IETabContainerWidgetView.java example

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openflexo-master
/*
 * (c) Copyright 2010-2011 AgileBirds
 *
 * This file is part of OpenFlexo.
 *
 * OpenFlexo is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * OpenFlexo is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with OpenFlexo. If not, see <http://www.gnu.org/licenses/>.
 *
 */
package org.openflexo.ie.view.widget;

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Font;
import java.util.Enumeration;

import javax.swing.BorderFactory;

import org.openflexo.foundation.DataModification;
import org.openflexo.foundation.FlexoObservable;
import org.openflexo.foundation.ie.dm.SubsequenceInserted;
import org.openflexo.foundation.ie.dm.TabInserted;
import org.openflexo.foundation.ie.dm.TabRemoved;
import org.openflexo.foundation.ie.dm.TabReordered;
import org.openflexo.foundation.ie.dm.TabSelectionChanged;
import org.openflexo.foundation.ie.widget.IESequence;
import org.openflexo.foundation.ie.widget.IESequenceTab;
import org.openflexo.foundation.ie.widget.IETabWidget;
import org.openflexo.foundation.ie.widget.IEWidget;
import org.openflexo.foundation.ie.widget.ITabWidget;
import org.openflexo.foundation.ie.widget.OperatorChanged;
import org.openflexo.foundation.ie.widget.SubsequenceRemoved;
import org.openflexo.ie.view.IEWOComponentView;
import org.openflexo.ie.view.controller.IEController;

/**
 * @author bmangez
 * 
 *         TODO To change the template for this generated type comment go to Window - Preferences - Java - Code Style - Code Templates
 */
public class IETabContainerWidgetView extends IEWidgetView<IESequenceTab> {

	private GrabTabZone grabTabZone;

	private ButtonPanel _buttonPanel;

	private DropTabZone _dropTabZone;

	public static final Font BLOC_TITLE_FONT = new Font("SansSerif", Font.BOLD, 10);

	// ==========================================================================
	// ============================= Constructor
	// ================================
	// ==========================================================================

	public IETabContainerWidgetView(IEController ieController, IESequenceTab model, boolean addDnDSupport, IEWOComponentView componentView) {
		super(ieController, model, addDnDSupport, componentView);
		setLayout(new BorderLayout());
		setDefaultBorder();
		setOpaque(false);
		new ObserverRegistation(this, model.getWOComponent());
		// setBackground(Color.WHITE);
		_buttonPanel = new ButtonPanel(getIEController(), model, componentView);
		add(_buttonPanel, BorderLayout.SOUTH);
		grabTabZone = new GrabTabZone(model);
		add(grabTabZone, BorderLayout.NORTH);
		_dropTabZone = new DropTabZone(ieController, this);
		add(_dropTabZone, BorderLayout.CENTER);
		Enumeration en = model.elements();
		while (en.hasMoreElements()) {
			updateTabInsertion((ITabWidget) en.nextElement());
		}
	}

	public int getSelectedIndex() {
		return _dropTabZone.getSelectedIndex();
	}

	@Override
	public void setDefaultBorder() {
		setBorder(BorderFactory.createLineBorder(getMainColor()));
	}

	@Override
	public void delete() {
		if (_dropTabZone != null) {
			_dropTabZone.delete();
		}
		_dropTabZone = null;
		super.delete();
	}

	public IESequenceTab getTabContainerWidget() {
		return getModel();
	}

	// ==========================================================================
	// ============================= Observer
	// ===================================
	// ==========================================================================

	@Override
	public void update(FlexoObservable arg0, DataModification modif) {
		if (modif instanceof TabInserted) {
			updateTabInsertion((IETabWidget) modif.newValue());
		} else if (modif instanceof TabReordered) {
			updateTabReodering();
		} else if (modif instanceof TabRemoved) {
			IETabWidgetView view = (IETabWidgetView) _dropTabZone.findViewForModel((IETabWidget) modif.oldValue());
			if (view == null) {
				return; // In case of double notification
			}
			_dropTabZone.remove(view);
			stopObserving((IETabWidget) modif.oldValue());
			view.delete();
		} else if (modif instanceof TabSelectionChanged) {
			Component c = findTabForModel((IETabWidget) modif.newValue());
			if (c != null) {
				_dropTabZone.setSelectedComponent(c);
			}
		} else if (modif instanceof SubsequenceInserted) {
			new ObserverRegistation(this, (IESequence) ((SubsequenceInserted) modif).newValue());
			updateTabInsertion((ITabWidget) ((SubsequenceInserted) modif).newValue());
		} else if (modif instanceof SubsequenceRemoved) {
			stopObserving((IESequence) ((SubsequenceRemoved) modif).oldValue());
			_dropTabZone.updateConditionalIcons();
		} else if (modif instanceof OperatorChanged) {
			_dropTabZone.updateConditionalIcons();
		} else {
			super.update(arg0, modif);
		}
	}

	private Component findTabForModel(IETabWidget widgetModel) {
		for (int i = 0; i < _dropTabZone.getComponentCount(); i++) {
			Component c = _dropTabZone.getComponent(i);
			if (c instanceof IETabWidgetView) {
				if (((IETabWidgetView) c).getModel().equals(widgetModel)) {
					return c;
				}
			}
		}
		return null;
	}

	private void updateTabInsertion(ITabWidget newTab) {
		if (newTab instanceof IETabWidget) {
			int i = 0;
			if (((IESequenceTab) ((IETabWidget) newTab).getParent()).isSubsequence()) {
				i = ((IESequenceTab) ((IETabWidget) newTab).getParent()).getIndex();
			} else {
				i = ((IETabWidget) newTab).getIndex();
			}
			_dropTabZone.updateTabInsertion((IETabWidget) newTab, i);
		} else if (newTab instanceof IESequenceTab) {
			Enumeration<ITabWidget> en = ((IESequenceTab) newTab).elements();
			while (en.hasMoreElements()) {
				updateTabInsertion(en.nextElement());
			}
		}
		new ObserverRegistation(this, (IEWidget) newTab);
	}

	private void updateTabReodering() {
		_dropTabZone.updateTabReodering();
	}

	@Override
	public Dimension getPreferredSize() {
		IESequenceWidgetWidgetView parentSequenceView = null;
		if (getParent() instanceof IESequenceWidgetWidgetView) {
			parentSequenceView = (IESequenceWidgetWidgetView) getParent();
		}
		Dimension d = super.getPreferredSize();
		if (parentSequenceView != null) {
			d.width = parentSequenceView.getAvailableWidth();
			if (d.height < 20) {
				d.height = 20;
			}
		}
		return d;
	}

}