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| author | Benjamin Otte <otte@redhat.com> | 2019-02-20 04:53:47 +0100 |
|---|---|---|
| committer | Benjamin Otte <otte@redhat.com> | 2019-02-20 05:26:31 +0100 |
| commit | 01f7f255b5a2bb6407825c0f5dc05ecfe5cffe88 (patch) | |
| tree | aca81a7d0a5d37121fbbedd44ed05198f2b0d637 /gtk/gtkgesturestylus.c | |
| parent | 514c3679dc7647db1e64734dab3afc9c9e761e72 (diff) | |
| download | gtk+-01f7f255b5a2bb6407825c0f5dc05ecfe5cffe88.tar.gz | |
gtk: Check return value of compute_bounds()
Half of these calls will completely break if anybody ever uses CSS
transforms with them, but hey...
Diffstat (limited to 'gtk/gtkgesturestylus.c')
| -rw-r--r-- | gtk/gtkgesturestylus.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/gtk/gtkgesturestylus.c b/gtk/gtkgesturestylus.c index 4c9d704f6d..2122f08e09 100644 --- a/gtk/gtkgesturestylus.c +++ b/gtk/gtkgesturestylus.c @@ -284,13 +284,19 @@ gtk_gesture_stylus_get_backlog (GtkGestureStylus *gesture, g_array_append_val (backlog_array, *time_coord); time_coord = &g_array_index (backlog_array, GdkTimeCoord, backlog_array->len - 1); - gtk_widget_compute_point (gtk_get_event_widget (event), - gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (gesture)), - &GRAPHENE_POINT_INIT (time_coord->axes[GDK_AXIS_X], - time_coord->axes[GDK_AXIS_Y]), - &p); - time_coord->axes[GDK_AXIS_X] = p.x; - time_coord->axes[GDK_AXIS_Y] = p.y; + if (gtk_widget_compute_point (gtk_get_event_widget (event), + gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (gesture)), + &GRAPHENE_POINT_INIT (time_coord->axes[GDK_AXIS_X], + time_coord->axes[GDK_AXIS_Y]), + &p)) + { + time_coord->axes[GDK_AXIS_X] = p.x; + time_coord->axes[GDK_AXIS_Y] = p.y; + } + else + { + g_array_set_size (backlog_array, backlog_array->len - 1); + } } *n_elems = backlog_array->len; |