Commit Graph

4 Commits

Author SHA1 Message Date
Ignacio Rodríguez
b6d449681d Example fixes
- replaced Gtk.HBox/Gtk.VBox by GtkBox as seen in [1] and [2]
GtkHbox and GtkVBox are deprecated
- use delete-event instead of destroy event in GtkWindow
- replaced icon_size for pixel_size where used
it's also deprecated as seen in commit [3]
- use sugar_theme in all examples; set it manually not by just
importing common module
- fixed GtkBox.pack_start arguments
- flake/pep8 fixes

[1] https://developer.gnome.org/gtk3/stable/GtkHBox.html
[2] https://developer.gnome.org/gtk3/stable/GtkVBox.html
[3] 5802d67ee1
2017-01-14 13:02:50 -03:00
Ignacio Rodríguez
a735c7a6ce fixed the flake8 errors for examples
doesn't affect that much the code, it just remove
unused modules and make it look better.
2017-01-05 03:44:33 -03:00
Gonzalo Odiard
49365e132c New invoker, TreeViewInvoker
This new invoker is able to handle all the palettes on a treeview,
removing the need of one invoker per cell renderer (CellRendererInvoker).
This simplifies the code and makes it more efficient.
Also removes the logic from the CellRendererIcon, which
should only care about drawing itself. [1]

Is important to note than in Gtk3 a CellRenderer is not a GtkWidget
then can't know when the mouse is over it or have the usual events
used by other invokers, making the implementation CellRendererInvoker
very complicate.

This commit also removes the invoker of CellRendererIcon.

The ScrollingDetector logic is simplified too,
because now there are only one invoker instead of one by renderer
and the example code updated.

[1] https://developer.gnome.org/gtk3/stable/GtkCellRenderer.html
2015-05-14 12:04:07 -03:00
Gonzalo Odiard
5626a6c182 Detect scrolling in treviews and optimize drawing
Detecting if the treeview is scrolling we can improve the performance of
the CellRendererIcon by avoiding unneeded calculations.

The example scrollingdetector.py shows how this can be used.  The
changes are backward compatible.

Signed-off-by: Manuel Quiñones <manuel.por.aca@gmail.com>
Signed-off-by: Gonzalo Odiard <godiard@sugarlabs.org>
2015-05-14 12:04:07 -03:00