Difference between revisions of "GEF/GEF4/Cloudio"

public static void main(String [] args) {
  final Display display = new Display();
  final Shell shell = new Shell(display);
  TagCloud cloud = new TagCloud(shell, SWT.NONE);
 
  // Generate some dummy words - color, weight and fontdata must
  // always be defined.
  List<Word> words = new ArrayList<Word>();
  Word w = new Word("Hello");
  w.setColor(display.getSystemColor(SWT.COLOR_DARK_CYAN));
  w.weight = 1;
  w.setFontData(cloud.getFont().getFontData().clone());
  words.add(w);
  w = new Word("Cloudio");
  w.setColor(display.getSystemColor(SWT.COLOR_DARK_GREEN));
  w.setFontData(cloud.getFont().getFontData().clone());
  w.weight = 0.5;
  w.angle = -45;
  words.add(w);
 
  shell.setBounds(50,50, 300, 300);
  cloud.setBounds(0,0, shell.getBounds().width, shell.getBounds().height);
 
  // Assign the list of words to the cloud:
  cloud.setWords(words, null);
  shell.open();
  while (!shell.isDisposed()) {
    if (!display.readAndDispatch()) display.sleep();
  }
  display.dispose();
}

  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.List;
 
  import org.eclipse.jface.viewers.BaseLabelProvider;
  import org.eclipse.jface.viewers.ISelectionChangedListener;
  import org.eclipse.jface.viewers.IStructuredContentProvider;
  import org.eclipse.jface.viewers.IStructuredSelection;
  import org.eclipse.jface.viewers.SelectionChangedEvent;
  import org.eclipse.jface.viewers.StructuredSelection;
  import org.eclipse.jface.viewers.Viewer;
  import org.eclipse.swt.SWT;
  import org.eclipse.swt.graphics.Color;
  import org.eclipse.swt.graphics.Font;
  import org.eclipse.swt.graphics.FontData;
  import org.eclipse.swt.widgets.Display;
  import org.eclipse.swt.widgets.Shell;
  import org.eclipse.zest.cloudio.ICloudLabelProvider;
  import org.eclipse.zest.cloudio.TagCloud;
  import org.eclipse.zest.cloudio.TagCloudViewer;
 
  public class TagCloudViewerSnippet {
 
    static class CustomLabelProvider extends BaseLabelProvider implements ICloudLabelProvider {
 
        private Font font;
 
        public CustomLabelProvider(Font font) {
            this.font = font;
        }
 
        @Override
        public String getLabel(Object element) {
            return element.toString();
        }
 
        @Override
        public double getWeight(Object element) {
            return Math.random();
        }
 
        @Override
        public Color getColor(Object element) {
            return Display.getDefault().getSystemColor(SWT.COLOR_GREEN);
        }
 
        @Override
        public FontData[] getFontData(Object element) {
            return font.getFontData();
        }
 
        @Override
        public float getAngle(Object element) {
            return (float) (-90 + Math.random() * 180);
        }
 
        @Override
        public String getToolTip(Object element) {
            return element.toString();
        }
    }
 
    public static void main(String [] args) {
        final Display display = new Display();
        final Shell shell = new Shell(display);
        TagCloud cloud = new TagCloud(shell, SWT.NONE);
 
        final TagCloudViewer viewer = new TagCloudViewer(cloud);
 
        // A simple content provider for a list of elements 
        viewer.setContentProvider(new IStructuredContentProvider() {
 
            @Override
            public void dispose() { }
 
            @Override
            public void inputChanged(Viewer viewer, Object oldInput,
                    Object newInput) {}
 
            @Override
            public Object[] getElements(Object inputElement) {
                return ((List<?>)inputElement).toArray();
            }
 
        });
 
        // A simple label provider (see above)
        viewer.setLabelProvider(new CustomLabelProvider(cloud.getFont()));
 
        // Demo of an selection listener
        viewer.addSelectionChangedListener(new ISelectionChangedListener() {
 
            @Override
            public void selectionChanged(SelectionChangedEvent event) {
                IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
                System.out.println("Selection: " + selection);
            }
        });
 
        // Demo data
        List<String> data = new ArrayList<String>();
        data.add("Hello");
        data.add("World");
        data.add("Hello Cloudio");
 
        shell.setBounds(50,50, 300, 300);
        cloud.setBounds(0,0, shell.getBounds().width, shell.getBounds().height);
 
        // Set the input of the viewer
        viewer.setInput(data);
 
        // Set initial selection:
        viewer.setSelection(new StructuredSelection(Arrays.asList("Hello Cloudio")));
 
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch()) display.sleep();
        }
        display.dispose();
    }
  }