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# bst_message_window

## (Toolbox/bst_message_window.m in BrainStorm 2.0 (Alpha))

### Function Synopsis

    varargout = bst_message_window(varargin)

### Help Text

    BST_MESSAGE_WINDOW - Application M-file for bst_message_window.fig, with NON CALLBACKS
     function varargout = bst_message_window(varargin)
        FIG = BST_MESSAGE_WINDOW launch bst_message_window GUI.
        BST_MESSAGE_WINDOW('callback_name', ...) invoke the named callback.
     NON CALLBACKS:
     bst_message_window(cellstr) appends cell array of strings cellstr to window
     bst_message_window('append',str) appends string or cell of strings to window
     bst_message_window(str) will also append string, unless it is a valid function call
     bst_message_window('wrap',str) will wrap string or cell of strings to the window
     bst_message_window('unique',str) will wrap string or cell of strings to a unique window,
      returning the handle to the window, i.e. it won't go to the message window, but rather
      its own message window.
     bst_message_window('overwrite',str) overwrites the last line with the new string

     bst_message_window('close') removes the window, otherise the CloseRequestFcn executes
     If window does not exist, 'append' will open it

### Cross-Reference Information

This function calls

    bst_color_scheme                   C:\BrainStorm_2001\Toolbox\bst_color_scheme.m
    bst_layout                         C:\BrainStorm_2001\Toolbox\bst_layout.m

This function is called by

    avw2brainstorm                     C:\BrainStorm_2001\Toolbox\avw2brainstorm.m
    bem_gain                           C:\BrainStorm_2001\Toolbox\bem_gain.m
    bem_xfer                           C:\BrainStorm_2001\Toolbox\bem_xfer.m
    brainstorm_filt                    C:\BrainStorm_2001\Toolbox\brainstorm_filt.m
    browse_study_folder                C:\BrainStorm_2001\Toolbox\browse_study_folder.m
    bst_headmodeler                    C:\BrainStorm_2001\Toolbox\bst_headmodeler.m
    bst_imaging_display                C:\BrainStorm_2001\Toolbox\bst_imaging_display.m
    bst_mriviewer                      C:\BrainStorm_2001\Toolbox\bst_mriviewer.m
    bst_sourceimaging                  C:\BrainStorm_2001\Toolbox\bst_sourceimaging.m
    bst_splashscreen                   C:\BrainStorm_2001\Toolbox\bst_splashscreen.m
    bst_static_taskbar                 C:\BrainStorm_2001\Toolbox\bst_static_taskbar.m
    bst_wavedata_display               C:\BrainStorm_2001\Toolbox\bst_wavedata_display.m
    data_manager                       C:\BrainStorm_2001\Toolbox\data_manager.m
    database_manager                   C:\BrainStorm_2001\Toolbox\database_manager.m
    dataplot_cb                        C:\BrainStorm_2001\Toolbox\dataplot_cb.m
    ds2brainstorm                      C:\BrainStorm_2001\Toolbox\ds2brainstorm.m
    extract_channels                   C:\BrainStorm_2001\Toolbox\extract_channels.m
    get_channel                        C:\BrainStorm_2001\Toolbox\get_channel.m
    get_user_directory                 C:\BrainStorm_2001\Toolbox\get_user_directory.m
    gridmaker                          C:\BrainStorm_2001\Toolbox\gridmaker.m
    headmodeler_gui                    C:\BrainStorm_2001\Toolbox\headmodeler_gui.m
    help_manager                       C:\BrainStorm_2001\Toolbox\help_manager.m
    importdata                         C:\BrainStorm_2001\Toolbox\importdata.m
    layout_manager                     C:\BrainStorm_2001\Toolbox\layout_manager.m
    lcmvbf                             C:\BrainStorm_2001\Toolbox\lcmvbf.m
    make_default_database              C:\BrainStorm_2001\Toolbox\make_default_database.m
    make_default_study                 C:\BrainStorm_2001\Toolbox\make_default_study.m
    make_default_subject               C:\BrainStorm_2001\Toolbox\make_default_subject.m
    manage_corticalscouts              C:\BrainStorm_2001\Toolbox\manage_corticalscouts.m
    meg4read                           C:\BrainStorm_2001\Toolbox\meg4read.m
    meg4write                          C:\BrainStorm_2001\Toolbox\meg4write.m
    minnorm                            C:\BrainStorm_2001\Toolbox\minnorm.m
    mri_read_tool                      C:\BrainStorm_2001\Toolbox\mri_read_tool.m
    os_meg                             C:\BrainStorm_2001\Toolbox\os_meg.m
    overlapping_sphere                 C:\BrainStorm_2001\Toolbox\overlapping_sphere.m
    parametric_estimation              C:\BrainStorm_2001\Toolbox\parametric_estimation.m
    phantom_channel_assignment         C:\BrainStorm_2001\Toolbox\phantom_channel_assignment.m
    rap_music_parameters               C:\BrainStorm_2001\Toolbox\rap_music_parameters.m
    rapmusic_gui                       C:\BrainStorm_2001\Toolbox\rapmusic_gui.m
    results_time_series                C:\BrainStorm_2001\Toolbox\results_time_series.m
    results_visualization              C:\BrainStorm_2001\Toolbox\results_visualization.m
    select_folder                      C:\BrainStorm_2001\Toolbox\select_folder.m
    set_sourceviewing_parameters       C:\BrainStorm_2001\Toolbox\set_sourceviewing_parameters.m
    simulator                          C:\BrainStorm_2001\Toolbox\simulator.m
    simulator_mri                      C:\BrainStorm_2001\Toolbox\simulator_mri.m
    source_grids                       C:\BrainStorm_2001\Toolbox\source_grids.m
    sourceimaging                      C:\BrainStorm_2001\Toolbox\sourceimaging.m
    study_editor                       C:\BrainStorm_2001\Toolbox\study_editor.m
    subject_editor                     C:\BrainStorm_2001\Toolbox\subject_editor.m
    tess_align_tool                    C:\BrainStorm_2001\Toolbox\tess_align_tool.m
    web_pages                          C:\BrainStorm_2001\Toolbox\web_pages.m
    zscore_gui                         C:\BrainStorm_2001\Toolbox\zscore_gui.m

### Listing of function C:\BrainStorm_2001\Toolbox\bst_message_window.m

    function varargout = bst_message_window(varargin)
    %BST_MESSAGE_WINDOW - Application M-file for bst_message_window.fig, with NON CALLBACKS
    % function varargout = bst_message_window(varargin)
    %    FIG = BST_MESSAGE_WINDOW launch bst_message_window GUI.
    %    BST_MESSAGE_WINDOW('callback_name', ...) invoke the named callback.
    % NON CALLBACKS:
    % bst_message_window(cellstr) appends cell array of strings cellstr to window
    % bst_message_window('append',str) appends string or cell of strings to window
    % bst_message_window(str) will also append string, unless it is a valid function call
    % bst_message_window('wrap',str) will wrap string or cell of strings to the window
    % bst_message_window('unique',str) will wrap string or cell of strings to a unique window,
    %  returning the handle to the window, i.e. it won't go to the message window, but rather
    %  its own message window.
    % bst_message_window('overwrite',str) overwrites the last line with the new string
    %
    % bst_message_window('close') removes the window, otherise the CloseRequestFcn executes
    % If window does not exist, 'append' will open it

    %<autobegin> ---------------------- 26-May-2004 11:29:41 -----------------------
    % --------- Automatically Generated Comments Block Using AUTO_COMMENTS ---------
    %
    % CATEGORY: GUI and Related
    %
    % Alphabetical list of external functions (non-Matlab):
    %   toolbox\bst_color_scheme.m
    %   toolbox\bst_layout.m
    %   toolbox\bst_message_window.m  NOTE: Routine calls itself explicitly
    %
    % Subfunctions in this file, in order of occurrence in file:
    %   varargout = append(str,fig);
    %   varargout = unique(str);
    %   varargout = wrap(str,fig);
    %   varargout = overwrite(rep_str,fig);
    %   varargout = close();
    %   varargout = Messages_Callback(h, eventdata, handles, varargin)
    %   varargout = clear_selected_Callback(h, eventdata, handles, varargin)
    %   varargout = clear_all_Callback(h, eventdata, handles, varargin)
    %   varargout = BrainStormMessages_CloseRequestFcn(h, eventdata, handles, varargin)
    %   varargout = BrainStormMessages_ResizeFcn(h, eventdata, handles, varargin)
    %
    % Application data and their calls in this file:
    %   'BrainStormMessageWindow'
    %   'MAXLength'
    %   'TileType'
    %
    %   setappdata(0,'BrainStormMessageWindow',fig);
    %   setappdata(fig,'MAXLength',200);
    %   setappdata(fig,'TileType','M');
    %   setappdata(fig,'TileType','T');
    %
    %   MAXLength = getappdata(fig,'MAXLength');
    %   delete(getappdata(0,'BrainStormMessageWindow'));
    %   fig = getappdata(0,'BrainStormMessageWindow');
    %   if(~ishandle(getappdata(0,'BrainStormMessageWindow')))
    %
    % Figure Files opened by this function:
    %   mfilename
    %
    %   Format of strings below: Type:Style:Tag, "String", CallBack Type and Call
    %   <automatic> callback is <Tag>_Callback by Matlab default
    %
    % Callbacks by figure bst_message_window.fig
    %   figure::BrainStormMessages "" uses ResizeFcn for <automatic>
    %   uicontrol:listbox:Messages "BrainStorm Message Window" uses Callback for <automatic>
    %
    % At Check-in: $Author: Mosher $  $Revision: 19 $  $Date: 5/26/04 9:58a $
    %
    % This software is part of BrainStorm Toolbox Version 2.0 (Alpha) 24-May-2004
    %
    % Principal Investigators and Developers:
    % ** Richard M. Leahy, PhD, Signal & Image Processing Institute,
    %    University of Southern California, Los Angeles, CA
    % ** John C. Mosher, PhD, Biophysics Group,
    %    Los Alamos National Laboratory, Los Alamos, NM
    % ** Sylvain Baillet, PhD, Cognitive Neuroscience & Brain Imaging Laboratory,
    %    CNRS, Hopital de la Salpetriere, Paris, France
    %
    % See BrainStorm website at http://neuroimage.usc.edu for further information.
    %
    % Copyright (c) 2004 BrainStorm by the University of Southern California
    % This software distributed  under the terms of the GNU General Public License
    % as published by the Free Software Foundation. Further details on the GPL
    % license can be found at http://www.gnu.org/copyleft/gpl.html .
    %
    % FOR RESEARCH PURPOSES ONLY. THE SOFTWARE IS PROVIDED "AS IS," AND THE
    % UNIVERSITY OF SOUTHERN CALIFORNIA AND ITS COLLABORATORS DO NOT MAKE ANY
    % WARRANTY, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OF
    % MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, NOR DO THEY ASSUME ANY
    % LIABILITY OR RESPONSIBILITY FOR THE USE OF THIS SOFTWARE.
    %<autoend> ------------------------ 26-May-2004 11:29:41 -----------------------

    % ----------------- Change History ------------------------
    % JCM 27 Feb 2002 changed propertyname to BrainStormMessageWindow, handled "catch" for string input
    % JCM 3 May 2002 added 'wrap' and 'overwrite' options
    % JCM 10 May 2002 changed CloseRequestFcn to allow non-modal closing.
    % JCM 15 May 2002 updated 'overwrite' to allow multiple lines of overwrite
    % SB  15 Oct 2002 when BrainStorm GUIs are closed (e.g. when using command-line BrainStorm)
    %                 bst_message_window uses the basic DISP command to display info in
    %                 Matlab's command window
    % JCM 29 Oct 2002 Preferences should not be erased. Test for presence of taskbar,
    %                 using getappdata(0,'BrainStormTaskbar'); Fixed MAXLength use, should be
    %                 an appdata in the message figure, also rolls the last MAXLength lines,
    %                 rather than clearing. All cases now handle non-gui mode.
    %                 Redid message window to be along the bottom of the screen.
    % JCM 13 May 2003 Moved message window buttons to new layout_manager, made window
    %                 compatible with layout manager
    % JCM 9 Jun 2003  Added "unique" function to allow use for a convenient message and information window
    % ----------------------------------------------------------

    % Last Modified by GUIDE v2.0 13-May-2003 20:50:59

    if nargin == 0  % LAUNCH GUI

       fig = openfig(mfilename,'reuse');

       % Use system color scheme for figure:
       set(fig,'Color',get(0,'defaultUicontrolBackgroundColor'));

       % Generate a structure of handles to pass to callbacks, and store it.
       handles = guihandles(fig);
       guidata(fig, handles);

       if nargout > 0
          varargout{1} = fig;
       end

       % BrainStorm specific code here
       bst_color_scheme(fig);
       set(handles.Messages,'fontname','FixedWidth'); % good for tables
       setappdata(fig,'TileType','M'); % message window
       bst_layout('align',fig);

       setappdata(0,'BrainStormMessageWindow',fig); % set the handle in the taskbar application data

       % ------ SET MAXIMUM NUMBER OF LINES TO BE DISPLAYED ------------------
       setappdata(fig,'MAXLength',200); % Maximum number of lines to be displayed in the message window.
       % too many lines significantly slows down all BsT processes.
       % JCM changed 29 Oct to roll the last 200 lines, not clear.

    elseif ischar(varargin{1}) % INVOKE NAMED SUBFUNCTION OR CALLBACK

       try
          if (nargout)
             [varargout{1:nargout}] = feval(varargin{:}); % FEVAL switchyard
          else
             feval(varargin{:}); % FEVAL switchyard
          end
       catch
          % string was not a valid function call, treat as a string
          try
             append(varargin); % try appending the string
          catch
             disp(lasterr);
          end
       end

    elseif iscell(varargin{1}) % input is a cell array

       append(varargin{1});

    end

    % ---------------- subfunctions -----------------
    % --------------------------------------------------------------------
    function varargout = append(str,fig);
    % Call as bst_message_window('append',str)
    %  alternatively, if string is unrecognized command, switchyard will call this subfunction

    if ischar(str),
       str = {str}; % convert to cell array
    end

    % Test whether user is calling BrainStorm routines from command line function calls or GUIs.

    if ~isappdata(0,'BrainStormTaskbar')
       % The taskbar does not exists, assume we are in command line mode
       for i = 1:length(str),
          disp(str{i});
       end
       return % break away
    end

    % else we are in GUI mode

    % get the handle to the message window
    if(~isappdata(0,'BrainStormMessageWindow')), % missing
       bst_message_window; % create it
    end
    if(~ishandle(getappdata(0,'BrainStormMessageWindow')))
        bst_message_window; % invalid handle, create it again
    end

    % append a string to the message window. str is either string or cell of strings.
    if(~exist('fig','var')), % caller did not give fig handle (default)
        fig = getappdata(0,'BrainStormMessageWindow');
    end

    handles = guidata(fig); % handles in that figure

    MAXLength = getappdata(fig,'MAXLength');

    lenstr = length(str); % number of lines being added

    oldstr = get(handles.Messages,'string');
    if ischar(oldstr)
       oldstr = {oldstr}; % convert to cell array
    end

    oldstr(end+[1:lenstr]) = str; % add new strings to end of old string

    ndx = [-MAXLength:0]+length(oldstr); % last MAXLength lines

    % ndx may be negative, if length shorter than MAXLength
    ndx = ndx(ndx > 0); % keep only the positive ones

    %trim
    oldstr = oldstr(ndx);

    % select all of the new message for visibility to the user
    set(handles.Messages,'string',oldstr,...
       'val',length(oldstr)+[(1-lenstr):0],...
       'listboxtop',length(oldstr)); % put in

    figure(fig); % bring to the front

    drawnow

    if nargout > 0
        varargout{1} = fig;
    end

    % -------------------------------------------------------------------
    function varargout = unique(str);
    % wrap text to a unique message window, not the main window
    % JCM 9-Jun-2003 creating a variant of the message window

    fig = openfig(mfilename,'new'); % new unique filename

    % Use system color scheme for figure:
    set(fig,'Color',get(0,'defaultUicontrolBackgroundColor'));

    % Generate a structure of handles to pass to callbacks, and store it.
    handles = guihandles(fig);
    guidata(fig, handles);

    if nargout > 0
        varargout{1} = fig;
    end

    % BrainStorm specific code here
    bst_color_scheme(fig);
    set(handles.Messages,'fontname','FixedWidth'); % good for tables
    setappdata(fig,'TileType','T'); % tile
    bst_layout('align',fig,1,2,1); % default action, can be set in calling routine as well

    % customize for a unique message window
    set(fig,'Name','Information','Tag','Information','CloseRequestFcn','closereq','ResizeFcn',[]);
    overwrite(sprintf('Information Message %s',datestr(now)),fig); % replace the "BrainStorm Message Window" line

    % ------ SET MAXIMUM NUMBER OF LINES TO BE DISPLAYED ------------------
    setappdata(fig,'MAXLength',200); % Maximum number of lines to be displayed in the message window.
    % too many lines significantly slows down all BsT processes.
    % JCM changed 29 Oct to roll the last 200 lines, not clear.

    wrap(str,fig); % now wrap the text to just this unique fig

    % --------------------------------------------------------------------
    function varargout = wrap(str,fig);
    % called as mfilename('wrap',str), wrap string to the window

    if ischar(str),
       str = {str}; % convert to cell for consistent handling
    end

    if ~isappdata(0,'BrainStormTaskbar')
       % The taskbar does not exists, assume we are in command line mode
       for i = 1:length(str),
          disp(str{i});
       end
       return % break away
    end

    % else we are in GUI Mode
    % get the handle to the message window

    if(~isappdata(0,'BrainStormMessageWindow')), % missing
       bst_message_window; % create it
    end
    if(~exist('fig','var')), % user did not give as input to this function (default)
        fig = getappdata(0,'BrainStormMessageWindow');
    end

    handles = guidata(fig); % handles in that figure

    if(0), % deprecated, user may send cell array of strings
       % first convert str into one long message string, with proper spaces
       msg_str = [];
       for i = 1:length(str),
          msg_str = [msg_str str{i}];
          if(~strcmp(msg_str(end),' ')),
             msg_str(end+1) = ' ';
          end
       end
       msg_str(end) = []; % remove last space
    else
       msg_str = str; % don't alter
    end

    % wrap the text to the message window
    % textwrap in R12.1 is a little too wide
    mesPos = get(handles.Messages,'position');
    mesWidth = mesPos(3); % current width
    set(handles.Messages,'position',[mesPos(1:2) mesWidth*.95 mesPos(4)]); % slightly narrower
    outstring = textwrap(handles.Messages,msg_str); % wrap to columns
    set(handles.Messages,'position',mesPos); % original size

    append(outstring,fig);

    if nargout > 0
        varargout{1} = fig;
    end

    % --------------------------------------------------------------------
    function varargout = overwrite(rep_str,fig);
    % Overwrite the last lines of the message window with cell array of rep_str
    %  if rep_str is a string, overwrite just the last line.
    % Useful for updating a "Processing . . ." with a "Done"
    %  or a pseudo waitbar,
    % bst_message_window('Wait: 1 of 10')
    % for i = 2:10,bst_message_window('overwrite',sprintf('Wait: %.0f of 10',i)),<process>,end

    if(ischar(rep_str)),
       rep_str = {rep_str}; % make cell for consistent handling
    end

    if ~isappdata(0,'BrainStormTaskbar')
       % The taskbar does not exists, assume we are in command line mode
       for i = 1:length(str),
          disp(str{i});
       end
       return % break away
    end

    NumLines = length(rep_str); % how many lines to replace

    % get the handle to the message window
    if(~isappdata(0,'BrainStormMessageWindow')), % missing
       bst_message_window; % create it
    end

    if(~exist('fig','var')), % user did not give as input to this function (default)
        fig = getappdata(0,'BrainStormMessageWindow');
    end
    handles = guidata(fig); % handles in that figure

    str = get(handles.Messages,'string'); %existing strings

    if(ischar(str)),
       str = {str}; % make cell for consistent handling
    end

    if(length(str) >= NumLines),
       str([(1-NumLines):0]+end) = rep_str;
    else
       % there are not enough lines in the display, just append
       str(end+[1:NumLines]) = rep_str;
    end

    set(handles.Messages,...
       'string',str,'listboxtop',...
       length(str),'val',length(str)+[(1-NumLines):0]); % put in, with new strings clearly showing

    if nargout > 0
        varargout{1} = fig;
    end

    % --------------------------------------------------------------------
    function varargout = close();
    % close the message window. Otherwise, the CloseRequestFcn will execute
    delete(getappdata(0,'BrainStormMessageWindow')); % close the window
    rmappdata(0,'BrainStormMessageWindow'); % clear the application data

    % -------------- Callback routines -----------------------

    % --------------------------------------------------------------------
    function varargout = Messages_Callback(h, eventdata, handles, varargin)
    % double clicking will remove a line. Otherwise, no effect
    % doulbe right clicking will remove lots of highlighted lines

    status = get(handles.BrainStormMessages,'SelectionType');
    switch status
    case 'normal' % do nothing
    case 'open' % user double clicked
       clear_selected_Callback(h,eventdata,handles,varargin);
    end

    % --------------------------------------------------------------------
    function varargout = clear_selected_Callback(h, eventdata, handles, varargin)
    % clear the selected messages, keep the view stable

    val = get(handles.Messages,'val'); % vector of lines to delete
    str = get(handles.Messages,'string'); %existing strings
    listboxtop = get(handles.Messages,'listboxtop'); %what is showing at the top of window

    str(val) = []; % remove the existing strings
    val = val(1); % set to last string deleted
    val = min(val,length(str)); % in acceptable range

    listboxtop = min(listboxtop,val); % in acceptable range
    listboxtop = min(listboxtop,length(str)); % in acceptable range

    if(length(str) == 0),
       set(handles.Messages,'val',1,'ListBoxTop',1,'string',{'BrainStorm Message Window'})
    else
       set(handles.Messages,'val',val,'string',str,'listboxtop',listboxtop);
    end

    % --------------------------------------------------------------------
    function varargout = clear_all_Callback(h, eventdata, handles, varargin)

    % no longer a button for this 13 May 2003
    % can instead highlight lots of lines, then double right click to remove them
    ButtonName = questdlg('Clear all lines?','Message Window','Yes','No','No');

    switch ButtonName
    case 'Yes'
       set(handles.Messages,'val',1,'ListBoxTop',1,'string',{'BrainStorm Message Window'})
    end

    % --------------------------------------------------------------------
    function varargout = BrainStormMessages_CloseRequestFcn(h, eventdata, handles, varargin)

    % since this window now automatically opens when needed, this forced closure
    %  is no longer really necessary. JCM 13-May-2002

    if(0), % deprecated code
       str = {'','This BrainStorm message window should stay open.',''};
       bst_message_window('append',str);

       ButtonName = questdlg('Close the message window?','Message Window','Yes','No','No');

       switch ButtonName
       case 'Yes'
          bst_message_window('close');
       end
    else % newer code, non-modal closing
       bst_message_window('close');
       disp(' ')
       disp('Generally, the BrainStorm Message Window should remain open.')
       disp('Message window closed.')
    end

    % --------------------------------------------------------------------
    function varargout = BrainStormMessages_ResizeFcn(h, eventdata, handles, varargin)

    % want to keep the fonts at the same size

    set(handles.Messages,'fontunits','points');
    set(handles.Messages,'fontsize',8);

    if(0) % these buttons gone now
        set(handles.clear_all,'fontunits','points');
        set(handles.clear_all,'fontsize',10);

        set(handles.clear_selected,'fontunits','points');
        set(handles.clear_selected,'fontsize',10);

        set(handles.Title_text,'fontunits','points');
        set(handles.Title_text,'fontsize',14);
    end

    bst_color_scheme(handles.BrainStormMessages);

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