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package org.eclipse.jface.tests.viewers;
import org.eclipse.jface.*;
import org.eclipse.jface.util.Assert;
import org.eclipse.jface.viewers.*;
import java.util.*;
public class TestModelContentProvider implements ITestModelListener, IStructuredContentProvider, ITreeContentProvider {
Viewer fViewer;
public void dispose() {
}
protected void doInsert(TestModelChange change) {
if (fViewer instanceof ListViewer) {
if (change.getParent() != null && change.getParent().equals(fViewer.getInput())) {
((ListViewer) fViewer).add(change.getChildren());
}
}
else if (fViewer instanceof TableViewer) {
if (change.getParent() != null && change.getParent().equals(fViewer.getInput())) {
((TableViewer) fViewer).add(change.getChildren());
}
}
else if (fViewer instanceof AbstractTreeViewer) {
((AbstractTreeViewer) fViewer).add(change.getParent(), change.getChildren());
}
else {
Assert.isTrue(false, "Unknown kind of viewer");
}
}
protected void doNonStructureChange(TestModelChange change) {
if (fViewer instanceof StructuredViewer) {
((StructuredViewer) fViewer).update(change.getParent(), new String[] { IBasicPropertyConstants.P_TEXT });
}
else {
Assert.isTrue(false, "Unknown kind of viewer");
}
}
protected void doRemove(TestModelChange change) {
if (fViewer instanceof ListViewer) {
((ListViewer) fViewer).remove(change.getChildren());
}
else if (fViewer instanceof TableViewer) {
((TableViewer) fViewer).remove(change.getChildren());
}
else if (fViewer instanceof AbstractTreeViewer) {
((AbstractTreeViewer) fViewer).remove(change.getChildren());
}
else {
Assert.isTrue(false, "Unknown kind of viewer");
}
}
protected void doStructureChange(TestModelChange change) {
if (fViewer instanceof StructuredViewer) {
((StructuredViewer) fViewer).refresh(change.getParent());
}
else {
Assert.isTrue(false, "Unknown kind of viewer");
}
}
public Object[] getChildren(Object element) {
TestElement testElement = (TestElement) element;
int count = testElement.getChildCount();
TestElement[] children = new TestElement[count];
for (int i = 0; i < count; ++i)
children[i] = testElement.getChildAt(i);
return children;
}
public Object[] getElements(Object element) {
return getChildren(element);
}
public Object getParent(Object element) {
return ((TestElement) element).getContainer();
}
public boolean hasChildren(Object element) {
return ((TestElement) element).getChildCount() > 0;
}
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
fViewer = viewer;
TestElement oldElement = (TestElement) oldInput;
if (oldElement != null) {
oldElement.getModel().removeListener(this);
}
TestElement newElement = (TestElement) newInput;
if (newElement != null) {
newElement.getModel().addListener(this);
}
}
public boolean isDeleted(Object element) {
return ((TestElement) element).isDeleted();
}
public void testModelChanged(TestModelChange change) {
switch (change.getKind()) {
case TestModelChange.INSERT:
doInsert(change);
break;
case TestModelChange.REMOVE:
doRemove(change);
break;
case TestModelChange.STRUCTURE_CHANGE:
doStructureChange(change);
break;
case TestModelChange.NON_STRUCTURE_CHANGE:
doNonStructureChange(change);
break;
default:
throw new IllegalArgumentException("Unknown kind of change");
}
StructuredSelection selection = new StructuredSelection(change.getChildren());
if ((change.getModifiers() & TestModelChange.SELECT) != 0) {
((StructuredViewer) fViewer).setSelection(selection);
}
if ((change.getModifiers() & TestModelChange.REVEAL) != 0) {
Object element = selection.getFirstElement();
if (element != null) {
((StructuredViewer) fViewer).reveal(element);
}
}
}
}
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