diff options
Diffstat (limited to 'gtk')
| -rw-r--r-- | gtk/gtktextview.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gtk/gtktextview.c b/gtk/gtktextview.c index 408129bfef..a1c0bfce83 100644 --- a/gtk/gtktextview.c +++ b/gtk/gtktextview.c @@ -4668,6 +4668,24 @@ changed_handler (GtkTextLayout *layout, priv->yoffset += new_first_para_top - old_first_para_top; gtk_adjustment_set_value (text_view->priv->vadjustment, priv->yoffset); + + /* If the height changed above our current position, then we + * need to discard the pixelcache because things wont line nup + * anymore (even if we adjust the vadjustment). + * + * Generally this doesn't happen interactively because we keep + * the insert cursor on screen when making changes. It can + * happen when code changes the first line, for example, in an + * automated fashion. + * + * There is one case where this could be optimized out such as + * when delete-range is followed by insert-text and whole lines + * are removed. API consumers can always work around that by + * avoiding the removal of a \n so no effort is made here to + * handle that. + */ + if (gtk_widget_get_realized (widget)) + _gtk_pixel_cache_invalidate (text_view->priv->pixel_cache, NULL); } /* FIXME be smarter about which anchored widgets we update */ |