Viewing file:  LingeringSelectionWindow.py (1.59 KB) -rw-r--r--
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import gtk
import glib
class LingeringSelectionWindow (gtk.Window):
"""
Leave an imprint on the screen of the selected row in a treeview
when it is activated.
This is mainly used when the window containing the treeview is
hidden on the same activation.
"""
def __init__ (self, view):
"""
Just create the LingeringSelectionWindow passing the treeview
to manage in the constructor and everything will be taken care of.
"""
gtk.Window.__init__ (self, gtk.WINDOW_POPUP)
self.linger_time = 1 # Linger for one second
self.set_focus_on_map (False)
view.connect ("row-activated", self._on_view_activated)
def _on_view_activated (self, view, path, column):
# Check if this row has children, if it does
# do nothing
model = view.get_model()
if model.iter_has_child (model.get_iter(path)) :
"linger block"
return
pixmap = view.create_row_drag_icon (path)
if pixmap == None:
self.hide()
return
image = gtk.Image()
image.set_from_pixmap (pixmap, None)
if self.get_child() :
self.remove (self.get_child())
self.add (image)
self._update_position (view, path, column)
self._linger ()
def _update_position (self, view, path, column):
"""
Move the window to the activated paths position
"""
ox, oy = view.window.get_origin ()
area = view.get_background_area (path, column)
x, y = view.tree_to_widget_coords (area.x, area.y)
self.move (x + ox, area.y + oy)
self.resize (area.width, area.height)
def _linger (self):
"""
Display for a short while
"""
self.show_all ()
glib.timeout_add_seconds (self.linger_time, self.hide)
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