#!/usr/bin/env python
# -*- Mode: Python; py-indent-offset: 4 -*-
# vim: tabstop=4 shiftwidth=4 expandtab
#
# Copyright (C) 2010 Red Hat, Inc., John (J5) Palmieri <johnp@redhat.com>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
# USA

title = "Application main window"
description = """
Demonstrates a typical application window with menubar, toolbar, statusbar.
"""

import os

from gi.repository import GdkPixbuf, Gtk


infobar = None
window = None
messagelabel = None
_demoapp = None


def widget_destroy(widget, button):
    widget.destroy()


def activate_action(action, user_data=None):
    global window

    name = action.get_name()
    _type = type(action)
    if name == 'DarkTheme':
        value = action.get_active()
        settings = Gtk.Settings.get_default()
        settings.set_property('gtk-application-prefer-dark-theme', value)
        return

    dialog = Gtk.MessageDialog(message_type=Gtk.MessageType.INFO,
                               buttons=Gtk.ButtonsType.CLOSE,
                               text='You activated action: "%s" of type %s' % (name, _type))

    # FIXME: this should be done in the constructor
    dialog.set_transient_for(window)
    dialog.connect('response', widget_destroy)
    dialog.show()


def activate_radio_action(action, current, user_data=None):
    global infobar
    global messagelabel

    name = current.get_name()
    _type = type(current)
    active = current.get_active()
    value = current.get_current_value()
    if active:
        text = 'You activated radio action: "%s" of type %s.\n Current value: %d' % (name, _type, value)
        messagelabel.set_text(text)
        infobar.set_message_type(Gtk.MessageType(value))
        infobar.show()


def update_statusbar(buffer, statusbar):
    statusbar.pop(0)
    count = buffer.get_char_count()

    iter = buffer.get_iter_at_mark(buffer.get_insert())
    row = iter.get_line()
    col = iter.get_line_offset()
    msg = 'Cursor at row %d column %d - %d chars in document' % (row, col, count)

    statusbar.push(0, msg)


def mark_set_callback(buffer, new_location, mark, data):
    update_statusbar(buffer, data)


def about_cb(widget, user_data=None):
    global window

    authors = ['John (J5) Palmieri',
               'Tomeu Vizoso',
               'and many more...']

    documentors = ['David Malcolm',
                   'Zack Goldberg',
                   'and many more...']

    license = """
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.

This library 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
Library General Public License for more details.

You should have received a copy of the GNU Library General Public
License along with the Gnome Library; see the file COPYING.LIB.  If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
"""
    dirname = os.path.abspath(os.path.dirname(__file__))
    filename = os.path.join(dirname, 'data', 'gtk-logo-rgb.gif')
    pixbuf = GdkPixbuf.Pixbuf.new_from_file(filename)
    transparent = pixbuf.add_alpha(True, 0xff, 0xff, 0xff)

    about = Gtk.AboutDialog(parent=window,
                            program_name='GTK+ Code Demos',
                            version='0.1',
                            copyright='(C) 2010 The PyGI Team',
                            license=license,
                            website='http://live.gnome.org/PyGI',
                            comments='Program to demonstrate PyGI functions.',
                            authors=authors,
                            documenters=documentors,
                            logo=transparent,
                            title='About GTK+ Code Demos')

    about.connect('response', widget_destroy)
    about.show()


action_entries = (
    ("FileMenu", None, "_File"),                # name, stock id, label
    ("OpenMenu", None, "_Open"),                # name, stock id, label
    ("PreferencesMenu", None, "_Preferences"),  # name, stock id, label
    ("ColorMenu", None, "_Color"),              # name, stock id, label
    ("ShapeMenu", None, "_Shape"),              # name, stock id, label
    ("HelpMenu", None, "_Help"),                # name, stock id, label
    ("New", Gtk.STOCK_NEW,                      # name, stock id
     "_New", "<control>N",                      # label, accelerator
     "Create a new file",                       # tooltip
     activate_action),
    ("File1", None,                             # name, stock id
     "File1", None,                             # label, accelerator
     "Open first file",                         # tooltip
     activate_action),
    ("Save", Gtk.STOCK_SAVE,                    # name, stock id
     "_Save", "<control>S",                     # label, accelerator
     "Save current file",                       # tooltip
     activate_action),
    ("SaveAs", Gtk.STOCK_SAVE,                  # name, stock id
     "Save _As...", None,                       # label, accelerator
     "Save to a file",                          # tooltip
     activate_action),
    ("Quit", Gtk.STOCK_QUIT,                    # name, stock id
     "_Quit", "<control>Q",                     # label, accelerator
     "Quit",                                    # tooltip
     activate_action),
    ("About", None,                             # name, stock id
     "_About", "<control>A",                    # label, accelerator
     "About",                                   # tooltip
     about_cb),
    ("Logo", "demo-gtk-logo",                   # name, stock id
     None, None,                                # label, accelerator
     "GTK+",                                    # tooltip
     activate_action),
)

toggle_action_entries = (
    ("Bold", Gtk.STOCK_BOLD,                    # name, stock id
     "_Bold", "<control>B",                     # label, accelerator
     "Bold",                                    # tooltip
     activate_action,
     True),                                     # is_active
    ("DarkTheme", None,                         # name, stock id
     "_Prefer Dark Theme", None,                # label, accelerator
     "Prefer Dark Theme",                       # tooltip
     activate_action,
     False),                                    # is_active
)

(COLOR_RED,
 COLOR_GREEN,
 COLOR_BLUE) = range(3)

color_action_entries = (
    ("Red", None,                               # name, stock id
     "_Red", "<control>R",                      # label, accelerator
     "Blood", COLOR_RED),                       # tooltip, value
    ("Green", None,                             # name, stock id
     "_Green", "<control>G",                    # label, accelerator
     "Grass", COLOR_GREEN),                     # tooltip, value
    ("Blue", None,                              # name, stock id
     "_Blue", "<control>B",                     # label, accelerator
     "Sky", COLOR_BLUE),                        # tooltip, value
)

(SHAPE_SQUARE,
 SHAPE_RECTANGLE,
 SHAPE_OVAL) = range(3)

shape_action_entries = (
    ("Square", None,                            # name, stock id
     "_Square", "<control>S",                   # label, accelerator
     "Square", SHAPE_SQUARE),                   # tooltip, value
    ("Rectangle", None,                         # name, stock id
     "_Rectangle", "<control>R",                # label, accelerator
     "Rectangle", SHAPE_RECTANGLE),             # tooltip, value
    ("Oval", None,                              # name, stock id
     "_Oval", "<control>O",                     # label, accelerator
     "Egg", SHAPE_OVAL),                        # tooltip, value
)

ui_info = """
<ui>
  <menubar name='MenuBar'>
    <menu action='FileMenu'>
      <menuitem action='New'/>
      <menuitem action='Open'/>
      <menuitem action='Save'/>
      <menuitem action='SaveAs'/>
      <separator/>
      <menuitem action='Quit'/>
    </menu>
    <menu action='PreferencesMenu'>
      <menuitem action='DarkTheme'/>
      <menu action='ColorMenu'>
    <menuitem action='Red'/>
    <menuitem action='Green'/>
    <menuitem action='Blue'/>
      </menu>
      <menu action='ShapeMenu'>
        <menuitem action='Square'/>
        <menuitem action='Rectangle'/>
        <menuitem action='Oval'/>
      </menu>
      <menuitem action='Bold'/>
    </menu>
    <menu action='HelpMenu'>
      <menuitem action='About'/>
    </menu>
  </menubar>
  <toolbar name='ToolBar'>
    <toolitem action='Open'>
      <menu action='OpenMenu'>
        <menuitem action='File1'/>
      </menu>
    </toolitem>
    <toolitem action='Quit'/>
    <separator action='Sep1'/>
    <toolitem action='Logo'/>
  </toolbar>
</ui>
"""


def _quit(*args):
    Gtk.main_quit()


def register_stock_icons():
    """
    This function registers our custom toolbar icons, so they can be themed.
    It's totally optional to do this, you could just manually insert icons
    and have them not be themeable, especially if you never expect people
    to theme your app.
    """
    '''
    item = Gtk.StockItem()
    item.stock_id = 'demo-gtk-logo'
    item.label = '_GTK!'
    item.modifier = 0
    item.keyval = 0
    item.translation_domain = None

    Gtk.stock_add(item, 1)
    '''
    global _demoapp

    factory = Gtk.IconFactory()
    factory.add_default()

    if _demoapp is None:
        filename = os.path.join('data', 'gtk-logo-rgb.gif')
    else:
        filename = _demoapp.find_file('gtk-logo-rgb.gif')

    pixbuf = GdkPixbuf.Pixbuf.new_from_file(filename)
    transparent = pixbuf.add_alpha(True, 0xff, 0xff, 0xff)
    icon_set = Gtk.IconSet.new_from_pixbuf(transparent)

    factory.add('demo-gtk-logo', icon_set)


class ToolMenuAction(Gtk.Action):
    __gtype_name__ = "GtkToolMenuAction"

    def do_create_tool_item(self):
        return Gtk.MenuToolButton()


def main(demoapp=None):
    global infobar
    global window
    global messagelabel
    global _demoapp

    _demoapp = demoapp

    register_stock_icons()

    window = Gtk.Window()
    window.set_title('Application Window')
    window.set_icon_name('gtk-open')
    window.connect_after('destroy', _quit)
    table = Gtk.Table(n_rows=1,
                      n_columns=5,
                      homogeneous=False)
    window.add(table)

    action_group = Gtk.ActionGroup(name='AppWindowActions')
    open_action = ToolMenuAction(name='Open',
                                 stock_id=Gtk.STOCK_OPEN,
                                 label='_Open',
                                 tooltip='Open a file')

    action_group.add_action(open_action)
    action_group.add_actions(action_entries)
    action_group.add_toggle_actions(toggle_action_entries)
    action_group.add_radio_actions(color_action_entries,
                                   COLOR_RED,
                                   activate_radio_action)
    action_group.add_radio_actions(shape_action_entries,
                                   SHAPE_SQUARE,
                                   activate_radio_action)

    merge = Gtk.UIManager()
    merge.insert_action_group(action_group, 0)
    window.add_accel_group(merge.get_accel_group())

    merge.add_ui_from_string(ui_info)

    bar = merge.get_widget('/MenuBar')
    bar.show()
    table.attach(bar, 0, 1, 0, 1,
                 Gtk.AttachOptions.EXPAND | Gtk.AttachOptions.FILL,
                 0, 0, 0)

    bar = merge.get_widget('/ToolBar')
    bar.show()
    table.attach(bar, 0, 1, 1, 2,
                 Gtk.AttachOptions.EXPAND | Gtk.AttachOptions.FILL,
                 0, 0, 0)

    infobar = Gtk.InfoBar()
    infobar.set_no_show_all(True)
    messagelabel = Gtk.Label()
    messagelabel.show()
    infobar.get_content_area().pack_start(messagelabel, True, True, 0)
    infobar.add_button(Gtk.STOCK_OK, Gtk.ResponseType.OK)
    infobar.connect('response', lambda a, b: Gtk.Widget.hide(a))

    table.attach(infobar, 0, 1, 2, 3,
                 Gtk.AttachOptions.EXPAND | Gtk.AttachOptions.FILL,
                 0, 0, 0)

    sw = Gtk.ScrolledWindow(hadjustment=None,
                            vadjustment=None)
    sw.set_shadow_type(Gtk.ShadowType.IN)
    table.attach(sw, 0, 1, 3, 4,
                 Gtk.AttachOptions.EXPAND | Gtk.AttachOptions.FILL,
                 Gtk.AttachOptions.EXPAND | Gtk.AttachOptions.FILL,
                 0, 0)

    contents = Gtk.TextView()
    contents.grab_focus()
    sw.add(contents)

    # Create statusbar
    statusbar = Gtk.Statusbar()
    table.attach(statusbar, 0, 1, 4, 5,
                 Gtk.AttachOptions.EXPAND | Gtk.AttachOptions.FILL,
                 0, 0, 0)

    # show text widget info in the statusbar
    buffer = contents.get_buffer()
    buffer.connect('changed', update_statusbar, statusbar)
    buffer.connect('mark_set', mark_set_callback, statusbar)

    update_statusbar(buffer, statusbar)

    window.set_default_size(200, 200)
    window.show_all()
    Gtk.main()


if __name__ == '__main__':
    main()
