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

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Here is the source code for org.kalypso.model.wspm.ui.commands.UpdateProfileSelectionChartHandler.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 org.apache.commons.lang3.Range;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.graphics.Point;
import org.kalypso.chart.ui.editor.mousehandler.AbstractChartHandler;
import org.kalypso.chart.ui.editor.mousehandler.EventUtils;
import org.kalypso.model.wspm.core.profil.IProfile;
import org.kalypso.model.wspm.core.profil.IRangeSelection;
import org.kalypso.model.wspm.ui.view.chart.IProfilChartLayer;

import de.openali.odysseus.chart.framework.model.mapper.IAxis;
import de.openali.odysseus.chart.framework.model.mapper.ICoordinateMapper;
import de.openali.odysseus.chart.framework.util.resource.Pair;
import de.openali.odysseus.chart.framework.view.IChartComposite;

/**
 * @author Kim werner
 */
public class UpdateProfileSelectionChartHandler extends AbstractChartHandler {
    private Integer m_p0 = null;

    private Integer m_p1 = null;

    private Integer m_p2 = null;

    public UpdateProfileSelectionChartHandler(final IChartComposite chart) {
        super(chart);
        super.setCursor(SWT.CURSOR_CROSS);
    }

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

    @Override
    public void mouseDown(final MouseEvent e) {
        super.mouseDown(e);

        if (isOutOfRange(new Point(e.x, e.y))) {
            return;
        }

        m_p0 = e.x;
        m_p1 = null;

    }

    @Override
    public void mouseMove(final MouseEvent e) {
        super.mouseMove(e);
        m_p2 = e.x;
        if (isOutOfRange(new Point(e.x, e.y))) {
            m_p1 = null;
            m_p2 = null;
            return;
        }
        if (EventUtils.isStateButton1(e)) {
            m_p1 = e.x;
        } else {
            SelectionChartHandlerHelper.updateCursor(getChart(), e.x);
        }
    }

    @SuppressWarnings("rawtypes")
    @Override
    public void mouseUp(final MouseEvent e) {
        final IProfilChartLayer theme = SelectionChartHandlerHelper.findProfileTheme(getChart());
        if (theme == null) {
            m_p0 = null;
            m_p1 = null;
            return;
        }
        final ICoordinateMapper mapper = theme.getCoordinateMapper();
        final IAxis domAxis = mapper.getDomainAxis();
        final IProfile profile = theme.getProfil();
        final boolean isClicked = m_p1 == null || Math.abs(m_p0 - m_p1) < 5;
        final Double x1 = domAxis.screenToNumeric(m_p0);
        final Double x2 = isClicked ? x1 : domAxis.screenToNumeric(m_p1);
        final IRangeSelection selection = profile.getSelection();

        if (isClicked) {
            selection.setRange(Range.is(x1));
        } else {
            selection.setRange(Range.between(x1, x2));
        }
        m_p0 = null;
        m_p1 = null;
    }

    @Override
    public void paintControl(final PaintEvent e) {
        super.paintControl(e);
        final IChartComposite chart = getChart();
        SelectionChartHandlerHelper.paintMouse(chart, e, m_p2);
        final Pair<Integer, Integer> selection = SelectionChartHandlerHelper.selectionToScreen(chart);
        if (selection != null) {
            SelectionChartHandlerHelper.paintSelection(chart, e, selection.getDomain(), selection.getTarget());
        }
        if (m_p0 == null || m_p1 == null) {
            return;
        }
        SelectionChartHandlerHelper.paintRange(getChart(), e, m_p0, m_p1);

    }
}