/*
* Copyright (C) 2000 - 2008 TagServlet Ltd
*
* This file is part of Open BlueDragon (OpenBD) CFML Server Engine.
*
* OpenBD is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* Free Software Foundation,version 3.
*
* OpenBD 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 OpenBD. If not, see http://www.gnu.org/licenses/
*
* Additional permission under GNU GPL version 3 section 7
*
* If you modify this Program, or any covered work, by linking or combining
* it with any of the JARS listed in the README.txt (or a modified version of
* (that library), containing parts covered by the terms of that JAR, the
* licensors of this Program grant you additional permission to convey the
* resulting work.
* README.txt @ http://www.openbluedragon.org/license/README.txt
*
* http://www.openbluedragon.org/
*/
package com.newatlanta.bluedragon;
import java.awt.Graphics2D;
import java.awt.geom.Rectangle2D;
import java.io.Serializable;
import org.jfree.chart.axis.AxisSpace;
import org.jfree.chart.axis.AxisState;
import org.jfree.chart.plot.Plot;
import org.jfree.ui.RectangleEdge;
/**
* An axis that displays categories.
*/
public class CategoryAxis extends org.jfree.chart.axis.CategoryAxis implements Cloneable, Serializable {
/** For serialization. */
private static final long serialVersionUID = 5886554608114265863L;
public CategoryAxis() {
this(null);
}
public CategoryAxis(String label) {
super(label);
}
/*
* This method is the same as in the parent class except that it includes a
* fix for category labels that wrap on to multiple lines. This fix is
* highlighted below with comments.
*/
public AxisSpace reserveSpace(Graphics2D g2, Plot plot, Rectangle2D plotArea, RectangleEdge edge, AxisSpace space) {
// create a new space object if one wasn't supplied...
if (space == null) {
space = new AxisSpace();
}
// if the axis is not visible, no additional space is required...
if (!isVisible()) {
return space;
}
// calculate the max size of the tick labels (if visible)...
double tickLabelHeight = 0.0;
double tickLabelWidth = 0.0;
if (isTickLabelsVisible()) {
g2.setFont(getTickLabelFont());
AxisState state = new AxisState();
// we call refresh ticks just to get the maximum width or height
if (RectangleEdge.isTopOrBottom(edge)) {
// BEGIN fix for category labels that wrap
// If space has been reserved to the left and right then we need to
// reduce the plot area
// by this amount so that the space needed by category labels that wrap
// on to multiple lines
// will be calculated properly.
Rectangle2D newPlotArea = new Rectangle2D.Double(plotArea.getX(), plotArea.getY(), plotArea.getWidth() - space.getLeft() - space.getRight(), plotArea.getHeight());
refreshTicks(g2, state, newPlotArea, edge);
// END fix for category labels that wrap
} else {
refreshTicks(g2, state, plotArea, edge);
}
if (edge == RectangleEdge.TOP) {
tickLabelHeight = state.getMax();
} else if (edge == RectangleEdge.BOTTOM) {
tickLabelHeight = state.getMax();
} else if (edge == RectangleEdge.LEFT) {
tickLabelWidth = state.getMax();
} else if (edge == RectangleEdge.RIGHT) {
tickLabelWidth = state.getMax();
}
}
// get the axis label size and update the space object...
Rectangle2D labelEnclosure = getLabelEnclosure(g2, edge);
double labelHeight = 0.0;
double labelWidth = 0.0;
if (RectangleEdge.isTopOrBottom(edge)) {
labelHeight = labelEnclosure.getHeight();
space.add(labelHeight + tickLabelHeight + this.getCategoryLabelPositionOffset(), edge);
} else if (RectangleEdge.isLeftOrRight(edge)) {
labelWidth = labelEnclosure.getWidth();
space.add(labelWidth + tickLabelWidth + this.getCategoryLabelPositionOffset(), edge);
}
return space;
}
}