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Add drag-active property to tray control (#8604)

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The drag-active property can be set to provide a highlight
when the tray control is accepting target of an ongoing drag.

We can't use the drag_highlight method because we desire to
adjust the background of the widget, rather than drawing on
top of it.  Overriding these methods would work in most cases,
but in cases where GTK+ calls drag_unhighlight itself things
could break, so we use a property instead.
This commit is contained in:
Eben Eliason 2008-10-18 17:08:13 -04:00
parent e2439a7e44
commit 5cc6b27ae7
1 changed files with 73 additions and 6 deletions
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79
src/sugar/graphics/tray.py
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@ -211,7 +211,19 @@ ALIGN_TO_START = 0
ALIGN_TO_END = 1
class HTray(gtk.HBox):
__gtype_name__ = 'SugarHTray'
__gproperties__ = {
'align' : (int, None, None, 0, 1, ALIGN_TO_START,
gobject.PARAM_READWRITE |
gobject.PARAM_CONSTRUCT_ONLY),
'drag-active' : (bool, None, None, False,
gobject.PARAM_READWRITE)
}
def __init__(self, **kwargs):
self._drag_active = False
self.align = ALIGN_TO_START
gobject.GObject.__init__(self, **kwargs)
scroll_left = _TrayScrollButton('go-left', _PREVIOUS_PAGE)
@ -235,9 +247,30 @@ class HTray(gtk.HBox):
self._viewport.traybar.insert(spacer, 0)
spacer.show()
align = gobject.property(
flags=gobject.PARAM_CONSTRUCT_ONLY | gobject.PARAM_READWRITE,
default=ALIGN_TO_START, type=int)
def do_set_property(self, pspec, value):
if pspec.name == 'align':
self.align = value
elif pspec.name == 'drag-active':
self._set_drag_active(value)
else:
raise AssertionError
def do_get_property(self, pspec):
if pspec.name == 'align':
return self.align
elif pspec.name == 'drag-active':
return self._drag_active
else:
raise AssertionError
def _set_drag_active(self, active):
if self._drag_active != active:
self._drag_active = active
if self._drag_active:
self._viewport.traybar.modify_bg(gtk.STATE_NORMAL,
style.COLOR_BLACK.get_gdk_color())
else:
self._viewport.traybar.modify_bg(gtk.STATE_NORMAL, None)
def get_children(self):
children = self._viewport.traybar.get_children()[:]
@ -263,7 +296,20 @@ class HTray(gtk.HBox):
self._viewport.scroll_to_item(item)
class VTray(gtk.VBox):
__gtype_name__ = 'SugarVTray'
__gproperties__ = {
'align' : (int, None, None, 0, 1, ALIGN_TO_START,
gobject.PARAM_READWRITE |
gobject.PARAM_CONSTRUCT_ONLY),
'drag-active' : (bool, None, None, False,
gobject.PARAM_READWRITE)
}
def __init__(self, **kwargs):
self._drag_active = False
self.align = ALIGN_TO_START
gobject.GObject.__init__(self, **kwargs)
# FIXME we need a go-up icon
@ -289,9 +335,30 @@ class VTray(gtk.VBox):
self._viewport.traybar.insert(spacer, 0)
spacer.show()
align = gobject.property(
flags=gobject.PARAM_CONSTRUCT_ONLY | gobject.PARAM_READWRITE,
default=ALIGN_TO_START, type=int)
def do_set_property(self, pspec, value):
if pspec.name == 'align':
self.align = value
elif pspec.name == 'drag-active':
self._set_drag_active(value)
else:
raise AssertionError
def do_get_property(self, pspec):
if pspec.name == 'align':
return self.align
elif pspec.name == 'drag-active':
return self._drag_active
else:
raise AssertionError
def _set_drag_active(self, active):
if self._drag_active != active:
self._drag_active = active
if self._drag_active:
self._viewport.traybar.modify_bg(gtk.STATE_NORMAL,
style.COLOR_BLACK.get_gdk_color())
else:
self._viewport.traybar.modify_bg(gtk.STATE_NORMAL, None)
def get_children(self):
children = self._viewport.traybar.get_children()[:]