int
SDL_SendMouseButton(SDL_Window * window, SDL_MouseID mouseID, Uint8 state, Uint8 button)
{
SDL_Mouse *mouse = SDL_GetMouse();
int posted;
Uint32 type;
Uint32 buttonstate = mouse->buttonstate;
SDL_MouseClickState *clickstate = GetMouseClickState(mouse, button);
Uint8 click_count;
/* Figure out which event to perform */
switch (state) {
case SDL_PRESSED:
type = SDL_MOUSEBUTTONDOWN;
buttonstate |= SDL_BUTTON(button);
break;
case SDL_RELEASED:
type = SDL_MOUSEBUTTONUP;
buttonstate &= ~SDL_BUTTON(button);
break;
default:
/* Invalid state -- bail */
return 0;
}
/* We do this after calculating buttonstate so button presses gain focus */
if (window && state == SDL_PRESSED) {
SDL_UpdateMouseFocus(window, mouse->x, mouse->y, buttonstate);
}
if (buttonstate == mouse->buttonstate) {
/* Ignore this event, no state change */
return 0;
}
mouse->buttonstate = buttonstate;
if (clickstate) {
if (state == SDL_PRESSED) {
Uint32 now = SDL_GetTicks();
if (SDL_TICKS_PASSED(now, clickstate->last_timestamp + SDL_double_click_time) ||
SDL_abs(mouse->x - clickstate->last_x) > SDL_double_click_radius ||
SDL_abs(mouse->y - clickstate->last_y) > SDL_double_click_radius) {
clickstate->click_count = 0;
}
clickstate->last_timestamp = now;
clickstate->last_x = mouse->x;
clickstate->last_y = mouse->y;
if (clickstate->click_count < 255) {
++clickstate->click_count;
}
}
click_count = clickstate->click_count;
} else {
click_count = 1;
}
/* Post the event, if desired */
posted = 0;
if (SDL_GetEventState(type) == SDL_ENABLE) {
SDL_Event event;
event.type = type;
event.button.windowID = mouse->focus ? mouse->focus->id : 0;
event.button.which = mouseID;
event.button.state = state;
event.button.button = button;
event.button.clicks = click_count;
event.button.x = mouse->x;
event.button.y = mouse->y;
posted = (SDL_PushEvent(&event) > 0);
}
/* We do this after dispatching event so button releases can lose focus */
if (window && state == SDL_RELEASED) {
SDL_UpdateMouseFocus(window, mouse->x, mouse->y, buttonstate);
}
return posted;
}
static int
SDL_PrivateSendMouseButton(SDL_Window * window, SDL_MouseID mouseID, Uint8 state, Uint8 button, int clicks)
{
SDL_Mouse *mouse = SDL_GetMouse();
int posted;
Uint32 type;
Uint32 buttonstate = mouse->buttonstate;
/* SDL_HINT_MOUSE_TOUCH_EVENTS: controlling whether mouse events should generate synthetic touch events */
if (mouse->mouse_touch_events) {
if (mouseID != SDL_TOUCH_MOUSEID && button == SDL_BUTTON_LEFT) {
if (state == SDL_PRESSED) {
track_mouse_down = SDL_TRUE;
} else {
track_mouse_down = SDL_FALSE;
}
if (window) {
float fx = (float)mouse->x / (float)window->w;
float fy = (float)mouse->y / (float)window->h;
SDL_SendTouch(SDL_MOUSE_TOUCHID, 0, track_mouse_down, fx, fy, 1.0f);
}
}
}
/* Figure out which event to perform */
switch (state) {
case SDL_PRESSED:
type = SDL_MOUSEBUTTONDOWN;
buttonstate |= SDL_BUTTON(button);
break;
case SDL_RELEASED:
type = SDL_MOUSEBUTTONUP;
buttonstate &= ~SDL_BUTTON(button);
break;
default:
/* Invalid state -- bail */
return 0;
}
/* We do this after calculating buttonstate so button presses gain focus */
if (window && state == SDL_PRESSED) {
SDL_UpdateMouseFocus(window, mouse->x, mouse->y, buttonstate);
}
if (buttonstate == mouse->buttonstate) {
/* Ignore this event, no state change */
return 0;
}
mouse->buttonstate = buttonstate;
if (clicks < 0) {
SDL_MouseClickState *clickstate = GetMouseClickState(mouse, button);
if (clickstate) {
if (state == SDL_PRESSED) {
Uint32 now = SDL_GetTicks();
if (SDL_TICKS_PASSED(now, clickstate->last_timestamp + mouse->double_click_time) ||
SDL_abs(mouse->x - clickstate->last_x) > mouse->double_click_radius ||
SDL_abs(mouse->y - clickstate->last_y) > mouse->double_click_radius) {
clickstate->click_count = 0;
}
clickstate->last_timestamp = now;
clickstate->last_x = mouse->x;
clickstate->last_y = mouse->y;
if (clickstate->click_count < 255) {
++clickstate->click_count;
}
}
clicks = clickstate->click_count;
} else {
clicks = 1;
}
}
/* Post the event, if desired */
posted = 0;
if (SDL_GetEventState(type) == SDL_ENABLE) {
SDL_Event event;
event.type = type;
event.button.windowID = mouse->focus ? mouse->focus->id : 0;
event.button.which = mouseID;
event.button.state = state;
event.button.button = button;
event.button.clicks = (Uint8) SDL_min(clicks, 255);
event.button.x = mouse->x;
event.button.y = mouse->y;
posted = (SDL_PushEvent(&event) > 0);
}
/* We do this after dispatching event so button releases can lose focus */
if (window && state == SDL_RELEASED) {
SDL_UpdateMouseFocus(window, mouse->x, mouse->y, buttonstate);
}
return posted;
}