Code Editor application

The JAppEditor class is a simple but complete code Editor.

Features

The application has the following features:

• Opening, saving and creating text files
• Use syntax highlighting for many file types
• Searching in the text
• Cut / Copy, and Paste
• Undo and Redo
• Comparing text content

Application overview

The application has:

• A menu bar
• A tabbed code window. Each tab contains the code for one text file. These windows present a gutter with the line numbers

Menu bar

File menu

The File menu allows to:

• Create a new text file
• Open a text file
• Save or SaveAs a text file

Tools menu

The Tools menu allows to:

• Search for a text in the current text document
• Change the settings of the application
• Install a syntax pack

The search feature in the Code Editor application is accessible by both:

• The toolbar
• The CTRL+F key
• A right click anywhere in the Editor window

Help menu

The Help menu has only an "About" item showing the version of the library.

Contextual actions

• CTRL+V denotes a copy
• CTRL+X denotes a cut
• CTRL+C denotes a paste
• CTRL+A denotes a select all
• CTRL+F is an alternate way to start a search
• CTRL+Z denotes an Undo
• CTRL+Y denotes a Redo

Tabbed text window

The tabbed text window presents one tab for each text file.

Line numbers

By default the gutter showing the line numbers is not visible. To show it, you have to drag the gray line at the left of the text window.

Comparing two text files

It is possible to compare two text files by right-clicking on a tab and selecting the file for which the current file must be compared:

The result will show the two text files side by side and highlights the differences: