| /******************************************************************************* |
| * Copyright (c) 2000, 2008 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.widgets; |
| |
| |
| import org.eclipse.swt.internal.*; |
| import org.eclipse.swt.internal.photon.*; |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.events.*; |
| |
| /** |
| * 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 { |
| /** |
| * 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)); |
| } |
| |
| 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; |
| } |
| |
| public Point computeSize (int wHint, int hHint, boolean changed) { |
| checkWidget(); |
| //NOT DONE: this only works with a DROP_DOWN combo |
| if ((style & SWT.SIMPLE) != 0) return new Point(100, 100); |
| PhDim_t dim = new PhDim_t(); |
| if (!OS.PtWidgetIsRealized (handle)) OS.PtExtentWidgetFamily (handle); |
| OS.PtWidgetPreferredSize(handle, dim); |
| int width = dim.w; |
| int height = dim.h; |
| int textWidget = OS.PtWidgetChildBack(handle); |
| OS.PtWidgetPreferredSize(textWidget, dim); |
| height += dim.h; |
| PhRect_t rect = new PhRect_t (); |
| PhArea_t area = new PhArea_t (); |
| OS.PtSetAreaFromWidgetCanvas (textWidget, rect, area); |
| width += area.size_w; |
| |
| /* Calculate maximum text width */ |
| int [] args = new int [] { |
| OS.Pt_ARG_LIST_ITEM_COUNT, 0, 0, // 1 |
| OS.Pt_ARG_ITEMS, 0, 0, // 4 |
| OS.Pt_ARG_TEXT_FONT, 0, 0, // 7 |
| OS.Pt_ARG_TEXT_STRING, 0, 0, // 10 |
| }; |
| OS.PtGetResources (handle, args.length / 3, args); |
| int maxWidth = 0; |
| rect = new PhRect_t(); |
| int str = args [10]; |
| int font = args [7]; |
| if (str != 0) { |
| int length = OS.strlen (str); |
| if (length > 0) { |
| OS.PfExtentText(rect, null, font, str, length); |
| maxWidth = Math.max(maxWidth, rect.lr_x - rect.ul_x + 1); |
| } |
| } |
| int count = args [1]; |
| int [] buffer = new int [1]; |
| for (int i = 0; i < count; i++) { |
| OS.memmove (buffer, args [4] + (i * 4), 4); |
| str = buffer [0]; |
| int length = OS.strlen (str); |
| if (length > 0) { |
| OS.PfExtentText(rect, null, font, str, length); |
| maxWidth = Math.max(maxWidth, rect.lr_x - rect.ul_x + 1); |
| } |
| } |
| if (maxWidth == 0) maxWidth = DEFAULT_WIDTH; |
| int [] args1 = new int [] { |
| OS.Pt_ARG_MARGIN_WIDTH, 0, 0, // 1 |
| OS.Pt_ARG_MARGIN_LEFT, 0, 0, // 4 |
| OS.Pt_ARG_MARGIN_RIGHT, 0, 0, // 7 |
| }; |
| OS.PtGetResources (textWidget, args1.length / 3, args1); |
| maxWidth += args1 [1] + args1 [4] + args1 [7]; |
| |
| width += maxWidth; |
| |
| if (wHint != SWT.DEFAULT || hHint != SWT.DEFAULT) { |
| rect = new PhRect_t (); |
| area = new PhArea_t (); |
| rect.lr_x = (short) (wHint - 1); |
| rect.lr_y = (short) (hHint - 1); |
| OS.PtSetAreaFromWidgetCanvas (handle, rect, area); |
| if (wHint != SWT.DEFAULT) width = area.size_w; |
| if (hHint != SWT.DEFAULT) height = area.size_h; |
| } |
| return new Point(width, height); |
| } |
| |
| void createHandle (int index) { |
| state |= HANDLE; |
| int clazz = display.PtComboBox; |
| int parentHandle = parent.parentingHandle (); |
| int textFlags = (style & SWT.READ_ONLY) != 0 ? 0 : OS.Pt_EDITABLE; |
| int [] args = { |
| OS.Pt_ARG_TEXT_FLAGS, textFlags, OS.Pt_EDITABLE, |
| OS.Pt_ARG_CBOX_MAX_VISIBLE_COUNT, 5, 0, |
| OS.Pt_ARG_CBOX_FLAGS, (style & SWT.SIMPLE) != 0 ? OS.Pt_COMBOBOX_STATIC: 0, OS.Pt_COMBOBOX_STATIC, |
| OS.Pt_ARG_RESIZE_FLAGS, 0, OS.Pt_RESIZE_XY_BITS, |
| }; |
| handle = OS.PtCreateWidget (clazz, parentHandle, args.length / 3, args); |
| if (handle == 0) error (SWT.ERROR_NO_HANDLES); |
| } |
| |
| /** |
| * 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(); |
| int [] args = new int [] {OS.Pt_ARG_CBOX_SELECTION_ITEM, 0, 0}; |
| OS.PtGetResources (handle, args.length / 3, args); |
| if (args [1] == index) { |
| args = new int [] { |
| OS.Pt_ARG_TEXT_STRING, 0, 0, |
| OS.Pt_ARG_CBOX_SELECTION_ITEM, 0, 0 |
| }; |
| OS.PtSetResources (handle, args.length / 3, args); |
| } |
| } |
| |
| /** |
| * 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(); |
| int [] args = new int [] { |
| OS.Pt_ARG_TEXT_STRING, 0, 0, |
| OS.Pt_ARG_CBOX_SELECTION_ITEM, 0, 0 |
| }; |
| OS.PtSetResources (handle, args.length / 3, args); |
| } |
| |
| /** |
| * 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); |
| byte [] buffer = Converter.wcsToMbcs (null, string, true); |
| int ptr = OS.malloc (buffer.length); |
| OS.memmove (ptr, buffer, buffer.length); |
| OS.PtListAddItems (handle, new int [] {ptr}, 1, 0); |
| OS.free (ptr); |
| } |
| |
| /** |
| * 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); |
| if (index == -1) error (SWT.ERROR_INVALID_RANGE); |
| byte [] buffer = Converter.wcsToMbcs (null, string, true); |
| int ptr = OS.malloc (buffer.length); |
| OS.memmove (ptr, buffer, buffer.length); |
| int result = OS.PtListAddItems (handle, new int [] {ptr}, 1, index + 1); |
| OS.free (ptr); |
| if (result != 0) { |
| int [] args = new int [] {OS.Pt_ARG_LIST_ITEM_COUNT, 0, 0}; |
| OS.PtGetResources (handle, args.length / 3, args); |
| if (0 <= index && index <= args [1]) error (SWT.ERROR_ITEM_NOT_ADDED); |
| error (SWT.ERROR_INVALID_RANGE); |
| } |
| } |
| |
| /** |
| * 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); |
| } |
| |
| 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(); |
| OS.PtTextSetSelection (handle, new int [] {0}, new int [] {0}); |
| } |
| |
| |
| /** |
| * 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(); |
| int [] start = new int [1], end = new int [1]; |
| int length = OS.PtTextGetSelection (handle, start, end); |
| if (length <= 0) return; |
| int [] args = {OS.Pt_ARG_TEXT_STRING, 0, 0}; |
| OS.PtGetResources (handle, args.length / 3, args); |
| byte[] buffer = new byte[length + 1]; |
| OS.memmove (buffer, args [1] + start [0], length); |
| int ig = OS.PhInputGroup (0); |
| OS.PhClipboardCopyString((short)ig, buffer); |
| } |
| |
| /** |
| * 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(); |
| int [] start = new int [1], end = new int [1]; |
| int length = OS.PtTextGetSelection (handle, start, end); |
| if (length <= 0) return; |
| int [] args = {OS.Pt_ARG_TEXT_STRING, 0, 0}; |
| OS.PtGetResources (handle, args.length / 3, args); |
| byte[] buffer = new byte[length + 1]; |
| OS.memmove (buffer, args [1] + start [0], length); |
| int ig = OS.PhInputGroup (0); |
| OS.PhClipboardCopyString((short)ig, buffer); |
| buffer = new byte[0]; |
| OS.PtTextModifyText (handle, start [0], end [0], start [0], buffer, buffer.length); |
| } |
| |
| byte [] defaultFont () { |
| return display.TEXT_FONT; |
| } |
| |
| void deregister () { |
| super.deregister (); |
| int child = OS.PtWidgetChildBack (handle); |
| WidgetTable.remove (child); |
| } |
| |
| int focusHandle () { |
| |
| /* |
| * Fetuare in Photon. The combo box does not receive |
| * Pt_CB_GOT_FOCUS and Pt_CB_LOST_FOCUS callbacks itself. |
| * Only the internal PtText receives them. The fix is to |
| * add these callbacks in the internal PtText. |
| */ |
| return OS.PtWidgetChildBack (handle); |
| } |
| |
| /** |
| * 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 [] args = new int [] { |
| OS.Pt_ARG_LIST_ITEM_COUNT, 0, 0, |
| OS.Pt_ARG_ITEMS, 0, 0, |
| }; |
| OS.PtGetResources (handle, args.length / 3, args); |
| if (!(0 <= index && index < args [1])) { |
| error (SWT.ERROR_INVALID_RANGE); |
| } |
| int [] items = new int [1]; |
| OS.memmove (items, args [4] + (index * 4), 4); |
| int length = OS.strlen (items [0]); |
| byte [] buffer = new byte [length]; |
| OS.memmove (buffer, items [0], length); |
| char [] unicode = Converter.mbcsToWcs (null, buffer); |
| return new String (unicode); |
| } |
| |
| /** |
| * 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(); |
| int [] args = new int [] {OS.Pt_ARG_LIST_ITEM_COUNT, 0, 0}; |
| OS.PtGetResources (handle, args.length / 3, args); |
| return args [1]; |
| } |
| |
| /** |
| * 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(); |
| //NOT DONE - NOT NEEDED |
| return 0; |
| } |
| |
| /** |
| * 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 [] args = new int [] { |
| OS.Pt_ARG_LIST_ITEM_COUNT, 0, 0, |
| OS.Pt_ARG_ITEMS, 0, 0, |
| }; |
| OS.PtGetResources (handle, args.length / 3, args); |
| int [] items = new int [args [1]]; |
| OS.memmove (items, args [4], args [1] * 4); |
| String [] result = new String [args [1]]; |
| for (int i=0; i<args [1]; i++) { |
| int length = OS.strlen (items [i]); |
| byte [] buffer = new byte [length]; |
| OS.memmove (buffer, items [i], length); |
| char [] unicode = Converter.mbcsToWcs (null, buffer); |
| result [i] = new String (unicode); |
| } |
| 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 () { |
| checkWidget (); |
| return false; |
| } |
| |
| String getNameText () { |
| return getText (); |
| } |
| |
| /** |
| * 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.DROP_DOWN) != 0) && ((style & SWT.READ_ONLY) != 0)) { |
| int [] args = {OS.Pt_ARG_TEXT_STRING, 0, 0}; |
| OS.PtGetResources (handle, args.length / 3, args); |
| int length = 0; |
| if (args [1] != 0) length = OS.strlen (args [1]); |
| return new Point (0, length); |
| } |
| // if (textVerify != null) { |
| // return new Point (textVerify.start_pos, textVerify.end_pos); |
| // } |
| int [] start = new int [1], end = new int [1]; |
| OS.PtTextGetSelection (handle, start, end); |
| if (start [0] == -1) { |
| int [] args = {OS.Pt_ARG_CURSOR_POSITION, 0, 0}; |
| OS.PtGetResources (handle, args.length / 3, args); |
| start [0] = end [0] = args [1]; |
| } |
| return new Point (start [0], end [0]); |
| } |
| |
| /** |
| * 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(); |
| int [] args = new int [] { |
| OS.Pt_ARG_LIST_SEL_COUNT, 0, 0, |
| OS.Pt_ARG_SELECTION_INDEXES, 0, 0, |
| }; |
| OS.PtGetResources (handle, args.length / 3, args); |
| if (args [1] == 0) return -1; |
| short [] buffer = new short [1]; |
| OS.memmove (buffer, args [4], 2); |
| return buffer [0] - 1; |
| } |
| |
| /** |
| * 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(); |
| int [] args = {OS.Pt_ARG_TEXT_STRING, 0, 0}; |
| OS.PtGetResources (handle, args.length / 3, args); |
| if (args [1] == 0) return ""; |
| int length = OS.strlen (args [1]); |
| byte [] buffer = new byte [length]; |
| OS.memmove (buffer, args [1], length); |
| char [] unicode = Converter.mbcsToWcs (null, buffer); |
| return new String (unicode); |
| } |
| |
| /** |
| * 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(); |
| //NOT DONE - Only works for DROP_DOWN |
| PhDim_t dim = new PhDim_t(); |
| if (!OS.PtWidgetIsRealized (handle)) OS.PtExtentWidgetFamily (handle); |
| OS.PtWidgetPreferredSize(handle, dim); |
| int height = dim.h; |
| int text = OS.PtWidgetChildBack(handle); |
| OS.PtWidgetPreferredSize(text, dim); |
| height += dim.h; |
| return 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(); |
| int [] args = new int [] {OS.Pt_ARG_MAX_LENGTH, 0, 0}; |
| OS.PtGetResources (handle, args.length / 3, args); |
| return args [1]; |
| } |
| |
| /** |
| * 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 (); |
| int [] args = new int [] {OS.Pt_ARG_CBOX_MAX_VISIBLE_COUNT, 0, 0}; |
| OS.PtGetResources (handle, args.length / 3, args); |
| return args [1]; |
| } |
| |
| boolean hasFocus () { |
| return OS.PtIsFocused (handle) != 0; |
| } |
| |
| void hookEvents () { |
| super.hookEvents (); |
| int windowProc = display.windowProc; |
| OS.PtAddCallback (handle, OS.Pt_CB_SELECTION, windowProc, OS.Pt_CB_SELECTION); |
| OS.PtAddCallback (handle, OS.Pt_CB_TEXT_CHANGED, windowProc, OS.Pt_CB_TEXT_CHANGED); |
| } |
| |
| /** |
| * 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(); |
| byte [] buffer = Converter.wcsToMbcs (null, string, true); |
| return OS.PtListItemPos (handle, buffer) - 1; |
| } |
| |
| /** |
| * 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); |
| if (start == 0) return indexOf(string); |
| int [] args = new int [] { |
| OS.Pt_ARG_LIST_ITEM_COUNT, 0, 0, |
| OS.Pt_ARG_ITEMS, 0, 0, |
| }; |
| OS.PtGetResources (handle, args.length / 3, args); |
| int count = args [1]; |
| if (!(0 <= start && start < count)) return -1; |
| int [] item = new int [1]; |
| for (int index=start; index<count; index++) { |
| OS.memmove (item, args [4] + (index * 4), 4); |
| int length = OS.strlen (item [0]); |
| byte [] buffer = new byte [length]; |
| OS.memmove (buffer, item [0], length); |
| if (string.equals(new String (Converter.mbcsToWcs (null, buffer)))) return index; |
| } |
| return -1; |
| } |
| |
| /** |
| * 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(); |
| int ig = OS.PhInputGroup (0); |
| int ptr = OS.PhClipboardPasteString((short)ig); |
| if (ptr == 0) return; |
| int length = OS.strlen (ptr); |
| int [] start = new int [1], end = new int [1]; |
| OS.PtTextGetSelection (handle, start, end); |
| if (start [0] == -1) { |
| int [] args = {OS.Pt_ARG_CURSOR_POSITION, 0, 0}; |
| OS.PtGetResources (handle, args.length / 3, args); |
| start [0] = end [0] = args [1]; |
| } |
| OS.PtTextModifyText (handle, start [0], end [0], end [0], ptr, length); |
| OS.free(ptr); |
| } |
| |
| int Pt_CB_SELECTION (int widget, int info) { |
| if (info == 0) return OS.Pt_CONTINUE; |
| PtCallbackInfo_t cbinfo = new PtCallbackInfo_t (); |
| OS.memmove (cbinfo, info, PtCallbackInfo_t.sizeof); |
| if (cbinfo.reason_subtype == OS.Pt_LIST_SELECTION_FINAL) { |
| postEvent(SWT.Selection); |
| } |
| return OS.Pt_CONTINUE; |
| } |
| |
| int Pt_CB_TEXT_CHANGED (int widget, int info) { |
| sendEvent (SWT.Modify); |
| return OS.Pt_CONTINUE; |
| } |
| |
| void register () { |
| super.register (); |
| int child = OS.PtWidgetChildBack (handle); |
| WidgetTable.put (child, this); |
| } |
| |
| /** |
| * 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 [] args = new int [] {OS.Pt_ARG_LIST_ITEM_COUNT, 0, 0}; |
| OS.PtGetResources (handle, args.length / 3, args); |
| if (!(0 <= start && start <= end && end < args [1])) { |
| error (SWT.ERROR_INVALID_RANGE); |
| } |
| int count = end - start + 1; |
| int result = OS.PtListDeleteItemPos (handle, count, start + 1); |
| if (result != 0) error (SWT.ERROR_ITEM_NOT_REMOVED); |
| if ((style & SWT.READ_ONLY) !=0) { |
| if (args [1] == count) OS.PtSetResource (handle, OS.Pt_ARG_TEXT_STRING, 0, 0); |
| } |
| } |
| |
| /** |
| * 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(); |
| int [] args = new int [] {OS.Pt_ARG_LIST_ITEM_COUNT, 0, 0}; |
| OS.PtGetResources (handle, args.length / 3, args); |
| if (!(0 <= index && index < args [1])) error (SWT.ERROR_INVALID_RANGE); |
| int result = OS.PtListDeleteItemPos (handle, 1, index + 1); |
| if (result != 0) error (SWT.ERROR_ITEM_NOT_REMOVED); |
| if ((style & SWT.READ_ONLY) !=0) { |
| if (args [1] == 1) OS.PtSetResource (handle, OS.Pt_ARG_TEXT_STRING, 0, 0); |
| } |
| } |
| |
| /** |
| * 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(); |
| int index = indexOf (string, 0); |
| if (index == -1) error (SWT.ERROR_ITEM_NOT_REMOVED); |
| 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(); |
| OS.PtListDeleteAllItems (handle); |
| OS.PtSetResource (handle, OS.Pt_ARG_TEXT_STRING, 0, 0); |
| sendEvent (SWT.Modify); |
| } |
| |
| /** |
| * 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(); |
| if (index < 0) return; |
| OS.PtSetResource (handle, OS.Pt_ARG_CBOX_SELECTION_ITEM, index + 1, 0); |
| } |
| |
| int setBounds (int x, int y, int width, int height, boolean move, boolean resize, boolean events) { |
| checkWidget(); |
| int newHeight = (resize && (style & SWT.DROP_DOWN) != 0) ? getTextHeight() : height; |
| return super.setBounds (x, y, width, newHeight, move, resize, events); |
| } |
| |
| /** |
| * 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 [] args = new int [] {OS.Pt_ARG_LIST_ITEM_COUNT, 0, 0}; |
| OS.PtGetResources (handle, args.length / 3, args); |
| if (!(0 <= index && index < args [1])) { |
| error (SWT.ERROR_INVALID_RANGE); |
| } |
| byte [] buffer = Converter.wcsToMbcs (null, string, true); |
| int ptr = OS.malloc (buffer.length); |
| OS.memmove (ptr, buffer, buffer.length); |
| OS.PtListReplaceItemPos (handle, new int [] {ptr}, 1, index + 1); |
| OS.free (ptr); |
| } |
| |
| /** |
| * 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); |
| } |
| OS.PtListDeleteAllItems (handle); |
| int[] itemsPtr = new int [items.length]; |
| for (int i=0; i<itemsPtr.length; i++) { |
| byte [] buffer = Converter.wcsToMbcs (null, items [i], true); |
| int ptr = OS.malloc (buffer.length); |
| OS.memmove (ptr, buffer, buffer.length); |
| itemsPtr [i] = ptr; |
| } |
| OS.PtListAddItems (handle, itemsPtr, itemsPtr.length, 0); |
| for (int i=0; i<itemsPtr.length; i++) { |
| OS.free (itemsPtr [i]); |
| } |
| OS.PtSetResource (handle, OS.Pt_ARG_TEXT_STRING, 0, 0); |
| sendEvent (SWT.Modify); |
| } |
| |
| /** |
| * 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 (); |
| } |
| |
| /** |
| * 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); |
| OS.PtTextSetSelection (handle, new int [] {selection.x}, new int [] {selection.y}); |
| } |
| |
| /** |
| * 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); |
| byte [] buffer = Converter.wcsToMbcs (null, string, true); |
| if ((style & SWT.READ_ONLY) != 0) { |
| int index = OS.PtListItemPos(handle, buffer); |
| if (index > 0) { |
| OS.PtSetResource (handle, OS.Pt_ARG_CBOX_SELECTION_ITEM, index, 0); |
| sendEvent (SWT.Modify); |
| } |
| return; |
| } |
| int ptr = OS.malloc (buffer.length); |
| OS.memmove (ptr, buffer, buffer.length); |
| OS.PtSetResource (handle, OS.Pt_ARG_TEXT_STRING, ptr, 0); |
| OS.free (ptr); |
| sendEvent (SWT.Modify); |
| } |
| |
| /** |
| * 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); |
| OS.PtSetResource (handle, OS.Pt_ARG_MAX_LENGTH, limit, 0); |
| } |
| |
| int traversalCode (int key_sym, PhKeyEvent_t ke) { |
| int code = super.traversalCode (key_sym, ke); |
| if ((style & SWT.READ_ONLY) == 0) { |
| if (key_sym == OS.Pk_Up || key_sym == OS.Pk_Down) { |
| code &= ~(SWT.TRAVERSE_ARROW_NEXT | SWT.TRAVERSE_ARROW_PREVIOUS); |
| } |
| } |
| return code; |
| } |
| |
| /** |
| * 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 visibleCount) { |
| checkWidget (); |
| if (visibleCount < 0) return; |
| OS.PtSetResource (handle, OS.Pt_ARG_CBOX_MAX_VISIBLE_COUNT, visibleCount, 0); |
| } |
| |
| boolean translateTraversal (int key_sym, PhKeyEvent_t phEvent) { |
| boolean translated = super.translateTraversal (key_sym, phEvent); |
| if (!translated && key_sym == OS.Pk_Return) { |
| postEvent (SWT.DefaultSelection); |
| return false; |
| } |
| return translated; |
| } |
| |
| int widgetClass () { |
| return OS.PtComboBox (); |
| } |
| |
| } |