/************************************************************************************
* Copyright (c) 2008 William Chen. *
* *
* 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 *
* *
* Use is subject to the terms of Eclipse Public License v1.0. *
* *
* Contributors: *
* William Chen - initial API and implementation. *
************************************************************************************/
package org.dyno.visual.swing.widgets.grouplayout.undo;
import java.awt.Component;
import java.awt.Insets;
import java.util.ArrayList;
import javax.swing.JComponent;
import org.dyno.visual.swing.layouts.Alignment;
import org.dyno.visual.swing.layouts.Bilateral;
import org.dyno.visual.swing.layouts.Constraints;
import org.dyno.visual.swing.layouts.GroupLayout;
import org.dyno.visual.swing.layouts.Leading;
import org.dyno.visual.swing.layouts.Trailing;
import org.dyno.visual.swing.plugin.spi.CompositeAdapter;
import org.dyno.visual.swing.plugin.spi.WidgetAdapter;
import org.dyno.visual.swing.widgets.grouplayout.GroupLayoutAdapter;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
public class MiddleAlignmentOperation extends AlignmentOperation {
public MiddleAlignmentOperation(JComponent container, GroupLayoutAdapter glAdapter) {
super(Messages.MiddleAlignmentOperation_Align_Middle, container, glAdapter);
}
@Override
public IStatus execute(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
GroupLayout layout = (GroupLayout) container.getLayout();
CompositeAdapter containerAdapter = (CompositeAdapter) WidgetAdapter.getWidgetAdapter(container);
WidgetAdapter post = widgets.get(0);
Component postChild = post.getWidget();
Constraints postConstraints = layout.getConstraints(postChild);
Alignment postAlignment = postConstraints.getVertical();
compcons = new ArrayList<CompCons>();
Insets insets = container.getInsets();
int innerHeight = container.getHeight() - insets.top - insets.bottom;
if (postAlignment instanceof Leading) {
Leading postLeading = (Leading)postAlignment;
int postCenter = postLeading.getLeading() + postChild.getHeight() / 2;
for (int i = 1; i < widgets.size(); i++) {
WidgetAdapter adapter = widgets.get(i);
Component child = adapter.getWidget();
Constraints constraints = layout.getConstraints(child);
CompCons cons = new CompCons();
cons.component = child;
cons.constraints = constraints;
compcons.add(cons);
int l = postCenter - child.getHeight() / 2;
int t = innerHeight - postCenter - child.getHeight() / 2;
Leading leading = new Leading(l, child.getHeight(), 10, t);
constraints = new Constraints(constraints.getHorizontal(), leading);
layout.setConstraints(child, constraints);
}
} else if (postAlignment instanceof Bilateral) {
Bilateral postBilateral = (Bilateral)postAlignment;
int postCenter = postBilateral.getLeading() + postChild.getHeight() / 2;
for (int i = 1; i < widgets.size(); i++) {
WidgetAdapter adapter = widgets.get(i);
Component child = adapter.getWidget();
Constraints constraints = layout.getConstraints(child);
CompCons cons = new CompCons();
cons.component = child;
cons.constraints = constraints;
compcons.add(cons);
int l = postCenter - child.getHeight() / 2;
int t = innerHeight - postCenter - child.getHeight()/2;
Bilateral bilateral = new Bilateral(l, t, 10);
constraints = new Constraints(constraints.getHorizontal(), bilateral);
layout.setConstraints(child, constraints);
}
} else if (postAlignment instanceof Trailing) {
int postCenter = postChild.getY() + postChild.getHeight()/2 - insets.top;
for (int i = 1; i < widgets.size(); i++) {
WidgetAdapter adapter = widgets.get(i);
Component child = adapter.getWidget();
Constraints constraints = layout.getConstraints(child);
CompCons cons = new CompCons();
cons.component = child;
cons.constraints = constraints;
compcons.add(cons);
int l = postCenter - child.getHeight()/2;
int t = innerHeight - postCenter - child.getHeight()/2;
Trailing trailing= new Trailing(t, child.getHeight(), 10, l);
constraints = new Constraints(constraints.getHorizontal(), trailing);
layout.setConstraints(child, constraints);
}
}
container.invalidate();
containerAdapter.doLayout();
containerAdapter.setDirty(true);
containerAdapter.repaintDesigner();
return Status.OK_STATUS;
}
}