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import java.util.ArrayList;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.ScrolledComposite;
import org.eclipse.swt.events.ExpandEvent;
import org.eclipse.swt.events.ExpandListener;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.ExpandBar;
import org.eclipse.swt.widgets.ExpandItem;
import org.eclipse.swt.widgets.Shell;
public class Test5 {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
new Test5(shell);
shell.setMaximized(true);
shell.setLayout(new FillLayout());
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
private ScrolledComposite scrolledComp = null;
// Ces variables permettent de gérer les niveaux de navigation
private ArrayList<ExpandBar> expandBarreTab = new ArrayList<ExpandBar>();
private ArrayList<Composite> compositeTab = new ArrayList<Composite>();
private ArrayList<ExpandItem> expandItemTab = new ArrayList<ExpandItem>();
private int position = 0;
public Test5(final Composite parent) {
// initialisation
scrolledComp = new ScrolledComposite(parent, SWT.V_SCROLL);
scrolledComp.setData(0);
createBar(0, 0, "Test1");
createBar(1, 0, "Test11");
createBar(1, 0, "Test12");
createBar(2, 2, "Test121");
createBar(2, 2, "Test122");
createBar(2, 2, "Test123");
createBar(1, 0, "Test13");
createBar(0, 0, "Test2");
createBar(0, 0, "Test3");
createBar(0, 0, "Test4");
createBar(0, 0, "Test5");
createBar(0, 0, "Test6");
createBar(1, 11, "Test61");
createBar(1, 11, "Test62");
createBar(2, 13, "Test621");
createBar(2, 13, "Test622");
createBar(2, 13, "Test623");
createBar(3, 16, "Test6231");
createBar(3, 16, "Test6231");
createBar(0, 11, "Test63");
// Mise en place des Listeners liés à la barre de défilement
for (int i = 0; i < expandBarreTab.size(); i++) {
position = i;
final int Tprincipal = compositeTab.get(position).computeSize(SWT.DEFAULT, SWT.DEFAULT).y;
expandItemTab.get(position).setHeight(Tprincipal);
expandBarreTab.get(position).addExpandListener(
new ExpandListener() {
public void itemCollapsed(ExpandEvent event) {
// expandItemTab.get(position).setHeight(Tprincipal);
}
public void itemExpanded(ExpandEvent event) {
String eventString = event.item.toString();
eventString = eventString.substring(12, eventString.length() - 1);
int positionEvent = itemPosition(eventString);
int positionParent = 0;
int newSize = compositeTab.get(positionEvent).computeSize(SWT.DEFAULT, SWT.DEFAULT).y;
Composite parcours = expandBarreTab.get(positionEvent).getParent();
while (!(parcours.getParent() instanceof org.eclipse.swt.widgets.Shell)) {
positionParent = (Integer) expandBarreTab.get(positionEvent).getParent().getData();
System.out.println(expandItemTab.get(positionParent).getText() + ": " + (compositeTab.get(positionEvent) .computeSize(SWT.DEFAULT, SWT.DEFAULT).y) + " - " + newSize);
expandItemTab.get(positionEvent).setHeight(compositeTab.get(positionParent).computeSize(SWT.DEFAULT,SWT.DEFAULT).y + newSize);
compositeTab.get(positionEvent).layout(true, true);
// Incrémentation - on remonte l'arbre
positionEvent = (Integer) expandBarreTab
.get(positionEvent).getParent()
.getData();
parcours = parcours.getParent();
}
System.out.println();
}
});
}
scrolledComp.setContent(expandBarreTab.get(0));
scrolledComp.setExpandHorizontal(true);
scrolledComp.setExpandVertical(true);
scrolledComp.setMinSize(expandBarreTab.get(0).computeSize(SWT.DEFAULT,
SWT.DEFAULT));
/* Jump to the end */
scrolledComp.setOrigin(0, scrolledComp.getSize().y);
}
/**
* Permet de créer une nouvelle Bar
* @param level niveau de positionnement de la Bar
* @param parentPosition emplacement dans le tableau des Bar du parent
* @param tabName nom de la Bar
*/
public void createBar(int level, int parentPosition, String tabName) {
// Création d'une nouvelle expandBarre et mise en forme
if (level == 0 && parentPosition == 0) {
expandBarreTab.add(new ExpandBar(scrolledComp, SWT.NONE));
expandBarreTab.get(level).setSpacing(4);
} else {
expandBarreTab.add(new ExpandBar(compositeTab.get(parentPosition),SWT.NONE));
expandBarreTab.get(expandBarreTab.size() - 1).setLayoutData( new GridData(GridData.FILL, GridData.FILL, true, true, 2, 1));
expandBarreTab.get(expandBarreTab.size() - 1).setSpacing(4);
}
position = expandBarreTab.size() - 1;
// Mise en place des composants
if (level == 0 && parentPosition == 0) {
compositeTab
.add(new Composite(expandBarreTab.get(level), SWT.NONE));
compositeTab.get(position).setLayout(new GridLayout(2, true));
compositeTab.get(position).setData(position);
expandItemTab.add(new ExpandItem(expandBarreTab.get(level),
SWT.NONE, 0));
expandItemTab.get(position).setText(tabName);
expandItemTab.get(position).setControl(compositeTab.get(position));
} else {
compositeTab.add(new Composite(expandBarreTab.get(position),
SWT.NONE));
compositeTab.get(position).setLayout(new GridLayout(2, true));
compositeTab.get(position).setData(position);
expandItemTab.add(new ExpandItem(expandBarreTab.get(position),
SWT.NONE, 0));
expandItemTab.get(position).setText(tabName);
expandItemTab.get(position).setControl(compositeTab.get(position));
}
}
/**
* Permet de savoir le nombre d'enfants que possède un composite
*
* @param composite
* composite parent
* @return int nombre d'enfants
*/
public int numberOfChildrens(Composite composite) {
int result = 0;
Control[] children = composite.getChildren();
for (int i = 0; i < children.length; i++) {
result++;
}
return result;
}
public int itemPosition(String name) {
int result = -1;
for (int i = 0; i < expandItemTab.size(); i++) {
if (name.equals(expandItemTab.get(i).getText())) {
result = i;
}
}
return result;
}
} |
Redimensionnement ExpandBar en cascade
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