SWT –按钮示例

最新推荐文章于 2021-02-24 11:26:18 发布

cyan20115

最新推荐文章于 2021-02-24 11:26:18 发布

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文章标签： shell 开发工具

本文详细介绍了SWT中五种不同样式的按钮：普通按钮、箭头按钮、切换按钮、复选框按钮和单选按钮，并通过代码示例展示了如何在SWT应用程序中创建和使用这些按钮。

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在SWT中，按钮小部件由五个按钮样式组成。

1）普通按钮 – SWT.PUSH
2）箭头按钮 – SWT.ARROW
3）切换按钮 – SWT.TOGGLE
4）复选框按钮 – SWT.CHECK
5）单选按钮 – SWT.RADIO

在这里，我演示了如何在SWT中创建这些按钮


import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
 
public class SWTButton {
 
public static void main (String [] args) {
	Display display = new Display ();
	Shell shell = new Shell(display);
 
	//push button
	Button pushButton = new Button(shell, SWT.PUSH);
	pushButton.setLocation(50, 50);
	pushButton.setText("Im a Push Button");
	pushButton.pack();
 
	//arrow button
	Button arrowLeftButton = new Button(shell, SWT.ARROW | SWT.LEFT);
	arrowLeftButton.setLocation(50, 100);
	arrowLeftButton.setText("LEFT");
	arrowLeftButton.pack();
	
	Button arrowRightButton = new Button(shell, SWT.ARROW | SWT.RIGHT);
	arrowRightButton.setLocation(80, 100);
	arrowRightButton.setText("RIGHT");
	arrowRightButton.pack();
	
	Button arrowUpButton = new Button(shell, SWT.ARROW | SWT.UP);
	arrowUpButton.setLocation(110, 100);
	arrowUpButton.setText("UP");
	arrowUpButton.pack();
	
	Button arrowDownButton = new Button(shell, SWT.ARROW | SWT.DOWN);
	arrowDownButton.setLocation(140, 100);
	arrowDownButton.setText("DOWN");
	arrowDownButton.pack();
	
	//toggle
	Button toggleNotPressedButton = new Button(shell, SWT.TOGGLE);
	toggleNotPressedButton.setSelection(false);
	toggleNotPressedButton.setLocation(50, 150);
	toggleNotPressedButton.setText("Button Not Pressed");
	toggleNotPressedButton.pack();
	
	Button togglePressedButton = new Button(shell, SWT.TOGGLE);
	togglePressedButton.setSelection(true);
	togglePressedButton.setLocation(170, 150);
	togglePressedButton.setText("Button Pressed");
	togglePressedButton.pack();
	
	//check box
	Button[] checkBoxs = new Button[3];
	checkBoxs[0] = new Button(shell, SWT.CHECK);
	checkBoxs[0].setSelection(true);
	checkBoxs[0].setText("Choice 1");
	checkBoxs[0].setLocation(50,200);
	checkBoxs[0].pack();
	
	checkBoxs[1] = new Button(shell, SWT.CHECK);
	checkBoxs[1].setText("Choice 2");
	checkBoxs[1].setLocation(120,200);
	checkBoxs[1].pack();
	
	checkBoxs[2] = new Button(shell, SWT.CHECK);
	checkBoxs[2].setText("Choice 3");
	checkBoxs[2].setLocation(190,200);
	checkBoxs[2].pack();
	
	//radio
	Button[] radioButtons = new Button[3];
	radioButtons[0] = new Button(shell, SWT.RADIO);
	radioButtons[0].setSelection(true);
	radioButtons[0].setText("Choice 1");
	radioButtons[0].setLocation(50,250);
	radioButtons[0].pack();
	
	radioButtons[1] = new Button(shell, SWT.RADIO);
	radioButtons[1].setText("Choice 2");
	radioButtons[1].setLocation(120,250);
	radioButtons[1].pack();
	
	radioButtons[2] = new Button(shell, SWT.RADIO);
	radioButtons[2].setText("Choice 3");
	radioButtons[2].setLocation(190,250);
	radioButtons[2].pack();
	
	
	shell.setSize(500,500);
	shell.open ();
	while (!shell.isDisposed ()) {
		if (!display.readAndDispatch ()) display.sleep ();
	}
	display.dispose ();
}
}

标签： swt