bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/widgets/TableItem.java

/*******************************************************************************
 * Copyright (c) 2000, 2007 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.wpf.*;
import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;

/**
 * Instances of this class represent a selectable user interface object
 * that represents an item in a table.
 * <dl>
 * <dt><b>Styles:</b></dt>
 * <dd>(none)</dd>
 * <dt><b>Events:</b></dt>
 * <dd>(none)</dd>
 * </dl>
 * <p>
 * IMPORTANT: This class is <em>not</em> intended to be subclassed.
 * </p>
 */

public class TableItem extends Item {
	Table parent;
	Image[] images;
	int stringList, imageList, foregroundList, backgroundList, fontList, checkState;
	boolean checked, grayed, cached, ignoreNotify;
//	int imageIndent, background = -1, foreground = -1, font = -1;
//	int [] cellBackground, cellForeground, cellFont;

/**
 * Constructs a new instance of this class given its parent
 * (which must be a <code>Table</code>) and a style value
 * describing its behavior and appearance. The item is added
 * to the end of the items maintained by its parent.
 * <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
 * @see Widget#checkSubclass
 * @see Widget#getStyle
 */
public TableItem (Table parent, int style) {
	this (parent, style, -1);
}

/**
 * Constructs a new instance of this class given its parent
 * (which must be a <code>Table</code>), a style value
 * describing its behavior and appearance, and the index
 * at which to place it in the items maintained by its parent.
 * <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
 * @param index the zero-relative index to store the receiver in its parent
 *
 * @exception IllegalArgumentException <ul>
 *    <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
 *    <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</li>
 * </ul>
 * @exception SWTException <ul>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
 *    <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
 * </ul>
 *
 * @see SWT
 * @see Widget#checkSubclass
 * @see Widget#getStyle
 */
public TableItem (Table parent, int style, int index) {
	this (parent, style, index, 0);
}

TableItem (Table parent, int style, int index, int handle) {
	super (parent, style);
	this.parent = parent;
	this.handle = handle;
	if (handle == 0) {
		parent.createItem (this, index);
	} else {
		createWidget ();
	}
}

double computeWidth (int columnIndex) {
	int rowPresenterType = OS.GridViewRowPresenter_typeid ();
	int rowPresenter = findRowPresenter (handle, rowPresenterType);
	double width = 0;
	if (rowPresenter != 0) {
		int contentPresenter = OS.VisualTreeHelper_GetChild (rowPresenter, columnIndex);
		/*
		 * Bug in WPF. The DesiredSize property of the content presenter is always 0
		 * for all columns except the first column. The work around is to Measure the
		 * content presenter before asking for its DesiredSize. Calling Measure on the 
		 * first column does not work because it will set DesiredSize to be equal to the 
		 * available size you pass into the Measure function. 
		 */
		if (columnIndex != 0) { 
			int availSize = OS.gcnew_Size (0x7FFFFFFF,0x7FFFFFFF);
			OS.UIElement_Measure (contentPresenter, availSize);
			OS.GCHandle_Free (availSize);
		}
		int size = OS.UIElement_DesiredSize (contentPresenter);
		width = OS.Size_Width (size);
		OS.GCHandle_Free (size);
		OS.GCHandle_Free (contentPresenter);
		OS.GCHandle_Free (rowPresenter);
	}
	OS.GCHandle_Free (rowPresenterType);
	return width;
}

protected void checkSubclass () {
	if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS);
}

void columnAdded (int index) {
	int newLength = parent.columnCount + 1;
	if (images != null) {
		Image [] temp = new Image [newLength];
		System.arraycopy (images, 0, temp, 0, index);
		System.arraycopy (images, index, temp, index + 1, parent.columnCount - index);
		images = temp;
	}
	OS.ArrayList_Insert (stringList, index, 0);
	OS.ArrayList_Insert (imageList, index, 0);
}

void columnRemoved (int index) {
	if (images != null) {
		Image [] temp = new Image [parent.columnCount];
		System.arraycopy (images, 0, temp, 0, index);
		System.arraycopy (images, index + 1, temp, index, parent.columnCount - index);
		images = temp;
	}
	OS.ArrayList_RemoveAt (stringList, index);
	OS.ArrayList_RemoveAt (imageList, index);
}

void createHandle () {
	if (handle == 0) {
		handle = OS.gcnew_ListViewItem ();
		if (handle == 0) error (SWT.ERROR_NO_HANDLES);
		int row = OS.gcnew_SWTRow (parent.jniRef, handle);
		OS.ContentControl_Content (handle, row);
		OS.GCHandle_Free (row);
	}
	OS.Control_HorizontalContentAlignment (handle, OS.HorizontalAlignment_Stretch);
	OS.Control_VerticalContentAlignment (handle, OS.VerticalAlignment_Stretch);
	updateCheckState (false);
}

void clear () {
	if (imageList != 0) OS.GCHandle_Free (imageList);
	imageList = 0;
	images = null;
	if (stringList != 0) OS.GCHandle_Free (stringList);
	stringList = 0;
	checked = grayed = false;
	updateCheckState (false);
//	background = foreground = font = -1;
//	cellBackground = cellForeground = cellFont = null;
	if ((parent.style & SWT.VIRTUAL) != 0) cached = false;
	if (ignoreNotify) return;
	int row = OS.ContentControl_Content (handle);
	OS.SWTRow_NotifyPropertyChanged (row, Table.TEXT_NOTIFY);
	OS.SWTRow_NotifyPropertyChanged (row, Table.IMAGE_NOTIFY);
	OS.GCHandle_Free (row);
}

void deregister () {
	display.removeWidget (handle);
}

void destroyWidget () {
	parent.destroyItem (this);
	releaseHandle ();
}

int findRowPresenter (int current, int rowPresenterType) {
	int type = OS.Object_GetType (current);
	boolean found = OS.Object_Equals (rowPresenterType, type);
	OS.GCHandle_Free (type);
	if (found) return current;
	int childCount = OS.VisualTreeHelper_GetChildrenCount (current);
	for (int i = 0; i < childCount; i++) {
		int child = OS.VisualTreeHelper_GetChild (current, i);
		int result = findRowPresenter (child, rowPresenterType);
		if (child != result) OS.GCHandle_Free (child);
		if (result != 0) return result;
	}
	return 0;
}

int findPart (int column, String partName) {
	if (!OS.FrameworkElement_IsLoaded (handle)) updateLayout (handle);
	if (!OS.FrameworkElement_IsLoaded (handle)) return 0;
	int rowPresenterType = OS.GridViewRowPresenter_typeid ();
	int rowPresenter = findRowPresenter (handle, rowPresenterType);
	int contentPresenter = OS.VisualTreeHelper_GetChild (rowPresenter, column);
	int columns = OS.GridView_Columns (parent.gridViewHandle);
	int columnHandle = OS.GridViewColumnCollection_default (columns, column);
	int cellTemplate = OS.GridViewColumn_CellTemplate (columnHandle);
	int name = createDotNetString (partName, false);
	int result = OS.FrameworkTemplate_FindName (cellTemplate, name, contentPresenter);
	OS.GCHandle_Free (rowPresenterType);
	OS.GCHandle_Free (rowPresenter);
	OS.GCHandle_Free (contentPresenter);
	OS.GCHandle_Free (columns);
	OS.GCHandle_Free (columnHandle);
	OS.GCHandle_Free (cellTemplate);
	OS.GCHandle_Free (name);
	return result;
}

/**
 * Returns the receiver's background color.
 *
 * @return the background color
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 * 
 * @since 2.0
 */
public Color getBackground () {
	checkWidget ();
	if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
	//TODO
	return parent.getBackground();
//	if (background == -1) return parent.getBackground ();
//	return Color.win32_new (display, background);
}

/**
 * Returns the background color at the given column index in the receiver.
 *
 * @param index the column index
 * @return the background color
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 * 
 * @since 3.0
 */
public Color getBackground (int index) {
	checkWidget ();
	if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
	int count = Math.max (1, parent.getColumnCount ());
	if (0 > index || index > count - 1) return getBackground ();
	//TODO
	return parent.getBackground();
//	int pixel = cellBackground != null ? cellBackground [index] : -1;
//	return pixel == -1 ? getBackground () : Color.win32_new (display, pixel);
}

/**
 * Returns a rectangle describing the receiver's size and location
 * relative to its parent.
 *
 * @return the receiver's bounding rectangle
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 * 
 * @since 3.2
 */
public Rectangle getBounds () {
	checkWidget();
	if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
	int parentHandle = parent.topHandle (); 
	int point = OS.gcnew_Point (0, 0);
	if (point == 0) error (SWT.ERROR_NO_HANDLES);
	int location = OS.UIElement_TranslatePoint (handle, point, parentHandle);
	int x = (int) OS.Point_X (location);
	int y = (int) OS.Point_Y (location);
	OS.GCHandle_Free (point);
	OS.GCHandle_Free (location);
	int width = (int) OS.FrameworkElement_ActualWidth (handle);
	int height = (int) OS.FrameworkElement_ActualHeight (handle);
	return new Rectangle (x, y, width, height);
}

/**
 * Returns a rectangle describing the receiver's size and location
 * relative to its parent at a column in the table.
 *
 * @param index the index that specifies the column
 * @return the receiver's bounding column rectangle
 *
 * @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 Rectangle getBounds (int index) {
	checkWidget();
	if (index != 0 && !parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
	if (!(0 <= index && index < parent.columnCount)) return new Rectangle (0, 0, 0, 0);
	int rowPresenterType = OS.GridViewRowPresenter_typeid ();
	int rowPresenter = findRowPresenter (handle, rowPresenterType);
	int contentPresenter = OS.VisualTreeHelper_GetChild (rowPresenter, index);
	int point = OS.gcnew_Point (0, 0);
	if (point == 0) error (SWT.ERROR_NO_HANDLES);
	int parentHandle = parent.topHandle ();
	int location = OS.UIElement_TranslatePoint (contentPresenter, point, parentHandle);
	int x = (int) OS.Point_X (location);
	int y = (int) OS.Point_Y (location);
	int width = (int) OS.FrameworkElement_ActualWidth (contentPresenter);
	int height = (int) OS.FrameworkElement_ActualHeight (handle);
	OS.GCHandle_Free (rowPresenter);
	OS.GCHandle_Free (rowPresenterType);
	OS.GCHandle_Free (point);
	OS.GCHandle_Free (location);
	OS.GCHandle_Free (contentPresenter);
	return new Rectangle (x, y, width, height);
}

/**
 * Returns <code>true</code> if the receiver is checked,
 * and false otherwise.  When the parent does not have
 * the <code>CHECK</code> style, return false.
 *
 * @return the checked state of the checkbox
 *
 * @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 getChecked () {
	checkWidget();
	if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
	if ((parent.style & SWT.CHECK) == 0) return false;
	return checked;
}

/**
 * Returns the font that the receiver will use to paint textual information for this item.
 *
 * @return the receiver's font
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 *
 * @since 3.0
 */
public Font getFont () {
	checkWidget ();
	if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
	//TODO
	return parent.getFont ();
//	return font == -1 ? parent.getFont () : Font.win32_new (display, font);
}

/**
 * Returns the font that the receiver will use to paint textual information
 * for the specified cell in this item.
 *
 * @param index the column index
 * @return the receiver's font
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 *
 * @since 3.0
 */
public Font getFont (int index) {
	checkWidget ();
	if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
	int count = Math.max (1, parent.getColumnCount ());
	if (0 > index || index > count -1) return getFont ();
	//TODO
	return parent.getFont ();
//	int hFont = (cellFont != null) ? cellFont [index] : font;
//	return hFont == -1 ? getFont () : Font.win32_new (display, hFont);
}

/**
 * Returns the foreground color that the receiver will use to draw.
 *
 * @return the receiver's foreground color
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 * 
 * @since 2.0
 */
public Color getForeground () {
	checkWidget ();
	if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
	//TODO
	return parent.getForeground ();
//	if (foreground == -1) return parent.getForeground ();
//	return Color.win32_new (display, foreground);
}

/**
 * 
 * Returns the foreground color at the given column index in the receiver.
 *
 * @param index the column index
 * @return the foreground color
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 * 
 * @since 3.0
 */
public Color getForeground (int index) {
	checkWidget ();
	if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
	int count = Math.max (1, parent.getColumnCount ());
	if (0 > index || index > count -1) return getForeground ();
	//TODO
	return parent.getForeground ();
//	int pixel = cellForeground != null ? cellForeground [index] : -1;
//	return pixel == -1 ? getForeground () : Color.win32_new (display, pixel);
}

/**
 * Returns <code>true</code> if the receiver is grayed,
 * and false otherwise. When the parent does not have
 * the <code>CHECK</code> style, return false.
 *
 * @return the grayed state of the checkbox
 *
 * @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 getGrayed () {
	checkWidget();
	if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
	if ((parent.style & SWT.CHECK) == 0) return false;
	return grayed;
}

public Image getImage () {
	checkWidget();
	if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
	return getImage (0);
}

/**
 * Returns the image stored at the given column index in the receiver,
 * or null if the image has not been set or if the column does not exist.
 *
 * @param index the column index
 * @return the image stored at the given column index 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 Image getImage (int index) {
	checkWidget();
	if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
	if (images != null) {
		if (0 <= index && index < images.length) return images [index];
	}
	return null;
}

/**
 * Returns a rectangle describing the size and location
 * relative to its parent of an image at a column in the
 * table.  An empty rectangle is returned if index exceeds
 * the index of the table's last column.
 *
 * @param index the index that specifies the column
 * @return the receiver's bounding image rectangle
 *
 * @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 Rectangle getImageBounds (int index) {
	checkWidget();
	if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
	if (index != 0 && !(0 <= index && index < parent.columnCount)) return new Rectangle (0, 0, 0, 0);
	int parentHandle = parent.topHandle ();
	int part = findPart (index, Table.IMAGE_PART_NAME);
	int point = OS.gcnew_Point (0, 0);
	if (point == 0) error (SWT.ERROR_NO_HANDLES);
	int location = OS.UIElement_TranslatePoint (part, point, parentHandle);
	int x = (int) OS.Point_X (location);
	int y = (int) OS.Point_Y (location);
	OS.GCHandle_Free (point);
	OS.GCHandle_Free (location);
	int width = (int) OS.FrameworkElement_ActualWidth (part);
	int height = (int) OS.FrameworkElement_ActualHeight (part);
	OS.GCHandle_Free (part);
	return new Rectangle (x, y, width, height);
}

/**
 * Gets the image indent.
 *
 * @return the indent
 *
 * @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 getImageIndent () {
	checkWidget();
	if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
	//TODO
	return 0;
//	return imageIndent;
}

String getNameText () {
	if ((parent.style & SWT.VIRTUAL) != 0) {
		if (!cached) return "*virtual*"; //$NON-NLS-1$
	}
	return super.getNameText ();
}

/**
 * Returns the receiver's parent, which must be a <code>Table</code>.
 *
 * @return the receiver's parent
 *
 * @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 Table getParent () {
	checkWidget();
	return parent;
}

/**
 * Returns a rectangle describing the size and location
 * relative to its parent of the text at a column in the
 * table.  An empty rectangle is returned if index exceeds
 * the index of the table's last column.
 *
 * @param index the index that specifies the column
 * @return the receiver's bounding text rectangle
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 * 
 * @since 3.3
 */
public Rectangle getTextBounds (int index) {
	checkWidget();
	if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
	if (index != 0 && !(0 <= index && index < parent.columnCount)) return new Rectangle (0, 0, 0, 0);
	int parentHandle = parent.topHandle ();
	int part = findPart (index, Table.TEXT_PART_NAME);
	int point = OS.gcnew_Point (0, 0);
	if (point == 0) error (SWT.ERROR_NO_HANDLES);
	int location = OS.UIElement_TranslatePoint (part, point, parentHandle);
	int x = (int) OS.Point_X (location);
	int y = (int) OS.Point_Y (location);
	OS.GCHandle_Free (point);
	OS.GCHandle_Free (location);
	int width = (int) OS.FrameworkElement_ActualWidth (part);
	int height = (int) OS.FrameworkElement_ActualHeight (part);
	OS.GCHandle_Free (part);
	return new Rectangle (x, y, width, height);
}

public String getText () {
	checkWidget();
	if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
	return getText (0);
}

/**
 * Returns the text stored at the given column index in the receiver,
 * or empty string if the text has not been set.
 *
 * @param index the column index
 * @return the text stored at the given column index 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 String getText (int index) {
	checkWidget();
	if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
	if (stringList != 0) {
		if (0 <= index && index < OS.ArrayList_Count (stringList)) {
			int ptr = OS.ArrayList_default (stringList, index);
			String result = createJavaString (ptr);
			OS.GCHandle_Free (ptr);
			return result;
		}
	}
	return "";
}

Control getWidgetControl () {
	return parent;
}

//void HandlePreviewGotKeyboardFocus (int sender, int e) {
////	if (!checkEvent (e)) return;
////	OS.RoutedEventArgs_Handled(e, true);
//}
//
//void HandleLostKeyboardFocus (int sender, int e) {
////	if (!checkEvent (e)) return;
////	OS.RoutedEventArgs_Handled(e, true);
//}
//
//void hookEvents () {
//	int handler = OS.gcnew_KeyboardFocusChangedEventHandler (jniRef, "HandlePreviewGotKeyboardFocus");
//	OS.UIElement_PreviewGotKeyboardFocus (handle, handler);
//	OS.GCHandle_Free (handler);
//	handler = OS.gcnew_KeyboardFocusChangedEventHandler (jniRef, "HandleLostKeyboardFocus");
//	OS.UIElement_LostKeyboardFocus (handle, handler);
//	OS.GCHandle_Free (handler);
//}

void register () {
	display.addWidget (handle, this);
}

void releaseHandle () {
	super.releaseHandle ();
	if (handle != 0) OS.GCHandle_Free (handle);
	handle = 0;
	parent = null;
}

void releaseWidget () {
	super.releaseWidget ();
	if (imageList != 0) OS.GCHandle_Free (imageList);
	imageList = 0;
	if (stringList != 0) OS.GCHandle_Free (stringList);
	stringList = 0;
	if (checkState != 0) OS.GCHandle_Free (checkState);
	checkState = 0;
}

/**
 * Sets the receiver's background color to the color specified
 * by the argument, or to the default system color for the item
 * if the argument is null.
 *
 * @param color the new color (or null)
 *
 * @exception IllegalArgumentException <ul>
 *    <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</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>
 * 
 * @since 2.0
 */
public void setBackground (Color color) {
	checkWidget ();
	if (color != null && color.isDisposed ()) {
		SWT.error (SWT.ERROR_INVALID_ARGUMENT);
	}
//	int pixel = -1;
	//TODO
//	if (color != null) {
//		parent.setCustomDraw (true);
//		pixel = color.handle;
//	}
//	if (background == pixel) return;
//	background = pixel;
	if ((parent.style & SWT.VIRTUAL) != 0) cached = true;
//	redraw ();
}

/**
 * Sets the background color at the given column index in the receiver 
 * to the color specified by the argument, or to the default system color for the item
 * if the argument is null.
 *
 * @param index the column index
 * @param color the new color (or null)
 *
 * @exception IllegalArgumentException <ul>
 *    <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</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>
 * 
 * @since 3.0
 */
public void setBackground (int index, Color color) {
	checkWidget ();
	if (color != null && color.isDisposed ()) {
		SWT.error (SWT.ERROR_INVALID_ARGUMENT);
	}
	int count = Math.max (1, parent.getColumnCount ());
	if (0 > index || index > count - 1) return;
//	int pixel = -1;
	//TODO
//	if (color != null) {
//		parent.setCustomDraw (true);
//		pixel = color.handle;
//	}
//	if (cellBackground == null) {
//		cellBackground = new int [count];
//		for (int i = 0; i < count; i++) {
//			cellBackground [i] = -1;
//		}
//	}
//	if (cellBackground [index] == pixel) return;
//	cellBackground [index] = pixel;
	if ((parent.style & SWT.VIRTUAL) != 0) cached = true;
//	redraw (index, true, true);
}

/**
 * Sets the checked state of the checkbox for this item.  This state change 
 * only applies if the Table was created with the SWT.CHECK style.
 *
 * @param checked the new checked state of the checkbox
 *
 * @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 setChecked (boolean checked) {
	checkWidget();
	if ((parent.style & SWT.CHECK) == 0) return;
	if (this.checked == checked) return;
	this.checked = checked;
	if ((parent.style & SWT.VIRTUAL) != 0) cached = true;
	updateCheckState (true);
}

/**
 * Sets the font that the receiver will use to paint textual information
 * for this item to the font specified by the argument, or to the default font
 * for that kind of control if the argument is null.
 *
 * @param font the new font (or null)
 *
 * @exception IllegalArgumentException <ul>
 *    <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</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>
 * 
 * @since 3.0
 */
public void setFont (Font font){
	checkWidget ();
	if (font != null && font.isDisposed ()) {
		SWT.error (SWT.ERROR_INVALID_ARGUMENT);
	}
//	int hFont = -1;
//	if (font != null) {
//		parent.setCustomDraw (true);
//		hFont = font.handle;
//	}
//	if (this.font == hFont) return;
//	this.font = hFont;
	if ((parent.style & SWT.VIRTUAL) != 0) cached = true;
//	/*
//	* Bug in Windows.  Despite the fact that every item in the
//	* table always has LPSTR_TEXTCALLBACK, Windows caches the
//	* bounds for the selected items.  This means that 
//	* when you change the string to be something else, Windows
//	* correctly asks you for the new string but when the item
//	* is selected, the selection draws using the bounds of the
//	* previous item.  The fix is to reset LPSTR_TEXTCALLBACK
//	* even though it has not changed, causing Windows to flush
//	* cached bounds.
//	*/
//	if ((parent.style & SWT.VIRTUAL) == 0 && cached) {
//		int itemIndex = parent.indexOf (this);
//		if (itemIndex != -1) {
//			int hwnd = parent.handle;
//			LVITEM lvItem = new LVITEM ();
//			lvItem.mask = OS.LVIF_TEXT;
//			lvItem.iItem = itemIndex;
//			lvItem.pszText = OS.LPSTR_TEXTCALLBACK;
//			OS.SendMessage (hwnd, OS.LVM_SETITEM, 0, lvItem);
//			cached = false;
//		}
//	}
//	parent.setScrollWidth (this, false);
//	redraw ();
}

/**
 * Sets the font that the receiver will use to paint textual information
 * for the specified cell in this item to the font specified by the 
 * argument, or to the default font for that kind of control if the 
 * argument is null.
 *
 * @param index the column index
 * @param font the new font (or null)
 *
 * @exception IllegalArgumentException <ul>
 *    <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</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>
 * 
 * @since 3.0
 */
public void setFont (int index, Font font) {
	checkWidget ();
	if (font != null && font.isDisposed ()) {
		SWT.error (SWT.ERROR_INVALID_ARGUMENT);
	}
	int count = Math.max (1, parent.getColumnCount ());
	if (0 > index || index > count - 1) return;
	//TODO
//	int hFont = -1;
//	if (font != null) {
//		parent.setCustomDraw (true);
//		hFont = font.handle;
//	}
//	if (cellFont == null) {
//		cellFont = new int [count];
//		for (int i = 0; i < count; i++) {
//			cellFont [i] = -1;
//		}
//	}
//	if (cellFont [index] == hFont) return;
//	cellFont [index] = hFont;
	if ((parent.style & SWT.VIRTUAL) != 0) cached = true;
//	if (index == 0) {
//		/*
//		* Bug in Windows.  Despite the fact that every item in the
//		* table always has LPSTR_TEXTCALLBACK, Windows caches the
//		* bounds for the selected items.  This means that 
//		* when you change the string to be something else, Windows
//		* correctly asks you for the new string but when the item
//		* is selected, the selection draws using the bounds of the
//		* previous item.  The fix is to reset LPSTR_TEXTCALLBACK
//		* even though it has not changed, causing Windows to flush
//		* cached bounds.
//		*/
//		if ((parent.style & SWT.VIRTUAL) == 0 && cached) {
//			int itemIndex = parent.indexOf (this);
//			if (itemIndex != -1) {
//				int hwnd = parent.handle;
//				LVITEM lvItem = new LVITEM ();
//				lvItem.mask = OS.LVIF_TEXT;
//				lvItem.iItem = itemIndex;
//				lvItem.pszText = OS.LPSTR_TEXTCALLBACK;
//				OS.SendMessage (hwnd, OS.LVM_SETITEM, 0, lvItem);
//				cached = false;
//			}
//		}
//		parent.setScrollWidth (this, false);
//	}	
//	redraw (index, true, false);
}

/**
 * Sets the receiver's foreground color to the color specified
 * by the argument, or to the default system color for the item
 * if the argument is null.
 *
 * @param color the new color (or null)
 *
 * @exception IllegalArgumentException <ul>
 *    <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</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>
 * 
 * @since 2.0
 */
public void setForeground (Color color){
	checkWidget ();
	if (color != null && color.isDisposed ()) {
		SWT.error (SWT.ERROR_INVALID_ARGUMENT);
	}
	//TODO
//	int pixel = -1;
//	if (color != null) {
//		parent.setCustomDraw (true);
//		pixel = color.handle;
//	}
//	if (foreground == pixel) return;
//	foreground = pixel;
	if ((parent.style & SWT.VIRTUAL) != 0) cached = true;
//	redraw ();
}

/**
 * Sets the foreground color at the given column index in the receiver 
 * to the color specified by the argument, or to the default system color for the item
 * if the argument is null.
 *
 * @param index the column index
 * @param color the new color (or null)
 *
 * @exception IllegalArgumentException <ul>
 *    <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</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>
 * 
 * @since 3.0
 */
public void setForeground (int index, Color color){
	checkWidget ();
	if (color != null && color.isDisposed ()) {
		SWT.error (SWT.ERROR_INVALID_ARGUMENT);
	}
	int count = Math.max (1, parent.getColumnCount ());
	if (0 > index || index > count - 1) return;
	//TODO
//	int pixel = -1;
//	if (color != null) {
//		parent.setCustomDraw (true);
//		pixel = color.handle;
//	}
//	if (cellForeground == null) {
//		cellForeground = new int [count];
//		for (int i = 0; i < count; i++) {
//			cellForeground [i] = -1;
//		}
//	}
//	if (cellForeground [index] == pixel) return;
//	cellForeground [index] = pixel;
	if ((parent.style & SWT.VIRTUAL) != 0) cached = true;
//	redraw (index, true, false);
}

/**
 * Sets the grayed state of the checkbox for this item.  This state change 
 * only applies if the Table was created with the SWT.CHECK style.
 *
 * @param grayed the new grayed state of the checkbox; 
 *
 * @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 setGrayed (boolean grayed) {
	checkWidget();
	if ((parent.style & SWT.CHECK) == 0) return;
	if (this.grayed == grayed) return;
	this.grayed = grayed;
	if ((parent.style & SWT.VIRTUAL) != 0) cached = true;
	updateCheckState (true);
}

/**
 * Sets the image for multiple columns in the table. 
 * 
 * @param images the array of new images
 *
 * @exception IllegalArgumentException <ul>
 *    <li>ERROR_NULL_ARGUMENT - if the array of images is null</li>
 *    <li>ERROR_INVALID_ARGUMENT - if one of the images has been disposed</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 setImage (Image [] images) {
	checkWidget();
	if (images == null) error (SWT.ERROR_NULL_ARGUMENT);
	for (int i=0; i<images.length; i++) {
		setImage (i, images [i]);
	}
}

/**
 * Sets the receiver's image at a column.
 *
 * @param index the column index
 * @param image the new image
 *
 * @exception IllegalArgumentException <ul>
 *    <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</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 setImage (int index, Image image) {
	checkWidget();
	if (image != null && image.isDisposed ()) {
		error(SWT.ERROR_INVALID_ARGUMENT);
	}
	int count = Math.max (1, parent.getColumnCount ());
	if (0 > index || index > count - 1) return;
	if (images == null) {
		images = new Image [count];
	}
	images [index] = image;
	if ((parent.style & SWT.VIRTUAL) != 0) cached = true;
	if (imageList == 0) {
		imageList = OS.gcnew_ArrayList (count);
		for (int i = 0; i < count; i++) {
			OS.ArrayList_Insert (imageList, i, 0);
		}
	}
	int imageHandle = image != null ? image.handle : 0;
	OS.ArrayList_default (imageList, index, imageHandle);
	if (ignoreNotify) return;
	int row = OS.ContentControl_Content (handle);
	OS.SWTRow_NotifyPropertyChanged (row, Table.IMAGE_NOTIFY);
	OS.GCHandle_Free (row);
}

public void setImage (Image image) {
	checkWidget ();
	setImage (0, image);
}

/**
 * Sets the indent of the first column's image, expressed in terms of the image's width.
 *
 * @param indent the new indent
 *
 * </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>
 * 
 * @deprecated this functionality is not supported on most platforms
 */
public void setImageIndent (int indent) {
	checkWidget();
}

/**
 * Sets the text for multiple columns in the table. 
 * 
 * @param strings the array of new strings
 *
 * @exception IllegalArgumentException <ul>
 *    <li>ERROR_NULL_ARGUMENT - if the text is null</li>
 * </ul>
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 */
public void setText (String [] strings) {
	checkWidget();
	if (strings == null) error (SWT.ERROR_NULL_ARGUMENT);
	for (int i=0; i<strings.length; i++) {
		String string = strings [i];
		if (string != null) setText (i, string);
	}
}

/**
 * Sets the receiver's text at a column
 *
 * @param index the column index
 * @param string the new text
 *
 * @exception IllegalArgumentException <ul>
 *    <li>ERROR_NULL_ARGUMENT - if the text is null</li>
 * </ul>
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 */
public void setText (int index, String string) {
	checkWidget();
	if (string == null) error (SWT.ERROR_NULL_ARGUMENT);
	int count = Math.max(1, parent.getColumnCount ());
	if (0 > index || index > count - 1) return;
	if ((parent.style & SWT.VIRTUAL) != 0) cached = true;
	if (stringList == 0) {
		stringList = OS.gcnew_ArrayList (count);
		for (int i = 0; i < count; i++) {
			OS.ArrayList_Insert (stringList, i, 0);
		}
	}
	int str = createDotNetString (string, false);
	OS.ArrayList_default (stringList, index, str);
	OS.GCHandle_Free (str);
	if (ignoreNotify) return;
	int row = OS.ContentControl_Content (handle);
	OS.SWTRow_NotifyPropertyChanged (row, Table.TEXT_NOTIFY);
	OS.GCHandle_Free (row);
}

public void setText (String string) {
	checkWidget();
	setText (0, string);
}

void updateCheckState (boolean notify) {
	if ((parent.style & SWT.CHECK) == 0) return;
	if (checkState != 0) OS.GCHandle_Free (checkState);
	if (checked) {
		checkState = grayed ? OS.gcnew_IntPtr (2) : OS.gcnew_IntPtr (1);
	} else {
		checkState = OS.gcnew_IntPtr (0);
	}
	if (notify) {
		int row = OS.ContentControl_Content (handle);
		OS.SWTRow_NotifyPropertyChanged (row, Table.CHECK_NOTIFY);
		OS.GCHandle_Free (row);
	}
}

}