mirror of https://github.com/iSoron/uhabits.git
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/*
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* Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
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*
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* This file is part of Loop Habit Tracker.
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*
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* Loop Habit Tracker is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* Loop Habit Tracker is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.isoron.uhabits.views;
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import android.content.Context;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.Paint;
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import android.graphics.RectF;
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import android.util.AttributeSet;
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import org.isoron.helpers.ColorHelper;
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import org.isoron.helpers.DateHelper;
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import org.isoron.uhabits.models.Habit;
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import java.text.SimpleDateFormat;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.GregorianCalendar;
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import java.util.HashMap;
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import java.util.Locale;
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import java.util.Random;
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public class WeekdayFrequencyView extends ScrollableDataView
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{
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private Paint pGrid;
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private float em;
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private Habit habit;
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private SimpleDateFormat dfMonth;
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private SimpleDateFormat dfYear;
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private Paint pText, pGraph;
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private RectF rect, prevRect;
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private int baseSize;
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private int paddingTop;
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private int columnWidth;
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private int columnHeight;
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private int nColumns;
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private int textColor;
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private int dimmedTextColor;
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private int[] colors;
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private int primaryColor;
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private boolean isBackgroundTransparent;
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private HashMap<Long, Integer[]> frequency;
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private String wdays[];
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public WeekdayFrequencyView(Context context, AttributeSet attrs)
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{
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super(context, attrs);
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this.primaryColor = ColorHelper.palette[7];
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this.frequency = new HashMap<>();
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wdays = DateHelper.getShortDayNames();
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init();
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}
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public void setHabit(Habit habit)
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{
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this.habit = habit;
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createColors();
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refreshData();
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postInvalidate();
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}
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private void init()
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{
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refreshData();
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createPaints();
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createColors();
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dfMonth = new SimpleDateFormat("MMM", Locale.getDefault());
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dfYear = new SimpleDateFormat("yyyy", Locale.getDefault());
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rect = new RectF();
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prevRect = new RectF();
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}
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private void createColors()
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{
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if(habit != null)
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this.primaryColor = habit.color;
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if (isBackgroundTransparent)
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{
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primaryColor = ColorHelper.setSaturation(primaryColor, 0.75f);
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primaryColor = ColorHelper.setValue(primaryColor, 1.0f);
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textColor = Color.argb(192, 255, 255, 255);
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dimmedTextColor = Color.argb(128, 255, 255, 255);
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}
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else
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{
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textColor = Color.argb(64, 0, 0, 0);
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dimmedTextColor = Color.argb(16, 0, 0, 0);
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}
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colors = new int[4];
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colors[0] = Color.rgb(230, 230, 230);
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colors[3] = primaryColor;
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colors[1] = ColorHelper.mixColors(colors[0], colors[3], 0.66f);
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colors[2] = ColorHelper.mixColors(colors[0], colors[3], 0.33f);
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}
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protected void createPaints()
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{
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pText = new Paint();
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pText.setAntiAlias(true);
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pGraph = new Paint();
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pGraph.setTextAlign(Paint.Align.CENTER);
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pGraph.setAntiAlias(true);
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pGrid = new Paint();
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pGrid.setAntiAlias(true);
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}
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@Override
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protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
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{
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int width = MeasureSpec.getSize(widthMeasureSpec);
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int height = MeasureSpec.getSize(heightMeasureSpec);
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setMeasuredDimension(width, height);
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}
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@Override
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protected void onSizeChanged(int width, int height, int oldWidth, int oldHeight)
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{
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if(height < 9) height = 200;
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baseSize = height / 8;
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setScrollerBucketSize(baseSize);
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columnWidth = baseSize;
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columnHeight = 8 * baseSize;
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nColumns = width / baseSize;
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paddingTop = 0;
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pText.setTextSize(baseSize * 0.4f);
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pGraph.setTextSize(baseSize * 0.4f);
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pGraph.setStrokeWidth(baseSize * 0.1f);
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pGrid.setStrokeWidth(baseSize * 0.05f);
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em = pText.getFontSpacing();
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}
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public void refreshData()
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{
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if(isInEditMode())
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generateRandomData();
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else if(habit != null)
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frequency = habit.repetitions.getWeekdayFrequency();
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invalidate();
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}
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private void generateRandomData()
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{
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GregorianCalendar date = DateHelper.getStartOfTodayCalendar();
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date.set(Calendar.DAY_OF_MONTH, 1);
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Random rand = new Random();
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frequency.clear();
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for(int i = 0; i < 40; i++)
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{
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Integer values[] = new Integer[7];
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for(int j = 0; j < 7; j++)
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values[j] = rand.nextInt(5);
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frequency.put(date.getTimeInMillis(), values);
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date.add(Calendar.MONTH, -1);
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}
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}
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@Override
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protected void onDraw(Canvas canvas)
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{
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super.onDraw(canvas);
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rect.set(0, 0, nColumns * columnWidth, columnHeight);
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rect.offset(0, paddingTop);
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drawGrid(canvas, rect);
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pText.setTextAlign(Paint.Align.CENTER);
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pText.setColor(textColor);
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pGraph.setColor(primaryColor);
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prevRect.setEmpty();
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GregorianCalendar currentDate = DateHelper.getStartOfTodayCalendar();
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currentDate.set(Calendar.DAY_OF_MONTH, 1);
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currentDate.add(Calendar.MONTH, - nColumns + 2 - getDataOffset());
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for(int i = 0; i < nColumns - 1; i++)
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{
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rect.set(0, 0, columnWidth, columnHeight);
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rect.offset(i * columnWidth, 0);
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drawColumn(canvas, rect, currentDate);
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currentDate.add(Calendar.MONTH, 1);
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}
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}
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private void drawColumn(Canvas canvas, RectF rect, GregorianCalendar date)
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{
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Integer values[] = frequency.get(date.getTimeInMillis());
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float rowHeight = rect.height() / 8.0f;
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prevRect.set(rect);
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for (int i = 0; i < 7; i++)
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{
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rect.set(0, 0, columnWidth, columnWidth);
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rect.offset(prevRect.left, prevRect.top + columnWidth * i);
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if(values != null) drawMarker(canvas, rect, values[i]);
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rect.offset(0, rowHeight);
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}
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drawFooter(canvas, rect, date);
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}
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private void drawFooter(Canvas canvas, RectF rect, GregorianCalendar date)
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{
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Date time = date.getTime();
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canvas.drawText(dfMonth.format(time), rect.centerX(), rect.centerY() - 0.1f * em, pText);
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if(date.get(Calendar.MONTH) == 1)
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canvas.drawText(dfYear.format(time), rect.centerX(), rect.centerY() + 0.9f * em, pText);
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}
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private void drawMarker(Canvas canvas, RectF rect, Integer value)
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{
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float padding = rect.height() * 0.2f;
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float radius = (rect.height() - 2 * padding) / 2.0f / 4.0f * Math.min(value, 4);
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pGraph.setColor(colors[Math.min(3, Math.max(0, value - 1))]);
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canvas.drawCircle(rect.centerX(), rect.centerY(), radius, pGraph);
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}
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private void drawGrid(Canvas canvas, RectF rGrid)
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{
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int nRows = 7;
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float rowHeight = rGrid.height() / (nRows + 1);
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pText.setTextAlign(Paint.Align.LEFT);
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pText.setColor(textColor);
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pGrid.setColor(dimmedTextColor);
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for (int i = 0; i < nRows; i++)
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{
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canvas.drawText(wdays[i], rGrid.right - columnWidth, rGrid.top + rowHeight / 2 + 0.25f * em, pText);
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pGrid.setStrokeWidth(1f);
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canvas.drawLine(rGrid.left, rGrid.top, rGrid.right, rGrid.top, pGrid);
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rGrid.offset(0, rowHeight);
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}
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canvas.drawLine(rGrid.left, rGrid.top, rGrid.right, rGrid.top, pGrid);
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}
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public void setIsBackgroundTransparent(boolean isBackgroundTransparent)
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{
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this.isBackgroundTransparent = isBackgroundTransparent;
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createColors();
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}
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}
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