| package org.eclipse.swt.widgets;
|
|
|
| /*
|
| * (c) Copyright IBM Corp. 2000, 2001.
|
| * All Rights Reserved
|
| */
|
|
|
| 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</dd> |
| * </dl> |
| * <p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| * |
| * @see List |
| */ |
| public class Combo extends Composite {
|
|
|
| /** |
| * 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 |
| * for all SWT widget classes should include a comment which |
| * describes the style constants which are applicable to the class. |
| * </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 |
| * @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 text = OS.PtWidgetChildBack(handle);
|
| OS.PtWidgetPreferredSize(text, dim);
|
| height += dim.h;
|
| PhRect_t rect = new PhRect_t ();
|
| PhArea_t area = new PhArea_t ();
|
| OS.PtSetAreaFromWidgetCanvas (text, rect, area);
|
| width += area.size_w;
|
| int [] args = new int [] {
|
| OS.Pt_ARG_LIST_ITEM_COUNT, 0, 0,
|
| OS.Pt_ARG_ITEMS, 0, 0,
|
| OS.Pt_ARG_TEXT_FONT, 0, 0,
|
| };
|
| OS.PtGetResources (handle, args.length / 3, args);
|
| int maxWidth = 0;
|
| rect = new PhRect_t();
|
| int [] items = new int [1];
|
| for (int i = 0; i < args [1]; i++) {
|
| OS.memmove (items, args [4] + (i * 4), 4);
|
| int length = OS.strlen (items [0]);
|
| OS.PfExtentText(rect, null, args [7], items [0], length);
|
| maxWidth = Math.max(maxWidth, rect.lr_x - rect.ul_x + 1);
|
| }
|
| 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;
|
| Display display = getDisplay ();
|
| int clazz = display.PtComboBox;
|
| int parentHandle = parent.handle;
|
| 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> |
| * @exception SWTError <ul> |
| * <li>ERROR_ITEM_NOT_ADDED - if the operation fails because of an operating system failure</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> |
| * @exception SWTError <ul> |
| * <li>ERROR_ITEM_NOT_ADDED - if the operation fails because of an operating system failure</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 receiver's selection changes, by sending |
| * it one of the messages defined in the <code>SelectionListener</code> |
| * interface. |
| * <p> |
| * <code>widgetSelected</code> is called when the combo's list selection changes. |
| * <code>widgetDefaultSelected</code> is typically called when ENTER is pressed the combo's text area. |
| * </p> |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SelectionListener |
| * @see #removeSelectionListener |
| * @see SelectionEvent |
| */ |
| public void addSelectionListener(SelectionListener listener) {
|
| checkWidget();
|
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
|
| TypedListener typedListener = new TypedListener (listener);
|
| addListener (SWT.Selection,typedListener);
|
| addListener (SWT.DefaultSelection,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});
|
| }
|
|
|
| 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> |
| * @exception SWTError <ul> |
| * <li>ERROR_CANNOT_GET_ITEM - if the operation fails because of an operating system failure</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> |
| * @exception SWTError <ul> |
| * <li>ERROR_CANNOT_GET_COUNT - if the operation fails because of an operating system failure</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> |
| * @exception SWTError <ul> |
| * <li>ERROR_CANNOT_GET_ITEM_HEIGHT - if the operation fails because of an operating system failure</li> |
| * </ul> |
| */ |
| public int getItemHeight () {
|
| checkWidget();
|
| //NOT DONE - NOT NEEDED
|
| return 0;
|
| }
|
|
|
| /** |
| * Returns an array of <code>String</code>s which are the items |
| * in the receiver's list. |
| * <p> |
| * Note: This is not the actual structure used by the receiver |
| * to maintain its list of items, so modifying the array will |
| * not affect the receiver. |
| * </p> |
| * |
| * @return the items in the receiver's list |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * @exception SWTError <ul> |
| * <li>ERROR_CANNOT_GET_ITEM - if the operation fails because of an operating system failure</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;
|
| }
|
|
|
| String getNameText () {
|
| return getText ();
|
| }
|
|
|
| /** |
| * Returns a <code>Point</code> whose x coordinate is the start |
| * of the selection in the receiver's text field, and whose y |
| * coordinate is the end of the selection. The returned values |
| * are zero-relative. An "empty" selection as indicated by |
| * the the x and y coordinates having the same value. |
| * |
| * @return a point representing the selection start and end |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Point getSelection () {
|
| checkWidget();
|
| 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_CBOX_SELECTION_ITEM, 0, 0};
|
| OS.PtGetResources (handle, args.length / 3, args);
|
| if (args [1] == 0) return -1;
|
| return args [1] - 1;
|
| }
|
|
|
| /** |
| * Returns a string containing a copy of the contents of the |
| * receiver's text field. |
| * |
| * @return the receiver's text |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public String getText () {
|
| checkWidget();
|
| 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> |
| * @exception SWTError <ul> |
| * <li>ERROR_CANNOT_GET_ITEM_HEIGHT - if the operation fails because of an operating system failure</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> |
| */ |
| 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];
|
| }
|
|
|
| boolean hasFocus () {
|
| return OS.PtIsFocused (handle) != 0;
|
| }
|
|
|
| void hookEvents () {
|
| super.hookEvents ();
|
| int windowProc = getDisplay ().windowProc;
|
| OS.PtAddCallback (handle, OS.Pt_CB_SELECTION, windowProc, SWT.Selection);
|
| OS.PtAddCallback (handle, OS.Pt_CB_TEXT_CHANGED, windowProc, SWT.Modify);
|
| }
|
|
|
| /** |
| * 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 |
| * @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);
|
|
|
| // NOT DONE - start is ignored
|
| return indexOf (string);
|
| }
|
|
|
| int processModify (int info) {
|
| sendEvent (SWT.Modify);
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processPaint (int damage) {
|
| OS.PtSuperClassDraw (OS.PtComboBox (), handle, damage);
|
| sendPaintEvent (damage);
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processSelection (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;
|
| }
|
|
|
| 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> |
| * @exception SWTError <ul> |
| * <li>ERROR_ITEM_NOT_REMOVED - if the operation fails because of an operating system failure</li> |
| * </ul> |
| */ |
| public void remove (int start, int end) {
|
| checkWidget();
|
| 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);
|
| }
|
|
|
| /** |
| * 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> |
| * @exception SWTError <ul> |
| * <li>ERROR_ITEM_NOT_REMOVED - if the operation fails because of an operating system failure</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);
|
| }
|
|
|
| /** |
| * 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> |
| * @exception SWTError <ul> |
| * <li>ERROR_ITEM_NOT_REMOVED - if the operation fails because of an operating system failure</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. |
| * <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);
|
| }
|
|
|
| /** |
| * 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 receiver's selection changes. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SelectionListener |
| * @see #addSelectionListener |
| */ |
| public void removeSelectionListener (SelectionListener listener) {
|
| checkWidget();
|
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
|
| if (eventTable == null) return;
|
| eventTable.unhook (SWT.Selection, listener);
|
| eventTable.unhook (SWT.DefaultSelection,listener);
|
| }
|
|
|
| /** |
| * Selects the item at the given zero-relative index in the receiver's |
| * list. If the item at the index was already selected, it remains |
| * selected. Indices that are out of range are ignored. |
| * |
| * @param index the index of the item to select |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void select (int index) {
|
| checkWidget();
|
| if (index < 0) return;
|
| int [] args = new int [] {OS.Pt_ARG_CBOX_SELECTION_ITEM, index + 1, 0};
|
| OS.PtSetResources (handle, args.length / 3, args);
|
| }
|
|
|
| void setBounds (int x, int y, int width, int height, boolean move, boolean resize) {
|
| checkWidget();
|
| int newHeight = ((style & SWT.DROP_DOWN) != 0) ? getTextHeight() : height;
|
| super.setBounds (x, y, width, newHeight, move, resize);
|
| }
|
|
|
| /** |
| * Sets the text of the item in the receiver's list at the given |
| * zero-relative index to the string argument. This is equivalent |
| * to <code>remove</code>'ing the old item at the index, and then |
| * <code>add</code>'ing the new item at that index. |
| * |
| * @param index the index for the item |
| * @param string the new text for the item |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> |
| * </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> |
| * @exception SWTError <ul> |
| * <li>ERROR_ITEM_NOT_REMOVED - if the remove operation fails because of an operating system failure</li> |
| * <li>ERROR_ITEM_NOT_ADDED - if the add operation fails because of an operating system failure</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 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> |
| * @exception SWTError <ul> |
| * <li>ERROR_ITEM_NOT_ADDED - if the operation fails because of an operating system failure</li> |
| * </ul> |
| */ |
| public void setItems (String [] items) {
|
| checkWidget();
|
| if (items == null) error (SWT.ERROR_NULL_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]);
|
| }
|
| int [] args = {OS.Pt_ARG_TEXT_STRING, 0, 0};
|
| OS.PtSetResources (handle, args.length / 3, args);
|
| }
|
|
|
| /** |
| * 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 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> |
| * 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 text 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) {
|
| int [] args = new int [] {OS.Pt_ARG_CBOX_SELECTION_ITEM, index, 0};
|
| OS.PtSetResources (handle, args.length / 3, args);
|
| // sendEvent (SWT.Modify);
|
| }
|
| return;
|
| }
|
| int ptr = OS.malloc (buffer.length);
|
| OS.memmove (ptr, buffer, buffer.length);
|
| int [] args = {OS.Pt_ARG_TEXT_STRING, ptr, 0};
|
| OS.PtSetResources (handle, args.length / 3, args);
|
| OS.free (ptr);
|
| }
|
|
|
| /** |
| * Sets the maximum number of characters that the receiver's |
| * text field is capable of holding to be the argument. |
| * |
| * @param limit new text limit |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_CANNOT_BE_ZERO - if the limit is zero</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setTextLimit (int limit) {
|
| checkWidget();
|
| if (limit == 0) error (SWT.ERROR_CANNOT_BE_ZERO);
|
| int [] args = new int [] {OS.Pt_ARG_MAX_LENGTH, limit, 0};
|
| OS.PtSetResources (handle, args.length / 3, args);
|
| }
|
|
|
| int traversalCode (int key_sym, PhKeyEvent_t ke) {
|
| int code = super.traversalCode (key_sym, ke);
|
| if (key_sym == OS.Pk_Up || key_sym == OS.Pk_Down) {
|
| code &= ~(SWT.TRAVERSE_ARROW_NEXT | SWT.TRAVERSE_ARROW_PREVIOUS);
|
| }
|
| 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;
|
| }
|
|
|
| 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;
|
| }
|
|
|
| }
|