org.kalypso.model.wspm.ui.commands.MousePositionChartHandler.java Source code

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Here is the source code for org.kalypso.model.wspm.ui.commands.MousePositionChartHandler.java

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/*----------------    FILE HEADER KALYPSO ------------------------------------------
 *
 *  This file is part of kalypso.
 *  Copyright (C) 2004 by:
 *
 *  Technical University Hamburg-Harburg (TUHH)
 *  Institute of River and coastal engineering
 *  Denickestrae 22
 *  21073 Hamburg, Germany
 *  http://www.tuhh.de/wb
 *
 *  and
 *
 *  Bjoernsen Consulting Engineers (BCE)
 *  Maria Trost 3
 *  56070 Koblenz, Germany
 *  http://www.bjoernsen.de
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  Contact:
 *
 *  E-Mail:
 *  belger@bjoernsen.de
 *  schlienger@bjoernsen.de
 *  v.doemming@tuhh.de
 *
 *  ---------------------------------------------------------------------------*/
package org.kalypso.model.wspm.ui.commands;

import java.awt.Insets;

import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.graphics.Rectangle;
import org.kalypso.chart.ui.editor.mousehandler.AbstractChartHandler;
import org.kalypso.model.wspm.ui.i18n.Messages;
import org.kalypso.model.wspm.ui.view.chart.IProfilChartLayer;

import de.openali.odysseus.chart.framework.model.IChartModel;
import de.openali.odysseus.chart.framework.model.mapper.IAxisConstants.ALIGNMENT;
import de.openali.odysseus.chart.framework.model.mapper.ICoordinateMapper;
import de.openali.odysseus.chart.framework.model.style.IStyleConstants.FONTSTYLE;
import de.openali.odysseus.chart.framework.model.style.IStyleConstants.FONTWEIGHT;
import de.openali.odysseus.chart.framework.model.style.impl.TextStyle;
import de.openali.odysseus.chart.framework.util.img.GenericChartLabelRenderer;
import de.openali.odysseus.chart.framework.util.img.IChartLabelRenderer;
import de.openali.odysseus.chart.framework.util.img.TitleTypeBean;
import de.openali.odysseus.chart.framework.view.IChartComposite;

/**
 * @author Dirk Kuch
 */
public class MousePositionChartHandler extends AbstractChartHandler {
    private final IChartLabelRenderer m_labelRenderer;

    public MousePositionChartHandler(final IChartComposite chart) {
        super(chart);

        final TitleTypeBean title = new TitleTypeBean();
        title.setInsets(new Insets(2, 2, 2, 2));
        title.setRotation(0);

        title.setPositionHorizontal(ALIGNMENT.RIGHT);
        title.setTextAnchorX(ALIGNMENT.RIGHT);
        title.setPositionVertical(ALIGNMENT.TOP);
        title.setTextAnchorY(ALIGNMENT.BOTTOM);

        final IChartModel model = chart.getChartModel();
        if (model == null) {
            final FontData fontData = JFaceResources.getTextFont().getFontData()[0];
            final RGB rgbFill = new RGB(255, 255, 255);
            final RGB rgbText = new RGB(0, 0, 0);
            title.setTextStyle(new TextStyle(fontData.getHeight(), fontData.getName(), rgbText, rgbFill,
                    FONTSTYLE.NORMAL, FONTWEIGHT.NORMAL, ALIGNMENT.LEFT, 255, true));
        } else {
            title.setTextStyle(model.getSettings().getTextStyle());
        }
        m_labelRenderer = new GenericChartLabelRenderer(title);
    }

    @SuppressWarnings("rawtypes")
    @Override
    public void mouseMove(final MouseEvent e) {
        final IChartComposite chart = getChart();
        final IProfilChartLayer theme = SelectionChartHandlerHelper.findProfileTheme(chart);
        String msg = ""; //$NON-NLS-1$
        if (theme != null) {
            final ICoordinateMapper mapper = theme.getCoordinateMapper();
            final Number hoehe = mapper.getTargetAxis().screenToNumeric(e.y);
            final Number breite = mapper.getDomainAxis().screenToNumeric(e.x);
            msg = String.format(Messages.getString("MousePositionChartHandler_0"), breite, hoehe); //$NON-NLS-1$
        }
        m_labelRenderer.getTitleTypeBean().setLabel(msg);
        forceRedrawEvent();
    }

    @Override
    public CHART_HANDLER_TYPE getType() {
        return CHART_HANDLER_TYPE.eBackground;
    }

    @Override
    public void paintControl(final PaintEvent e) {
        final IChartComposite chart = getChart();
        if (chart == null || chart.getPlotInfo() == null) {
            return;
        }
        final Rectangle rect = chart.getPlotInfo().getLegendRect();
        m_labelRenderer.paint(e.gc, rect);
    }
}