2 * Copyright (C) 2009 - 2012 SC 4ViewSoft SRL
\r
4 * Licensed under the Apache License, Version 2.0 (the "License");
\r
5 * you may not use this file except in compliance with the License.
\r
6 * You may obtain a copy of the License at
\r
8 * http://www.apache.org/licenses/LICENSE-2.0
\r
10 * Unless required by applicable law or agreed to in writing, software
\r
11 * distributed under the License is distributed on an "AS IS" BASIS,
\r
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
\r
13 * See the License for the specific language governing permissions and
\r
14 * limitations under the License.
\r
16 package org.achartengine.chart;
\r
18 import java.util.List;
\r
20 import org.achartengine.model.XYMultipleSeriesDataset;
\r
21 import org.achartengine.model.XYSeries;
\r
22 import org.achartengine.renderer.SimpleSeriesRenderer;
\r
23 import org.achartengine.renderer.XYMultipleSeriesRenderer;
\r
24 import org.achartengine.renderer.XYMultipleSeriesRenderer.Orientation;
\r
26 import android.graphics.Canvas;
\r
27 import android.graphics.Paint;
\r
30 * The combined XY chart rendering class.
\r
32 public class CombinedXYChart extends XYChart {
\r
33 /** The embedded XY charts. */
\r
34 private XYChart[] mCharts;
\r
35 /** The supported charts for being combined. */
\r
36 private Class[] xyChartTypes = new Class[] { TimeChart.class, LineChart.class,
\r
37 CubicLineChart.class, BarChart.class, BubbleChart.class, ScatterChart.class,
\r
38 RangeBarChart.class, RangeStackedBarChart.class };
\r
41 * Builds a new combined XY chart instance.
\r
43 * @param dataset the multiple series dataset
\r
44 * @param renderer the multiple series renderer
\r
45 * @param types the XY chart types
\r
47 public CombinedXYChart(XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer,
\r
49 super(dataset, renderer);
\r
50 int length = types.length;
\r
51 mCharts = new XYChart[length];
\r
52 for (int i = 0; i < length; i++) {
\r
54 mCharts[i] = getXYChart(types[i]);
\r
55 } catch (Exception e) {
\r
58 if (mCharts[i] == null) {
\r
59 throw new IllegalArgumentException("Unknown chart type " + types[i]);
\r
61 XYMultipleSeriesDataset newDataset = new XYMultipleSeriesDataset();
\r
62 newDataset.addSeries(dataset.getSeriesAt(i));
\r
63 XYMultipleSeriesRenderer newRenderer = new XYMultipleSeriesRenderer();
\r
64 // TODO: copy other parameters here
\r
65 newRenderer.setBarSpacing(renderer.getBarSpacing());
\r
66 newRenderer.setPointSize(renderer.getPointSize());
\r
67 int scale = dataset.getSeriesAt(i).getScaleNumber();
\r
68 if (renderer.isMinXSet(scale)) {
\r
69 newRenderer.setXAxisMin(renderer.getXAxisMin(scale));
\r
71 if (renderer.isMaxXSet(scale)) {
\r
72 newRenderer.setXAxisMax(renderer.getXAxisMax(scale));
\r
74 if (renderer.isMinYSet(scale)) {
\r
75 newRenderer.setYAxisMin(renderer.getYAxisMin(scale));
\r
77 if (renderer.isMaxYSet(scale)) {
\r
78 newRenderer.setYAxisMax(renderer.getYAxisMax(scale));
\r
80 newRenderer.addSeriesRenderer(renderer.getSeriesRendererAt(i));
\r
81 mCharts[i].setDatasetRenderer(newDataset, newRenderer);
\r
87 * Returns a chart instance based on the provided type.
\r
89 * @param type the chart type
\r
90 * @return an instance of a chart implementation
\r
91 * @throws IllegalAccessException
\r
92 * @throws InstantiationException
\r
94 private XYChart getXYChart(String type) throws IllegalAccessException, InstantiationException {
\r
95 XYChart chart = null;
\r
96 int length = xyChartTypes.length;
\r
97 for (int i = 0; i < length && chart == null; i++) {
\r
98 XYChart newChart = (XYChart) xyChartTypes[i].newInstance();
\r
99 if (type.equals(newChart.getChartType())) {
\r
107 * The graphical representation of a series.
\r
109 * @param canvas the canvas to paint to
\r
110 * @param paint the paint to be used for drawing
\r
111 * @param points the array of points to be used for drawing the series
\r
112 * @param seriesRenderer the series renderer
\r
113 * @param yAxisValue the minimum value of the y axis
\r
114 * @param seriesIndex the index of the series currently being drawn
\r
115 * @param startIndex the start index of the rendering points
\r
117 public void drawSeries(Canvas canvas, Paint paint, float[] points,
\r
118 SimpleSeriesRenderer seriesRenderer, float yAxisValue, int seriesIndex, int startIndex) {
\r
119 mCharts[seriesIndex].setScreenR(getScreenR());
\r
120 mCharts[seriesIndex].setCalcRange(getCalcRange(mDataset.getSeriesAt(seriesIndex)
\r
121 .getScaleNumber()), 0);
\r
122 mCharts[seriesIndex].drawSeries(canvas, paint, points, seriesRenderer, yAxisValue, 0,
\r
127 protected ClickableArea[] clickableAreasForPoints(float[] points, double[] values,
\r
128 float yAxisValue, int seriesIndex, int startIndex) {
\r
129 return mCharts[seriesIndex].clickableAreasForPoints(points, values, yAxisValue, 0, startIndex);
\r
133 protected void drawSeries(XYSeries series, Canvas canvas, Paint paint, List<Float> pointsList,
\r
134 SimpleSeriesRenderer seriesRenderer, float yAxisValue, int seriesIndex, Orientation or,
\r
136 mCharts[seriesIndex].setScreenR(getScreenR());
\r
137 mCharts[seriesIndex].setCalcRange(getCalcRange(mDataset.getSeriesAt(seriesIndex)
\r
138 .getScaleNumber()), 0);
\r
139 mCharts[seriesIndex].drawSeries(series, canvas, paint, pointsList, seriesRenderer, yAxisValue,
\r
140 0, or, startIndex);
\r
144 * Returns the legend shape width.
\r
146 * @param seriesIndex the series index
\r
147 * @return the legend shape width
\r
149 public int getLegendShapeWidth(int seriesIndex) {
\r
150 return mCharts[seriesIndex].getLegendShapeWidth(0);
\r
154 * The graphical representation of the legend shape.
\r
156 * @param canvas the canvas to paint to
\r
157 * @param renderer the series renderer
\r
158 * @param x the x value of the point the shape should be drawn at
\r
159 * @param y the y value of the point the shape should be drawn at
\r
160 * @param seriesIndex the series index
\r
161 * @param paint the paint to be used for drawing
\r
163 public void drawLegendShape(Canvas canvas, SimpleSeriesRenderer renderer, float x, float y,
\r
164 int seriesIndex, Paint paint) {
\r
165 mCharts[seriesIndex].drawLegendShape(canvas, renderer, x, y, 0, paint);
\r
169 * Returns the chart type identifier.
\r
171 * @return the chart type
\r
173 public String getChartType() {
\r