allow terminal colors to be set from preferences dialog * QTerminalInterface.h (QTerminalInterface::setBackgroundColor, QTerminalInterface::setForeroundColor, QTerminalInterface::setSelectionColor, QTerminalInterface::setCursorColor): New functions. * QUnixTerminalImpl.h, QUnixTerminalImpl.cpp QUnixTerminalImpl::setBackgroundColor, QUnixTerminalImpl::setForeroundColor, QUnixTerminalImpl::setSelectionColor, QUnixTerminalImpl::setCursorColor): New functions. * QWinTerminalImpl.h, QWinTerminalImpl.cpp (QConsolePrivate::setCursorColor): New argument, useForegroundColor. (QConsolePrivate::m_selectionColor, QConsolePrivate::m_cursorColor): New member variablebs. (QConsolePrivate::selectionColor, QConsolePrivate::cursorColor, QConsolePrivate::setSelectionColor, QConsolePrivate::setCursorColor): Use member variables instead of Windows console color map. (QConsolePrivate::cursorColor): Return foreground color if stored color is invalid. (QConsolePrivate::setCursorColor): Store invalid color if useForegroundcolor. (QConsolePrivate::QConsolePrivate): Set default selection and cursor colors. * QTerminal.cc (QTerminal::notice_settings): Handle terminal color settings. * resource-manager.h, resource-manager.cc (resource_manager::terminal_color_names, resource_manager::terminal_default_colors, resource_manager::terminal_color_chars): New functions. * settings-dialog.h, settings-dialog.cc (settings_dialog::read_terminal_colors): New function. (settings_dialog::settings_dialog): Call read_terminal_colors. Read valud for using foreground color for cursor color. (settings_dialog::write_terminal_colors): New function. (settings_dialog::write_changed_settings): Call write_terminal_colors. Handle setting for using foreground color for cursor color. * settings-dialog.ui: Add color selection to terminal settings dialog.

## Copyright (C) 2008-2012 David Bateman
##
## This file is part of Octave.
##
## Octave is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 3 of the License, or (at
## your option) any later version.
##
## Octave is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Octave; see the file COPYING.  If not, see
## <http://www.gnu.org/licenses/>.

## -*- texinfo -*-
## @deftypefn {Function File} {} display (@var{a})
## Display the contents of an object.  If @var{a} is an object of the
## class "myclass", then @code{display} is called in a case like
##
## @example
## myclass (@dots{})
## @end example
##
## @noindent
## where Octave is required to display the contents of a variable of the
## type "myclass".
##
## @seealso{class, subsref, subsasgn}
## @end deftypefn

function idx = display (a)

  if (nargin != 1)
    print_usage ();
  endif
 
  ## Only reason we got here is that there was no overloaded display()
  ## function for object a.  This may mean it is a built-in.
  str = disp (a);
  if (isempty (strfind (str, "<class ")))
    disp (str);   
  else
    error ('display: not defined for class "%s"', class (a));
  endif

endfunction