Package org.eclipse.graphiti.ui.internal.util.gef

Class ZoomManagerWithAnimation

java.lang.Object
org.eclipse.draw2d.zoom.AbstractZoomManager
org.eclipse.gef.editparts.ZoomManager
org.eclipse.graphiti.ui.internal.util.gef.ZoomManagerWithAnimation
public class ZoomManagerWithAnimation extends org.eclipse.gef.editparts.ZoomManager
Enhances the default ZoomManager by animating the change of the zoom. This is done by implicitly replacing every change of the zoom by a sequence of changes, which range from the old zoom to the new zoom.

  • Field Summary

    Fields inherited from class org.eclipse.gef.editparts.ZoomManager

    FIT_ALL, FIT_HEIGHT, FIT_WIDTH

    Fields inherited from class org.eclipse.draw2d.zoom.AbstractZoomManager

    ANIMATE_NEVER, ANIMATE_ZOOM_IN_OUT

  • Constructor Summary

    Constructors
    Constructor
    Description
    ZoomManagerWithAnimation(org.eclipse.draw2d.ScalableFigure pane, org.eclipse.draw2d.Viewport viewport, org.eclipse.gef.ui.parts.ScrollingGraphicalViewer viewer)
    Creates a new ZoomManagerWithAnimation.

  • Method Summary

    Modifier and Type
    Method
    Description
    protected double
    getFitHeightZoomLevel()
    Returns the zoomLevel needed so that the diagram shapes fit vertically on the screen.
    protected double
    getFitPageZoomLevel()
    Returns the zoomLevel needed so that the diagram shapes fit on the screen.
    protected double
    getFitWidthZoomLevel()
    Returns the zoomLevel needed so that the diagram shapes fit horizontally on the screen.
    int
    getTotalSteps()
    Returns the total number of steps.
    protected void
    primSetZoom(double zoom)
    Sets many zoom-levels to create the animation-effect.
    void
    stepPerformed()
    Is called after each performed step.

    Methods inherited from class org.eclipse.gef.editparts.ZoomManager

    addZoomListener, getPane, isFitAll, isFitHeight, isFitWidth, removeZoomListener

    Methods inherited from class org.eclipse.draw2d.zoom.AbstractZoomManager

    addZoomListener, canZoomIn, canZoomOut, fireZoomChanged, getMaxZoom, getMinZoom, getNextZoomLevel, getPreviousZoomLevel, getScalableFigure, getUIMultiplier, getViewport, getZoom, getZoomAsText, getZoomLevelContributions, getZoomLevels, getZoomLevelsAsText, removeZoomListener, setScrollPolicy, setUIMultiplier, setViewLocation, setZoom, setZoomAnimationStyle, setZoomAsText, setZoomLevelContributions, setZoomLevels, zoomIn, zoomOut, zoomTo

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • ZoomManagerWithAnimation

      public ZoomManagerWithAnimation(org.eclipse.draw2d.ScalableFigure pane, org.eclipse.draw2d.Viewport viewport, org.eclipse.gef.ui.parts.ScrollingGraphicalViewer viewer)
      Creates a new ZoomManagerWithAnimation.

  • Method Details

    • primSetZoom

      protected void primSetZoom(double zoom)
      Sets many zoom-levels to create the animation-effect.
      Overrides:
      primSetZoom in class org.eclipse.draw2d.zoom.AbstractZoomManager
      See Also:
      • AbstractZoomManager.primSetZoom(double)

    • getFitPageZoomLevel

      protected double getFitPageZoomLevel()
      Returns the zoomLevel needed so that the diagram shapes fit on the screen. In order to calculate the correct size, the invisible corner pixels which we need to have the scroll bars always present, are removed and added later again. If this is not the GFFigureCanvas, the corresponding super method is called.
      Overrides:
      getFitPageZoomLevel in class org.eclipse.draw2d.zoom.AbstractZoomManager
      Returns:
      zoom setting required to fit the entire scalable figure on the screen

    • stepPerformed

      public void stepPerformed()
      Is called after each performed step.

      By default it dispatches all pending events of the current Display. This is important, because typically the steps do something which shall be visible to the user. By dispatching the events all updates to the UI will be performed.

    • getTotalSteps

      public int getTotalSteps()
      Returns the total number of steps. Should be called on every execute() and undo(), so that always the last preference-value is used.
      Returns:
      The total number of steps.

    • getFitWidthZoomLevel

      protected double getFitWidthZoomLevel()
      Returns the zoomLevel needed so that the diagram shapes fit horizontally on the screen. In order to calculate the correct size, the invisible corner pixels which we need to have the scroll bars always present, are removed and added later again. If this is not the GFFigureCanvas, the corresponding super method is called.
      Overrides:
      getFitWidthZoomLevel in class org.eclipse.draw2d.zoom.AbstractZoomManager
      Returns:
      zoom setting required to fit the scalable figure horizontally on the screen

    • getFitHeightZoomLevel

      protected double getFitHeightZoomLevel()
      Returns the zoomLevel needed so that the diagram shapes fit vertically on the screen. In order to calculate the correct size, the invisible corner pixels which we need to have the scroll bars always present, are removed and added later again. If this is not the GFFigureCanvas, the corresponding super method is called.
      Overrides:
      getFitHeightZoomLevel in class org.eclipse.draw2d.zoom.AbstractZoomManager
      Returns:
      zoom setting required to fit the scalable figure vertically on the screen