eclipse开发rcp4应用示例

package rcpf1; import java.io.InputStream; import org.eclipse.swt.SWT; import org.eclipse.swt.events.PaintEvent; import org.eclipse.swt.events.PaintListener; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.graphics.RGB; import org.eclipse.swt.widgets.Canvas; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; /** * @author qzc * 闪屏 */ public class RcpSplash extends Shell implements Runnable{ private Integer iSleep=3000;//闪屏 时长 public Label c; /** *填充背景，能够随着宽高变化重新填充 setBackgroundImage的话是一次性填充不会重绘 */ public void fillbg(Composite obj ,InputStream c) {//parent.setBackgroundImage(new Image(parent.getDisplay(),this.getClass().getResourceAsStream("/icons/bg.png"))); final Image image=new Image(obj.getDisplay(),c); final int imgWidth = image.getBounds().width; final int imgHeight = image.getBounds().height; obj.addPaintListener(new PaintListener() { @Override //jdk1.8需要 1.7不要 public void paintControl(PaintEvent event) { event.gc.drawImage(image, 0, 0, imgWidth, imgHeight, 0, 0, event.width, event.height); } }); } /** * Create the shell. * @param display */ public RcpSplash(Display display ) { super(display, SWT.NO_TRIM |SWT.TOP); //setBackgroundImage(new Image(display,this.getClass().getResourceAsStream("/icons/splash.png"))); //this.setBackground(display.getSystemColor(SWT.COLOR_DARK_GRAY)); //this.setBackgroundMode(SWT.INHERIT_DEFAULT); c=new Label(this,SWT.None); c.setSize(800, 600); c.setLocation(0, 0); c.setImage(new Image(c.getDisplay(),this.getClass().getResourceAsStream("/icons/splash.png"))); fillbg(c.getParent(),this.getClass().getResourceAsStream("/icons/splash.png")); setSize(800, 600); setCenter(this); open(); setActive(); } @Override public void run() { try { Display.getDefault().syncExec(new Runnable() { public void run() { open(); //layout(); try { Thread.sleep(iSleep); } catch (InterruptedException e) { e.printStackTrace(); } closesplash(); } }); } catch (Exception e) { e.printStackTrace(); } } public static void setCenter(Shell shl) { int width = shl.getMonitor().getClientArea().width; int height = shl.getMonitor().getClientArea().height; int x = shl.getSize().x; int y = shl.getSize().y; if(x > width) { shl.getSize().x = width; } if(y > height) { shl.getSize().y = height; } shl.setLocation((width - x) / 2, (height - y) / 2); } @Override protected void checkSubclass () { //这个空函数不可少 解除不被子类化 } public Integer getiSleep() { return iSleep; } public void setiSleep(Integer iSleep) { this.iSleep = iSleep; } public void closesplash() { this.dispose(); } }