Previously, do_validate_rows() validated 300 rows per iteration. While
this is usually not problematic, as the typical tree view contains less
than 100 rows. Tree views with a lot of columns or complex cell
renderers could take inacceptably long, like:
- Epiphany's location bar entry completion has multiline and marked up
text in every cell. Validating a single row took ~1.5ms here.
- In the list view in Nautilus, When enabling all columns, validating a
single row would take ~3ms.
With 300 rows per iteration, that made those examples take 500ms/1s in a
signle main loop callback, and this obviously caused responsiveness
problems.
Now the code uses a timer and limits the time for validating rows to
30ms. This can cause less lines to be invalidated per call, so the
function might be called more often, but generally results in more
responsive applications.
Add the following functions based on a patch from Christian Dywan:
- gtk_widget_set/get_can_focus()
- gtk_widget_set/get_can_default()
- gtk_widget_has_default()
To fix this I replaced the code that creates an internal buffer
at init and construction time with code that creates a buffer
at _get_buffer() time, this is the same as GtkTextView does and
fixes the crashes for me.
We grab the default to the apply, forward or close buttons, as
appropriate. Also, make sure that the logic for setting the focus
to the best place on page change is applied to the initial page.
Add a tooltip that shows the full path of the current folder, to avoid
ambiguity. We only show the tooltip when the expander is collapsed to
avoid cluttering the full file chooser.
- gtk_widget_has_focus() for GTK_WIDGET_HAS_FOCUS()
- gtk_widget_get_sensitive() for GTK_WIDGET_SENSITIVE()
- gtk_widget_is_sensitive() for GTK_WIDGET_IS_SENSITIVE()
Implement _gdk_win32_window_destroy() by just renaming
_gdk_windowing_window_destroy(), removed superfuous stub.
Also cleaned up implementations of gdk_win32_window_set_background()
and gdk_win32_window_set_back_pixmap() - removed stuff now done at the
respective gdk_window_*() function.
