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package org.eclipse.papyrus.customization.properties.providers;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.papyrus.infra.emf.providers.EMFGraphicalContentProvider;
import org.eclipse.papyrus.infra.widgets.editors.AbstractEditor;
import org.eclipse.papyrus.infra.widgets.editors.BooleanToggle;
import org.eclipse.papyrus.infra.widgets.editors.ICommitListener;
import org.eclipse.papyrus.infra.widgets.providers.AbstractTreeFilter;
import org.eclipse.papyrus.views.properties.environment.PropertyEditorType;
import org.eclipse.papyrus.views.properties.ui.PropertyEditor;
import org.eclipse.papyrus.views.properties.widgets.layout.PropertiesLayout;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
public class PropertyEditorTypeContentProvider extends EMFGraphicalContentProvider implements ICommitListener {
private PropertyEditor source;
private BooleanToggle filterButton;
private PropertyEditorTypeViewerFilter currentFilter;
public PropertyEditorTypeContentProvider(IStructuredContentProvider semanticProvider, PropertyEditor source) {
super(semanticProvider, source.eResource().getResourceSet(), getHistoryId(source));
this.source = source;
this.currentFilter = new PropertyEditorTypeViewerFilter();
}
private static String getHistoryId(PropertyEditor source) {
return "history_propertyEditorType_" + source.eResource().getURI();
}
@Override
public void createBefore(Composite parent) {
Composite self = new Composite(parent, SWT.NONE);
self.setLayout(new PropertiesLayout());
filterButton = new BooleanToggle(self);
filterButton.setText("Filter");
filterButton.setValue(currentFilter.getFilter());
filterButton.addCommitListener(this);
super.createBefore(self);
}
@Override
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
if(super.viewer != null) {
super.viewer.removeFilter(currentFilter);
}
super.inputChanged(viewer, oldInput, newInput);
super.viewer.addFilter(currentFilter);
}
@Override
public void commit(AbstractEditor editor) {
currentFilter.setFilter(filterButton.getValue());
if(super.viewer != null) {
super.viewer.refresh();
}
}
private class PropertyEditorTypeViewerFilter extends AbstractTreeFilter {
private boolean filter = true;
@Override
public boolean isVisible(Viewer viewer, Object parentElement, Object element) {
if(!filter) {
return true;
}
Object adaptedValue = getAdaptedValue(element);
if(adaptedValue instanceof PropertyEditorType) {
PropertyEditorType editorType = (PropertyEditorType)adaptedValue;
if(source.getProperty() == null) {
return true;
}
return editorType.getType() == source.getProperty().getType();
}
return false;
}
public boolean getFilter() {
return filter;
}
public void setFilter(boolean filter) {
this.filter = filter;
clearCache();
}
}
}
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