eleni.mutantstargoat.com Git - winnie/blob - src/sdl/mouse.cc

   1 #ifdef WINNIE_SDL
   2 #include <SDL/SDL.h>
   3
   4 #include "mouse.h"
   5 #include "shalloc.h"
   6 #include "window.h"
   7 #include "wm.h"
   8
   9 extern SDL_Event sdl_event;
  10
  11 struct Mouse {
  12         int pointer_x;
  13         int pointer_y;
  14         int bnstate;
  15 };
  16
  17 static Mouse *mouse;
  18
  19 bool init_mouse()
  20 {
  21         if(!(mouse = (Mouse*)sh_malloc(sizeof *mouse))) {
  22                 return false;
  23         }
  24         return true;
  25 }
  26
  27 void destroy_mouse()
  28 {
  29         sh_free(mouse);
  30 }
  31
  32 void set_mouse_bounds(const Rect &rect)
  33 {
  34 }
  35
  36 int get_mouse_fd()
  37 {
  38         return -1;
  39 }
  40
  41 void process_mouse_event()
  42 {
  43         int bn;
  44         MouseMotionFuncType motion_callback = 0;
  45         MouseButtonFuncType button_callback = 0;
  46
  47         Window *win;
  48         if(!(win = wm->get_grab_window())) {
  49                 win = wm->get_window_at_pos(mouse->pointer_x, mouse->pointer_y);
  50                 if(win) {
  51                         wm->set_focused_window(win);
  52                 }
  53                 else {
  54                         wm->set_focused_window(0);
  55                 }
  56         }
  57
  58         switch(sdl_event.type) {
  59         case SDL_MOUSEMOTION:
  60                 mouse->pointer_x = sdl_event.motion.x;
  61                 mouse->pointer_y = sdl_event.motion.y;
  62                 if(win && (motion_callback = win->get_mouse_motion_callback())) {
  63                         Rect rect = win->get_absolute_rect();
  64                         motion_callback(win, mouse->pointer_x - rect.x, mouse->pointer_y - rect.y);
  65                 }
  66                 break;
  67
  68         case SDL_MOUSEBUTTONUP:
  69         case SDL_MOUSEBUTTONDOWN:
  70                 bn = sdl_event.button.button - SDL_BUTTON_LEFT;
  71                 if(sdl_event.button.state == SDL_PRESSED) {
  72                         mouse->bnstate |= 1 << bn;
  73                 }
  74                 else {
  75                         mouse->bnstate &= ~(1 << bn);
  76                 }
  77                 if(win && (button_callback = win->get_mouse_button_callback())) {
  78                         Rect rect = win->get_absolute_rect();
  79                         button_callback(win, bn, sdl_event.button.state, mouse->pointer_x - rect.x, mouse->pointer_y - rect.y);
  80                 }
  81         }
  82 }
  83
  84 void get_pointer_pos(int *x, int *y)
  85 {
  86         *x = mouse->pointer_x;
  87         *y = mouse->pointer_y;
  88 }
  89
  90 int get_button_state()
  91 {
  92         return mouse->bnstate;
  93 }
  94
  95 int get_button(int bn)
  96 {
  97         if(bn < 0 || bn >= 3) {
  98                 return 0;
  99         }
 100         return (mouse->bnstate & (1 << bn)) != 0;
 101 }
 102 #endif // WINNIE_SDL