Bug#581569: anjuta: Auto indenting large file takes extremely long and locks up Anjuta

[Jeremy Salwen]

Package: anjuta
Version: 2:2.30.0.0-3
Severity: normal

When attempting to auto-indent a large file, anjuta takes a rediculous amount of time.

Rather than simply indenting it in the background, it scrolls down, line by line, waiting for the display to refresh for every line.  When dealing with a couple of thousand lines, this can take an extremely long amount of time.

It seems that the scrolling down is what makes it so slow, because if you indent a selection of text which is entirely visible, it indents almost instantly, but if you select more than a screen's worth of text, then it will scroll down line by line, taking maybe half a second at each line.

While it is doing so, anjuta is entirely unresponsive and takes up 100% CPU.

Even if it were not for the extreme slowness of it, it might be desirable not to scroll down when you autoindent a file.

Steps to reproduce:  
Open a large text file (a few thousand lines)
Select everything (CTRL A)
Autoindent (CTRL I)

-- System Information:
Debian Release: squeeze/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'proposed-updates'), (90, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 2.6.33.3-rt17 (PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages anjuta depends on:
ii  anjuta-common               2:2.30.0.0-3 A GNOME development IDE, for C/C++
ii  libanjuta0                  2:2.30.0.0-3 A GNOME development IDE, for C/C++
ii  libapr1                     1.4.2-3      The Apache Portable Runtime Librar
ii  libc6                       2.10.2-6     Embedded GNU C Library: Shared lib
ii  libcairo2                   1.8.10-4     The Cairo 2D vector graphics libra
ii  libdevhelp-1-1              2.30.0-1     Library providing documentation br
ii  libgcc1                     1:4.4.4-1    GCC support library
ii  libgconf2-4                 2.28.1-3     GNOME configuration database syste
ii  libgda-4.0-4                4.0.7-1      data abstraction library based on 
ii  libgdl-1-3                  2.30.0-1     GNOME DevTool libraries
ii  libgladeui-1-9              3.6.7-1      GTK+ User Interface Build core lib
ii  libglib2.0-0                2.24.0-1     The GLib library of C routines
ii  libgtk2.0-0                 2.20.0-3     The GTK+ graphical user interface 
ii  libgtksourceview2.0-0       2.10.0-1     shared libraries for the GTK+ synt
ii  libpango1.0-0               1.28.0-1     Layout and rendering of internatio
ii  libstdc++6                  4.4.4-1      The GNU Standard C++ Library v3
ii  libsvn1                     1.6.9dfsg-1  Shared libraries used by Subversio
ii  libunique-1.0-0             1.1.6-1      Library for writing single instanc
ii  libvala0                    0.8.1-1      C# like language for the GObject s
ii  libvte9                     1:0.24.0-3   Terminal emulator widget for GTK+ 
ii  libwebkit-1.0-2             1.1.17-2     Web content engine library for Gtk
ii  libxml2                     2.7.7.dfsg-2 GNOME XML library
ii  libxslt1.1                  1.1.26-3     XSLT processing library - runtime 

Versions of packages anjuta recommends:
ii  autoconf                 2.65-4          automatic configure script builder
ii  autogen                  1:5.10-1.1      automated text file generator
ii  automake                 1:1.11.1-1      A tool for generating GNU Standard
ii  g++                      4:4.4.3-1       The GNU C++ compiler
ii  gcc                      4:4.4.3-1       The GNU C compiler
ii  gdb                      7.0.1-2         The GNU Debugger
ii  intltool                 0.41.1-1        Utility scripts for internationali
ii  liblocale-gettext-perl   1.05-6          Using libc functions for internati
ii  libtool                  2.2.6b-2        Generic library support script
ii  make                     3.81-8          An utility for Directing compilati
ii  yelp                     2.30.0+webkit-1 Help browser for GNOME

Versions of packages anjuta suggests:
pn  glade-gnome                   <none>     (no description available)
ii  libgtk2.0-dev                 2.20.0-3   Development files for the GTK+ lib
pn  libgtkmm2.0-dev               <none>     (no description available)
pn  valac                         <none>     (no description available)

-- no debconf information