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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 "sdl/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);
}
bool client_open_mouse(void *smem_start, int offset)
{
mouse = (Mouse*)((unsigned char*)smem_start + offset);
return true;
}
void client_close_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
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