250 lines
8.7 KiB
Python
250 lines
8.7 KiB
Python
#
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# Gramps - a GTK+/GNOME based genealogy program
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#
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# Copyright (C) 2000-2006 Donald N. Allingham
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#
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# This program is free software; you can redistribute it and/or modiy
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# $Id$
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# Written by Alex Roitman
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#------------------------------------------------------------------------
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#
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# standard python modules
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#
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#------------------------------------------------------------------------
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import time
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from gettext import gettext as _
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#-------------------------------------------------------------------------
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#
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# GTK/Gnome modules
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#
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#-------------------------------------------------------------------------
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import gtk
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import gobject
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#-------------------------------------------------------------------------
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#
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# GRAMPS modules
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#
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#-------------------------------------------------------------------------
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from QuestionDialog import QuestionDialog
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import ManagedWindow
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#-------------------------------------------------------------------------
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#
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# UndoHistory class
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#
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#-------------------------------------------------------------------------
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class UndoHistory(ManagedWindow.ManagedWindow):
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"""
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The UndoHistory provides a list view with all the editing
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steps available for undo/redo. Selecting a line in the list
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will revert/advance to the appropriate step in editing history.
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"""
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def __init__(self, dbstate, uistate):
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self.title = _("Undo History")
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ManagedWindow.ManagedWindow.__init__(self,uistate,[],self.__class__)
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self.db = dbstate.db
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self.undodb = self.db.undodb
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self.dbstate = dbstate
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window = gtk.Dialog("",uistate.window,
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gtk.DIALOG_DESTROY_WITH_PARENT,None)
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self.undo_button = window.add_button(gtk.STOCK_UNDO,
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gtk.RESPONSE_REJECT)
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self.redo_button = window.add_button(gtk.STOCK_REDO,
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gtk.RESPONSE_ACCEPT)
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self.clear_button = window.add_button(gtk.STOCK_CLEAR,
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gtk.RESPONSE_APPLY)
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self.close_button = window.add_button(gtk.STOCK_CLOSE,
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gtk.RESPONSE_CLOSE)
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self.set_window(window, None, self.title)
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self.window.set_size_request(400,200)
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self.window.connect('response', self._response)
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scrolled_window = gtk.ScrolledWindow()
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scrolled_window.set_policy(gtk.POLICY_AUTOMATIC,gtk.POLICY_AUTOMATIC)
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self.tree = gtk.TreeView()
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self.model = gtk.ListStore(gobject.TYPE_STRING, gobject.TYPE_STRING,
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gobject.TYPE_STRING, gobject.TYPE_STRING)
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self.selection = self.tree.get_selection()
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self.renderer = gtk.CellRendererText()
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self.tree.set_model(self.model)
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self.tree.set_rules_hint(True)
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self.tree.append_column(
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gtk.TreeViewColumn(_('Original time'), self.renderer,
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text=0,foreground=2,background=3))
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self.tree.append_column(
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gtk.TreeViewColumn(_('Action'), self.renderer,
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text=1,foreground=2,background=3))
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scrolled_window.add(self.tree)
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self.window.vbox.add(scrolled_window)
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self.window.show_all()
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self._build_model()
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self._update_ui()
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self.selection.connect('changed',self._selection_changed)
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self.show()
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def _selection_changed(self, obj):
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(model, node) = self.selection.get_selected()
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if not node:
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return
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path = self.model.get_path(node)
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start = min(path[0],self.undodb.undoindex+1)
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end = max(path[0],self.undodb.undoindex+1)
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self._paint_rows(0,len(self.model)-1,False)
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self._paint_rows(start,end,True)
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if path[0] < self.undodb.undoindex+1:
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self.redo_button.set_sensitive(False)
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self.undo_button.set_sensitive(self.undodb.undo_available())
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if path[0] > self.undodb.undoindex+1:
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self.undo_button.set_sensitive(False)
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self.redo_button.set_sensitive(self.undodb.redo_available())
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if path[0] == self.undodb.undoindex+1:
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self.undo_button.set_sensitive(self.undodb.undo_available())
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self.redo_button.set_sensitive(self.undodb.redo_available())
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def _paint_rows(self,start,end,selected=False):
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if selected:
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(fg,bg) = get_colors(self.tree,gtk.STATE_SELECTED)
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else:
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fg = bg = None
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for idx in range(start,end+1):
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the_iter = self.model.get_iter( (idx,) )
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self.model.set(the_iter,2,fg)
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self.model.set(the_iter,3,bg)
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def _response(self, obj,response_id):
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if response_id == gtk.RESPONSE_CLOSE:
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self.close(obj)
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elif response_id == gtk.RESPONSE_REJECT:
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(model, node) = self.selection.get_selected()
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if not node:
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return
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path = self.model.get_path(node)
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nsteps = path[0]-self.undodb.undoindex-1
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if nsteps == 0:
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self._move(-1)
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else:
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self._move(nsteps)
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elif response_id == gtk.RESPONSE_ACCEPT:
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(model, node) = self.selection.get_selected()
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if not node:
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return
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path = self.model.get_path(node)
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nsteps = path[0]-self.undodb.undoindex-1
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if nsteps == 0:
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self._move(1)
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else:
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self._move(nsteps)
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elif response_id == gtk.RESPONSE_APPLY:
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self._clear_clicked()
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elif response_id == gtk.RESPONSE_DELETE_EVENT:
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self.close(obj)
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def build_menu_names(self, obj):
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return (self.title,None)
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def _clear_clicked(self, obj=None):
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QuestionDialog(_("Delete confirmation"),
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_("Are you sure you want to clear the Undo history?"),
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_("Clear"),
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self.clear,
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self.window)
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def clear(self):
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self.undodb.clear()
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self.undodb.abort_possible = False
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self.update()
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if self.db.undo_callback:
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self.db.undo_callback(None)
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if self.db.redo_callback:
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self.db.redo_callback(None)
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def _move(self,steps=-1):
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if steps == 0 :
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return
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elif steps < 0:
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func = self.db.undo
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elif steps > 0:
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func = self.db.redo
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for step in range(abs(steps)):
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func(False)
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self.update()
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def _update_ui(self):
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self._paint_rows(0,len(self.model)-1,False)
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self.undo_button.set_sensitive(self.undodb.undo_available())
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self.redo_button.set_sensitive(self.undodb.redo_available())
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self.clear_button.set_sensitive(
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self.undodb.undo_available() or self.undodb.redo_available() )
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def _build_model(self):
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self.model.clear()
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fg = bg = None
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if self.undodb.undo_history_timestamp:
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if self.db.abort_possible:
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mod_text = _('Database opened')
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else:
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mod_text = _('History cleared')
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time_text = time.ctime(self.undodb.undo_history_timestamp)
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self.model.append(row=[time_text,mod_text,fg,bg])
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# Get the not-None portion of transaction list
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translist = [item for item in self.undodb.translist if item]
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for transaction in translist:
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time_text = time.ctime(transaction.timestamp)
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mod_text = transaction.get_description()
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self.model.append(row=[time_text,mod_text,fg,bg])
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path = (self.undodb.undoindex+1,)
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self.selection.select_path(path)
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def update(self):
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self._build_model()
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self._update_ui()
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def gtk_color_to_str(color):
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color_str = u"#%02x%02x%02x" % (color.red/256,
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color.green/256,
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color.blue/256)
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return color_str
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def get_colors(obj,state):
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fg_color = obj.style.fg[state]
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bg_color = obj.style.bg[state]
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fg_color_str = gtk_color_to_str(fg_color)
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bg_color_str = gtk_color_to_str(bg_color)
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return (fg_color_str,bg_color_str)
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