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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/qt/org/eclipse/swt/widgets/List.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/qt/org/eclipse/swt/widgets/List.java | 1380 |
1 files changed, 0 insertions, 1380 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/qt/org/eclipse/swt/widgets/List.java b/bundles/org.eclipse.swt/Eclipse SWT/qt/org/eclipse/swt/widgets/List.java deleted file mode 100644 index db2dfc0a7b..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/qt/org/eclipse/swt/widgets/List.java +++ /dev/null @@ -1,1380 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2008 IBM Corporation and others. - * Portion Copyright (c) 2009-2010 compeople AG (http://www.compeople.de). - * 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: - * IBM Corporation - initial API and implementation - * Compeople AG - QtJambi/Qt based implementation for Windows/Mac OS X/Linux - *******************************************************************************/ -package org.eclipse.swt.widgets; - -import java.util.Arrays; - -import com.trolltech.qt.core.QModelIndex; -import com.trolltech.qt.core.QPoint; -import com.trolltech.qt.core.Qt.DropActions; -import com.trolltech.qt.gui.QDragEnterEvent; -import com.trolltech.qt.gui.QDragLeaveEvent; -import com.trolltech.qt.gui.QDragMoveEvent; -import com.trolltech.qt.gui.QDropEvent; -import com.trolltech.qt.gui.QItemSelection; -import com.trolltech.qt.gui.QListWidget; -import com.trolltech.qt.gui.QListWidgetItem; -import com.trolltech.qt.gui.QWidget; -import com.trolltech.qt.gui.QAbstractItemView.DragDropMode; -import com.trolltech.qt.gui.QAbstractItemView.ScrollHint; -import com.trolltech.qt.gui.QAbstractItemView.SelectionMode; -import com.trolltech.qt.gui.QItemSelectionModel.SelectionFlag; -import com.trolltech.qt.gui.QItemSelectionModel.SelectionFlags; - -import org.eclipse.swt.SWT; -import org.eclipse.swt.SWTException; -import org.eclipse.swt.events.SelectionEvent; -import org.eclipse.swt.events.SelectionListener; - -/** - * Instances of this class represent a selectable user interface object that - * displays a list of strings and issues notification when a string is selected. - * A list may be single or multi select. - * <p> - * <dl> - * <dt><b>Styles:</b></dt> - * <dd>SINGLE, MULTI</dd> - * <dt><b>Events:</b></dt> - * <dd>Selection, DefaultSelection</dd> - * </dl> - * <p> - * Note: Only one of SINGLE and MULTI may be specified. - * </p> - * <p> - * IMPORTANT: This class is <em>not</em> intended to be subclassed. - * </p> - * - * @see <a href="http://www.eclipse.org/swt/snippets/#list">List snippets</a> - * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: - * ControlExample</a> - * @see <a href="http://www.eclipse.org/swt/">Sample code and further - * information</a> - * @noextend This class is not intended to be subclassed by clients. - */ - -public class List extends Scrollable { - /** - * Constructs a new instance of this class given its parent and a style - * value describing its behavior and appearance. - * <p> - * The style value is either one of the style constants defined in class - * <code>SWT</code> which is applicable to instances of this class, or must - * be built by <em>bitwise OR</em>'ing together (that is, using the - * <code>int</code> "|" operator) two or more of those <code>SWT</code> - * style constants. The class description lists the style constants that are - * applicable to the class. Style bits are also inherited from superclasses. - * </p> - * - * @param parent - * a composite control which will be the parent of the new - * instance (cannot be null) - * @param style - * the style of control to construct - * - * @exception IllegalArgumentException - * <ul> - * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> - * </ul> - * @exception SWTException - * <ul> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the parent</li> - * <li>ERROR_INVALID_SUBCLASS - if this class is not an - * allowed subclass</li> - * </ul> - * - * @see SWT#SINGLE - * @see SWT#MULTI - * @see Widget#checkSubclass - * @see Widget#getStyle - */ - public List(Composite parent, int style) { - super(parent, checkStyle(style)); - } - - @Override - protected QWidget createQWidget(int style) { - QListWidget listWidget = new MyListWidget(); - if ((style & SWT.MULTI) != 0) { - listWidget.setSelectionMode(SelectionMode.MultiSelection); - } else { - listWidget.setSelectionMode(SelectionMode.SingleSelection); - } - return listWidget; - } - - @Override - protected void connectSignals() { - getQListWidget().selectionModel().selectionChanged.connect(this, "selectionEvent()");//$NON-NLS-1$ - getQListWidget().itemActivated.connect(this, "itemActivationEvent(QListWidgetItem)");//$NON-NLS-1$ - } - - private QListWidget getQListWidget() { - return (QListWidget) getQWidget(); - } - - protected void selectionEvent() { - sendEvent(SWT.Selection); - } - - protected void itemActivationEvent(QListWidgetItem item) { - sendEvent(SWT.DefaultSelection); - } - - @Override - public void setDragEnabled(boolean enabled) { - getQListWidget().setDragEnabled(enabled); - } - - @Override - public void setAcceptDrops(boolean accept) { - super.setAcceptDrops(accept); - getQListWidget().setDragDropMode(DragDropMode.DragDrop); - getQListWidget().setDropIndicatorShown(true); - } - - /** - * Adds the argument to the end of the receiver's list. - * - * @param string - * the new item - * - * @exception IllegalArgumentException - * <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * </ul> - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - * - * @see #add(String,int) - */ - public void add(String string) { - checkWidget(); - if (string == null) { - error(SWT.ERROR_NULL_ARGUMENT); - } - getQListWidget().addItem(string); - } - - /** - * Adds the argument to the receiver's list at the given zero-relative - * index. - * <p> - * Note: To add an item at the end of the list, use the result of calling - * <code>getItemCount()</code> as the index or use <code>add(String)</code>. - * </p> - * - * @param string - * the new item - * @param index - * the index for the item - * - * @exception IllegalArgumentException - * <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * <li>ERROR_INVALID_RANGE - if the index is not between 0 - * and the number of elements in the list (inclusive)</li> - * </ul> - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - * - * @see #add(String) - */ - public void add(String string, int index) { - checkWidget(); - if (string == null) { - error(SWT.ERROR_NULL_ARGUMENT); - } - validateIndex(index); - getQListWidget().insertItem(index, string); - } - - /** - * Adds the listener to the collection of listeners who will be notified - * when the user changes the receiver's selection, by sending it one of the - * messages defined in the <code>SelectionListener</code> interface. - * <p> - * <code>widgetSelected</code> is called when the selection changes. - * <code>widgetDefaultSelected</code> is typically called when an item is - * double-clicked. - * </p> - * - * @param listener - * the listener which should be notified when the user changes - * the receiver's selection - * - * @exception IllegalArgumentException - * <ul> - * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> - * </ul> - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - * - * @see SelectionListener - * @see #removeSelectionListener - * @see SelectionEvent - */ - public void addSelectionListener(SelectionListener listener) { - checkWidget(); - if (listener == null) { - error(SWT.ERROR_NULL_ARGUMENT); - } - TypedListener typedListener = new TypedListener(listener); - addListener(SWT.Selection, typedListener); - addListener(SWT.DefaultSelection, typedListener); - } - - static int checkStyle(int style) { - return checkBits(style, SWT.SINGLE, SWT.MULTI, 0, 0, 0, 0); - } - - /** - * Deselects the items at the given zero-relative indices in the receiver. - * If the item at the given zero-relative index in the receiver is selected, - * it is deselected. If the item at the index was not selected, it remains - * deselected. Indices that are out of range and duplicate indices are - * ignored. - * - * @param indices - * the array of indices for the items to deselect - * - * @exception IllegalArgumentException - * <ul> - * <li>ERROR_NULL_ARGUMENT - if the set of indices is null</li> - * </ul> - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public void deselect(int[] indices) { - checkWidget(); - if (indices == null) { - error(SWT.ERROR_NULL_ARGUMENT); - } - - updateSelection(indices, new SelectionFlags(SelectionFlag.Deselect)); - } - - private void updateSelection(int[] indices, SelectionFlags selectionFlags) { - int count = getQListWidget().count(); - for (int i = 0; i < indices.length; i++) { - if (indices[i] >= 0 && indices[i] < count) { - updateSelectionRange(indices[i], indices[i], selectionFlags); - } - } - } - - /** - * Deselects the item at the given zero-relative index in the receiver. If - * the item at the index was already deselected, it remains deselected. - * Indices that are out of range are ignored. - * - * @param index - * the index of the item to deselect - * - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public void deselect(int index) { - checkWidget(); - validateIndex(index); - updateSelectionRange(index, index, new SelectionFlags(SelectionFlag.Deselect)); - } - - void validateIndex(int index) { - if (index < 0 || index > getQListWidget().count()) { - SWT.error(SWT.ERROR_INVALID_RANGE); - } - } - - /** - * Deselects the items at the given zero-relative indices in the receiver. - * If the item at the given zero-relative index in the receiver is selected, - * it is deselected. If the item at the index was not selected, it remains - * deselected. The range of the indices is inclusive. Indices that are out - * of range are ignored. - * - * @param start - * the start index of the items to deselect - * @param end - * the end index of the items to deselect - * - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public void deselect(int start, int end) { - checkWidget(); - if (start > end || end < 0) { - return; - } - int count = getQListWidget().count(); - if (start > count - 1) { - return; - } - start = Math.max(0, start); - end = Math.min(end, count - 1); - updateSelectionRange(start, end, new SelectionFlags(SelectionFlag.Deselect)); - } - - void updateSelectionRange(int start, int end, SelectionFlags flags) { - QModelIndex startIndex = getQListWidget().model().index(start, 0); - QModelIndex endIndex = getQListWidget().model().index(end, 0); - QItemSelection itemSelection = new QItemSelection(startIndex, endIndex); - getQListWidget().selectionModel().select(itemSelection, flags); - } - - /** - * Deselects all selected items in the receiver. - * - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public void deselectAll() { - checkWidget(); - getQListWidget().clearSelection(); - } - - /** - * Returns the zero-relative index of the item which currently has the focus - * in the receiver, or -1 if no item has focus. - * - * @return the index of the selected item - * - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public int getFocusIndex() { - checkWidget(); - return getQListWidget().currentRow(); - } - - /** - * Returns the item at the given, zero-relative index in the receiver. - * Throws an exception if the index is out of range. - * - * @param index - * the index of the item to return - * @return the item at the given index - * - * @exception IllegalArgumentException - * <ul> - * <li>ERROR_INVALID_RANGE - if the index is not between 0 - * and the number of elements in the list minus 1 (inclusive) - * </li> - * </ul> - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public String getItem(int index) { - checkWidget(); - validateIndex(index); - return getQListWidget().item(index).text(); - } - - /** - * Returns the number of items contained in the receiver. - * - * @return the number of items - * - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public int getItemCount() { - checkWidget(); - return getQListWidget().count(); - } - - /** - * Returns the height of the area which would be used to display - * <em>one</em> of the items in the list. - * - * @return the height of one item - * - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public int getItemHeight() { - checkWidget(); - int itemHeight = 0; - if (getQListWidget().count() > 0) { - itemHeight = getQListWidget().sizeHintForRow(0); - } else { - // we add a dummy item to get the height - getQListWidget().addItem("");//$NON-NLS-1$ - itemHeight = getQListWidget().sizeHintForRow(0); - _remove(0); - } - return itemHeight; - } - - /** - * Returns a (possibly empty) array of <code>String</code>s which are the - * items in the receiver. - * <p> - * Note: This is not the actual structure used by the receiver to maintain - * its list of items, so modifying the array will not affect the receiver. - * </p> - * - * @return the items in the receiver's list - * - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public String[] getItems() { - checkWidget(); - int count = getItemCount(); - String[] result = new String[count]; - for (int i = 0; i < count; i++) { - result[i] = getItem(i); - } - return result; - } - - /** - * Returns an array of <code>String</code>s that are currently selected in - * the receiver. The order of the items is unspecified. An empty array - * indicates that no items are selected. - * <p> - * Note: This is not the actual structure used by the receiver to maintain - * its selection, so modifying the array will not affect the receiver. - * </p> - * - * @return an array representing the selection - * - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public String[] getSelection() { - checkWidget(); - QListWidget listWidget = getQListWidget(); - java.util.List<QModelIndex> selectedIndices = listWidget.selectionModel().selectedRows(); - String[] sel = new String[selectedIndices.size()]; - int i = 0; - for (QModelIndex index : selectedIndices) { - sel[i] = listWidget.item(index.row()).text(); - i++; - } - return sel; - } - - /** - * Returns the number of selected items contained in the receiver. - * - * @return the number of selected items - * - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public int getSelectionCount() { - checkWidget(); - return getQListWidget().selectionModel().selectedRows().size(); - } - - /** - * Returns the zero-relative index of the item which is currently selected - * in the receiver, or -1 if no item is selected. - * - * @return the index of the selected item or -1 - * - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public int getSelectionIndex() { - checkWidget(); - java.util.List<QModelIndex> selectedIndices = getQListWidget().selectionModel().selectedRows(); - if (selectedIndices != null && selectedIndices.size() > 0) { - return selectedIndices.get(0).row(); - } - return 0; - } - - /** - * Returns the zero-relative indices of the items which are currently - * selected in the receiver. The order of the indices is unspecified. The - * array is empty if no items are selected. - * <p> - * Note: This is not the actual structure used by the receiver to maintain - * its selection, so modifying the array will not affect the receiver. - * </p> - * - * @return the array of indices of the selected items - * - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public int[] getSelectionIndices() { - checkWidget(); - java.util.List<QModelIndex> selection = getQListWidget().selectionModel().selectedRows(); - int[] selIndex = new int[selection.size()]; - int i = 0; - for (QModelIndex index : selection) { - selIndex[i] = index.row(); - i++; - } - return selIndex; - } - - /** - * Returns the zero-relative index of the item which is currently at the top - * of the receiver. This index can change when items are scrolled or new - * items are added or removed. - * - * @return the index of the top item - * - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public int getTopIndex() { - checkWidget(); - QModelIndex modellIndex = getQListWidget().indexAt(new QPoint(1, 1)); - return modellIndex == null ? -1 : modellIndex.row(); - } - - /** - * Gets the index of an item. - * <p> - * The list is searched starting at 0 until an item is found that is equal - * to the search item. If no item is found, -1 is returned. Indexing is zero - * based. - * - * @param string - * the search item - * @return the index of the item - * - * @exception IllegalArgumentException - * <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * </ul> - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> <li>ERROR_THREAD_INVALID_ACCESS - if not - * called from the thread that created the receiver</li> - * </ul> - */ - public int indexOf(String string) { - checkWidget(); - if (string == null) { - error(SWT.ERROR_NULL_ARGUMENT); - } - - return indexOf(string, 0); - } - - /** - * Searches the receiver's list starting at the given, zero-relative index - * until an item is found that is equal to the argument, and returns the - * index of that item. If no item is found or the starting index is out of - * range, returns -1. - * - * @param string - * the search item - * @param start - * the zero-relative index at which to start the search - * @return the index of the item - * - * @exception IllegalArgumentException - * <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * </ul> - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public int indexOf(String string, int start) { - checkWidget(); - if (string == null) { - SWT.error(SWT.ERROR_NULL_ARGUMENT); - } - QListWidget listWidget = getQListWidget(); - int count = listWidget.count(); - if (start < 0 || start > count - 1) { - return -1; - } - for (int i = start; i < count; i++) { - if (listWidget.item(i).equals(string)) { - return i; - } - } - return -1; - } - - /** - * Returns <code>true</code> if the item is selected, and <code>false</code> - * otherwise. Indices out of range are ignored. - * - * @param index - * the index of the item - * @return the selection state of the item at the index - * - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public boolean isSelected(int index) { - checkWidget(); - validateIndex(index); - QListWidgetItem item = getQListWidget().item(index); - if (item != null) { - return item.isSelected(); - } - return false; - } - - /** - * Removes the items from the receiver at the given zero-relative indices. - * - * @param indices - * the array of indices of the items - * - * @exception IllegalArgumentException - * <ul> - * <li>ERROR_INVALID_RANGE - if the index is not between 0 - * and the number of elements in the list minus 1 (inclusive) - * </li> - * <li>ERROR_NULL_ARGUMENT - if the indices array is null</li> - * </ul> - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public void remove(int[] indices) { - checkWidget(); - if (indices == null) { - error(SWT.ERROR_NULL_ARGUMENT); - } - for (int index : indices) { - _remove(index); - } - } - - /** - * Removes the item from the receiver at the given zero-relative index. - * - * @param index - * the index for the item - * - * @exception IllegalArgumentException - * <ul> - * <li>ERROR_INVALID_RANGE - if the index is not between 0 - * and the number of elements in the list minus 1 (inclusive) - * </li> - * </ul> - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public void remove(int index) { - checkWidget(); - _remove(index); - } - - void _remove(int index) { - validateIndex(index); - getQListWidget().takeItem(index).dispose(); - } - - /** - * Removes the items from the receiver which are between the given - * zero-relative start and end indices (inclusive). - * - * @param start - * the start of the range - * @param end - * the end of the range - * - * @exception IllegalArgumentException - * <ul> - * <li>ERROR_INVALID_RANGE - if either the start or end are - * not between 0 and the number of elements in the list minus - * 1 (inclusive)</li> - * </ul> - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public void remove(int start, int end) { - checkWidget(); - if (end < 0 || start > end || (style & SWT.SINGLE) != 0 && start != end) { - error(SWT.ERROR_INVALID_RANGE); - } - QListWidget listWidget = getQListWidget(); - int count = listWidget.count(); - if (count == 0 || start >= count) { - error(SWT.ERROR_INVALID_RANGE); - } - start = Math.max(0, start); - end = Math.min(end, count - 1); - for (int i = end; i >= start; --i) { - listWidget.takeItem(i).dispose(); - } - } - - /** - * Searches the receiver's list starting at the first item until an item is - * found that is equal to the argument, and removes that item from the list. - * - * @param string - * the item to remove - * - * @exception IllegalArgumentException - * <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * <li>ERROR_INVALID_ARGUMENT - if the string is not found in - * the list</li> - * </ul> - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public void remove(String string) { - checkWidget(); - if (string == null) { - error(SWT.ERROR_NULL_ARGUMENT); - } - int index = indexOf(string, 0); - if (index == -1) { - error(SWT.ERROR_INVALID_ARGUMENT); - } - remove(index); - } - - /** - * Removes all of the items from the receiver. - * <p> - * - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> <li>ERROR_THREAD_INVALID_ACCESS - if not - * called from the thread that created the receiver</li> - * </ul> - */ - public void removeAll() { - checkWidget(); - getQListWidget().clear(); - } - - /** - * Removes the listener from the collection of listeners who will be - * notified when the user changes the receiver's selection. - * - * @param listener - * the listener which should no longer be notified - * - * @exception IllegalArgumentException - * <ul> - * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> - * </ul> - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - * - * @see SelectionListener - * @see #addSelectionListener - */ - public void removeSelectionListener(SelectionListener listener) { - checkWidget(); - if (listener == null) { - error(SWT.ERROR_NULL_ARGUMENT); - } - if (eventTable == null) { - return; - } - eventTable.unhook(SWT.Selection, listener); - eventTable.unhook(SWT.DefaultSelection, listener); - } - - /** - * Selects the items at the given zero-relative indices in the receiver. The - * current selection is not cleared before the new items are selected. - * <p> - * If the item at a given index is not selected, it is selected. If the item - * at a given index was already selected, it remains selected. Indices that - * are out of range and duplicate indices are ignored. If the receiver is - * single-select and multiple indices are specified, then all indices are - * ignored. - * - * @param indices - * the array of indices for the items to select - * - * @exception IllegalArgumentException - * <ul> - * <li>ERROR_NULL_ARGUMENT - if the array of indices is null - * </li> - * </ul> - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> <li>ERROR_THREAD_INVALID_ACCESS - if not - * called from the thread that created the receiver</li> - * </ul> - * - * @see List#setSelection(int[]) - */ - public void select(int[] indices) { - checkWidget(); - if (indices == null) { - error(SWT.ERROR_NULL_ARGUMENT); - } - int length = indices.length; - if (length == 0 || (style & SWT.SINGLE) != 0 && length > 1) { - return; - } - select(indices, false); - } - - void select(int[] indices, boolean scroll) { - updateSelection(indices, new SelectionFlags(SelectionFlag.Select)); - } - - /** - * Selects the item at the given zero-relative index in the receiver's list. - * If the item at the index was already selected, it remains selected. - * Indices that are out of range are ignored. - * - * @param index - * the index of the item to select - * - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public void select(int index) { - checkWidget(); - select(index, false); - } - - void select(int index, boolean scroll) { - if (index < 0) { - return; - } - int count = getQListWidget().count(); - if (index >= count) { - return; - } - updateSelectionRange(index, index, new SelectionFlags(SelectionFlag.Select)); - } - - /** - * Selects the items in the range specified by the given zero-relative - * indices in the receiver. The range of indices is inclusive. The current - * selection is not cleared before the new items are selected. - * <p> - * If an item in the given range is not selected, it is selected. If an item - * in the given range was already selected, it remains selected. Indices - * that are out of range are ignored and no items will be selected if start - * is greater than end. If the receiver is single-select and there is more - * than one item in the given range, then all indices are ignored. - * - * @param start - * the start of the range - * @param end - * the end of the range - * - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> <li>ERROR_THREAD_INVALID_ACCESS - if not - * called from the thread that created the receiver</li> - * </ul> - * - * @see List#setSelection(int,int) - */ - public void select(int start, int end) { - checkWidget(); - if (end < 0 || start > end || (style & SWT.SINGLE) != 0 && start != end) { - return; - } - int count = getQListWidget().count(); - if (count == 0 || start >= count) { - return; - } - start = Math.max(0, start); - end = Math.min(end, count - 1); - if ((style & SWT.SINGLE) != 0) { - select(start, false); - } else { - select(start, end, false); - } - } - - void select(int start, int end, boolean scroll) { - updateSelectionRange(start, end, new SelectionFlags(SelectionFlag.Select)); - } - - /** - * Selects all of the items in the receiver. - * <p> - * If the receiver is single-select, do nothing. - * - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> <li>ERROR_THREAD_INVALID_ACCESS - if not - * called from the thread that created the receiver</li> - * </ul> - */ - public void selectAll() { - checkWidget(); - int count = getQListWidget().count(); - if ((style & SWT.MULTI) != 0 && count > 0) { - updateSelectionRange(0, count - 1, new SelectionFlags(SelectionFlag.Select)); - } - } - - void setFocusIndex(int index) { - QModelIndex modelIndex = getQListWidget().model().index(index, 0); - getQListWidget().selectionModel().setCurrentIndex(modelIndex, SelectionFlag.Current); - } - - /** - * Sets the text of the item in the receiver's list at the given - * zero-relative index to the string argument. - * - * @param index - * the index for the item - * @param string - * the new text for the item - * - * @exception IllegalArgumentException - * <ul> - * <li>ERROR_INVALID_RANGE - if the index is not between 0 - * and the number of elements in the list minus 1 (inclusive) - * </li> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * </ul> - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public void setItem(int index, String string) { - checkWidget(); - if (string == null) { - error(SWT.ERROR_NULL_ARGUMENT); - } - validateIndex(index); - int topIndex = getTopIndex(); - boolean isSelected = isSelected(index); - remove(index); - add(string, index); - if (isSelected) { - select(index, false); - } - setTopIndex(topIndex); - } - - /** - * Sets the receiver's items to be the given array of items. - * - * @param items - * the array of items - * - * @exception IllegalArgumentException - * <ul> - * <li>ERROR_NULL_ARGUMENT - if the items array is null</li> - * <li>ERROR_INVALID_ARGUMENT - if an item in the items array - * is null</li> - * </ul> - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public void setItems(String[] items) { - checkWidget(); - if (items == null) { - error(SWT.ERROR_NULL_ARGUMENT); - } - for (String item : items) { - if (item == null) { - error(SWT.ERROR_INVALID_ARGUMENT); - } - } - getQListWidget().clear(); - getQListWidget().addItems(Arrays.asList(items)); - } - - /** - * Selects the items at the given zero-relative indices in the receiver. The - * current selection is cleared before the new items are selected. - * <p> - * Indices that are out of range and duplicate indices are ignored. If the - * receiver is single-select and multiple indices are specified, then all - * indices are ignored. - * - * @param indices - * the indices of the items to select - * - * @exception IllegalArgumentException - * <ul> - * <li>ERROR_NULL_ARGUMENT - if the array of indices is null - * </li> - * </ul> - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> <li>ERROR_THREAD_INVALID_ACCESS - if not - * called from the thread that created the receiver</li> - * </ul> - * - * @see List#deselectAll() - * @see List#select(int[]) - */ - public void setSelection(int[] indices) { - checkWidget(); - if (indices == null) { - error(SWT.ERROR_NULL_ARGUMENT); - } - deselectAll(); - int length = indices.length; - if (length == 0 || (style & SWT.SINGLE) != 0 && length > 1) { - return; - } - select(indices, true); - if ((style & SWT.MULTI) != 0) { - int focusIndex = indices[0]; - if (focusIndex >= 0) { - setFocusIndex(focusIndex); - } - } - } - - /** - * Sets the receiver's selection to be the given array of items. The current - * selection is cleared before the new items are selected. - * <p> - * Items that are not in the receiver are ignored. If the receiver is - * single-select and multiple items are specified, then all items are - * ignored. - * - * @param items - * the array of items - * - * @exception IllegalArgumentException - * <ul> - * <li>ERROR_NULL_ARGUMENT - if the array of items is null - * </li> - * </ul> - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> <li>ERROR_THREAD_INVALID_ACCESS - if not - * called from the thread that created the receiver</li> - * </ul> - * - * @see List#deselectAll() - * @see List#select(int[]) - * @see List#setSelection(int[]) - */ - public void setSelection(String[] items) { - checkWidget(); - if (items == null) { - error(SWT.ERROR_NULL_ARGUMENT); - } - deselectAll(); - int length = items.length; - if (length == 0 || (style & SWT.SINGLE) != 0 && length > 1) { - return; - } - int focusIndex = -1; - for (int i = length - 1; i >= 0; --i) { - String string = items[i]; - int index = 0; - if (string != null) { - int localFocus = -1; - while ((index = indexOf(string, index)) != -1) { - if (localFocus == -1) { - localFocus = index; - } - select(index, false); - if ((style & SWT.SINGLE) != 0 && isSelected(index)) { - showSelection(); - return; - } - index++; - } - if (localFocus != -1) { - focusIndex = localFocus; - } - } - } - if ((style & SWT.MULTI) != 0) { - if (focusIndex >= 0) { - setFocusIndex(focusIndex); - } - } - } - - /** - * Selects the item at the given zero-relative index in the receiver. If the - * item at the index was already selected, it remains selected. The current - * selection is first cleared, then the new item is selected. Indices that - * are out of range are ignored. - * - * @param index - * the index of the item to select - * - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - * @see List#deselectAll() - * @see List#select(int) - */ - public void setSelection(int index) { - checkWidget(); - deselectAll(); - select(index, true); - if ((style & SWT.MULTI) != 0) { - if (index >= 0 && index < getQListWidget().count()) { - setFocusIndex(index); - } - } - } - - /** - * Selects the items in the range specified by the given zero-relative - * indices in the receiver. The range of indices is inclusive. The current - * selection is cleared before the new items are selected. - * <p> - * Indices that are out of range are ignored and no items will be selected - * if start is greater than end. If the receiver is single-select and there - * is more than one item in the given range, then all indices are ignored. - * - * @param start - * the start index of the items to select - * @param end - * the end index of the items to select - * - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> <li>ERROR_THREAD_INVALID_ACCESS - if not - * called from the thread that created the receiver</li> - * </ul> - * - * @see List#deselectAll() - * @see List#select(int,int) - */ - public void setSelection(int start, int end) { - checkWidget(); - deselectAll(); - if (end < 0 || start > end || (style & SWT.SINGLE) != 0 && start != end) { - return; - } - int count = getQListWidget().count(); - if (count == 0 || start >= count) { - return; - } - start = Math.max(0, start); - end = Math.min(end, count - 1); - updateSelectionRange(start, end, new SelectionFlags(SelectionFlag.Select)); - } - - /** - * Sets the zero-relative index of the item which is currently at the top of - * the receiver. This index can change when items are scrolled or new items - * are added and removed. - * - * @param index - * the index of the top item - * - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public void setTopIndex(int index) { - checkWidget(); - validateIndex(index); - getQListWidget().scrollToItem(getQListWidget().item(index), ScrollHint.PositionAtTop); - } - - /** - * Shows the selection. If the selection is already showing in the receiver, - * this method simply returns. Otherwise, the items are scrolled until the - * selection is visible. - * - * @exception SWTException - * <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been - * disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the - * thread that created the receiver</li> - * </ul> - */ - public void showSelection() { - checkWidget(); - getQListWidget().scrollToItem(getQListWidget().currentItem(), ScrollHint.PositionAtTop); - } - - private final class MyListWidget extends QListWidget { - - @Override - protected void startDrag(DropActions supportedActions) { - // System.out.println("MyQTreeWidget.startDrag: " + supportedActions); - } - - @Override - protected void dropEvent(QDropEvent event) { - sendDropEvent(event); - } - - @Override - protected void dragMoveEvent(QDragMoveEvent event) { - sendDragMoveEvent(event); - } - - @Override - protected void dragEnterEvent(QDragEnterEvent event) { - sendDragEnterEvent(event); - } - - @Override - protected void dragLeaveEvent(QDragLeaveEvent event) { - sendDragLeaveEvent(event); - } - - } - -} |