1 /* 2 * Copyright 2012 AndroidPlot.com 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.androidplot.xy; 18 19 import android.content.Context; 20 import android.graphics.Color; 21 import android.graphics.Paint; 22 import com.androidplot.ui.SeriesRenderer; 23 import com.androidplot.util.Configurator; 24 import com.androidplot.util.PixelUtils; 25 26 /** 27 * Defines the visual aesthetics of an XYSeries; outline color and width, fill style, 28 * vertex size and color, shadowing, etc. 29 */ 30 public class LineAndPointFormatter extends XYSeriesFormatter<XYRegionFormatter> { 31 32 private static final float DEFAULT_LINE_STROKE_WIDTH_DP = 1.5f; 33 private static final float DEFAULT_VERTEX_STROKE_WIDTH_DP = 4.5f; 34 35 // default implementation prints point's yVal: 36 private PointLabeler pointLabeler = new PointLabeler() { 37 @Override 38 public String getLabel(XYSeries series, int index) { 39 return series.getY(index) + ""; 40 } 41 }; 42 43 public FillDirection getFillDirection() { 44 return fillDirection; 45 } 46 47 /** 48 * Sets which edge to use to close the line's path for filling purposes. 49 * See {@link FillDirection}. 50 * @param fillDirection 51 */ 52 public void setFillDirection(FillDirection fillDirection) { 53 this.fillDirection = fillDirection; 54 } 55 56 protected FillDirection fillDirection = FillDirection.BOTTOM; 57 protected Paint linePaint; 58 protected Paint vertexPaint; 59 protected Paint fillPaint; 60 private PointLabelFormatter pointLabelFormatter; 61 62 { 63 initLinePaint(Color.BLACK); 64 } 65 66 /** 67 * Should only be used in conjunction with calls to configure()... 68 */ 69 public LineAndPointFormatter() { 70 this(Color.RED, Color.GREEN, Color.BLUE, null); 71 } 72 73 public LineAndPointFormatter(Integer lineColor, Integer vertexColor, Integer fillColor, PointLabelFormatter plf) { 74 this(lineColor, vertexColor, fillColor, plf, FillDirection.BOTTOM); 75 } 76 77 public LineAndPointFormatter(Integer lineColor, Integer vertexColor, Integer fillColor, PointLabelFormatter plf, FillDirection fillDir) { 78 initLinePaint(lineColor); 79 initVertexPaint(vertexColor); 80 initFillPaint(fillColor); 81 setFillDirection(fillDir); 82 this.setPointLabelFormatter(plf); 83 } 84 85 @Override 86 public Class<? extends SeriesRenderer> getRendererClass() { 87 return LineAndPointRenderer.class; 88 } 89 90 @Override 91 public SeriesRenderer getRendererInstance(XYPlot plot) { 92 return new LineAndPointRenderer(plot); 93 } 94 95 protected void initLinePaint(Integer lineColor) { 96 if (lineColor == null) { 97 linePaint = null; 98 } else { 99 linePaint = new Paint(); 100 linePaint.setAntiAlias(true); 101 linePaint.setStrokeWidth(PixelUtils.dpToPix(DEFAULT_LINE_STROKE_WIDTH_DP)); 102 linePaint.setColor(lineColor); 103 linePaint.setStyle(Paint.Style.STROKE); 104 } 105 } 106 107 protected void initVertexPaint(Integer vertexColor) { 108 if (vertexColor == null) { 109 vertexPaint = null; 110 } else { 111 vertexPaint = new Paint(); 112 vertexPaint.setAntiAlias(true); 113 vertexPaint.setStrokeWidth(PixelUtils.dpToPix(DEFAULT_VERTEX_STROKE_WIDTH_DP)); 114 vertexPaint.setColor(vertexColor); 115 vertexPaint.setStrokeCap(Paint.Cap.ROUND); 116 } 117 } 118 119 protected void initFillPaint(Integer fillColor) { 120 if (fillColor == null) { 121 fillPaint = null; 122 } else { 123 fillPaint = new Paint(); 124 fillPaint.setAntiAlias(true); 125 fillPaint.setColor(fillColor); 126 } 127 } 128 129 /** 130 * Enables the shadow layer on linePaint and shadowPaint by calling 131 * setShadowLayer() with preset values. 132 */ 133 public void enableShadows() { 134 linePaint.setShadowLayer(1, 3, 3, Color.BLACK); 135 vertexPaint.setShadowLayer(1, 3, 3, Color.BLACK); 136 } 137 138 public void disableShadows() { 139 linePaint.setShadowLayer(0, 0, 0, Color.BLACK); 140 vertexPaint.setShadowLayer(0, 0, 0, Color.BLACK); 141 } 142 143 public Paint getLinePaint() { 144 return linePaint; 145 } 146 147 public void setLinePaint(Paint linePaint) { 148 this.linePaint = linePaint; 149 } 150 151 public Paint getVertexPaint() { 152 return vertexPaint; 153 } 154 155 public void setVertexPaint(Paint vertexPaint) { 156 this.vertexPaint = vertexPaint; 157 } 158 159 public Paint getFillPaint() { 160 return fillPaint; 161 } 162 163 public void setFillPaint(Paint fillPaint) { 164 this.fillPaint = fillPaint; 165 } 166 167 public PointLabelFormatter getPointLabelFormatter() { 168 return pointLabelFormatter; 169 } 170 171 public void setPointLabelFormatter(PointLabelFormatter pointLabelFormatter) { 172 this.pointLabelFormatter = pointLabelFormatter; 173 } 174 175 public PointLabeler getPointLabeler() { 176 return pointLabeler; 177 } 178 179 public void setPointLabeler(PointLabeler pointLabeler) { 180 this.pointLabeler = pointLabeler; 181 } 182 } 183
