643 lines
24 KiB
Python
643 lines
24 KiB
Python
#
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# Gramps - a GTK+/GNOME based genealogy program
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#
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# Copyright (C) 2008 Zsolt Foldvari
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#
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# This program is free software; you can redistribute it and/or modify
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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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"Text editor subclassed from gtk.TextView handling L{StyledText}."
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__all__ = ["StyledTextEditor"]
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#-------------------------------------------------------------------------
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#
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# Python modules
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#
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#-------------------------------------------------------------------------
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from gettext import gettext as _
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import logging
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_LOG = logging.getLogger(".widgets.styledtexteditor")
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#-------------------------------------------------------------------------
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#
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# GTK libraries
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#
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#-------------------------------------------------------------------------
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import gobject
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import gtk
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from pango import UNDERLINE_SINGLE
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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 gen.lib import StyledTextTagType
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from gui.widgets.styledtextbuffer import (StyledTextBuffer, ALLOWED_STYLES,
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MATCH_START, MATCH_END,
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MATCH_FLAVOR, MATCH_STRING)
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from gui.widgets.valueaction import ValueAction
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from gui.widgets.toolcomboentry import ToolComboEntry
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from gui.widgets.springseparator import SpringSeparatorAction
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from Spell import Spell
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from GrampsDisplay import url as display_url
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#-------------------------------------------------------------------------
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#
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# Constants
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#
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#-------------------------------------------------------------------------
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HAND_CURSOR = gtk.gdk.Cursor(gtk.gdk.HAND2)
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REGULAR_CURSOR = gtk.gdk.Cursor(gtk.gdk.XTERM)
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FORMAT_TOOLBAR = '''
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<ui>
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<toolbar name="ToolBar">
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<toolitem action="%d"/>
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<toolitem action="%d"/>
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<toolitem action="%d"/>
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<toolitem action="%d"/>
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<toolitem action="%d"/>
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<toolitem action="%d"/>
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<toolitem action="%d"/>
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<toolitem action="spring"/>
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<toolitem action="clear"/>
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</toolbar>
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</ui>
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''' % (StyledTextTagType.ITALIC,
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StyledTextTagType.BOLD,
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StyledTextTagType.UNDERLINE,
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StyledTextTagType.FONTFACE,
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StyledTextTagType.FONTSIZE,
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StyledTextTagType.FONTCOLOR,
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StyledTextTagType.HIGHLIGHT,
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)
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FONT_SIZES = [8, 9, 10, 11, 12, 13, 14, 16, 18, 20, 22,
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24, 26, 28, 32, 36, 40, 48, 56, 64, 72]
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USERCHARS = "-A-Za-z0-9"
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PASSCHARS = "-A-Za-z0-9,?;.:/!%$^*&~\"#'"
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HOSTCHARS = "-A-Za-z0-9"
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PATHCHARS = "-A-Za-z0-9_$.+!*(),;:@&=?/~#%"
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#SCHEME = "(news:|telnet:|nntp:|file:/|https?:|ftps?:|webcal:)"
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SCHEME = "(file:/|https?:|ftps?:|webcal:)"
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USER = "[" + USERCHARS + "]+(:[" + PASSCHARS + "]+)?"
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URLPATH = "/[" + PATHCHARS + "]*[^]'.}>) \t\r\n,\\\"]"
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(GENURL, HTTP, MAIL) = range(3)
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#-------------------------------------------------------------------------
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#
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# StyledTextEditor
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#
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#-------------------------------------------------------------------------
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class StyledTextEditor(gtk.TextView):
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"""StyledTextEditor is an enhanced gtk.TextView to edit L{StyledText}.
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StyledTextEditor is a gui object for L{StyledTextBuffer}. It offers
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L{set_text} and L{get_text} convenience methods to set and get the
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buffer's text.
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StyledTextEditor provides a formatting toolbar, which can be retrieved
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by the L{get_toolbar} method.
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StyledTextEdit defines a new signal: 'match-changed', which is raised
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whenever the mouse cursor reaches or leaves a matched string in the text.
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The feature uses the regexp pattern mathing mechanism of
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L{StyledTextBuffer}.
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The signal's default handler highlights the URL strings. URL's can be
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followed from the editor's popup menu or by pressing the <CTRL>Left
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mouse button.
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@ivar last_match: previously matched string, used for generating the
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'match-changed' signal.
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@type last_match: tuple or None
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@ivar match: currently matched string, used for generating the
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'match-changed' signal.
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@type match: tuple or None
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@ivar show_unicode: stores the user's gtk.settings['gtk-show-unicode-menu']
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value.
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@type show_unicode: bool
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@ivar spellcheck: spell checker object created for the editor instance.
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@type spellcheck: L{Spell}
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@ivar textbuffer: text buffer assigned to the edit instance.
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@type textbuffer: L{StyledTextBuffer}
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@ivar toolbar: toolbar to be used for text formatting.
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@type toolbar: gtk.Toolbar
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@ivar url_match: stores the matched URL and other mathing parameters.
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@type url_match: tuple or None
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"""
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__gtype_name__ = 'StyledTextEditor'
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__gsignals__ = {
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'match-changed': (gobject.SIGNAL_RUN_FIRST,
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gobject.TYPE_NONE, #return value
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(gobject.TYPE_PYOBJECT,)), # arguments
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}
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def __init__(self):
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"""Setup initial instance variable values."""
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self.textbuffer = StyledTextBuffer()
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self.textbuffer.connect('style-changed', self._on_buffer_style_changed)
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gtk.TextView.__init__(self, self.textbuffer)
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self.match = None
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self.last_match = None
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self._init_url_match()
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self.url_match = None
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self.toolbar = self._create_toolbar()
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self.spellcheck = Spell(self)
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self._internal_style_change = False
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self._connect_signals()
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# we want to disable the unicode menu in the popup
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settings = gtk.settings_get_default()
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self.show_unicode = settings.get_property('gtk-show-unicode-menu')
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settings.set_property('gtk-show-unicode-menu', False)
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# variable to not copy to clipboard on double/triple click
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self.selclick = False
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# virtual methods
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def do_match_changed(self, match):
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"""Default signal handler.
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URL highlighting.
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@param match: the new match parameters
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@type match: tuple or None
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@attention: Do not override the handler, but connect to the signal.
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"""
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window = self.get_window(gtk.TEXT_WINDOW_TEXT)
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start, end = self.textbuffer.get_bounds()
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self.textbuffer.remove_tag_by_name('hyperlink', start, end)
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if match and (match[MATCH_FLAVOR] in (GENURL, HTTP, MAIL)):
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start_offset = match[MATCH_START]
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end_offset = match[MATCH_END]
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start = self.textbuffer.get_iter_at_offset(start_offset)
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end = self.textbuffer.get_iter_at_offset(end_offset)
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self.textbuffer.apply_tag_by_name('hyperlink', start, end)
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window.set_cursor(HAND_CURSOR)
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self.url_match = match
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else:
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window.set_cursor(REGULAR_CURSOR)
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self.url_match = None
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def on_unrealize(self, widget):
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"""Signal handler.
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Set the default Gtk settings back before leaving.
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"""
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settings = gtk.settings_get_default()
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settings.set_property('gtk-show-unicode-menu', self.show_unicode)
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def on_key_press_event(self, widget, event):
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"""Signal handler.
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Handle formatting shortcuts.
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"""
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for accel, accel_name in self.action_accels.iteritems():
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key, mod = gtk.accelerator_parse(accel)
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if (event.keyval, event.state) == (key, mod):
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action_name = accel_name
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action = self.action_group.get_action(action_name)
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action.activate()
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return True
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return False
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def on_insert_at_cursor(self, widget, string):
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"""Signal handler. for debugging only."""
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_LOG.debug("Textview insert '%s'" % string)
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def on_delete_from_cursor(self, widget, mode, count):
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"""Signal handler. for debugging only."""
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_LOG.debug("Textview delete type %d count %d" % (mode, count))
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def on_paste_clipboard(self, widget):
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"""Signal handler. for debugging only."""
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_LOG.debug("Textview paste clipboard")
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def on_motion_notify_event(self, widget, event):
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"""Signal handler.
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As the mouse cursor moves the handler checks if there's a new
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regexp match at the new location. If match changes the
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'match-changed' signal is raised.
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"""
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x, y = self.window_to_buffer_coords(gtk.TEXT_WINDOW_WIDGET,
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int(event.x), int(event.y))
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iter_at_location = self.get_iter_at_location(x, y)
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self.match = self.textbuffer.match_check(iter_at_location.get_offset())
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if self.match != self.last_match:
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self.emit('match-changed', self.match)
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self.last_match = self.match
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self.window.get_pointer()
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return False
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def on_button_release_event(self, widget, event):
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"""
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Copy selection to clipboard for left click if selection given
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"""
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if (event.type == gtk.gdk.BUTTON_RELEASE and self.selclick and
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event.button == 1):
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bounds = self.textbuffer.get_selection_bounds()
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if bounds:
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clip = gtk.Clipboard(selection="PRIMARY")
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clip.set_text(str(self.textbuffer.get_text(bounds[0],
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bounds[1])))
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return False
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def on_button_press_event(self, widget, event):
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"""Signal handler.
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Handles the <CTRL> + Left click over a URL match.
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"""
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self.selclick=False
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if ((event.type == gtk.gdk.BUTTON_PRESS) and
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(event.button == 1) and
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(event.state and gtk.gdk.CONTROL_MASK) and
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(self.url_match)):
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flavor = self.url_match[MATCH_FLAVOR]
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url = self.url_match[MATCH_STRING]
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self._open_url_cb(None, url, flavor)
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elif (event.type == gtk.gdk.BUTTON_PRESS and event.button == 1) :
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#on release we will copy selected data to clipboard
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self.selclick = True
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#propagate click
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return False
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def on_populate_popup(self, widget, menu):
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"""Signal handler.
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Insert extra menuitems:
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1. Insert language selector submenu for spell checking.
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2. Insert extra menus depending on ULR match result.
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"""
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# spell checker submenu
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spell_menu = gtk.MenuItem(_('Spell'))
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spell_menu.set_submenu(self._create_spell_menu())
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spell_menu.show_all()
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menu.prepend(spell_menu)
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# url menu items
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if self.url_match:
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flavor = self.url_match[MATCH_FLAVOR]
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url = self.url_match[MATCH_STRING]
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if flavor == MAIL:
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open_menu = gtk.MenuItem(_('_Send Mail To...'))
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copy_menu = gtk.MenuItem(_('Copy _E-mail Address'))
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else:
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open_menu = gtk.MenuItem(_('_Open Link'))
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copy_menu = gtk.MenuItem(_('Copy _Link Address'))
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copy_menu.connect('activate', self._copy_url_cb, url, flavor)
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copy_menu.show()
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menu.prepend(copy_menu)
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open_menu.connect('activate', self._open_url_cb, url, flavor)
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open_menu.show()
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menu.prepend(open_menu)
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# private methods
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def _connect_signals(self):
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"""Connect to several signals of the super class gtk.TextView."""
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self.connect('key-press-event', self.on_key_press_event)
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self.connect('insert-at-cursor', self.on_insert_at_cursor)
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self.connect('delete-from-cursor', self.on_delete_from_cursor)
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self.connect('paste-clipboard', self.on_paste_clipboard)
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self.connect('motion-notify-event', self.on_motion_notify_event)
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self.connect('button-press-event', self.on_button_press_event)
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self.connect('button-release-event', self.on_button_release_event)
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self.connect('populate-popup', self.on_populate_popup)
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self.connect('unrealize', self.on_unrealize)
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def _create_toolbar(self):
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"""Create a formatting toolbar.
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@returns: toolbar containing text formatting toolitems.
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@returntype: gtk.Toolbar
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"""
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# define the actions...
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# ...first the toggle actions, which have a ToggleToolButton as proxy
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format_toggle_actions = [
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(str(StyledTextTagType.ITALIC), gtk.STOCK_ITALIC, None, None,
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_('Italic'), self._on_toggle_action_activate),
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(str(StyledTextTagType.BOLD), gtk.STOCK_BOLD, None, None,
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_('Bold'), self._on_toggle_action_activate),
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(str(StyledTextTagType.UNDERLINE), gtk.STOCK_UNDERLINE, None, None,
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_('Underline'), self._on_toggle_action_activate),
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]
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self.toggle_actions = [action[0] for action in format_toggle_actions]
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# ...then the normal actions, which have a ToolButton as proxy
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format_actions = [
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(str(StyledTextTagType.FONTCOLOR), 'gramps-font-color', None, None,
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_('Font Color'), self._on_action_activate),
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(str(StyledTextTagType.HIGHLIGHT), 'gramps-font-bgcolor', None, None,
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_('Background Color'), self._on_action_activate),
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('clear', gtk.STOCK_CLEAR, None, None,
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_('Clear Markup'), self._format_clear_cb),
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]
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# ...last the custom actions, which have custom proxies
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items = [f.get_name() for f in self.get_pango_context().list_families()]
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items.sort()
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default = StyledTextTagType.STYLE_DEFAULT[StyledTextTagType.FONTFACE]
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fontface_action = ValueAction(str(StyledTextTagType.FONTFACE),
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_("Font family"),
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default,
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ToolComboEntry,
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items,
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False, #editable
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True, #shortlist
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None) # validator
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fontface_action.connect('changed', self._on_valueaction_changed)
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items = FONT_SIZES
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default = StyledTextTagType.STYLE_DEFAULT[StyledTextTagType.FONTSIZE]
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fontsize_action = ValueAction(str(StyledTextTagType.FONTSIZE),
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_("Font size"),
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default,
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ToolComboEntry,
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items,
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True, #editable
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False, #shortlist
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is_valid_fontsize) #validator
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fontsize_action.connect('changed', self._on_valueaction_changed)
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spring = SpringSeparatorAction("spring", "", "", None)
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# action accelerators
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self.action_accels = {
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'<Control>i': str(StyledTextTagType.ITALIC),
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'<Control>b': str(StyledTextTagType.BOLD),
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'<Control>u': str(StyledTextTagType.UNDERLINE),
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}
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# create the action group and insert all the actions
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self.action_group = gtk.ActionGroup('Format')
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self.action_group.add_toggle_actions(format_toggle_actions)
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self.action_group.add_actions(format_actions)
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self.action_group.add_action(fontface_action)
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self.action_group.add_action(fontsize_action)
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self.action_group.add_action(spring)
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# define the toolbar and create the proxies via ensure_update()
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uimanager = gtk.UIManager()
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uimanager.insert_action_group(self.action_group, 0)
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uimanager.add_ui_from_string(FORMAT_TOOLBAR)
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uimanager.ensure_update()
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# get the toolbar and set it's style
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toolbar = uimanager.get_widget('/ToolBar')
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toolbar.set_style(gtk.TOOLBAR_ICONS)
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return toolbar
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def _init_url_match(self):
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"""Setup regexp matching for URL match."""
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self.textbuffer.create_tag('hyperlink',
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underline=UNDERLINE_SINGLE,
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foreground='blue')
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self.textbuffer.match_add("(www|ftp)[" + HOSTCHARS + "]*\\.[" +
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HOSTCHARS + ".]+" + "(:[0-9]+)?(" +
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URLPATH + ")?/?", HTTP)
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self.textbuffer.match_add("(mailto:)?[a-z0-9][a-z0-9.-]*@[a-z0-9]"
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"[a-z0-9-]*(\\.[a-z0-9][a-z0-9-]*)+", MAIL)
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self.textbuffer.match_add(SCHEME + "//(" + USER + "@)?[" +
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HOSTCHARS + ".]+" + "(:[0-9]+)?(" +
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URLPATH + ")?/?", GENURL)
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def _create_spell_menu(self):
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"""Create a menu with all the installed languages.
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It is called each time the popup menu is opened. Each language
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forms a radio menu item, and the selected language is set as active.
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@returns: menu containing all the installed languages.
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@returntype: gtk.Menu
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"""
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active_language = self.spellcheck.get_active_language()
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menu = gtk.Menu()
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group = None
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for lang in self.spellcheck.get_all_languages():
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menuitem = gtk.RadioMenuItem(group, lang)
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menuitem.set_active(lang == active_language)
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menuitem.connect('activate', self._spell_change_cb, lang)
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menu.append(menuitem)
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if group is None:
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group = menuitem
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return menu
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# Callback functions
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def _on_toggle_action_activate(self, action):
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"""Toggle a style.
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Toggle styles are e.g. 'bold', 'italic', 'underline'.
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"""
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if self._internal_style_change:
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return
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style = int(action.get_name())
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value = action.get_active()
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_LOG.debug("applying style '%d' with value '%s'" % (style, str(value)))
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self.textbuffer.apply_style(style, value)
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def _on_action_activate(self, action):
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"""Apply a format set from a gtk.Action type of action."""
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style = int(action.get_name())
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current_value = self.textbuffer.get_style_at_cursor(style)
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if style == StyledTextTagType.FONTCOLOR:
|
|
color_selection = gtk.ColorSelectionDialog(_("Select font color"))
|
|
elif style == StyledTextTagType.HIGHLIGHT:
|
|
color_selection = gtk.ColorSelectionDialog(_("Select "
|
|
"background color"))
|
|
else:
|
|
_LOG.debug("unknown style: '%d'" % style)
|
|
return
|
|
|
|
if current_value:
|
|
color_selection.colorsel.set_current_color(
|
|
hex_to_color(current_value))
|
|
|
|
response = color_selection.run()
|
|
color = color_selection.colorsel.get_current_color()
|
|
value = color_to_hex(color)
|
|
color_selection.destroy()
|
|
|
|
if response == gtk.RESPONSE_OK:
|
|
_LOG.debug("applying style '%d' with value '%s'" %
|
|
(style, str(value)))
|
|
self.textbuffer.apply_style(style, value)
|
|
|
|
def _on_valueaction_changed(self, action):
|
|
"""Apply a format set by a ValueAction type of action."""
|
|
if self._internal_style_change:
|
|
return
|
|
|
|
style = int(action.get_name())
|
|
|
|
value = action.get_value()
|
|
try:
|
|
value = StyledTextTagType.STYLE_TYPE[style](value)
|
|
_LOG.debug("applying style '%d' with value '%s'" %
|
|
(style, str(value)))
|
|
self.textbuffer.apply_style(style, value)
|
|
except ValueError:
|
|
_LOG.debug("unable to convert '%s' to '%s'" %
|
|
(text, StyledTextTagType.STYLE_TYPE[style]))
|
|
|
|
def _format_clear_cb(self, action):
|
|
"""Remove all formats from the selection.
|
|
|
|
Remove only our own tags without touching other ones (e.g. gtk.Spell),
|
|
thus remove_all_tags() can not be used.
|
|
|
|
"""
|
|
for style in ALLOWED_STYLES:
|
|
self.textbuffer.remove_style(style)
|
|
|
|
def _on_buffer_style_changed(self, buffer, changed_styles):
|
|
"""Synchronize actions as the format changes at the buffer's cursor."""
|
|
for style, style_value in changed_styles.iteritems():
|
|
if str(style) in self.toggle_actions:
|
|
action = self.action_group.get_action(str(style))
|
|
self._internal_style_change = True
|
|
action.set_active(style_value)
|
|
self._internal_style_change = False
|
|
|
|
if ((style == StyledTextTagType.FONTFACE) or
|
|
(style == StyledTextTagType.FONTSIZE)):
|
|
action = self.action_group.get_action(str(style))
|
|
self._internal_style_change = True
|
|
action.set_value(style_value)
|
|
self._internal_style_change = False
|
|
|
|
def _spell_change_cb(self, menuitem, language):
|
|
"""Set spell checker language according to user selection."""
|
|
self.spellcheck.set_active_language(language)
|
|
|
|
def _open_url_cb(self, menuitem, url, flavor):
|
|
"""Open the URL in a browser."""
|
|
if not url:
|
|
return
|
|
|
|
if flavor == HTTP:
|
|
url = 'http:' + url
|
|
elif flavor == MAIL:
|
|
if not url.startswith('mailto:'):
|
|
url = 'mailto:' + url
|
|
elif flavor == GENURL:
|
|
pass
|
|
else:
|
|
return
|
|
|
|
display_url(url)
|
|
|
|
def _copy_url_cb(self, menuitem, url, flavor):
|
|
"""Copy url to both useful selections."""
|
|
clipboard = gtk.Clipboard(selection="CLIPBOARD")
|
|
clipboard.set_text(url)
|
|
|
|
clipboard = gtk.Clipboard(selection="PRIMARY")
|
|
clipboard.set_text(url)
|
|
|
|
# public methods
|
|
|
|
def set_text(self, text):
|
|
"""Set the text of the text buffer of the editor.
|
|
|
|
@param text: formatted text to edit in the view.
|
|
@type text: L{StyledText}
|
|
|
|
"""
|
|
self.textbuffer.set_text(text)
|
|
self.textbuffer.place_cursor(self.textbuffer.get_start_iter())
|
|
|
|
def get_text(self):
|
|
"""Get the text of the text buffer of the editor.
|
|
|
|
@returns: the formatted text from the editor.
|
|
@returntype: L{StyledText}
|
|
|
|
"""
|
|
return self.textbuffer.get_text()
|
|
|
|
def get_toolbar(self):
|
|
"""Get the formatting toolbar of the editor.
|
|
|
|
@returns: toolbar widget to use as formatting GUI.
|
|
@returntype: gtk.Toolbar
|
|
|
|
"""
|
|
return self.toolbar
|
|
|
|
#-------------------------------------------------------------------------
|
|
#
|
|
# Module functions
|
|
#
|
|
#-------------------------------------------------------------------------
|
|
def color_to_hex(color):
|
|
"""Convert gtk.gdk.Color to hex string."""
|
|
hexstring = ""
|
|
for col in 'red', 'green', 'blue':
|
|
hexfrag = hex(getattr(color, col) / (16 * 16)).split("x")[1]
|
|
if len(hexfrag) < 2:
|
|
hexfrag = "0" + hexfrag
|
|
hexstring += hexfrag
|
|
return '#' + hexstring
|
|
|
|
def hex_to_color(hex):
|
|
"""Convert hex string to gtk.gdk.Color."""
|
|
color = gtk.gdk.color_parse(hex)
|
|
return color
|
|
|
|
def is_valid_fontsize(size):
|
|
"""Validator function for font size selector widget."""
|
|
return (size > 0) and (size < 73)
|