/**
* Copyright (C) 2009 - 2012 SC 4ViewSoft SRL
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.achartengine.chart;
import java.util.List;
import org.achartengine.model.XYMultipleSeriesDataset;
import org.achartengine.model.XYSeries;
import org.achartengine.renderer.SimpleSeriesRenderer;
import org.achartengine.renderer.XYMultipleSeriesRenderer;
import org.achartengine.renderer.XYMultipleSeriesRenderer.Orientation;
import android.graphics.Canvas;
import android.graphics.Paint;
/**
* The combined XY chart rendering class.
*/
public class CombinedXYChart extends XYChart {
/** The embedded XY charts. */
private XYChart[] mCharts;
/** The supported charts for being combined. */
private Class[] xyChartTypes = new Class[] { TimeChart.class, LineChart.class,
CubicLineChart.class, BarChart.class, BubbleChart.class, ScatterChart.class,
RangeBarChart.class, RangeStackedBarChart.class };
/**
* Builds a new combined XY chart instance.
*
* @param dataset the multiple series dataset
* @param renderer the multiple series renderer
* @param types the XY chart types
*/
public CombinedXYChart(XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer,
String[] types) {
super(dataset, renderer);
int length = types.length;
mCharts = new XYChart[length];
for (int i = 0; i < length; i++) {
try {
mCharts[i] = getXYChart(types[i]);
} catch (Exception e) {
// ignore
}
if (mCharts[i] == null) {
throw new IllegalArgumentException("Unknown chart type " + types[i]);
} else {
XYMultipleSeriesDataset newDataset = new XYMultipleSeriesDataset();
newDataset.addSeries(dataset.getSeriesAt(i));
XYMultipleSeriesRenderer newRenderer = new XYMultipleSeriesRenderer();
// TODO: copy other parameters here
newRenderer.setBarSpacing(renderer.getBarSpacing());
newRenderer.setPointSize(renderer.getPointSize());
int scale = dataset.getSeriesAt(i).getScaleNumber();
if (renderer.isMinXSet(scale)) {
newRenderer.setXAxisMin(renderer.getXAxisMin(scale));
}
if (renderer.isMaxXSet(scale)) {
newRenderer.setXAxisMax(renderer.getXAxisMax(scale));
}
if (renderer.isMinYSet(scale)) {
newRenderer.setYAxisMin(renderer.getYAxisMin(scale));
}
if (renderer.isMaxYSet(scale)) {
newRenderer.setYAxisMax(renderer.getYAxisMax(scale));
}
newRenderer.addSeriesRenderer(renderer.getSeriesRendererAt(i));
mCharts[i].setDatasetRenderer(newDataset, newRenderer);
}
}
}
/**
* Returns a chart instance based on the provided type.
*
* @param type the chart type
* @return an instance of a chart implementation
* @throws IllegalAccessException
* @throws InstantiationException
*/
private XYChart getXYChart(String type) throws IllegalAccessException, InstantiationException {
XYChart chart = null;
int length = xyChartTypes.length;
for (int i = 0; i < length && chart == null; i++) {
XYChart newChart = (XYChart) xyChartTypes[i].newInstance();
if (type.equals(newChart.getChartType())) {
chart = newChart;
}
}
return chart;
}
/**
* The graphical representation of a series.
*
* @param canvas the canvas to paint to
* @param paint the paint to be used for drawing
* @param points the array of points to be used for drawing the series
* @param seriesRenderer the series renderer
* @param yAxisValue the minimum value of the y axis
* @param seriesIndex the index of the series currently being drawn
* @param startIndex the start index of the rendering points
*/
public void drawSeries(Canvas canvas, Paint paint, float[] points,
SimpleSeriesRenderer seriesRenderer, float yAxisValue, int seriesIndex, int startIndex) {
mCharts[seriesIndex].setScreenR(getScreenR());
mCharts[seriesIndex].setCalcRange(getCalcRange(mDataset.getSeriesAt(seriesIndex)
.getScaleNumber()), 0);
mCharts[seriesIndex].drawSeries(canvas, paint, points, seriesRenderer, yAxisValue, 0,
startIndex);
}
@Override
protected ClickableArea[] clickableAreasForPoints(float[] points, double[] values,
float yAxisValue, int seriesIndex, int startIndex) {
return mCharts[seriesIndex].clickableAreasForPoints(points, values, yAxisValue, 0, startIndex);
}
@Override
protected void drawSeries(XYSeries series, Canvas canvas, Paint paint, List<Float> pointsList,
SimpleSeriesRenderer seriesRenderer, float yAxisValue, int seriesIndex, Orientation or,
int startIndex) {
mCharts[seriesIndex].setScreenR(getScreenR());
mCharts[seriesIndex].setCalcRange(getCalcRange(mDataset.getSeriesAt(seriesIndex)
.getScaleNumber()), 0);
mCharts[seriesIndex].drawSeries(series, canvas, paint, pointsList, seriesRenderer, yAxisValue,
0, or, startIndex);
}
/**
* Returns the legend shape width.
*
* @param seriesIndex the series index
* @return the legend shape width
*/
public int getLegendShapeWidth(int seriesIndex) {
return mCharts[seriesIndex].getLegendShapeWidth(0);
}
/**
* The graphical representation of the legend shape.
*
* @param canvas the canvas to paint to
* @param renderer the series renderer
* @param x the x value of the point the shape should be drawn at
* @param y the y value of the point the shape should be drawn at
* @param seriesIndex the series index
* @param paint the paint to be used for drawing
*/
public void drawLegendShape(Canvas canvas, SimpleSeriesRenderer renderer, float x, float y,
int seriesIndex, Paint paint) {
mCharts[seriesIndex].drawLegendShape(canvas, renderer, x, y, 0, paint);
}
/**
* Returns the chart type identifier.
*
* @return the chart type
*/
public String getChartType() {
return "Combined";
}
}