| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.widgets; |
| |
| |
| import org.eclipse.swt.internal.carbon.OS; |
| import org.eclipse.swt.internal.carbon.DataBrowserCallbacks; |
| import org.eclipse.swt.internal.carbon.DataBrowserListViewColumnDesc; |
| import org.eclipse.swt.internal.carbon.Rect; |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.events.*; |
| import org.eclipse.swt.graphics.*; |
| |
| /** |
| * Instances of this class represent a selectable user interface |
| * object that displays a list of strings and issues notificiation |
| * when a string selected. A list may be single or multi select. |
| * <p> |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>SINGLE, MULTI</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>Selection, DefaultSelection</dd> |
| * </dl> |
| * <p> |
| * Note: Only one of SINGLE and MULTI may be specified. |
| * </p><p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| */ |
| public class List extends Scrollable { |
| String [] items; |
| int itemCount, anchorFirst, anchorLast; |
| boolean ignoreSelect; |
| static final int COLUMN_ID = 1024; |
| static final int EXTRA_WIDTH = 25; |
| |
| /** |
| * 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#SINGLE |
| * @see SWT#MULTI |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public List (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> |
| * @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); |
| int [] id = new int [] {itemCount + 1}; |
| if (OS.AddDataBrowserItems (handle, OS.kDataBrowserNoItem, 1, id, 0) != OS.noErr) { |
| error (SWT.ERROR_ITEM_NOT_ADDED); |
| } |
| if (itemCount == items.length) { |
| String [] newItems = new String [itemCount + 4]; |
| System.arraycopy (items, 0, newItems, 0, items.length); |
| items = newItems; |
| } |
| items [itemCount++] = string; |
| } |
| |
| /** |
| * Adds the argument to the receiver's list at the given |
| * zero-relative index. |
| * <p> |
| * Note: To add an item at the end of the list, use the |
| * result of calling <code>getItemCount()</code> as the |
| * index or use <code>add(String)</code>. |
| * </p> |
| * |
| * @param string the new item |
| * @param index the index for the item |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the string is null</li> |
| * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list (inclusive)</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * @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 (!(0 <= index && index <= itemCount)) error (SWT.ERROR_INVALID_RANGE); |
| int [] id = new int [] {itemCount + 1}; |
| if (OS.AddDataBrowserItems (handle, OS.kDataBrowserNoItem, 1, id, 0) != OS.noErr) { |
| error (SWT.ERROR_ITEM_NOT_ADDED); |
| } |
| if (itemCount == items.length) { |
| String [] newItems = new String [itemCount + 4]; |
| System.arraycopy (items, 0, newItems, 0, items.length); |
| items = newItems; |
| } |
| System.arraycopy (items, index, items, index + 1, itemCount++ - index); |
| items [index] = string; |
| OS.UpdateDataBrowserItems (handle, 0, 0, null, OS.kDataBrowserItemNoProperty, OS.kDataBrowserNoItem); |
| } |
| |
| /** |
| * 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 selection changes. |
| * <code>widgetDefaultSelected</code> is typically called when an item is double-clicked. |
| * </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); |
| } |
| |
| static int checkStyle (int style) { |
| return checkBits (style, SWT.SINGLE, SWT.MULTI, 0, 0, 0, 0); |
| } |
| |
| public Point computeSize (int wHint, int hHint, boolean changed) { |
| checkWidget(); |
| int width = 0; |
| if (wHint == SWT.DEFAULT) { |
| GC gc = new GC (this); |
| for (int i=0; i<itemCount; i++) { |
| Point extent = gc.stringExtent (items [i]); |
| width = Math.max (width, extent.x); |
| } |
| gc.dispose (); |
| width += EXTRA_WIDTH; |
| } else { |
| width = wHint; |
| } |
| if (width <= 0) width = DEFAULT_WIDTH; |
| int height = 0; |
| if (hHint == SWT.DEFAULT) { |
| height = itemCount * getItemHeight (); |
| } else { |
| height = hHint; |
| } |
| if (height <= 0) height = DEFAULT_HEIGHT; |
| Rectangle rect = computeTrim (0, 0, width, height); |
| return new Point (rect.width, rect.height); |
| } |
| |
| public Rectangle computeTrim (int x, int y, int width, int height) { |
| checkWidget(); |
| int border = 0; |
| int [] outMetric = new int [1]; |
| OS.GetThemeMetric (OS.kThemeMetricFocusRectOutset, outMetric); |
| border += outMetric [0]; |
| OS.GetThemeMetric (OS.kThemeMetricEditTextFrameOutset, outMetric); |
| border += outMetric [0]; |
| Rect rect = new Rect (); |
| OS.GetDataBrowserScrollBarInset (handle, rect); |
| x -= rect.left + border; |
| y -= rect.top + border; |
| width += rect.left + rect.right + border + border; |
| height += rect.top + rect.bottom + border + border; |
| return new Rectangle (x, y, width, height); |
| } |
| |
| void createHandle () { |
| int [] outControl = new int [1]; |
| int window = OS.GetControlOwner (parent.handle); |
| OS.CreateDataBrowserControl (window, null, OS.kDataBrowserListView, outControl); |
| if (outControl [0] == 0) error (SWT.ERROR_NO_HANDLES); |
| handle = outControl [0]; |
| int selectionFlags = (style & SWT.SINGLE) != 0 ? OS.kDataBrowserSelectOnlyOne : OS.kDataBrowserCmdTogglesSelection; |
| OS.SetDataBrowserSelectionFlags (handle, selectionFlags); |
| OS.SetDataBrowserListViewHeaderBtnHeight (handle, (short) 0); |
| OS.SetDataBrowserHasScrollBars (handle, (style & SWT.H_SCROLL) != 0, (style & SWT.V_SCROLL) != 0); |
| DataBrowserListViewColumnDesc column = new DataBrowserListViewColumnDesc (); |
| column.headerBtnDesc_version = OS.kDataBrowserListViewLatestHeaderDesc; |
| column.propertyDesc_propertyID = COLUMN_ID; |
| column.propertyDesc_propertyType = OS.kDataBrowserTextType; |
| column.propertyDesc_propertyFlags = OS.kDataBrowserListViewSelectionColumn | OS.kDataBrowserDefaultPropertyFlags; |
| //NOT DONE |
| column.headerBtnDesc_maximumWidth= 0x7FFF; |
| column.headerBtnDesc_initialOrder= OS.kDataBrowserOrderIncreasing; |
| OS.AddDataBrowserListViewColumn (handle, column, 0); |
| |
| /* |
| * Feature in the Macintosh. Scroll bars are not created until |
| * the data browser needs to draw them. The fix is to force the scroll |
| * bars to be created by temporarily giving the widget a size, drawing |
| * it on a offscreen buffer to avoid flashes and then restoring it to |
| * size zero. |
| */ |
| int size = 50; |
| Rect rect = new Rect (); |
| rect.right = rect.bottom = (short) size; |
| OS.SetControlBounds (handle, rect); |
| int bpl = size * 4; |
| int [] gWorld = new int [1]; |
| int data = OS.NewPtr (bpl * size); |
| OS.NewGWorldFromPtr (gWorld, OS.k3ARGBPixelFormat, rect, 0, 0, 0, data, bpl); |
| int [] curPort = new int [1]; |
| int [] curGWorld = new int [1]; |
| OS.GetGWorld (curPort, curGWorld); |
| OS.SetGWorld (gWorld [0], curGWorld [0]); |
| OS.DrawControlInCurrentPort (handle); |
| OS.SetGWorld (curPort [0], curGWorld [0]); |
| OS.DisposeGWorld (gWorld [0]); |
| OS.DisposePtr (data); |
| rect.right = rect.bottom = (short) 0; |
| OS.SetControlBounds (handle, rect); |
| } |
| |
| void createWidget () { |
| super.createWidget (); |
| items = new String [4]; |
| } |
| |
| ScrollBar createScrollBar (int style) { |
| return createStandardBar (style); |
| } |
| |
| Color defaultBackground () { |
| return display.getSystemColor (SWT.COLOR_LIST_BACKGROUND); |
| } |
| |
| Color defaultForeground () { |
| return display.getSystemColor (SWT.COLOR_LIST_FOREGROUND); |
| } |
| |
| int defaultThemeFont () { |
| return OS.kThemeViewsFont; |
| } |
| |
| /** |
| * Deselects the item at the given zero-relative index in the receiver. |
| * 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 (0 < index && index < itemCount) { |
| ignoreSelect = true; |
| int [] id = new int [] {index + 1}; |
| OS.SetDataBrowserSelectedItems (handle, id.length, id, OS.kDataBrowserItemsRemove); |
| ignoreSelect = false; |
| } |
| } |
| |
| /** |
| * Deselects the items at the given zero-relative indices in the receiver. |
| * If the item at the given zero-relative index in the receiver |
| * is selected, it is deselected. If the item at the index |
| * was not selected, it remains deselected. The range of the |
| * indices is inclusive. Indices that are out of range are ignored. |
| * |
| * @param start the start index of the items to deselect |
| * @param end the end index of the items 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 start, int end) { |
| checkWidget(); |
| //NOT DONE - range check |
| int length = end - start + 1; |
| if (length <= 0) return; |
| int [] ids = new int [length]; |
| for (int i=0; i<length; i++) ids [i] = end - i + 1; |
| ignoreSelect = true; |
| OS.SetDataBrowserSelectedItems (handle, length, ids, OS.kDataBrowserItemsRemove); |
| ignoreSelect = false; |
| } |
| |
| /** |
| * Deselects the items at the given zero-relative indices in the receiver. |
| * If the item at the given zero-relative index in the receiver |
| * is selected, it is deselected. If the item at the index |
| * was not selected, it remains deselected. Indices that are out |
| * of range and duplicate indices are ignored. |
| * |
| * @param indices the array of indices for the items to deselect |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the set of indices 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 deselect (int [] indices) { |
| checkWidget(); |
| if (indices == null) error (SWT.ERROR_NULL_ARGUMENT); |
| //NOT DONE - range check |
| int length = indices.length; |
| int [] ids = new int [length]; |
| for (int i=0; i<length; i++) ids [i] = indices [length - i - 1] + 1; |
| ignoreSelect = true; |
| OS.SetDataBrowserSelectedItems (handle, length, ids, OS.kDataBrowserItemsRemove); |
| ignoreSelect = false; |
| } |
| |
| /** |
| * Deselects all selected items in the receiver. |
| * |
| * @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 deselectAll () { |
| checkWidget (); |
| ignoreSelect = true; |
| OS.SetDataBrowserSelectedItems (handle, 0, null, OS.kDataBrowserItemsRemove); |
| ignoreSelect = false; |
| } |
| |
| public Rectangle getClientArea () { |
| checkWidget(); |
| int border = 0; |
| int [] outMetric = new int [1]; |
| OS.GetThemeMetric (OS.kThemeMetricFocusRectOutset, outMetric); |
| border += outMetric [0]; |
| OS.GetThemeMetric (OS.kThemeMetricEditTextFrameOutset, outMetric); |
| border += outMetric [0]; |
| Rect rect = new Rect (), inset = new Rect (); |
| OS.GetControlBounds (handle, rect); |
| OS.GetDataBrowserScrollBarInset (handle, inset); |
| int width = Math.max (0, rect.right - rect.left - inset.right - border - border); |
| int height = Math.max (0, rect.bottom - rect.top - inset.bottom - border - border); |
| return new Rectangle (inset.left, inset.top, width, height); |
| } |
| |
| /** |
| * Returns the zero-relative index of the item which is currently |
| * has the focus in the receiver, or -1 if no item is has focus. |
| * |
| * @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 getFocusIndex () { |
| checkWidget(); |
| int [] first = new int [1], last = new int [1]; |
| if (OS.GetDataBrowserSelectionAnchor (handle, first, last) != OS.noErr) return -1; |
| return first [0] - 1; |
| } |
| |
| /** |
| * Returns the item at the given, zero-relative index in the |
| * receiver. 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(); |
| if (!(0 <= index && index < itemCount)) error (SWT.ERROR_INVALID_RANGE); |
| return items [index]; |
| } |
| |
| /** |
| * Returns the number of items contained in the receiver. |
| * |
| * @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(); |
| return itemCount; |
| } |
| |
| /** |
| * Returns the height of the area which would be used to |
| * display <em>one</em> of the items in the tree. |
| * |
| * @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 (); |
| short [] height = new short [1]; |
| if (OS.GetDataBrowserTableViewRowHeight (handle, height) != OS.noErr) { |
| error (SWT.ERROR_CANNOT_GET_ITEM_HEIGHT); |
| } |
| return height [0]; |
| } |
| |
| /** |
| * Returns an array of <code>String</code>s which are the items |
| * in the receiver. |
| * <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 while getting an item</li> |
| * <li>ERROR_CANNOT_GET_COUNT - if the operation fails because of an operating system failure while getting the item count</li> |
| * </ul> |
| */ |
| public String [] getItems () { |
| checkWidget(); |
| String [] result = new String [itemCount]; |
| System.arraycopy (items, 0, result, 0, itemCount); |
| return result; |
| } |
| |
| /** |
| * Returns an array of <code>String</code>s that are currently |
| * selected in the receiver. An empty array indicates that no |
| * items are selected. |
| * <p> |
| * Note: This is not the actual structure used by the receiver |
| * to maintain its selection, so modifying the array will |
| * not affect the receiver. |
| * </p> |
| * @return an array representing the selection |
| * |
| * @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_SELECTION - if the operation fails because of an operating system failure while getting the selection</li> |
| * <li>ERROR_CANNOT_GET_ITEM - if the operation fails because of an operating system failure while getting an item</li> |
| * </ul> |
| */ |
| public String [] getSelection () { |
| checkWidget (); |
| int ptr = OS.NewHandle (0); |
| if (OS.GetDataBrowserItems (handle, OS.kDataBrowserNoItem, true, OS.kDataBrowserItemIsSelected, ptr) != OS.noErr) { |
| error (SWT.ERROR_CANNOT_GET_SELECTION); |
| } |
| int count = OS.GetHandleSize (ptr) / 4; |
| String [] result = new String [count]; |
| OS.HLock (ptr); |
| int [] start = new int [1]; |
| OS.memcpy (start, ptr, 4); |
| int [] id = new int [1]; |
| for (int i=0; i<count; i++) { |
| OS.memcpy (id, start [0] + (i * 4), 4); |
| result [i] = items [id [0] - 1]; |
| } |
| OS.HUnlock (ptr); |
| OS.DisposeHandle (ptr); |
| return result; |
| } |
| |
| /** |
| * Returns the number of selected items contained in the receiver. |
| * |
| * @return the number of selected 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 getSelectionCount () { |
| checkWidget (); |
| int [] count = new int [1]; |
| if (OS.GetDataBrowserItemCount (handle, OS.kDataBrowserNoItem, true, OS.kDataBrowserItemIsSelected, count) != OS.noErr) { |
| error (SWT.ERROR_CANNOT_GET_COUNT); |
| } |
| return count [0]; |
| } |
| |
| /** |
| * Returns the zero-relative index of the item which is currently |
| * selected in the receiver, 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> |
| * @exception SWTError <ul> |
| * <li>ERROR_CANNOT_GET_SELECTION - if the operation fails because of an operating system failure</li> |
| * </ul> |
| */ |
| public int getSelectionIndex () { |
| checkWidget(); |
| int [] first = new int [1], last = new int [1]; |
| if (OS.GetDataBrowserSelectionAnchor (handle, first, last) != OS.noErr) return -1; |
| return first [0] - 1; |
| } |
| |
| /** |
| * Returns the zero-relative indices of the items which are currently |
| * selected in the receiver. The array is empty if no items are selected. |
| * <p> |
| * Note: This is not the actual structure used by the receiver |
| * to maintain its selection, so modifying the array will |
| * not affect the receiver. |
| * </p> |
| * @return the array of indices of the selected 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_SELECTION - if the operation fails because of an operating system failure</li> |
| * </ul> |
| */ |
| public int [] getSelectionIndices () { |
| checkWidget (); |
| int ptr = OS.NewHandle (0); |
| if (OS.GetDataBrowserItems (handle, OS.kDataBrowserNoItem, true, OS.kDataBrowserItemIsSelected, ptr) != OS.noErr) { |
| error (SWT.ERROR_CANNOT_GET_SELECTION); |
| } |
| int count = OS.GetHandleSize (ptr) / 4; |
| int [] result = new int [count]; |
| OS.HLock (ptr); |
| int [] start = new int [1]; |
| OS.memcpy (start, ptr, 4); |
| int [] id = new int [1]; |
| for (int i=0; i<count; i++) { |
| OS.memcpy (id, start [0] + (i * 4), 4); |
| result [i] = id [0] - 1; |
| } |
| OS.HUnlock (ptr); |
| OS.DisposeHandle (ptr); |
| return result; |
| } |
| |
| /** |
| * Returns the zero-relative index of the item which is currently |
| * at the top of the receiver. This index can change when items are |
| * scrolled or new items are added or removed. |
| * |
| * @return the index of the top 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 getTopIndex () { |
| checkWidget(); |
| int[] top = new int [1], left = new int [1]; |
| OS.GetDataBrowserScrollPosition (handle, top, left); |
| return top [0] / getItemHeight (); |
| } |
| |
| void hookEvents () { |
| super.hookEvents (); |
| DataBrowserCallbacks callbacks = new DataBrowserCallbacks (); |
| callbacks.version = OS.kDataBrowserLatestCallbacks; |
| OS.InitDataBrowserCallbacks (callbacks); |
| callbacks.v1_itemDataCallback = display.itemDataProc; |
| callbacks.v1_itemNotificationCallback = display.itemNotificationProc; |
| OS.SetDataBrowserCallbacks (handle, callbacks); |
| } |
| |
| int itemDataProc (int browser, int id, int property, int itemData, int setValue) { |
| int index = id - 1; |
| switch (property) { |
| case COLUMN_ID: { |
| String text = items [index]; |
| char [] buffer = new char [text.length ()]; |
| text.getChars (0, buffer.length, buffer, 0); |
| int ptr = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, buffer, buffer.length); |
| if (ptr == 0) error (SWT.ERROR_CANNOT_SET_TEXT); |
| OS.SetDataBrowserItemDataText (itemData, ptr); |
| OS.CFRelease (ptr); |
| break; |
| } |
| } |
| return OS.noErr; |
| } |
| |
| int kEventMouseDown (int nextHandler, int theEvent, int userData) { |
| int result = super.kEventMouseDown (nextHandler, theEvent, userData); |
| if (result == OS.noErr) return result; |
| /* |
| * Feature in the Macintosh. For some reason, when the user |
| * clicks on the data browser, focus is assigned, then lost |
| * and then reassigned causing kEvenControlSetFocusPart events. |
| * The fix is to ignore kEvenControlSetFocusPart when the user |
| * clicks and send the focus events from kEventMouseDown. |
| */ |
| Control oldFocus = display.getFocusControl (); |
| display.ignoreFocus = true; |
| result = OS.CallNextEventHandler (nextHandler, theEvent); |
| display.ignoreFocus = false; |
| if (oldFocus != this) { |
| if (oldFocus != null && !oldFocus.isDisposed ()) oldFocus.sendFocusEvent (false, false); |
| if (!isDisposed () && isEnabled ()) sendFocusEvent (true, false); |
| } |
| return result; |
| } |
| |
| int kEventTextInputUnicodeForKeyEvent (int nextHandler, int theEvent, int userData) { |
| int result = super.kEventTextInputUnicodeForKeyEvent (nextHandler, theEvent, userData); |
| if (result == OS.noErr) return result; |
| int [] keyboardEvent = new int [1]; |
| OS.GetEventParameter (theEvent, OS.kEventParamTextInputSendKeyboardEvent, OS.typeEventRef, null, keyboardEvent.length * 4, null, keyboardEvent); |
| int [] keyCode = new int [1]; |
| OS.GetEventParameter (keyboardEvent [0], OS.kEventParamKeyCode, OS.typeUInt32, null, keyCode.length * 4, null, keyCode); |
| switch (keyCode [0]) { |
| case 36: { /* Return */ |
| postEvent (SWT.DefaultSelection); |
| break; |
| } |
| /* |
| * Feature in the Macintosh. For some reason, when the user hits an |
| * up or down arrow to traverse the items in a Data Browser, the item |
| * scrolls to the left such that the white space that is normally |
| * visible to the right of the every item is scrolled out of view. |
| * The fix is to do the arrow traversal in Java and not call the |
| * default handler. |
| */ |
| case 125: { /* Down */ |
| int index = getSelectionIndex (); |
| setSelection (Math.min (itemCount - 1, index + 1), true); |
| return OS.noErr; |
| } |
| case 126: { /* Up*/ |
| int index = getSelectionIndex (); |
| setSelection (Math.max (0, index - 1), true); |
| return OS.noErr; |
| } |
| } |
| return result; |
| } |
| |
| int itemNotificationProc (int browser, int id, int message) { |
| switch (message) { |
| case OS.kDataBrowserItemSelected: |
| case OS.kDataBrowserItemDeselected: { |
| if (ignoreSelect) break; |
| int [] first = new int [1], last = new int [1]; |
| OS.GetDataBrowserSelectionAnchor (handle, first, last); |
| boolean selected = false; |
| if ((style & SWT.MULTI) != 0) { |
| int modifiers = OS.GetCurrentEventKeyModifiers (); |
| if ((modifiers & OS.shiftKey) != 0) { |
| if (message == OS.kDataBrowserItemSelected) { |
| selected = first [0] == id || last [0] == id; |
| } else { |
| selected = id == anchorFirst || id == anchorLast; |
| } |
| } else { |
| if ((modifiers & OS.cmdKey) != 0) { |
| selected = true; |
| } else { |
| selected = first [0] == last [0]; |
| } |
| } |
| } else { |
| selected = message == OS.kDataBrowserItemSelected; |
| } |
| if (selected) { |
| anchorFirst = first [0]; |
| anchorLast = last [0]; |
| postEvent (SWT.Selection); |
| } |
| break; |
| } |
| case OS.kDataBrowserItemDoubleClicked: { |
| postEvent (SWT.DefaultSelection); |
| break; |
| } |
| } |
| return OS.noErr; |
| } |
| |
| /** |
| * Gets the index of an item. |
| * <p> |
| * The list is searched starting at 0 until an |
| * item is found that is equal to the search item. |
| * If no item is found, -1 is returned. Indexing |
| * is zero based. |
| * |
| * @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 item) { |
| checkWidget(); |
| if (item == null) error (SWT.ERROR_NULL_ARGUMENT); |
| for (int i=0; i<itemCount; i++) { |
| if (items [i] == item) return i; |
| } |
| return -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> |
| * @exception SWTError <ul> |
| * <li>ERROR_CANNOT_GET_COUNT - if the operation fails because of an operating system failure while getting the item count</li> |
| * <li>ERROR_CANNOT_GET_ITEM - if the operation fails because of an operating system failure while getting an item</li> |
| * </ul> |
| */ |
| public int indexOf (String string, int start) { |
| checkWidget(); |
| if (string == null) error (SWT.ERROR_NULL_ARGUMENT); |
| for (int i=start; i<itemCount; i++) { |
| if (items [i] == string) return i; |
| } |
| return -1; |
| } |
| |
| /** |
| * Returns <code>true</code> if the item is selected, |
| * and <code>false</code> otherwise. Indices out of |
| * range are ignored. |
| * |
| * @param index the index of the item |
| * @return the visibility state of the item at the index |
| * |
| * @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 boolean isSelected (int index) { |
| checkWidget(); |
| return OS.IsDataBrowserItemSelected (handle, index + 1); |
| } |
| |
| /** |
| * Removes the item from the receiver 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(); |
| if (!(0 <= index && index < itemCount)) error (SWT.ERROR_INVALID_RANGE); |
| int [] id = new int [] {itemCount}; |
| if (OS.RemoveDataBrowserItems (handle, OS.kDataBrowserNoItem, id.length, id, 0) != OS.noErr) { |
| error (SWT.ERROR_ITEM_NOT_REMOVED); |
| } |
| System.arraycopy (items, index + 1, items, index, --itemCount - index); |
| items [itemCount] = null; |
| OS.UpdateDataBrowserItems (handle, 0, 0, null, OS.kDataBrowserItemNoProperty, OS.kDataBrowserNoItem); |
| } |
| |
| /** |
| * Removes the items from the receiver 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(); |
| if (!(0 <= start && start <= end && end < itemCount)) { |
| error (SWT.ERROR_INVALID_RANGE); |
| } |
| int length = end - start + 1; |
| for (int i=0; i<length; i++) remove (start); |
| } |
| |
| /** |
| * 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(); |
| if (string == null) error (SWT.ERROR_NULL_ARGUMENT); |
| int index = indexOf (string, 0); |
| if (index == -1) error (SWT.ERROR_INVALID_ARGUMENT); |
| remove (index); |
| } |
| |
| /** |
| * Removes the items from the receiver at the given |
| * zero-relative indices. |
| * |
| * @param indices the array of indices of the items |
| * |
| * @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 indices 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> |
| * @exception SWTError <ul> |
| * <li>ERROR_ITEM_NOT_REMOVED - if the operation fails because of an operating system failure</li> |
| * </ul> |
| */ |
| public void remove (int [] indices) { |
| if (indices == null) error (SWT.ERROR_NULL_ARGUMENT); |
| int [] newIndices = new int [indices.length]; |
| System.arraycopy (indices, 0, newIndices, 0, indices.length); |
| sort (newIndices); |
| int last = -1; |
| for (int i=0; i<newIndices.length; i++) { |
| int index = newIndices [i]; |
| if (index != last || i == 0) remove (index); |
| last = index; |
| } |
| } |
| |
| /** |
| * Removes all of the items from the receiver. |
| * <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.RemoveDataBrowserItems (handle, OS.kDataBrowserNoItem, 0, null, 0); |
| items = new String [4]; |
| itemCount = anchorFirst = anchorLast = 0; |
| } |
| |
| /** |
| * 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 (0 <= index && index < itemCount) { |
| int [] id = new int [] {index + 1}; |
| ignoreSelect = true; |
| int operation = (style & SWT.SINGLE) != 0 ? OS.kDataBrowserItemsAssign: OS.kDataBrowserItemsAdd; |
| OS.SetDataBrowserSelectedItems (handle, id.length, id, operation); |
| ignoreSelect = false; |
| } |
| } |
| |
| /** |
| * Selects the items at the given zero-relative indices in the receiver. |
| * If the item at the index was already selected, it remains |
| * selected. The range of the indices is inclusive. Indices that are |
| * out of range are ignored and no items will be selected if start is |
| * greater than end. |
| * |
| * @param start the start of the range |
| * @param end the end of the range |
| * |
| * @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 start, int end) { |
| checkWidget(); |
| //NOT DONE - range check |
| int length = end - start + 1; |
| if (length <= 0) return; |
| int [] ids = new int [length]; |
| for (int i=0; i<length; i++) ids [i] = end - i + 1; |
| ignoreSelect = true; |
| int operation = (style & SWT.SINGLE) != 0 ? OS.kDataBrowserItemsAssign: OS.kDataBrowserItemsAdd; |
| OS.SetDataBrowserSelectedItems (handle, length, ids, operation); |
| ignoreSelect = false; |
| } |
| |
| /** |
| * Selects the items at the given zero-relative indices in the receiver. |
| * If the item at the given zero-relative index in the receiver |
| * is not selected, it is selected. If the item at the index |
| * was selected, it remains selected. Indices that are out |
| * of range and duplicate indices are ignored. |
| * |
| * @param indices the array of indices for the items to select |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the set of indices 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 select (int [] indices) { |
| checkWidget(); |
| if (indices == null) error (SWT.ERROR_NULL_ARGUMENT); |
| //NOT DONE - range check |
| int length = indices.length; |
| int [] ids = new int [length]; |
| for (int i=0; i<length; i++) ids [i] = indices [length - i - 1] + 1; |
| ignoreSelect = true; |
| int operation = (style & SWT.SINGLE) != 0 ? OS.kDataBrowserItemsAssign: OS.kDataBrowserItemsAdd; |
| OS.SetDataBrowserSelectedItems (handle, ids.length, ids, operation); |
| ignoreSelect = false; |
| } |
| |
| void select (String [] items) { |
| checkWidget(); |
| if (items == null) error (SWT.ERROR_NULL_ARGUMENT); |
| //NOT DONE - range check |
| int length = items.length; |
| int [] ids = new int [length]; |
| for (int i=0; i<length; i++) ids [i] = indexOf (items [length - i - 1]) + 1; |
| ignoreSelect = true; |
| int operation = (style & SWT.SINGLE) != 0 ? OS.kDataBrowserItemsAssign: OS.kDataBrowserItemsAdd; |
| OS.SetDataBrowserSelectedItems (handle, length, ids, operation); |
| ignoreSelect = false; |
| } |
| |
| /** |
| * Selects all the items in the receiver. |
| * |
| * @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 selectAll () { |
| checkWidget (); |
| if ((style & SWT.SINGLE) != 0) return; |
| ignoreSelect = true; |
| OS.SetDataBrowserSelectedItems (handle, 0, null, OS.kDataBrowserItemsAssign); |
| ignoreSelect = false; |
| } |
| |
| int setBounds (int control, int x, int y, int width, int height, boolean move, boolean resize, boolean events) { |
| /* |
| * Ensure that the top item is visible when the tree is resized |
| * from a zero size to a size that can show the selection. |
| */ |
| //TODO - optimize |
| int index = -1; |
| if (resize && control == handle) { |
| Rectangle rect = getClientArea (); |
| if (rect.height < getItemHeight ()) index = getTopIndex (); |
| } |
| int result = super.setBounds (control, x, y, width, height, move, resize, events); |
| if (index != -1) showIndex (index); |
| return result; |
| } |
| |
| /** |
| * Sets the text of the item in the receiver's list at the given |
| * zero-relative index to the string argument. This is equivalent |
| * to <code>remove</code>'ing the old item at the index, and then |
| * <code>add</code>'ing the new item at that index. |
| * |
| * @param index the index for the item |
| * @param string the new text for the item |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> |
| * <li>ERROR_NULL_ARGUMENT - if the string is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * @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); |
| if (!(0 <= index && index < itemCount)) error (SWT.ERROR_INVALID_RANGE); |
| int [] id = new int [] {index + 1}; |
| items [index] = string; |
| OS.UpdateDataBrowserItems (handle, OS.kDataBrowserNoItem, id.length, id, OS.kDataBrowserItemNoProperty, OS.kDataBrowserNoItem); |
| } |
| |
| /** |
| * Sets the receiver's items 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> |
| * </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> |
| */ |
| public void setItems (String [] items) { |
| checkWidget(); |
| if (items == null) error (SWT.ERROR_NULL_ARGUMENT); |
| OS.RemoveDataBrowserItems (handle, OS.kDataBrowserNoItem, 0, null, 0); |
| if (OS.AddDataBrowserItems(handle, OS.kDataBrowserNoItem, items.length, null, 0) != OS.noErr) { |
| error (SWT.ERROR_ITEM_NOT_ADDED); |
| } |
| this.items = new String [items.length]; |
| System.arraycopy (items, 0, this.items, 0, items.length); |
| itemCount = items.length; |
| } |
| |
| /** |
| * Selects the item at the given zero-relative index in the receiver. |
| * If the item at the index was already selected, it remains selected. |
| * The current selected is first cleared, then the new items are 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> |
| * @see List#deselectAll() |
| * @see List#select(int) |
| */ |
| public void setSelection (int index) { |
| checkWidget(); |
| setSelection (index, false); |
| } |
| |
| void setSelection (int index, boolean notify) { |
| // checkWidget(); |
| if (0 <= index && index < itemCount) { |
| int [] id = new int [] {index + 1}; |
| if (!notify) ignoreSelect = true; |
| OS.SetDataBrowserSelectedItems (handle, id.length, id, OS.kDataBrowserItemsAssign); |
| if (!notify) ignoreSelect = false; |
| showIndex (index); |
| } |
| } |
| |
| /** |
| * Selects the items at the given zero-relative indices in the receiver. |
| * The current selection is first cleared, then the new items are selected. |
| * Indices that are out of range are ignored and no items will be selected |
| * if start is greater than end. |
| * |
| * @param start the start index of the items to select |
| * @param end the end index of the items 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> |
| * |
| * @see Table#deselectAll() |
| * @see Table#select(int,int) |
| */ |
| public void setSelection (int start, int end) { |
| checkWidget (); |
| int length = end - start + 1; |
| if (length <= 0) return; |
| int count = length; |
| int [] ids = new int [length]; |
| for (int i=start; i<=end; i++) { |
| if (0 <= i && i < itemCount) ids [--count] = i + 1; |
| } |
| if (count != 0) return; |
| ignoreSelect = true; |
| OS.SetDataBrowserSelectedItems (handle, length, ids, OS.kDataBrowserItemsAssign); |
| ignoreSelect = false; |
| if (ids.length > 0) showIndex (ids [0] - 1); |
| } |
| |
| /** |
| * Selects the items at the given zero-relative indices in the receiver. |
| * The current selection is first cleared, then the new items are selected. |
| * |
| * @param indices the indices of the items to select |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the set of indices 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 List#deselectAll() |
| * @see List#select(int[]) |
| */ |
| public void setSelection (int [] indices) { |
| if (indices == null) error (SWT.ERROR_NULL_ARGUMENT); |
| int length = indices.length; |
| int count = length; |
| int [] ids = new int [length]; |
| for (int i=0; i<length; i++) { |
| int index = indices [i]; |
| if (0 <= index && index < itemCount) ids [--count] = index + 1; |
| } |
| if (count != 0) return; |
| ignoreSelect = true; |
| OS.SetDataBrowserSelectedItems (handle, length, ids, OS.kDataBrowserItemsAssign); |
| ignoreSelect = false; |
| if (ids.length > 0) showIndex (ids [0] - 1); |
| } |
| |
| /** |
| * Sets the receiver's selection to be the given array of items. |
| * The current selected is first cleared, then the new items are |
| * selected. |
| * |
| * @param items the array of items |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the set of items 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 List#deselectAll() |
| * @see List#select(int) |
| */ |
| public void setSelection (String [] items) { |
| checkWidget(); |
| if (items == null) error (SWT.ERROR_NULL_ARGUMENT); |
| int length = items.length; |
| int count = length; |
| int [] ids = new int [length]; |
| for (int i=0; i<length; i++) { |
| int index = indexOf (items [i]); |
| if (0 <= index && index < itemCount) ids [--count] = index + 1; |
| } |
| if (count != 0) return; |
| ignoreSelect = true; |
| OS.SetDataBrowserSelectedItems (handle, length, ids, OS.kDataBrowserItemsAssign); |
| ignoreSelect = false; |
| if (ids.length > 0) showIndex (ids [0] - 1); |
| } |
| |
| /** |
| * Sets the zero-relative index of the item which is currently |
| * at the top of the receiver. This index can change when items |
| * are scrolled or new items are added and removed. |
| * |
| * @param index the index of the top 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 void setTopIndex (int index) { |
| checkWidget(); |
| int [] top = new int [1], left = new int [1]; |
| OS.GetDataBrowserScrollPosition (handle, top, left); |
| top [0] = index * getItemHeight (); |
| OS.SetDataBrowserScrollPosition (handle, top [0], left [0]); |
| } |
| |
| void showIndex (int index) { |
| if (0 <= index && index < itemCount) { |
| short [] width = new short [1]; |
| OS.GetDataBrowserTableViewNamedColumnWidth (handle, COLUMN_ID, width); |
| Rect rect = new Rect (), inset = new Rect (); |
| OS.GetControlBounds (handle, rect); |
| OS.GetDataBrowserScrollBarInset (handle, inset); |
| OS.SetDataBrowserTableViewNamedColumnWidth (handle, COLUMN_ID, (short)(rect.right - rect.left - inset.left - inset.right)); |
| OS.RevealDataBrowserItem (handle, index + 1, COLUMN_ID, (byte) (OS.kDataBrowserRevealWithoutSelecting | OS.kDataBrowserRevealAndCenterInView)); |
| OS.SetDataBrowserTableViewNamedColumnWidth (handle, COLUMN_ID, (short)width [0]); |
| } |
| } |
| |
| /** |
| * Shows the selection. If the selection is already showing in the receiver, |
| * this method simply returns. Otherwise, the items are scrolled until |
| * the selection is 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> |
| */ |
| public void showSelection () { |
| checkWidget(); |
| int index = getSelectionIndex (); |
| if (index >= 0) showIndex (index); |
| } |
| |
| } |