PyGobject（七十五）Gtk.Widget之Gtk.Scrollbar

• GtkScrollbar
  • Methods
  • Virtual Methods
  • Properties
  • Signals
  • 例子

Gtk.Scrollbar

Gtk.Scrollbar滾動條，是同Gtk.Scale一樣，是Gtk.Range的直接子類

Methods

方法修飾詞	方法名及參數
static	new (orientation, adjustment)

Virtual Methods

Properties

Name	Type	Flags	Short Description

Signals

Name	Short Description

例子

代碼：

#!/usr/bin/env python3
# Created by xiaosanyu at 16/7/11
# section 119
# 
# author: xiaosanyu
# website: yuxiaosan.tk \
#          http://blog.csdn.net/a87b01c14
# created: 16/7/11

TITLE = "Scrollbar"
DESCRIPTION = """
The Gtk.Scrollbar widget is a horizontal or vertical scrollbar,
depending on the value of the Gtk.Orientable :orientation property.
"""

import gi

gi.require_version('Gtk', '3.0')
from gi.repository import Gtk

string = "Try to move the Scrollbar,watch carefully the text cursor changes!!"


class ScrollbarWindow(Gtk.Window):
    def __init__(self):
        Gtk.Window.__init__(self, title="Scrollbar Demo")
        gird = Gtk.Grid()
        textview = self.create_textview()
        self.buffer = textview.get_buffer()
        gird.attach(textview, , , , )
        sb = self.create_scrollbar()
        gird.attach(sb, , , , )
        self.add(gird)

    @staticmethod
    def create_textview():
        textview = Gtk.TextView()
        buffer = textview.get_buffer()
        buffer.set_text(string)
        buffer.place_cursor(buffer.get_start_iter())
        return textview

    def create_scrollbar(self):
        ad = Gtk.Adjustment(value=, lower=, upper=len(string), step_increment=, page_increment=,
                            page_size=)
        sb = Gtk.Scrollbar(orientation=Gtk.Orientation.HORIZONTAL, adjustment=ad)
        sb.connect("value-changed", self.move)
        return sb

    def move(self, range):
        self.buffer.place_cursor(self.buffer.get_iter_at_offset(int(range.get_value())))
        # print("Move", range.get_value())


def main():
    win = ScrollbarWindow()
    win.connect("delete-event", Gtk.main_quit)
    win.show_all()
    Gtk.main()


if __name__ == "__main__":
    main()
           

代碼下載下傳位址：http://download.csdn.net/detail/a87b01c14/9594728