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package org.openembedded.bc.ui.wizards.variable;
import java.util.Comparator;
import java.util.Map;
import org.eclipse.jface.viewers.ILabelProviderListener;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerFilter;
import org.eclipse.jface.viewers.ViewerSorter;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.Text;
import org.openembedded.bc.ui.wizards.FiniteStateWizardPage;
/**
* The wizard page for the Variable Wizard.
* @author kgilmer
*
*/
public class VariablePage extends FiniteStateWizardPage {
private Text txtName;
private Text txtValue;
private TableViewer viewer;
private TableColumn c1;
private TableColumn c2;
protected VariablePage(Map model) {
super("BitBake Commander", model);
setTitle("BitBake Variable Viewer");
setDescription("Sort and fitler global BitBake variables by name or value.");
}
@Override
public void createControl(Composite parent) {
Composite top = new Composite(parent, SWT.None);
top.setLayout(new GridLayout(2, true));
top.setLayoutData(new GridData(GridData.FILL_BOTH));
ValidationListener listener = new ValidationListener();
txtName = new Text(top, SWT.BORDER);
txtName.addModifyListener(listener);
txtName.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
txtValue = new Text(top, SWT.BORDER);
txtValue.addModifyListener(listener);
txtValue.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
viewer = new TableViewer(top);
Table table = viewer.getTable();
table.setLinesVisible(true);
table.setHeaderVisible(true);
GridData data = new GridData(SWT.FILL, SWT.FILL, true, true);
data.heightHint = 200;
data.horizontalSpan = 2;
table.setLayoutData(data);
c1 = new TableColumn(table, SWT.NONE);
c1.setText("Name");
c1.setWidth(200);
c1.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent event) {
((VariableViewerSorter) viewer.getSorter()).doSort(0);
viewer.refresh();
}
});
c2 = new TableColumn(table, SWT.NONE);
c2.setText("Value");
c2.setWidth(200);
c2.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent event) {
((VariableViewerSorter) viewer.getSorter()).doSort(1);
viewer.refresh();
}
});
viewer.setContentProvider(new VariableContentProvider());
viewer.setLabelProvider(new VariableLabelProvider());
viewer.setSorter(new VariableViewerSorter());
viewer.setFilters(new ViewerFilter[] {new MapViewerFilter()});
setControl(top);
}
@Override
public void pageCleanup() {
}
@Override
public void pageDisplay() {
viewer.setInput(model);
}
@Override
protected void updateModel() {
viewer.refresh();
}
@Override
protected boolean validatePage() {
return true;
}
/**
* A content provider for the variable wizard dialog.
* @author kgilmer
*
*/
private class VariableContentProvider implements IStructuredContentProvider {
public Object[] getElements(Object inputElement) {
return model.keySet().toArray();
}
public void dispose() {
}
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
}
}
/**
* A label provider for variable wizard dialog.
* @author kgilmer
*
*/
private class VariableLabelProvider implements ITableLabelProvider {
public Image getColumnImage(Object element, int columnIndex) {
return null;
}
public String getColumnText(Object element, int columnIndex) {
String val;
switch (columnIndex) {
case 0:
val = element.toString();
break;
case 1:
val = (String) model.get(element);
break;
default:
val = "";
break;
}
return val;
}
public void addListener(ILabelProviderListener listener) {
}
public void dispose() {
}
public boolean isLabelProperty(Object element, String property) {
return false;
}
public void removeListener(ILabelProviderListener listener) {
}
}
/**
*
* A tableviewer sorter found on the internet.
*
*/
class VariableViewerSorter extends ViewerSorter {
private static final int ASCENDING = 0;
private static final int DESCENDING = 1;
private int column;
private int direction;
public void doSort(int column) {
if (column == this.column) {
// Same column as last sort; toggle the direction
direction = 1 - direction;
} else {
// New column; do an ascending sort
this.column = column;
direction = ASCENDING;
}
}
public int compare(Viewer viewer, Object e1, Object e2) {
int rc = 0;
Comparator c = this.getComparator();
// Determine which column and do the appropriate sort
switch (column) {
case 0:
rc = c.compare(e1, e2);
break;
case 1:
rc = c.compare(model.get(e1), model.get(e2));
break;
}
// If descending order, flip the direction
if (direction == DESCENDING)
rc = -rc;
return rc;
}
}
/**
* A filter for the name/value model.
* @author kgilmer
*
*/
private class MapViewerFilter extends ViewerFilter {
public MapViewerFilter() {
}
@Override
public boolean select(Viewer viewer, Object parentElement, Object element) {
String keyFilter = txtName.getText();
String valFilter = txtValue.getText();
String elem = (String) element;
String val = (String) model.get(element);
if (keyFilter.length() > 0 && elem.indexOf(keyFilter) == -1 ) {
return false;
}
if (valFilter.length() > 0 && val.indexOf(valFilter) == -1 ) {
return false;
}
return true;
}
}
}
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