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A frame-based editor is a specific kind of structure editor, typically used as a source code editor for the manipulation of computer programs. Program elements are represented by frames, which form the standard atomic unit of manipulation in the editor.
Frames in the editor represent nodes in the underlying syntax tree of the language being written, such as simple statements, control structures, or methods, and are manipulated as single entities in the user interface.
The representation of frame-based programs on screen makes use of graphical and textual elements. Most fundamentally, scope is presented by graphical boxes , but other graphical elements, including color and graphical presentation, are also employed. Manipulation of frames in frame-based editors is typically supported equally via mouse-based gestures and keyboard manipulation.