Created
February 26, 2012 01:43
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Line numbers in Gtk3 text view margin
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#!/usr/bin/env python3 | |
from gi.repository import Gtk | |
from gi.repository import Pango | |
def on_text_view_draw(text_view, cairoc): | |
print("Drawing...") | |
# XXX: Rest of function not yet ported. | |
text_buffer = text_view.get_buffer() | |
bounds = text_buffer.get_bounds() | |
text = text_buffer.get_text(*bounds) | |
nlines = text.count("\n") + 1 | |
layout = pango.Layout(text_view.get_pango_context()) | |
layout.set_markup("\n".join([str(x + 1) for x in range(nlines)])) | |
layout.set_alignment(Pango.Alignment.RIGHT) | |
width = layout.get_pixel_size()[0] | |
text_view.set_border_window_size(Gtk.TextWindowType.RIGHT, width + 4) | |
y = -text_view.window_to_buffer_coords(Gtk.TextWindowType.RIGHT, 2, 0)[1] | |
window = text_view.get_window(Gtk.TextWindowType.RIGHT) | |
window.clear() | |
text_view.style.paint_layout(window=window, | |
state_type=Gtk.STATE_NORMAL, | |
use_text=True, | |
area=None, | |
widget=text_view, | |
detail=None, | |
x=2, | |
y=y, | |
layout=layout) | |
text_view = Gtk.TextView() | |
text_buffer = text_view.get_buffer() | |
text_buffer.insert_at_cursor("ABC\nabc") | |
text_view.set_border_window_size(Gtk.TextWindowType.RIGHT, 24) | |
text_view.connect("draw", on_text_view_draw) | |
scroller = Gtk.ScrolledWindow() | |
scroller.set_shadow_type(Gtk.ShadowType.IN) | |
scroller.add(text_view) | |
window = Gtk.Window() | |
window.connect("delete-event", Gtk.main_quit) | |
window.set_position(Gtk.WindowPosition.CENTER) | |
window.set_default_size(300, 100) | |
window.set_border_width(12) | |
window.add(scroller) | |
window.show_all() | |
Gtk.main() |
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Gtk 3 - Doesn't work. No numbers.