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Arreglos estéticos al menu de la botonera
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| #!/usr/bin/env python2 | ||
| # -*- coding: utf-8 -*- | ||
| # | ||
| # Copyright 2008-2011 Zuza Software Foundation | ||
| # | ||
| # This file is part of Virtaal. | ||
| # | ||
| # This program is free software; you can redistribute it and/or modify | ||
| # it under the terms of the GNU General Public License as published by | ||
| # the Free Software Foundation; either version 2 of the License, or | ||
| # (at your option) any later version. | ||
| # | ||
| # This program is distributed in the hope that it will be useful, | ||
| # but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| # GNU General Public License for more details. | ||
| # | ||
| # You should have received a copy of the GNU General Public License | ||
| # along with this program; if not, see <http://www.gnu.org/licenses/>. | ||
|
|
||
| import gtk | ||
|
|
||
| # Positioning constants below: | ||
| # POS_CENTER_BELOW: Centers the pop-up window below the button (default). | ||
| # POS_CENTER_ABOVE: Centers the pop-up window above the button. | ||
| # POS_NW_SW: Positions the pop-up window so that its North West (top left) | ||
| # corner is on the South West corner of the button. | ||
| # POS_NE_SE: Positions the pop-up window so that its North East (top right) | ||
| # corner is on the South East corner of the button. RTL of POS_NW_SW | ||
| # POS_NW_NE: Positions the pop-up window so that its North West (top left) | ||
| # corner is on the North East corner of the button. | ||
| # POS_SW_NW: Positions the pop-up window so that its South West (bottom left) | ||
| # corner is on the North West corner of the button. | ||
| # POS_SE_NE: Positions the pop-up window so that its South East (bottom right) | ||
| # corner is on the North East corner of the button. RTL of POS_SW_NW | ||
| POS_CENTER_BELOW, POS_CENTER_ABOVE, POS_NW_SW, POS_NE_SE, POS_NW_NE, POS_SW_NW, POS_SE_NE = range(7) | ||
| # XXX: Add position symbols above as needed and implementation in | ||
| # _update_popup_geometry() | ||
|
|
||
| _rtl_pos_map = { | ||
| POS_CENTER_BELOW: POS_CENTER_BELOW, | ||
| POS_CENTER_ABOVE: POS_CENTER_ABOVE, | ||
| POS_SW_NW: POS_SE_NE, | ||
| POS_NW_SW: POS_NE_SE, | ||
| } | ||
|
|
||
| class PopupMenuButton(gtk.ToggleButton): | ||
| """A toggle button that displays a pop-up menu when clicked.""" | ||
|
|
||
| # INITIALIZERS # | ||
| def __init__(self, label=None, menu_pos=POS_NW_SW): | ||
| gtk.ToggleButton.__init__(self, label=label) | ||
| self.set_relief(gtk.RELIEF_NONE) | ||
| self.set_menu(gtk.Menu()) | ||
|
|
||
| if self.get_direction() == gtk.TEXT_DIR_LTR: | ||
| self.menu_pos = menu_pos | ||
| else: | ||
| self.menu_pos = _rtl_pos_map.get(menu_pos, POS_SE_NE) | ||
|
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| self.connect('toggled', self._on_toggled) | ||
|
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|
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| # ACCESSORS # | ||
| def set_menu(self, menu): | ||
| if getattr(self, '_menu_selection_done_id', None): | ||
| self.menu.disconnect(self._menu_selection_done_id) | ||
| self.menu = menu | ||
| self._menu_selection_done_id = self.menu.connect('selection-done', self._on_menu_selection_done) | ||
|
|
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| def get_label_widget(self): | ||
| return self.child | ||
|
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| def _get_text(self): | ||
| return unicode(self.get_label()) | ||
| def _set_text(self, value): | ||
| self.set_label(value) | ||
| text = property(_get_text, _set_text) | ||
|
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||
|
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| # METHODS # | ||
| def _calculate_popup_pos(self, menu): | ||
| menu_width, menu_height = 0, 0 | ||
| menu_alloc = menu.get_allocation() | ||
| if menu_alloc.height > 1: | ||
| menu_height = menu_alloc.height | ||
| menu_width = menu_alloc.width | ||
| else: | ||
| menu_width, menu_height = menu.size_request() | ||
|
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| btn_window_xy = self.window.get_origin() | ||
| btn_alloc = self.get_allocation() | ||
|
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| # Default values are POS_SW_NW | ||
| x = btn_window_xy[0] + btn_alloc.x | ||
| y = btn_window_xy[1] + btn_alloc.y - menu_height | ||
| if self.menu_pos == POS_NW_SW: | ||
| y = btn_window_xy[1] + btn_alloc.y + btn_alloc.height | ||
| elif self.menu_pos == POS_NE_SE: | ||
| x -= (menu_width - btn_alloc.width) | ||
| y = btn_window_xy[1] + btn_alloc.y + btn_alloc.height | ||
| elif self.menu_pos == POS_SE_NE: | ||
| x -= (menu_width - btn_alloc.width) | ||
| elif self.menu_pos == POS_NW_NE: | ||
| x += btn_alloc.width | ||
| y = btn_window_xy[1] + btn_alloc.y | ||
| elif self.menu_pos == POS_CENTER_BELOW: | ||
| x -= (menu_width - btn_alloc.width) / 2 | ||
| elif self.menu_pos == POS_CENTER_ABOVE: | ||
| x -= (menu_width - btn_alloc.width) / 2 | ||
| y = btn_window_xy[1] - menu_height | ||
| return (x, y, True) | ||
|
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| def popdown(self): | ||
| self.menu.popdown() | ||
| return True | ||
|
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| def popup(self): | ||
| self.menu.popup(None, None, self._calculate_popup_pos, 0, 0) | ||
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| # EVENT HANDLERS # | ||
| def _on_menu_selection_done(self, menu): | ||
| self.set_active(False) | ||
|
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| def _on_toggled(self, togglebutton): | ||
| assert self is togglebutton | ||
|
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| if self.get_active(): | ||
| self.popup() | ||
| else: | ||
| self.popdown() |