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path: root/addons/messagebuttonnext.py
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# Copyright (C) 2009, Tutorius.org
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

import gtk, gtk.gdk

from sugar.tutorius.filters import EventFilter
from sugar.tutorius.properties import TStringProperty, TArrayProperty
from sugar.tutorius import overlayer

from sugar import profile

xo_line_color_profile = profile.get_color().get_stroke_color()
xo_fill_color_profile = profile.get_color().get_fill_color()

class MessageButtonNext(EventFilter):
    """
    MessageButtonNext
    """
    # set message
    message = TStringProperty("Message")

    # create the position as an array of fixed-size 2
    position = TArrayProperty((0,0), 2, 2)

    # set padding
    padding = 40

    def __init__(self, message=None, position=None, center_pos=False):
        """Constructor.

        @param message message to display
        @param position message position
        """
        super(MessageButtonNext,self).__init__()

        if position:
            self.position = position
        else:
            # TODO: to be removed when creator supports editing properties on events
            self.position = (300, 200)

        if message:
            self.message = message

        self.overlay = None
        self.msgnext = None

    def install_handlers(self, callback, **kwargs):
        """install_handlers creates the message button next and shows it"""
        super(MessageButtonNext,self).install_handlers(callback, **kwargs)

        if not "activity" in kwargs:
            raise TypeError("activity argument is Mandatory")
        
        # get activity instance
        self.activity = kwargs["activity"]
  
        # get or inject overlayer
        self.overlay = self.activity._overlayer

        if not self.overlay:
            self.overlay = self.activity._overlayer

        btntext = "NEXT"

        self.msgnext = MsgNext(text=self.message,btntext=btntext)
        self.msgnext._btnnext.connect("clicked", self.btnnext_clicked)

        # add space around minimum need size
        wid_width, wid_height = self.msgnext.size_request()
        self.msgnext.set_size_request(wid_width+MessageButtonNext.padding, wid_height+MessageButtonNext.padding)

        # set position
        x, y = self.position

        self.msgnext.show()
        self.overlay.put(self.msgnext, x, y)        
        self.overlay.queue_draw()
    
    def remove_handlers(self):
        """remove handler removes the message button next"""
        super(MessageButtonNext,self).remove_handlers()

        if self.msgnext:
            self.msgnext.destroy()
            self.msgnext = None

    def btnnext_clicked(self, widget):
        self.do_callback()

__event__ = {
    "name" : "MessageButtonNext",
    "display_name" : "Message button next",
    "icon" : "message-bubble",
    "class" : MessageButtonNext,
    "mandatory_props" : ["message"]
}

class MsgNext(gtk.EventBox):
    """
    Create an EventBox
    """
    def __init__(self, text, btntext):
        """
        Creates an Event Box
        """
        gtk.EventBox.__init__(self)

        self.message = text
        self.btnmessage = btntext

        self.set_visible_window(True)

        # create a vbox
        self.box = gtk.VBox()

        # create a label (set message to display)
        self._label = gtk.Label()
        self._text = "<b>%s</b>" % self.message
        self._label.set_markup(self._text)
        self._label.set_line_wrap(True)

        self._colortext = gtk.gdk.color_parse("white")
        self._label.modify_fg(gtk.STATE_NORMAL, self._colortext)
        self._label.modify_fg(gtk.STATE_PRELIGHT, self._colortext)
        self._label.modify_fg(gtk.STATE_ACTIVE, self._colortext)
        self._label.modify_fg(gtk.STATE_INSENSITIVE, self._colortext)
            
        self._label.show()

        # create a hbox (holding button)
        self._hbox = gtk.HBox()

        # create a button inside hbox
        self._btnnext = gtk.Button(self.btnmessage)
        
        self._colorbtn = gtk.gdk.color_parse(xo_fill_color_profile)

        self._btnnext.modify_bg(gtk.STATE_NORMAL, self._colorbtn)
        self._btnnext.modify_bg(gtk.STATE_PRELIGHT, self._colorbtn)
        self._btnnext.modify_bg(gtk.STATE_ACTIVE, self._colorbtn)
            
        self._btnnext.show()

        self._hbox.pack_end(self._btnnext, expand=False)
            
        self._hbox.show()
            
        self.box.pack_start(self._label, expand=True)
        self.box.pack_start(self._hbox, expand=True)

        self.box.show()
            
        self.add(self.box)

        self._colormsgnext = gtk.gdk.color_parse(xo_fill_color_profile)
        self.modify_bg(gtk.STATE_NORMAL, self._colormsgnext)