Java Tutorial/SWT/ToolBar

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Add a combo box in a tool bar

   <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
*******************************************************************************/

import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.rubo; 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 ToolBarCombo { 

 public static void main(String[] args) {
   Display display = new Display();
   Shell shell = new Shell(display);
   ToolBar bar = new ToolBar(shell, SWT.BORDER);
   for (int i = 0; i < 4; i++) {
     ToolItem item = new ToolItem(bar, 0);
     item.setText("Item " + i);
   }
   ToolItem sep = new ToolItem(bar, SWT.SEPARATOR);
   int start = bar.getItemCount();
   for (int i = start; i < start + 4; i++) {
     ToolItem item = new ToolItem(bar, 0);
     item.setText("Item " + i);
   }
   Combo combo = new Combo(bar, SWT.READ_ONLY);
   for (int i = 0; i < 4; i++) {
     combo.add("Item " + i);
   }
   combo.pack();
   sep.setWidth(combo.getSize().x);
   sep.setControl(combo);
   bar.pack();
   shell.pack();
   shell.open();
   while (!shell.isDisposed()) {
     if (!display.readAndDispatch())
       display.sleep();
   }
   display.dispose();
 }

}</source>





Add Buttons to ToolBar

   <source lang="java">

import org.eclipse.swt.SWT; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.ToolBar; import org.eclipse.swt.widgets.ToolItem; public class ToolBarButtonsAdding { 

 public static void main(String[] args) {
   Display display = new Display();
   final Shell shell = new Shell(display);
   GridLayout gridLayout = new GridLayout();
   gridLayout.numColumns = 3;
   shell.setLayout(gridLayout);
   ToolBar toolbar = new ToolBar(shell, SWT.NONE);
   ToolItem itemBack = new ToolItem(toolbar, SWT.PUSH);
   itemBack.setText("Back");
   ToolItem itemForward = new ToolItem(toolbar, SWT.PUSH);
   itemForward.setText("Forward");
   ToolItem itemStop = new ToolItem(toolbar, SWT.PUSH);
   itemStop.setText("Stop");
   ToolItem itemRefresh = new ToolItem(toolbar, SWT.PUSH);
   itemRefresh.setText("Refresh");
   ToolItem itemGo = new ToolItem(toolbar, SWT.PUSH);
   itemGo.setText("Go");
   GridData data = new GridData();
   data.horizontalSpan = 3;
   toolbar.setLayoutData(data);
   Listener listener = new Listener() {
     public void handleEvent(Event event) {
       ToolItem item = (ToolItem) event.widget;
       String string = item.getText();
       if (string.equals("Back"))
         System.out.println("Back");
       else if (string.equals("Forward"))
         System.out.println("Forward");
       else if (string.equals("Stop"))
         System.out.println("Stop");
       else if (string.equals("Refresh"))
         System.out.println("Refresh");
       else if (string.equals("Go"))
         System.out.println("Go");
     }
   };
   itemBack.addListener(SWT.Selection, listener);
   itemForward.addListener(SWT.Selection, listener);
   itemStop.addListener(SWT.Selection, listener);
   itemRefresh.addListener(SWT.Selection, listener);
   itemGo.addListener(SWT.Selection, listener);
   shell.open();
   while (!shell.isDisposed()) {
     if (!display.readAndDispatch())
       display.sleep();
   }
   display.dispose();
 }

}</source>





A toolbar can be horizontal or vertical.

   <source lang="java">

ToolBar toolBar = new ToolBar(shell, SWT.HORIZONTAL); ToolBar toolBar = new ToolBar(shell, SWT.VERTICAL);</source>





Place a drop down menu in a tool bar

   <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; /* 

* ToolBar example snippet: place a drop down menu in a tool bar
*
* 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.widgets.Display; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Menu; import org.eclipse.swt.widgets.MenuItem; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.ToolBar; import org.eclipse.swt.widgets.ToolItem; public class ToolBarDropDown { 

 public static void main(String[] args) {
   final Display display = new Display();
   final Shell shell = new Shell(display);
   final ToolBar toolBar = new ToolBar(shell, SWT.NONE);
   final Menu menu = new Menu(shell, SWT.POP_UP);
   for (int i = 0; i < 8; i++) {
     MenuItem item = new MenuItem(menu, SWT.PUSH);
     item.setText("Item " + i);
   }
   final ToolItem item = new ToolItem(toolBar, SWT.DROP_DOWN);
   item.addListener(SWT.Selection, new Listener() {
     public void handleEvent(Event event) {
       if (event.detail == SWT.ARROW) {
         Rectangle rect = item.getBounds();
         Point pt = new Point(rect.x, rect.y + rect.height);
         pt = toolBar.toDisplay(pt);
         menu.setLocation(pt.x, pt.y);
         menu.setVisible(true);
       }
     }
   });
   toolBar.pack();
   shell.pack();
   shell.open();
   while (!shell.isDisposed()) {
     if (!display.readAndDispatch())
       display.sleep();
   }
   menu.dispose();
   display.dispose();
 }

}</source>





ToolBar Constants

ConstantDescriptionSWT.FLATMakes the toolbar items flat; only the button under the mouse pointer appears raised.SWT.WRAPWraps the toolbar buttons; this style has no effect on Windows.SWT.RIGHTRight aligns the toolbar.SWT.HORIZONTALDraws a horizontal toolbar.SWT.VERTICALDraws a vertical toolbar.SWT.SHADOW_OUTDraw a shadow around the toolbar.


ToolBar: create tool bar with normal, hot and disabled images.

   <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
*******************************************************************************/

import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.graphics.GC; import org.eclipse.swt.graphics.Image; 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 ToolBarNormalHotDisabledImage { 

 public static void main(String[] args) {
   Display display = new Display();
   Shell shell = new Shell(display);
   Image image = new Image(display, 20, 20);
   Color color = display.getSystemColor(SWT.COLOR_BLUE);
   GC gc = new GC(image);
   gc.setBackground(color);
   gc.fillRectangle(image.getBounds());
   gc.dispose();
   Image disabledImage = new Image(display, 20, 20);
   color = display.getSystemColor(SWT.COLOR_GREEN);
   gc = new GC(disabledImage);
   gc.setBackground(color);
   gc.fillRectangle(disabledImage.getBounds());
   gc.dispose();
   Image hotImage = new Image(display, 20, 20);
   color = display.getSystemColor(SWT.COLOR_RED);
   gc = new GC(hotImage);
   gc.setBackground(color);
   gc.fillRectangle(hotImage.getBounds());
   gc.dispose();
   ToolBar bar = new ToolBar(shell, SWT.BORDER | SWT.FLAT);
   bar.setSize(200, 32);
   for (int i = 0; i < 12; i++) {
     ToolItem item = new ToolItem(bar, 0);
     item.setImage(image);
     item.setDisabledImage(disabledImage);
     item.setHotImage(hotImage);
     if (i % 3 == 0)
       item.setEnabled(false);
   }
   shell.open();
   while (!shell.isDisposed()) {
     if (!display.readAndDispatch())
       display.sleep();
   }
   image.dispose();
   disabledImage.dispose();
   hotImage.dispose();
   display.dispose();
 }

}</source>





ToolBar: wrap on resize

   <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
*******************************************************************************/

import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Point; 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; import org.eclipse.swt.widgets.ToolBar; import org.eclipse.swt.widgets.ToolItem; public class ToolBarWrapResize { 

 public static void main(String[] args) {
   Display display = new Display();
   final Shell shell = new Shell(display);
   final ToolBar toolBar = new ToolBar(shell, SWT.WRAP);
   for (int i = 0; i < 12; i++) {
     ToolItem item = new ToolItem(toolBar, SWT.PUSH);
     item.setText("Item " + i);
   }
   shell.addListener(SWT.Resize, new Listener() {
     public void handleEvent(Event e) {
       Rectangle rect = shell.getClientArea();
       Point size = toolBar.ruputeSize(rect.width, SWT.DEFAULT);
       toolBar.setSize(size);
     }
   });
   toolBar.pack();
   shell.pack();
   shell.open();
   while (!shell.isDisposed()) {
     if (!display.readAndDispatch())
       display.sleep();
   }
   display.dispose();
 }

}</source>


Источник — «http://jexp.ru/index.php?title=Java_Tutorial/SWT/ToolBar&oldid=3170»