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package test.action; |
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import org.netbeans.api.visual.action.ActionFactory; |
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import org.netbeans.api.visual.action.ContiguousSelectEvent; |
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import org.netbeans.api.visual.action.ContiguousSelectProvider; |
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import org.netbeans.api.visual.action.WidgetAction; |
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import org.netbeans.api.visual.model.ObjectScene; |
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import org.netbeans.api.visual.widget.general.ListItemWidget; |
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import org.netbeans.api.visual.widget.general.ListWidget; |
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import test.SceneSupport; |
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import java.util.Collections; |
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import java.util.HashSet; |
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/** |
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* @author David Kaspar |
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*/ |
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public class ContiguousSelectActionTest extends ObjectScene { |
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public ContiguousSelectActionTest () { |
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ListWidget list = new ListWidget (this); |
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list.setLabel ("List of selectable items"); |
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addChild (list); |
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WidgetAction contiguousSelectAction = ActionFactory.createContiguousAction (new MyContiguousSelectProvider ()); |
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for (int a = 0; a < 10; a ++) { |
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String item = "Item no. " + a; |
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ListItemWidget itemWidget = new ListItemWidget (this); |
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itemWidget.setLabel (item); |
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itemWidget.getActions ().addAction (createObjectHoverAction ()); |
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itemWidget.getActions ().addAction (contiguousSelectAction); |
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list.addChild (itemWidget); |
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addObject (a, itemWidget); |
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} |
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} |
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public static void main (String[] args) { |
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SceneSupport.show (new ContiguousSelectActionTest ()); |
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} |
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private class MyContiguousSelectProvider implements ContiguousSelectProvider { |
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public boolean isSelectionAllowed (ContiguousSelectEvent event) { |
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return true; |
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} |
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public void select (ContiguousSelectEvent event) { |
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Object previous = findObject (event.getPreviouslyChoosenWidget ()); |
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Object last = findObject (event.getChoosenWidget ()); |
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switch (event.getSelectionType ()) { |
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case ADDITIVE_CONTIGUOUS: |
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if (last != null) { |
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HashSet<Object> set = collectContiguousObjects ((Integer) (previous != null ? previous : last), (Integer) last); |
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set.addAll (getSelectedObjects ()); |
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userSelectionSuggested (set, false); |
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} |
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break; |
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case ADDITIVE_NON_CONTIGUOUS: |
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if (last != null) { |
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HashSet<Object> set = new HashSet<Object> (getSelectedObjects ()); |
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set.add (last); |
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userSelectionSuggested (set, false); |
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} |
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break; |
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case REPLACE_CONTIGUOUS: |
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HashSet<Object> set = collectContiguousObjects ((Integer) (previous != null ? previous : last), (Integer) last); |
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userSelectionSuggested (set, false); |
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break; |
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case REPLACE_NON_CONTIGUOUS: |
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userSelectionSuggested (Collections.singleton (last), false); |
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break; |
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} |
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} |
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private HashSet<Object> collectContiguousObjects (int first, int last) { |
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int max = Math.max (first, last); |
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HashSet<Object> set = new HashSet<Object> (); |
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for (int i = Math.min (first, last); i <= max; i ++) { |
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set.add (i); |
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} |
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return set; |
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} |
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} |
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} |