ilog.views.gantt.graphic.interactor

Class IlvGanttCycleSelectAccelerator

java.lang.Object

ilog.views.IlvAccelerator

ilog.views.accelerator.IlvCycleSelectAccelerator

ilog.views.gantt.graphic.interactor.IlvGanttCycleSelectAccelerator

All Implemented Interfaces:

Serializable

public class IlvGanttCycleSelectAccelerator
extends IlvCycleSelectAccelerator

IlvGanttCycleSelectAccelerator allows the user to traverse and select the objects in an IlvGanttSheet using the keyboard. At each specified key event, selection traverses to the next object. After the last object, the first object is selected again. The accelerator has options that determine whether the following types of objects will be traversed and selected

• Nodes: Determines whether activity graphics and reservation graphics will be selected. Nodes are selected by default.
• Links: Determines whether constraints will be selected. Links are not selected by default.

Example

The following code example shows how to use IlvGanttCycleSelectAccelerator in a simple Java application:

  // Ensure that the Gantt sheet is focusable and receives the key events.
  ganttSheet.setFocusable(true);
  ganttSheet.setFocusTraversalKeysEnabled(false);
  // Install the accelerator
  ganttSheet.addAccelerator(new IlvGanttCycleSelectAccelerator(KeyEvent.KEY_PRESSED,
                                                               KeyEvent.VK_TAB,
                                                               0,
                                                               true));
 

Since:

JViews 8.8

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	IlvGanttCycleSelectAccelerator.GraphicComparator GraphicComparator defines the default selection traversal ordering across the objects in an IlvGanttSheet: The ordering among activity and reservation graphics is: Graphics are first ordered by row number.

Constructor Summary

Constructors

Constructor and Description
IlvGanttCycleSelectAccelerator(KeyStroke keystroke, boolean consumeEvents) Creates an IlvGanttCycleSelectAccelerator associated with the specified key stroke.

Method Summary

Modifier and Type	Method and Description
protected void	ensureVisible(IlvGraphic selectedGraphic, IlvGanttSheet ganttSheet) Scrolls the Gantt sheet if necessary to ensure that the selected graphic is visible to the user.
protected boolean	handleEvent(IlvManagerView v) Processes the event.

Methods inherited from class ilog.views.accelerator.IlvCycleSelectAccelerator

endOfSequence, getComparator, getNext, isDescendIntoExpandedSubgraphsAllowed, isEnsureVisible, isForward, isSelectable, isSelectExpandedSubgraphsAllowed, isSelectLinksAllowed, isSelectNodesAllowed, isSelectNonNodesOrLinksAllowed, setComparator, setDescendIntoExpandedSubgraphsAllowed, setEnsureVisible, setForward, setSelectExpandedSubgraphsAllowed, setSelectLinksAllowed, setSelectNodesAllowed, setSelectNonNodesOrLinksAllowed

Methods inherited from class ilog.views.IlvAccelerator

CtrlChar, getEventType, getKeyChar, getKeyCode, getModifier, isConsumeEvents, setConsumeEvents

Methods inherited from class java.lang.Object

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

Constructor Detail

IlvGanttCycleSelectAccelerator

public IlvGanttCycleSelectAccelerator(KeyStroke keystroke,
                                      boolean consumeEvents)

Creates an IlvGanttCycleSelectAccelerator associated with the specified key stroke.

Parameters:

keystroke - The key stroke associated with the accelerator.

consumeEvents - If true, the accelerator handles and consumes the event, except when the consume flag of the event is already set to true. If false, the accelerator ignores the event's consume flag, and handles all events without changing the consume flag.

Method Detail

handleEvent

protected boolean handleEvent(IlvManagerView v)

Processes the event.

Overrides:

handleEvent in class IlvCycleSelectAccelerator

Parameters:

v - The Gantt sheet.

Returns:

Whether the processing was successful.

ensureVisible

protected void ensureVisible(IlvGraphic selectedGraphic,
                             IlvGanttSheet ganttSheet)

Scrolls the Gantt sheet if necessary to ensure that the selected graphic is visible to the user. This method calls IlvGanttSheet.ensureVisible(IlvGraphic, int).

Parameters:

selectedGraphic - The selected graphic.

ganttSheet - The Gantt sheet containing the graphic.