swt_jface(2) 几种常用布局
// RowLayoutTest .java
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.RowData;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class RowLayoutTest {
/**
* @param args
*/
public static void main(String[] args) {
Display display=new Display();
Shell shell=new Shell();
shell.setText("标题");
shell.setSize(400,300);
//RowLayout布局就是是组件按行排列
//shell.setLayout(new RowLayout());
//组件
new Button(shell,SWT.NONE).setText("kkk");
new Button(shell, SWT.NONE).setText("确定");
new Button(shell,SWT.NONE).setText("kk1");
new Button(shell, SWT.NONE).setText("确1");
new Button(shell,SWT.NONE).setText("kk2");
new Button(shell, SWT.NONE).setText("确2");
new Button(shell,SWT.NONE).setText("kkk");
new Button(shell, SWT.NONE).setText("确定");
new Button(shell,SWT.NONE).setText("kk1");
new Button(shell, SWT.NONE).setText("确1");
new Button(shell,SWT.NONE).setText("kk2");
new Button(shell, SWT.NONE).setText("确2");
new Button(shell,SWT.NONE).setText("kkk");
new Button(shell, SWT.NONE).setText("确定");
new Button(shell,SWT.NONE).setText("kk1");
new Button(shell, SWT.NONE).setText("确1");
new Button(shell,SWT.NONE).setText("kk2");
new Button(shell, SWT.NONE).setText("确2");
RowLayout layout = new RowLayout( /*SWT.VERTICAL垂直排列*/ );
layout.marginWidth = 20;
layout.marginHeight = 10;
layout.spacing = 15;
//垂直排列
//layout.type = SWT.VERTICAL;
//设置布局管理器上的组件大小相同
//layout.pack = false;
// 设置布局管理器上的组件根据容器空间可以拉伸
layout.justify = true;
//不自动换行
// layout.wrap = false;
new Button(shell, SWT.NONE).setText("确定");
Button b = new Button(shell, SWT.NONE);
b.setText("取消");
// 使用RowData布局数据类来控制按钮，使按钮改为50像素宽，30像素长
RowData rowData = new RowData(50, 30);
// 把组件隐藏不占位，相当于组件不存在
//rowData.exclude = true;
rowData.width = 100;
//把组件隐藏，但位置还占着
//b.setVisible(false);
b.setLayoutData(rowData);
new Button(shell, SWT.NONE).setText("帮助");
shell.setLayout(layout);
shell.open();
while(!shell.isDisposed()){
if(!display.readAndDispatch()){
display.sleep();
}
}
display.dispose();
}
}
//GridLayoutTest
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class GridLayoutTest {
/**
* @param args
*/
/**
* @param args
*/
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell();
shell.setText("标题");
shell.setSize(400, 300);
//GridLayout为网格布局
//4代表把这个布局分成几列
//false代表是否等距分隔空间
shell.setLayout(new GridLayout(4, true));
// 组建
new Button(shell, SWT.NONE).setText("kkk");
new Button(shell, SWT.NONE).setText("确定");
new Button(shell, SWT.NONE).setText("kk1");
new Button(shell, SWT.NONE).setText("确1");
new Button(shell,SWT.NONE).setText("kk2");
new Button(shell, SWT.NONE).setText("确2");
new Button(shell, SWT.NONE).setText("kkk");
new Button(shell, SWT.NONE).setText("确定");
new Button(shell, SWT.NONE).setText("kk1");
new Button(shell, SWT.NONE).setText("确1");
new Button(shell,SWT.NONE).setText("kk2");
new Button(shell, SWT.NONE).setText("确2");
// 定义一个GridData对象，让帮助按钮占用n列的空间
Button helpButton = new Button(shell, SWT.NONE);
//GridData.FILL_VERTICAL是按钮垂直放置
GridData gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL/*这个是水平对齐式填充*//* GridData.FILL_HORIZONTAL 这个是水平抢占式填充*//* GridData.FILL_VERTICAL*/);
gridData.horizontalSpan = 3;//该句使按钮占用两列空间
//gridData.grabExcessHorizontalSpace=true;
//gridData.verticalSpan = 2;
//gridData.grabExcessVerticalSpace=true;
helpButton.setLayoutData(gridData);
helpButton.setText("帮助");
new Button(shell, SWT.NONE).setText("kk1");
new Button(shell, SWT.NONE).setText("确1");
new Button(shell,SWT.NONE).setText("kk2");
new Button(shell, SWT.NONE).setText("确2");
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
}
//FillLayoutTestimport org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class FillLayoutTest {
public static void main(String[] args) {
Display display=new Display();
Shell shell=new Shell();
shell.setText("标题");
shell.setSize(400,300);
//布局FillLayout就是使组建占满整个容器 默认为横着排 SWT.VERTICAL是组建垂直排
// shell.setLayout(new FillLayout(SWT.VERTICAL));
shell.setLayout(new FillLayout());
//组建
new Button(shell,SWT.NONE).setText("kkk");
new Button(shell, SWT.NONE).setText("确定");
new Button(shell,SWT.NONE).setText("kk1");
// new Button(shell, SWT.NONE).setText("确1");
// new Button(shell,SWT.NONE).setText("kk2");
// new Button(shell, SWT.NONE).setText("确2");
shell.open();
while(!shell.isDisposed()){
if(!display.readAndDispatch()){
display.sleep();
}
}
display.dispose();
}
}