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import org.eclipse.jface.viewers.CellLabelProvider;
import org.eclipse.jface.viewers.ViewerCell;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.TreeEditor;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.FontMetrics;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.ProgressBar;
import org.eclipse.swt.widgets.TreeItem;
import internal.model.Resource;
import views.recomposition.model.RecompositionUE;
public class RecompositionSizeCellLabelProvider extends CellLabelProvider {
/**
* Constructeur de la classe <code>RecompositionSizeCellLabelProvider</code>.
*/
public RecompositionSizeCellLabelProvider() {
super();
}
@Override
public void update(final ViewerCell cell) {
final TreeItem item = (TreeItem) cell.getItem();
Resource res = (Resource) cell.getElement();
DisposeListener listener = new DisposeListener() {
public void widgetDisposed(final DisposeEvent e) {
if (item.getData("EDITOR") != null) {
TreeEditor editor = (TreeEditor) item.getData("EDITOR");
editor.getEditor().dispose();
editor.dispose();
}
}
};
if (item.getData("EDITOR") != null) {
TreeEditor editor = (TreeEditor) item.getData("EDITOR");
editor.getEditor().dispose();
editor.dispose();
}
if (item.getData("DISPOSELISTNER") != null) {
item.removeDisposeListener((DisposeListener) item.getData("DISPOSELISTNER"));
}
TreeEditor editor = new TreeEditor(item.getParent());
item.setData("EDITOR", editor);
Composite comp = new Composite(item.getParent(), SWT.NONE);
comp.setBackground(item.getParent().getBackground());
comp.setBackgroundMode(SWT.INHERIT_DEFAULT);
comp.setLayoutData(new GridData(SWT.LEFT, SWT.FILL, true, true, 1, 1));
// Layout
GridLayout gl = new GridLayout(1, true);
gl.marginHeight = 0;
gl.marginWidth = 0;
gl.marginTop = 0;
gl.marginBottom = 0;
comp.setLayout(gl);
createEditor(comp, res);
editor.grabHorizontal = true;
editor.setEditor(comp, item, 1);
item.addDisposeListener(listener);
item.setData("DISPOSELISTNER", listener);
}
/**
* La méthode <code>createEditor</code> crée le contenu pour la resource spécifiée.
* @param parent : Composite Parent
* @param res : resource (fichier ou répertoire ou media)
*/
private void createEditor(final Composite parent, final Resource res) {
if (res != null) {
if (res instanceof RecompositionUE) {
createUeEditor(parent, (RecompositionUE) res);
} else {
createOtherEditor(parent, res);
}
}
}
/**
* La méthode <code>createUeEditor</code> crée le contenu pour l'UE (progressBar).
* @param parent : Composite Parent
* @param ue : Media a recomposition
*/
private void createUeEditor(final Composite parent, final RecompositionUE ue) {
final ProgressBar progressBar = new ProgressBar(parent, SWT.HORIZONTAL);
// Affichage du text sur la barre de progression
progressBar.addPaintListener(new PaintListener() {
public void paintControl(final PaintEvent e) {
float sel = progressBar.getSelection();
float max = progressBar.getMaximum();
String string = String.format("%.1f%s", sel / max * 100., "%");
Point point = progressBar.getSize();
FontMetrics fontMetrics = e.gc.getFontMetrics();
int width = fontMetrics.getAverageCharWidth() * string.length();
int height = fontMetrics.getHeight();
e.gc.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
e.gc.drawString(string, (point.x - width) / 2, (point.y - height) / 2, true);
}
});
progressBar.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, true, false, 1, 1));
int max = (int) (ue.getType().getCapacite() / 1048576.0);
int sel = (int) (ue.getSize());
progressBar.setMaximum(max);
progressBar.setSelection(sel);
}
/**
* La méthode <code>createOtherEditor</code> crée le contenu pour tous les autres cas.
* @param parent : Composite Parent
* @param res : resource (fichier ou repertoire)
*/
private void createOtherEditor(final Composite parent, final Resource res) {
Label label = new Label(parent, SWT.NONE);
label.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, true, false, 1, 1));
label.setText(String.format("%.2f", res.getSize()));
}
} |
