added license GPL

[winnie] / src / sdl / mouse.cc

diff --git a/src/sdl/mouse.cc b/src/sdl/mouse.cc
index f31c900..db39d4a 100644 (file)
--- a/src/sdl/mouse.cc
+++ b/src/sdl/mouse.cc
@@ -1,22 +1,54 @@
+/*
+winnie - an experimental window system
+
+Copyright (C) 2013 Eleni Maria Stea
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Author: Eleni Maria Stea <elene.mst@gmail.com>
+*/
+
 #ifdef WINNIE_SDL
 #include <SDL/SDL.h>
 
 #include "mouse.h"
+#include "shalloc.h"
 #include "window.h"
 #include "wm.h"
 
 extern SDL_Event sdl_event;
 
-static int pointer_x, pointer_y;
-static int bnstate;
+struct Mouse {
+       int pointer_x;
+       int pointer_y;
+       int bnstate;
+};
+
+static Mouse *mouse;
 
 bool init_mouse()
 {
+       if(!(mouse = (Mouse*)sh_malloc(sizeof *mouse))) {
+               return false;
+       }
+       memset(mouse, 0, sizeof *mouse);
        return true;
 }
 
 void destroy_mouse()
 {
+       sh_free(mouse);
 }
 
 void set_mouse_bounds(const Rect &rect)
@@ -34,22 +66,24 @@ void process_mouse_event()
        MouseMotionFuncType motion_callback = 0;
        MouseButtonFuncType button_callback = 0;
 
-       Window *top = wm->get_window_at_pos(pointer_x, pointer_y);
-
-       if(top) {
-               wm->set_focused_window(top);
-       }
-       else {
-               wm->set_focused_window(0);
+       Window *win;
+       if(!(win = wm->get_grab_window())) {
+               win = wm->get_window_at_pos(mouse->pointer_x, mouse->pointer_y);
+               if(win) {
+                       wm->set_focused_window(win);
+               }
+               else {
+                       wm->set_focused_window(0);
+               }
        }
 
        switch(sdl_event.type) {
        case SDL_MOUSEMOTION:
-               pointer_x = sdl_event.motion.x;
-               pointer_y = sdl_event.motion.y;
-               if(top && (motion_callback = top->get_mouse_motion_callback())) {
-                       Rect rect = top->get_absolute_rect();
-                       motion_callback(top, pointer_x - rect.x, pointer_y - rect.y);
+               mouse->pointer_x = sdl_event.motion.x;
+               mouse->pointer_y = sdl_event.motion.y;
+               if(win && (motion_callback = win->get_mouse_motion_callback())) {
+                       Rect rect = win->get_absolute_rect();
+                       motion_callback(win, mouse->pointer_x - rect.x, mouse->pointer_y - rect.y);
                }
                break;
 
@@ -57,27 +91,27 @@ void process_mouse_event()
        case SDL_MOUSEBUTTONDOWN:
                bn = sdl_event.button.button - SDL_BUTTON_LEFT;
                if(sdl_event.button.state == SDL_PRESSED) {
-                       bnstate |= 1 << bn;
+                       mouse->bnstate |= 1 << bn;
                }
                else {
-                       bnstate &= ~(1 << bn);
+                       mouse->bnstate &= ~(1 << bn);
                }
-               if(top && (button_callback = top->get_mouse_button_callback())) {
-                       Rect rect = top->get_absolute_rect();
-                       button_callback(top, bn, sdl_event.button.state, pointer_x - rect.x, pointer_y - rect.y);
+               if(win && (button_callback = win->get_mouse_button_callback())) {
+                       Rect rect = win->get_absolute_rect();
+                       button_callback(win, bn, sdl_event.button.state, mouse->pointer_x - rect.x, mouse->pointer_y - rect.y);
                }
        }
 }
 
 void get_pointer_pos(int *x, int *y)
 {
-       *x = pointer_x;
-       *y = pointer_y;
+       *x = mouse->pointer_x;
+       *y = mouse->pointer_y;
 }
 
 int get_button_state()
 {
-       return bnstate;
+       return mouse->bnstate;
 }
 
 int get_button(int bn)
@@ -85,6 +119,6 @@ int get_button(int bn)
        if(bn < 0 || bn >= 3) {
                return 0;
        }
-       return (bnstate & (1 << bn)) != 0;
+       return (mouse->bnstate & (1 << bn)) != 0;
 }
 #endif // WINNIE_SDL