The Qt Undo-Redo Framework component is an undo/redo framework based on the Command design pattern.

This framework allows developers to easily implement multiplatform undo/redo functionality in their applications.

This Qt Solutions component is for Qt 4. For Qt 3 Solutions, please visit the Qt 3 Solutions Catalog.

Documentation:

Overview

• Undo-Redo Framework

• QtCommand
• QtUndoStack
• QtUndoManager
• QtUndoListBox

• Art Editor Example

Tested on:

• Qt 4.1.3 / Windows XP / MSVC.NET 2003
• Qt 4.1.3 / Windows XP / MSVC.NET 2005
• Qt 4.1.3 / Linux / gcc
• Qt 4.1.3 / SunOS 5.9 / SunC++
• Qt 4.1.3 / MacOS X 10.4 / gcc

Unsupported platforms:

Only the tested platforms are supported, however the classes should be platform independent and are likely to work on the platforms supported by Qt.

Download Commercial Edition:

• qtundo-2.2-commercial.zip
• qtundo-2.2-commercial.tar.gz

Changes:

• 2.2: Fixed QtUndoStack::clear().
• 2.2: Fixed text inconsistency between actions created from QtUndoStack and from QtUndoManager.
• 2.2: The .dcf doc file is now provided.
• 2.1: Size limitation of undo stack now works.
• 2.1: Fix possible crash after clear().
• 2.0: Latest version ported to Qt 4.0