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.graphics.Canvas; 20 import android.graphics.Color; 21 import android.graphics.Paint; 22 import android.graphics.PointF; 23 import com.androidplot.util.PixelUtils; 24 25 public class PointLabelFormatter { 26 private static final float DEFAULT_H_OFFSET_DP = 0; 27 private static final float DEFAULT_V_OFFSET_DP = -4; 28 private static final float DEFAULT_TEXT_SIZE_SP = 12; 29 private Paint textPaint; 30 public float hOffset; 31 public float vOffset; 32 33 public PointLabelFormatter() { 34 this(Color.WHITE); 35 } 36 37 public PointLabelFormatter(int textColor) { 38 this(textColor, PixelUtils.dpToPix(DEFAULT_H_OFFSET_DP), 39 PixelUtils.dpToPix(DEFAULT_V_OFFSET_DP)); 40 } 41 42 /** 43 * 44 * @param textColor 45 * @param hOffset Horizontal offset of text in pixels. 46 * @param vOffset Vertical offset of text in pixels. Offset is in screen coordinates; 47 * positive values shift the text further down the screen. 48 */ 49 public PointLabelFormatter(int textColor, float hOffset, float vOffset) { 50 initTextPaint(textColor); 51 this.hOffset = hOffset; 52 this.vOffset = vOffset; 53 } 54 55 public Paint getTextPaint() { 56 return textPaint; 57 } 58 59 public void setTextPaint(Paint textPaint) { 60 this.textPaint = textPaint; 61 } 62 63 protected void initTextPaint(Integer textColor) { 64 if (textColor == null) { 65 setTextPaint(null); 66 } else { 67 setTextPaint(new Paint()); 68 getTextPaint().setAntiAlias(true); 69 getTextPaint().setColor(textColor); 70 getTextPaint().setTextAlign(Paint.Align.CENTER); 71 getTextPaint().setTextSize(PixelUtils.spToPix(DEFAULT_TEXT_SIZE_SP)); 72 //textPaint.setStyle(Paint.Style.STROKE); 73 } 74 } 75 } 76
