SDL_Events with one of the following types have a DeletEvent as data1 */
  78     SDL_NP_DELETE
  79
  80 };
  81
  82 void queueStartStrokeEvent(int cursor_id, int x, int y);
  83 void queueAppendStrokeEvent(int cursor_id, int x, int y);
  84 void queueFinishStrokeEvent(int cursor_id, int x, int y);
  85 void queueStartRopeEvent(int cursor_id, int x, int y);
  86 void queueAppendRopeEvent(int cursor_id, int x, int y);
  87 void queueFinishRopeEvent(int cursor_id, int x, int y);
  88 void queueStartDragEvent(int cursor_id, int x, int y, int xdiff, int ydiff);
  89 void queueDragEvent(int cursor_id, int x, int y, int xdiff, int ydiff);
  90 void queueEndDragEvent(int cursor_id, int x, int y, int xdiff, int ydiff);
  91 void queuePanEvent(int xdiff, int ydiff);
  92 void queueZoomEvent(int x, int y, float zoomfactor);
  93 void queueDeleteEvent(int x, int y);
  94 void queueUserEvent(int type, void *data1, void *data2);