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package org.eclipse.cdt.internal.ui.cview;
/*
* (c) Copyright IBM Corp. 2000, 2001.
* All Rights Reserved.
*/
import java.io.StringWriter;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.actions.SelectionProviderAction;
import org.eclipse.ui.dialogs.ListSelectionDialog;
import org.eclipse.cdt.ui.CUIPlugin;
//import org.eclipse.cdt.core.model.CElementFilters;
/**
* The FilterAction is the class that adds the filter views to a PackagesView.
*/
class FilterSelectionAction extends SelectionProviderAction {
private CView cview;
private Shell shell;
/**
* Create a new filter action
* @param shell the shell that will be used for the list selection
* @param packages the PackagesExplorerPart
* @param label the label for the action
*/
public FilterSelectionAction(Shell shell, CView cview, String label) {
super(cview.getViewer(), label);
setToolTipText("Filter Selection Action");
setEnabled(true);
this.shell= shell;
this.cview= cview;
}
/**
* Implementation of method defined on <code>IAction</code>.
*/
public void run() {
CPatternFilter filter= cview.getPatternFilter();
FiltersContentProvider contentProvider= new FiltersContentProvider(filter);
ListSelectionDialog dialog =
new ListSelectionDialog(
shell,
cview.getViewer(),
contentProvider,
new LabelProvider(),
"Select the filters to apply (matching files will be hidden):");
dialog.setInitialSelections(contentProvider.getInitialSelections());
dialog.setTitle("C/C++ File Filters");
dialog.open();
if (dialog.getReturnCode() == Window.OK) {
Object[] results= dialog.getResult();
String[] selectedPatterns= new String[results.length];
System.arraycopy(results, 0, selectedPatterns, 0, results.length);
filter.setPatterns(selectedPatterns);
CElementFilters.setPatterns(selectedPatterns);
saveInPreferences(selectedPatterns);
TreeViewer viewer= cview.getViewer();
viewer.getControl().setRedraw(false);
viewer.refresh();
viewer.getControl().setRedraw(true);
}
}
/**
* Save the supplied patterns in the preferences for the UIPlugin.
* They are saved in the format patern,pattern,.
*/
private void saveInPreferences(String[] patterns) {
CUIPlugin plugin= CUIPlugin.getDefault();
StringWriter writer= new StringWriter();
for (int i = 0; i < patterns.length; i++) {
writer.write(patterns[i]);
writer.write(CPatternFilter.COMMA_SEPARATOR);
}
plugin.getPreferenceStore().setValue(
CPatternFilter.FILTERS_TAG, writer.toString());
}
}
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