# Copyright (C) 2007, Red Hat, Inc.
#
# 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 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., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.

"""
STABLE.
"""

import gtk
import gobject

from sugar.graphics import style

class ToolboxContainer(gtk.Container):
    __gtype_name__ = 'SugarToolboxContainer'

    def __init__(self, **kwargs):
        gobject.GObject.__init__(self, **kwargs)

        super(ToolboxContainer, self).__init__()

    def do_realize(self):
        self.set_flags(self.flags() | gtk.REALIZED)

        self.window = gtk.gdk.Window(
                self.get_parent_window(),
                width=self.allocation.width,
                height=self.allocation.height,
                window_type=gtk.gdk.WINDOW_CHILD,
                wclass=gtk.gdk.INPUT_OUTPUT,
                event_mask=self.get_events() | gtk.gdk.EXPOSURE_MASK
                        | gtk.gdk.BUTTON1_MOTION_MASK
                        | gtk.gdk.BUTTON_PRESS_MASK
                        | gtk.gdk.POINTER_MOTION_MASK
                        | gtk.gdk.POINTER_MOTION_HINT_MASK)
        self.window.set_user_data(self)

        self.style.attach(self.window)
        self.style.set_background(self.window, gtk.STATE_NORMAL)
        self.window.move_resize(*self.allocation)
        self.gc = self.style.fg_gc[gtk.STATE_NORMAL]

        self.modify_bg(gtk.STATE_NORMAL,
                       style.COLOR_PANEL_GREY.get_gdk_color())

    def do_size_request(self, requisition):
        requisition.height = style.TOOLBOX_SEPARATOR_HEIGHT
        # TODO: calculate our mininum width size
        requisition.width = 200

    def do_size_allocate(self, allocation):
        if self.flags() & gtk.REALIZED:
            self.window.move_resize(*allocation)

        width, height = allocation.width, allocation.height

    def do_remove(self, child):
        pass


class Toolbox(gtk.VBox):

    __gtype_name__ = 'SugarToolbox'

    __gsignals__ = {
        'current-toolbar-changed': (gobject.SIGNAL_RUN_FIRST,
            gobject.TYPE_NONE, ([int])),
    }

    def __init__(self):
        gtk.VBox.__init__(self)

        self._notebook = gtk.Notebook()
        self._notebook.set_tab_pos(gtk.POS_BOTTOM)
        self._notebook.set_show_border(False)
        self._notebook.set_show_tabs(False)
        self._notebook.props.tab_vborder = style.TOOLBOX_TAB_VBORDER
        self._notebook.props.tab_hborder = style.TOOLBOX_TAB_HBORDER
        self.pack_start(self._notebook)
        self._notebook.show()

        self._separator = ToolboxContainer()
        self.pack_start(self._separator, False)

        self._notebook.connect('notify::page', self._notify_page_cb)

    def _notify_page_cb(self, notebook, pspec):
        self.emit('current-toolbar-changed', notebook.props.page)

    def add_toolbar(self, name, toolbar):
        label = gtk.Label(name)
        width, height_ = label.size_request()
        label.set_size_request(max(width, style.TOOLBOX_TAB_LABEL_WIDTH), -1)
        label.set_alignment(0.0, 0.5)

        event_box = gtk.EventBox()

        alignment = gtk.Alignment(0.0, 0.0, 1.0, 1.0)
        alignment.set_padding(0, 0, style.TOOLBOX_HORIZONTAL_PADDING,
                              style.TOOLBOX_HORIZONTAL_PADDING)

        alignment.add(toolbar)
        event_box.add(alignment)
        alignment.show()
        event_box.show()

        self._notebook.append_page(event_box, label)

        if self._notebook.get_n_pages() > 1:
            self._notebook.set_show_tabs(True)
            self._separator.show()

    def remove_toolbar(self, index):
        self._notebook.remove_page(index)

        if self._notebook.get_n_pages() < 2:
            self._notebook.set_show_tabs(False)
            self._separator.hide()

    def set_current_toolbar(self, index):
        self._notebook.set_current_page(index)

    def get_current_toolbar(self):
        return self._notebook.get_current_page()

    current_toolbar = property(get_current_toolbar, set_current_toolbar)