/*
* This file is part of ADDIS (Aggregate Data Drug Information System).
* ADDIS is distributed from http://drugis.org/.
* Copyright © 2009 Gert van Valkenhoef, Tommi Tervonen.
* Copyright © 2010 Gert van Valkenhoef, Tommi Tervonen, Tijs Zwinkels,
* Maarten Jacobs, Hanno Koeslag, Florin Schimbinschi, Ahmad Kamal, Daniel
* Reid.
* Copyright © 2011 Gert van Valkenhoef, Ahmad Kamal, Daniel Reid, Florin
* Schimbinschi.
* Copyright © 2012 Gert van Valkenhoef, Daniel Reid, Joël Kuiper, Wouter
* Reckman.
* Copyright © 2013 Gert van Valkenhoef, Joël Kuiper.
*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.drugis.addis.forestplot;
import java.awt.BasicStroke;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.geom.Rectangle2D;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JComponent;
import org.drugis.addis.entities.relativeeffect.AxisType;
import org.drugis.addis.entities.relativeeffect.RelativeEffect;
import org.drugis.addis.presentation.ForestPlotPresentation;
@SuppressWarnings("serial")
public class ForestPlot extends JComponent {
enum Align {
LEFT,
CENTER,
RIGHT
};
public static final int PADDING = 4;
public static final int ROWHEIGHT = 21;
public static final int ROWVCENTER = ROWHEIGHT / 2 + 1;
public static final int ROWPAD = 10;
public static final int FULLROW = ROWHEIGHT + ROWPAD;
public static final int BARWIDTH = 301;
public static final int STUDYWIDTH = 192;
public static final int CIWIDTH = 192;
public static final int FULLWIDTH = BARWIDTH + STUDYWIDTH + CIWIDTH;
public static final int TICKLENGTH = 4;
public static final int HORPAD = 20;
private List<RelativeEffectBar> d_bars;
private ForestPlotPresentation d_pm;
private Graphics2D d_g2d;
public ForestPlot(ForestPlotPresentation pres) {
d_pm = pres;
d_bars = new ArrayList<RelativeEffectBar>();
int yPos = ROWVCENTER;
for (int i=0; i < d_pm.getNumRelativeEffects(); ++i) {
d_bars.add(new RelativeEffectBar(d_pm.getScale(), yPos, (RelativeEffect<?>) d_pm.getRelativeEffectAt(i),
d_pm.getDiamondSize(i), d_pm.isPooledRelativeEffect(i)));
yPos += FULLROW;
}
}
@Override
public Dimension getSize() {
int y = (int) ((FULLROW * (d_bars.size() + 4)) + ROWVCENTER + d_g2d.getFontMetrics().getHeight());
return new Dimension(FULLWIDTH + 20, y);
}
@Override
public void paint(Graphics g) {
d_g2d = (Graphics2D) g;
d_g2d.translate(PADDING, PADDING);
d_g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
//HEADER ROW:
drawVerticalCenterString(d_g2d, "Study", 1, Align.LEFT, FULLROW * 0);
drawVerticalCenterString(d_g2d, "Relative Effect (95% CI)", FULLWIDTH, Align.RIGHT, FULLROW * 0);
d_g2d.drawRect(1, ROWHEIGHT, FULLWIDTH, 1);
//STUDY COLUMN & CI COLUMN:
for (int i = 0; i < d_pm.getNumRelativeEffects(); ++i) {
drawVerticalCenterString(d_g2d, d_pm.getStudyLabelAt(i), 1, Align.LEFT, FULLROW * (i + 1));
drawVerticalCenterString(d_g2d, d_pm.getCIlabelAt(i), FULLWIDTH, Align.RIGHT, FULLROW * (i + 1));
}
d_g2d.translate(STUDYWIDTH, FULLROW);
for (int i=0; i < d_bars.size(); ++i) {
if (d_pm.getRelativeEffectAt(i).isDefined())
d_bars.get(i).paint(d_g2d);
}
paintAxis(d_g2d);
}
private int getNumRows() {
return (d_bars.size() + (d_pm.hasPooledRelativeEffect() ? 5 : 4));
}
public void paintAxis(Graphics2D g2d) {
//Horizontal axis:
int y0 = FULLROW * d_bars.size();
g2d.drawLine(1, y0, BARWIDTH, y0);
//Vertical axis:
int originX = d_pm.getScale().getBin(d_pm.getScaleType() == AxisType.LOGARITHMIC ? 1D : 0D).bin;
g2d.drawLine(originX, 1 - ROWPAD, originX, y0);
//Tickmarks:
List<Integer> ticks = d_pm.getTicks();
List<String> tickVals = d_pm.getTickVals();
drawAxisTicks(g2d, y0, ticks, tickVals);
drawVerticalCenterString(g2d, d_pm.getRelativeEffectAt(0).getName(), originX, Align.CENTER, FULLROW * (d_bars.size() + 1));
drawVerticalCenterString(g2d, ("Favours " + d_pm.getLowValueFavors()), (originX - HORPAD), Align.RIGHT, FULLROW * (d_bars.size() + 2));
drawVerticalCenterString(g2d, ("Favours " + d_pm.getHighValueFavors()), (originX + HORPAD), Align.LEFT, FULLROW * (d_bars.size() + 2));
// Draw the Heterogeneity
if (d_pm.hasPooledRelativeEffect()) {
drawVerticalCenterString(g2d, ("Heterogeneity = " + d_pm.getHeterogeneity() + " (I\u00B2 = " + d_pm.getHeterogeneityI2() + ")"), (FULLWIDTH / 4), Align.CENTER, FULLROW * (d_bars.size() + 3));
//draw dashed line from the combined diamond:
float[] dash = { 1f, 1f, 1f };
g2d.setStroke(new BasicStroke(1, BasicStroke.CAP_BUTT,
BasicStroke.JOIN_ROUND, 1.0f, dash, 2f ));
g2d.drawLine(d_pm.getScale().getBin(d_pm.getRelativeEffectAt(d_pm.getNumRelativeEffects()-1).getConfidenceInterval().getPointEstimate()).bin,
(FULLROW * (d_bars.size() - 1)) + 3,
d_pm.getScale().getBin(d_pm.getRelativeEffectAt(d_pm.getNumRelativeEffects()-1).getConfidenceInterval().getPointEstimate()).bin,
ROWVCENTER);
}
}
public static void drawAxisTicks(Graphics g, int y0, List<Integer> ticks, List<String> tickVals) {
int index = 0;
for (Integer i : ticks) {
g.drawLine(i, y0, i, y0 + TICKLENGTH);
drawVerticalCenterString(g, tickVals.get(index).toString(), i, Align.CENTER, y0);
++index;
}
}
public Dimension getPlotSize() {
return new Dimension(2 * PADDING + FULLWIDTH, FULLROW * getNumRows() + ROWPAD + 2 * PADDING);
}
private static void drawVerticalCenterString(Graphics g, String text, int xpos, Align a, int y0) {
Rectangle2D textBounds = g.getFontMetrics().getStringBounds(text, g);
int y = (int) (y0 + ROWVCENTER + (textBounds.getHeight() / 2.0));
int x = 1;
switch(a) {
case LEFT:
x = xpos;
break;
case CENTER:
x = (int) (xpos - textBounds.getWidth() / 2);
break;
case RIGHT:
x = (int) (xpos - textBounds.getWidth());
break;
}
g.drawString(text, x, y);
}
}