created libwinnie (library), winnie (the server application) and clients

[winnie] / libwinnie / src / sdl / mouse.cc

diff --git a/libwinnie/src/sdl/mouse.cc b/libwinnie/src/sdl/mouse.cc
new file mode 100644 (file)
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+++ b/libwinnie/src/sdl/mouse.cc
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+/*
+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 "wm.h"
+#include "window.h"
+#include "winnie.h"
+
+extern SDL_Event sdl_event;
+
+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;
+       }
+       get_subsys()->mouse_offset = (int)((char*)mouse - (char*)get_pool());
+
+       memset(mouse, 0, sizeof *mouse);
+       return true;
+}
+
+void destroy_mouse()
+{
+       sh_free(mouse);
+}
+
+void set_mouse_bounds(const Rect &rect)
+{
+}
+
+int get_mouse_fd()
+{
+       return -1;
+}
+
+void process_mouse_event()
+{
+       int bn;
+       MouseMotionFuncType motion_callback = 0;
+       MouseButtonFuncType button_callback = 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:
+               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;
+
+       case SDL_MOUSEBUTTONUP:
+       case SDL_MOUSEBUTTONDOWN:
+               bn = sdl_event.button.button - SDL_BUTTON_LEFT;
+               if(sdl_event.button.state == SDL_PRESSED) {
+                       mouse->bnstate |= 1 << bn;
+               }
+               else {
+                       mouse->bnstate &= ~(1 << bn);
+               }
+               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 = mouse->pointer_x;
+       *y = mouse->pointer_y;
+}
+
+int get_button_state()
+{
+       return mouse->bnstate;
+}
+
+int get_button(int bn)
+{
+       if(bn < 0 || bn >= 3) {
+               return 0;
+       }
+       return (mouse->bnstate & (1 << bn)) != 0;
+}
+#endif // WINNIE_SDL