class TGTextEditor: public TGMainFrame

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.