use signal/slot for updating workspace instead of using event listener * main-window.h, main-window.cc: Clean up list of include files. (main_window::prepare_to_exit): Rename from prepare_to_quit. Change all uses. (main_window::update_workspace): Delete. (main_window::construct): Don't connect _octave_qt_event_listener:update_workspace_signal to main_window::update_workspace. (main_window::construct_octave_qt_link): Connect _octave_qt_link::set_workspace_signal to _workspace_model::set_workspace. Connect _octave_qt_link::clear_workspace_signal to _workspace_model::clear_workspace. * symbol-information.h, symbol-information.cc: Delete * libgui/src/module.mk (noinst_HEADERS, src_libgui_src_la_SOURCES): Remove them from the lists. * octave-qt-link.h, octave-qt-link.cc: Don't use symbol_information to store workspace info. (octave_qt_link::do_update_workspace): Delete. (octave_qt_link::do_set_workspace, octave_qt_link::do_clear_workspace): New functions. (octave_qt_link::do_pre_input_event): Don't call do_update_workspace. (octave_qt_link::set_workspace_signal, octave_qt_link::clear_workspace_signal): New signals. * workspace-model.h, workspace-model.cc: Don't use symbol_information to store workspace info. Accept workspace info through a signal/slot combination, not by asking the symbol table. (workspace_model::request_update_workspace, (workspace_model::update_workspace_callback): Delete. (workspace_model::set_workspace, workspace_model::clear_workspace, workspace_model::clear_data, workspace_model::clear_tree, workspace_model::update_tree, workspace_model::append_tree): New functions. * workspace-view.h, workspace-view.cc (workspace_view::model_changed): Don't call update_workspace_callback. The model now signals the view when it has changed. * input.cc (octave_base_reader::octave_gets, get_debug_input): Call octave_link::set_workspace just prior to prompting for input. * workspace-element.h: New file. * libinterp/interpfcn/module.mk (INTERPFCN_INC): Include it in the list. * octave-link.cc: Don't include symtab.h. * octave-link.h (octave_link::update_workspace): Delete. (octave_link::set_workspace, octave_link::do_set_workspace, * octave_link::clear_workspace, octave_link::do_clear_workspace): New functions. * symtab.h, symtab.cc (symbol_table::workspace_info, symbol_table::do_workspace_info): New functions. * ov.h (octave_value::short_disp): New function. * ov-base.h, ov-base.cc (octave_base_value::short_disp): New function. * ov-base-scalar.h, ov-base-scalar.cc (octave_base_scalar<ST>::short_disp): New function. * ov-range.h, ov-range.cc (octave_range::short_disp): New function.

/*

Copyright (C) 2008-2012 Jaroslav Hajek

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/>.

*/

#if !defined (octave_float_diag_matrix_h)
#define octave_float_diag_matrix_h 1

#include "ov-base.h"
#include "ov-base-diag.h"
#include "ov-flt-re-mat.h"
#include "ov-typeinfo.h"

// Real diagonal matrix values.

class
OCTINTERP_API
octave_float_diag_matrix
  : public octave_base_diag<FloatDiagMatrix, FloatMatrix>
{
public:

  octave_float_diag_matrix (void)
    : octave_base_diag<FloatDiagMatrix, FloatMatrix> () { }

  octave_float_diag_matrix (const FloatDiagMatrix& m)
    : octave_base_diag<FloatDiagMatrix, FloatMatrix> (m) { }

  octave_float_diag_matrix (const octave_float_diag_matrix& m)
    : octave_base_diag<FloatDiagMatrix, FloatMatrix> (m) { }

  ~octave_float_diag_matrix (void) { }

  octave_base_value *clone (void) const { return new octave_float_diag_matrix (*this); }
  octave_base_value *empty_clone (void) const { return new octave_float_diag_matrix (); }

  type_conv_info numeric_conversion_function (void) const;

  octave_base_value *try_narrowing_conversion (void);

  builtin_type_t builtin_type (void) const { return btyp_float; }

  bool is_real_matrix (void) const { return true; }

  bool is_real_type (void) const { return true; }

  bool is_single_type (void) const { return true; }

  bool is_float_type (void) const { return true; }

  DiagMatrix diag_matrix_value (bool = false) const;

  FloatDiagMatrix float_diag_matrix_value (bool = false) const;

  ComplexDiagMatrix complex_diag_matrix_value (bool = false) const;

  FloatComplexDiagMatrix float_complex_diag_matrix_value (bool = false) const;

  bool save_binary (std::ostream& os, bool& save_as_floats);

  bool load_binary (std::istream& is, bool swap,
                    oct_mach_info::float_format fmt);

  octave_value map (unary_mapper_t umap) const;

private:

  bool chk_valid_scalar (const octave_value&,
                         float&) const;

  DECLARE_OCTAVE_ALLOCATOR

  DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA
};

#endif