# vim: set fileencoding=utf-8 :

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import gi

gi.require_version("Gtk", "3.0")
from gi.repository import Gtk
from radialnet.bestwidgets.boxes import *


class BWTextView(BWScrolledWindow):
    """
    """
    def __init__(self):
        """
        """
        BWScrolledWindow.__init__(self)

        self.__auto_scroll = False

        self.__create_widgets()

    def __create_widgets(self):
        """
        """
        self.__textbuffer = Gtk.TextBuffer()
        self.__textview = Gtk.TextView.new_with_buffer(self.__textbuffer)

        self.add_with_viewport(self.__textview)

    def bw_set_auto_scroll(self, value):
        """
        """
        self.__auto_scroll = value

    def bw_set_editable(self, editable):
        """
        """
        self.__textview.set_editable(False)

    def bw_modify_font(self, font):
        """
        """
        self.__textview.modify_font(font)

    def bw_set_text(self, text):
        """
        """
        self.__textbuffer.set_text(text)

        if self.__auto_scroll:
            self.bw_set_scroll_down()

    def bw_get_text(self):
        """
        """
        return self.__textbuffer.get_text(self.__textbuffer.get_start_iter(),
                                          self.__textbuffer.get_end_iter(),
                                          include_hidden_chars=True)

    def bw_set_scroll_down(self):
        """
        """
        self.get_vadjustment().set_value(self.get_vadjustment().upper)

    def bw_get_textbuffer(self):
        """
        """
        return self.__textbuffer


class BWTextEditor(BWScrolledWindow):
    """
    """
    def __init__(self):
        """
        """
        BWScrolledWindow.__init__(self)
        self.connect('draw', self.__draw)

        self.__auto_scroll = False

        self.__create_widgets()

    def __create_widgets(self):
        """
        """
        self.__hbox = BWHBox(spacing=6)

        self.__textbuffer = Gtk.TextBuffer()
        self.__textview = Gtk.TextView.new_with_buffer(self.__textbuffer)

        self.__linebuffer = Gtk.TextBuffer()
        self.__lineview = Gtk.TextView.new_with_buffer(self.__linebuffer)
        self.__lineview.set_justification(Gtk.Justification.RIGHT)
        self.__lineview.set_editable(False)
        self.__lineview.set_sensitive(False)

        self.__hbox.bw_pack_start_noexpand_nofill(self.__lineview)
        self.__hbox.bw_pack_start_expand_fill(self.__textview)

        self.add_with_viewport(self.__hbox)

    def __draw(self, widget, event):
        """
        """
        # code to fix a gtk issue that don't show text correctly
        self.__hbox.check_resize()

    def bw_set_auto_scroll(self, value):
        """
        """
        self.__auto_scroll = value

    def bw_set_editable(self, editable):
        """
        """
        self.__textview.set_editable(False)

    def bw_modify_font(self, font):
        """
        """
        self.__textview.modify_font(font)
        self.__lineview.modify_font(font)

    def bw_set_text(self, text):
        """
        """
        if text != "":

            count = text.count('\n') + text.count('\r')

            lines = range(1, count + 2)
            lines = [str(i).strip() for i in lines]

            self.__textbuffer.set_text(text)
            self.__linebuffer.set_text('\n'.join(lines))

            if self.__auto_scroll:
                self.bw_set_scroll_down()

        else:

            self.__textbuffer.set_text("")
            self.__linebuffer.set_text("")

    def bw_get_text(self):
        """
        """
        return self.__textbuffer.get_text(self.__textbuffer.get_start_iter(),
                                          self.__textbuffer.get_end_iter(),
                                          include_hidden_chars=True)

    def bw_set_scroll_down(self):
        """
        """
        self.get_vadjustment().set_value(self.get_vadjustment().upper)