| /******************************************************************************* |
| * Copyright (c) 2000, 2007 IBM Corporation and others. |
| * 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 |
| * Tom Seidel - enhancements for image-handling |
| * Michael Edwards - further enhancements to support image AND text in |
| * collapsed state of combo |
| * |
| * http://svn.bungtopia.com/public/trunk/image-combo/ImageCombo.java |
| * http://caribou.iisg.agh.edu.pl/pub/svn/cast-platform/trunk/plugins/third-party/src/main/java/com/axelerator/studio/rc/util/ui/ImageCombo.java |
| *******************************************************************************/ |
| package com.axelerator.studio.rc.util.ui; |
| |
| import java.util.Arrays; |
| |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.SWTException; |
| import org.eclipse.swt.accessibility.ACC; |
| import org.eclipse.swt.accessibility.AccessibleAdapter; |
| import org.eclipse.swt.accessibility.AccessibleControlAdapter; |
| import org.eclipse.swt.accessibility.AccessibleControlEvent; |
| import org.eclipse.swt.accessibility.AccessibleEvent; |
| import org.eclipse.swt.accessibility.AccessibleTextAdapter; |
| import org.eclipse.swt.accessibility.AccessibleTextEvent; |
| import org.eclipse.swt.events.ModifyListener; |
| import org.eclipse.swt.events.SelectionEvent; |
| import org.eclipse.swt.events.SelectionListener; |
| import org.eclipse.swt.events.VerifyListener; |
| import org.eclipse.swt.graphics.Color; |
| import org.eclipse.swt.graphics.Font; |
| import org.eclipse.swt.graphics.GC; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.swt.graphics.Point; |
| import org.eclipse.swt.graphics.Rectangle; |
| import org.eclipse.swt.widgets.Button; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Event; |
| import org.eclipse.swt.widgets.Label; |
| import org.eclipse.swt.widgets.List; |
| import org.eclipse.swt.widgets.Listener; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.swt.widgets.Table; |
| import org.eclipse.swt.widgets.TableItem; |
| import org.eclipse.swt.widgets.Text; |
| import org.eclipse.swt.widgets.TypedListener; |
| import org.eclipse.swt.widgets.Widget; |
| import org.eclipse.ui.forms.widgets.TableWrapData; |
| import org.eclipse.ui.forms.widgets.TableWrapLayout; |
| |
| /** |
| * Instances of this class are controls that allow the user |
| * to choose an item from a list of items, or optionally |
| * enter a new value by typing it into an editable text |
| * field. Often, <code>Combo</code>s are used in the same place |
| * where a single selection <code>List</code> widget could |
| * be used but space is limited. A <code>Combo</code> takes |
| * less space than a <code>List</code> widget and shows |
| * similar information. |
| * <p> |
| * Note: Since <code>Combo</code>s can contain both a list |
| * and an editable text field, it is possible to confuse methods |
| * which access one versus the other (compare for example, |
| * <code>clearSelection()</code> and <code>deselectAll()</code>). |
| * The API documentation is careful to indicate either "the |
| * receiver's list" or the "the receiver's text field" to |
| * distinguish between the two cases. |
| * </p><p> |
| * Note that although this class is a subclass of <code>Composite</code>, |
| * it does not make sense to add children to it, or set a layout on it. |
| * </p> |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>DROP_DOWN, READ_ONLY, SIMPLE</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>DefaultSelection, Modify, Selection, Verify</dd> |
| * </dl> |
| * <p> |
| * Note: Only one of the styles DROP_DOWN and SIMPLE may be specified. |
| * </p><p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| * |
| * @see List |
| */ |
| |
| public class ImageCombo extends Composite { |
| boolean noSelection, ignoreDefaultSelection, ignoreCharacter, ignoreModify; |
| int cbtHook, scrollWidth, visibleCount = 5; |
| |
| private Composite comboComposite; |
| private Label imageLabel; |
| private Text text; |
| private Table table; |
| private int visibleItemCount = 4; |
| private Shell popup; |
| private Button arrow; |
| private boolean hasFocus; |
| private Listener listener, filter; |
| private Color foreground, background; |
| private Font font; |
| private int style; |
| private int maxImageWidth = 0; |
| |
| /** |
| * 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#DROP_DOWN |
| * @see SWT#READ_ONLY |
| * @see SWT#SIMPLE |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public ImageCombo(Composite parent, int style) { |
| super(parent, style = checkStyle(style)); |
| this.style = style; |
| /* This code is intentionally commented */ |
| //if ((style & SWT.H_SCROLL) != 0) this.style |= SWT.H_SCROLL; |
| this.style |= SWT.H_SCROLL; |
| |
| int textStyle = SWT.SINGLE; |
| if ( (style & SWT.READ_ONLY) != 0 ) { |
| textStyle |= SWT.READ_ONLY; |
| } |
| if ( (style & SWT.FLAT) != 0 ) { |
| textStyle |= SWT.FLAT; |
| } |
| |
| this.comboComposite = new Composite(this, SWT.NONE); |
| TableWrapLayout tableWrapLayout = new TableWrapLayout(); |
| tableWrapLayout.numColumns = 2; |
| tableWrapLayout.topMargin = 2; |
| tableWrapLayout.bottomMargin = 0; |
| tableWrapLayout.leftMargin = 2; |
| tableWrapLayout.rightMargin = 0; |
| this.comboComposite.setLayout(tableWrapLayout); |
| this.comboComposite.setLayoutData(new TableWrapData()); |
| |
| this.imageLabel = new Label(this.comboComposite, SWT.NONE); |
| this.imageLabel.setLayoutData(new TableWrapData()); |
| |
| this.text = new Text(this.comboComposite, SWT.READ_ONLY); |
| this.text.setLayoutData(new TableWrapData(TableWrapData.FILL_GRAB)); |
| |
| this.comboComposite.setCursor(getDisplay().getSystemCursor(SWT.CURSOR_ARROW)); |
| |
| int arrowStyle = SWT.ARROW | SWT.DOWN; |
| if ( (style & SWT.FLAT) != 0 ) { |
| arrowStyle |= SWT.FLAT; |
| } |
| this.arrow = new Button(this, arrowStyle); |
| |
| this.listener = new Listener() { |
| @Override |
| public void handleEvent(Event event) { |
| if ( ImageCombo.this.popup == event.widget ) { |
| popupEvent(event); |
| return; |
| } |
| if ( ImageCombo.this.text == event.widget ) { |
| textEvent(event); |
| return; |
| } |
| if ( ImageCombo.this.table == event.widget ) { |
| listEvent(event); |
| return; |
| } |
| if ( ImageCombo.this.arrow == event.widget ) { |
| arrowEvent(event); |
| return; |
| } |
| if ( ImageCombo.this == event.widget ) { |
| comboEvent(event); |
| return; |
| } |
| if ( getShell() == event.widget ) { |
| handleFocus(SWT.FocusOut); |
| } |
| } |
| }; |
| this.filter = new Listener() { |
| @Override |
| public void handleEvent(Event event) { |
| Shell shell = ((Control) event.widget).getShell(); |
| if ( shell == ImageCombo.this.getShell() ) { |
| handleFocus(SWT.FocusOut); |
| } |
| } |
| }; |
| |
| int[] comboEvents = { SWT.Dispose, SWT.Move, SWT.Resize }; |
| for (int i = 0; i < comboEvents.length; i++) { |
| this.addListener(comboEvents[i], this.listener); |
| } |
| |
| int[] textEvents = { SWT.KeyDown, SWT.KeyUp, SWT.Modify, SWT.MouseDown, SWT.MouseUp, SWT.Traverse, SWT.FocusIn }; |
| for (int i = 0; i < textEvents.length; i++) { |
| this.text.addListener(textEvents[i], this.listener); |
| } |
| |
| int[] arrowEvents = { SWT.Selection, SWT.FocusIn }; |
| for (int i = 0; i < arrowEvents.length; i++) { |
| this.arrow.addListener(arrowEvents[i], this.listener); |
| } |
| |
| createPopup(-1); |
| initAccessible(); |
| } |
| |
| /** |
| * 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(Image image, String string) { |
| checkWidget(); |
| if ( string == null ) { |
| SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| } |
| |
| TableItem newItem = new TableItem(this.table, SWT.FILL); |
| newItem.setText(string);// |
| if ( image != null ) { |
| newItem.setImage(image); |
| setImageLabel(image); |
| } |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the receiver's text is modified, by sending |
| * it one of the messages defined in the <code>ModifyListener</code> |
| * interface. |
| * |
| * @param listener the listener which should 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 ModifyListener |
| * @see #removeModifyListener |
| */ |
| public void addModifyListener(ModifyListener listener) { |
| checkWidget(); |
| if ( listener == null ) { |
| SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| } |
| TypedListener typedListener = new TypedListener(listener); |
| addListener(SWT.Modify, typedListener); |
| } |
| |
| /** |
| * 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 user changes the combo's list selection. |
| * <code>widgetDefaultSelected</code> is typically called when ENTER is pressed the combo's text area. |
| * </p> |
| * |
| * @param listener the listener which should 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 #removeSelectionListener |
| * @see SelectionEvent |
| */ |
| public void addSelectionListener(SelectionListener listener) { |
| checkWidget(); |
| if ( listener == null ) { |
| SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| } |
| TypedListener typedListener = new TypedListener(listener); |
| addListener(SWT.Selection, typedListener); |
| addListener(SWT.DefaultSelection, typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the receiver's text is verified, by sending |
| * it one of the messages defined in the <code>VerifyListener</code> |
| * interface. |
| * |
| * @param listener the listener which should 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 VerifyListener |
| * @see #removeVerifyListener |
| * |
| * @since 3.1 |
| */ |
| public void addVerifyListener(VerifyListener listener) { |
| checkWidget(); |
| if ( listener == null ) { |
| SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| } |
| TypedListener typedListener = new TypedListener(listener); |
| addListener(SWT.Verify, typedListener); |
| } |
| |
| static int checkStyle(int style) { |
| int mask = SWT.BORDER | SWT.READ_ONLY | SWT.FLAT | SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT; |
| return style & mask; |
| } |
| |
| @Override |
| public Point computeSize(int wHint, int hHint, boolean changed) { |
| checkWidget(); |
| int width = 0, height = 0; |
| String[] items = getStringsFromTable(); |
| int textWidth = 0; |
| GC gc = new GC(this.comboComposite); |
| int spacer = gc.stringExtent(" ").x; //$NON-NLS-1$ |
| for (int i = 0; i < items.length; i++) { |
| textWidth = Math.max(gc.stringExtent(items[i]).x, textWidth); |
| } |
| gc.dispose(); |
| Point textSize = this.comboComposite.computeSize(SWT.DEFAULT, SWT.DEFAULT, changed); |
| Point arrowSize = this.arrow.computeSize(SWT.DEFAULT, SWT.DEFAULT, changed); |
| Point listSize = this.table.computeSize(wHint, SWT.DEFAULT, changed); |
| int borderWidth = getBorderWidth(); |
| |
| height = Math.max(hHint, Math.max(textSize.y, arrowSize.y) + 2 * borderWidth); |
| width = Math.max(wHint, Math.max(textWidth + 2 * spacer + arrowSize.x + 2 * borderWidth, listSize.x)); |
| return new Point(width + 10, height); |
| } |
| |
| /** |
| * Deselects the item at the given zero-relative index in the receiver's |
| * list. 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(); |
| this.table.deselect(index); |
| } |
| |
| /** |
| * Deselects all selected items in the receiver's list. |
| * <p> |
| * Note: To clear the selection in the receiver's text field, |
| * use <code>clearSelection()</code>. |
| * </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> |
| * |
| * @see #clearSelection |
| */ |
| public void deselectAll() { |
| checkWidget(); |
| this.text.clearSelection(); |
| this.table.deselectAll(); |
| } |
| |
| /** |
| * Returns the item at the given, zero-relative index in the |
| * receiver's list. 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(); |
| return this.table.getItem(index).getText(); |
| } |
| |
| /** |
| * Returns the number of items contained in the receiver's list. |
| * |
| * @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 this.table.getItemCount(); |
| } |
| |
| /** |
| * Returns the height of the area which would be used to |
| * display <em>one</em> of the items in the receiver's 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(); |
| return this.table.getItemHeight(); |
| } |
| |
| /** |
| * Returns a (possibly empty) array of <code>String</code>s which are |
| * the items in the receiver's list. |
| * <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 TableItem[] getItems() { |
| checkWidget(); |
| return this.table.getItems(); |
| } |
| |
| /** |
| * Returns the orientation of the receiver. |
| * |
| * @return the orientation style |
| * |
| * @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> |
| * |
| * @since 2.1.2 |
| */ |
| @Override |
| public int getOrientation() { |
| checkWidget(); |
| return this.style & (SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT); |
| } |
| |
| /** |
| * Returns a <code>Point</code> whose x coordinate is the |
| * character position representing the start of the selection |
| * in the receiver's text field, and whose y coordinate is the |
| * character position representing the end of the selection. |
| * An "empty" selection is indicated by the x and y coordinates |
| * having the same value. |
| * <p> |
| * Indexing is zero based. The range of a selection is from |
| * 0..N where N is the number of characters in the widget. |
| * </p> |
| * |
| * @return a point representing the selection start and end |
| * |
| * @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 Point getSelection() { |
| checkWidget(); |
| return this.text.getSize(); |
| } |
| |
| /** |
| * Returns the zero-relative index of the item which is currently |
| * selected in the receiver's list, or -1 if no item is selected. |
| * |
| * @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 getSelectionIndex() { |
| checkWidget(); |
| return this.table.getSelectionIndex(); |
| } |
| |
| /** |
| * Returns a string containing a copy of the contents of the |
| * receiver's text field, or an empty string if there are no |
| * contents. |
| * |
| * @return the receiver's text |
| * |
| * @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 getText() { |
| checkWidget(); |
| return this.text.getText(); |
| } |
| |
| /** |
| * Returns the height of the receivers's text field. |
| * |
| * @return the text height |
| * |
| * @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 getTextHeight() { |
| checkWidget(); |
| return this.text.getSize().x; |
| } |
| |
| /** |
| * Gets the number of items that are visible in the drop |
| * down portion of the receiver's list. |
| * <p> |
| * Note: This operation is a hint and is not supported on |
| * platforms that do not have this concept. |
| * </p> |
| * |
| * @return the number of items that are 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> |
| * |
| * @since 3.0 |
| */ |
| public int getVisibleItemCount() { |
| checkWidget(); |
| return this.visibleCount; |
| } |
| |
| /** |
| * Searches the receiver's list starting at the first item |
| * (index 0) until an item is found that is equal to the |
| * argument, and returns the index of that item. If no item |
| * is found, returns -1. |
| * |
| * @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 ) { |
| SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| } |
| return Arrays.asList(getStringsFromTable()).indexOf(string); |
| } |
| |
| /** |
| * Removes the item from the receiver's list 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(); |
| this.table.remove(index); |
| } |
| |
| /** |
| * Removes the items from the receiver's list 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(); |
| this.table.remove(start, end); |
| } |
| |
| /** |
| * 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 ) { |
| SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| } |
| int index = -1; |
| for (int i = 0, n = this.table.getItemCount(); i < n; i++) { |
| if ( this.table.getItem(i).getText().equals(string) ) { |
| index = i; |
| break; |
| } |
| } |
| remove(index); |
| } |
| |
| /** |
| * Removes all of the items from the receiver's list and clear the |
| * contents of receiver's text field. |
| * <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(); |
| this.text.setText(""); //$NON-NLS-1$ |
| this.table.removeAll(); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the receiver's text is modified. |
| * |
| * @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 ModifyListener |
| * @see #addModifyListener |
| */ |
| public void removeModifyListener(ModifyListener listener) { |
| checkWidget(); |
| if ( listener == null ) { |
| SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| } |
| removeListener(SWT.Modify, listener); |
| } |
| |
| /** |
| * 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 ) { |
| SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| } |
| removeListener(SWT.Selection, listener); |
| removeListener(SWT.DefaultSelection, listener); |
| } |
| |
| /** |
| * 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(); |
| if ( index == -1 ) { |
| this.table.deselectAll(); |
| this.text.setText(""); //$NON-NLS-1$ |
| return; |
| } |
| if (0 <= index && index < this.table.getItemCount() |
| && index != getSelectionIndex()) { |
| setImageLabel(index); |
| this.text.setText(this.table.getItem(index).getText()); |
| this.text.selectAll(); |
| this.table.select(index); |
| this.table.showSelection(); |
| } |
| } |
| |
| @Override |
| public void setFont(Font font) { |
| checkWidget(); |
| super.setFont(font); |
| this.font = font; |
| this.text.setFont(font); |
| this.table.setFont(font); |
| internalLayout(true); |
| } |
| |
| /** |
| * Sets the contents of the receiver's text field to the |
| * given string. |
| * <p> |
| * Note: The text field in a <code>Combo</code> is typically |
| * only capable of displaying a single line of text. Thus, |
| * setting the text to a string containing line breaks or |
| * other special characters will probably cause it to |
| * display incorrectly. |
| * </p> |
| * |
| * @param string the new text |
| * |
| * @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 void setText(String string) { |
| checkWidget(); |
| if ( string == null ) { |
| SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| } |
| int index = -1; |
| for (int i = 0, n = this.table.getItemCount(); i < n; i++) { |
| if ( this.table.getItem(i).getText().equals(string) ) { |
| index = i; |
| break; |
| } |
| } |
| if ( index == -1 ) { |
| this.table.deselectAll(); |
| this.text.setText(string); |
| return; |
| } |
| this.text.setText(string); |
| this.text.selectAll(); |
| this.table.setSelection(index); |
| this.table.showSelection(); |
| } |
| |
| @Override |
| public void setToolTipText(String string) { |
| checkWidget(); |
| super.setToolTipText(string); |
| this.arrow.setToolTipText(string); |
| this.comboComposite.setToolTipText(string); |
| } |
| |
| /** |
| * Sets the number of items that are visible in the drop |
| * down portion of the receiver's list. |
| * <p> |
| * Note: This operation is a hint and is not supported on |
| * platforms that do not have this concept. |
| * </p> |
| * |
| * @param count the new number of items to be 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> |
| * |
| * @since 3.0 |
| */ |
| public void setVisibleItemCount(int count) { |
| checkWidget(); |
| if ( count < 0 ) { |
| return; |
| } |
| this.visibleItemCount = count; |
| } |
| |
| /** |
| * Gets the editable state. |
| * |
| * @return whether or not the reciever is editable |
| * |
| * @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> |
| * |
| * @since 3.0 |
| */ |
| public boolean getEditable() { |
| checkWidget(); |
| return this.text.getEditable(); |
| } |
| |
| void handleFocus(int type) { |
| if ( isDisposed() ) { |
| return; |
| } |
| switch (type) { |
| case SWT.FocusIn: { |
| if ( this.hasFocus ) { |
| return; |
| } |
| if ( getEditable() ) { |
| this.text.selectAll(); |
| } |
| this.hasFocus = true; |
| Shell shell = getShell(); |
| shell.removeListener(SWT.Deactivate, this.listener); |
| shell.addListener(SWT.Deactivate, this.listener); |
| Display display = getDisplay(); |
| display.removeFilter(SWT.FocusIn, this.filter); |
| display.addFilter(SWT.FocusIn, this.filter); |
| Event e = new Event(); |
| notifyListeners(SWT.FocusIn, e); |
| break; |
| } |
| case SWT.FocusOut: { |
| if ( !this.hasFocus ) { |
| return; |
| } |
| Control focusControl = getDisplay().getFocusControl(); |
| if ( focusControl == this.arrow || focusControl == this.table || focusControl == this.comboComposite ) { |
| return; |
| } |
| this.hasFocus = false; |
| Shell shell = getShell(); |
| shell.removeListener(SWT.Deactivate, this.listener); |
| Display display = getDisplay(); |
| display.removeFilter(SWT.FocusIn, this.filter); |
| Event e = new Event(); |
| notifyListeners(SWT.FocusOut, e); |
| break; |
| } |
| } |
| } |
| |
| void createPopup(int selectionIndex) { |
| // create shell and list |
| this.popup = new Shell(getShell(), SWT.NO_TRIM | SWT.ON_TOP); |
| int style = getStyle(); |
| int listStyle = SWT.SINGLE | SWT.V_SCROLL; |
| if ( (style & SWT.FLAT) != 0 ) { |
| listStyle |= SWT.FLAT; |
| } |
| if ( (style & SWT.RIGHT_TO_LEFT) != 0 ) { |
| listStyle |= SWT.RIGHT_TO_LEFT; |
| } |
| if ( (style & SWT.LEFT_TO_RIGHT) != 0 ) { |
| listStyle |= SWT.LEFT_TO_RIGHT; |
| } |
| // create a table instead of a list. |
| this.table = new Table(this.popup, listStyle); |
| if ( this.font != null ) { |
| this.table.setFont(this.font); |
| } |
| if ( this.foreground != null ) { |
| this.table.setForeground(this.foreground); |
| } |
| if ( this.background != null ) { |
| this.table.setBackground(this.background); |
| } |
| |
| int[] popupEvents = { SWT.Close, SWT.Paint, SWT.Deactivate }; |
| for (int i = 0; i < popupEvents.length; i++) { |
| this.popup.addListener(popupEvents[i], this.listener); |
| } |
| int[] listEvents = { SWT.MouseUp, SWT.Selection, SWT.Traverse, SWT.KeyDown, SWT.KeyUp, SWT.FocusIn, SWT.Dispose }; |
| for (int i = 0; i < listEvents.length; i++) { |
| this.table.addListener(listEvents[i], this.listener); |
| } |
| |
| if ( selectionIndex != -1 ) { |
| this.table.setSelection(selectionIndex); |
| } |
| } |
| |
| boolean isDropped() { |
| return this.popup.getVisible(); |
| } |
| |
| void dropDown(boolean drop) { |
| if ( drop == isDropped() ) { |
| return; |
| } |
| if ( !drop ) { |
| this.popup.setVisible(false); |
| if ( !isDisposed() && this.arrow.isFocusControl() ) { |
| this.comboComposite.setFocus(); |
| } |
| return; |
| } |
| |
| if ( getShell() != this.popup.getParent() ) { |
| int selectionIndex = this.table.getSelectionIndex(); |
| this.table.removeListener(SWT.Dispose, this.listener); |
| this.popup.dispose(); |
| this.popup = null; |
| this.table = null; |
| createPopup(selectionIndex); |
| } |
| |
| Point size = getSize(); |
| int itemCount = this.table.getItemCount(); |
| itemCount = (itemCount == 0) ? this.visibleItemCount : Math.min(this.visibleItemCount, itemCount); |
| int itemHeight = this.table.getItemHeight() * itemCount; |
| Point listSize = this.table.computeSize(SWT.DEFAULT, itemHeight, false); |
| this.table.setBounds(1, 1, Math.max(size.x - 2, listSize.x), listSize.y); |
| |
| int index = this.table.getSelectionIndex(); |
| if ( index != -1 ) { |
| this.table.setTopIndex(index); |
| } |
| Display display = getDisplay(); |
| Rectangle listRect = this.table.getBounds(); |
| Rectangle parentRect = display.map(getParent(), null, getBounds()); |
| Point comboSize = getSize(); |
| Rectangle displayRect = getMonitor().getClientArea(); |
| int width = Math.max(comboSize.x, listRect.width + 2); |
| int height = listRect.height + 2; |
| int x = parentRect.x; |
| int y = parentRect.y + comboSize.y; |
| if ( y + height > displayRect.y + displayRect.height ) { |
| y = parentRect.y - height; |
| } |
| this.popup.setBounds(x, y, width, height); |
| this.popup.setVisible(true); |
| this.table.setFocus(); |
| } |
| |
| private void setImageLabel(int index) { |
| setImageLabel(this.table.getItem(index).getImage()); |
| } |
| |
| private void setImageLabel(Image image) { |
| this.imageLabel.setImage(image); |
| Point size = this.imageLabel.computeSize(SWT.DEFAULT, SWT.DEFAULT, true); |
| this.imageLabel.setSize(size); |
| if (size.x > maxImageWidth) { |
| maxImageWidth = size.x; |
| } |
| Point location = this.text.getLocation(); |
| if (location.x < maxImageWidth) { |
| location.x = maxImageWidth; |
| this.text.setLocation(location); |
| } |
| } |
| |
| void listEvent(Event event) { |
| switch (event.type) { |
| case SWT.Dispose: |
| if ( getShell() != this.popup.getParent() ) { |
| int selectionIndex = this.table.getSelectionIndex(); |
| this.popup = null; |
| this.table = null; |
| createPopup(selectionIndex); |
| } |
| break; |
| case SWT.FocusIn: { |
| handleFocus(SWT.FocusIn); |
| break; |
| } |
| case SWT.MouseUp: { |
| if ( event.button != 1 ) { |
| return; |
| } |
| dropDown(false); |
| break; |
| } |
| case SWT.Selection: { |
| int index = this.table.getSelectionIndex(); |
| if ( index == -1 ) { |
| return; |
| } |
| this.text.setText(this.table.getItem(index).getText()); |
| this.text.selectAll(); |
| setImageLabel(index); |
| this.table.setSelection(index); |
| Event e = new Event(); |
| e.time = event.time; |
| e.stateMask = event.stateMask; |
| e.doit = event.doit; |
| notifyListeners(SWT.Selection, e); |
| event.doit = e.doit; |
| break; |
| } |
| case SWT.Traverse: { |
| switch (event.detail) { |
| case SWT.TRAVERSE_RETURN: |
| case SWT.TRAVERSE_ESCAPE: |
| case SWT.TRAVERSE_ARROW_PREVIOUS: |
| case SWT.TRAVERSE_ARROW_NEXT: |
| event.doit = false; |
| break; |
| } |
| Event e = new Event(); |
| e.time = event.time; |
| e.detail = event.detail; |
| e.doit = event.doit; |
| e.character = event.character; |
| e.keyCode = event.keyCode; |
| notifyListeners(SWT.Traverse, e); |
| event.doit = e.doit; |
| event.detail = e.detail; |
| break; |
| } |
| case SWT.KeyUp: { |
| Event e = new Event(); |
| e.time = event.time; |
| e.character = event.character; |
| e.keyCode = event.keyCode; |
| e.stateMask = event.stateMask; |
| notifyListeners(SWT.KeyUp, e); |
| break; |
| } |
| case SWT.KeyDown: { |
| if ( event.character == SWT.ESC ) { |
| // Escape key cancels popup list |
| dropDown(false); |
| } |
| if ( (event.stateMask & SWT.ALT) != 0 |
| && (event.keyCode == SWT.ARROW_UP || event.keyCode == SWT.ARROW_DOWN) ) { |
| dropDown(false); |
| } |
| if ( event.character == SWT.CR ) { |
| // Enter causes default selection |
| dropDown(false); |
| Event e = new Event(); |
| e.time = event.time; |
| e.stateMask = event.stateMask; |
| notifyListeners(SWT.DefaultSelection, e); |
| } |
| // At this point the widget may have been disposed. |
| // If so, do not continue. |
| if ( isDisposed() ) { |
| break; |
| } |
| Event e = new Event(); |
| e.time = event.time; |
| e.character = event.character; |
| e.keyCode = event.keyCode; |
| e.stateMask = event.stateMask; |
| notifyListeners(SWT.KeyDown, e); |
| break; |
| |
| } |
| } |
| } |
| |
| void arrowEvent(Event event) { |
| switch (event.type) { |
| case SWT.FocusIn: { |
| handleFocus(SWT.FocusIn); |
| break; |
| } |
| case SWT.Selection: { |
| dropDown(!isDropped()); |
| break; |
| } |
| } |
| } |
| |
| void comboEvent(Event event) { |
| switch (event.type) { |
| case SWT.Dispose: |
| if ( this.popup != null && !this.popup.isDisposed() ) { |
| this.table.removeListener(SWT.Dispose, this.listener); |
| this.popup.dispose(); |
| } |
| Shell shell = getShell(); |
| shell.removeListener(SWT.Deactivate, this.listener); |
| Display display = getDisplay(); |
| display.removeFilter(SWT.FocusIn, this.filter); |
| this.popup = null; |
| this.comboComposite = null; |
| this.table = null; |
| this.arrow = null; |
| break; |
| case SWT.Move: |
| dropDown(false); |
| break; |
| case SWT.Resize: |
| internalLayout(false); |
| break; |
| } |
| } |
| |
| void internalLayout(boolean changed) { |
| if ( isDropped() ) { |
| dropDown(false); |
| } |
| Rectangle rect = getClientArea(); |
| int width = rect.width; |
| int height = rect.height; |
| Point arrowSize = this.arrow.computeSize(SWT.DEFAULT, height, changed); |
| this.comboComposite.setBounds(0, 0, width - arrowSize.x, height); |
| this.arrow.setBounds(width - arrowSize.x, 0, arrowSize.x, arrowSize.y); |
| } |
| |
| void popupEvent(Event event) { |
| switch (event.type) { |
| case SWT.Paint: |
| // draw black rectangle around list |
| Rectangle listRect = this.table.getBounds(); |
| Color black = getDisplay().getSystemColor(SWT.COLOR_BLACK); |
| event.gc.setForeground(black); |
| event.gc.drawRectangle(0, 0, listRect.width + 1, listRect.height + 1); |
| break; |
| case SWT.Close: |
| event.doit = false; |
| dropDown(false); |
| break; |
| case SWT.Deactivate: |
| dropDown(false); |
| break; |
| } |
| } |
| |
| Label getAssociatedLabel() { |
| Control[] siblings = getParent().getChildren(); |
| for (int i = 0; i < siblings.length; i++) { |
| if ( siblings[i] == ImageCombo.this ) { |
| if ( i > 0 && siblings[i - 1] instanceof Label ) { |
| return (Label) siblings[i - 1]; |
| } |
| } |
| } |
| return null; |
| } |
| |
| char getMnemonic(String string) { |
| int index = 0; |
| int length = string.length(); |
| do { |
| while ((index < length) && (string.charAt(index) != '&')) { |
| index++; |
| } |
| if ( ++index >= length ) { |
| return '\0'; |
| } |
| if ( string.charAt(index) != '&' ) { |
| return string.charAt(index); |
| } |
| index++; |
| } while (index < length); |
| return '\0'; |
| } |
| |
| String[] getStringsFromTable() { |
| String[] items = new String[this.table.getItems().length]; |
| for (int i = 0, n = items.length; i < n; i++) { |
| items[i] = this.table.getItem(i).getText(); |
| } |
| return items; |
| } |
| |
| String stripMnemonic(String string) { |
| int index = 0; |
| int length = string.length(); |
| do { |
| while ((index < length) && (string.charAt(index) != '&')) { |
| index++; |
| } |
| if ( ++index >= length ) { |
| return string; |
| } |
| if ( string.charAt(index) != '&' ) { |
| return string.substring(0, index - 1) + string.substring(index, length); |
| } |
| index++; |
| } while (index < length); |
| return string; |
| } |
| |
| void initAccessible() { |
| AccessibleAdapter accessibleAdapter = new AccessibleAdapter() { |
| @Override |
| public void getName(AccessibleEvent e) { |
| String name = null; |
| Label label = getAssociatedLabel(); |
| if ( label != null ) { |
| name = stripMnemonic(label.getText()); |
| } |
| e.result = name; |
| } |
| |
| @Override |
| public void getKeyboardShortcut(AccessibleEvent e) { |
| String shortcut = null; |
| Label label = getAssociatedLabel(); |
| if ( label != null ) { |
| String text = label.getText(); |
| if ( text != null ) { |
| char mnemonic = getMnemonic(text); |
| if ( mnemonic != '\0' ) { |
| shortcut = "Alt+" + mnemonic; //$NON-NLS-1$ |
| } |
| } |
| } |
| e.result = shortcut; |
| } |
| |
| @Override |
| public void getHelp(AccessibleEvent e) { |
| e.result = getToolTipText(); |
| } |
| }; |
| getAccessible().addAccessibleListener(accessibleAdapter); |
| this.comboComposite.getAccessible().addAccessibleListener(accessibleAdapter); |
| this.table.getAccessible().addAccessibleListener(accessibleAdapter); |
| |
| this.arrow.getAccessible().addAccessibleListener(new AccessibleAdapter() { |
| @Override |
| public void getName(AccessibleEvent e) { |
| e.result = isDropped() ? SWT.getMessage("SWT_Close") : SWT.getMessage("SWT_Open"); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| |
| @Override |
| public void getKeyboardShortcut(AccessibleEvent e) { |
| e.result = "Alt+Down Arrow"; //$NON-NLS-1$ |
| } |
| |
| @Override |
| public void getHelp(AccessibleEvent e) { |
| e.result = getToolTipText(); |
| } |
| }); |
| |
| getAccessible().addAccessibleTextListener(new AccessibleTextAdapter() { |
| @Override |
| public void getCaretOffset(AccessibleTextEvent e) { |
| e.offset = ImageCombo.this.text.getCaretPosition(); |
| } |
| }); |
| |
| getAccessible().addAccessibleControlListener(new AccessibleControlAdapter() { |
| @Override |
| public void getChildAtPoint(AccessibleControlEvent e) { |
| Point testPoint = toControl(e.x, e.y); |
| if ( getBounds().contains(testPoint) ) { |
| e.childID = ACC.CHILDID_SELF; |
| } |
| } |
| |
| @Override |
| public void getLocation(AccessibleControlEvent e) { |
| Rectangle location = getBounds(); |
| Point pt = toDisplay(location.x, location.y); |
| e.x = pt.x; |
| e.y = pt.y; |
| e.width = location.width; |
| e.height = location.height; |
| } |
| |
| @Override |
| public void getChildCount(AccessibleControlEvent e) { |
| e.detail = 0; |
| } |
| |
| @Override |
| public void getRole(AccessibleControlEvent e) { |
| e.detail = ACC.ROLE_COMBOBOX; |
| } |
| |
| @Override |
| public void getState(AccessibleControlEvent e) { |
| e.detail = ACC.STATE_NORMAL; |
| } |
| |
| @Override |
| public void getValue(AccessibleControlEvent e) { |
| e.result = getText(); |
| } |
| }); |
| |
| this.text.getAccessible().addAccessibleControlListener(new AccessibleControlAdapter() { |
| @Override |
| public void getRole(AccessibleControlEvent e) { |
| e.detail = ACC.ROLE_LABEL; |
| } |
| }); |
| |
| this.arrow.getAccessible().addAccessibleControlListener(new AccessibleControlAdapter() { |
| @Override |
| public void getDefaultAction(AccessibleControlEvent e) { |
| e.result = isDropped() ? SWT.getMessage("SWT_Close") : SWT.getMessage("SWT_Open"); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| }); |
| } |
| |
| void textEvent(Event event) { |
| switch (event.type) { |
| case SWT.FocusIn: { |
| handleFocus(SWT.FocusIn); |
| break; |
| } |
| case SWT.KeyDown: { |
| if ( event.character == SWT.CR ) { |
| dropDown(false); |
| Event e = new Event(); |
| e.time = event.time; |
| e.stateMask = event.stateMask; |
| notifyListeners(SWT.DefaultSelection, e); |
| } |
| //At this point the widget may have been disposed. |
| // If so, do not continue. |
| if ( isDisposed() ) { |
| break; |
| } |
| |
| if ( event.keyCode == SWT.ARROW_UP || event.keyCode == SWT.ARROW_DOWN ) { |
| event.doit = false; |
| if ( (event.stateMask & SWT.ALT) != 0 ) { |
| boolean dropped = isDropped(); |
| this.text.selectAll(); |
| if ( !dropped ) { |
| setFocus(); |
| } |
| dropDown(!dropped); |
| break; |
| } |
| |
| int oldIndex = getSelectionIndex(); |
| if ( event.keyCode == SWT.ARROW_UP ) { |
| select(Math.max(oldIndex - 1, 0)); |
| } else { |
| select(Math.min(oldIndex + 1, getItemCount() - 1)); |
| } |
| if ( oldIndex != getSelectionIndex() ) { |
| Event e = new Event(); |
| e.time = event.time; |
| e.stateMask = event.stateMask; |
| notifyListeners(SWT.Selection, e); |
| } |
| //At this point the widget may have been disposed. |
| // If so, do not continue. |
| if ( isDisposed() ) { |
| break; |
| } |
| } |
| |
| // Further work : Need to add support for incremental search in |
| // pop up list as characters typed in text widget |
| |
| Event e = new Event(); |
| e.time = event.time; |
| e.character = event.character; |
| e.keyCode = event.keyCode; |
| e.stateMask = event.stateMask; |
| notifyListeners(SWT.KeyDown, e); |
| break; |
| } |
| case SWT.KeyUp: { |
| Event e = new Event(); |
| e.time = event.time; |
| e.character = event.character; |
| e.keyCode = event.keyCode; |
| e.stateMask = event.stateMask; |
| notifyListeners(SWT.KeyUp, e); |
| break; |
| } |
| case SWT.Modify: { |
| this.table.deselectAll(); |
| Event e = new Event(); |
| e.time = event.time; |
| notifyListeners(SWT.Modify, e); |
| break; |
| } |
| case SWT.MouseDown: { |
| if ( event.button != 1 ) { |
| return; |
| } |
| if ( this.text.getEditable() ) { |
| return; |
| } |
| boolean dropped = isDropped(); |
| this.text.selectAll(); |
| if ( !dropped ) { |
| setFocus(); |
| } |
| dropDown(!dropped); |
| break; |
| } |
| case SWT.MouseUp: { |
| if ( event.button != 1 ) { |
| return; |
| } |
| if ( this.text.getEditable() ) { |
| return; |
| } |
| this.text.selectAll(); |
| break; |
| } |
| case SWT.Traverse: { |
| switch (event.detail) { |
| case SWT.TRAVERSE_RETURN: |
| case SWT.TRAVERSE_ARROW_PREVIOUS: |
| case SWT.TRAVERSE_ARROW_NEXT: |
| // The enter causes default selection and |
| // the arrow keys are used to manipulate the list contents so |
| // do not use them for traversal. |
| event.doit = false; |
| break; |
| } |
| |
| Event e = new Event(); |
| e.time = event.time; |
| e.detail = event.detail; |
| e.doit = event.doit; |
| e.character = event.character; |
| e.keyCode = event.keyCode; |
| notifyListeners(SWT.Traverse, e); |
| event.doit = e.doit; |
| event.detail = e.detail; |
| break; |
| } |
| } |
| } |
| } |
