/*******************************************************************************
* Copyright (c) 2006, 2008 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
* Tom Schindl <tom.schindl@bestsolution.at> - initial API and implementation
* bugfix in: 195137, 198089
* Fredy Dobler <fredy@dobler.net> - bug 159600
* Brock Janiczak <brockj@tpg.com.au> - bug 182443
*******************************************************************************/
package org.eclipse.jface.viewers;
//import org.eclipse.jface.util.Policy;
//import org.eclipse.jface.window.DefaultToolTip;
//import org.eclipse.jface.window.ToolTip;
//import org.eclipse.swt.graphics.Image;
//import org.eclipse.swt.graphics.Point;
//import org.eclipse.swt.widgets.Composite;
//import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.internal.widgets.ICellToolTipProvider;
/**
* The ColumnViewerTooltipSupport is the class that provides tool tips for
* ColumnViewers.
*
* @since 1.3
*
*/
// RAP [rh] RAP provides tooltip support for the table and tree widgets
// In addition RAP cannot reuse the DefaultToolTip and ToolTip as these
// classes make heavy use of mouse events
public class ColumnViewerToolTipSupport
// extends DefaultToolTip
{
// RAP [rh] unused code
// private ColumnViewer viewer;
//
// private static final String VIEWER_CELL_KEY = Policy.JFACE
// + "_VIEWER_CELL_KEY"; //$NON-NLS-1$
//
// private static final int DEFAULT_SHIFT_X = 10;
//
// private static final int DEFAULT_SHIFT_Y = 0;
// RAP [rh] unnecessary code
// /**
// * Enable ToolTip support for the viewer by creating an instance from this
// * class. To get all necessary informations this support class consults the
// * {@link CellLabelProvider}.
// *
// * @param viewer
// * the viewer the support is attached to
// * @param style
// * style passed to control tool tip behavior
// *
// * @param manualActivation
// * <code>true</code> if the activation is done manually using
// * {@link #show(Point)}
// */
// protected ColumnViewerToolTipSupport(ColumnViewer viewer, int style,
// boolean manualActivation) {
// super(viewer.getControl(), style, manualActivation);
// this.viewer = viewer;
// }
// RAP [rh] RAP uses custom tooltips
/**
* Enable ToolTip support for the viewer by creating an instance from this
* class. To get all necessary informations this support class consults the
* {@link CellLabelProvider}.
*
* @param viewer
* the viewer the support is attached to
*/
public static void enableFor(ColumnViewer viewer) {
// new ColumnViewerToolTipSupport(viewer, dis, false);
viewer.getControl().setData( ICellToolTipProvider.ENABLE_CELL_TOOLTIP,
Boolean.TRUE );
}
// RAP [rh] ToolTip style not supported
// /**
// * Enable ToolTip support for the viewer by creating an instance from this
// * class. To get all necessary informations this support class consults the
// * {@link CellLabelProvider}.
// *
// * @param viewer
// * the viewer the support is attached to
// * @param style
// * style passed to control tool tip behavior
// *
// * @see ToolTip#RECREATE
// * @see ToolTip#NO_RECREATE
// */
// public static void enableFor(ColumnViewer viewer, int style) {
// new ColumnViewerToolTipSupport(viewer, style, false);
// }
// RAP [rh] unused code
// protected Object getToolTipArea(Event event) {
// return viewer.getCell(new Point(event.x, event.y));
// }
//
// /**
// * Instead of overwriting this method subclasses should overwrite
// * {@link #createViewerToolTipContentArea(Event, ViewerCell, Composite)}
// */
// protected Composite createToolTipContentArea(Event event, Composite parent) {
// ViewerCell cell = (ViewerCell) getData(VIEWER_CELL_KEY);
// setData(VIEWER_CELL_KEY, null);
//
// return createViewerToolTipContentArea(event, cell, parent);
// }
//
// /**
// * Creates the content area of the tool tip giving access to the cell the
// * tip is shown for. Subclasses can overload this method to implement their
// * own tool tip design.
// *
// * <p>
// * This method is called from
// * {@link #createToolTipContentArea(Event, Composite)} and by default calls
// * the {@link DefaultToolTip#createToolTipContentArea(Event, Composite)}.
// * </p>
// *
// * @param event
// * the event that which
// * @param cell
// * the cell the tool tip is shown for
// * @param parent
// * the parent of the control to create
// * @return the control to be displayed in the tool tip area
// */
// protected Composite createViewerToolTipContentArea(Event event,
// ViewerCell cell, Composite parent) {
// return super.createToolTipContentArea(event, parent);
// }
//
// protected boolean shouldCreateToolTip(Event event) {
// if (!super.shouldCreateToolTip(event)) {
// return false;
// }
//
// boolean rv = false;
//
// ViewerRow row = viewer.getViewerRow(new Point(event.x, event.y));
//
// viewer.getControl().setToolTipText(""); //$NON-NLS-1$
// Point point = new Point(event.x, event.y);
//
// if (row != null) {
// Object element = row.getItem().getData();
//
// ViewerCell cell = row.getCell(point);
// ViewerColumn viewPart = viewer.getViewerColumn(cell
// .getColumnIndex());
//
// if (viewPart == null) {
// return false;
// }
//
// CellLabelProvider labelProvider = viewPart.getLabelProvider();
// boolean useNative = labelProvider.useNativeToolTip(element);
//
// String text = labelProvider.getToolTipText(element);
// Image img = null;
//
// if (!useNative) {
// img = labelProvider.getToolTipImage(element);
// }
//
// if (useNative || (text == null && img == null)) {
// viewer.getControl().setToolTipText(text);
// rv = false;
// } else {
// setPopupDelay(labelProvider.getToolTipDisplayDelayTime(element));
// setHideDelay(labelProvider.getToolTipTimeDisplayed(element));
//
// Point shift = labelProvider.getToolTipShift(element);
//
// if (shift == null) {
// setShift(new Point(DEFAULT_SHIFT_X, DEFAULT_SHIFT_Y));
// } else {
// setShift(new Point(shift.x, shift.y));
// }
//
// setData(VIEWER_CELL_KEY, cell);
//
// setText(text);
// setImage(img);
// setStyle(labelProvider.getToolTipStyle(element));
// setForegroundColor(labelProvider
// .getToolTipForegroundColor(element));
// setBackgroundColor(labelProvider
// .getToolTipBackgroundColor(element));
// setFont(labelProvider.getToolTipFont(element));
//
// // Check if at least one of the values is set
// rv = getText(event) != null || getImage(event) != null;
// }
// }
//
// return rv;
// }
//
// protected void afterHideToolTip(Event event) {
// super.afterHideToolTip(event);
// // Clear the restored value else this could be a source of a leak
// setData(VIEWER_CELL_KEY, null);
// if (event != null && event.widget != viewer.getControl()) {
// viewer.getControl().setFocus();
// }
// }
}