Java Tutorial/SWT/ToolTip
Содержание
Add ToolTip to Shell Window
<source lang="java">
import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; public class ShellWindowToolTip {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setToolTipText ("Shell \n toolTip");
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>
Add ToolTip to TabItem
<source lang="java">
import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.TabFolder; import org.eclipse.swt.widgets.TabItem; public class TabItemToolTip{ public static void main (String [] args) {
Display display = new Display ();
Shell shell = new Shell (display);
TabFolder folder = new TabFolder (shell, SWT.BORDER);
folder.setSize (200, 200);
TabItem item0 = new TabItem (folder, 0);
item0.setToolTipText ("TabItem \n toolTip");
shell.open ();
while (!shell.isDisposed ()) {
if (!display.readAndDispatch ()) display.sleep ();
}
display.dispose ();
} }</source>
Add ToolTip to ToolItem
<source lang="java">
import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.ToolBar; import org.eclipse.swt.widgets.ToolItem; public class ToolItemToolTip {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
ToolBar bar = new ToolBar(shell, SWT.BORDER);
bar.setBounds(0, 20, 200, 64);
ToolItem item1 = new ToolItem(bar, 0);
item1.setToolTipText("ToolItem \n toolTip");
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>
Create fake tool tips for items in a table
<source lang="java">
/*******************************************************************************
* Copyright (c) 2000, 2005 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.snippets; /*
* Tool Tips example snippet: create fake tool tips for items in a table * * For a list of all SWT example snippets see * http://www.eclipse.org/swt/snippets/ */
import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.graphics.Rectangle; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.TableItem; public class TooltipTableItem {
public static void main(String[] args) {
final Display display = new Display();
final Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
final Table table = new Table(shell, SWT.BORDER);
for (int i = 0; i < 20; i++) {
TableItem item = new TableItem(table, SWT.NONE);
item.setText("item " + i);
}
// Disable native tooltip
table.setToolTipText("");
// Implement a "fake" tooltip
final Listener labelListener = new Listener() {
public void handleEvent(Event event) {
Label label = (Label) event.widget;
Shell shell = label.getShell();
switch (event.type) {
case SWT.MouseDown:
Event e = new Event();
e.item = (TableItem) label.getData("_TABLEITEM");
// Assuming table is single select, set the selection as if
// the mouse down event went through to the table
table.setSelection(new TableItem[] { (TableItem) e.item });
table.notifyListeners(SWT.Selection, e);
shell.dispose();
table.setFocus();
break;
case SWT.MouseExit:
shell.dispose();
break;
}
}
};
Listener tableListener = new Listener() {
Shell tip = null;
Label label = null;
public void handleEvent(Event event) {
switch (event.type) {
case SWT.Dispose:
case SWT.KeyDown:
case SWT.MouseMove: {
if (tip == null)
break;
tip.dispose();
tip = null;
label = null;
break;
}
case SWT.MouseHover: {
TableItem item = table.getItem(new Point(event.x, event.y));
if (item != null) {
if (tip != null && !tip.isDisposed())
tip.dispose();
tip = new Shell(shell, SWT.ON_TOP | SWT.NO_FOCUS | SWT.TOOL);
tip.setBackground(display.getSystemColor(SWT.COLOR_INFO_BACKGROUND));
FillLayout layout = new FillLayout();
layout.marginWidth = 2;
tip.setLayout(layout);
label = new Label(tip, SWT.NONE);
label.setForeground(display.getSystemColor(SWT.COLOR_INFO_FOREGROUND));
label.setBackground(display.getSystemColor(SWT.COLOR_INFO_BACKGROUND));
label.setData("_TABLEITEM", item);
label.setText(item.getText());
label.addListener(SWT.MouseExit, labelListener);
label.addListener(SWT.MouseDown, labelListener);
Point size = tip.ruputeSize(SWT.DEFAULT, SWT.DEFAULT);
Rectangle rect = item.getBounds(0);
Point pt = table.toDisplay(rect.x, rect.y);
tip.setBounds(pt.x, pt.y, size.x, size.y);
tip.setVisible(true);
}
}
}
}
};
table.addListener(SWT.Dispose, tableListener);
table.addListener(SWT.KeyDown, tableListener);
table.addListener(SWT.MouseMove, tableListener);
table.addListener(SWT.MouseHover, tableListener);
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>
Show a tool tip inside a rectangle
<source lang="java">
/*******************************************************************************
* Copyright (c) 2000, 2004 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.snippets; /*
* Tool Tips example snippet: show a tool tip inside a rectangle * * For a list of all SWT example snippets see * http://www.eclipse.org/swt/snippets/ */
import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.graphics.GC; import org.eclipse.swt.graphics.Rectangle; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Shell; public class ToolTipRectangle {
public static void main(String[] args) {
Display display = new Display();
final Color[] colors = { display.getSystemColor(SWT.COLOR_RED),
display.getSystemColor(SWT.COLOR_GREEN), display.getSystemColor(SWT.COLOR_BLUE), };
final Rectangle[] rects = { new Rectangle(10, 10, 30, 30), new Rectangle(20, 45, 25, 35),
new Rectangle(80, 80, 10, 10), };
final Shell shell = new Shell(display);
Listener mouseListener = new Listener() {
public void handleEvent(Event event) {
switch (event.type) {
case SWT.MouseEnter:
case SWT.MouseMove:
for (int i = 0; i < rects.length; i++) {
if (rects[i].contains(event.x, event.y)) {
String text = "ToolTip " + i;
if (!(text.equals(shell.getToolTipText()))) {
shell.setToolTipText("ToolTip " + i);
}
return;
}
}
shell.setToolTipText(null);
break;
}
}
};
shell.addListener(SWT.MouseMove, mouseListener);
shell.addListener(SWT.MouseEnter, mouseListener);
shell.addListener(SWT.Paint, new Listener() {
public void handleEvent(Event event) {
GC gc = event.gc;
for (int i = 0; i < rects.length; i++) {
gc.setBackground(colors[i]);
gc.fillRectangle(rects[i]);
gc.drawRectangle(rects[i]);
}
}
});
shell.setSize(200, 200);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>
