/**
* @brief Map custom widget mouse handling.
*
* @param wid Window sending events.
* @param event Event window is sending.
* @param mx Mouse X position.
* @param my Mouse Y position.
* @param w Width of the widget.
* @param h Height of the widget.
*/
static void map_mouse( unsigned int wid, SDL_Event* event, double mx, double my,
double w, double h )
{
(void) wid;
int i;
double x,y, t;
StarSystem *sys;
t = 15.*15.; /* threshold */
mx -= w/2 - map_xpos;
my -= h/2 - map_ypos;
switch (event->type) {
case SDL_MOUSEBUTTONDOWN:
/* zooming */
if (event->button.button == SDL_BUTTON_WHEELUP)
map_buttonZoom( 0, "btnZoomIn" );
else if (event->button.button == SDL_BUTTON_WHEELDOWN)
map_buttonZoom( 0, "btnZoomOut" );
/* selecting star system */
else {
for (i=0; i<systems_nstack; i++) {
sys = system_getIndex( i );
/* must be reachable */
if (!space_sysReachable(sys))
continue;
/* get position */
x = sys->pos.x * map_zoom;
y = sys->pos.y * map_zoom;
if ((pow2(mx-x)+pow2(my-y)) < t) {
map_select( sys );
break;
}
}
map_drag = 1;
}
break;
case SDL_MOUSEBUTTONUP:
if (map_drag) map_drag = 0;
break;
case SDL_MOUSEMOTION:
if (map_drag) {
/* axis is inverted */
map_xpos -= event->motion.xrel;
map_ypos += event->motion.yrel;
}
break;
}
}
/**
* @brief Map custom widget mouse handling.
*
* @param wid Window sending events.
* @param event Event window is sending.
* @param mx Mouse X position.
* @param my Mouse Y position.
* @param w Width of the widget.
* @param h Height of the widget.
*/
static void map_mouse( unsigned int wid, SDL_Event* event, double mx, double my,
double w, double h, void *data )
{
(void) wid;
(void) data;
int i;
double x,y, t;
StarSystem *sys;
t = 15.*15.; /* threshold */
switch (event->type) {
case SDL_MOUSEBUTTONDOWN:
/* Must be in bounds. */
if ((mx < 0.) || (mx > w) || (my < 0.) || (my > h))
return;
/* Zooming */
if (event->button.button == SDL_BUTTON_WHEELUP)
map_buttonZoom( 0, "btnZoomIn" );
else if (event->button.button == SDL_BUTTON_WHEELDOWN)
map_buttonZoom( 0, "btnZoomOut" );
/* selecting star system */
else {
mx -= w/2 - map_xpos;
my -= h/2 - map_ypos;
for (i=0; i<systems_nstack; i++) {
sys = system_getIndex( i );
/* must be reachable */
if (!sys_isFlag(sys, SYSTEM_MARKED | SYSTEM_CMARKED)
&& !space_sysReachable(sys))
continue;
/* get position */
x = sys->pos.x * map_zoom;
y = sys->pos.y * map_zoom;
if ((pow2(mx-x)+pow2(my-y)) < t) {
map_select( sys, (SDL_GetModState() & KMOD_SHIFT) );
break;
}
}
map_drag = 1;
}
break;
case SDL_MOUSEBUTTONUP:
if (map_drag)
map_drag = 0;
break;
case SDL_MOUSEMOTION:
if (map_drag) {
/* axis is inverted */
map_xpos -= event->motion.xrel;
map_ypos += event->motion.yrel;
}
break;
}
}
