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