static gboolean
gstyle_eyedropper_pointer_released_cb (GstyleEyedropper *self,
GdkEventButton *event,
GtkWindow *window)
{
GdkRGBA rgba;
g_assert (GSTYLE_IS_EYEDROPPER (self));
g_assert (event != NULL);
g_assert (GTK_IS_WINDOW (window));
g_assert (self->screen == gdk_event_get_screen ((GdkEvent *) event));
get_rgba_at_cursor (self,
self->screen,
gdk_event_get_device ((GdkEvent *) event),
event->x_root, event->y_root, &rgba);
gstyle_color_set_rgba (self->color, &rgba);
g_signal_emit (self, signals [COLOR_PICKED], 0, &rgba);
release_grab (self);
self->button_pressed = FALSE;
return GDK_EVENT_STOP;
}
static void
gstyle_eyedropper_finalize (GObject *object)
{
GstyleEyedropper *self = GSTYLE_EYEDROPPER (object);
release_grab (self);
g_clear_object (&self->color);
G_OBJECT_CLASS (gstyle_eyedropper_parent_class)->finalize (object);
}
static gboolean
gstyle_eyedropper_grab_broken_cb (GstyleEyedropper *self,
GdkEventKey *event,
GtkWidget *window)
{
g_assert (GSTYLE_IS_EYEDROPPER (self));
g_assert (event != NULL);
g_assert (GTK_IS_WINDOW (window));
release_grab (self);
return GDK_EVENT_STOP;
}
void toggle_grab (GromitData *data,
GdkDevice* dev)
{
if(dev == NULL) /* toggle all */
{
if (data->all_grabbed)
release_grab (data, NULL);
else
acquire_grab (data, NULL);
return;
}
GromitDeviceData *devdata =
g_hash_table_lookup(data->devdatatable, dev);
if(devdata)
{
if(devdata->is_grabbed)
release_grab (data, devdata->device);
else
acquire_grab (data, devdata->device);
}
else
g_printerr("ERROR: No such device '%s' in internal table.\n", gdk_device_get_name(dev));
}
static gboolean
gstyle_eyedropper_key_pressed_cb (GstyleEyedropper *self,
GdkEventKey *event,
GtkWindow *window)
{
GdkSeat *seat;
GdkDevice *pointer;
GdkDevice *keyboard;
gint x, y;
gint dx = 0;
gint dy = 0;
gint state;
g_assert (GSTYLE_IS_EYEDROPPER (self));
g_assert (event != NULL);
g_assert (GTK_IS_WINDOW (window));
state = (event->state & gtk_accelerator_get_default_mod_mask () & GDK_MOD1_MASK);
switch (event->keyval)
{
case GDK_KEY_Escape:
release_grab (self);
return GDK_EVENT_STOP;
break;
case GDK_KEY_Up:
case GDK_KEY_KP_Up:
dy = (state == GDK_MOD1_MASK) ? -CURSOR_ALT_STEP : -1;
break;
case GDK_KEY_Down:
case GDK_KEY_KP_Down:
dy = (state == GDK_MOD1_MASK) ? CURSOR_ALT_STEP : 1;
break;
case GDK_KEY_Left:
case GDK_KEY_KP_Left:
dx = (state == GDK_MOD1_MASK) ? -CURSOR_ALT_STEP : -1;
break;
case GDK_KEY_Right:
case GDK_KEY_KP_Right:
dx = (state == GDK_MOD1_MASK) ? CURSOR_ALT_STEP : 1;
break;
case GDK_KEY_Page_Up:
case GDK_KEY_KP_Page_Up:
increase_zoom_factor (self);
break;
case GDK_KEY_Page_Down:
case GDK_KEY_KP_Page_Down:
decrease_zoom_factor (self);
break;
default:
return GDK_EVENT_PROPAGATE;
}
keyboard = gdk_event_get_device ((GdkEvent *)event);
seat = gdk_device_get_seat (keyboard);
pointer = gdk_seat_get_pointer (seat);
gdk_device_get_position (pointer, NULL, &x, &y);
gdk_device_warp (pointer, self->screen, x + dx, y + dy);
return GDK_EVENT_STOP;
}
void setup_input_devices (GromitData *data)
{
/* ungrab all */
release_grab (data, NULL);
/* and clear our own device data list */
GHashTableIter it;
gpointer value;
g_hash_table_iter_init (&it, data->devdatatable);
while (g_hash_table_iter_next (&it, NULL, &value))
g_free(value);
g_hash_table_remove_all(data->devdatatable);
/* get devices */
GdkDeviceManager *device_manager = gdk_display_get_device_manager(data->display);
GList *devices, *d;
int i = 0;
devices = g_list_concat(gdk_device_manager_list_devices
(device_manager, GDK_DEVICE_TYPE_MASTER),
gdk_device_manager_list_devices
(device_manager, GDK_DEVICE_TYPE_SLAVE));
for(d = devices; d; d = d->next)
{
GdkDevice *device = (GdkDevice *) d->data;
/* only enable devices with 2 ore more axes */
if (gdk_device_get_source(device) != GDK_SOURCE_KEYBOARD && gdk_device_get_n_axes(device) >= 2)
{
gdk_device_set_mode (device, GDK_MODE_SCREEN);
GromitDeviceData *devdata;
devdata = g_malloc0(sizeof (GromitDeviceData));
devdata->device = device;
devdata->index = i;
/* get attached keyboard and grab the hotkey */
if (!data->hot_keycode)
{
g_printerr("ERROR: Grabbing hotkey from attached keyboard "
"of '%s' failed, no hotkey defined.\n",
gdk_device_get_name(device));
g_free(devdata);
continue;
}
/* if this is a slave device, we need the master */
GdkDevice *kdevice=device;
if(gdk_device_get_device_type (device) == GDK_DEVICE_TYPE_SLAVE)
kdevice=gdk_device_get_associated_device (device);
gint dev_id = -1;
g_object_get(kdevice, "device-id", &dev_id, NULL);
gint kbd_dev_id = -1;
XIDeviceInfo* devinfo;
int devicecount = 0;
devinfo = XIQueryDevice(GDK_DISPLAY_XDISPLAY(data->display),
dev_id,
&devicecount);
if(devicecount)
kbd_dev_id = devinfo->attachment;
XIFreeDeviceInfo(devinfo);
if(kbd_dev_id != -1)
{
if(data->debug)
g_printerr("DEBUG: Grabbing hotkey from keyboard '%d' .\n", kbd_dev_id);
XIEventMask mask;
unsigned char bits[4] = {0,0,0,0};
mask.mask = bits;
mask.mask_len = sizeof(bits);
XISetMask(bits, XI_KeyPress);
XISetMask(bits, XI_KeyRelease);
XIGrabModifiers modifiers[] = {{XIAnyModifier, 0}};
int nmods = 1;
gdk_error_trap_push ();
XIGrabKeycode( GDK_DISPLAY_XDISPLAY(data->display),
kbd_dev_id,
data->hot_keycode,
GDK_WINDOW_XID(data->root),
GrabModeAsync,
GrabModeAsync,
True,
&mask,
nmods,
modifiers);
XSync(GDK_DISPLAY_XDISPLAY(data->display), False);
if(gdk_error_trap_pop())
{
g_printerr("ERROR: Grabbing hotkey from keyboard device %d failed.\n",
kbd_dev_id);
g_free(devdata);
continue;
}
}
g_hash_table_insert(data->devdatatable, device, devdata);
g_printerr ("Enabled Device %d: \"%s\", (Type: %d)\n",
i++, gdk_device_get_name(device), gdk_device_get_source(device));
}
}
g_printerr ("Now %d enabled devices.\n", g_hash_table_size(data->devdatatable));
}