SWT(JFace)体验之StackLayout布局

最新推荐文章于 2021-10-20 18:02:14 发布

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本文提供了一个使用Eclipse SWT库中的StackLayout布局管理器的示例程序。该示例展示了如何通过按钮切换不同的界面组件，并保持界面整洁。通过三个按钮实现了界面间的循环切换。

测试代码如下：

package swt_jface.demo2; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.StackLayout; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; public class StackLayoutSample { Display display = new Display(); Shell shell = new Shell(display); final Button[] buttons = new Button[3]; public StackLayoutSample() { final StackLayout stackLayout = new StackLayout(); shell.setLayout(stackLayout); for(int i=0; i<buttons.length; i++) { buttons[i] = new Button(shell, SWT.NULL); buttons[i].setText("Button #" + i); buttons[i].addSelectionListener(new SelectionListener() { public void widgetSelected(SelectionEvent e) { Button nextButton = null; for(int i=0; i<buttons.length; i++) { if(buttons[i] == e.widget) { if(i == buttons.length - 1) nextButton = buttons[0]; else nextButton = buttons[i+1]; } } stackLayout.topControl = nextButton; shell.layout(); } public void widgetDefaultSelected(SelectionEvent e) { } }); } stackLayout.topControl = buttons[0]; shell.setSize(200, 100); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) { display.sleep(); } } display.dispose(); } public static void main(String[] args) { new StackLayoutSample(); } }