#!/usr/bin/env python # Copyright (C) 2007, Eduardo Silva (edsiper@gmail.com) # # 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, write to the Free Software # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA import gtk from gtk import gdk, keysyms import gobject import pango ALIGNMENT_AUTOMATIC = 0 ALIGNMENT_BOTTOM_LEFT = 1 ALIGNMENT_BOTTOM_RIGHT = 2 ALIGNMENT_LEFT_BOTTOM = 3 ALIGNMENT_LEFT_TOP = 4 ALIGNMENT_RIGHT_BOTTOM = 5 ALIGNMENT_RIGHT_TOP = 6 ALIGNMENT_TOP_LEFT = 7 ALIGNMENT_TOP_RIGHT = 8 class Palette(gtk.Window): __gtype_name__ = 'SugarPalette' __gproperties__ = { 'parent': (object, None, None, gobject.PARAM_READWRITE), 'alignment': (gobject.TYPE_INT, None, None, 0, 8, ALIGNMENT_AUTOMATIC, gobject.PARAM_READWRITE), 'is-tooltip': (bool, None, None, False, gobject.PARAM_READWRITE | gobject.PARAM_CONSTRUCT_ONLY) } _PADDING = 1 _WIN_BORDER = 5 def __init__(self, **kwargs): gobject.GObject.__init__(self, type=gtk.WINDOW_POPUP, **kwargs) gtk.Window.__init__(self) self._alignment = ALIGNMENT_AUTOMATIC self._palette_label = gtk.Label() #self._palette_label.set_justify(gtk.JUSTIFY_LEFT) self._palette_label.show() vbox = gtk.VBox(False, 0) vbox.pack_start(self._palette_label, True, True, self._PADDING) # If it's a tooltip palette.. if not self._is_tooltip: self._separator = gtk.HSeparator() self._separator.hide() self._menu_bar = gtk.MenuBar() self._menu_bar.set_pack_direction(gtk.PACK_DIRECTION_TTB) self._menu_bar.show() self._content = gtk.HBox() self._content.show() self._button_bar = gtk.HButtonBox() self._button_bar.show() # Set main container vbox.pack_start(self._separator, True, True, self._PADDING) vbox.pack_start(self._menu_bar, True, True, self._PADDING) vbox.pack_start(self._content, True, True, self._PADDING) vbox.pack_start(self._button_bar, True, True, self._PADDING) vbox.show() self.add(vbox) # Widget events self.connect('motion-notify-event', self._mouse_over_widget_cb) self.connect('leave-notify-event', self._mouse_out_widget_cb) self.connect('button-press-event', self._close_palette_cb) self.connect('key-press-event', self._on_key_press_event_cb) self.set_border_width(self._WIN_BORDER) def do_set_property(self, pspec, value): if pspec.name == 'parent': self._parent_widget = value elif pspec.name == 'alignment': self._alignment = value elif pspec.name == 'is-tooltip': self._is_tooltip = value else: raise AssertionError def set_position(self): # Automatic Alignment if self._alignment == ALIGNMENT_AUTOMATIC: # Trying Different types of ALIGNMENTS, # and return the choosen one if self._try_position(ALIGNMENT_BOTTOM_LEFT): return ALIGNMENT_BOTTOM_LEFT elif self._try_position(ALIGNMENT_BOTTOM_RIGHT): return ALIGNMENT_BOTTOM_RIGHT elif self._try_position(ALIGNMENT_LEFT_BOTTOM): return ALIGNMENT_LEFT_BOTTOM elif self._try_position(ALIGNMENT_LEFT_TOP): return ALIGNMENT_LEFT_TOP elif self._try_position(ALIGNMENT_RIGHT_BOTTOM): return ALIGNMENT_RIGHT_BOTTOM elif self._try_position(ALIGNMENT_RIGHT_TOP): return ALIGNMENT_RIGHT_TOP elif self._try_position(ALIGNMENT_TOP_LEFT): return ALIGNMENT_TOP_LEFT elif self._try_position(ALIGNMENT_TOP_RIGHT): return ALIGNMENT_TOP_RIGHT else: # Manual Alignment move_x, move_y = self._calc_position(self._alignment) self.move(move_x, move_y) def _try_position(self, alignment): scr_width = gtk.gdk.screen_width() scr_height = gtk.gdk.screen_height() plt_width, plt_height = self.size_request() move_x, move_y = self._calc_position(alignment) self.move(move_x, move_y) plt_x, plt_y = self.window.get_origin() if (plt_x<0 or plt_x+plt_width>scr_width) or (plt_y<0 or plt_y+plt_height>scr_height): return False else: self.move(move_x, move_y) return True def _calc_position(self, alignment): win_x, win_y = self._parent_widget.window.get_origin() parent_rectangle = self._parent_widget.get_allocation() palette_rectangle = self.get_allocation() palette_width, palette_height = self.size_request() if alignment == ALIGNMENT_BOTTOM_LEFT: move_x = win_x + parent_rectangle.x move_y = win_y + parent_rectangle.y + parent_rectangle.height elif alignment == ALIGNMENT_BOTTOM_RIGHT: move_x = (win_x + parent_rectangle.x + parent_rectangle.width) - palette_width move_y = win_y + parent_rectangle.y + parent_rectangle.height elif alignment == ALIGNMENT_LEFT_BOTTOM: move_x = (win_x + parent_rectangle.x) - palette_width move_y = win_y + parent_rectangle.y elif alignment == ALIGNMENT_LEFT_TOP: move_x = (win_x + parent_rectangle.x) - palette_width move_y = (win_y + parent_rectangle.y + parent_rectangle.height) - palette_rectangle.height elif alignment == ALIGNMENT_RIGHT_BOTTOM: move_x = win_x + parent_rectangle.x + parent_rectangle.width move_y = win_y + parent_rectangle.y elif alignment == ALIGNMENT_RIGHT_TOP: move_x = win_x + parent_rectangle.x + parent_rectangle.width move_y = (win_y + parent_rectangle.y + parent_rectangle.height) - palette_rectangle.height elif alignment == ALIGNMENT_TOP_LEFT: move_x = (win_x + parent_rectangle.x) move_y = (win_y + parent_rectangle.y) - (palette_rectangle.height) elif alignment == ALIGNMENT_TOP_RIGHT: move_x = (win_x + parent_rectangle.x + parent_rectangle.width) - palette_width move_y = (win_y + parent_rectangle.y) - (palette_rectangle.height) return move_x, move_y def set_primary_state(self, label, accel_path=None): if accel_path != None: item = gtk.MenuItem(label) item.set_accel_path(accel_path) self.append_menu_item(item) self._separator.hide() else: self._palette_label.set_text(label) if not self._is_tooltip: self._separator.show() def append_menu_item(self, item): self._menu_bar.append(item) item.show() def set_content(self, widget): self._content.pack_start(widget, True, True, self._PADDING) widget.show() def append_button(self, button): button.connect('released', self._close_palette_cb) self._button_bar.pack_start(button, True, True, self._PADDING) button.show() # Display the palette and set the position on the screen def popup(self): # We need to know if the mouse pointer continue inside # the parent widget (opener) pointer_x, pointer_y = self._parent_widget.get_pointer() parent_alloc = self._parent_widget.get_allocation() pointer_rect = gdk.Rectangle(pointer_x + parent_alloc.x, pointer_y + parent_alloc.y, 1, 1) if (self._parent_widget.allocation.intersect(pointer_rect).width == 0): return self.show() self.set_position() self._pointer_grab() # PRIVATE METHODS def _is_mouse_out(self, window, event): # If we're clicking outside of the Palette # return True event_rect = gdk.Rectangle(int(event.x), int(event.y), 1, 1) if (event.window != self.window or self.allocation.intersect(event_rect).width==0): return True else: return False def _pointer_grab(self): gtk.gdk.pointer_grab(self.window, owner_events=False, event_mask=gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.BUTTON_RELEASE_MASK | gtk.gdk.ENTER_NOTIFY_MASK | gtk.gdk.LEAVE_NOTIFY_MASK | gtk.gdk.POINTER_MOTION_MASK) gdk.keyboard_grab(self.window, False) # SIGNAL HANDLERS # Release the GDK pointer and hide the palette def _close_palette_cb(self, widget=None, event=None): gtk.gdk.pointer_ungrab() self.hide() # Mouse is out of the widget def _mouse_out_widget_cb(self, widget, event): if (widget == self) and self._is_mouse_out(widget, event): self._pointer_grab() # Mouse inside the widget def _mouse_over_widget_cb(self, widget, event): gtk.gdk.pointer_ungrab() # Some key is pressed def _on_key_press_event_cb(self, window, event): # Escape or Alt+Up: Close # Enter, Return or Space: Select keyval = event.keyval state = event.state & gtk.accelerator_get_default_mod_mask() if (keyval == keysyms.Escape or ((keyval == keysyms.Up or keyval == keysyms.KP_Up) and state == gdk.MOD1_MASK)): self._close_palette_cb() elif keyval == keysyms.Tab: self._close_palette_cb()