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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/widgets/Combo.java')
| -rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/widgets/Combo.java | 1617 |
1 files changed, 0 insertions, 1617 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/widgets/Combo.java b/bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/widgets/Combo.java deleted file mode 100755 index 2773e1b3c3..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/widgets/Combo.java +++ /dev/null @@ -1,1617 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2009 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.widgets; - - -import org.eclipse.swt.*; -import org.eclipse.swt.events.*; -import org.eclipse.swt.graphics.*; -import org.eclipse.swt.internal.cocoa.*; - -/** - * Instances of this class are controls that allow the user - * to choose an item from a list of items, or optionally - * enter a new value by typing it into an editable text - * field. Often, <code>Combo</code>s are used in the same place - * where a single selection <code>List</code> widget could - * be used but space is limited. A <code>Combo</code> takes - * less space than a <code>List</code> widget and shows - * similar information. - * <p> - * Note: Since <code>Combo</code>s can contain both a list - * and an editable text field, it is possible to confuse methods - * which access one versus the other (compare for example, - * <code>clearSelection()</code> and <code>deselectAll()</code>). - * The API documentation is careful to indicate either "the - * receiver's list" or the "the receiver's text field" to - * distinguish between the two cases. - * </p><p> - * Note that although this class is a subclass of <code>Composite</code>, - * it does not make sense to add children to it, or set a layout on it. - * </p> - * <dl> - * <dt><b>Styles:</b></dt> - * <dd>DROP_DOWN, READ_ONLY, SIMPLE</dd> - * <dt><b>Events:</b></dt> - * <dd>DefaultSelection, Modify, Selection, Verify</dd> - * </dl> - * <p> - * Note: Only one of the styles DROP_DOWN and SIMPLE may be specified. - * </p><p> - * IMPORTANT: This class is <em>not</em> intended to be subclassed. - * </p> - * - * @see List - * @see <a href="http://www.eclipse.org/swt/snippets/#combo">Combo snippets</a> - * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample</a> - * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> - * @noextend This class is not intended to be subclassed by clients. - */ -public class Combo extends Composite { - int textLimit = LIMIT; - boolean receivingFocus; - boolean ignoreVerify, ignoreSelection; - NSRange selectionRange; - - /** - * the operating system limit for the number of characters - * that the text field in an instance of this class can hold - */ - public static final int LIMIT; - - /* - * These values can be different on different platforms. - * Therefore they are not initialized in the declaration - * to stop the compiler from inlining. - */ - static { - LIMIT = 0x7FFFFFFF; - } - - -/** - * Constructs a new instance of this class given its parent - * and a style value describing its behavior and appearance. - * <p> - * The style value is either one of the style constants defined in - * class <code>SWT</code> which is applicable to instances of this - * class, or must be built by <em>bitwise OR</em>'ing together - * (that is, using the <code>int</code> "|" operator) two or more - * of those <code>SWT</code> style constants. The class description - * lists the style constants that are applicable to the class. - * Style bits are also inherited from superclasses. - * </p> - * - * @param parent a composite control which will be the parent of the new instance (cannot be null) - * @param style the style of control to construct - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> - * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> - * </ul> - * - * @see SWT#DROP_DOWN - * @see SWT#READ_ONLY - * @see SWT#SIMPLE - * @see Widget#checkSubclass - * @see Widget#getStyle - */ -public Combo (Composite parent, int style) { - super (parent, checkStyle (style)); -} - -/** - * Adds the argument to the end of the receiver's list. - * - * @param string the new item - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see #add(String,int) - */ -public void add (String string) { - checkWidget (); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - NSString str = NSString.stringWith(string); - if ((style & SWT.READ_ONLY) != 0) { - NSPopUpButton widget = (NSPopUpButton)view; - int /*long*/ selection = widget.indexOfSelectedItem(); - NSMenu nsMenu = widget.menu(); - NSMenuItem nsItem = (NSMenuItem)new NSMenuItem().alloc(); - nsItem.initWithTitle(str, 0, NSString.stringWith("")); - nsMenu.addItem(nsItem); - nsItem.release(); - if (selection == -1) widget.selectItemAtIndex(-1); - } else { - ((NSComboBox)view).addItemWithObjectValue(str); - } -} - -/** - * Adds the argument to the receiver's list at the given - * zero-relative index. - * <p> - * Note: To add an item at the end of the list, use the - * result of calling <code>getItemCount()</code> as the - * index or use <code>add(String)</code>. - * </p> - * - * @param string the new item - * @param index the index for the item - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list (inclusive)</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see #add(String) - */ -public void add (String string, int index) { - checkWidget (); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - int count = getItemCount (); - if (0 > index || index > count) error (SWT.ERROR_INVALID_RANGE); - NSString str = NSString.stringWith(string); - if ((style & SWT.READ_ONLY) != 0) { - NSPopUpButton widget = (NSPopUpButton)view; - int /*long*/ selection = widget.indexOfSelectedItem(); - NSMenu nsMenu = widget.menu(); - NSMenuItem nsItem = (NSMenuItem)new NSMenuItem().alloc(); - nsItem.initWithTitle(str, 0, NSString.stringWith("")); - nsMenu.insertItem(nsItem, index); - nsItem.release(); - if (selection == -1) widget.selectItemAtIndex(-1); - } else { - ((NSComboBox)view).insertItemWithObjectValue(str, 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) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.Modify, typedListener); -} - -/** - * Adds the listener to the collection of listeners who will - * be notified when the user changes the receiver's selection, by sending - * it one of the messages defined in the <code>SelectionListener</code> - * interface. - * <p> - * <code>widgetSelected</code> is called when the user changes the combo's list selection. - * <code>widgetDefaultSelected</code> is typically called when ENTER is pressed the combo's text area. - * </p> - * - * @param listener the listener which should be notified - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see SelectionListener - * @see #removeSelectionListener - * @see SelectionEvent - */ -public void addSelectionListener(SelectionListener listener) { - checkWidget(); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.Selection,typedListener); - addListener (SWT.DefaultSelection,typedListener); -} - -/** - * Adds the listener to the collection of listeners who will - * be notified when the receiver's text is verified, by sending - * it one of the messages defined in the <code>VerifyListener</code> - * interface. - * - * @param listener the listener which should be notified - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see VerifyListener - * @see #removeVerifyListener - * - * @since 3.1 - */ -public void addVerifyListener (VerifyListener listener) { - checkWidget(); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.Verify, typedListener); -} - -boolean becomeFirstResponder (int /*long*/ id, int /*long*/ sel) { - receivingFocus = true; - boolean result = super.becomeFirstResponder (id, sel); - receivingFocus = false; - return result; -} - -static int checkStyle (int style) { - /* - * Feature in Windows. It is not possible to create - * a combo box that has a border using Windows style - * bits. All combo boxes draw their own border and - * do not use the standard Windows border styles. - * Therefore, no matter what style bits are specified, - * clear the BORDER bits so that the SWT style will - * match the Windows widget. - * - * The Windows behavior is currently implemented on - * all platforms. - */ - style &= ~SWT.BORDER; - - /* - * Even though it is legal to create this widget - * with scroll bars, they serve no useful purpose - * because they do not automatically scroll the - * widget's client area. The fix is to clear - * the SWT style. - */ - style &= ~(SWT.H_SCROLL | SWT.V_SCROLL); - style = checkBits (style, SWT.DROP_DOWN, SWT.SIMPLE, 0, 0, 0, 0); - if ((style & SWT.SIMPLE) != 0) return style & ~SWT.READ_ONLY; - return style; -} - -protected void checkSubclass () { - if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); -} - -/** - * 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(); - if ((style & SWT.READ_ONLY) == 0) { - Point selection = getSelection (); - selection.y = selection.x; - setSelection (selection); - } -} - -public Point computeSize (int wHint, int hHint, boolean changed) { - checkWidget (); - int width = 0, height = 0; - NSControl widget = (NSControl)view; - NSCell viewCell = widget.cell (); - NSSize size = viewCell.cellSize (); - width = (int)Math.ceil (size.width); - height = (int)Math.ceil (size.height); - - if ((style & SWT.READ_ONLY) == 0) { - ignoreVerify = true; - NSComboBoxCell cell = new NSComboBoxCell (viewCell.id); - NSArray array = cell.objectValues (); - int length = (int)/*64*/array.count (); - if (length > 0) { - cell = new NSComboBoxCell (cell.copy ()); - for (int i = 0; i < length; i++) { - id object = array.objectAtIndex (i); - cell.setTitle (new NSString (object)); - size = cell.cellSize (); - width = Math.max (width, (int)Math.ceil (size.width)); - } - cell.release (); - } - ignoreVerify = false; - } - - /* - * Feature in Cocoa. Attempting to create an NSComboBox with a - * height > 27 spews a very long warning message to stdout and - * often draws the combo incorrectly. The workaround is to limit - * the returned height of editable Combos to the height that is - * required to display their text, even if a larger hHint is specified. - */ - if (hHint != SWT.DEFAULT) { - if ((style & SWT.READ_ONLY) != 0 || hHint < height) height = hHint; - } - if (wHint != SWT.DEFAULT) width = wHint; - return new Point (width, height); -} - -/** - * 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 2.1 - */ -public void copy () { - checkWidget (); - Point selection = getSelection (); - if (selection.x == selection.y) return; - copyToClipboard (getText (selection.x, selection.y)); -} - -void createHandle () { - if ((style & SWT.READ_ONLY) != 0) { - NSPopUpButton widget = (NSPopUpButton)new SWTPopUpButton().alloc(); - widget.initWithFrame(new NSRect(), false); - widget.menu().setAutoenablesItems(false); - widget.setTarget(widget); - widget.setAction(OS.sel_sendSelection); - view = widget; - } else { - NSComboBox widget = (NSComboBox)new SWTComboBox().alloc(); - widget.init(); - widget.setDelegate(widget); - widget.setTarget(widget); - widget.setAction(OS.sel_sendSelection); - view = widget; - } -} - -/** - * 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 2.1 - */ -public void cut () { - checkWidget (); - if ((style & SWT.READ_ONLY) != 0) return; - Point selection = getSelection (); - if (selection.x == selection.y) return; - int start = selection.x, end = selection.y; - String text = getText (); - String leftText = text.substring (0, start); - String rightText = text.substring (end, text.length ()); - String oldText = text.substring (start, end); - String newText = ""; - if (hooks (SWT.Verify) || filters (SWT.Verify)) { - newText = verifyText (newText, start, end, null); - if (newText == null) return; - } - char [] buffer = new char [oldText.length ()]; - oldText.getChars (0, buffer.length, buffer, 0); - copyToClipboard (buffer); - setText (leftText + newText + rightText, false); - start += newText.length (); - setSelection (new Point (start, start)); - sendEvent (SWT.Modify); -} - -Color defaultBackground () { - return display.getWidgetColor (SWT.COLOR_LIST_BACKGROUND); -} - -NSFont defaultNSFont() { - if ((style & SWT.READ_ONLY) != 0) return display.popUpButtonFont; - return display.comboBoxFont; -} - -Color defaultForeground () { - return display.getWidgetColor (SWT.COLOR_LIST_FOREGROUND); -} - -void deregister() { - super.deregister(); - display.removeWidget(((NSControl)view).cell()); -} - -/** - * 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 (); - if (index == -1) return; - if (index == getSelectionIndex ()) { - if ((style & SWT.READ_ONLY) != 0) { - ((NSPopUpButton)view).selectItem(null); - sendEvent (SWT.Modify); - } else { - ((NSComboBox)view).deselectItemAtIndex(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 (); - if ((style & SWT.READ_ONLY) != 0) { - ((NSPopUpButton)view).selectItem(null); - sendEvent (SWT.Modify); - } else { - NSComboBox widget = (NSComboBox)view; - int /*long*/ index = widget.indexOfSelectedItem(); - if (index != -1) widget.deselectItemAtIndex(index); - } -} - -boolean dragDetect(int x, int y, boolean filter, boolean[] consume) { - if ((style & SWT.READ_ONLY) == 0) { - NSText fieldEditor = ((NSControl)view).currentEditor(); - if (fieldEditor != null) { - NSRange selectedRange = fieldEditor.selectedRange(); - if (selectedRange.length > 0) { - NSPoint mouseLocation = NSEvent.mouseLocation(); - NSTextView feAsTextView = new NSTextView(fieldEditor); - int /*long*/ charPosition = feAsTextView.characterIndexForInsertionAtPoint(mouseLocation); - if (charPosition != OS.NSNotFound && charPosition >= selectedRange.location && charPosition < (selectedRange.location + selectedRange.length)) { - if (super.dragDetect(x, y, filter, consume)) { - if (consume != null) consume[0] = true; - return true; - } - } - } - } - return false; - } - - return super.dragDetect(x, y, filter, consume); -} - -int getCharCount() { - NSString str; - if ((style & SWT.READ_ONLY) != 0) { - str = ((NSPopUpButton)view).titleOfSelectedItem(); - } else { - str = new NSCell(((NSComboBox)view).cell()).title(); - } - if (str == null) return 0; - return (int)/*64*/str.length(); -} - -/** - * 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 (); - int count = getItemCount (); - if (0 > index || index >= count) error (SWT.ERROR_INVALID_RANGE); - NSString str; - if ((style & SWT.READ_ONLY) != 0) { - str = ((NSPopUpButton)view).itemTitleAtIndex(index); - } else { - str = new NSString(((NSComboBox)view).itemObjectValueAtIndex(index)); - } - if (str == null) error(SWT.ERROR_CANNOT_GET_ITEM); - return str.getString(); -} - -/** - * 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 (); - if ((style & SWT.READ_ONLY) != 0) { - return (int)/*64*/((NSPopUpButton)view).numberOfItems(); - } else { - return (int)/*64*/((NSComboBox)view).numberOfItems(); - } -} - -/** - * 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 (); - //TODO - not supported by the OS - return 26; -} - -/** - * Returns a (possibly empty) array of <code>String</code>s which are - * the items in the receiver's list. - * <p> - * Note: This is not the actual structure used by the receiver - * to maintain its list of items, so modifying the array will - * not affect the receiver. - * </p> - * - * @return the items in the receiver's list - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public String [] getItems () { - checkWidget (); - int count = getItemCount (); - String [] result = new String [count]; - for (int i=0; i<count; i++) result [i] = getItem (i); - return result; -} - -/** - * Returns <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 () { - //TODO - return false; -} - -int getMininumHeight () { - return getTextHeight (); -} - -/** - * Returns the orientation of the receiver. - * - * @return the orientation style - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @since 2.1.2 - */ -public int getOrientation () { - checkWidget(); - return style & (SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT); -} - -/** - * Returns a <code>Point</code> whose x coordinate is the - * character position representing the start of the selection - * in the receiver's text field, and whose y coordinate is the - * character position representing the end of the selection. - * An "empty" selection is indicated by the x and y coordinates - * having the same value. - * <p> - * Indexing is zero based. The range of a selection is from - * 0..N where N is the number of characters in the widget. - * </p> - * - * @return a point representing the selection start and end - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public Point getSelection () { - checkWidget (); - if ((style & SWT.READ_ONLY) != 0) { - return new Point (0, getCharCount ()); - } else { - if (selectionRange == null) { - NSString str = new NSTextFieldCell (((NSTextField) view).cell ()).title (); - return new Point((int)/*64*/str.length (), (int)/*64*/str.length ()); - } - return new Point((int)/*64*/selectionRange.location, (int)/*64*/(selectionRange.location + selectionRange.length)); - } -} - -/** - * 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 (); - if ((style & SWT.READ_ONLY) != 0) { - return (int)/*64*/((NSPopUpButton)view).indexOfSelectedItem(); - } else { - return (int)/*64*/((NSComboBox)view).indexOfSelectedItem(); - } -} - -/** - * Returns a string containing a copy of the contents of the - * receiver's text field, or an empty string if there are no - * contents. - * - * @return the receiver's text - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public String getText () { - checkWidget (); - return new String (getText(0, -1)); -} - -char [] getText (int start, int end) { - NSString str; - if ((style & SWT.READ_ONLY) != 0) { - str = ((NSPopUpButton)view).titleOfSelectedItem(); - } else { - str = new NSCell(((NSComboBox)view).cell()).title(); - } - if (str == null) return new char[0]; - NSRange range = new NSRange (); - range.location = start; - if (end == -1) { - int /*long*/ length = str.length(); - range.length = length - start; - } else { - range.length = end - start; - } - char [] buffer= new char [(int)/*64*/range.length]; - str.getCharacters(buffer, range); - return buffer; -} - -/** - * 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(); - NSCell cell; - if ((style & SWT.READ_ONLY) != 0) { - cell = ((NSPopUpButton)view).cell(); - } else { - cell = ((NSComboBox)view).cell(); - } - return (int)cell.cellSize().height; -} - -/** - * 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> - * - * @see #LIMIT - */ -public int getTextLimit () { - checkWidget(); - return textLimit; -} - -/** - * Gets the number of items that are visible in the drop - * down portion of the receiver's list. - * <p> - * Note: This operation is a hint and is not supported on - * platforms that do not have this concept. - * </p> - * - * @return the number of items that are visible - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @since 3.0 - */ -public int getVisibleItemCount () { - checkWidget (); - if ((style & SWT.READ_ONLY) != 0) { - return getItemCount (); - } else { - return (int)/*64*/((NSComboBox)view).numberOfVisibleItems(); - } -} - -/** - * 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) { - return indexOf (string, 0); -} - -/** - * Searches the receiver's list starting at the given, - * zero-relative index until an item is found that is equal - * to the argument, and returns the index of that item. If - * no item is found or the starting index is out of range, - * returns -1. - * - * @param string the search item - * @param start the zero-relative index at which to 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) error (SWT.ERROR_NULL_ARGUMENT); - int count = getItemCount (); - if (!(0 <= start && start < count)) return -1; - for (int i=start; i<count; i++) { - if (string.equals (getItem (i))) { - return i; - } - } - return -1; -} - -void insertEditText (String string) { - ignoreVerify = true; - int length = string.length (); - Point selection = getSelection (); - if (hasFocus ()) { - if (textLimit != LIMIT) { - int charCount = getCharCount(); - if (charCount - (selection.y - selection.x) + length > textLimit) { - length = textLimit - charCount + (selection.y - selection.x); - } - } - char [] buffer = new char [length]; - string.getChars (0, buffer.length, buffer, 0); - NSString nsstring = NSString.stringWithCharacters (buffer, buffer.length); - NSText fieldEditor = ((NSTextField) view).currentEditor (); - fieldEditor.replaceCharactersInRange (fieldEditor.selectedRange (), nsstring); - selectionRange = null; - } else { - String oldText = getText (); - if (textLimit != LIMIT) { - int charCount = oldText.length (); - if (charCount - (selection.y - selection.x) + length > textLimit) { - string = string.substring(0, textLimit - charCount + (selection.y - selection.x)); - } - } - String newText = oldText.substring (0, selection.x) + string + oldText.substring (selection.y); - NSString nsstring = NSString.stringWith(newText); - new NSCell (((NSTextField) view).cell ()).setTitle (nsstring); - selectionRange = null; - setSelection (new Point(selection.x + string.length (), 0)); - } - ignoreVerify = false; -} - -boolean isEventView (int /*long*/ id) { - return true; -} - -void mouseDown(int /*long*/ id, int /*long*/ sel, int /*long*/ theEvent) { - // If this is a combo box with an editor field and the control is disposed - // while the view's cell editor is open we crash while tearing down the - // popup window. Fix is to retain the view before letting Cocoa track - // the mouse events. - - // 'view' will be cleared if disposed during the mouseDown so cache it. - NSView viewCopy = view; - viewCopy.retain(); - super.mouseDown(id, sel, theEvent); - viewCopy.release(); -} - -/** - * 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 2.1 - */ -public void paste () { - checkWidget (); - if ((style & SWT.READ_ONLY) != 0) return; - Point selection = getSelection (); - int start = selection.x, end = selection.y; - String text = getText (); - String leftText = text.substring (0, start); - String rightText = text.substring (end, text.length ()); - String newText = getClipboardText (); - if (newText == null) return; - if (hooks (SWT.Verify) || filters (SWT.Verify)) { - newText = verifyText (newText, start, end, null); - if (newText == null) return; - } - if (textLimit != LIMIT) { - int charCount = text.length (); - if (charCount - (end - start) + newText.length() > textLimit) { - newText = newText.substring(0, textLimit - charCount + (end - start)); - } - } - setText (leftText + newText + rightText, false); - start += newText.length (); - setSelection (new Point (start, start)); - sendEvent (SWT.Modify); -} - -void register() { - super.register(); - display.addWidget(((NSControl)view).cell(), this); -} - -void releaseWidget () { - super.releaseWidget (); - if ((style & SWT.READ_ONLY) == 0) { - ((NSControl)view).abortEditing(); - } - selectionRange = null; -} - -/** - * 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 (); - if (index == -1) error (SWT.ERROR_INVALID_RANGE); - int count = getItemCount (); - if (0 > index || index >= count) error (SWT.ERROR_INVALID_RANGE); - if ((style & SWT.READ_ONLY) != 0) { - ((NSPopUpButton)view).removeItemAtIndex(index); - } else { - ((NSComboBox)view).removeItemAtIndex(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(); - if (start > end) return; - int count = getItemCount (); - if (!(0 <= start && start <= end && end < count)) { - error (SWT.ERROR_INVALID_RANGE); - } - int newEnd = Math.min (end, count - 1); - for (int i=newEnd; i>=start; i--) { - remove(i); - } -} - -/** - * Searches the receiver's list starting at the first item - * until an item is found that is equal to the argument, - * and removes that item from the list. - * - * @param string the item to remove - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * <li>ERROR_INVALID_ARGUMENT - if the string is not found in the list</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void remove (String string) { - checkWidget (); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - int index = indexOf (string, 0); - if (index == -1) error (SWT.ERROR_INVALID_ARGUMENT); - remove (index); -} - -/** - * Removes all of the items from the receiver'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 (); - if ((style & SWT.READ_ONLY) != 0) { - ((NSPopUpButton)view).removeAllItems(); - } else { - setText ("", true); - ((NSComboBox)view).removeAllItems(); - } -} - -/** - * 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) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (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) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (SWT.Selection, listener); - eventTable.unhook (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 3.1 - */ -public void removeVerifyListener (VerifyListener listener) { - checkWidget(); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (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 (); - int count = getItemCount (); - ignoreSelection = true; - if (0 <= index && index < count) { - if ((style & SWT.READ_ONLY) != 0) { - ((NSPopUpButton)view).selectItemAtIndex(index); - } else { - ((NSComboBox)view).selectItemAtIndex(index); - } - } - ignoreSelection = false; - sendEvent (SWT.Modify); -} - -void sendSelection () { - sendEvent(SWT.Modify); - if (!ignoreSelection) postEvent(SWT.Selection); -} - -boolean sendKeyEvent (NSEvent nsEvent, int type) { - boolean result = super.sendKeyEvent (nsEvent, type); - if (!result) return result; - int stateMask = 0; - int /*long*/ modifierFlags = nsEvent.modifierFlags(); - if ((modifierFlags & OS.NSAlternateKeyMask) != 0) stateMask |= SWT.ALT; - if ((modifierFlags & OS.NSShiftKeyMask) != 0) stateMask |= SWT.SHIFT; - if ((modifierFlags & OS.NSControlKeyMask) != 0) stateMask |= SWT.CONTROL; - if ((modifierFlags & OS.NSCommandKeyMask) != 0) stateMask |= SWT.COMMAND; - if (type != SWT.KeyDown) return result; - short keyCode = nsEvent.keyCode (); - if (stateMask == SWT.COMMAND) { - switch (keyCode) { - case 7: /* X */ - cut (); - return false; - case 8: /* C */ - copy (); - return false; - case 9: /* V */ - paste (); - return false; - case 0: /* A */ - if ((style & SWT.READ_ONLY) == 0) { - ((NSComboBox)view).selectText(null); - return false; - } - } - } - switch (keyCode) { - case 76: /* KP Enter */ - case 36: /* Return */ - postEvent (SWT.DefaultSelection); - } - return result; -} - -void updateBackground () { - NSColor nsColor = null; - if (backgroundImage != null) { - nsColor = NSColor.colorWithPatternImage(backgroundImage.handle); - } else if (background != null) { - nsColor = NSColor.colorWithDeviceRed(background[0], background[1], background[2], background[3]); - } else { - nsColor = NSColor.textBackgroundColor (); - } - - if ((style & SWT.READ_ONLY) != 0) { - //TODO - } else { - ((NSTextField)view).setBackgroundColor(nsColor); - } -} - -void setBounds (int x, int y, int width, int height, boolean move, boolean resize) { - /* - * Feature in Cocoa. Attempting to create an NSComboBox with a - * height > 27 spews a very long warning message to stdout and - * often draws the combo incorrectly. The workaround is to limit - * the height of editable Combos to the height that is required - * to display their text. - */ - if ((style & SWT.READ_ONLY) == 0) { - NSControl widget = (NSControl)view; - NSSize size = widget.cell ().cellSize (); - height = Math.min (height, (int)Math.ceil (size.height)); - } - super.setBounds (x, y, width, height, move, resize); -} - -void setForeground (float /*double*/ [] color) { - NSColor nsColor; - if (color == null) { - nsColor = NSColor.textColor (); - } else { - nsColor = NSColor.colorWithDeviceRed(color[0], color[1], color[2], 1); - } - if ((style & SWT.READ_ONLY) != 0) { - //TODO - } else { - ((NSTextField)view).setTextColor(nsColor); - } -} - -/** - * Sets the text of the item in the receiver's list at the given - * zero-relative index to the string argument. - * - * @param index the index for the item - * @param string the new text for the item - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setItem (int index, String string) { - checkWidget (); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - int count = getItemCount (); - if (0 > index || index >= count) error (SWT.ERROR_INVALID_RANGE); - NSString str = NSString.stringWith(string); - if ((style & SWT.READ_ONLY) != 0) { - NSMenuItem nsItem = ((NSPopUpButton)view).itemAtIndex(index); - nsItem.setTitle(str); - } else { - NSComboBox widget = (NSComboBox)view; - widget.insertItemWithObjectValue(str, index); - widget.removeItemAtIndex(index + 1); - } -} - -/** - * 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(); - if (items == null) error (SWT.ERROR_NULL_ARGUMENT); - for (int i=0; i<items.length; i++) { - if (items [i] == null) error (SWT.ERROR_INVALID_ARGUMENT); - } - removeAll(); - if (items.length == 0) return; - for (int i= 0; i < items.length; i++) { - NSString str = NSString.stringWith(items[i]); - if ((style & SWT.READ_ONLY) != 0) { - NSMenu nsMenu = ((NSPopUpButton)view).menu(); - NSMenuItem nsItem = (NSMenuItem)new NSMenuItem().alloc(); - nsItem.initWithTitle(str, 0, NSString.stringWith("")); - nsMenu.addItem(nsItem); - nsItem.release(); - //clear the selection - ((NSPopUpButton)view).selectItemAtIndex(-1); - } else { - ((NSComboBox)view).addItemWithObjectValue(str); - } - } -} - -/** - * 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 (); - if ((style & SWT.READ_ONLY) != 0) { - ((NSPopUpButton)view).setPullsDown(visible); - } else { - } -} - -/** - * Sets the orientation of the receiver, which must be one - * of the constants <code>SWT.LEFT_TO_RIGHT</code> or <code>SWT.RIGHT_TO_LEFT</code>. - * <p> - * - * @param orientation new orientation style - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @since 2.1.2 - */ -public void setOrientation (int orientation) { - checkWidget(); -} - -/** - * 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) error (SWT.ERROR_NULL_ARGUMENT); - if ((style & SWT.READ_ONLY) == 0) { - NSComboBox widget = (NSComboBox)view; - NSString str = new NSCell(widget.cell()).title(); - int length = (int)/*64*/str.length(); - int start = Math.min (Math.max (Math.min (selection.x, selection.y), 0), length); - int end = Math.min (Math.max (Math.max (selection.x, selection.y), 0), length); - selectionRange = new NSRange(); - selectionRange.location = start; - selectionRange.length = end - start; - NSText fieldEditor = widget.currentEditor(); - if (fieldEditor != null) fieldEditor.setSelectedRange(selectionRange); - } -} - -/** - * Sets the contents of the receiver's text field to the - * given string. - * <p> - * This call is ignored when the receiver is read only and - * the given string is not in the receiver's list. - * </p> - * <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) error (SWT.ERROR_NULL_ARGUMENT); - setText (string, true); -} - -void setText (String string, boolean notify) { - ignoreVerify = true; - if (notify) { - if (hooks (SWT.Verify) || filters (SWT.Verify)) { - string = verifyText (string, 0, getCharCount (), null); - if (string == null) return; - } - } - if ((style & SWT.READ_ONLY) != 0) { - int index = indexOf (string); - if (index != -1 && index != getSelectionIndex ()) { - select (index); - if (notify) sendEvent (SWT.Modify); - } - } else { - char[] buffer = new char [Math.min(string.length (), textLimit)]; - string.getChars (0, buffer.length, buffer, 0); - NSString nsstring = NSString.stringWithCharacters (buffer, buffer.length); - new NSCell(((NSComboBox)view).cell()).setTitle(nsstring); - if (notify) sendEvent (SWT.Modify); - } - selectionRange = null; - ignoreVerify = false; -} - -/** - * Sets the maximum number of characters that the receiver's - * text field is capable of holding to be the argument. - * <p> - * To reset this value to the default, use <code>setTextLimit(Combo.LIMIT)</code>. - * Specifying a limit value larger than <code>Combo.LIMIT</code> sets the - * receiver's limit to <code>Combo.LIMIT</code>. - * </p> - * @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> - * - * @see #LIMIT - */ -public void setTextLimit (int limit) { - checkWidget (); - if (limit == 0) error (SWT.ERROR_CANNOT_BE_ZERO); - textLimit = limit; -} - -/** - * Sets the number of items that are visible in the drop - * down portion of the receiver's list. - * <p> - * Note: This operation is a hint and is not supported on - * platforms that do not have this concept. - * </p> - * - * @param count the new number of items to be visible - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @since 3.0 - */ -public void setVisibleItemCount (int count) { - checkWidget (); - if (count < 0) return; - if ((style & SWT.READ_ONLY) != 0) { - //TODO - } else { - ((NSComboBox)view).setNumberOfVisibleItems(count); - } -} - -boolean shouldChangeTextInRange_replacementString(int /*long*/ id, int /*long*/ sel, int /*long*/ affectedCharRange, int /*long*/ replacementString) { - NSRange range = new NSRange(); - OS.memmove(range, affectedCharRange, NSRange.sizeof); - boolean result = callSuperBoolean(id, sel, range, replacementString); - if (hooks (SWT.Verify)) { - String text = new NSString(replacementString).getString(); - NSEvent currentEvent = display.application.currentEvent(); - int /*long*/ type = currentEvent.type(); - if (type != OS.NSKeyDown && type != OS.NSKeyUp) currentEvent = null; - String newText = verifyText(text, (int)/*64*/range.location, (int)/*64*/(range.location+range.length), currentEvent); - if (newText == null) return false; - if (text != newText) { - insertEditText(newText); - result = false; - } - if (!result) sendEvent (SWT.Modify); - } - return result; -} - -void textViewDidChangeSelection(int /*long*/ id, int /*long*/ sel, int /*long*/ aNotification) { - NSNotification notification = new NSNotification(aNotification); - NSText editor = new NSText(notification.object().id); - selectionRange = editor.selectedRange(); -} - -void textDidChange (int /*long*/ id, int /*long*/ sel, int /*long*/ aNotification) { - super.textDidChange (id, sel, aNotification); - postEvent (SWT.Modify); -} - -NSRange textView_willChangeSelectionFromCharacterRange_toCharacterRange(int /*long*/ id, int /*long*/ sel, int /*long*/ aTextView, int /*long*/ oldSelectedCharRange, int /*long*/ newSelectedCharRange) { - /* - * If the selection is changing as a result of the receiver getting focus - * then return the receiver's last selection range, otherwise the full - * text will be automatically selected. - */ - if (receivingFocus && selectionRange != null) return selectionRange; - - /* allow the selection change to proceed */ - NSRange result = new NSRange(); - OS.memmove(result, newSelectedCharRange, NSRange.sizeof); - return result; -} - -String verifyText (String string, int start, int end, NSEvent keyEvent) { - Event event = new Event (); - if (keyEvent != null) setKeyState(event, SWT.MouseDown, keyEvent); - event.text = string; - event.start = start; - event.end = end; - /* - * It is possible (but unlikely), that application - * code could have disposed the widget in the verify - * event. If this happens, answer null to cancel - * the operation. - */ - sendEvent (SWT.Verify, event); - if (!event.doit || isDisposed ()) return null; - return event.text; -} - -} |