diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/List.java')
| -rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/List.java | 1716 |
1 files changed, 0 insertions, 1716 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/List.java b/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/List.java deleted file mode 100755 index aecad23367..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/List.java +++ /dev/null @@ -1,1716 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2009 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.swt.widgets; - - -import org.eclipse.swt.internal.win32.*; -import org.eclipse.swt.*; -import org.eclipse.swt.graphics.*; -import org.eclipse.swt.events.*; - -/** - * Instances of this class represent a selectable user interface - * object that displays a list of strings and issues notification - * when a string is 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> - * - * @see <a href="http://www.eclipse.org/swt/snippets/#list">List 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 List extends Scrollable { - static final int INSET = 3; - static final int /*long*/ ListProc; - static final TCHAR ListClass = new TCHAR (0, "LISTBOX", true); - static { - WNDCLASS lpWndClass = new WNDCLASS (); - OS.GetClassInfo (0, ListClass, lpWndClass); - ListProc = lpWndClass.lpfnWndProc; - } - -/** - * 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> - * - * @see #add(String,int) - */ -public void add (String string) { - checkWidget (); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - TCHAR buffer = new TCHAR (getCodePage (), string, true); - int result = (int)/*64*/OS.SendMessage (handle, OS.LB_ADDSTRING, 0, buffer); - if (result == OS.LB_ERR) error (SWT.ERROR_ITEM_NOT_ADDED); - if (result == OS.LB_ERRSPACE) error (SWT.ERROR_ITEM_NOT_ADDED); - if ((style & SWT.H_SCROLL) != 0) setScrollWidth (buffer, true); -} -/** - * 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); - TCHAR buffer = new TCHAR (getCodePage (), string, true); - int result = (int)/*64*/OS.SendMessage (handle, OS.LB_INSERTSTRING, index, buffer); - if (result == OS.LB_ERRSPACE) error (SWT.ERROR_ITEM_NOT_ADDED); - if (result == OS.LB_ERR) { - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - if (0 <= index && index <= count) { - error (SWT.ERROR_ITEM_NOT_ADDED); - } else { - error (SWT.ERROR_INVALID_RANGE); - } - } - if ((style & SWT.H_SCROLL) != 0) setScrollWidth (buffer, true); -} - -/** - * 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 selection changes. - * <code>widgetDefaultSelected</code> is typically called when an item is double-clicked. - * </p> - * - * @param listener the listener which should be notified when the user changes the receiver's selection - * - * @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); -} - -int /*long*/ callWindowProc (int /*long*/ hwnd, int msg, int /*long*/ wParam, int /*long*/ lParam) { - if (handle == 0) return 0; - boolean redraw = false; - switch (msg) { - case OS.WM_HSCROLL: - case OS.WM_VSCROLL: { - redraw = findImageControl () != null && getDrawing() && OS.IsWindowVisible (handle); - if (redraw) OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); - break; - } - } - int /*long*/ code = OS.CallWindowProc (ListProc, hwnd, msg, wParam, lParam); - switch (msg) { - case OS.WM_HSCROLL: - case OS.WM_VSCROLL: { - if (redraw) { - OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); - OS.InvalidateRect (handle, null, true); - } - break; - } - } - return code; -} - -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, height = 0; - if (wHint == SWT.DEFAULT) { - if ((style & SWT.H_SCROLL) != 0) { - width = (int)/*64*/OS.SendMessage (handle, OS.LB_GETHORIZONTALEXTENT, 0, 0); - width -= INSET; - } else { - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - int /*long*/ newFont, oldFont = 0; - int /*long*/ hDC = OS.GetDC (handle); - newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); - if (newFont != 0) oldFont = OS.SelectObject (hDC, newFont); - RECT rect = new RECT (); - int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; - int cp = getCodePage (); - TCHAR buffer = new TCHAR (cp, 64 + 1); - for (int i=0; i<count; i++) { - int length = (int)/*64*/OS.SendMessage (handle, OS.LB_GETTEXTLEN, i, 0); - if (length != OS.LB_ERR) { - if (length + 1 > buffer.length ()) { - buffer = new TCHAR (cp, length + 1); - } - int result = (int)/*64*/OS.SendMessage (handle, OS.LB_GETTEXT, i, buffer); - if (result != OS.LB_ERR) { - OS.DrawText (hDC, buffer, length, rect, flags); - width = Math.max (width, rect.right - rect.left); - } - } - } - if (newFont != 0) OS.SelectObject (hDC, oldFont); - OS.ReleaseDC (handle, hDC); - } - } - if (hHint == SWT.DEFAULT) { - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - int itemHeight = (int)/*64*/OS.SendMessage (handle, OS.LB_GETITEMHEIGHT, 0, 0); - height = count * itemHeight; - } - if (width == 0) width = DEFAULT_WIDTH; - if (height == 0) height = DEFAULT_HEIGHT; - if (wHint != SWT.DEFAULT) width = wHint; - if (hHint != SWT.DEFAULT) height = hHint; - int border = getBorderWidth (); - width += border * 2 + INSET; - height += border * 2; - if ((style & SWT.V_SCROLL) != 0) { - width += OS.GetSystemMetrics (OS.SM_CXVSCROLL); - } - if ((style & SWT.H_SCROLL) != 0) { - height += OS.GetSystemMetrics (OS.SM_CYHSCROLL); - } - return new Point (width, height); -} - -int defaultBackground () { - return OS.GetSysColor (OS.COLOR_WINDOW); -} - -/** - * 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); - if (indices.length == 0) return; - if ((style & SWT.SINGLE) != 0) { - int oldIndex = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCURSEL, 0, 0); - if (oldIndex == OS.LB_ERR) return; - for (int i=0; i<indices.length; i++) { - if (oldIndex == indices [i]) { - OS.SendMessage (handle, OS.LB_SETCURSEL, -1, 0); - return; - } - } - return; - } - for (int i=0; i<indices.length; i++) { - int index = indices [i]; - if (index != -1) { - OS.SendMessage (handle, OS.LB_SETSEL, 0, index); - } - } -} - -/** - * 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 (index == -1) return; - if ((style & SWT.SINGLE) != 0) { - int oldIndex = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCURSEL, 0, 0); - if (oldIndex == OS.LB_ERR) return; - if (oldIndex == index) OS.SendMessage (handle, OS.LB_SETCURSEL, -1, 0); - return; - } - OS.SendMessage (handle, OS.LB_SETSEL, 0, index); -} - -/** - * 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 (); - if (start > end) return; - if ((style & SWT.SINGLE) != 0) { - int oldIndex = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCURSEL, 0, 0); - if (oldIndex == OS.LB_ERR) return; - if (start <= oldIndex && oldIndex <= end) { - OS.SendMessage (handle, OS.LB_SETCURSEL, -1, 0); - } - return; - } - /* - * Ensure that at least one item is contained in - * the range from start to end. Note that when - * start = end, LB_SELITEMRANGEEX deselects the - * item. - */ - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - if (start < 0 && end < 0) return; - if (start >= count && end >= count) return; - start = Math.min (count - 1, Math.max (0, start)); - end = Math.min (count - 1, Math.max (0, end)); - OS.SendMessage (handle, OS.LB_SELITEMRANGEEX, end, start); -} - -/** - * 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 (); - if ((style & SWT.SINGLE) != 0) { - OS.SendMessage (handle, OS.LB_SETCURSEL, -1, 0); - } else { - OS.SendMessage (handle, OS.LB_SETSEL, 0, -1); - } -} - -/** - * Returns the zero-relative index of the item which currently - * has the focus in the receiver, or -1 if no item 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 result = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCARETINDEX, 0, 0); - if (result == 0) { - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - if (count == 0) return -1; - } - return result; -} - -/** - * 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> - */ -public String getItem (int index) { - checkWidget (); - int length = (int)/*64*/OS.SendMessage (handle, OS.LB_GETTEXTLEN, index, 0); - if (length != OS.LB_ERR) { - TCHAR buffer = new TCHAR (getCodePage (), length + 1); - int result = (int)/*64*/OS.SendMessage (handle, OS.LB_GETTEXT, index, buffer); - if (result != OS.LB_ERR) return buffer.toString (0, length); - } - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - if (0 <= index && index < count) error (SWT.ERROR_CANNOT_GET_ITEM); - error (SWT.ERROR_INVALID_RANGE); - return ""; -} - -/** - * 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> - */ -public int getItemCount () { - checkWidget (); - int result = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - if (result == OS.LB_ERR) error (SWT.ERROR_CANNOT_GET_COUNT); - return result; -} - -/** - * Returns the height of the area which would be used to - * display <em>one</em> of the items in the 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 (); - int result = (int)/*64*/OS.SendMessage (handle, OS.LB_GETITEMHEIGHT, 0, 0); - if (result == OS.LB_ERR) error (SWT.ERROR_CANNOT_GET_ITEM_HEIGHT); - return result; -} - -/** - * Returns a (possibly empty) 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> - */ -public String [] getItems () { - checkWidget (); - int count = getItemCount (); - String [] result = new String [count]; - for (int i=0; i<count; i++) result [i] = getItem (i); - return result; -} - -/** - * Returns an array of <code>String</code>s that are currently - * selected in the receiver. The order of the items is unspecified. - * 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> - */ -public String [] getSelection () { - checkWidget (); - int [] indices = getSelectionIndices (); - String [] result = new String [indices.length]; - for (int i=0; i<indices.length; i++) { - result [i] = getItem (indices [i]); - } - 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> - */ -public int getSelectionCount () { - checkWidget (); - if ((style & SWT.SINGLE) != 0) { - int result = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCURSEL, 0, 0); - if (result == OS.LB_ERR) return 0; - return 1; - } - int result = (int)/*64*/OS.SendMessage (handle, OS.LB_GETSELCOUNT, 0, 0); - if (result == OS.LB_ERR) error (SWT.ERROR_CANNOT_GET_COUNT); - return result; -} - -/** - * 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 or -1 - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public int getSelectionIndex () { - checkWidget (); - if ((style & SWT.SINGLE) != 0) { - return (int)/*64*/OS.SendMessage (handle, OS.LB_GETCURSEL, 0, 0); - } - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETSELCOUNT, 0, 0); - if (count == OS.LB_ERR) error (SWT.ERROR_CANNOT_GET_SELECTION); - if (count == 0) return -1; - int index = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCARETINDEX, 0, 0); - int result = (int)/*64*/OS.SendMessage (handle, OS.LB_GETSEL, index, 0); - if (result == OS.LB_ERR) error (SWT.ERROR_CANNOT_GET_SELECTION); - if (result != 0) return index; - int [] buffer = new int[1]; - result = (int)/*64*/OS.SendMessage (handle, OS.LB_GETSELITEMS, 1, buffer); - if (result != 1) error (SWT.ERROR_CANNOT_GET_SELECTION); - return buffer [0]; -} - -/** - * Returns the zero-relative indices of the items which are currently - * selected in the receiver. The order of the indices is unspecified. - * 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> - */ -public int [] getSelectionIndices () { - checkWidget (); - if ((style & SWT.SINGLE) != 0) { - int result = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCURSEL, 0, 0); - if (result == OS.LB_ERR) return new int [0]; - return new int [] {result}; - } - int length = (int)/*64*/OS.SendMessage (handle, OS.LB_GETSELCOUNT, 0, 0); - if (length == OS.LB_ERR) error (SWT.ERROR_CANNOT_GET_SELECTION); - int [] indices = new int [length]; - int result = (int)/*64*/OS.SendMessage (handle, OS.LB_GETSELITEMS, length, indices); - if (result != length) error (SWT.ERROR_CANNOT_GET_SELECTION); - return indices; -} - -/** - * 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 (); - return (int)/*64*/OS.SendMessage (handle, OS.LB_GETTOPINDEX, 0, 0); -} - -/** - * 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 string) { - return indexOf (string, 0); -} - -/** - * Searches the receiver's list starting at the given, - * zero-relative index until an item is found that is equal - * to the argument, and returns the index of that item. If - * no item is found or the starting index is out of range, - * returns -1. - * - * @param string the search item - * @param start the zero-relative index at which to start 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); - - /* - * Bug in Windows. For some reason, LB_FINDSTRINGEXACT - * will not find empty strings even though it is legal - * to insert an empty string into a list. The fix is - * to search the list, an item at a time. - */ - if (string.length () == 0) { - int count = getItemCount (); - for (int i=start; i<count; i++) { - if (string.equals (getItem (i))) return i; - } - return -1; - } - - /* Use LB_FINDSTRINGEXACT to search for the item */ - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - if (!(0 <= start && start < count)) return -1; - int index = start - 1, last; - TCHAR buffer = new TCHAR (getCodePage (), string, true); - do { - index = (int)/*64*/OS.SendMessage (handle, OS.LB_FINDSTRINGEXACT, last = index, buffer); - if (index == OS.LB_ERR || index <= last) return -1; - } while (!string.equals (getItem (index))); - return index; -} - -/** - * 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 selection 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 (); - int result = (int)/*64*/OS.SendMessage (handle, OS.LB_GETSEL, index, 0); - return (result != 0) && (result != OS.LB_ERR); -} - -/** - * 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> - */ -public void remove (int [] indices) { - checkWidget (); - if (indices == null) error (SWT.ERROR_NULL_ARGUMENT); - if (indices.length == 0) return; - int [] newIndices = new int [indices.length]; - System.arraycopy (indices, 0, newIndices, 0, indices.length); - sort (newIndices); - int start = newIndices [newIndices.length - 1], end = newIndices [0]; - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - if (!(0 <= start && start <= end && end < count)) { - error (SWT.ERROR_INVALID_RANGE); - } - int topIndex = (int)/*64*/OS.SendMessage (handle, OS.LB_GETTOPINDEX, 0, 0); - RECT rect = null; - int /*long*/ hDC = 0, oldFont = 0, newFont = 0; - int newWidth = 0; - if ((style & SWT.H_SCROLL) != 0) { - rect = new RECT (); - hDC = OS.GetDC (handle); - newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); - if (newFont != 0) oldFont = OS.SelectObject (hDC, newFont); - } - int cp = getCodePage (); - int i = 0, topCount = 0, last = -1; - while (i < newIndices.length) { - int index = newIndices [i]; - if (index != last) { - TCHAR buffer = null; - if ((style & SWT.H_SCROLL) != 0) { - int length = (int)/*64*/OS.SendMessage (handle, OS.LB_GETTEXTLEN, index, 0); - if (length == OS.LB_ERR) break; - buffer = new TCHAR (cp, length + 1); - int result = (int)/*64*/OS.SendMessage (handle, OS.LB_GETTEXT, index, buffer); - if (result == OS.LB_ERR) break; - } - int result = (int)/*64*/OS.SendMessage (handle, OS.LB_DELETESTRING, index, 0); - if (result == OS.LB_ERR) break; - if ((style & SWT.H_SCROLL) != 0) { - int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; - OS.DrawText (hDC, buffer, -1, rect, flags); - newWidth = Math.max (newWidth, rect.right - rect.left); - } - if (index < topIndex) topCount++; - last = index; - } - i++; - } - if ((style & SWT.H_SCROLL) != 0) { - if (newFont != 0) OS.SelectObject (hDC, oldFont); - OS.ReleaseDC (handle, hDC); - setScrollWidth (newWidth, false); - } - if (topCount > 0) { - topIndex -= topCount; - OS.SendMessage (handle, OS.LB_SETTOPINDEX, topIndex, 0); - } - if (i < newIndices.length) error (SWT.ERROR_ITEM_NOT_REMOVED); -} - -/** - * 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> - */ -public void remove (int index) { - checkWidget (); - TCHAR buffer = null; - if ((style & SWT.H_SCROLL) != 0) { - int length = (int)/*64*/OS.SendMessage (handle, OS.LB_GETTEXTLEN, index, 0); - if (length == OS.LB_ERR) { - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - if (0 <= index && index < count) error (SWT.ERROR_ITEM_NOT_REMOVED); - error (SWT.ERROR_INVALID_RANGE); - } - buffer = new TCHAR (getCodePage (), length + 1); - int result = (int)/*64*/OS.SendMessage (handle, OS.LB_GETTEXT, index, buffer); - if (result == OS.LB_ERR) { - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - if (0 <= index && index < count) error (SWT.ERROR_ITEM_NOT_REMOVED); - error (SWT.ERROR_INVALID_RANGE); - } - } - int topIndex = (int)/*64*/OS.SendMessage (handle, OS.LB_GETTOPINDEX, 0, 0); - int result = (int)/*64*/OS.SendMessage (handle, OS.LB_DELETESTRING, index, 0); - if (result == OS.LB_ERR) { - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - if (0 <= index && index < count) error (SWT.ERROR_ITEM_NOT_REMOVED); - error (SWT.ERROR_INVALID_RANGE); - } - if ((style & SWT.H_SCROLL) != 0) setScrollWidth (buffer, false); - if (index < topIndex) { - OS.SendMessage (handle, OS.LB_SETTOPINDEX, topIndex - 1, 0); - } -} - -/** - * 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> - */ -public void remove (int start, int end) { - checkWidget (); - if (start > end) return; - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - if (!(0 <= start && start <= end && end < count)) { - error (SWT.ERROR_INVALID_RANGE); - } - if (start == 0 && end == count - 1) { - removeAll (); - return; - } - int topIndex = (int)/*64*/OS.SendMessage (handle, OS.LB_GETTOPINDEX, 0, 0); - RECT rect = null; - int /*long*/ hDC = 0, oldFont = 0, newFont = 0; - int newWidth = 0; - if ((style & SWT.H_SCROLL) != 0) { - rect = new RECT (); - hDC = OS.GetDC (handle); - newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); - if (newFont != 0) oldFont = OS.SelectObject (hDC, newFont); - } - int cp = getCodePage (); - int index = start; - int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; - while (index <= end) { - TCHAR buffer = null; - if ((style & SWT.H_SCROLL) != 0) { - int length = (int)/*64*/OS.SendMessage (handle, OS.LB_GETTEXTLEN, start, 0); - if (length == OS.LB_ERR) break; - buffer = new TCHAR (cp, length + 1); - int result = (int)/*64*/OS.SendMessage (handle, OS.LB_GETTEXT, start, buffer); - if (result == OS.LB_ERR) break; - } - int result = (int)/*64*/OS.SendMessage (handle, OS.LB_DELETESTRING, start, 0); - if (result == OS.LB_ERR) break; - if ((style & SWT.H_SCROLL) != 0) { - OS.DrawText (hDC, buffer, -1, rect, flags); - newWidth = Math.max (newWidth, rect.right - rect.left); - } - index++; - } - if ((style & SWT.H_SCROLL) != 0) { - if (newFont != 0) OS.SelectObject (hDC, oldFont); - OS.ReleaseDC (handle, hDC); - setScrollWidth (newWidth, false); - } - if (end < topIndex) { - topIndex -= end - start + 1; - OS.SendMessage (handle, OS.LB_SETTOPINDEX, topIndex, 0); - } - if (index <= end) 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> - */ -public void remove (String string) { - checkWidget (); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - int index = indexOf (string, 0); - if (index == -1) error (SWT.ERROR_INVALID_ARGUMENT); - remove (index); -} - -/** - * Removes all of the items from the receiver. - * <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.SendMessage (handle, OS.LB_RESETCONTENT, 0, 0); - if ((style & SWT.H_SCROLL) != 0) { - OS.SendMessage (handle, OS.LB_SETHORIZONTALEXTENT, 0, 0); - } -} - -/** - * 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); -} - -/** - * Selects the items at the given zero-relative indices in the receiver. - * The current selection is not cleared before the new items are selected. - * <p> - * If the item at a given index is not selected, it is selected. - * If the item at a given index was already selected, it remains selected. - * Indices that are out of range and duplicate indices are ignored. - * If the receiver is single-select and multiple indices are specified, - * then all indices are ignored. - * - * @param indices the array of indices for the items to select - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the array 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#setSelection(int[]) - */ -public void select (int [] indices) { - checkWidget (); - if (indices == null) error (SWT.ERROR_NULL_ARGUMENT); - int length = indices.length; - if (length == 0 || ((style & SWT.SINGLE) != 0 && length > 1)) return; - select (indices, false); -} - -void select (int [] indices, boolean scroll) { - int i = 0; - while (i < indices.length) { - int index = indices [i]; - if (index != -1) { - select (index, false); - } - i++; - } - if (scroll) showSelection (); -} - -/** - * 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 (); - select (index, false); -} - -void select (int index, boolean scroll) { - if (index < 0) return; - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - if (index >= count) return; - if (scroll) { - if ((style & SWT.SINGLE) != 0) { - OS.SendMessage (handle, OS.LB_SETCURSEL, index, 0); - } else { - OS.SendMessage (handle, OS.LB_SETSEL, 1, index); - } - return; - } - int topIndex = (int)/*64*/OS.SendMessage (handle, OS.LB_GETTOPINDEX, 0, 0); - RECT itemRect = new RECT (), selectedRect = null; - OS.SendMessage (handle, OS.LB_GETITEMRECT, index, itemRect); - boolean redraw = getDrawing () && OS.IsWindowVisible (handle); - if (redraw) { - OS.UpdateWindow (handle); - OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); - } - int focusIndex = -1; - if ((style & SWT.SINGLE) != 0) { - int oldIndex = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCURSEL, 0, 0); - if (oldIndex != -1) { - selectedRect = new RECT (); - OS.SendMessage (handle, OS.LB_GETITEMRECT, oldIndex, selectedRect); - } - OS.SendMessage (handle, OS.LB_SETCURSEL, index, 0); - } else { - focusIndex = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCARETINDEX, 0, 0); - OS.SendMessage (handle, OS.LB_SETSEL, 1, index); - } - if ((style & SWT.MULTI) != 0) { - if (focusIndex != -1) { - OS.SendMessage (handle, OS.LB_SETCARETINDEX, focusIndex, 0); - } - } - OS.SendMessage (handle, OS.LB_SETTOPINDEX, topIndex, 0); - if (redraw) { - OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); - OS.ValidateRect (handle, null); - OS.InvalidateRect (handle, itemRect, true); - if (selectedRect != null) { - OS.InvalidateRect (handle, selectedRect, true); - } - } -} - -/** - * Selects the items in the range specified by the given zero-relative - * indices in the receiver. The range of indices is inclusive. - * The current selection is not cleared before the new items are selected. - * <p> - * If an item in the given range is not selected, it is selected. - * If an item in the given range was already selected, it remains selected. - * Indices that are out of range are ignored and no items will be selected - * if start is greater than end. - * If the receiver is single-select and there is more than one item in the - * given range, then all indices are ignored. - * - * @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> - * - * @see List#setSelection(int,int) - */ -public void select (int start, int end) { - checkWidget (); - if (end < 0 || start > end || ((style & SWT.SINGLE) != 0 && start != end)) return; - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - if (count == 0 || start >= count) return; - start = Math.max (0, start); - end = Math.min (end, count - 1); - if ((style & SWT.SINGLE) != 0) { - select (start, false); - } else { - select (start, end, false); - } -} - -void select (int start, int end, boolean scroll) { - /* - * Note that when start = end, LB_SELITEMRANGEEX - * deselects the item. - */ - if (start == end) { - select (start, scroll); - return; - } - OS.SendMessage (handle, OS.LB_SELITEMRANGEEX, start, end); - if (scroll) showSelection (); -} - -/** - * Selects all of the items in the receiver. - * <p> - * If the receiver is single-select, do nothing. - * - * @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; - OS.SendMessage (handle, OS.LB_SETSEL, 1, -1); -} - -void setFocusIndex (int index) { -// checkWidget (); - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - if (!(0 <= index && index < count)) return; - OS.SendMessage (handle, OS.LB_SETCARETINDEX, index, 0); -} - -public void setFont (Font font) { - checkWidget (); - super.setFont (font); - if ((style & SWT.H_SCROLL) != 0) setScrollWidth (); -} - -/** - * 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 topIndex = getTopIndex (); - boolean isSelected = isSelected (index); - remove (index); - add (string, index); - if (isSelected) select (index, false); - setTopIndex (topIndex); -} - -/** - * 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> - * <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); - } - int /*long*/ oldProc = OS.GetWindowLongPtr (handle, OS.GWLP_WNDPROC); - OS.SetWindowLongPtr (handle, OS.GWLP_WNDPROC, ListProc); - boolean redraw = getDrawing () && OS.IsWindowVisible (handle); - if (redraw) { - OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); - } - RECT rect = null; - int /*long*/ hDC = 0, oldFont = 0, newFont = 0; - int newWidth = 0; - if ((style & SWT.H_SCROLL) != 0) { - rect = new RECT (); - hDC = OS.GetDC (handle); - newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); - if (newFont != 0) oldFont = OS.SelectObject (hDC, newFont); - OS.SendMessage (handle, OS.LB_SETHORIZONTALEXTENT, 0, 0); - } - int length = items.length; - OS.SendMessage (handle, OS.LB_RESETCONTENT, 0, 0); - OS.SendMessage (handle, OS.LB_INITSTORAGE, length, length * 32); - int index = 0; - int cp = getCodePage (); - while (index < length) { - String string = items [index]; - TCHAR buffer = new TCHAR (cp, string, true); - int result = (int)/*64*/OS.SendMessage (handle, OS.LB_ADDSTRING, 0, buffer); - if (result == OS.LB_ERR || result == OS.LB_ERRSPACE) break; - if ((style & SWT.H_SCROLL) != 0) { - int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; - OS.DrawText (hDC, buffer, -1, rect, flags); - newWidth = Math.max (newWidth, rect.right - rect.left); - } - index++; - } - if ((style & SWT.H_SCROLL) != 0) { - if (newFont != 0) OS.SelectObject (hDC, oldFont); - OS.ReleaseDC (handle, hDC); - OS.SendMessage (handle, OS.LB_SETHORIZONTALEXTENT, newWidth + INSET, 0); - } - if (redraw) { - OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); - /* - * This code is intentionally commented. The window proc - * for the list box implements WM_SETREDRAW to invalidate - * and erase the widget. This is undocumented behavior. - * The commented code below shows what is actually happening - * and reminds us that we are relying on this undocumented - * behavior. - */ -// int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE; -// OS.RedrawWindow (handle, null, 0, flags); - } - OS.SetWindowLongPtr (handle, OS.GWLP_WNDPROC, oldProc); - if (index < items.length) error (SWT.ERROR_ITEM_NOT_ADDED); -} - -void setScrollWidth () { - int newWidth = 0; - RECT rect = new RECT (); - int /*long*/ newFont, oldFont = 0; - int /*long*/ hDC = OS.GetDC (handle); - newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); - if (newFont != 0) oldFont = OS.SelectObject (hDC, newFont); - int cp = getCodePage (); - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; - for (int i=0; i<count; i++) { - int length = (int)/*64*/OS.SendMessage (handle, OS.LB_GETTEXTLEN, i, 0); - if (length != OS.LB_ERR) { - TCHAR buffer = new TCHAR (cp, length + 1); - int result = (int)/*64*/OS.SendMessage (handle, OS.LB_GETTEXT, i, buffer); - if (result != OS.LB_ERR) { - OS.DrawText (hDC, buffer, -1, rect, flags); - newWidth = Math.max (newWidth, rect.right - rect.left); - } - } - } - if (newFont != 0) OS.SelectObject (hDC, oldFont); - OS.ReleaseDC (handle, hDC); - OS.SendMessage (handle, OS.LB_SETHORIZONTALEXTENT, newWidth + INSET, 0); -} - -void setScrollWidth (TCHAR buffer, boolean grow) { - RECT rect = new RECT (); - int /*long*/ newFont, oldFont = 0; - int /*long*/ hDC = OS.GetDC (handle); - newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); - if (newFont != 0) oldFont = OS.SelectObject (hDC, newFont); - int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; - OS.DrawText (hDC, buffer, -1, rect, flags); - if (newFont != 0) OS.SelectObject (hDC, oldFont); - OS.ReleaseDC (handle, hDC); - setScrollWidth (rect.right - rect.left, grow); -} - -void setScrollWidth (int newWidth, boolean grow) { - newWidth += INSET; - int width = (int)/*64*/OS.SendMessage (handle, OS.LB_GETHORIZONTALEXTENT, 0, 0); - if (grow) { - if (newWidth <= width) return; - OS.SendMessage (handle, OS.LB_SETHORIZONTALEXTENT, newWidth, 0); - } else { - if (newWidth < width) return; - setScrollWidth (); - } -} - -/** - * Selects the items at the given zero-relative indices in the receiver. - * The current selection is cleared before the new items are selected. - * <p> - * Indices that are out of range and duplicate indices are ignored. - * If the receiver is single-select and multiple indices are specified, - * then all indices are ignored. - * - * @param indices the indices of the items to select - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the array 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) { - checkWidget (); - if (indices == null) error (SWT.ERROR_NULL_ARGUMENT); - deselectAll (); - int length = indices.length; - if (length == 0 || ((style & SWT.SINGLE) != 0 && length > 1)) return; - select (indices, true); - if ((style & SWT.MULTI) != 0) { - int focusIndex = indices [0]; - if (focusIndex >= 0) setFocusIndex (focusIndex); - } -} - -/** - * Sets the receiver's selection to be the given array of items. - * The current selection is cleared before the new items are selected. - * <p> - * Items that are not in the receiver are ignored. - * If the receiver is single-select and multiple items are specified, - * then all items are ignored. - * - * @param items the array of items - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the array 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[]) - * @see List#setSelection(int[]) - */ -public void setSelection (String [] items) { - checkWidget (); - if (items == null) error (SWT.ERROR_NULL_ARGUMENT); - deselectAll (); - int length = items.length; - if (length == 0 || ((style & SWT.SINGLE) != 0 && length > 1)) return; - int focusIndex = -1; - for (int i=length-1; i>=0; --i) { - String string = items [i]; - int index = 0; - if (string != null) { - int localFocus = -1; - while ((index = indexOf (string, index)) != -1) { - if (localFocus == -1) localFocus = index; - select (index, false); - if ((style & SWT.SINGLE) != 0 && isSelected (index)) { - showSelection (); - return; - } - index++; - } - if (localFocus != -1) focusIndex = localFocus; - } - } - if ((style & SWT.MULTI) != 0) { - if (focusIndex >= 0) setFocusIndex (focusIndex); - } -} - -/** - * 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 selection is first cleared, then the new item is 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 (); - deselectAll (); - select (index, true); - if ((style & SWT.MULTI) != 0) { - if (index >= 0) setFocusIndex (index); - } -} - -/** - * Selects the items in the range specified by the given zero-relative - * indices in the receiver. The range of indices is inclusive. - * The current selection is cleared before the new items are selected. - * <p> - * Indices that are out of range are ignored and no items will be selected - * if start is greater than end. - * If the receiver is single-select and there is more than one item in the - * given range, then all indices are ignored. - * - * @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 List#deselectAll() - * @see List#select(int,int) - */ -public void setSelection (int start, int end) { - checkWidget (); - deselectAll (); - if (end < 0 || start > end || ((style & SWT.SINGLE) != 0 && start != end)) return; - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - if (count == 0 || start >= count) return; - start = Math.max (0, start); - end = Math.min (end, count - 1); - if ((style & SWT.SINGLE) != 0) { - select (start, true); - } else { - select (start, end, true); - setFocusIndex (start); - } -} - -/** - * 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 result = (int)/*64*/OS.SendMessage (handle, OS.LB_SETTOPINDEX, index, 0); - if (result == OS.LB_ERR) { - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - index = Math.min (count - 1, Math.max (0, index)); - OS.SendMessage (handle, OS.LB_SETTOPINDEX, index, 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; - if ((style & SWT.SINGLE) != 0) { - index = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCURSEL, 0, 0); - } else { - int [] indices = new int [1]; - int result = (int)/*64*/OS.SendMessage (handle, OS.LB_GETSELITEMS, 1, indices); - index = indices [0]; - if (result != 1) index = -1; - } - if (index == -1) return; - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - if (count == 0) return; - int height = (int)/*64*/OS.SendMessage (handle, OS.LB_GETITEMHEIGHT, 0, 0); - forceResize (); - RECT rect = new RECT (); - OS.GetClientRect (handle, rect); - int topIndex = (int)/*64*/OS.SendMessage (handle, OS.LB_GETTOPINDEX, 0, 0); - int visibleCount = Math.max (rect.bottom / height, 1); - int bottomIndex = Math.min (topIndex + visibleCount, count) - 1; - if (topIndex <= index && index <= bottomIndex) return; - int newTop = Math.min (Math.max (index - (visibleCount / 2), 0), count - 1); - OS.SendMessage (handle, OS.LB_SETTOPINDEX, newTop, 0); -} - -int widgetStyle () { - int bits = super.widgetStyle () | OS.LBS_NOTIFY | OS.LBS_NOINTEGRALHEIGHT; - if ((style & SWT.SINGLE) != 0) return bits; - if ((style & SWT.MULTI) != 0) { - if ((style & SWT.SIMPLE) != 0) return bits | OS.LBS_MULTIPLESEL; - return bits | OS.LBS_EXTENDEDSEL; - } - return bits; -} - -TCHAR windowClass () { - return ListClass; -} - -int /*long*/ windowProc () { - return ListProc; -} - -LRESULT WM_CHAR (int /*long*/ wParam, int /*long*/ lParam) { - LRESULT result = super.WM_CHAR (wParam, lParam); - if (result != null) return result; - /* - * Feature in Windows. The Windows list box does not implement - * the control key interface for multi-select list boxes, making - * it inaccessible from the keyboard. The fix is to implement - * the key processing. - */ - if (OS.GetKeyState (OS.VK_CONTROL) < 0 && OS.GetKeyState (OS.VK_SHIFT) >= 0) { - int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); - if ((bits & OS.LBS_EXTENDEDSEL) != 0) { - switch ((int)/*64*/wParam) { - case OS.VK_SPACE: { - int index = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCARETINDEX, 0, 0); - int code = (int)/*64*/OS.SendMessage (handle, OS.LB_GETSEL, index, 0); - if (code == OS.LB_ERR) break; - OS.SendMessage (handle, OS.LB_SETSEL, code != 0 ? 0 : 1, index); - OS.SendMessage (handle, OS.LB_SETANCHORINDEX, index, 0); - postEvent (SWT.Selection); - return LRESULT.ZERO; - } - } - } - } - return result; -} - -LRESULT WM_KEYDOWN (int /*long*/ wParam, int /*long*/ lParam) { - LRESULT result = super.WM_KEYDOWN (wParam, lParam); - if (result != null) return result; - /* - * Feature in Windows. The Windows list box does not implement - * the control key interface for multi-select list boxes, making - * it inaccessible from the keyboard. The fix is to implement - * the key processing. - */ - if (OS.GetKeyState (OS.VK_CONTROL) < 0 && OS.GetKeyState (OS.VK_SHIFT) >= 0) { - int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); - if ((bits & OS.LBS_EXTENDEDSEL) != 0) { - int newIndex = -1; - switch ((int)/*64*/wParam) { - case OS.VK_SPACE: { - /* - * Ensure that the window proc does not process VK_SPACE - * so that it can be handled in WM_CHAR. This allows the - * application to cancel an operation that is normally - * performed in WM_KEYDOWN from WM_CHAR. - */ - return LRESULT.ZERO; - } - case OS.VK_UP: - case OS.VK_DOWN: { - int oldIndex = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCARETINDEX, 0, 0); - newIndex = Math.max (0, oldIndex + (((int)/*64*/wParam) == OS.VK_UP ? -1 : 1)); - break; - } - case OS.VK_PRIOR: { - int topIndex = (int)/*64*/OS.SendMessage (handle, OS.LB_GETTOPINDEX, 0, 0); - int oldIndex = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCARETINDEX, 0, 0); - if (oldIndex != topIndex) { - newIndex = topIndex; - } else { - forceResize (); - RECT rect = new RECT (); - OS.GetClientRect (handle, rect); - int itemHeight = (int)/*64*/OS.SendMessage (handle, OS.LB_GETITEMHEIGHT, 0, 0); - int pageSize = Math.max (2, (rect.bottom / itemHeight)); - newIndex = Math.max (0, topIndex - (pageSize - 1)); - } - break; - } - case OS.VK_NEXT: { - int topIndex = (int)/*64*/OS.SendMessage (handle, OS.LB_GETTOPINDEX, 0, 0); - int oldIndex = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCARETINDEX, 0, 0); - forceResize (); - RECT rect = new RECT (); - OS.GetClientRect (handle, rect); - int itemHeight = (int)/*64*/OS.SendMessage (handle, OS.LB_GETITEMHEIGHT, 0, 0); - int pageSize = Math.max (2, (rect.bottom / itemHeight)); - int bottomIndex = topIndex + pageSize - 1; - if (oldIndex != bottomIndex) { - newIndex = bottomIndex; - } else { - newIndex = bottomIndex + pageSize - 1; - } - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - if (count != OS.LB_ERR) newIndex = Math.min (count - 1, newIndex); - break; - } - case OS.VK_HOME: { - newIndex = 0; - break; - } - case OS.VK_END: { - int count = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); - if (count == OS.LB_ERR) break; - newIndex = count - 1; - break; - } - } - if (newIndex != -1) { - /* - * Feature in Windows. When the user changes focus using - * the keyboard, the focus indicator does not draw. The - * fix is to update the UI state for the control whenever - * the focus indicator changes as a result of something - * the user types. - */ - int uiState = (int)/*64*/OS.SendMessage (handle, OS.WM_QUERYUISTATE, 0, 0); - if ((uiState & OS.UISF_HIDEFOCUS) != 0) { - OS.SendMessage (handle, OS.WM_CHANGEUISTATE, OS.UIS_INITIALIZE, 0); - /* - * Bug in Windows. When the WM_CHANGEUISTATE is used - * to update the UI state for a list that has been - * selected using Shift+Arrow, the focus indicator - * has pixel corruption. The fix is to redraw the - * control. - */ - RECT itemRect = new RECT (); - int oldIndex = (int)/*64*/OS.SendMessage (handle, OS.LB_GETCARETINDEX, 0, 0); - OS.SendMessage (handle, OS.LB_GETITEMRECT, oldIndex, itemRect); - OS.InvalidateRect (handle, itemRect, true); - } - OS.SendMessage (handle, OS.LB_SETCARETINDEX, newIndex, 0); - return LRESULT.ZERO; - } - } - } - return result; -} - -LRESULT WM_SETREDRAW (int /*long*/ wParam, int /*long*/ lParam) { - LRESULT result = super.WM_SETREDRAW (wParam, lParam); - if (result != null) return result; - /* - * Bug in Windows. When WM_SETREDRAW is used to turn off - * redraw for a list, table or tree, the background of the - * control is drawn. The fix is to call DefWindowProc(), - * which stops all graphics output to the control. - */ - OS.DefWindowProc (handle, OS.WM_SETREDRAW, wParam, lParam); - return result; -} - -LRESULT WM_SIZE (int /*long*/ wParam, int /*long*/ lParam) { - /* - * Bug in Windows. If the top index is changed while the - * list is being resized, Windows does not redraw properly - * when their is white space at the bottom of the control. - * The fix is to detect when the top index has changed and - * redraw the control. - * - * Bug in Windows. If the receiver is scrolled horizontally - * and is resized, the list does not redraw properly. The fix - * is to redraw the control when the horizontal scroll bar is - * not at the beginning. - */ - int oldIndex = (int)/*64*/OS.SendMessage (handle, OS.LB_GETTOPINDEX, 0, 0); - LRESULT result = super.WM_SIZE (wParam, lParam); - if (!isDisposed ()) { - SCROLLINFO info = new SCROLLINFO (); - info.cbSize = SCROLLINFO.sizeof; - info.fMask = OS.SIF_POS; - if (OS.GetScrollInfo (handle, OS.SB_HORZ, info)) { - if (info.nPos != 0) OS.InvalidateRect (handle, null, true); - } - int newIndex = (int)/*64*/OS.SendMessage (handle, OS.LB_GETTOPINDEX, 0, 0); - if (oldIndex != newIndex) OS.InvalidateRect (handle, null, true); - } - return result; -} - -LRESULT wmCommandChild (int /*long*/ wParam, int /*long*/ lParam) { - int code = OS.HIWORD (wParam); - switch (code) { - case OS.LBN_SELCHANGE: - postEvent (SWT.Selection); - break; - case OS.LBN_DBLCLK: - postEvent (SWT.DefaultSelection); - break; - } - return super.wmCommandChild (wParam, lParam); -} - - - -} |