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/*******************************************************************************
* Copyright (c) 2006 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.wst.validation.internal.ui;
import java.util.Map;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.viewers.ComboViewer;
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.StructuredSelection;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.wst.validation.internal.ValidatorMetaData;
import org.eclipse.wst.validation.internal.delegates.ValidatorDelegateDescriptor;
import org.eclipse.wst.validation.internal.delegates.ValidatorDelegatesRegistry;
/**
* Dialog used to allow the user to select a validator delegate from the list of
* registered delegates for a given delegating validator.
*/
public class DelegatingValidatorPreferencesDialog extends Dialog
{
/**
* The delegating validator's descriptor.
*/
private ValidatorMetaData delegatingValidatorDescriptor;
/**
* The selected validator delegate ID.
*/
private String delegateID;
/**
* Constructs the dialog on the given shell.
*
* @param parentShell
* the dialog's parent. Must not be null.
* @param targetID
* the delegating validator's id
*
* @param delegateID
* the ID of the currently selected validator delegate.
*/
protected DelegatingValidatorPreferencesDialog(Shell parentShell, ValidatorMetaData vmd, String delegateID)
{
super(parentShell);
delegatingValidatorDescriptor = vmd;
this.delegateID = delegateID;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
*/
protected Control createDialogArea(Composite parent)
{
super.createDialogArea(parent);
getShell().setText(ResourceHandler.getExternalizedMessage(ResourceConstants.DELEGATES_DIALOG_TITLE));
GridLayout layout = new GridLayout();
parent.setLayout(layout);
Label label = new Label(parent, SWT.NONE);
GridData labelData = new GridData(SWT.FILL, SWT.CENTER, true, false);
labelData.widthHint = 250;
label.setLayoutData(labelData);
label.setFont(JFaceResources.getFontRegistry().getBold(JFaceResources.DIALOG_FONT));
String delegatingValidatorName = delegatingValidatorDescriptor.getValidatorDisplayName();
label.setText(delegatingValidatorName);
Label separator = new Label(parent, SWT.SEPARATOR | SWT.HORIZONTAL);
GridData separatorData = new GridData(SWT.FILL, SWT.CENTER, true, false);
separator.setLayoutData(separatorData);
Composite group = new Composite(parent, SWT.NONE);
GridData groupGridData = new GridData(SWT.FILL, SWT.CENTER, true, false);
group.setLayoutData(groupGridData);
GridLayout groupLayout = new GridLayout(2, false);
group.setLayout(groupLayout);
Label comboLabel = new Label(group, SWT.NONE);
comboLabel.setLayoutData(new GridData());
comboLabel.setText(ResourceHandler.getExternalizedMessage(ResourceConstants.DELEGATES_COMBO_LABEL));
Combo combo = new Combo(group, SWT.NONE);
GridData comboGridData = new GridData(SWT.FILL, SWT.CENTER, true, false);
combo.setLayoutData(comboGridData);
final ComboViewer comboViewer = new ComboViewer(combo);
comboViewer.setContentProvider(new DelegatesContentProvider());
comboViewer.setLabelProvider(new DelegatesLabelProvider());
String targetID = delegatingValidatorDescriptor.getValidatorUniqueName();
comboViewer.addSelectionChangedListener(new ISelectionChangedListener()
{
public void selectionChanged(org.eclipse.jface.viewers.SelectionChangedEvent event)
{
IStructuredSelection selection = (IStructuredSelection) comboViewer.getSelection();
setDelegateID(((ValidatorDelegateDescriptor) selection.getFirstElement()).getId());
}
});
comboViewer.setInput(targetID);
ValidatorDelegateDescriptor selected = ValidatorDelegatesRegistry.getInstance().getDescriptor(targetID, delegateID);
if (selected != null)
{
comboViewer.setSelection(new StructuredSelection(new Object[] { selected }));
}
Label endSeparator = new Label(parent, SWT.SEPARATOR | SWT.HORIZONTAL);
GridData endSeparatorData = new GridData(SWT.FILL, SWT.CENTER, true, false);
endSeparator.setLayoutData(endSeparatorData);
return parent;
}
/**
* Provides contents for the delegate validators combo box.
*/
private final class DelegatesContentProvider implements IStructuredContentProvider
{
public void dispose()
{
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
*/
public Object[] getElements(Object inputElement)
{
String targetID = (String) inputElement;
Map delegatesByID = ValidatorDelegatesRegistry.getInstance().getDelegateDescriptors(targetID);
if (delegatesByID == null)
{
return new Object[] {};
}
return delegatesByID.values().toArray();
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer,
* java.lang.Object, java.lang.Object)
*/
public void inputChanged(Viewer viewer, Object oldInput, Object newInput)
{
}
}
/**
* Provides the labels/images for the delegate validator combo box
*
* @author vbaciul
*
*/
private final class DelegatesLabelProvider implements ILabelProvider
{
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.IBaseLabelProvider#addListener(org.eclipse.jface.viewers.ILabelProviderListener)
*/
public void addListener(ILabelProviderListener listener)
{
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose()
*/
public void dispose()
{
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.ILabelProvider#getImage(java.lang.Object)
*/
public Image getImage(Object element)
{
return null;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.ILabelProvider#getText(java.lang.Object)
*/
public String getText(Object element)
{
return ((ValidatorDelegateDescriptor) element).getName();
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.IBaseLabelProvider#isLabelProperty(java.lang.Object,
* java.lang.String)
*/
public boolean isLabelProperty(Object element, String property)
{
return false;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.IBaseLabelProvider#removeListener(org.eclipse.jface.viewers.ILabelProviderListener)
*/
public void removeListener(ILabelProviderListener listener)
{
}
}
/*
* Provides the ID of the currently selected validator delegate ID.
*/
public String getDelegateID()
{
return delegateID;
}
/**
* Sets the currently selected validator delegate ID.
*
* @param delegateID
*/
private void setDelegateID(String delegateID)
{
this.delegateID = delegateID;
}
}
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