TGTextEditor

Class Description

                                                                      
  TGTextEditor                                                        
                                                                      
  A simple text editor that uses the TGTextEdit widget.               
  It provides all functionalities of TGTextEdit as copy, paste, cut,  
  search, go to a given line number. In addition, it provides the     
  possibilities for compiling, executing or interrupting a running    
  macro.                                                              
                                                                      
  This class can be used in following ways:                           
  - with file name as argument:                                       
    new TGTextEditor("hsimple.C");                                    
  - with a TMacro* as argument:                                       
    TMacro *macro = new TMacro("hsimple.C");                          
    new TGTextEditor(macro);                                          
                                                                      
  Basic Features:                                                     
                                                                      
  New Document                                                        
                                                                      
  To create a new blank document, select File menu / New, or click    
  the New toolbar button. It will create a new instance of            
  TGTextEditor.                                                       
                                                                      
  Open/Save File                                                      
                                                                      
  To open a file, select File menu / Open or click on the Open        
  toolbar button. This will bring up the standard File Dialog for     
  opening files.                                                      
  If the current document has not been saved yet, you will be asked   
  either to save or abandon the changes.                              
  To save the file using the same name, select File menu / Save or    
  the toolbar Save button. To change the file name use File menu /    
  Save As... or corresponding SaveAs button on the toolbar.           
                                                                      
  Text Selection                                                      
                                                                      
  You can move the cursor by simply clicking on the desired location  
  with the left mouse button. To highlight some text, press the mouse 
  and drag the mouse while holding the left button pressed.           
  To select a word, double-click on it;                               
  to select the text line - triple-click on it;                       
  to select all  do quadruple-click.                                  
                                                                      
  Cut, Copy, Paste                                                    
                                                                      
  After selecting some text, you can cut or copy it to the clipboard. 
  A subsequent paste operation will insert the contents of the        
  clipboard at the current cursor location.                           
                                                                      
  Text Search                                                         
                                                                      
  The editor uses a standard Search dialog. You can specify a forward 
  or backward search direction starting from the current cursor       
  location according to the selection made of a case sensitive mode   
  or not. The last search can be repeated by pressing F3.             
                                                                      
  Text Font                                                           
                                                                      
  You can change the text font by selecting Edit menu / Set Font.     
  The Font Dialog pops up and shows the Name, Style, and Size of any  
  available font. The selected font sample is shown in the preview    
  area.                                                               
                                                                      
  Executing Macros                                                    
                                                                      
  You can execute the currently loaded macro in the editor by         
  selecting Tools menu / Execute Macro; by clicking on the            
  corresponding toolbar button, or by using Ctrl+F5 accelerator keys. 
  This is identical to the command ".x macro.C" in the root prompt    
  command line.                                                       
                                                                      
  Compiling Macros                                                    
                                                                      
  The currently loaded macro can be compiled with ACLiC if you select 
  Tools menu / Compile Macro; by clicking on the corresponding        
  toolbar button, or by using Ctrl+F7 accelerator keys.               
  This is identical to the command ".L macro.C++" in the root prompt  
  command line.                                                       
                                                                      
  Interrupting a Running Macro                                        
                                                                      
  You can interrupt a running macro by selecting the Tools menu /     
  Interrupt; by clicking on the corresponding toolbar button, or by   
  using Shift+F5 accelerator keys.                                    
                                                                      
  Interface to CINT Interpreter                                       
                                                                      
  Any command entered in the Command combo box will be passed to      
  the CINT interpreter. This combo box will keep the commands history 
  and will allow you to re-execute the same commands during an editor 
  session.                                                            
                                                                      
  Keyboard Bindings                                                   
                                                                      
  The following table lists the keyboard shortcuts and accelerator    
  keys.                                                               
                                                                      
  Key:              Action:                                           
  ====              =======                                           
                                                                      
  Up                Move cursor up.                                   
  Shift+Up          Move cursor up and extend selection.              
  Down              Move cursor down.                                 
  Shift+Down        Move cursor down and extend selection.            
  Left              Move cursor left.                                 
  Shift+Left        Move cursor left and extend selection.            
  Right             Move cursor right.                                
  Shift+Right       Move cursor right and extend selection.           
  Home              Move cursor to begin of line.                     
  Shift+Home        Move cursor to begin of line and extend selection.
  Ctrl+Home         Move cursor to top of page.                       
  End               Move cursor to end of line.                       
  Shift+End         Move cursor to end of line and extend selection.  
  Ctrl+End          Move cursor to end of page.                       
  PgUp              Move cursor up one page.                          
  Shift+PgUp        Move cursor up one page and extend selection.     
  PgDn              Move cursor down one page.                        
  Shift+PgDn        Move cursor down one page and extend selection.   
  Delete            Delete character after cursor, or text selection. 
  BackSpace         Delete character before cursor, or text selection.
  Ctrl+B            Move cursor left.                                 
  Ctrl+D            Delete character after cursor, or text selection. 
  Ctrl+E            Move cursor to end of line.                       
  Ctrl+H            Delete character before cursor, or text selection.
  Ctrl+K            Delete characters from current position to the    
                    end of line.                                      
  Ctrl+U            Delete current line.