package org.erlide.ui.prefs;
import java.util.Collection;
import java.util.Set;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.IDoubleClickListener;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.ILabelProviderListener;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerComparator;
import org.eclipse.jface.viewers.ViewerFilter;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.dialogs.SelectionStatusDialog;
import org.erlide.ui.internal.ErlideUIPlugin;
import org.erlide.ui.util.StatusInfo;
public class ProjectSelectionDialog extends SelectionStatusDialog {
final static class OurLabelProvider implements ILabelProvider {
@Override
public Image getImage(final Object element) {
return null;
}
@Override
public String getText(final Object element) {
final IProject p = (IProject) element;
return p.getName();
}
@Override
public void addListener(final ILabelProviderListener listener) {
}
@Override
public void dispose() {
}
@Override
public boolean isLabelProperty(final Object element, final String property) {
return true;
}
@Override
public void removeListener(final ILabelProviderListener listener) {
}
}
final class OurContentProvider implements IStructuredContentProvider {
@Override
public void dispose() {
}
@Override
public void inputChanged(final Viewer viewer, final Object oldInput,
final Object newInput) {
}
@Override
public Object[] getElements(final Object inputElement) {
return fErlProjects.toArray();
}
}
// the visual selection widget group
private TableViewer fTableViewer;
private final Collection<IProject> fErlProjects;
private final Set<IProject> fProjectsWithSpecifics;
// sizing constants
private final static int SIZING_SELECTION_WIDGET_HEIGHT = 250;
private final static int SIZING_SELECTION_WIDGET_WIDTH = 300;
private static final String DIALOG_SETTINGS = "org.erlide.ui.dialogs.ProjectSelectionDialog"; //$NON-NLS-1$
private final static String DIALOG_SETTINGS_SHOW_ALL = "ProjectSelectionDialog.show_all"; //$NON-NLS-1$
private final ViewerFilter fFilter;
public ProjectSelectionDialog(final Shell parentShell,
final Collection<IProject> erlProjects,
final Set<IProject> projectsWithSpecifics) {
super(parentShell);
setTitle("Project Specific Configuration");
setMessage("&Select the project to configure");
fErlProjects = erlProjects;
fProjectsWithSpecifics = projectsWithSpecifics;
fFilter = new ViewerFilter() {
@Override
public boolean select(final Viewer viewer, final Object parentElement,
final Object element) {
return fProjectsWithSpecifics.contains(element);
}
};
}
@Override
protected Control createDialogArea(final Composite parent) {
// page group
final Composite composite = (Composite) super.createDialogArea(parent);
final Font font = parent.getFont();
composite.setFont(font);
createMessageArea(composite);
fTableViewer = new TableViewer(composite, SWT.H_SCROLL | SWT.V_SCROLL
| SWT.BORDER);
fTableViewer.addSelectionChangedListener(new ISelectionChangedListener() {
@Override
public void selectionChanged(final SelectionChangedEvent event) {
doSelectionChanged(((IStructuredSelection) event.getSelection())
.toArray());
}
});
fTableViewer.addDoubleClickListener(new IDoubleClickListener() {
@Override
public void doubleClick(final DoubleClickEvent event) {
okPressed();
}
});
final GridData data = new GridData(SWT.FILL, SWT.FILL, true, true);
data.heightHint = SIZING_SELECTION_WIDGET_HEIGHT;
data.widthHint = SIZING_SELECTION_WIDGET_WIDTH;
fTableViewer.getTable().setLayoutData(data);
fTableViewer.setLabelProvider(new OurLabelProvider());
fTableViewer.setContentProvider(new OurContentProvider());
fTableViewer.setComparator(new ViewerComparator());
fTableViewer.getControl().setFont(font);
final Button checkbox = new Button(composite, SWT.CHECK);
checkbox.setText("Show only &projects with project specific settings");
checkbox.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, true, false));
checkbox.addSelectionListener(new SelectionListener() {
@Override
public void widgetSelected(final SelectionEvent e) {
updateFilter(((Button) e.widget).getSelection());
}
@Override
public void widgetDefaultSelected(final SelectionEvent e) {
updateFilter(((Button) e.widget).getSelection());
}
});
final IDialogSettings dialogSettings = ErlideUIPlugin.getDefault()
.getDialogSettingsSection(DIALOG_SETTINGS);
final boolean doFilter = !dialogSettings.getBoolean(DIALOG_SETTINGS_SHOW_ALL)
&& !fProjectsWithSpecifics.isEmpty();
checkbox.setSelection(doFilter);
updateFilter(doFilter);
fTableViewer.setInput(new Object());
doSelectionChanged(new Object[0]);
Dialog.applyDialogFont(composite);
return composite;
}
protected void updateFilter(final boolean selected) {
if (selected) {
fTableViewer.addFilter(fFilter);
} else {
fTableViewer.removeFilter(fFilter);
}
final IDialogSettings dialogSettings = ErlideUIPlugin.getDefault()
.getDialogSettingsSection(DIALOG_SETTINGS);
dialogSettings.put(DIALOG_SETTINGS_SHOW_ALL, !selected);
}
void doSelectionChanged(final Object[] objects) {
if (objects.length != 1) {
updateStatus(new StatusInfo(IStatus.ERROR, "")); //$NON-NLS-1$
setSelectionResult(null);
} else {
updateStatus(new StatusInfo());
setSelectionResult(objects);
}
}
@Override
protected void computeResult() {
}
}