实战SWT之FormLayout分割窗口菜单状态栏

1、实战SWT之FormLayout/分割窗口/菜单/状态栏(2006-11-03 08:51:37) 转载  分类：IT技术为了编写桌面应用程序，因为用JAVA来写，SWT是一个非常好的工具包，近来有使用了一个很好的布局FormLayout，它是用控件的四个顶点的位置来定位一个控件及它的大小的。下面的抓图是我布局好的一个符合窗口，大家一定见惯了这样的窗口。窗口最上方的是菜单Menu，没有写子菜单；中间部分是一个分割窗口SashForm，分割窗口的左边是一棵树Tree，右边是一个标签页TabFolder；最下面的是一个状态栏CoolBar。窗口的布局与界面显示完全是WINDOWS的风格，

2、不需要自己动手写代码来实现复杂的界面布局。下面是源代码。package test.base;import org.eclipse.swt.layout.FormAttachment;import org.eclipse.swt.layout.FormData;import org.eclipse.swt.graphics.Color;import org.eclipse.swt.graphics.Point;import org.eclipse.swt.widgets.Shell;import org.eclipse.swt.widgets.TabFolder;import org.eclip

3、se.swt.SWT;import org.eclipse.swt.layout.FormLayout;import org.eclipse.swt.widgets.Display;import org.eclipse.swt.widgets.Label;import org.eclipse.swt.widgets.TabItem;import org.eclipse.swt.widgets.Menu;import org.eclipse.swt.widgets.MenuItem;import org.eclipse.swt.widgets.CoolBar;import org.eclipse

4、.swt.widgets.TreeItem;import org.eclipse.swt.custom.SashForm;import org.eclipse.swt.widgets.Tree;public class TestView private Shell sShell = null; / jve:decl-index=0:visual-constraint="10,10"private Menu menuBar = null;private CoolBar coolBar = null;private SashForm sashForm = null;privat

5、e TabFolder tabFolder = null;private Tree tree = null;private void createSShell() sShell = new Shell();sShell.setText("Shell");createCoolBar();createSashForm();sShell.setSize(new Point(300, 200);sShell.setLayout(new FormLayout();menuBar = new Menu(sShell, SWT.BAR);createMenuBar();sShell.se

6、tMenuBar(menuBar);private void createMenuBar() MenuItem push = new MenuItem(menuBar, SWT.PUSH);push.setText("文件");MenuItem push1 = new MenuItem(menuBar, SWT.PUSH);push1.setText("编辑");MenuItem push2 = new MenuItem(menuBar, SWT.PUSH);push2.setText("窗口");MenuItem push3 = n

7、ew MenuItem(menuBar, SWT.PUSH);push3.setText("帮助");private void createCoolBar() coolBar = new CoolBar(sShell, SWT.NONE);FormData formData = new FormData();formData.left = new FormAttachment(00, 0);formData.right = new FormAttachment(100, -0);formData.top = new FormAttachment(100, -24);form

8、Data.bottom = new FormAttachment(100, 0);coolBar.setLayoutData(formData);Color color = new Color(Display.getCurrent(), 0,0,0);coolBar.setBackground(color);private void createSashForm() sashForm = new SashForm(sShell, SWT.NONE);FormData formData = new FormData();formData.left = new FormAttachment(0,

9、3);formData.right = new FormAttachment(100, -3);formData.top = new FormAttachment(0, 0);formData.bottom = new FormAttachment(100, -25);sashForm.setLayoutData(formData);tree = new Tree(sashForm, SWT.NONE);createTree();createTabFolder();sashForm.setWeights(new int 1, 3);private void createTree() TreeI

10、tem treeItem = new TreeItem(tree, SWT.NONE);treeItem.setText("根结点");private void createTabFolder() tabFolder = new TabFolder(sashForm, SWT.NONE);TabItem tabItem = new TabItem(tabFolder, SWT.NONE);tabItem.setText("属性标签");Label label = new Label(tabFolder, SWT.NONE);label.setText(&

11、quot;文字标签");tabItem.setControl(label);formData.left = new FormAttachment(0, 3);第一个参数0表示父控件宽度的0%，第二个参数3表示离左边的距离为3pix。这样一来左边位置就是(width*0%+3)。formData.right = new FormAttachment(100, -3);第一个参数100表示父宽度的100%，第二个参数-3表示离左边的距离为-3pix。这样一来右边位置就是(width*100%-3)。formData.top = new FormAttachment(0, 0);第一个参数0表示父控件高度的0%，第二个参