public SetTextCommand(String text, VideoEditor videoEditor, History history) : base(videoEditor, history) { this.text = text; }
public AbstractUndoableCommand(VideoEditor videoEditor, History history) { this.videoEditor = videoEditor; this.history = history; }
public SetContrastCommand(float contrast, VideoEditor videoEditor, History history) : base(videoEditor, history) { prevContrast = videoEditor.GetContrast(); this.contrast = contrast; }