Java tutorial
/******************************************************************************* * Copyright (c) 2006, 2010 Tom Schindl and others. * * This program and the accompanying materials * are made available under the terms of the Eclipse Public License 2.0 * which accompanies this distribution, and is available at * https://www.eclipse.org/legal/epl-2.0/ * * SPDX-License-Identifier: EPL-2.0 * * Contributors: * Tom Schindl - initial API and implementation *******************************************************************************/ package org.eclipse.jface.snippets.window; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.jface.resource.JFaceResources; import org.eclipse.jface.util.Policy; import org.eclipse.jface.window.DefaultToolTip; import org.eclipse.jface.window.ToolTip; import org.eclipse.swt.SWT; import org.eclipse.swt.events.MouseAdapter; import org.eclipse.swt.events.MouseEvent; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.graphics.RGB; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.layout.RowLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Link; import org.eclipse.swt.widgets.MessageBox; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; /** * Demonstrate usage of custom toolstips for controls * * @author Tom Schindl * */ public class Snippet020CustomizedControlTooltips { protected class MyToolTip extends ToolTip { private Shell parentShell; private String headerText = "ToolTip-Header"; public static final String HEADER_BG_COLOR = Policy.JFACE + ".TOOLTIP_HEAD_BG_COLOR"; public static final String HEADER_FG_COLOR = Policy.JFACE + ".TOOLTIP_HEAD_FG_COLOR"; public static final String HEADER_FONT = Policy.JFACE + ".TOOLTIP_HEAD_FONT"; public static final String HEADER_CLOSE_ICON = Policy.JFACE + ".TOOLTIP_CLOSE_ICON"; public static final String HEADER_HELP_ICON = Policy.JFACE + ".TOOLTIP_HELP_ICON"; public MyToolTip(Control control) { super(control); this.parentShell = control.getShell(); } @Override protected Composite createToolTipContentArea(Event event, Composite parent) { Composite comp = new Composite(parent, SWT.NONE); GridLayout gl = new GridLayout(1, false); gl.marginBottom = 0; gl.marginTop = 0; gl.marginHeight = 0; gl.marginWidth = 0; gl.marginLeft = 0; gl.marginRight = 0; gl.verticalSpacing = 1; comp.setLayout(gl); Composite topArea = new Composite(comp, SWT.NONE); GridData data = new GridData(SWT.FILL, SWT.FILL, true, false); data.widthHint = 200; topArea.setLayoutData(data); topArea.setBackground(JFaceResources.getColorRegistry().get(HEADER_BG_COLOR)); gl = new GridLayout(2, false); gl.marginBottom = 2; gl.marginTop = 2; gl.marginHeight = 0; gl.marginWidth = 0; gl.marginLeft = 5; gl.marginRight = 2; topArea.setLayout(gl); Label l = new Label(topArea, SWT.NONE); l.setText(headerText); l.setBackground(JFaceResources.getColorRegistry().get(HEADER_BG_COLOR)); l.setFont(JFaceResources.getFontRegistry().get(HEADER_FONT)); l.setForeground(JFaceResources.getColorRegistry().get(HEADER_FG_COLOR)); l.setLayoutData(new GridData(GridData.FILL_BOTH)); Composite iconComp = new Composite(topArea, SWT.NONE); iconComp.setLayoutData(new GridData()); iconComp.setLayout(new GridLayout(2, false)); iconComp.setBackground(JFaceResources.getColorRegistry().get(HEADER_BG_COLOR)); gl = new GridLayout(2, false); gl.marginBottom = 0; gl.marginTop = 0; gl.marginHeight = 0; gl.marginWidth = 0; gl.marginLeft = 0; gl.marginRight = 0; iconComp.setLayout(gl); Label helpIcon = new Label(iconComp, SWT.NONE); helpIcon.setBackground(JFaceResources.getColorRegistry().get(HEADER_BG_COLOR)); helpIcon.setImage(JFaceResources.getImage(HEADER_HELP_ICON)); helpIcon.addMouseListener(new MouseAdapter() { @Override public void mouseDown(MouseEvent e) { hide(); openHelp(); } }); Label closeIcon = new Label(iconComp, SWT.NONE); closeIcon.setBackground(JFaceResources.getColorRegistry().get(HEADER_BG_COLOR)); closeIcon.setImage(JFaceResources.getImage(HEADER_CLOSE_ICON)); closeIcon.addMouseListener(new MouseAdapter() { @Override public void mouseDown(MouseEvent e) { parentShell.setFocus(); hide(); } }); createContentArea(comp).setLayoutData(new GridData(GridData.FILL_BOTH)); return comp; } protected Composite createContentArea(Composite parent) { return new Composite(parent, SWT.NONE); } protected void openHelp() { parentShell.setFocus(); } } public Snippet020CustomizedControlTooltips(final Shell parent) { JFaceResources.getColorRegistry().put(MyToolTip.HEADER_BG_COLOR, new RGB(255, 255, 255)); JFaceResources.getFontRegistry().put(MyToolTip.HEADER_FONT, JFaceResources.getFontRegistry() .getBold(JFaceResources.getDefaultFont().getFontData()[0].getName()).getFontData()); JFaceResources.getImageRegistry().put(MyToolTip.HEADER_CLOSE_ICON, ImageDescriptor.createFromFile(Snippet020CustomizedControlTooltips.class, "showerr_tsk.gif")); JFaceResources.getImageRegistry().put(MyToolTip.HEADER_HELP_ICON, ImageDescriptor.createFromFile(Snippet020CustomizedControlTooltips.class, "linkto_help.gif")); Text text = new Text(parent, SWT.BORDER); text.setText("Hello World"); MyToolTip myTooltipLabel = new MyToolTip(text) { @Override protected Composite createContentArea(Composite parent) { Composite comp = super.createContentArea(parent); comp.setBackground(parent.getDisplay().getSystemColor(SWT.COLOR_INFO_BACKGROUND)); FillLayout layout = new FillLayout(); layout.marginWidth = 5; comp.setLayout(layout); Link l = new Link(comp, SWT.NONE); l.setText( "This a custom tooltip you can: \n- pop up any control you want\n- define delays\n - ... \nGo and get Eclipse from <a>http://www.eclipse.org</a>"); l.setBackground(parent.getDisplay().getSystemColor(SWT.COLOR_INFO_BACKGROUND)); l.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { openURL(); } }); return comp; } protected void openURL() { MessageBox box = new MessageBox(parent, SWT.ICON_INFORMATION); box.setText("Eclipse.org"); box.setMessage("Here is where we'd open the URL."); box.open(); } @Override protected void openHelp() { MessageBox box = new MessageBox(parent, SWT.ICON_INFORMATION); box.setText("Info"); box.setMessage("Here is where we'd show some information."); box.open(); } }; myTooltipLabel.setShift(new Point(-5, -5)); myTooltipLabel.setHideOnMouseDown(false); myTooltipLabel.activate(); text = new Text(parent, SWT.BORDER); text.setText("Hello World"); DefaultToolTip toolTip = new DefaultToolTip(text); toolTip.setText("Hello World\nHello World"); toolTip.setBackgroundColor(parent.getDisplay().getSystemColor(SWT.COLOR_RED)); Button b = new Button(parent, SWT.PUSH); b.setText("Popup on press"); final DefaultToolTip toolTipDelayed = new DefaultToolTip(b, ToolTip.RECREATE, true); toolTipDelayed.setText("Hello World\nHello World"); toolTipDelayed.setBackgroundColor(parent.getDisplay().getSystemColor(SWT.COLOR_RED)); toolTipDelayed.setHideDelay(2000); b.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { toolTipDelayed.show(new Point(0, 0)); } }); } public static void main(String[] args) { Display display = new Display(); Shell shell = new Shell(display); shell.setLayout(new RowLayout()); new Snippet020CustomizedControlTooltips(shell); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } display.dispose(); } }