Hi,
I am developing an application where I have to show/draw whitespaces, tabs
and enter.
To achieve this I am trying to pass Cairo Context to TextView.
I am Attaching an example where on the TextView where I want to draw a
square over the texts.
I am using GTK3.18, Python2.7 and Windows7.
Please help me how to draw on textview
--
Dhrubajyoti Doley,
Mobile: 09220919356
Email: dhruba.do...@gmail.com,
Mumbai, India
#!/usr/bin/env python
import gi
gi.require_version('Gtk', '3.0')
gi.require_version('GdkX11', '3.0')
from gi.repository import Gtk
from gi.repository import Gdk
import cairo
def draw_cb(widget, cr):
width = widget.get_allocated_width()
height = widget.get_allocated_height()
context = widget.get_style_context()
Gtk.render_background(context, cr, 0, 0, width, height)
cr.set_source_rgba(0,0,0,0.5)
cr.rectangle(10,10, 100, 100)
cr.fill()
return False
window = Gtk.Window()
window.set_default_size(200, 200)
window.connect("destroy", Gtk.main_quit)
textview = Gtk.TextView()
textview.set_wrap_mode(Gtk.WrapMode.WORD_CHAR)
textbuffer = textview.get_buffer()
textbuffer.set_text("Hello world"*18, -1)
textview.connect('draw', draw_cb)
textview.queue_draw()
window.add(textview)
window.show_all()
Gtk.main()
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