int
SDL_SendProximity(int id, int x, int y, int type)
{
int index = SDL_GetMouseIndexId(id);
SDL_Mouse *mouse = SDL_GetMouse(index);
int posted = 0;
if (!mouse) {
return 0;
}
mouse->last_x = x;
mouse->last_y = y;
if (SDL_GetEventState(type) == SDL_ENABLE) {
SDL_Event event;
event.proximity.which = (Uint8) index;
event.proximity.x = x;
event.proximity.y = y;
event.proximity.cursor = mouse->current_end;
event.proximity.type = type;
/* FIXME: is this right? */
event.proximity.windowID = mouse->focus ? mouse->focus->id : 0;
posted = (SDL_PushEvent(&event) > 0);
if (type == SDL_PROXIMITYIN) {
mouse->proximity = SDL_TRUE;
} else {
mouse->proximity = SDL_FALSE;
}
}
return posted;
}
int
SDL_SendProximity(int id, int x, int y, int type)
{
int index = SDL_GetMouseIndexId(id);
SDL_Mouse *mouse = SDL_GetMouse(index);
int posted = 0;
if (!mouse) {
return 0;
}
mouse->last_x = x;
mouse->last_y = y;
if (SDL_ProcessEvents[type] == SDL_ENABLE) {
SDL_Event event;
event.proximity.which = (Uint8) index;
event.proximity.x = x;
event.proximity.y = y;
event.proximity.cursor = mouse->current_end;
event.proximity.type = type;
posted = (SDL_PushEvent(&event) > 0);
if (type == SDL_PROXIMITYIN) {
mouse->proximity = SDL_TRUE;
} else {
mouse->proximity = SDL_FALSE;
}
}
return posted;
}
int
SDL_AddMouse(const SDL_Mouse * mouse, char *name, int pressure_max,
int pressure_min, int ends)
{
SDL_Mouse **mice;
int selected_mouse;
int index;
size_t length;
if (SDL_GetMouseIndexId(mouse->id) != -1) {
SDL_SetError("Mouse ID already in use");
}
/* Add the mouse to the list of mice */
mice = (SDL_Mouse **) SDL_realloc(SDL_mice,
(SDL_num_mice + 1) * sizeof(*mice));
if (!mice) {
SDL_OutOfMemory();
return -1;
}
SDL_mice = mice;
index = SDL_num_mice++;
SDL_mice[index] = (SDL_Mouse *) SDL_malloc(sizeof(*SDL_mice[index]));
if (!SDL_mice[index]) {
SDL_OutOfMemory();
return -1;
}
*SDL_mice[index] = *mouse;
/* we're setting the mouse properties */
length = 0;
length = SDL_strlen(name);
SDL_mice[index]->focus = 0;
SDL_mice[index]->name = SDL_malloc((length + 2) * sizeof(char));
SDL_strlcpy(SDL_mice[index]->name, name, length + 1);
SDL_mice[index]->pressure_max = pressure_max;
SDL_mice[index]->pressure_min = pressure_min;
SDL_mice[index]->cursor_shown = SDL_TRUE;
selected_mouse = SDL_SelectMouse(index);
SDL_mice[index]->cur_cursor = NULL;
SDL_mice[index]->def_cursor =
SDL_CreateCursor(default_cdata, default_cmask, DEFAULT_CWIDTH,
DEFAULT_CHEIGHT, DEFAULT_CHOTX, DEFAULT_CHOTY);
SDL_SetCursor(SDL_mice[index]->def_cursor);
/* we're assuming that all mice are in the computer sensing zone */
SDL_mice[index]->proximity = SDL_TRUE;
/* we're assuming that all mice are working in the absolute position mode
thanx to that, the users that don't want to use many mice don't have to
worry about anything */
SDL_mice[index]->relative_mode = SDL_FALSE;
SDL_mice[index]->current_end = 0;
SDL_mice[index]->total_ends = ends;
SDL_SelectMouse(selected_mouse);
return index;
}
void
SDL_ChangeEnd(int id, int end)
{
int index = SDL_GetMouseIndexId(id);
SDL_Mouse *mouse = SDL_GetMouse(index);
if (mouse) {
mouse->current_end = end;
}
}
int
SDL_SendMouseButton(int id, Uint8 state, Uint8 button)
{
int index = SDL_GetMouseIndexId(id);
SDL_Mouse *mouse = SDL_GetMouse(index);
int posted;
Uint32 type;
if (!mouse) {
return 0;
}
/* Figure out which event to perform */
switch (state) {
case SDL_PRESSED:
if (mouse->buttonstate & SDL_BUTTON(button)) {
/* Ignore this event, no state change */
return 0;
}
type = SDL_MOUSEBUTTONDOWN;
mouse->buttonstate |= SDL_BUTTON(button);
break;
case SDL_RELEASED:
if (!(mouse->buttonstate & SDL_BUTTON(button))) {
/* Ignore this event, no state change */
return 0;
}
type = SDL_MOUSEBUTTONUP;
mouse->buttonstate &= ~SDL_BUTTON(button);
break;
default:
/* Invalid state -- bail */
return 0;
}
/* Post the event, if desired */
posted = 0;
if (SDL_GetEventState(type) == SDL_ENABLE) {
SDL_Event event;
event.type = type;
event.button.which = (Uint8) index;
event.button.state = state;
event.button.button = button;
event.button.x = mouse->x;
event.button.y = mouse->y;
event.button.windowID = mouse->focus ? mouse->focus->id : 0;
posted = (SDL_PushEvent(&event) > 0);
}
return posted;
}
void
SDL_SetMouseFocus(int id, SDL_Window * window)
{
int index = SDL_GetMouseIndexId(id);
SDL_Mouse *mouse = SDL_GetMouse(index);
int i;
SDL_bool focus;
if (!mouse || (mouse->focus == window)) {
return;
}
/* See if the current window has lost focus */
if (mouse->focus) {
focus = SDL_FALSE;
for (i = 0; i < SDL_num_mice; ++i) {
SDL_Mouse *check;
if (i != index) {
check = SDL_GetMouse(i);
if (check && check->focus == mouse->focus) {
focus = SDL_TRUE;
break;
}
}
}
if (!focus) {
SDL_SendWindowEvent(mouse->focus, SDL_WINDOWEVENT_LEAVE, 0, 0);
}
}
mouse->focus = window;
if (mouse->focus) {
focus = SDL_FALSE;
for (i = 0; i < SDL_num_mice; ++i) {
SDL_Mouse *check;
if (i != index) {
check = SDL_GetMouse(i);
if (check && check->focus == mouse->focus) {
focus = SDL_TRUE;
break;
}
}
}
if (!focus) {
SDL_SendWindowEvent(mouse->focus, SDL_WINDOWEVENT_ENTER, 0, 0);
}
}
}
int
SDL_SendMouseMotion(int id, int relative, int x, int y, int pressure)
{
int index = SDL_GetMouseIndexId(id);
SDL_Mouse *mouse = SDL_GetMouse(index);
int posted;
int xrel;
int yrel;
int x_max = 0, y_max = 0;
if (!mouse || mouse->flush_motion) {
return 0;
}
/* if the mouse is out of proximity we don't to want to have any motion from it */
if (mouse->proximity == SDL_FALSE) {
mouse->last_x = x;
mouse->last_y = y;
return 0;
}
/* the relative motion is calculated regarding the system cursor last position */
if (relative) {
xrel = x;
yrel = y;
x = (mouse->last_x + x);
y = (mouse->last_y + y);
} else {
xrel = x - mouse->last_x;
yrel = y - mouse->last_y;
}
/* Drop events that don't change state */
if (!xrel && !yrel) {
#if 0
printf("Mouse event didn't change state - dropped!\n");
#endif
return 0;
}
/* Update internal mouse coordinates */
if (mouse->relative_mode == SDL_FALSE) {
mouse->x = x;
mouse->y = y;
} else {
mouse->x += xrel;
mouse->y += yrel;
}
SDL_GetWindowSize(mouse->focus, &x_max, &y_max);
/* make sure that the pointers find themselves inside the windows */
/* only check if mouse->xmax is set ! */
if (x_max && mouse->x > x_max) {
mouse->x = x_max;
} else if (mouse->x < 0) {
mouse->x = 0;
}
if (y_max && mouse->y > y_max) {
mouse->y = y_max;
} else if (mouse->y < 0) {
mouse->y = 0;
}
mouse->xdelta += xrel;
mouse->ydelta += yrel;
mouse->pressure = pressure;
/* Move the mouse cursor, if needed */
if (mouse->cursor_shown && !mouse->relative_mode &&
mouse->MoveCursor && mouse->cur_cursor) {
mouse->MoveCursor(mouse->cur_cursor);
}
/* Post the event, if desired */
posted = 0;
if (SDL_GetEventState(SDL_MOUSEMOTION) == SDL_ENABLE &&
mouse->proximity == SDL_TRUE) {
SDL_Event event;
event.motion.type = SDL_MOUSEMOTION;
event.motion.which = (Uint8) index;
event.motion.state = mouse->buttonstate;
event.motion.x = mouse->x;
event.motion.y = mouse->y;
event.motion.z = mouse->z;
event.motion.pressure = mouse->pressure;
event.motion.pressure_max = mouse->pressure_max;
event.motion.pressure_min = mouse->pressure_min;
event.motion.rotation = 0;
event.motion.tilt_x = 0;
event.motion.tilt_y = 0;
event.motion.cursor = mouse->current_end;
event.motion.xrel = xrel;
event.motion.yrel = yrel;
event.motion.windowID = mouse->focus ? mouse->focus->id : 0;
posted = (SDL_PushEvent(&event) > 0);
}
mouse->last_x = mouse->x;
mouse->last_y = mouse->y;
return posted;
}
