From 8949a9e00e989e98abf334f839b7a4e91a2339e4 Mon Sep 17 00:00:00 2001
From: Seth Hitefield <sdhitefield@gmail.com>
Date: Thu, 5 Jun 2014 14:23:50 -0400
Subject: grc: Fixed scroll functionality in GRC. Also added clear and
scrollback capability for the logging window
---
grc/gui/Dialogs.py | 41 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 41 insertions(+)
(limited to 'grc/gui/Dialogs.py')
diff --git a/grc/gui/Dialogs.py b/grc/gui/Dialogs.py
index 04e4f0a862..f9a355128d 100644
--- a/grc/gui/Dialogs.py
+++ b/grc/gui/Dialogs.py
@@ -39,12 +39,20 @@ class TextDisplay(gtk.TextView):
self.set_editable(False)
self.set_cursor_visible(False)
self.set_wrap_mode(gtk.WRAP_WORD_CHAR)
+
+ # Added for scroll locking
+ self.scroll_lock = True
+
+ # Add a signal for populating the popup menu
+ self.connect("populate-popup", self.populate_popup)
def insert(self, line):
# make backspaces work
line = self._consume_backspaces(line)
# add the remaining text to buffer
self.get_buffer().insert(self.get_buffer().get_end_iter(), line)
+ # Automatically scroll on insert
+ self.scroll_to_end()
def _consume_backspaces(self, line):
"""removes text from the buffer if line starts with \b*"""
@@ -61,6 +69,39 @@ class TextDisplay(gtk.TextView):
# return remaining text
return line[back_count:]
+ def scroll_to_end(self):
+ if (self.scroll_lock == True):
+ buffer = self.get_buffer()
+ buffer.move_mark(buffer.get_insert(), buffer.get_end_iter())
+ self.scroll_to_mark(buffer.get_insert(), 0.0)
+
+ def clear(self):
+ buffer = self.get_buffer()
+ buffer.delete(buffer.get_start_iter(), buffer.get_end_iter())
+
+ # Callback functions to handle the scrolling lock and clear context menus options
+ # Action functions are set by the ActionHandler's init function
+ def clear_cb(self, menu_item, web_view):
+ self.clear_action()
+ def scroll_back_cb(self, menu_item, web_view):
+ # Trigger the toggle action
+ self.scroll_action()
+
+ # Create a popup menu for the scroll lock and clear functions.
+ def populate_popup(self, view, menu):
+ menu.append(gtk.SeparatorMenuItem())
+
+ lock = gtk.CheckMenuItem("Scroll Lock")
+ menu.append(lock)
+ lock.set_active(self.scroll_lock)
+ lock.connect('activate', self.scroll_back_cb, view)
+
+ clear = gtk.ImageMenuItem(gtk.STOCK_CLEAR)
+ menu.append(clear)
+ clear.connect('activate', self.clear_cb, view)
+ menu.show_all()
+ return False
+
def MessageDialogHelper(type, buttons, title=None, markup=None):
"""
Create a modal message dialog and run it.
--
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