diff options
Diffstat (limited to 'jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/swing/ObjectListSelectionModel.java')
-rw-r--r-- | jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/swing/ObjectListSelectionModel.java | 427 |
1 files changed, 0 insertions, 427 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/swing/ObjectListSelectionModel.java b/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/swing/ObjectListSelectionModel.java deleted file mode 100644 index 61d2e3701f..0000000000 --- a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/swing/ObjectListSelectionModel.java +++ /dev/null @@ -1,427 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2007, 2008 Oracle. All rights reserved. - * This program and the accompanying materials are made available under the - * terms of the Eclipse Public License v1.0, which accompanies this distribution - * and is available at http://www.eclipse.org/legal/epl-v10.html. - * - * Contributors: - * Oracle - initial API and implementation - ******************************************************************************/ -package org.eclipse.jpt.utility.internal.model.value.swing; - -import java.util.Arrays; -import java.util.Collection; -import java.util.Iterator; -import javax.swing.DefaultListSelectionModel; -import javax.swing.ListModel; -import javax.swing.event.ListDataEvent; -import javax.swing.event.ListDataListener; -import javax.swing.event.ListSelectionListener; -import org.eclipse.jpt.utility.internal.CollectionTools; - -/** - * This ListSelectionModel is aware of the ListModel and - * provides convenience methods to access and set the - * selected *objects*, as opposed to the selected *indexes*. - */ -public class ObjectListSelectionModel - extends DefaultListSelectionModel -{ - /** The list model referenced by the list selection model. */ - private final ListModel listModel; - - /** A listener that allows us to clear the selection when the list model has changed. */ - private final ListDataListener listDataListener; - - - // ********** constructors ********** - - /** - * Construct a list selection model for the specified list model. - */ - public ObjectListSelectionModel(ListModel listModel) { - super(); - this.listModel = listModel; - this.listDataListener = this.buildListDataListener(); - } - - - // ********** initialization ********** - - private ListDataListener buildListDataListener() { - return new ListDataListener() { - public void intervalAdded(ListDataEvent event) { - // this does not affect the selection - } - public void intervalRemoved(ListDataEvent event) { - // this does not affect the selection - } - public void contentsChanged(ListDataEvent event) { - ObjectListSelectionModel.this.listModelContentsChanged(event); - } - @Override - public String toString() { - return "list data listener"; - } - }; - } - - /** - * Typically, the selection does not need to be cleared when the - * contents of the list have changed. Most of the time this just - * means an item has changed in a way that affects its display string - * or icon. We typically only use the class for edits involving - * single selection. - * A subclass can override this method if the selection - * should be cleared because a change could mean the selection is invalid. - */ - protected void listModelContentsChanged(ListDataEvent event) { - /**this.clearSelection();*/ - } - - - // ********** ListSelectionModel implementation ********** - - @Override - public void addListSelectionListener(ListSelectionListener l) { - if (this.hasNoListSelectionListeners()) { - this.listModel.addListDataListener(this.listDataListener); - } - super.addListSelectionListener(l); - } - - @Override - public void removeListSelectionListener(ListSelectionListener l) { - super.removeListSelectionListener(l); - if (this.hasNoListSelectionListeners()) { - this.listModel.removeListDataListener(this.listDataListener); - } - } - - - // ********** queries ********** - - /** - * Return whether this model has no listeners. - */ - protected boolean hasNoListSelectionListeners() { // private-protected - return this.getListSelectionListeners().length == 0; - } - - /** - * Return the list model referenced by the list selection model. - */ - public ListModel getListModel() { - return this.listModel; - } - - public int selectedValuesSize() { - int min = this.getMinSelectionIndex(); - int max = this.getMaxSelectionIndex(); - - if ((min < 0) || (max < 0)) { - return 0; - } - - int n = 0; - int count = this.getListModel().getSize(); - for (int i = min; i <= max; i++) { - if (this.isSelectedIndex(i) && (i < count)) { - n++; - } - } - return n; - } - - /** - * Return the first selected value. - * Return null if the selection is empty. - */ - public Object selectedValue() { - int index = this.getMinSelectionIndex(); - if (index == -1) { - return null; - } - if (this.getListModel().getSize() <= index) { - return null; - } - return this.getListModel().getElementAt(index); - } - - /** - * Return an array of the selected values. - */ - public Object[] selectedValues() { - int min = this.getMinSelectionIndex(); - int max = this.getMaxSelectionIndex(); - - if ((min < 0) || (max < 0)) { - return new Object[0]; - } - - int maxSize = (max - min) + 1; - Object[] temp = new Object[maxSize]; - int n = 0; - int count = this.getListModel().getSize(); - for (int i = min; i <= max; i++) { - if (this.isSelectedIndex(i) && (i < count)) { - temp[n++] = this.getListModel().getElementAt(i); - } - } - if (n == maxSize) { - // all the elements in the range were selected - return temp; - } - // only some of the elements in the range were selected - Object[] result = new Object[n]; - System.arraycopy(temp, 0, result, 0, n); - return result; - } - - /** - * Return an array of the selected indices in order. - */ - public int[] selectedIndices() { - int min = this.getMinSelectionIndex(); - int max = this.getMaxSelectionIndex(); - - if ((min < 0) || (max < 0)) { - return new int[0]; - } - - int maxSize = (max - min) + 1; - int[] temp = new int[maxSize]; - int n = 0; - int count = this.getListModel().getSize(); - for (int i = min; i <= max; i++) { - if (this.isSelectedIndex(i) && (i < count)) { - temp[n++] = i; - } - } - if (n == maxSize) { - // all the elements in the range were selected - Arrays.sort(temp); - return temp; - } - // only some of the elements in the range were selected - int[] result = new int[n]; - System.arraycopy(temp, 0, result, 0, n); - Arrays.sort(result); - return result; - } - - /** - * Set the selected value. - */ - public void setSelectedValue(Object object) { - this.setSelectedValues(CollectionTools.singletonIterator(object)); - } - - /** - * Set the current set of selected objects to the specified objects. - * @see javax.swing.ListSelectionModel#setSelectionInterval(int, int) - */ - public void setSelectedValues(Iterator<?> objects) { - this.setValueIsAdjusting(true); - this.clearSelection(); - this.addSelectedValuesInternal(objects); - this.setValueIsAdjusting(false); - } - - /** - * Set the current set of selected objects to the specified objects. - * @see javax.swing.ListSelectionModel#setSelectionInterval(int, int) - */ - public void setSelectedValues(Collection<?> objects) { - this.setSelectedValues(objects.iterator()); - } - - /** - * Set the current set of selected objects to the specified objects. - * @see javax.swing.ListSelectionModel#setSelectionInterval(int, int) - */ - public void setSelectedValues(Object[] objects) { - this.setSelectedValues(CollectionTools.iterator(objects)); - } - - /** - * Add the specified object to the current set of selected objects. - * @see javax.swing.ListSelectionModel#addSelectionInterval(int, int) - */ - public void addSelectedValue(Object object) { - this.addSelectedValues(CollectionTools.singletonIterator(object)); - } - - /** - * Add the specified objects to the current set of selected objects. - * @see javax.swing.ListSelectionModel#addSelectionInterval(int, int) - */ - public void addSelectedValues(Iterator<?> objects) { - this.setValueIsAdjusting(true); - this.addSelectedValuesInternal(objects); - this.setValueIsAdjusting(false); - } - - /** - * Add the specified objects to the current set of selected objects. - * @see javax.swing.ListSelectionModel#addSelectionInterval(int, int) - */ - public void addSelectedValues(Collection<?> objects) { - this.addSelectedValues(objects.iterator()); - } - - /** - * Add the specified objects to the current set of selected objects. - * @see javax.swing.ListSelectionModel#addSelectionInterval(int, int) - */ - public void addSelectedValues(Object[] objects) { - this.addSelectedValues(CollectionTools.iterator(objects)); - } - - /** - * Remove the specified object from the current set of selected objects. - * @see javax.swing.ListSelectionModel#removeSelectionInterval(int, int) - */ - public void removeSelectedValue(Object object) { - this.removeSelectedValues(CollectionTools.singletonIterator(object)); - } - - /** - * Remove the specified objects from the current set of selected objects. - * @see javax.swing.ListSelectionModel#removeSelectionInterval(int, int) - */ - public void removeSelectedValues(Iterator<?> objects) { - this.setValueIsAdjusting(true); - ListModel lm = this.getListModel(); - int lmSize = lm.getSize(); - while (objects.hasNext()) { - int index = this.indexOf(objects.next(), lm, lmSize); - this.removeSelectionInterval(index, index); - } - this.setValueIsAdjusting(false); - } - - /** - * Remove the specified objects from the current set of selected objects. - * @see javax.swing.ListSelectionModel#removeSelectionInterval(int, int) - */ - public void removeSelectedValues(Collection<?> objects) { - this.removeSelectedValues(objects.iterator()); - } - - /** - * Remove the specified objects from the current set of selected objects. - * @see javax.swing.ListSelectionModel#removeSelectionInterval(int, int) - */ - public void removeSelectedValues(Object[] objects) { - this.removeSelectedValues(CollectionTools.iterator(objects)); - } - - /** - * @see javax.swing.ListSelectionModel#getAnchorSelectionIndex() - * Return null if the anchor selection is empty. - */ - public Object getAnchorSelectedValue() { - int index = this.getAnchorSelectionIndex(); - if (index == -1) { - return null; - } - return this.getListModel().getElementAt(index); - } - - /** - * @see javax.swing.ListSelectionModel#setAnchorSelectionIndex(int) - */ - public void setAnchorSelectedValue(Object object) { - this.setAnchorSelectionIndex(this.indexOf(object)); - } - - /** - * @see javax.swing.ListSelectionModel#getLeadSelectionIndex() - * Return null if the lead selection is empty. - */ - public Object getLeadSelectedValue() { - int index = this.getLeadSelectionIndex(); - if (index == -1) { - return null; - } - return this.getListModel().getElementAt(index); - } - - /** - * @see javax.swing.ListSelectionModel#setLeadSelectionIndex(int) - */ - public void setLeadSelectedValue(Object object) { - this.setLeadSelectionIndex(this.indexOf(object)); - } - - /** - * @see javax.swing.ListSelectionModel#getMaxSelectionIndex() - * Return null if the max selection is empty. - */ - public Object getMaxSelectedValue() { - int index = this.getMaxSelectionIndex(); - if (index == -1) { - return null; - } - return this.getListModel().getElementAt(index); - } - - /** - * @see javax.swing.ListSelectionModel#getMinSelectionIndex() - * Return null if the min selection is empty. - */ - public Object getMinSelectedValue() { - int index = this.getMinSelectionIndex(); - if (index == -1) { - return null; - } - return this.getListModel().getElementAt(index); - } - - /** - * @see javax.swing.ListSelectionModel#isSelectedIndex(int) - */ - public boolean valueIsSelected(Object object) { - return this.isSelectedIndex(this.indexOf(object)); - } - - /** - * Add the specified objects to the current set of selected objects, - * without wrapping the actions in "adjusting" events. - */ - private void addSelectedValuesInternal(Iterator<?> objects) { - ListModel lm = this.getListModel(); - int listModelSize = lm.getSize(); - while (objects.hasNext()) { - int index = this.indexOf(objects.next(), lm, listModelSize); - this.addSelectionInterval(index, index); - } - } - - /** - * Return the index in the list model of the specified object. - * Return -1 if the object is not in the list model. - */ - private int indexOf(Object object) { - ListModel lm = this.getListModel(); - return this.indexOf(object, lm, lm.getSize()); - } - - /** - * Return the index in the list model of the specified object. - * Return -1 if the object is not in the list model. - */ - // we're just jerking around with performance optimizations here - // (in memory of Phil...); - // call this method inside loops that do not modify the listModel - private int indexOf(Object object, ListModel lm, int listModelSize) { - for (int i = listModelSize; i-- > 0; ) { - if (lm.getElementAt(i) == object) { - return i; - } - } - return -1; - } - -} |