Java tutorial
/******************************************************************************* * Copyright (c) 2010 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation *******************************************************************************/ package b600.emulator.parts; import java.io.IOException; import java.io.OutputStream; import java.io.PrintStream; import java.net.URL; import javax.annotation.PostConstruct; import javax.inject.Inject; import javax.inject.Named; import org.eclipse.core.runtime.FileLocator; import org.eclipse.core.runtime.Path; import org.eclipse.core.runtime.preferences.IEclipsePreferences; import org.eclipse.e4.core.di.annotations.Optional; import org.eclipse.e4.core.di.extensions.EventTopic; import org.eclipse.e4.core.di.extensions.Preference; import org.eclipse.e4.ui.di.Focus; import org.eclipse.e4.ui.di.UIEventTopic; import org.eclipse.e4.ui.model.application.MApplication; import org.eclipse.e4.ui.model.application.ui.advanced.MPerspective; import org.eclipse.e4.ui.model.application.ui.basic.MTrimmedWindow; import org.eclipse.e4.ui.model.application.ui.basic.MWindow; import org.eclipse.e4.ui.services.IServiceConstants; import org.eclipse.e4.ui.workbench.UIEvents.Perspective; import org.eclipse.e4.ui.workbench.modeling.IPartListener; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.swt.SWT; import org.eclipse.swt.events.ControlAdapter; import org.eclipse.swt.events.ControlEvent; import org.eclipse.swt.events.PaintEvent; import org.eclipse.swt.events.PaintListener; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.graphics.GC; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.graphics.ImageData; import org.eclipse.swt.graphics.RGB; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; import org.osgi.framework.Bundle; import org.osgi.framework.FrameworkUtil; import org.osgi.service.log.LogService; import org.osgi.service.prefs.BackingStoreException; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class B600Part { private static Logger LOGGER = LoggerFactory.getLogger(B600Part.class); private Image image; private Button button1; //@Inject //private LogService LOGGER; @Inject private MWindow window; @Inject @Named("math.random") private Object random; @Inject @Preference(nodePath = "b00.emulator.parts", value = "greeting") private String greeting; @Inject @Preference(nodePath = "b600.emulator.parts") private IEclipsePreferences prefs; @Inject MApplication application; @Inject MTrimmedWindow trimmedwindow; Label label, labelpref; int focuspageCount = 0; int paintCount = 0; private Shell shell; Text text; @PostConstruct public void createComposite(Composite parent) { shell = parent.getShell(); //parent.setLayout(new GridLayout(2, false)); createImage(parent); // parent.setBackgroundImage(image); // parent.setBackgroundMode(SWT.INHERIT_DEFAULT); label = new Label(parent, SWT.NONE); label.setText(greeting + " " + window.getLabel() + " " + random + " " + focuspageCount++); // button1 = new Button(parent, SWT.PUSH); LOGGER.debug("random :: {}", random); parent.addPaintListener(new PaintListener() { @Override public void paintControl(PaintEvent e) { e.gc.drawLine(10, 10, 100, 100); e.gc.drawText(Integer.toString(paintCount++), 110, 110); } }); /*parent.addControlListener(new ControlAdapter() { @Override public void controlResized(ControlEvent e) { //super.controlResized(e); shell.setSize(600, 400); } });*/ text = new Text(parent, SWT.MULTI); text.setBounds(200, 200, 350, 350); text.setBackground(parent.getDisplay().getSystemColor(SWT.COLOR_BLACK)); text.setForeground(parent.getDisplay().getSystemColor(SWT.COLOR_WHITE)); OutputStream os = new OutputStream() { @Override public void write(int b) throws IOException { text.append(Character.toString((char) b)); } }; System.setOut(new PrintStream(os)); for (int i = 0; i < 10; i++) { // LOGGER.log(LogService.LOG_INFO, "Hello Console "+i ); LOGGER.debug("Hello Console {} !!", i); } } private void createImage(Composite parent) { Bundle bundle = FrameworkUtil.getBundle(B600Part.class); URL url = FileLocator.find(bundle, new Path("icons/b600_bg.png"), null); ImageDescriptor imageDcr = ImageDescriptor.createFromURL(url); this.image = imageDcr.createImage(); this.image = resizeImage(image, parent); } private Image resizeImage(Image orgimage, Composite parent) { Image scaled = new Image(Display.getDefault(), parent.getShell().getClientArea().width, parent.getShell().getClientArea().height); GC gc = new GC(scaled); gc.setAntialias(SWT.ON); gc.setInterpolation(SWT.HIGH); gc.drawImage(orgimage, 0, 0, orgimage.getBounds().width, orgimage.getBounds().height, 0, 0, parent.getShell().getClientArea().width, parent.getShell().getClientArea().height); gc.dispose(); orgimage.dispose(); return scaled; } @Focus public void setFocus() { } @Inject @Optional public void setSelection(@Named(IServiceConstants.ACTIVE_SELECTION) Object selection) { if (selection != null) { if (selection instanceof ISelection) { label.setText(selection.toString()); } } } @Inject @Optional public void receiveEvent(@UIEventTopic("rainbow/color") String data) throws BackingStoreException { // label.setText(data + " " +paintCount); prefs.put("greeting", "I like " + data); prefs.sync(); } @Inject @Optional public void setText(@Preference(nodePath = "b600.emulator.parts", value = "greeting") String text) { if (text != null && label != null && !label.isDisposed()) { labelpref.setText(text); } } }