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SWT（Standard Widget Toolkit）是Java编程环境中用于创建图形用户界面（GUI）的一种库，它由Eclipse基金会维护。SWT的设计目标是提供一个高效、功能丰富的用户界面工具包，与Java Swing相比，SWT更接近于底层操作系统，因此在性能和原生感方面有优势。本教材将深入探讨SWT的使用，帮助开发者掌握如何用Java编写出美观且高效的桌面应用程序。 SWT的主要优点在于它的原生性。由于SWT直接调用操作系统提供的API，因此创建的界面具有与平台一致的外观和感觉。这意味着在Windows、Linux或Mac OS等不同操作系统上运行SWT应用时，用户界面将呈现出相应的平台风格，提高了用户体验。 SWT提供了丰富的控件集，包括按钮、文本框、列表、表格、树形视图等，满足各种GUI设计需求。此外，SWT还支持拖放操作、打印、剪贴板等功能，使得开发者可以轻松构建复杂的应用程序。在SWT中，组件的布局管理是通过布局（Layout）类实现的。布局管理器如FillLayout、GridLayout、FormLayout等，可以帮助开发者灵活地组织和调整控件的位置和大小，以适应不同的窗口尺寸。事件处理是GUI编程中的核心部分。SWT使用事件监听器模式，开发者可以通过实现特定的接口（如SelectionListener、FocusListener等）来响应用户的交互行为。例如，当用户点击按钮时，会触发对应的事件处理器执行相应的代码。 SWT也提供了强大的数据绑定框架JFace，它可以简化模型-视图-控制器（MVC）架构的实现，使得数据更新能够自动反映到界面上。同时，JFace还包含了一些高级控件，如对话框、表单和视图，进一步丰富了开发者的工具箱。在SWT系列教材中，你将学习如何初始化SWT环境，创建基本的窗口和控件，以及如何处理事件。教材还将深入讲解布局管理、数据绑定和JFace的使用，通过实例演示如何构建完整的GUI应用程序。此外，你还将了解到SWT与其他Java GUI框架（如JavaFX、Swing）的比较，以便根据项目需求选择最合适的工具。 SWT为Java开发者提供了一个强大且高效的GUI开发选项。通过学习和实践SWT，你可以创建出性能优秀、界面友好的桌面应用程序，提升你的编程技能和职业竞争力。这份SWT系列教材将是你的得力助手，助你在Java GUI编程的道路上更进一步。

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swt系列教材.rar （9个子文件）

swt系列教材

4-Layouts.pdf 193KB

9-Custom.pdf 143KB

14-DesignPatterns.pdf 142KB

10-JUnit.pdf 111KB

13-Refactoring.pdf 387KB

2-Basic.pdf 139KB

5-ClientBilling.pdf 153KB

3-Advanced.pdf 445KB

6-Compiling.pdf 124KB

Department of Computer Science Advanced SWT Widgets

University of Manitoba Tutorial 3 – Page 1 www.cs.umanitoba.ca/~eclipse

Advanced SWT Widgets

1, 2

by Shantha Ramachandran, Christopher Batty, and Weichi Truong

Department of Computer Science, University of Manitoba, Winnipeg, Manitoba, Canada

Last revised: February 20, 2004

Overview:

In this document, we describe some of the more advanced SWT widgets.

Tables

To add a table to your shell, use the following code:

Table table1 = new Table(shell, SWT.BORDER);

The styles that can be used are BORDER, H_SCROLL, V_SCROLL, SINGLE, MULTI,

CHECK (this style creates a check box column as the first column), FULL_SELECTION

and HIDE_SELECTION.

There are two options you can set for a table. You can decide whether the lines will be

visible on the table.

You can also decide whether the headers for the columns will be

visible. Both of these properties are defaulted to false. The following lines of code will

set these properties:

table1.setLinesVisible(true);

table1.setHeaderVisible(true);

Now, the table is created, but as a default it only has one column. If you try to add any

items to the table, only the first field of the item will be displayed in the table. In order to

display all the fields you want, you need to define TableColumns.

TableColumns

To add table columns to your table, use the following code:

This work was funded by an IBM Eclipse Innovation Grant.

Department of Computer Science Advanced SWT Widgets

University of Manitoba Tutorial 3 – Page 2 www.cs.umanitoba.ca/~eclipse

TableColumn name = new TableColumn(table1,SWT.LEFT);

The styles that are allowed are LEFT, RIGHT and CENTER.

You should also set at least the width of the column, and a name if you are going to

display the headers:

name.setText("Name");

name.setWidth(50);

After creating the columns for your table, you are now ready to add TableItems.

TableItems

To add a table item to your table, use the following code:

TableItem item1 = new TableItem(table1,SWT.NONE);

There are no styles for a TableItem, so you can use SWT.NONE, which is 0.

To set the text for an item, you can use the setText() method:

item1.setText(new String[] {"Sarah","15","390 Sussex Ave"});

This will create a TableItem with fields in the order that you defined them. If you wish to

define one field at a time, you can use the setText(int, string) method which places the

text into a specific field in the record.

After creating TableColumns and TableItems, your table will be fully populated. Now we

will look at three simple examples of tables and see the different styles that can be used.

The first example has a border, fixed size columns, with different horizontal alignments:

Table table1 = new Table(shell, SWT.BORDER);

table1.setBounds(10,10,270,60);

table1.setLinesVisible(true);

TableColumn name = new TableColumn(table1,SWT.LEFT);

name.setText("Name");

name.setWidth(50);

TableColumn age = new TableColumn(table1,SWT.RIGHT);

age.setText("Age");

age.setWidth(30);

TableColumn address = new TableColumn(table1,SWT.LEFT);

address.setText("Address");

Department of Computer Science Advanced SWT Widgets

University of Manitoba Tutorial 3 – Page 3 www.cs.umanitoba.ca/~eclipse

address.setWidth(200);

TableItem item1 = new TableItem(table1,SWT.NONE);

item1.setText(new String[] {"Sarah","15","390 Sussex Ave"});

TableItem item2 = new TableItem(table1,SWT.NONE);

item2.setText(new String[] {"Joseph","56","7 Yourstreet St"});

The second example has a checkbox column. We can set the checked status of the item

through the code. There are no grid lines, but the header is visible. This example also sets

the background color of one of the table items:

Table table2 = new Table(shell, SWT.CHECK|SWT.HIDE_SELECTION);

table2.setBounds(10,80,270,80);

table2.setHeaderVisible(true);

TableColumn fruit = new TableColumn(table2,SWT.LEFT);

fruit.setText("Fruit");

fruit.setWidth(100);

TableColumn colour = new TableColumn(table2,SWT.LEFT);

colour.setText("Colour");

colour.setWidth(170);

TableItem fruit1 = new TableItem(table2,SWT.NONE);

fruit1.setText(0,"Apple");

fruit1.setText(1,"Red");

fruit1.setChecked(true);

TableItem fruit2 = new TableItem(table2,SWT.NONE);

fruit2.setText(new String[] {"Kiwi","Green"});

fruit2.setBackground(new Color(display,255,0,0));

TableItem fruit3 = new TableItem(table2,SWT.NONE);

fruit3.setText(new String[] {"Banana","Yellow"});

The last example implements the FULL_SELECTION style, which means that when you

select a table item, the entire item is highlighted instead of just the first field. The first

column is resizable, meaning you can drag it larger or smaller. Note that the three

columns each have a different horizontal alignment. This example also shows how you

can select an item using code:

Table table3 = new Table(shell, SWT.FULL_SELECTION);

table3.setLinesVisible(true);

table3.setBounds(10,180,270,80);

TableColumn first = new TableColumn(table3,SWT.LEFT);

first.setResizable(true);

first.setText("First");

Department of Computer Science Advanced SWT Widgets

University of Manitoba Tutorial 3 – Page 4 www.cs.umanitoba.ca/~eclipse

first.setWidth(80);

TableColumn second = new TableColumn(table3,SWT.CENTER);

second.setText("Second");

second.setWidth(80);

TableColumn third = new TableColumn(table3,SWT.RIGHT);

third.setText("Third");

third.setWidth(80);

String[] numbers = new String[] {"One","Two","Three"};

TableItem firstItem = new TableItem(table3,SWT.NONE);

firstItem.setText(numbers);

TableItem secondItem = new TableItem(table3,SWT.NONE);

secondItem.setText(numbers);

TableItem thirdItem = new TableItem(table3,SWT.NONE);

thirdItem.setText(numbers);

TableItem fourthItem = new TableItem(table3,SWT.NONE);

fourthItem.setText(numbers);

table3.select(1);

The following window incorporates all three of these examples:

TabFolder

To add a tab folder to your shell, use the following code:

TabFolder tabFolder1 = new TabFolder(shell,SWT.NONE);

The BORDER style can be used for tab folders. If you create a tab folder and do not add

any TabItems to it, it resembles a raised composite:

Department of Computer Science Advanced SWT Widgets

University of Manitoba Tutorial 3 – Page 5 www.cs.umanitoba.ca/~eclipse

To create a TabItem, use the following code:

TabItem item1 = new TabItem(tabFolder1,SWT.NONE);

There are no styles available for TabItems. There are two important steps for creating tab

items. First, if you want a label on the tab, you need to use the setText() method.

Secondly, in order to populate the tab item, you need to set the control which it contains,

using the setControl() method:

item1.setText("Buttons");

item1.setControl(buttonComp);

Now, in this example, buttonComp is a Composite, as you will see in the following

example. Since you can only set one control into a tab item, a Composite is usually

desired. In this case, you can add multiple controls to the composite, and they will all

appear on the specified tab item. This is all the code that is necessary, as events for tab

changing are built into the TabItem and TabFolder controls:

TabFolder tabFolder1 = new TabFolder(shell,SWT.NONE);

tabFolder1.setBounds(10,10,270,250);

//Set up the button tab

Composite buttonComp = new Composite(tabFolder1,SWT.NONE);

Button button1 = new Button(buttonComp,SWT.PUSH);

button1.setSize(100,100);

button1.setText("Hello");

button1.setLocation(0,0);

Button button2 = new Button(buttonComp,SWT.ARROW);

button2.setBounds(150,0,50,50);

TabItem item1 = new TabItem(tabFolder1,SWT.NONE);

item1.setText("Buttons");

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