/**
* Copyright (C) 2009 - 2013 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 com.codename1.charts.views;
import java.util.List;
import com.codename1.charts.compat.Canvas;
import com.codename1.charts.compat.Paint;
import com.codename1.charts.models.XYMultipleSeriesDataset;
import com.codename1.charts.models.XYSeries;
import com.codename1.charts.renderers.SimpleSeriesRenderer;
import com.codename1.charts.renderers.XYMultipleSeriesRenderer;
import com.codename1.charts.renderers.XYMultipleSeriesRenderer.Orientation;
import com.codename1.charts.renderers.XYSeriesRenderer;
/**
* The combined XY chart rendering class.
*/
public class CombinedXYChart extends XYChart {
private XYCombinedChartDef[] chartDefinitions;
/** 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 chartDefinitions the XY chart definitions
*/
public CombinedXYChart(XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer,
XYCombinedChartDef[] chartDefinitions) {
super(dataset, renderer);
this.chartDefinitions = chartDefinitions;
int length = chartDefinitions.length;
mCharts = new XYChart[length];
for (int i = 0; i < length; i++) {
try {
mCharts[i] = getXYChart(chartDefinitions[i].getType());
} catch (Exception e) {
// ignore
}
if (mCharts[i] == null) {
throw new IllegalArgumentException("Unknown chart type " + chartDefinitions[i].getType());
} else {
XYMultipleSeriesDataset newDataset = new XYMultipleSeriesDataset();
XYMultipleSeriesRenderer newRenderer = new XYMultipleSeriesRenderer();
for (int seriesIndex : chartDefinitions[i].getSeriesIndex()) {
newDataset.addSeries(dataset.getSeriesAt(seriesIndex));
newRenderer.addSeriesRenderer(renderer.getSeriesRendererAt(seriesIndex));
}
newRenderer.setBarSpacing(renderer.getBarSpacing());
newRenderer.setPointSize(renderer.getPointSize());
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
*/
@Override
public void drawSeries(Canvas canvas, Paint paint, List<Float> points,
XYSeriesRenderer seriesRenderer, float yAxisValue, int seriesIndex, int startIndex) {
XYChart chart = getXYChart(seriesIndex);
chart.setScreenR(getScreenR());
chart.setCalcRange(getCalcRange(mDataset.getSeriesAt(seriesIndex).getScaleNumber()), 0);
chart.drawSeries(canvas, paint, points, seriesRenderer, yAxisValue,
getChartSeriesIndex(seriesIndex), startIndex);
}
@Override
protected ClickableArea[] clickableAreasForPoints(List<Float> points, List<Double> values,
float yAxisValue, int seriesIndex, int startIndex) {
XYChart chart = getXYChart(seriesIndex);
return chart.clickableAreasForPoints(points, values, yAxisValue,
getChartSeriesIndex(seriesIndex), startIndex);
}
@Override
protected void drawSeries(XYSeries series, Canvas canvas, Paint paint, List<Float> pointsList,
XYSeriesRenderer seriesRenderer, float yAxisValue, int seriesIndex, Orientation or,
int startIndex) {
XYChart chart = getXYChart(seriesIndex);
chart.setScreenR(getScreenR());
chart.setCalcRange(getCalcRange(mDataset.getSeriesAt(seriesIndex).getScaleNumber()), 0);
chart.drawSeries(series, canvas, paint, pointsList, seriesRenderer, yAxisValue,
getChartSeriesIndex(seriesIndex), or, startIndex);
}
/**
* Returns the legend shape width.
*
* @param seriesIndex the series index
* @return the legend shape width
*/
public int getLegendShapeWidth(int seriesIndex) {
XYChart chart = getXYChart(seriesIndex);
return chart.getLegendShapeWidth(getChartSeriesIndex(seriesIndex));
}
/**
* 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) {
XYChart chart = getXYChart(seriesIndex);
chart.drawLegendShape(canvas, renderer, x, y, getChartSeriesIndex(seriesIndex), paint);
}
/**
* Returns the chart type identifier.
*
* @return the chart type
*/
public String getChartType() {
return "Combined";
}
private XYChart getXYChart(int seriesIndex) {
int clen = chartDefinitions.length;
for (int i = 0; i < clen; i++) {
if (chartDefinitions[i].containsSeries(seriesIndex)) {
return mCharts[i];
}
}
throw new IllegalArgumentException("Unknown series with index " + seriesIndex);
}
private int getChartSeriesIndex(int seriesIndex) {
int clen = chartDefinitions.length;
for (int i = 0; i < clen; i++) {
if (chartDefinitions[i].containsSeries(seriesIndex)) {
return chartDefinitions[i].getChartSeriesIndex(seriesIndex);
}
}
throw new IllegalArgumentException("Unknown series with index " + seriesIndex);
}
/**
* Definition of a chart inside a combined XY chart.
*/
public static class XYCombinedChartDef {
/** The chart type. */
private String type;
/** The series index. */
private int[] seriesIndex;
/**
* Constructs a chart definition.
*
* @param type XY chart type
* @param seriesIndex corresponding data series indexes
*/
public XYCombinedChartDef(String type, int... seriesIndex) {
this.type = type;
this.seriesIndex = seriesIndex;
}
public boolean containsSeries(int seriesIndex) {
return getChartSeriesIndex(seriesIndex) >= 0;
}
public int getChartSeriesIndex(int seriesIndex) {
int slen = getSeriesIndex().length;
for (int i = 0; i < slen; i++) {
if (this.seriesIndex[i] == seriesIndex) {
return i;
}
}
return -1;
}
public String getType() {
return type;
}
public int[] getSeriesIndex() {
return seriesIndex;
}
}
}