how to set matlab built in Editors Callback

I like to extend the matlab editor with a simple function.

If i press "(" the a function is called which automatically inserts ")" and move the cursor one to the left.

I tried to figure it out like it's done with the command window here: http://www.mathworks.com/matlabcentral/newsreader/view_thread/257842View thread

Matlab Version 8

EDIT{ it's nearly that what i want. it works with the code below (at least on Matlab 8)

i used some functios of Yair Altmans editor macro to get the hEditorPane: http://UndocumentedMatlab.com/blog/EditorMacro/

Done:

• apply on all opened Editor (getAll Active Editors)
• run at startup -> solution startup doc
• apply on newly opened edtiors

I'll Test this function and extend it. if it's stable I'll post it in the file exchange. For now feel free to copy 'n' paste it

[Walter Roberson]

To check, which MATLAB version is this for?

[Andreas Justin]

following code allows to override the edit function. I have it in the startup file

 if overloadEDIT
      Matlab_extendEditorFunctionality(true)
      addpath(matlabroot);
      fid = fopen(fullfile(matlabroot,'edit.m'),'w');
      fprintf(fid,['function edit(str)',char(13), 'if nargin < 1 || isempty(str)',char(13),...
          'str='''';',char(13),'end',char(13), 'rmpath(matlabroot);',char(13),...
          'edit(str);',char(13), 'addpath(matlabroot);',char(13),'Matlab_extendEditorFunctionality(true);']);
      fclose(fid);
  else
      warning('off')
      rmpath(matlabroot);
      delete(fullfile(matlabroot,'edit.m'))
      warning('on')
  end

[Andreas Justin]

I've posted it in the fileXChange section http://www.mathworks.de/matlabcentral/fileexchange/41099-extend-matlab-editors-and-command-window-callback

Answer 1

[Andreas Justin]

      function Matlab_extendEditorFunctionality(activateFlg)
      %#ok<*NASGU>
      %#ok<*AGROW>
      %%--------------------------------------------------------------------------------------------
      if nargin < 1 || isempty(activateFlg)
          activateFlg = false;
          activateFlg = true;
      end
      %%--------------------------------------------------------------------------------------------
      jMainPane = [];
      jEditor = com.mathworks.mde.desk.MLDesktop.getInstance.getGroupContainer('Editor');
      for childIdx = 1 : jEditor.getComponentCount
          componentClassName = regexprep(jEditor.getComponent(childIdx-1).class,'.*\.','');
          if any(strcmp(componentClassName,{'DTMaximizedPane','DTFloatingPane','DTTiledPane'}))
              jMainPane = jEditor.getComponent(childIdx-1);
              break;
          end
      end
      if isa(jMainPane,'com.mathworks.mwswing.desk.DTFloatingPane')
          jMainPane = jMainPane.getComponent(0);  % a com.mathworks.mwswing.desk.DTFloatingPane$2 object
      end

      for jj = 1:jMainPane.getComponentCount
          hEditorPane = [];
          jSyntaxTextPaneView = getDescendent(jMainPane.getComponent(jj-1),[0,0,1,0,0,0,0]);
          if isa(jSyntaxTextPaneView,'com.mathworks.widgets.SyntaxTextPaneMultiView$1')
              hEditorPane(1) = handle(getDescendent(jSyntaxTextPaneView.getComponent(1),[1,0,0]),'CallbackProperties');
              hEditorPane(2) = handle(getDescendent(jSyntaxTextPaneView.getComponent(2),[1,0,0]),'CallbackProperties');
          else
              jEditorPane = getDescendent(jSyntaxTextPaneView,[1,0,0]);
              hEditorPane = handle(jEditorPane,'CallbackProperties');
          end

          if activateFlg
              set(hEditorPane ,'KeyTypedCallback',@(src,evnt)Editor_KeyTypedCallback(src,evnt))
          else
              set(hEditorPane ,'KeyTypedCallback','')
          end
          hEditorPaneArray(jj) = hEditorPane; 
      end

      function child = getDescendent(child,listOfChildrenIdx)
      if ~isempty(listOfChildrenIdx)
          child = getDescendent(child.getComponent(listOfChildrenIdx(1)),listOfChildrenIdx(2:end));
      end

      function Editor_KeyTypedCallback(~,evnt, varargin)
      keyPress = get(evnt,'keyChar');
      if strcmp(keyPress,'(') || strcmp(keyPress,'"') || ...
         strcmp(keyPress,'[') || strcmp(keyPress,'''') || ...
         strcmp(keyPress,'{')

          aE = matlab.desktop.editor.getActive;
          pos = aE.Selection;
          switch keyPress
              case '('
                  putIn = ')';
              case '"'
                  putIn = '"';
              case '['
                  putIn = ']';
              case '{'
                  putIn = '}';
              case ''''
                  putIn = '''';
          end

          cursorPos = matlab.desktop.editor.positionInLineToIndex(aE, pos(1),pos(2));
          % MyFunction(Input1,input2) if you missed a '(' it disables the auto input otherwise you would have to delete the
          % closing bracket.
          if any(strcmp(aE.Text(cursorPos-1),{'(','[','{','''','"'})) && ...
              ~isempty(regexp(aE.Text(cursorPos),['(\s|',char(13),')'],'match'))
          else
              putIn = '';
          end
          aE.insertTextAtPositionInLine(putIn,pos(1),pos(2));
          aE.goToPositionInLine(pos(1),pos(2));
      end

Answer 2

[Andreas Justin]

it's nearly that what i want. it works with this code below (at least on Matlab 8)

i used some functios of Yair Altmans editor macro to get the hEditorPane: http://UndocumentedMatlab.com/blog/EditorMacro/

ToDo:

• apply on all opened Editor
• run at startup -> solution startup doc
• apply on newly opened edtiors -> solution? edit edit function
• EDIT: { on active editor (file) }

function  hEditorPane = getEditor
  jEditor = com.mathworks.mde.desk.MLDesktop.getInstance.getGroupContainer('Editor');
  jMainPane = [];
  for childIdx = 1 : jEditor.getComponentCount
      componentClassName = regexprep(jEditor.getComponent(childIdx-1).class,'.*\.','');
      if any(strcmp(componentClassName,{'DTMaximizedPane','DTFloatingPane','DTTiledPane'}))
          jMainPane = jEditor.getComponent(childIdx-1);
          break;
      end
  end
  if isa(jMainPane,'com.mathworks.mwswing.desk.DTFloatingPane')
      jMainPane = jMainPane.getComponent(0);  % a com.mathworks.mwswing.desk.DTFloatingPane$2 object
  end
  hEditorPane = [];

    jSyntaxTextPaneView = getDescendent(jMainPane.getComponent(0),[0,0,1,0,0,0,0]);
    if isa(jSyntaxTextPaneView,'com.mathworks.widgets.SyntaxTextPaneMultiView$1')
        hEditorPane(1) = handle(getDescendent(jSyntaxTextPaneView.getComponent(1),[1,0,0]),'CallbackProperties');
        hEditorPane(2) = handle(getDescendent(jSyntaxTextPaneView.getComponent(2),[1,0,0]),'CallbackProperties');
    else
        jEditorPane = getDescendent(jSyntaxTextPaneView,[1,0,0]);
        hEditorPane = handle(jEditorPane,'CallbackProperties');
    end

    function child = getDescendent(child,listOfChildrenIdx)
    if ~isempty(listOfChildrenIdx)
        child = getDescendent(child.getComponent(listOfChildrenIdx(1)),listOfChildrenIdx(2:end));
    end

%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

    set(hEditorPane ,'KeyTypedCallback',@(src,evnt)doSth_FUNCTION(src,evnt))

[Andreas Justin]

function  hEditorPaneArray = getEditor
% desktop = com.mathworks.mde.desk.MLDesktop.getInstance;
% jEditor = desktop.getGroupContainer('Editor').getTopLevelAncestor;
% jEditor.uiinspect
% clientTitles = desktop.getClientTitles;
% for ii = 1:numel(clientTitles)
%     editorHandles{ii,1} = char(clientTitles(ii));
% end
% editorHandles(~Aid_SearchCell(editorHandles,'D\:\\')) = [];
% for ii = 1:numel(editorHandles)
%     ed = desktop.getClient(editorHandles{ii});
%     xEdView = ed.getComponent(0).getComponent(0)%  getViewport.getComponent(0)
%     h_ed = handle(xEdView,'CallbackProperties');
%     set(h_ed, 'MouseEnteredCallback', {@disp,1});
% %     set(h_cw, 'KeyPressedCallback', {@MyMatlabFunction,extraParam1}); %alternative
% end
% 
% % You were fairly close:
% mde = com.mathworks.mde.desk.MLDesktop.getInstance;
% cw = mde.getClient('Command Window');
% xCmdWndView = cw.getComponent(0).getViewport.getComponent(0);
% h_cw = handle(xCmdWndView,'CallbackProperties');
% set(h_cw, 'KeyPressedCallback', @test1);
% set(h_cw, 'KeyPressedCallback', '');
% set(h_cw, 'KeyPressedCallback', {@MyMatlabFunction,extraParam1}...}); %alternative

% aE = matlab.desktop.editor.getAll;
% filenames = {aE.Filename}';
% aE.close
% for ii = 1:numel(filenames)
%     edit(filenames{ii})
% end
jMainPane = [];

edit(aE(ii).Filename)
jEditor = com.mathworks.mde.desk.MLDesktop.getInstance.getGroupContainer('Editor');
for childIdx = 1 : jEditor.getComponentCount
    componentClassName = regexprep(jEditor.getComponent(childIdx-1).class,'.*\.','');
    if any(strcmp(componentClassName,{'DTMaximizedPane','DTFloatingPane','DTTiledPane'}))
        jMainPane = jEditor.getComponent(childIdx-1);
        break;
    end
end
if isa(jMainPane,'com.mathworks.mwswing.desk.DTFloatingPane')
    jMainPane = jMainPane.getComponent(0);  % a com.mathworks.mwswing.desk.DTFloatingPane$2 object
end

for jj = 1:jMainPane.getComponentCount
    hEditorPane = [];
    jSyntaxTextPaneView = getDescendent(jMainPane.getComponent(jj-1),[0,0,1,0,0,0,0]);
    if isa(jSyntaxTextPaneView,'com.mathworks.widgets.SyntaxTextPaneMultiView$1')
        hEditorPane(1) = handle(getDescendent(jSyntaxTextPaneView.getComponent(1),[1,0,0]),'CallbackProperties');
        hEditorPane(2) = handle(getDescendent(jSyntaxTextPaneView.getComponent(2),[1,0,0]),'CallbackProperties');
    else
        jEditorPane = getDescendent(jSyntaxTextPaneView,[1,0,0]);
        hEditorPane = handle(jEditorPane,'CallbackProperties');
    end

      %set(hEditorPane ,'KeyTypedCallback',@(src,evnt)disp(1))
      hEditorPaneArray(jj) = hEditorPane;
  end

function child = getDescendent(child,listOfChildrenIdx)
if ~isempty(listOfChildrenIdx)
    child = getDescendent(child.getComponent(listOfChildrenIdx(1)),listOfChildrenIdx(2:end));
end