/* ******************************************************************************
* Copyright (c) 2006-2012 XMind Ltd. and others.
*
* This file is a part of XMind 3. XMind releases 3 and
* above are dual-licensed under the Eclipse Public License (EPL),
* which is available at http://www.eclipse.org/legal/epl-v10.html
* and the GNU Lesser General Public License (LGPL),
* which is available at http://www.gnu.org/licenses/lgpl.html
* See http://www.xmind.net/license.html for details.
*
* Contributors:
* XMind Ltd. - initial API and implementation
*******************************************************************************/
package org.xmind.ui.internal.properties;
import java.util.List;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.xmind.gef.Request;
import org.xmind.ui.commands.CommandMessages;
import org.xmind.ui.decorations.IDecorationDescriptor;
import org.xmind.ui.decorations.IDecorationManager;
import org.xmind.ui.mindmap.MindMapUI;
import org.xmind.ui.properties.DecorationLabelProvider;
import org.xmind.ui.properties.StyledPropertySectionPart;
import org.xmind.ui.style.Styles;
import org.xmind.ui.viewers.MComboViewer;
public class RelationshipShapePropertySectionPart extends
StyledPropertySectionPart implements ISelectionChangedListener {
private static List<IDecorationDescriptor> RelationshipShapes;
private static List<IDecorationDescriptor> ArrowShapes;
private MComboViewer shapeViewer;
private MComboViewer beginArrowShapeViewer;
private MComboViewer endArrowShapeViewer;
protected void createContent(Composite parent) {
Composite line1 = new Composite(parent, SWT.NONE);
line1.setLayoutData(new GridData(GridData.FILL, GridData.FILL, true,
false));
GridLayout layout = new GridLayout(2, false);
layout.marginWidth = 0;
layout.marginHeight = 0;
layout.horizontalSpacing = 3;
layout.verticalSpacing = 3;
line1.setLayout(layout);
createLine1Content(line1);
Composite line2 = new Composite(parent, SWT.NONE);
line2.setLayoutData(new GridData(GridData.FILL, GridData.FILL, true,
false));
GridLayout layout2 = new GridLayout(2, true);
layout2.marginWidth = 0;
layout2.marginHeight = 0;
layout2.horizontalSpacing = 3;
layout2.verticalSpacing = 3;
line2.setLayout(layout2);
createLine2Content(line2);
}
private void createLine1Content(Composite parent) {
shapeViewer = new MComboViewer(parent, MComboViewer.NORMAL);
shapeViewer.getControl().setLayoutData(
new GridData(GridData.FILL, GridData.FILL, true, false));
shapeViewer.getControl().setToolTipText(
PropertyMessages.RelationshipShape_toolTip);
shapeViewer.setContentProvider(new ArrayContentProvider());
shapeViewer.setLabelProvider(new DecorationLabelProvider());
shapeViewer.setInput(getRelationshipShapes());
shapeViewer.addSelectionChangedListener(this);
}
private void createLine2Content(Composite parent) {
beginArrowShapeViewer = new MComboViewer(parent, MComboViewer.NORMAL);
beginArrowShapeViewer.getControl().setLayoutData(
new GridData(GridData.FILL, GridData.FILL, true, false));
beginArrowShapeViewer.getControl().setToolTipText(
PropertyMessages.BeginArrowShape_toolTip);
beginArrowShapeViewer.setContentProvider(new ArrayContentProvider());
beginArrowShapeViewer.setLabelProvider(new DecorationLabelProvider());
beginArrowShapeViewer.setInput(getArrowShapes());
beginArrowShapeViewer.addSelectionChangedListener(this);
endArrowShapeViewer = new MComboViewer(parent, MComboViewer.NORMAL);
endArrowShapeViewer.getControl().setLayoutData(
new GridData(GridData.FILL, GridData.FILL, true, false));
endArrowShapeViewer.getControl().setToolTipText(
PropertyMessages.EndArrowShape_toolTip);
endArrowShapeViewer.setContentProvider(new ArrayContentProvider());
endArrowShapeViewer.setLabelProvider(new DecorationLabelProvider());
endArrowShapeViewer.setInput(getArrowShapes());
endArrowShapeViewer.addSelectionChangedListener(this);
}
public void setFocus() {
if (shapeViewer != null && !shapeViewer.getControl().isDisposed()) {
shapeViewer.getControl().setFocus();
}
}
public void dispose() {
super.dispose();
shapeViewer = null;
beginArrowShapeViewer = null;
endArrowShapeViewer = null;
}
protected void doRefresh() {
if (shapeViewer != null && !shapeViewer.getControl().isDisposed()) {
String shapeId = getStyleValue(Styles.ShapeClass, null);
IDecorationDescriptor element = getSelectableDescriptor(shapeId,
getRelationshipShapes());
if (element == null) {
shapeViewer.setSelection(StructuredSelection.EMPTY);
} else {
shapeViewer.setSelection(new StructuredSelection(element));
}
}
if (beginArrowShapeViewer != null
&& !beginArrowShapeViewer.getControl().isDisposed()) {
String shapeId = getStyleValue(Styles.ArrowBeginClass, null);
IDecorationDescriptor element = getSelectableDescriptor(shapeId,
getArrowShapes());
if (element == null) {
beginArrowShapeViewer.setSelection(StructuredSelection.EMPTY);
} else {
beginArrowShapeViewer.setSelection(new StructuredSelection(
element));
}
}
if (endArrowShapeViewer != null
&& !endArrowShapeViewer.getControl().isDisposed()) {
String shapeId = getStyleValue(Styles.ArrowEndClass, null);
IDecorationDescriptor element = getSelectableDescriptor(shapeId,
getArrowShapes());
if (element == null) {
endArrowShapeViewer.setSelection(StructuredSelection.EMPTY);
} else {
endArrowShapeViewer.setSelection(new StructuredSelection(
element));
}
}
}
private IDecorationDescriptor getSelectableDescriptor(String shapeId,
List<IDecorationDescriptor> descriptors) {
if (shapeId == null)
return null;
IDecorationDescriptor descriptor = MindMapUI.getDecorationManager()
.getDecorationDescriptor(shapeId);
if (!descriptors.contains(descriptor))
return null;
return descriptor;
}
public void selectionChanged(SelectionChangedEvent event) {
if (isRefreshing())
return;
Object o = ((IStructuredSelection) event.getSelection())
.getFirstElement();
if (o instanceof IDecorationDescriptor) {
String decorationId = ((IDecorationDescriptor) o).getId();
ISelectionProvider provider = event.getSelectionProvider();
if (provider == shapeViewer) {
changeRelationshipShape(decorationId);
} else if (provider == beginArrowShapeViewer) {
changeBeginArrowShape(decorationId);
} else if (provider == endArrowShapeViewer) {
changeEndArrowShape(decorationId);
}
}
}
private void changeRelationshipShape(String newShape) {
Request request = createStyleRequest(CommandMessages.Command_ModifyRelationshipShape);
addStyle(request, Styles.ShapeClass, newShape);
sendRequest(request);
}
private void changeBeginArrowShape(String newShape) {
Request request = createStyleRequest(CommandMessages.Command_ModifyBeginArrowShape);
addStyle(request, Styles.ArrowBeginClass, newShape);
sendRequest(request);
}
private void changeEndArrowShape(String newShape) {
Request request = createStyleRequest(CommandMessages.Command_ModifyEndArrowShape);
addStyle(request, Styles.ArrowEndClass, newShape);
sendRequest(request);
}
private static List<IDecorationDescriptor> getRelationshipShapes() {
if (RelationshipShapes == null) {
RelationshipShapes = MindMapUI.getDecorationManager()
.getDescriptors(IDecorationManager.CATEGORY_REL_SHAPE);
}
return RelationshipShapes;
}
private static List<IDecorationDescriptor> getArrowShapes() {
if (ArrowShapes == null) {
ArrowShapes = MindMapUI.getDecorationManager().getDescriptors(
IDecorationManager.CATEGORY_ARROW_SHAPE);
}
return ArrowShapes;
}
}
