246 lines
8.6 KiB
Python
246 lines
8.6 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 gen.ggettext import gettext as _
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from itertools import chain
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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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from gi.repository import Gtk
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from gi.repository 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 gui.dialog import QuestionDialog
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from gui.managedwindow 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):
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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.__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.DialogFlags.DESTROY_WITH_PARENT, None)
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self.undo_button = window.add_button(Gtk.STOCK_UNDO,
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Gtk.ResponseType.REJECT)
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self.redo_button = window.add_button(Gtk.STOCK_REDO,
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Gtk.ResponseType.ACCEPT)
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self.clear_button = window.add_button(Gtk.STOCK_CLEAR,
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Gtk.ResponseType.APPLY)
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self.close_button = window.add_button(Gtk.STOCK_CLOSE,
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Gtk.ResponseType.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.PolicyType.AUTOMATIC, Gtk.PolicyType.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.undo_count)
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end = max(path[0], self.undodb.undo_count)
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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.undo_count:
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# This transaction is an undo candidate
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self.redo_button.set_sensitive(False)
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self.undo_button.set_sensitive(self.undodb.undo_count)
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else: # path[0] >= self.undodb.undo_count:
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# This transaction is an redo candidate
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self.undo_button.set_sensitive(False)
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self.redo_button.set_sensitive(self.undodb.redo_count)
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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.StateType.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.ResponseType.CLOSE:
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self.close(obj)
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elif response_id == Gtk.ResponseType.REJECT:
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# Undo the selected entries
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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.undo_count - 1
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self._move(nsteps or -1)
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elif response_id == Gtk.ResponseType.ACCEPT:
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# Redo the selected entries
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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.undo_count
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self._move(nsteps or 1)
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elif response_id == Gtk.ResponseType.APPLY:
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self._clear_clicked()
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elif response_id == Gtk.ResponseType.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.db.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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func = self.db.undo if steps < 0 else 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_count)
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self.redo_button.set_sensitive(self.undodb.redo_count)
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self.clear_button.set_sensitive(
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self.undodb.undo_count or self.undodb.redo_count
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)
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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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# Add the undo and redo queues to the model
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for txn in chain(self.undodb.undoq, reversed(self.undodb.redoq)):
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time_text = time.ctime(txn.timestamp)
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mod_text = txn.get_description()
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self.model.append(row=[time_text, mod_text, fg, bg])
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path = (self.undodb.undo_count,)
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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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