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Class PanningTool

Hierarchy

The PanningTool supports manual panning, where the user can shift the Diagram.position by dragging the mouse.

This tool is a standard mouse-move tool, the ToolManager.panningTool. Although the ToolManager.dragSelectingTool takes precedence over this tool, the DragSelectingTool only starts if there is a delay after a mouse-down event. If it does not start, then this PanningTool gets a chance to start.

This tool does not utilize any Adornments or tool handles. This tool does not modify the model or conduct any transaction.

Index

Constructors

constructor

Properties

bubbles : boolean

  • Gets or sets whether panning actions will allow events to bubble instead of panning in the diagram.

    Set this to true to allow mobile devices to scroll the page with panning gestures on the diagram. Otherwise, the panning events will be captured and used to pan inside of the diagram.

    The default value is false.

Read-only originalPosition : Point

  • This read-only property returns the Point that was the original value of Diagram.position when the panning operation started.

    since

    1.1

Methods

Virtual Override canStart

  • canStart(): boolean
  • This tool can run when the diagram allows scrolling and the mouse has been dragged with the left button far enough away from the mouse-down point to avoid being a click.

    This method may be overridden. Please read the Introduction page on Extensions for how to override methods and how to call this base method.

    Returns boolean

Override doActivate

  • doActivate(): void
  • Capture the mouse, change the diagram cursor to "move", and remember the Diagram.position.

    Returns void

Override doCancel

  • doCancel(): void
  • Restore the Diagram.position to what it was when this tool activated.

    Returns void

Override doDeactivate

  • doDeactivate(): void
  • Release the mouse and restore the default diagram cursor.

    Returns void

Override doMouseMove

  • doMouseMove(): void
  • Modify the Diagram.position according to how much the mouse has moved.

    Returns void

Override doMouseUp

  • doMouseUp(): void
  • Modify the Diagram.position according to how much the mouse has moved.

    Returns void