diff options
Diffstat (limited to 'gdk')
| -rw-r--r-- | gdk/gdkevents.c | 119 | ||||
| -rw-r--r-- | gdk/gdkevents.h | 7 |
2 files changed, 125 insertions, 1 deletions
diff --git a/gdk/gdkevents.c b/gdk/gdkevents.c index 57f3da04e4..72bfbc236b 100644 --- a/gdk/gdkevents.c +++ b/gdk/gdkevents.c @@ -560,6 +560,125 @@ gdk_event_get_state (GdkEvent *event, } /** + * gdk_event_get_coords: + * @event: a #GdkEvent + * @x_root: location to put event window x coordinate + * @y_root: location to put event window y coordinate + * + * Extract the event window relative x/y coordinates from an event. + * + * Return value: %TRUE if the event delivered event window coordinates + **/ +gboolean +gdk_event_get_coords (GdkEvent *event, + gdouble *x_win, + gdouble *y_win) +{ + gdouble x = 0, y = 0; + gboolean fetched = TRUE; + + g_return_val_if_fail (event != NULL, FALSE); + + switch (event->type) + { + case GDK_CONFIGURE: + x = event->configure.x; + y = event->configure.y; + break; + case GDK_ENTER_NOTIFY: + case GDK_LEAVE_NOTIFY: + x = event->crossing.x; + y = event->crossing.y; + break; + case GDK_SCROLL: + x = event->scroll.x; + y = event->scroll.y; + break; + case GDK_BUTTON_PRESS: + case GDK_2BUTTON_PRESS: + case GDK_3BUTTON_PRESS: + case GDK_BUTTON_RELEASE: + x = event->button.x; + y = event->button.y; + break; + case GDK_MOTION_NOTIFY: + x = event->motion.x; + y = event->motion.y; + break; + default: + fetched = FALSE; + break; + } + + if (x_win) + *x_win = x; + if (y_win) + *y_win = x; + + return fetched; +} + +/** + * gdk_event_get_root_coords: + * @event: a #GdkEvent + * @x_root: location to put root window x coordinate + * @y_root: location to put root window y coordinate + * + * Extract the root window relative x/y coordinates from an event. + * + * Return value: %TRUE if the event delivered root window coordinates + **/ +gboolean +gdk_event_get_root_coords (GdkEvent *event, + gdouble *x_root, + gdouble *y_root) +{ + gdouble x = 0, y = 0; + gboolean fetched = TRUE; + + g_return_val_if_fail (event != NULL, FALSE); + + switch (event->type) + { + case GDK_MOTION_NOTIFY: + x = event->motion.x_root; + y = event->motion.y_root; + break; + case GDK_BUTTON_PRESS: + case GDK_2BUTTON_PRESS: + case GDK_3BUTTON_PRESS: + case GDK_BUTTON_RELEASE: + x = event->button.x_root; + y = event->button.y_root; + break; + case GDK_ENTER_NOTIFY: + case GDK_LEAVE_NOTIFY: + x = event->crossing.x_root; + y = event->crossing.y_root; + break; + case GDK_DRAG_ENTER: + case GDK_DRAG_LEAVE: + case GDK_DRAG_MOTION: + case GDK_DRAG_STATUS: + case GDK_DROP_START: + case GDK_DROP_FINISHED: + x = event->dnd.x_root; + y = event->dnd.y_root; + break; + default: + fetched = FALSE; + break; + } + + if (x_root) + *x_root = x; + if (y_root) + *y_root = x; + + return fetched; +} + +/** * gdk_event_get_axis: * @event: a #GdkEvent * @axis_use: the axis use to look for diff --git a/gdk/gdkevents.h b/gdk/gdkevents.h index a1eeb02ed2..763c1a377a 100644 --- a/gdk/gdkevents.h +++ b/gdk/gdkevents.h @@ -456,10 +456,15 @@ void gdk_event_free (GdkEvent *event); guint32 gdk_event_get_time (GdkEvent *event); gboolean gdk_event_get_state (GdkEvent *event, GdkModifierType *state); +gboolean gdk_event_get_coords (GdkEvent *event, + gdouble *x_win, + gdouble *y_win); +gboolean gdk_event_get_root_coords (GdkEvent *event, + gdouble *x_root, + gdouble *y_root); gboolean gdk_event_get_axis (GdkEvent *event, GdkAxisUse axis_use, gdouble *value); - void gdk_event_handler_set (GdkEventFunc func, gpointer data, GDestroyNotify notify); |