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sdl2: Support mouse wheel

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In SDL2, wheel movement is its own event, not a button event. Wire
it up similar to gtk.c

Signed-off-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Cole Robinson 2014-04-21 18:58:50 -04:00 committed by Gerd Hoffmann
parent 8b15d9f1d2
commit 3f2fde2a00
1 changed files with 26 additions and 18 deletions
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42
ui/sdl2.c
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@ -359,16 +359,12 @@ static void sdl_mouse_mode_change(Notifier *notify, void *data)
}
static void sdl_send_mouse_event(struct sdl2_state *scon, int dx, int dy,
int dz, int x, int y, int state)
int x, int y, int state)
{
static uint32_t bmap[INPUT_BUTTON_MAX] = {
[INPUT_BUTTON_LEFT] = SDL_BUTTON(SDL_BUTTON_LEFT),
[INPUT_BUTTON_MIDDLE] = SDL_BUTTON(SDL_BUTTON_MIDDLE),
[INPUT_BUTTON_RIGHT] = SDL_BUTTON(SDL_BUTTON_RIGHT),
#if 0
[INPUT_BUTTON_WHEEL_UP] = SDL_BUTTON(SDL_BUTTON_WHEELUP),
[INPUT_BUTTON_WHEEL_DOWN] = SDL_BUTTON(SDL_BUTTON_WHEELDOWN),
#endif
};
static uint32_t prev_state;
@ -566,7 +562,7 @@ static void handle_mousemotion(SDL_Event *ev)
}
}
if (gui_grab || qemu_input_is_absolute() || absolute_enabled) {
sdl_send_mouse_event(scon, ev->motion.xrel, ev->motion.yrel, 0,
sdl_send_mouse_event(scon, ev->motion.xrel, ev->motion.yrel,
ev->motion.x, ev->motion.y, ev->motion.state);
}
}
@ -576,7 +572,6 @@ static void handle_mousebutton(SDL_Event *ev)
int buttonstate = SDL_GetMouseState(NULL, NULL);
SDL_MouseButtonEvent *bev;
struct sdl2_state *scon = get_scon_from_window(ev->key.windowID);
int dz;
bev = &ev->button;
if (!gui_grab && !qemu_input_is_absolute()) {
@ -585,23 +580,33 @@ static void handle_mousebutton(SDL_Event *ev)
sdl_grab_start(scon);
}
} else {
dz = 0;
if (ev->type == SDL_MOUSEBUTTONDOWN) {
buttonstate |= SDL_BUTTON(bev->button);
} else {
buttonstate &= ~SDL_BUTTON(bev->button);
}
#ifdef SDL_BUTTON_WHEELUP
if (bev->button == SDL_BUTTON_WHEELUP &&
ev->type == SDL_MOUSEBUTTONDOWN) {
dz = -1;
} else if (bev->button == SDL_BUTTON_WHEELDOWN &&
ev->type == SDL_MOUSEBUTTONDOWN) {
dz = 1;
sdl_send_mouse_event(scon, 0, 0, bev->x, bev->y, buttonstate);
}
#endif
sdl_send_mouse_event(scon, 0, 0, dz, bev->x, bev->y, buttonstate);
}
static void handle_mousewheel(SDL_Event *ev)
{
struct sdl2_state *scon = get_scon_from_window(ev->key.windowID);
SDL_MouseWheelEvent *wev = &ev->wheel;
InputButton btn;
if (wev->y > 0) {
btn = INPUT_BUTTON_WHEEL_UP;
} else if (wev->y < 0) {
btn = INPUT_BUTTON_WHEEL_DOWN;
} else {
return;
}
qemu_input_queue_btn(scon->dcl.con, btn, true);
qemu_input_event_sync();
qemu_input_queue_btn(scon->dcl.con, btn, false);
qemu_input_event_sync();
}
static void handle_windowevent(DisplayChangeListener *dcl, SDL_Event *ev)
@ -685,6 +690,9 @@ static void sdl_refresh(DisplayChangeListener *dcl)
case SDL_MOUSEBUTTONUP:
handle_mousebutton(ev);
break;
case SDL_MOUSEWHEEL:
handle_mousewheel(ev);
break;
case SDL_WINDOWEVENT:
handle_windowevent(dcl, ev);
break;