| /******************************************************************************* |
| * Copyright (c) 2004, 2011 Tasktop Technologies and others. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * https://www.eclipse.org/legal/epl-2.0 |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Tasktop Technologies - initial API and implementation |
| * Kevin Barnes, IBM Corporation - fix for bug 277974 |
| *******************************************************************************/ |
| |
| package org.eclipse.mylyn.commons.workbench.forms; |
| |
| import org.eclipse.jface.viewers.ColumnViewer; |
| import org.eclipse.jface.viewers.ViewerCell; |
| import org.eclipse.mylyn.commons.ui.GradientToolTip; |
| import org.eclipse.mylyn.commons.ui.PlatformUiUtil; |
| import org.eclipse.mylyn.internal.commons.workbench.CommonsWorkbenchPlugin; |
| import org.eclipse.swt.graphics.Color; |
| import org.eclipse.swt.graphics.Point; |
| import org.eclipse.swt.graphics.Rectangle; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Event; |
| import org.eclipse.swt.widgets.Scrollable; |
| import org.eclipse.swt.widgets.Table; |
| import org.eclipse.swt.widgets.TableItem; |
| import org.eclipse.swt.widgets.ToolBar; |
| import org.eclipse.swt.widgets.ToolItem; |
| import org.eclipse.swt.widgets.Tree; |
| import org.eclipse.swt.widgets.TreeItem; |
| import org.eclipse.swt.widgets.Widget; |
| import org.eclipse.ui.forms.IFormColors; |
| |
| /** |
| * @author Mik Kersten |
| * @author Eric Booth |
| * @author Leo Dos Santos |
| * @author Steffen Pingel |
| * @since 3.7 |
| */ |
| public abstract class RichToolTip extends GradientToolTip { |
| |
| private final static int X_SHIFT = PlatformUiUtil.getToolTipXShift(); |
| |
| private final static int Y_SHIFT = 1; |
| |
| private final Control control; |
| |
| private Object data; |
| |
| private boolean enabled; |
| |
| private boolean triggeredByMouse = true; |
| |
| private ColumnViewer viewer; |
| |
| private boolean visible; |
| |
| public RichToolTip(Control control) { |
| super(control); |
| this.control = control; |
| setEnabled(true); |
| setShift(new Point(1, 1)); |
| } |
| |
| @Override |
| protected void afterHideToolTip(Event event) { |
| triggeredByMouse = true; |
| visible = false; |
| } |
| |
| protected Object computeData(Widget hoverWidget) { |
| return hoverWidget.getData(); |
| } |
| |
| private boolean contains(int x, int y) { |
| if (control instanceof Scrollable) { |
| return ((Scrollable) control).getClientArea().contains(x, y); |
| } else { |
| return control.getBounds().contains(x, y); |
| } |
| } |
| |
| public void dispose() { |
| hide(); |
| } |
| |
| private Rectangle getBounds(Widget widget) { |
| if (widget instanceof ToolItem) { |
| ToolItem w = (ToolItem) widget; |
| return w.getBounds(); |
| } |
| if (widget instanceof TableItem) { |
| TableItem w = (TableItem) widget; |
| return w.getBounds(); |
| } |
| if (widget instanceof TreeItem) { |
| TreeItem w = (TreeItem) widget; |
| return w.getBounds(); |
| } |
| return null; |
| } |
| |
| public Object getData() { |
| return data; |
| } |
| |
| @Override |
| public Point getLocation(Point tipSize, Event event) { |
| Widget widget = getTipWidget(event); |
| if (widget != null) { |
| Rectangle bounds = getBounds(widget); |
| if (bounds != null) { |
| if (data instanceof ViewerCell) { |
| bounds = ((ViewerCell) data).getBounds(); |
| } |
| return control.toDisplay(bounds.x + X_SHIFT, bounds.y + bounds.height + Y_SHIFT); |
| } |
| } |
| return super.getLocation(tipSize, event);//control.toDisplay(event.x + xShift, event.y + yShift); |
| } |
| |
| protected Widget getTipWidget(Event event) { |
| Point widgetPosition = new Point(event.x, event.y); |
| Widget widget = event.widget; |
| if (widget instanceof ToolBar) { |
| ToolBar w = (ToolBar) widget; |
| return w.getItem(widgetPosition); |
| } |
| if (widget instanceof Table) { |
| Table w = (Table) widget; |
| return w.getItem(widgetPosition); |
| } |
| if (widget instanceof Tree) { |
| Tree w = (Tree) widget; |
| return w.getItem(widgetPosition); |
| } |
| |
| return widget; |
| } |
| |
| protected Color getTitleColor() { |
| return CommonsWorkbenchPlugin.getDefault().getFormColors(control.getDisplay()).getColor(IFormColors.TITLE); |
| } |
| |
| public ColumnViewer getViewer() { |
| return viewer; |
| } |
| |
| public boolean isEnabled() { |
| return enabled; |
| } |
| |
| public boolean isTriggeredByMouse() { |
| return triggeredByMouse; |
| } |
| |
| public boolean isVisible() { |
| return visible; |
| } |
| |
| public void setEnabled(boolean enabled) { |
| this.enabled = enabled; |
| } |
| |
| public void setViewer(ColumnViewer viewer) { |
| this.viewer = viewer; |
| } |
| |
| @Override |
| protected boolean shouldCreateToolTip(Event event) { |
| data = null; |
| |
| if (isTriggeredByMouse() && !enabled) { |
| return false; |
| } |
| |
| if (super.shouldCreateToolTip(event)) { |
| Widget tipWidget = getTipWidget(event); |
| if (tipWidget != null) { |
| if (viewer != null) { |
| data = viewer.getCell(new Point(event.x, event.y)); |
| } else { |
| Rectangle bounds = getBounds(tipWidget); |
| if (tipWidget instanceof ScalingHyperlink) { |
| data = computeData(tipWidget); |
| } else if (bounds != null && contains(bounds.x, bounds.y)) { |
| data = computeData(tipWidget); |
| } |
| } |
| } |
| } |
| |
| if (data == null) { |
| hide(); |
| return false; |
| } else { |
| return true; |
| } |
| } |
| |
| @Override |
| public void show(Point location) { |
| triggeredByMouse = false; |
| super.show(location); |
| } |
| |
| } |