# # Gramps - a GTK+/GNOME based genealogy program # # Copyright (C) 2001-2007 Donald N. Allingham # # 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # # $Id$ """ Provide the base class for GRAMPS' DataView classes """ #---------------------------------------------------------------- # # python modules # #---------------------------------------------------------------- import logging _LOG = logging.getLogger('.pageview') #---------------------------------------------------------------- # # gtk # #---------------------------------------------------------------- import gtk from gen.ggettext import gettext as _ #---------------------------------------------------------------- # # GRAMPS # #---------------------------------------------------------------- from gui.dbguielement import DbGUIElement from gui.widgets.menutoolbuttonaction import MenuToolButtonAction #------------------------------------------------------------------------------ # # PageView # #------------------------------------------------------------------------------ class PageView(DbGUIElement): """ The PageView class is the base class for all Data Views in GRAMPS. All Views should derive from this class. The ViewManager understands the public interface of this class The following attributes are available ..attribute:: active is the view active at the moment (visible in Gramps as the main view) ..attribute:: dirty bool, is the view current with the database or not. A dirty view triggers a rebuild when it becomes active ..attribute:: _dirty_on_change_inactive read/write bool by inheriting classes. Views can behave two ways to signals: 1. if the view is inactive, set it dirty, and rebuild the view when it becomes active. In this case, this method returns True 2. if the view is inactive, try to stay in sync with database. Only rebuild or other large changes make view dirty ..attribute:: title title of the view ..attribute:: dbstate the dbstate ..attribute:: uistate the displaystate ..attribute:: category the category to which the view belongs. Views in the same category are placed behind the same button in the sidebar """ def __init__(self, title, dbstate, uistate): self.title = title self.dbstate = dbstate self.uistate = uistate self.action_list = [] self.action_toggle_list = [] self.action_toolmenu_list = [] self.action_toolmenu = {} #easy access to toolmenuaction and proxies self.action_group = None self.additional_action_groups = [] self.additional_uis = [] self.widget = None self.ui_def = '' self.dirty = True self.active = False self._dirty_on_change_inactive = True self.func_list = {} self.category = "Miscellaneous" self.translated_category = _("Miscellaneous") self.dbstate.connect('no-database', self.disable_action_group) self.dbstate.connect('database-changed', self.enable_action_group) self.model = None self.selection = None self.handle_col = 0 DbGUIElement.__init__(self, dbstate.db) def call_function(self, key): """ Calls the function associated with the key value """ self.func_list.get(key)() def post(self): """ Called after a page is created. """ pass def set_active(self): """ Called with the PageView is set as active. If the page is "dirty", then we rebuild the data. """ self.active = True if self.dirty: self.uistate.set_busy_cursor(True) self.build_tree() self.uistate.set_busy_cursor(False) def set_inactive(self): """ Marks page as being inactive (not currently displayed) """ self.active = False def build_tree(self): """ Rebuilds the current display. This must be overridden by the derived class. """ raise NotImplementedError def navigation_type(self): """ Indictates the navigation type. Currently, we only support navigation for views that are Person centric. """ return None def ui_definition(self): """ returns the XML UI definition for the UIManager """ return self.ui_def def additional_ui_definitions(self): """ Return any additional interfaces for the UIManager that the view needs to define. """ return self.additional_uis def disable_action_group(self): """ Turns off the visibility of the View's action group, if defined """ if self.action_group: self.action_group.set_visible(False) def enable_action_group(self, obj): """ Turns on the visibility of the View's action group, if defined """ if self.action_group: self.action_group.set_visible(True) def get_stock(self): """ Return image associated with the view category, which is used for the icon for the button. """ return gtk.STOCK_MISSING_IMAGE def get_viewtype_stock(self): """ Return immage associated with the viewtype inside a view category, it will be used for the icon on the button to select view in the category """ return gtk.STOCK_MISSING_IMAGE def get_title(self): """ Return the title of the view. This is used to define the text for the button, and for the tab label. """ return self.title def set_category(self, category): """ Set the category of the view. This is used to define the text for the button, and for the tab label. category - a tuple of the form (category, translated-category) """ if isinstance(category, tuple): self.category = category[0] self.translated_category = category[1] else: raise AttributeError("View category must be (name, translated-name)") def get_category(self): """ Return the category name of the view. This is used to define the text for the button, and for the tab label. """ return self.category def get_translated_category(self): """ Return the translated category name of the view. This is used to define the text for the button, and for the tab label. """ return self.translated_category def get_display(self): """ Builds the graphical display, returning the top level widget. """ if not self.widget: self.widget = self.build_widget() return self.widget def build_widget(self): """ Builds the container widget for the interface. Must be overridden by the the base class. Returns a gtk container widget. """ raise NotImplementedError def define_actions(self): """ Defines the UIManager actions. Called by the ViewManager to set up the View. The user typically defines self.action_list and self.action_toggle_list in this function. Derived classes must override this function. """ raise NotImplementedError def __build_action_group(self): """ Create an UIManager ActionGroup from the values in self.action_list and self.action_toggle_list. The user should define these in self.define_actions """ self.action_group = gtk.ActionGroup(self.title) if len(self.action_list) > 0: self.action_group.add_actions(self.action_list) if len(self.action_toggle_list) > 0: self.action_group.add_toggle_actions(self.action_toggle_list) for action_toolmenu in self.action_toolmenu_list: self.action_toolmenu[action_toolmenu[0]] = \ MenuToolButtonAction(action_toolmenu[0], #unique name action_toolmenu[1], #label action_toolmenu[2], #tooltip action_toolmenu[3], #callback action_toolmenu[4] #arrow tooltip ) self.action_group.add_action( self.action_toolmenu[action_toolmenu[0]]) def _add_action(self, name, stock_icon, label, accel=None, tip=None, callback=None): """ Add an action to the action list for the current view. """ self.action_list.append((name, stock_icon, label, accel, tip, callback)) def _add_toggle_action(self, name, stock_icon, label, accel=None, tip=None, callback=None, value=False): """ Add a toggle action to the action list for the current view. """ self.action_toggle_list.append((name, stock_icon, label, accel, tip, callback, value)) def _add_toolmenu_action(self, name, label, tooltip, callback, arrowtooltip): """ Add a menu action to the action list for the current view. """ self.action_toolmenu_list.append((name, label, tooltip, callback, arrowtooltip)) def get_actions(self): """ Return the actions that should be used for the view. This includes the standard action group (which handles the main toolbar), along with additional action groups. If the action group is not defined, we build it the first time. This allows us to delay the intialization until it is really needed. The ViewManager uses this function to extract the actions to install into the UIManager. """ if not self.action_group: self.__build_action_group() return [self.action_group] + self.additional_action_groups def _add_action_group(self, group): """ Allows additional action groups to be added to the view. """ self.additional_action_groups.append(group) def change_page(self): """ Called when the page changes. """ self.uistate.clear_filter_results() def edit(self, obj): """ Template function to allow the editing of the selected object """ raise NotImplementedError def remove(self, handle): """ Template function to allow the removal of an object by its handle """ raise NotImplementedError def remove_object_from_handle(self, handle): """ Template function to allow the removal of an object by its handle """ raise NotImplementedError def add(self, obj): """ Template function to allow the adding of a new object """ raise NotImplementedError def _key_press(self, obj, event): """ Define the action for a key press event """ # TODO: This is never used? (replaced in ListView) #act if no modifier, and allow Num Lock as MOD2_MASK if not event.state or event.state in (gtk.gdk.MOD2_MASK, ): if event.keyval in (gtk.keysyms.Return, gtk.keysyms.KP_Enter): self.edit(obj) return True return False def on_delete(self): """ Method called on shutdown. Data views should put code here that should be called when quiting the main application. """ pass