SWT学习笔记7——组件背景图片，鼠标事件，鼠标样式

import org.eclipse.swt.graphics.Cursor;import org.eclipse.swt.graphics.ImageData;import org.eclipse.swt.widgets.Display;import org.eclipse.swt.widgets.Shell;import org.eclipse.swt.widgets.Composite;import org.eclipse.swt.SWT;import org.eclipse.wb.swt.SWTResourceManager;import org.eclipse.swt.widgets.Button;import org.eclipse.swt.events.MouseEvent;import org.eclipse.swt.events.MouseMoveListener;import org.eclipse.swt.events.MouseTrackListener;import org.eclipse.swt.events.SelectionAdapter;import org.eclipse.swt.events.SelectionEvent;/** * 测试SWT中鼠标事件的监听，组件背景颜色、背景图片的设置、鼠标样式的更改 * @author LC *version: 2012_03_31 */public class TestComposite_Color_BackgroundImage_Mouse {static Display display = Display.getDefault();//三种获取鼠标的方式，第三种为自定义static Cursor handCursor=new Cursor(Display.getDefault(), SWT.CURSOR_HAND);static Cursor crossCursor=display.getSystemCursor(SWT.CURSOR_CROSS);static Cursor myCursor=new Cursor(display, new ImageData("hu.jpg"), 10, 10);public static void main(String[] args) {final Shell shell = new Shell();shell.setImage(SWTResourceManager.getImage("hu.jpg"));shell.setSize(450, 300);shell.setText("测试SWT组件的颜色、背景图片、鼠标样式");//组件一Composite composite = new Composite(shell, SWT.NONE);composite.setBackground(SWTResourceManager.getColor(SWT.COLOR_LIST_SELECTION));//设置背景颜色composite.setBounds(10, 24, 113, 118);//composite.addMouseMoveListener(new MouseMoveListener() {//@Override//public void mouseMove(MouseEvent e) {//System.out.println("MouseMove:\n\t"+e);//}//});//鼠标事件监听composite.addMouseTrackListener(new MouseTrackListener() {@Overridepublic void mouseHover(MouseEvent e) {System.out.println("MouseHover:\n\t"+e);}@Overridepublic void mouseExit(MouseEvent e) {shell.setCursor(display.getSystemCursor(SWT.CURSOR_ARROW));//设置鼠标样式用该函数System.out.println("MouseExit:\n\t"+e);}@Overridepublic void mouseEnter(MouseEvent e) {shell.setCursor(myCursor);System.out.println("MouseEnter:\n\t"+e);}});//组件二final Composite composite_1 = new Composite(shell, SWT.NONE);composite_1.setBackgroundImage(SWTResourceManager.getImage("hu.jpg"));//设置背景图片composite_1.setBounds(151, 24, 190, 199);Button button = new Button(composite_1, SWT.NONE);button.addSelectionListener(new SelectionAdapter() {@Overridepublic void widgetSelected(SelectionEvent e) {if(composite_1.getCursor()!=handCursor)composite_1.setCursor(handCursor);else composite_1.setCursor(crossCursor);}});button.setBounds(53, 98, 108, 27);button.setText("点我切换鼠标样式");shell.open();shell.layout();while (!shell.isDisposed()) {if (!display.readAndDispatch()) {display.sleep();}}}}