Class ZoomInAction

java.lang.Object
docking.action.DockingAction
docking.widgets.imagepanel.actions.ZoomInAction
All Implemented Interfaces:
DockingActionIf, HelpDescriptor

public class ZoomInAction extends DockingAction
An action to zoom the image on a NavigableImagePanel.
  • Field Details

    • imagePanel

      protected final ImagePanel imagePanel
  • Constructor Details

  • Method Details

    • isEnabledForContext

      public boolean isEnabledForContext(ActionContext context)
      Description copied from interface: DockingActionIf
      Method used to determine if this action should be enabled for the given context.

      This is the method implementors override to control when the action may be used.

      This method will be called by the DockingWindowManager for actions on the global menuBar and toolBar and for actions that have a keyBinding.

      This method will be called whenever one of the following events occur:

      1. when the user invokes the action via its keyBinding,
      2. the user changes focus from one component provider to another,
      3. the user moves a component to another position in the window or into another window,
      4. a component provider reports a change in it's context,
      5. any plugin or software component reports a general change in context (calls the tool.contextChanged(ComponentProvider) with a null parameter).
      The default implementation will simply return this action's enablement state.
      Specified by:
      isEnabledForContext in interface DockingActionIf
      Parameters:
      context - the current ActionContext for the window.
      Returns:
      true if the action should be enabled for the context or false otherwise.
    • actionPerformed

      public void actionPerformed(ActionContext context)
      Description copied from interface: DockingActionIf
      method to actually perform the action logic for this action.
      Specified by:
      actionPerformed in interface DockingActionIf
      Specified by:
      actionPerformed in class DockingAction
      Parameters:
      context - the ActionContext object that provides information about where and how this action was invoked.