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Properly enable forward/backward buttons on GTK3 #12888

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Merged
merged 1 commit into from
Nov 28, 2018
Merged

Properly enable forward/backward buttons on GTK3 #12888

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9 changes: 8 additions & 1 deletion lib/matplotlib/backends/backend_gtk3.py
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Original file line number Diff line number Diff line change
Expand Up @@ -492,14 +492,15 @@ def _init_toolbar(self):
self.set_style(Gtk.ToolbarStyle.ICONS)
basedir = os.path.join(rcParams['datapath'], 'images')

self._gtk_ids = {}
for text, tooltip_text, image_file, callback in self.toolitems:
if text is None:
self.insert(Gtk.SeparatorToolItem(), -1)
continue
fname = os.path.join(basedir, image_file + '.png')
image = Gtk.Image()
image.set_from_file(fname)
tbutton = Gtk.ToolButton()
self._gtk_ids[text] = tbutton = Gtk.ToolButton()
tbutton.set_label(text)
tbutton.set_icon_widget(image)
self.insert(tbutton, -1)
Expand Down Expand Up @@ -572,6 +573,12 @@ def configure_subplots(self, button):
def _get_canvas(self, fig):
return self.canvas.__class__(fig)

def set_history_buttons(self):
can_backward = self._nav_stack._pos > 0
can_forward = self._nav_stack._pos < len(self._nav_stack._elements) - 1
self._gtk_ids['Back'].set_sensitive(can_backward)
self._gtk_ids['Forward'].set_sensitive(can_forward)


class FileChooserDialog(Gtk.FileChooserDialog):
"""GTK+ file selector which remembers the last file/directory
Expand Down