diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CCombo.java')
| -rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CCombo.java | 1461 |
1 files changed, 0 insertions, 1461 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CCombo.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CCombo.java deleted file mode 100755 index ec7b4462e5..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CCombo.java +++ /dev/null @@ -1,1461 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2006 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 - *******************************************************************************/ -package org.eclipse.swt.custom; - - -import org.eclipse.swt.*; -import org.eclipse.swt.graphics.*; -import org.eclipse.swt.events.*; -import org.eclipse.swt.widgets.*; -import org.eclipse.swt.accessibility.*; - -/** - * 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> - * 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>Selection</dd> - * </dl> - */ -public final class CCombo extends Composite { - - Text text; - List list; - int visibleItemCount = 5; - Shell popup; - Button arrow; - boolean hasFocus; - Listener listener, filter; - Color foreground, background; - Font font; - -/** - * 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 CCombo (Composite parent, int style) { - super (parent, style = checkStyle (style)); - - int textStyle = SWT.SINGLE; - if ((style & SWT.READ_ONLY) != 0) textStyle |= SWT.READ_ONLY; - if ((style & SWT.FLAT) != 0) textStyle |= SWT.FLAT; - text = new Text (this, textStyle); - int arrowStyle = SWT.ARROW | SWT.DOWN; - if ((style & SWT.FLAT) != 0) arrowStyle |= SWT.FLAT; - arrow = new Button (this, arrowStyle); - - listener = new Listener () { - public void handleEvent (Event event) { - if (popup == event.widget) { - popupEvent (event); - return; - } - if (text == event.widget) { - textEvent (event); - return; - } - if (list == event.widget) { - listEvent (event); - return; - } - if (arrow == event.widget) { - arrowEvent (event); - return; - } - if (CCombo.this == event.widget) { - comboEvent (event); - return; - } - if (getShell () == event.widget) { - handleFocus (SWT.FocusOut); - } - } - }; - filter = new Listener() { - public void handleEvent(Event event) { - Shell shell = ((Control)event.widget).getShell (); - if (shell == CCombo.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], listener); - - int [] textEvents = {SWT.KeyDown, SWT.KeyUp, SWT.MenuDetect, SWT.Modify, SWT.MouseDown, SWT.MouseUp, SWT.Traverse, SWT.FocusIn}; - for (int i=0; i<textEvents.length; i++) text.addListener (textEvents [i], listener); - - int [] arrowEvents = {SWT.Selection, SWT.FocusIn}; - for (int i=0; i<arrowEvents.length; i++) arrow.addListener (arrowEvents [i], 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); - 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); - 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 receiver's selection changes, 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 - * - * @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); -} -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 (); - text.clearSelection (); - list.deselectAll (); -} -void comboEvent (Event event) { - switch (event.type) { - case SWT.Dispose: - if (popup != null && !popup.isDisposed ()) { - list.removeListener (SWT.Dispose, listener); - popup.dispose (); - } - Shell shell = getShell (); - shell.removeListener (SWT.Deactivate, listener); - Display display = getDisplay (); - display.removeFilter (SWT.FocusIn, filter); - popup = null; - text = null; - list = null; - 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 = list.getItems (); - int textWidth = 0; - GC gc = new GC (text); - 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 = text.computeSize (SWT.DEFAULT, SWT.DEFAULT, changed); - Point arrowSize = arrow.computeSize (SWT.DEFAULT, SWT.DEFAULT, changed); - Point listSize = 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); -} -void createPopup(String[] items, int selectionIndex) { - // create shell and list - 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; - list = new List (popup, listStyle); - if (font != null) list.setFont (font); - if (foreground != null) list.setForeground (foreground); - if (background != null) list.setBackground (background); - - int [] popupEvents = {SWT.Close, SWT.Paint, SWT.Deactivate}; - for (int i=0; i<popupEvents.length; i++) popup.addListener (popupEvents [i], 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++) list.addListener (listEvents [i], listener); - - if (items != null) list.setItems (items); - if (selectionIndex != -1) list.setSelection (selectionIndex); -} -/** - * 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 (); - 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 (); - list.deselectAll (); -} -void dropDown (boolean drop) { - if (drop == isDropped ()) return; - if (!drop) { - popup.setVisible (false); - if (!isDisposed ()&& arrow.isFocusControl()) { - text.setFocus(); - } - return; - } - - if (getShell() != popup.getParent ()) { - String[] items = list.getItems (); - int selectionIndex = list.getSelectionIndex (); - list.removeListener (SWT.Dispose, listener); - popup.dispose(); - popup = null; - list = null; - createPopup (items, selectionIndex); - } - - Point size = getSize (); - int itemCount = list.getItemCount (); - itemCount = (itemCount == 0) ? visibleItemCount : Math.min(visibleItemCount, itemCount); - int itemHeight = list.getItemHeight () * itemCount; - Point listSize = list.computeSize (SWT.DEFAULT, itemHeight, false); - list.setBounds (1, 1, Math.max (size.x - 2, listSize.x), listSize.y); - - int index = list.getSelectionIndex (); - if (index != -1) list.setTopIndex (index); - Display display = getDisplay (); - Rectangle listRect = 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; - popup.setBounds (x, y, width, height); - popup.setVisible (true); - 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 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 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 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 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 list.getItems (); -} -public Menu getMenu() { - return 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 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 list.getSelectionIndex (); -} -public int getStyle () { - int style = super.getStyle (); - style &= ~SWT.READ_ONLY; - if (!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 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 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 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 visibleItemCount; -} -void handleFocus (int type) { - if (isDisposed ()) return; - switch (type) { - case SWT.FocusIn: { - if (hasFocus) return; - if (getEditable ()) text.selectAll (); - hasFocus = true; - Shell shell = getShell (); - shell.removeListener (SWT.Deactivate, listener); - shell.addListener (SWT.Deactivate, listener); - Display display = getDisplay (); - display.removeFilter (SWT.FocusIn, filter); - display.addFilter (SWT.FocusIn, filter); - Event e = new Event (); - notifyListeners (SWT.FocusIn, e); - break; - } - case SWT.FocusOut: { - if (!hasFocus) return; - Control focusControl = getDisplay ().getFocusControl (); - if (focusControl == arrow || focusControl == list || focusControl == text) return; - hasFocus = false; - Shell shell = getShell (); - shell.removeListener(SWT.Deactivate, listener); - Display display = getDisplay (); - display.removeFilter (SWT.FocusIn, 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 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 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); - text.getAccessible ().addAccessibleListener (accessibleAdapter); - list.getAccessible ().addAccessibleListener (accessibleAdapter); - - 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 = text.getCaretPosition (); - } - public void getSelectionRange(AccessibleTextEvent e) { - Point sel = 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 = 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 (); - } - }); - - text.getAccessible ().addAccessibleControlListener (new AccessibleControlAdapter () { - public void getRole (AccessibleControlEvent e) { - e.detail = text.getEditable () ? ACC.ROLE_TEXT : ACC.ROLE_LABEL; - } - }); - - 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 popup.getVisible (); -} -public boolean isFocusControl () { - checkWidget(); - if (text.isFocusControl () || arrow.isFocusControl () || list.isFocusControl () || 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 = arrow.computeSize (SWT.DEFAULT, height, changed); - text.setBounds (0, 0, width - arrowSize.x, height); - arrow.setBounds (width - arrowSize.x, 0, arrowSize.x, arrowSize.y); -} -void listEvent (Event event) { - switch (event.type) { - case SWT.Dispose: - if (getShell () != popup.getParent ()) { - String[] items = list.getItems (); - int selectionIndex = list.getSelectionIndex (); - popup = null; - list = null; - createPopup (items, 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 = list.getSelectionIndex (); - if (index == -1) return; - text.setText (list.getItem (index)); - text.selectAll (); - 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); - } - // 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 popupEvent(Event event) { - switch (event.type) { - case SWT.Paint: - // draw black rectangle around list - Rectangle listRect = 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: - dropDown (false); - break; - } -} -public void redraw () { - super.redraw(); - text.redraw(); - arrow.redraw(); - if (popup.isVisible()) 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(); - 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(); - 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); - 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(); - text.setText (""); //$NON-NLS-1$ - 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 receiver's selection changes. - * - * @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) { - list.deselectAll (); - text.setText (""); //$NON-NLS-1$ - return; - } - if (0 <= index && index < list.getItemCount()) { - if (index != getSelectionIndex()) { - text.setText (list.getItem (index)); - text.selectAll (); - list.select (index); - list.showSelection (); - } - } -} -public void setBackground (Color color) { - super.setBackground(color); - background = color; - if (text != null) text.setBackground(color); - if (list != null) list.setBackground(color); - if (arrow != null) 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 (); - text.setEditable(editable); -} -public void setEnabled (boolean enabled) { - super.setEnabled(enabled); - if (popup != null) popup.setVisible (false); - if (text != null) text.setEnabled(enabled); - if (arrow != null) arrow.setEnabled(enabled); -} -public boolean setFocus () { - checkWidget(); - return text.setFocus (); -} -public void setFont (Font font) { - super.setFont (font); - this.font = font; - text.setFont (font); - list.setFont (font); - internalLayout (true); -} -public void setForeground (Color color) { - super.setForeground(color); - foreground = color; - if (text != null) text.setForeground(color); - if (list != null) list.setForeground(color); - if (arrow != null) 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(); - 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 (); - list.setItems (items); - if (!text.getEditable ()) 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; -} -public void setMenu(Menu menu) { - 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); - 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 = list.indexOf (string); - if (index == -1) { - list.deselectAll (); - text.setText (string); - return; - } - text.setText (string); - text.selectAll (); - list.setSelection (index); - 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(); - text.setTextLimit (limit); -} - -public void setToolTipText (String string) { - checkWidget(); - super.setToolTipText(string); - arrow.setToolTipText (string); - text.setToolTipText (string); -} - -public void setVisible (boolean visible) { - super.setVisible(visible); - if (!visible) 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; - 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.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 (); - 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.MenuDetect: { - Event e = new Event (); - e.time = event.time; - notifyListeners (SWT.MenuDetect, e); - break; - } - case SWT.Modify: { - list.deselectAll (); - Event e = new Event (); - e.time = event.time; - notifyListeners (SWT.Modify, e); - break; - } - case SWT.MouseDown: { - if (event.button != 1) return; - if (text.getEditable ()) return; - boolean dropped = isDropped (); - text.selectAll (); - if (!dropped) setFocus (); - dropDown (!dropped); - break; - } - case SWT.MouseUp: { - if (event.button != 1) return; - if (text.getEditable ()) return; - 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; - } - } -} -} |