git.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         memset(mouse, 0, sizeof *mouse);
  25         return true;
  26 }
  27
  28 void destroy_mouse()
  29 {
  30         sh_free(mouse);
  31 }
  32
  33 void set_mouse_bounds(const Rect &rect)
  34 {
  35 }
  36
  37 int get_mouse_fd()
  38 {
  39         return -1;
  40 }
  41
  42 void process_mouse_event()
  43 {
  44         int bn;
  45         MouseMotionFuncType motion_callback = 0;
  46         MouseButtonFuncType button_callback = 0;
  47
  48         Window *win;
  49         if(!(win = wm->get_grab_window())) {
  50                 win = wm->get_window_at_pos(mouse->pointer_x, mouse->pointer_y);
  51                 if(win) {
  52                         wm->set_focused_window(win);
  53                 }
  54                 else {
  55                         wm->set_focused_window(0);
  56                 }
  57         }
  58
  59         switch(sdl_event.type) {
  60         case SDL_MOUSEMOTION:
  61                 mouse->pointer_x = sdl_event.motion.x;
  62                 mouse->pointer_y = sdl_event.motion.y;
  63                 if(win && (motion_callback = win->get_mouse_motion_callback())) {
  64                         Rect rect = win->get_absolute_rect();
  65                         motion_callback(win, mouse->pointer_x - rect.x, mouse->pointer_y - rect.y);
  66                 }
  67                 break;
  68
  69         case SDL_MOUSEBUTTONUP:
  70         case SDL_MOUSEBUTTONDOWN:
  71                 bn = sdl_event.button.button - SDL_BUTTON_LEFT;
  72                 if(sdl_event.button.state == SDL_PRESSED) {
  73                         mouse->bnstate |= 1 << bn;
  74                 }
  75                 else {
  76                         mouse->bnstate &= ~(1 << bn);
  77                 }
  78                 if(win && (button_callback = win->get_mouse_button_callback())) {
  79                         Rect rect = win->get_absolute_rect();
  80                         button_callback(win, bn, sdl_event.button.state, mouse->pointer_x - rect.x, mouse->pointer_y - rect.y);
  81                 }
  82         }
  83 }
  84
  85 void get_pointer_pos(int *x, int *y)
  86 {
  87         *x = mouse->pointer_x;
  88         *y = mouse->pointer_y;
  89 }
  90
  91 int get_button_state()
  92 {
  93         return mouse->bnstate;
  94 }
  95
  96 int get_button(int bn)
  97 {
  98         if(bn < 0 || bn >= 3) {
  99                 return 0;
 100         }
 101         return (mouse->bnstate & (1 << bn)) != 0;
 102 }
 103 #endif // WINNIE_SDL