| /******************************************************************************* |
| * Copyright (c) 2000, 2008 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 Schindl <tom.schindl@bestsolution.at> - bugfix in 174739 |
| * Konstantin Komissarchik - mproving behavior in the read-only case |
| ******************************************************************************/ |
| |
| package org.eclipse.wst.common.project.facet.ui.internal.util; |
| |
| import java.text.MessageFormat; // Not using ICU to support standalone JFace scenario |
| import java.util.ArrayList; |
| import java.util.EventListener; |
| |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.jface.viewers.CellEditor; |
| import org.eclipse.swt.SWT; |
| 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.FocusAdapter; |
| import org.eclipse.swt.events.FocusEvent; |
| import org.eclipse.swt.events.KeyAdapter; |
| import org.eclipse.swt.events.KeyEvent; |
| import org.eclipse.swt.events.ModifyListener; |
| import org.eclipse.swt.events.SelectionAdapter; |
| import org.eclipse.swt.events.SelectionEvent; |
| import org.eclipse.swt.events.SelectionListener; |
| import org.eclipse.swt.events.TraverseEvent; |
| import org.eclipse.swt.events.TraverseListener; |
| 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.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.Layout; |
| import org.eclipse.swt.widgets.List; |
| import org.eclipse.swt.widgets.Listener; |
| import org.eclipse.swt.widgets.Menu; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.swt.widgets.Text; |
| import org.eclipse.swt.widgets.TypedListener; |
| |
| /** |
| * A cell editor that presents a list of items in a combo box. |
| * The cell editor's value is the zero-based index of the selected |
| * item. |
| * <p> |
| * This class may be instantiated; it is not intended to be subclassed. |
| * </p> |
| */ |
| |
| // The code contained in this file has been copied from SWT/JFace to experiment |
| // with improving behavior of the ComboBoxCellEditor in the read-only case. |
| // The changes made to the code have been annotated with "kosta" comments. |
| // Eventually these should be converted into patches for incorporation back |
| // into SWT/JFace. |
| |
| public class ReadOnlyComboBoxCellEditor extends CellEditor { |
| |
| /** |
| * The list of items to present in the combo box. |
| */ |
| private String[] items; |
| |
| /** |
| * The zero-based index of the selected item. |
| */ |
| int selection; |
| |
| /** |
| * The custom combo box control. |
| */ |
| CustomCCombo comboBox; |
| |
| /** |
| * Default ComboBoxCellEditor style |
| */ |
| private static final int defaultStyle = SWT.NONE; |
| |
| /** |
| * Creates a new cell editor with no control and no st of choices. Initially, |
| * the cell editor has no cell validator. |
| * |
| * @since 2.1 |
| * @see CellEditor#setStyle |
| * @see CellEditor#create |
| * @see ReadOnlyComboBoxCellEditor#setItems |
| * @see CellEditor#dispose |
| */ |
| public ReadOnlyComboBoxCellEditor() { |
| setStyle(defaultStyle); |
| } |
| |
| /** |
| * Creates a new cell editor with a combo containing the given |
| * list of choices and parented under the given control. The cell |
| * editor value is the zero-based index of the selected item. |
| * Initially, the cell editor has no cell validator and |
| * the first item in the list is selected. |
| * |
| * @param parent the parent control |
| * @param items the list of strings for the combo box |
| */ |
| public ReadOnlyComboBoxCellEditor(Composite parent, String[] items) { |
| this(parent, items, defaultStyle); |
| } |
| |
| /** |
| * Creates a new cell editor with a combo containing the given |
| * list of choices and parented under the given control. The cell |
| * editor value is the zero-based index of the selected item. |
| * Initially, the cell editor has no cell validator and |
| * the first item in the list is selected. |
| * |
| * @param parent the parent control |
| * @param items the list of strings for the combo box |
| * @param style the style bits |
| * @since 2.1 |
| */ |
| public ReadOnlyComboBoxCellEditor(Composite parent, String[] items, int style) { |
| super(parent, style); |
| setItems(items); |
| } |
| |
| /** |
| * Returns the list of choices for the combo box |
| * |
| * @return the list of choices for the combo box |
| */ |
| public String[] getItems() { |
| return this.items; |
| } |
| |
| /** |
| * Sets the list of choices for the combo box |
| * |
| * @param items the list of choices for the combo box |
| */ |
| public void setItems(String[] items) { |
| Assert.isNotNull(items); |
| this.items = items; |
| populateComboBoxItems(); |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on CellEditor. |
| */ |
| protected Control createControl(Composite parent) { |
| |
| this.comboBox = new CustomCCombo(parent, getStyle()); |
| this.comboBox.setFont(parent.getFont()); |
| |
| populateComboBoxItems(); |
| |
| this.comboBox.addKeyListener(new KeyAdapter() { |
| // hook key pressed - see PR 14201 |
| public void keyPressed(KeyEvent e) { |
| keyReleaseOccured(e); |
| } |
| }); |
| |
| this.comboBox.addSelectionListener(new SelectionAdapter() { |
| public void widgetDefaultSelected(SelectionEvent event) { |
| applyEditorValueAndDeactivate(); |
| } |
| |
| public void widgetSelected(SelectionEvent event) { |
| ReadOnlyComboBoxCellEditor.this.selection = ReadOnlyComboBoxCellEditor.this.comboBox.getSelectionIndex(); |
| } |
| }); |
| |
| this.comboBox.addTraverseListener(new TraverseListener() { |
| public void keyTraversed(TraverseEvent e) { |
| if (e.detail == SWT.TRAVERSE_ESCAPE |
| || e.detail == SWT.TRAVERSE_RETURN) { |
| e.doit = false; |
| } |
| } |
| }); |
| |
| this.comboBox.addFocusListener(new FocusAdapter() { |
| public void focusLost(FocusEvent e) { |
| ReadOnlyComboBoxCellEditor.this.focusLost(); |
| } |
| }); |
| |
| this.comboBox.addSelectionFinalizedListener(new CustomCCombo.SelectionFinalizedListener() { // kosta |
| public void handleEvent() { |
| handleSelectionFinalized(); |
| } |
| }); |
| |
| return this.comboBox; |
| } |
| |
| /** |
| * The <code>ComboBoxCellEditor</code> implementation of |
| * this <code>CellEditor</code> framework method returns |
| * the zero-based index of the current selection. |
| * |
| * @return the zero-based index of the current selection wrapped |
| * as an <code>Integer</code> |
| */ |
| protected Object doGetValue() { |
| return new Integer(this.selection); |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on CellEditor. |
| */ |
| protected void doSetFocus() { |
| this.comboBox.setFocus(); |
| this.comboBox.dropDown( true ); // kosta |
| } |
| |
| /** |
| * The <code>ComboBoxCellEditor</code> implementation of |
| * this <code>CellEditor</code> framework method sets the |
| * minimum width of the cell. The minimum width is 10 characters |
| * if <code>comboBox</code> is not <code>null</code> or <code>disposed</code> |
| * else it is 60 pixels to make sure the arrow button and some text is visible. |
| * The list of CCombo will be wide enough to show its longest item. |
| */ |
| public LayoutData getLayoutData() { |
| LayoutData layoutData = super.getLayoutData(); |
| if ((this.comboBox == null) || this.comboBox.isDisposed()) { |
| layoutData.minimumWidth = 60; |
| } else { |
| // make the comboBox 10 characters wide |
| GC gc = new GC(this.comboBox); |
| layoutData.minimumWidth = (gc.getFontMetrics() |
| .getAverageCharWidth() * 10) + 10; |
| gc.dispose(); |
| } |
| return layoutData; |
| } |
| |
| /** |
| * The <code>ComboBoxCellEditor</code> implementation of |
| * this <code>CellEditor</code> framework method |
| * accepts a zero-based index of a selection. |
| * |
| * @param value the zero-based index of the selection wrapped |
| * as an <code>Integer</code> |
| */ |
| protected void doSetValue(Object value) { |
| Assert.isTrue(this.comboBox != null && (value instanceof Integer)); |
| this.selection = ((Integer) value).intValue(); |
| this.comboBox.select(this.selection); |
| } |
| |
| /** |
| * Updates the list of choices for the combo box for the current control. |
| */ |
| private void populateComboBoxItems() { |
| if (this.comboBox != null && this.items != null) { |
| this.comboBox.removeAll(); |
| for (int i = 0; i < this.items.length; i++) { |
| this.comboBox.add(this.items[i], i); |
| } |
| |
| setValueValid(true); |
| this.selection = 0; |
| } |
| } |
| |
| /** |
| * Applies the currently selected value and deactivates the cell editor |
| */ |
| void applyEditorValueAndDeactivate() { |
| // must set the selection before getting value |
| this.selection = this.comboBox.getSelectionIndex(); |
| Object newValue = doGetValue(); |
| markDirty(); |
| boolean isValid = isCorrect(newValue); |
| setValueValid(isValid); |
| |
| if (!isValid) { |
| // Only format if the 'index' is valid |
| if (this.items.length > 0 && this.selection >= 0 && this.selection < this.items.length) { |
| // try to insert the current value into the error message. |
| setErrorMessage(MessageFormat.format(getErrorMessage(), |
| new Object[] { this.items[this.selection] })); |
| } |
| else { |
| // Since we don't have a valid index, assume we're using an 'edit' |
| // combo so format using its text value |
| setErrorMessage(MessageFormat.format(getErrorMessage(), |
| new Object[] { this.comboBox.getText() })); |
| } |
| } |
| |
| fireApplyEditorValue(); |
| deactivate(); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * @see org.eclipse.jface.viewers.CellEditor#focusLost() |
| */ |
| protected void focusLost() { |
| if (isActivated()) { |
| applyEditorValueAndDeactivate(); |
| } |
| } |
| |
| /* |
| * (non-Javadoc) |
| * @see org.eclipse.jface.viewers.CellEditor#keyReleaseOccured(org.eclipse.swt.events.KeyEvent) |
| */ |
| protected void keyReleaseOccured(KeyEvent keyEvent) { |
| if (keyEvent.character == '\u001b') { // Escape character |
| fireCancelEditor(); |
| } else if (keyEvent.character == '\t') { // tab key |
| applyEditorValueAndDeactivate(); |
| } |
| } |
| |
| protected void handleSelectionFinalized() // kosta |
| { |
| applyEditorValueAndDeactivate(); |
| } |
| |
| /** |
| * The CCombo class represents a selectable user interface object |
| * that combines a text field and a list and issues notification |
| * when an item is selected from the list. |
| * <p> |
| * CCombo was written to work around certain limitations in the native |
| * combo box. Specifically, on win32, the height of a CCombo can be set; |
| * attempts to set the height of a Combo are ignored. CCombo can be used |
| * anywhere that having the increased flexibility is more important than |
| * getting native L&F, but the decision should not be taken lightly. |
| * There is no is no strict requirement that CCombo look or behave |
| * the same as the native combo box. |
| * </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> |
| * <dd>BORDER, READ_ONLY, FLAT</dd> |
| * <dt><b>Events:</b> |
| * <dd>DefaultSelection, Modify, Selection, Verify</dd> |
| * </dl> |
| */ |
| private static final class CustomCCombo extends Composite { |
| |
| public static class SelectionFinalizedListener implements EventListener // kosta |
| { |
| public void handleEvent() |
| { |
| } |
| } |
| |
| Text text; |
| List list; |
| int visibleItemCount = 5; |
| Shell popup; |
| Button arrow; |
| boolean hasFocus; |
| Listener listener, filter; |
| Color foreground, background; |
| Font font; |
| java.util.List<SelectionFinalizedListener> selectionFinalizedListeners; // kosta |
| |
| |
| /** |
| * 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 widget which will be the parent of the new instance (cannot be null) |
| * @param style the style of widget 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> |
| * </ul> |
| * |
| * @see SWT#BORDER |
| * @see SWT#READ_ONLY |
| * @see SWT#FLAT |
| * @see Widget#getStyle() |
| */ |
| public CustomCCombo (Composite parent, int style) { |
| super (parent, style = checkStyle (style)); |
| |
| this.selectionFinalizedListeners = new ArrayList<SelectionFinalizedListener>(); // kosta |
| |
| int textStyle = SWT.SINGLE; |
| if ((style & SWT.READ_ONLY) != 0) textStyle |= SWT.READ_ONLY; |
| if ((style & SWT.FLAT) != 0) textStyle |= SWT.FLAT; |
| this.text = new Text (this, textStyle); |
| int arrowStyle = SWT.ARROW | SWT.DOWN; |
| if ((style & SWT.FLAT) != 0) arrowStyle |= SWT.FLAT; |
| this.arrow = new Button (this, arrowStyle); |
| |
| this.listener = new Listener () { |
| public void handleEvent (Event event) { |
| if (CustomCCombo.this.popup == event.widget) { |
| popupEvent (event); |
| return; |
| } |
| if (CustomCCombo.this.text == event.widget) { |
| textEvent (event); |
| return; |
| } |
| if (CustomCCombo.this.list == event.widget) { |
| listEvent (event); |
| return; |
| } |
| if (CustomCCombo.this.arrow == event.widget) { |
| arrowEvent (event); |
| return; |
| } |
| if (CustomCCombo.this == event.widget) { |
| comboEvent (event); |
| return; |
| } |
| if (getShell () == event.widget) { |
| handleFocus (SWT.FocusOut); |
| } |
| } |
| }; |
| this.filter = new Listener() { |
| public void handleEvent(Event event) { |
| Shell shell = ((Control)event.widget).getShell (); |
| if (shell == CustomCCombo.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.DefaultSelection, SWT.KeyDown, SWT.KeyUp, SWT.MenuDetect, SWT.Modify, SWT.MouseDown, SWT.MouseUp, SWT.Traverse, SWT.FocusIn, SWT.Verify}; |
| 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(null, -1); |
| initAccessible(); |
| } |
| 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; |
| } |
| /** |
| * 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) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
| this.list.add (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) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
| this.list.add (string, index); |
| } |
| /** |
| * 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 combo's list selection changes. |
| * <code>widgetDefaultSelected</code> is typically called when ENTER is pressed the combo's text area. |
| * </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) 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 3.3 |
| */ |
| public void addVerifyListener (VerifyListener listener) { |
| checkWidget(); |
| if (listener == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Verify,typedListener); |
| } |
| |
| public void addSelectionFinalizedListener( SelectionFinalizedListener listener ) // kosta |
| { |
| checkWidget(); |
| if (listener == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
| this.selectionFinalizedListeners.add( listener ); |
| } |
| |
| public void removeDropDownListener( SelectionFinalizedListener listener ) // kosta |
| { |
| checkWidget(); |
| if (listener == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
| this.selectionFinalizedListeners.remove( listener ); |
| } |
| |
| private void notifySelectionFinalizedListeners() // kosta |
| { |
| checkWidget(); |
| |
| for( SelectionFinalizedListener listener : this.selectionFinalizedListeners ) |
| { |
| listener.handleEvent(); |
| } |
| } |
| |
| void arrowEvent (Event event) { |
| switch (event.type) { |
| case SWT.FocusIn: { |
| handleFocus (SWT.FocusIn); |
| break; |
| } |
| case SWT.Selection: { |
| dropDown (!isDropped ()); |
| break; |
| } |
| } |
| } |
| /** |
| * Sets the selection in the receiver's text field to an empty |
| * selection starting just before the first character. If the |
| * text field is editable, this has the effect of placing the |
| * i-beam at the start of the text. |
| * <p> |
| * Note: To clear the selected items in the receiver's list, |
| * use <code>deselectAll()</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 #deselectAll |
| */ |
| public void clearSelection () { |
| checkWidget (); |
| this.text.clearSelection (); |
| this.list.deselectAll (); |
| } |
| void comboEvent (Event event) { |
| switch (event.type) { |
| case SWT.Dispose: |
| if (this.popup != null && !this.popup.isDisposed ()) { |
| this.list.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.text = null; |
| this.list = null; |
| this.arrow = null; |
| break; |
| case SWT.Move: |
| dropDown (false); |
| break; |
| case SWT.Resize: |
| internalLayout (false); |
| break; |
| } |
| } |
| |
| public Point computeSize (int wHint, int hHint, boolean changed) { |
| checkWidget (); |
| int width = 0, height = 0; |
| String[] items = this.list.getItems (); |
| GC gc = new GC (this.text); |
| int spacer = gc.stringExtent (" ").x; //$NON-NLS-1$ |
| int textWidth = gc.stringExtent (this.text.getText ()).x; |
| for (int i = 0; i < items.length; i++) { |
| textWidth = Math.max (gc.stringExtent (items[i]).x, textWidth); |
| } |
| gc.dispose (); |
| Point textSize = this.text.computeSize (SWT.DEFAULT, SWT.DEFAULT, changed); |
| Point arrowSize = this.arrow.computeSize (SWT.DEFAULT, SWT.DEFAULT, changed); |
| Point listSize = this.list.computeSize (SWT.DEFAULT, SWT.DEFAULT, changed); |
| int borderWidth = getBorderWidth (); |
| |
| height = Math.max (textSize.y, arrowSize.y); |
| width = Math.max (textWidth + 2*spacer + arrowSize.x + 2*borderWidth, listSize.x); |
| if (wHint != SWT.DEFAULT) width = wHint; |
| if (hHint != SWT.DEFAULT) height = hHint; |
| return new Point (width + 2*borderWidth, height + 2*borderWidth); |
| } |
| /** |
| * Copies the selected text. |
| * <p> |
| * The current selection is copied to the clipboard. |
| * </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> |
| * |
| * @since 3.3 |
| */ |
| public void copy () { |
| checkWidget (); |
| this.text.copy (); |
| } |
| void createPopup(String[] items, 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; |
| this.list = new List (this.popup, listStyle); |
| if (this.font != null) this.list.setFont (this.font); |
| if (this.foreground != null) this.list.setForeground (this.foreground); |
| if (this.background != null) this.list.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.list.addListener (listEvents [i], this.listener); |
| |
| if (items != null) this.list.setItems (items); |
| if (selectionIndex != -1) this.list.setSelection (selectionIndex); |
| } |
| /** |
| * Cuts the selected text. |
| * <p> |
| * The current selection is first copied to the |
| * clipboard and then deleted from the widget. |
| * </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> |
| * |
| * @since 3.3 |
| */ |
| public void cut () { |
| checkWidget (); |
| this.text.cut (); |
| } |
| /** |
| * 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.list.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.list.deselectAll (); |
| } |
| void dropDown (boolean drop) { |
| dropDown(drop, true); |
| } |
| void dropDown (boolean drop, boolean focus) { |
| /*try |
| { |
| throw new RuntimeException(); |
| } |
| catch( Exception e ) |
| { |
| e.printStackTrace(); |
| }*/ |
| if (drop == isDropped ()) return; |
| if (!drop) { |
| this.popup.setVisible (false); |
| if (!isDisposed ()&& this.arrow.isFocusControl() && focus) { |
| this.text.setFocus(); |
| } |
| return; |
| } |
| |
| if (getShell() != this.popup.getParent ()) { |
| String[] items = this.list.getItems (); |
| int selectionIndex = this.list.getSelectionIndex (); |
| this.list.removeListener (SWT.Dispose, this.listener); |
| this.popup.dispose(); |
| this.popup = null; |
| this.list = null; |
| createPopup (items, selectionIndex); |
| } |
| |
| Point size = getSize (); |
| int itemCount = this.list.getItemCount (); |
| itemCount = (itemCount == 0) ? this.visibleItemCount : Math.min(this.visibleItemCount, itemCount); |
| int itemHeight = this.list.getItemHeight () * itemCount; |
| Point listSize = this.list.computeSize (SWT.DEFAULT, itemHeight, false); |
| this.list.setBounds (1, 1, Math.max (size.x - 2, listSize.x), listSize.y); |
| |
| int index = this.list.getSelectionIndex (); |
| if (index != -1) this.list.setTopIndex (index); |
| Display display = getDisplay (); |
| Rectangle listRect = this.list.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; |
| if (x + width > displayRect.x + displayRect.width) x = displayRect.x + displayRect.width - listRect.width; |
| this.popup.setBounds (x, y, width, height); |
| this.popup.setVisible (true); |
| if (focus) this.list.setFocus (); |
| } |
| /* |
| * Return the lowercase of the first non-'&' character following |
| * an '&' character in the given string. If there are no '&' |
| * characters in the given string, return '\0'. |
| */ |
| char _findMnemonic (String string) { |
| if (string == null) return '\0'; |
| 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 Character.toLowerCase (string.charAt (index)); |
| index++; |
| } while (index < length); |
| return '\0'; |
| } |
| /* |
| * Return the Label immediately preceding the receiver in the z-order, |
| * or null if none. |
| */ |
| Label getAssociatedLabel () { |
| Control[] siblings = getParent ().getChildren (); |
| for (int i = 0; i < siblings.length; i++) { |
| if (siblings [i] == this) { |
| if (i > 0 && siblings [i-1] instanceof Label) { |
| return (Label) siblings [i-1]; |
| } |
| } |
| } |
| return null; |
| } |
| public Control [] getChildren () { |
| checkWidget(); |
| return new Control [0]; |
| } |
| /** |
| * Gets the editable state. |
| * |
| * @return whether or not the receiver 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(); |
| } |
| /** |
| * 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.list.getItem (index); |
| } |
| /** |
| * 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.list.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.list.getItemHeight (); |
| } |
| /** |
| * Returns an 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 String [] getItems () { |
| checkWidget (); |
| return this.list.getItems (); |
| } |
| /** |
| * Returns <code>true</code> if the receiver's list is visible, |
| * and <code>false</code> otherwise. |
| * <p> |
| * If one of the receiver's ancestors is not visible or some |
| * other condition makes the receiver not visible, this method |
| * may still indicate that it is considered visible even though |
| * it may not actually be showing. |
| * </p> |
| * |
| * @return the receiver's list's visibility state |
| * |
| * @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 3.4 |
| */ |
| public boolean getListVisible () { |
| checkWidget (); |
| return isDropped(); |
| } |
| public Menu getMenu() { |
| return this.text.getMenu(); |
| } |
| /** |
| * Returns a <code>Point</code> whose x coordinate is the start |
| * of the selection in the receiver's text field, and whose y |
| * coordinate is the end of the selection. The returned values |
| * are zero-relative. An "empty" selection as indicated by |
| * the the x and y coordinates having the same value. |
| * |
| * @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.getSelection (); |
| } |
| /** |
| * 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.list.getSelectionIndex (); |
| } |
| public int getStyle () { |
| int style = super.getStyle (); |
| style &= ~SWT.READ_ONLY; |
| if (!this.text.getEditable()) style |= SWT.READ_ONLY; |
| return style; |
| } |
| /** |
| * Returns a string containing a copy of the contents of the |
| * receiver's text field. |
| * |
| * @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.getLineHeight (); |
| } |
| /** |
| * Returns the maximum number of characters that the receiver's |
| * text field is capable of holding. If this has not been changed |
| * by <code>setTextLimit()</code>, it will be the constant |
| * <code>Combo.LIMIT</code>. |
| * |
| * @return the text limit |
| * |
| * @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 getTextLimit () { |
| checkWidget (); |
| return this.text.getTextLimit (); |
| } |
| /** |
| * Gets the number of items that are visible in the drop |
| * down portion of the receiver's list. |
| * |
| * @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.visibleItemCount; |
| } |
| 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.list || focusControl == this.text) 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; |
| } |
| } |
| } |
| /** |
| * 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 this.list.indexOf (string); |
| } |
| /** |
| * 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 begin 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); |
| return this.list.indexOf (string, start); |
| } |
| |
| void initAccessible() { |
| AccessibleAdapter accessibleAdapter = new AccessibleAdapter () { |
| public void getName (AccessibleEvent e) { |
| String name = null; |
| Label label = getAssociatedLabel (); |
| if (label != null) { |
| name = stripMnemonic (label.getText()); |
| } |
| e.result = name; |
| } |
| public void getKeyboardShortcut(AccessibleEvent e) { |
| String shortcut = null; |
| Label label = getAssociatedLabel (); |
| if (label != null) { |
| String text = label.getText (); |
| if (text != null) { |
| char mnemonic = _findMnemonic (text); |
| if (mnemonic != '\0') { |
| shortcut = "Alt+"+mnemonic; //$NON-NLS-1$ |
| } |
| } |
| } |
| e.result = shortcut; |
| } |
| public void getHelp (AccessibleEvent e) { |
| e.result = getToolTipText (); |
| } |
| }; |
| getAccessible ().addAccessibleListener (accessibleAdapter); |
| this.text.getAccessible ().addAccessibleListener (accessibleAdapter); |
| this.list.getAccessible ().addAccessibleListener (accessibleAdapter); |
| |
| this.arrow.getAccessible ().addAccessibleListener (new AccessibleAdapter() { |
| public void getName (AccessibleEvent e) { |
| e.result = isDropped () ? SWT.getMessage ("SWT_Close") : SWT.getMessage ("SWT_Open"); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| public void getKeyboardShortcut (AccessibleEvent e) { |
| e.result = "Alt+Down Arrow"; //$NON-NLS-1$ |
| } |
| public void getHelp (AccessibleEvent e) { |
| e.result = getToolTipText (); |
| } |
| }); |
| |
| getAccessible().addAccessibleTextListener (new AccessibleTextAdapter() { |
| public void getCaretOffset (AccessibleTextEvent e) { |
| e.offset = CustomCCombo.this.text.getCaretPosition (); |
| } |
| public void getSelectionRange(AccessibleTextEvent e) { |
| Point sel = CustomCCombo.this.text.getSelection(); |
| e.offset = sel.x; |
| e.length = sel.y - sel.x; |
| } |
| }); |
| |
| getAccessible().addAccessibleControlListener (new AccessibleControlAdapter() { |
| public void getChildAtPoint (AccessibleControlEvent e) { |
| Point testPoint = toControl (e.x, e.y); |
| if (getBounds ().contains (testPoint)) { |
| e.childID = ACC.CHILDID_SELF; |
| } |
| } |
| |
| public void getLocation (AccessibleControlEvent e) { |
| Rectangle location = getBounds (); |
| Point pt = getParent().toDisplay (location.x, location.y); |
| e.x = pt.x; |
| e.y = pt.y; |
| e.width = location.width; |
| e.height = location.height; |
| } |
| |
| public void getChildCount (AccessibleControlEvent e) { |
| e.detail = 0; |
| } |
| |
| public void getRole (AccessibleControlEvent e) { |
| e.detail = ACC.ROLE_COMBOBOX; |
| } |
| |
| public void getState (AccessibleControlEvent e) { |
| e.detail = ACC.STATE_NORMAL; |
| } |
| |
| public void getValue (AccessibleControlEvent e) { |
| e.result = getText (); |
| } |
| }); |
| |
| this.text.getAccessible ().addAccessibleControlListener (new AccessibleControlAdapter () { |
| public void getRole (AccessibleControlEvent e) { |
| e.detail = CustomCCombo.this.text.getEditable () ? ACC.ROLE_TEXT : ACC.ROLE_LABEL; |
| } |
| }); |
| |
| this.arrow.getAccessible ().addAccessibleControlListener (new AccessibleControlAdapter() { |
| public void getDefaultAction (AccessibleControlEvent e) { |
| e.result = isDropped () ? SWT.getMessage ("SWT_Close") : SWT.getMessage ("SWT_Open"); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| }); |
| } |
| boolean isDropped () { |
| return this.popup.getVisible (); |
| } |
| public boolean isFocusControl () { |
| checkWidget(); |
| if (this.text.isFocusControl () || this.arrow.isFocusControl () || this.list.isFocusControl () || this.popup.isFocusControl ()) { |
| return true; |
| } |
| return super.isFocusControl (); |
| } |
| 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.text.setBounds (0, 0, width - arrowSize.x, height); |
| this.arrow.setBounds (width - arrowSize.x, 0, arrowSize.x, arrowSize.y); |
| } |
| void listEvent (Event event) { |
| switch (event.type) { |
| case SWT.Dispose: |
| if (getShell () != this.popup.getParent ()) { |
| String[] items = this.list.getItems (); |
| int selectionIndex = this.list.getSelectionIndex (); |
| this.popup = null; |
| this.list = null; |
| createPopup (items, selectionIndex); |
| } |
| break; |
| case SWT.FocusIn: { |
| handleFocus (SWT.FocusIn); |
| break; |
| } |
| case SWT.MouseUp: { |
| if (event.button != 1) return; |
| dropDown (false); |
| notifySelectionFinalizedListeners(); // kosta |
| break; |
| } |
| case SWT.Selection: { |
| int index = this.list.getSelectionIndex (); |
| if (index == -1) return; |
| this.text.setText (this.list.getItem (index)); |
| this.text.selectAll (); |
| this.list.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); |
| notifySelectionFinalizedListeners(); // kosta |
| } |
| // 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; |
| |
| } |
| } |
| } |
| /** |
| * Pastes text from clipboard. |
| * <p> |
| * The selected text is deleted from the widget |
| * and new text inserted from the clipboard. |
| * </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> |
| * |
| * @since 3.3 |
| */ |
| public void paste () { |
| checkWidget (); |
| this.text.paste (); |
| } |
| void popupEvent(Event event) { |
| switch (event.type) { |
| case SWT.Paint: |
| // draw black rectangle around list |
| Rectangle listRect = this.list.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: |
| /* |
| * Bug in GTK. When the arrow button is pressed the popup control receives a |
| * deactivate event and then the arrow button receives a selection event. If |
| * we hide the popup in the deactivate event, the selection event will show |
| * it again. To prevent the popup from showing again, we will let the selection |
| * event of the arrow button hide the popup. |
| * In Windows, hiding the popup during the deactivate causes the deactivate |
| * to be called twice and the selection event to be disappear. |
| */ |
| if (!"carbon".equals(SWT.getPlatform())) { //$NON-NLS-1$ |
| Point point = this.arrow.toControl(getDisplay().getCursorLocation()); |
| Point size = this.arrow.getSize(); |
| Rectangle rect = new Rectangle(0, 0, size.x, size.y); |
| if (!rect.contains(point)) |
| { |
| dropDown (false); |
| |
| final Thread thread = new Thread() //kosta |
| { |
| public void run() |
| { |
| final Runnable runnable = new Runnable() |
| { |
| public void run() |
| { |
| notifySelectionFinalizedListeners(); |
| } |
| }; |
| |
| getDisplay().syncExec( runnable ); |
| } |
| }; |
| |
| thread.start(); //kosta |
| } |
| } else { |
| dropDown(false); |
| } |
| break; |
| } |
| } |
| public void redraw () { |
| super.redraw(); |
| this.text.redraw(); |
| this.arrow.redraw(); |
| if (this.popup.isVisible()) this.list.redraw(); |
| } |
| public void redraw (int x, int y, int width, int height, boolean all) { |
| super.redraw(x, y, width, height, true); |
| } |
| |
| /** |
| * 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.list.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.list.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); |
| this.list.remove (string); |
| } |
| /** |
| * 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.list.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); |
| } |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the control is verified. |
| * |
| * @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 VerifyListener |
| * @see #addVerifyListener |
| * |
| * @since 3.3 |
| */ |
| public void removeVerifyListener (VerifyListener listener) { |
| checkWidget(); |
| if (listener == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
| removeListener(SWT.Verify, 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.list.deselectAll (); |
| this.text.setText (""); //$NON-NLS-1$ |
| return; |
| } |
| if (0 <= index && index < this.list.getItemCount()) { |
| if (index != getSelectionIndex()) { |
| this.text.setText (this.list.getItem (index)); |
| this.text.selectAll (); |
| this.list.select (index); |
| this.list.showSelection (); |
| } |
| } |
| } |
| public void setBackground (Color color) { |
| super.setBackground(color); |
| this.background = color; |
| if (this.text != null) this.text.setBackground(color); |
| if (this.list != null) this.list.setBackground(color); |
| if (this.arrow != null) this.arrow.setBackground(color); |
| } |
| /** |
| * Sets the editable state. |
| * |
| * @param editable the new editable state |
| * |
| * @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 setEditable (boolean editable) { |
| checkWidget (); |
| this.text.setEditable(editable); |
| } |
| public void setEnabled (boolean enabled) { |
| super.setEnabled(enabled); |
| if (this.popup != null) this.popup.setVisible (false); |
| if (this.text != null) this.text.setEnabled(enabled); |
| if (this.arrow != null) this.arrow.setEnabled(enabled); |
| } |
| public boolean setFocus () { |
| checkWidget(); |
| if (!isEnabled () || !isVisible ()) return false; |
| if (isFocusControl ()) return true; |
| return this.text.setFocus (); |
| } |
| public void setFont (Font font) { |
| super.setFont (font); |
| this.font = font; |
| this.text.setFont (font); |
| this.list.setFont (font); |
| internalLayout (true); |
| } |
| public void setForeground (Color color) { |
| super.setForeground(color); |
| this.foreground = color; |
| if (this.text != null) this.text.setForeground(color); |
| if (this.list != null) this.list.setForeground(color); |
| if (this.arrow != null) this.arrow.setForeground(color); |
| } |
| /** |
| * Sets the text of the item in the receiver's list at the given |
| * zero-relative index to the string argument. This is equivalent |
| * to <code>remove</code>'ing the old item at the index, and then |
| * <code>add</code>'ing the new item at that index. |
| * |
| * @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(); |
| this.list.setItem (index, string); |
| } |
| /** |
| * Sets the receiver's list 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 (); |
| this.list.setItems (items); |
| if (!this.text.getEditable ()) this.text.setText (""); //$NON-NLS-1$ |
| } |
| /** |
| * Sets the layout which is associated with the receiver to be |
| * the argument which may be null. |
| * <p> |
| * Note: No Layout can be set on this Control because it already |
| * manages the size and position of its children. |
| * </p> |
| * |
| * @param layout the receiver's new layout or null |
| * |
| * @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 setLayout (Layout layout) { |
| checkWidget (); |
| return; |
| } |
| /** |
| * Marks the receiver's list as visible if the argument is <code>true</code>, |
| * and marks it invisible otherwise. |
| * <p> |
| * If one of the receiver's ancestors is not visible or some |
| * other condition makes the receiver not visible, marking |
| * it visible may not actually cause it to be displayed. |
| * </p> |
| * |
| * @param visible the new visibility state |
| * |
| * @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 3.4 |
| */ |
| public void setListVisible (boolean visible) { |
| checkWidget (); |
| dropDown(visible, false); |
| } |
| public void setMenu(Menu menu) { |
| this.text.setMenu(menu); |
| } |
| /** |
| * Sets the selection in the receiver's text field to the |
| * range specified by the argument whose x coordinate is the |
| * start of the selection and whose y coordinate is the end |
| * of the selection. |
| * |
| * @param selection a point representing the new selection start and end |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the point 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 setSelection (Point selection) { |
| checkWidget(); |
| if (selection == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
| this.text.setSelection (selection.x, selection.y); |
| } |
| |
| /** |
| * 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 = this.list.indexOf (string); |
| if (index == -1) { |
| this.list.deselectAll (); |
| this.text.setText (string); |
| return; |
| } |
| this.text.setText (string); |
| this.text.selectAll (); |
| this.list.setSelection (index); |
| this.list.showSelection (); |
| } |
| /** |
| * Sets the maximum number of characters that the receiver's |
| * text field is capable of holding to be the argument. |
| * |
| * @param limit new text limit |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_CANNOT_BE_ZERO - if the limit is zero</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 setTextLimit (int limit) { |
| checkWidget(); |
| this.text.setTextLimit (limit); |
| } |
| |
| public void setToolTipText (String string) { |
| checkWidget(); |
| super.setToolTipText(string); |
| this.arrow.setToolTipText (string); |
| this.text.setToolTipText (string); |
| } |
| |
| public void setVisible (boolean visible) { |
| super.setVisible(visible); |
| /* |
| * At this point the widget may have been disposed in a FocusOut event. |
| * If so then do not continue. |
| */ |
| if (isDisposed ()) return; |
| if (!visible) this.popup.setVisible(false); |
| } |
| /** |
| * Sets the number of items that are visible in the drop |
| * down portion of the receiver's list. |
| * |
| * @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; |
| } |
| 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 textEvent (Event event) { |
| switch (event.type) { |
| case SWT.FocusIn: { |
| handleFocus (SWT.FocusIn); |
| break; |
| } |
| case SWT.DefaultSelection: { |
| dropDown (false); |
| Event e = new Event (); |
| e.time = event.time; |
| e.stateMask = event.stateMask; |
| notifyListeners (SWT.DefaultSelection, e); |
| break; |
| } |
| case SWT.KeyDown: { |
| Event keyEvent = new Event (); |
| keyEvent.time = event.time; |
| keyEvent.character = event.character; |
| keyEvent.keyCode = event.keyCode; |
| keyEvent.stateMask = event.stateMask; |
| notifyListeners (SWT.KeyDown, keyEvent); |
| if (isDisposed ()) break; |
| event.doit = keyEvent.doit; |
| if (!event.doit) 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); |
| } |
| if (isDisposed ()) break; |
| } |
| |
| // Further work : Need to add support for incremental search in |
| // pop up list as characters typed in text widget |
| 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); |
| event.doit = e.doit; |
| break; |
| } |
| case SWT.MenuDetect: { |
| Event e = new Event (); |
| e.time = event.time; |
| notifyListeners (SWT.MenuDetect, e); |
| break; |
| } |
| case SWT.Modify: { |
| this.list.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) { |
| //NOT SURE |
| // 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; |
| } |
| case SWT.Verify: { |
| Event e = new Event (); |
| e.text = event.text; |
| e.start = event.start; |
| e.end = event.end; |
| e.character = event.character; |
| e.keyCode = event.keyCode; |
| e.stateMask = event.stateMask; |
| notifyListeners (SWT.Verify, e); |
| event.doit = e.doit; |
| break; |
| } |
| } |
| } |
| } |
| |
| |
| |
| |
| |
| |
| |
| } |
