static int key_press_event(XKeyEvent *event)
{
if (event->keycode == mmkeys.raise_volume) {
mixer_set_volume_rel(config.scrollstep);
if (!osd_mapped())
map_osd();
if (osd_mapped())
update_osd(mixer_get_volume(), false);
ui_update();
return 1;
}
if (event->keycode == mmkeys.lower_volume) {
mixer_set_volume_rel(-config.scrollstep);
if (!osd_mapped())
map_osd();
if (osd_mapped())
update_osd(mixer_get_volume(), false);
ui_update();
return 1;
}
if (event->keycode == mmkeys.mute) {
mixer_toggle_mute();
ui_update();
return 1;
}
/* Ignore other keys */
return 0;
}
static void motion_event(XMotionEvent *event)
{
int x = event->x;
int y = event->y;
int region;
if ((x == mouse_drag_home_x) && (y == mouse_drag_home_y))
return;
region = check_region(x, y);
if (button_pressed) {
if (y != mouse_drag_home_y) {
float delta;
set_cursor(NULL_CURSOR);
delta = (float)(mouse_drag_home_y - y) / display_height;
knob_turn(delta);
if (!osd_mapped())
map_osd();
if (osd_mapped())
update_osd(mixer_get_volume(), false);
}
XWarpPointer(display, None, event->window, x, y, 0, 0,
mouse_drag_home_x, mouse_drag_home_y);
return;
}
if (slider_pressed) {
if (x != mouse_drag_home_x) {
float delta;
set_cursor(NULL_CURSOR);
delta = (float)(x - mouse_drag_home_x) / display_width;
slider_move(delta);
}
XWarpPointer(display, None, event->window, x, y, 0, 0,
mouse_drag_home_x, mouse_drag_home_y);
return;
}
if (region == 1)
set_cursor(HAND_CURSOR);
else if (region == 2)
set_cursor(BAR_CURSOR);
else
set_cursor(NORMAL_CURSOR);
}
static void signal_catch(int sig)
{
switch (sig) {
case SIGUSR1:
mixer_set_volume_rel(config.scrollstep);
if (!osd_mapped())
map_osd();
if (osd_mapped())
update_osd(mixer_get_volume(), false);
ui_update();
idle_loop = 0;
break;
case SIGUSR2:
mixer_set_volume_rel(-config.scrollstep);
if (!osd_mapped())
map_osd();
if (osd_mapped())
update_osd(mixer_get_volume(), false);
ui_update();
idle_loop = 0;
break;
}
}
int main(int argc, G_GNUC_UNUSED char **argv)
{
GError *error = NULL;
struct mixer *mixer;
bool success;
int volume;
if (argc != 2) {
g_printerr("Usage: read_mixer PLUGIN\n");
return 1;
}
g_thread_init(NULL);
mixer = mixer_new(&alsa_mixer_plugin, NULL, NULL, &error);
if (mixer == NULL) {
g_printerr("mixer_new() failed: %s\n", error->message);
g_error_free(error);
return 2;
}
success = mixer_open(mixer, &error);
if (!success) {
mixer_free(mixer);
g_printerr("failed to open the mixer: %s\n", error->message);
g_error_free(error);
return 2;
}
volume = mixer_get_volume(mixer, &error);
mixer_close(mixer);
mixer_free(mixer);
assert(volume >= -1 && volume <= 100);
if (volume < 0) {
if (error != NULL) {
g_printerr("failed to read volume: %s\n",
error->message);
g_error_free(error);
} else
g_printerr("failed to read volume\n");
return 2;
}
g_print("%d\n", volume);
return 0;
}
static void button_press_event(XButtonEvent *event)
{
double button_press_time = get_current_time();
int x = event->x;
int y = event->y;
bool double_click = false;
/* handle wheel scrolling to adjust volume */
if (config.mousewheel) {
if (event->button == config.wheel_button_up) {
mixer_set_volume_rel(config.scrollstep);
if (!osd_mapped())
map_osd();
if (osd_mapped())
update_osd(mixer_get_volume(), false);
ui_update();
return;
}
if (event->button == config.wheel_button_down) {
mixer_set_volume_rel(-config.scrollstep);
if (!osd_mapped())
map_osd();
if (osd_mapped())
update_osd(mixer_get_volume(), false);
ui_update();
return;
}
}
if ((button_press_time - prev_button_press_time) <= 0.5) {
double_click = true;
prev_button_press_time = 0.0;
} else
prev_button_press_time = button_press_time;
switch (check_region(x, y)) {
case 1: /* on knob */
button_pressed = true;
slider_pressed = false;
mouse_drag_home_x = x;
mouse_drag_home_y = y;
if (double_click) {
mixer_toggle_mute();
ui_update();
}
break;
case 2: /* on slider */
button_pressed = false;
slider_pressed = true;
mouse_drag_home_x = x;
mouse_drag_home_y = y;
if (double_click) {
mixer_set_balance(0.0);
ui_update();
}
break;
case 3: /* previous channel */
mixer_set_channel_rel(-1);
blit_string(config.scrolltext ? mixer_get_channel_name() : mixer_get_short_name());
scroll_text(3, 4, 57, true);
unmap_osd();
map_osd();
ui_update();
break;
case 4: /* next channel */
mixer_set_channel_rel(1);
blit_string(config.scrolltext ? mixer_get_channel_name() : mixer_get_short_name());
scroll_text(3, 4, 57, true);
unmap_osd();
map_osd();
ui_update();
break;
case 5: /* toggle mute */
mixer_toggle_mute();
ui_update();
break;
case 6: /* toggle rec */
mixer_toggle_rec();
ui_update();
break;
case 10:
scroll_text(3, 4, 57, true);
break;
default:
printf("unknown region pressed\n");
break;
}
}
