moel@158: /*
moel@1:  
moel@344:   This Source Code Form is subject to the terms of the Mozilla Public
moel@344:   License, v. 2.0. If a copy of the MPL was not distributed with this
moel@344:   file, You can obtain one at http://mozilla.org/MPL/2.0/.
moel@1:  
moel@344:   Copyright (C) 2009-2011 Michael Möller <mmoeller@openhardwaremonitor.org>
moel@344: 	
moel@1: */
moel@1: 
moel@1: using System;
moel@1: using System.Collections.Generic;
moel@1: using System.ComponentModel;
moel@1: using System.Drawing;
moel@1: using System.Drawing.Drawing2D;
moel@1: using System.Windows.Forms;
moel@1: using OpenHardwareMonitor.Hardware;
moel@1: 
moel@1: namespace OpenHardwareMonitor.GUI {
moel@158:   public class PlotPanel : UserControl {
moel@1: 
moel@326:     private PersistentSettings settings;
moel@326: 
moel@1:     private DateTime now;
moel@1:     private List<ISensor> clocks = new List<ISensor>();
moel@1:     private List<ISensor> temperatures = new List<ISensor>();
moel@1:     private List<ISensor> fans = new List<ISensor>();
moel@1:     private IDictionary<ISensor, Color> colors;
moel@1: 
moel@1:     private StringFormat centerlower;
moel@1:     private StringFormat centerleft;
moel@1:     private StringFormat lowerleft;
moel@1:     private Brush lightBrush;
moel@1:     private Pen lightPen;
moel@1: 
moel@326:     private UserRadioGroup timeWindowRadioGroup;
moel@326: 
moel@326:     public PlotPanel(PersistentSettings settings) {
moel@326:       this.settings = settings;
moel@326: 
moel@1:       this.SetStyle(ControlStyles.DoubleBuffer |
moel@1:         ControlStyles.UserPaint |
moel@158:         ControlStyles.AllPaintingInWmPaint |
moel@1:         ControlStyles.ResizeRedraw, true);
moel@1:       this.UpdateStyles();
moel@1: 
moel@326:       CreateContextMenu();
moel@326: 
moel@1:       centerlower = new StringFormat();
moel@1:       centerlower.Alignment = StringAlignment.Center;
moel@1:       centerlower.LineAlignment = StringAlignment.Near;
moel@1: 
moel@1:       centerleft = new StringFormat();
moel@1:       centerleft.Alignment = StringAlignment.Far;
moel@1:       centerleft.LineAlignment = StringAlignment.Center;
moel@1: 
moel@1:       lowerleft = new StringFormat();
moel@1:       lowerleft.Alignment = StringAlignment.Far;
moel@1:       lowerleft.LineAlignment = StringAlignment.Near;
moel@1: 
moel@1:       lightBrush = new SolidBrush(Color.FromArgb(245, 245, 245));
moel@1:       lightPen = new Pen(Color.FromArgb(200, 200, 200));
moel@1:     }
moel@1: 
moel@326:     private void CreateContextMenu() {
moel@326:       MenuItem timeWindow = new MenuItem("Time Scale");
moel@326:       
moel@326:       MenuItem[] timeWindowMenuItems = 
moel@326:         { new MenuItem("Auto"), 
moel@326:           new MenuItem("5 min"),
moel@326:           new MenuItem("10 min"),
moel@326:           new MenuItem("20 min"),
moel@326:           new MenuItem("30 min"),
moel@326:           new MenuItem("45 min"),
moel@326:           new MenuItem("1 h"),
moel@326:           new MenuItem("1.5 h"),
moel@326:           new MenuItem("2 h"),
moel@326:           new MenuItem("3 h"),
moel@326:           new MenuItem("6 h"),
moel@326:           new MenuItem("12 h"),
moel@326:           new MenuItem("24 h") };
moel@326: 
moel@326:       foreach (MenuItem mi in timeWindowMenuItems)
moel@326:         timeWindow.MenuItems.Add(mi);
moel@326: 
moel@326:       timeWindowRadioGroup = new UserRadioGroup("timeWindow", 0, 
moel@326:         timeWindowMenuItems, settings);
moel@326: 
moel@326:       this.ContextMenu = new ContextMenu();
moel@326:       this.ContextMenu.MenuItems.Add(timeWindow);
moel@326:     }
moel@326: 
moel@1:     private List<float> GetTemperatureGrid() {
moel@1: 
moel@1:       float? minTempNullable = null;
moel@1:       float? maxTempNullable = null;
moel@1:       foreach (ISensor sensor in temperatures) {
moel@159:         IEnumerable<SensorValue> values = sensor.Values;
moel@159:         foreach (SensorValue value in values) {
moel@298:           if (!float.IsNaN(value.Value)) {
moel@298:             if (!minTempNullable.HasValue || minTempNullable > value.Value)
moel@298:               minTempNullable = value.Value;
moel@298:             if (!maxTempNullable.HasValue || maxTempNullable < value.Value)
moel@298:               maxTempNullable = value.Value;
moel@298:           }
moel@1:         }
moel@1:       }
moel@1:       if (!minTempNullable.HasValue) {
moel@1:         minTempNullable = 20;
moel@1:         maxTempNullable = 30;
moel@1:       }
moel@1: 
moel@1:       float maxTemp = (float)Math.Ceiling(maxTempNullable.Value / 10) * 10;
moel@1:       float minTemp = (float)Math.Floor(minTempNullable.Value / 10) * 10;
moel@158:       if (maxTemp == minTemp)
moel@158:         maxTemp += 10;
moel@158: 
moel@1:       int countTempMax = 4;
moel@1:       float deltaTemp = maxTemp - minTemp;
moel@1:       int countTemp = (int)Math.Round(deltaTemp / 2);
moel@1:       if (countTemp > countTempMax)
moel@1:         countTemp = (int)Math.Round(deltaTemp / 5);
moel@1:       if (countTemp > countTempMax)
moel@1:         countTemp = (int)Math.Round(deltaTemp / 10);
moel@1:       if (countTemp > countTempMax)
moel@1:         countTemp = (int)Math.Round(deltaTemp / 20);
moel@1: 
moel@1:       List<float> grid = new List<float>(countTemp + 1);
moel@1:       for (int i = 0; i <= countTemp; i++) {
moel@1:         grid.Add(minTemp + i * deltaTemp / countTemp);
moel@1:       }
moel@1:       return grid;
moel@1:     }
moel@1: 
moel@1:     private List<float> GetTimeGrid() {
moel@1: 
moel@326:       float maxTime;
moel@326:       if (timeWindowRadioGroup.Value == 0) { // Auto
moel@326:         maxTime = 5;
moel@326:         if (temperatures.Count > 0) {
moel@326:           IEnumerator<SensorValue> enumerator =
moel@326:             temperatures[0].Values.GetEnumerator();
moel@326:           if (enumerator.MoveNext()) {
moel@326:             maxTime = (float)(now - enumerator.Current.Time).TotalMinutes;
moel@326:           }
moel@1:         }
moel@326:       } else {
moel@326:         float[] maxTimes = 
moel@326:           { 5, 10, 20, 30, 45, 60, 90, 120, 180, 360, 720, 1440 };
moel@326: 
moel@326:         maxTime = maxTimes[timeWindowRadioGroup.Value - 1];
moel@1:       }
moel@1: 
moel@1:       int countTime = 10;
moel@1:       float deltaTime = 5;
moel@326:       while (deltaTime + 1 <= maxTime && deltaTime < 10)
moel@1:         deltaTime += 1;
moel@326:       while (deltaTime + 2 <= maxTime && deltaTime < 30)
moel@1:         deltaTime += 2;
moel@326:       while (deltaTime + 5 <= maxTime && deltaTime < 100)
moel@1:         deltaTime += 5;
moel@326:       while (deltaTime + 50 <= maxTime && deltaTime < 1000)
moel@298:         deltaTime += 50;
moel@326:       while (deltaTime + 100 <= maxTime && deltaTime < 10000)
moel@298:         deltaTime += 100;
moel@1: 
moel@1:       List<float> grid = new List<float>(countTime + 1);
moel@1:       for (int i = 0; i <= countTime; i++) {
moel@1:         grid.Add(i * deltaTime / countTime);
moel@1:       }
moel@1:       return grid;
moel@1:     }
moel@1: 
moel@1:     protected override void OnPaint(PaintEventArgs e) {
moel@314:       now = DateTime.UtcNow - new TimeSpan(0, 0, 4);
moel@1: 
moel@1:       List<float> timeGrid = GetTimeGrid();
moel@1:       List<float> tempGrid = GetTemperatureGrid();
moel@1: 
moel@1:       Graphics g = e.Graphics;
moel@1: 
moel@1:       RectangleF r =
moel@1:         new RectangleF(0, 0, Bounds.Width, Bounds.Height);
moel@1: 
moel@1:       float ml = 40;
moel@1:       float mr = 15;
moel@1:       float x0 = r.X + ml;
moel@1:       float w = r.Width - ml - mr;
moel@1: 
moel@1:       float mt = 15;
moel@1:       float mb = 28;
moel@1:       float y0 = r.Y + mt;
moel@1:       float h = r.Height - mt - mb;
moel@1: 
moel@1:       float leftScaleSpace = 5;
moel@1:       float bottomScaleSpace = 5;
moel@158: 
moel@1:       g.Clear(Color.White);
moel@1: 
moel@1:       if (w > 0 && h > 0) {
moel@1:         g.FillRectangle(lightBrush, x0, y0, w, h);
moel@1: 
moel@1:         g.SmoothingMode = SmoothingMode.HighQuality;
moel@1:         for (int i = 0; i < timeGrid.Count; i++) {
moel@1:           float x = x0 + i * w / (timeGrid.Count - 1);
moel@1:           g.DrawLine(lightPen, x, y0, x, y0 + h);
moel@1:         }
moel@1: 
moel@1:         for (int i = 0; i < tempGrid.Count; i++) {
moel@1:           float y = y0 + i * h / (tempGrid.Count - 1);
moel@1:           g.DrawLine(lightPen, x0, y, x0 + w, y);
moel@1:         }
moel@1: 
moel@1:         float deltaTemp = tempGrid[tempGrid.Count - 1] - tempGrid[0];
moel@1:         float deltaTime = timeGrid[timeGrid.Count - 1];
moel@1:         foreach (ISensor sensor in temperatures) {
moel@1:           using (Pen pen = new Pen(colors[sensor])) {
moel@159:             IEnumerable<SensorValue> values = sensor.Values;
moel@1:             PointF last = new PointF();
moel@1:             bool first = true;
moel@298:             foreach (SensorValue v in values) {
moel@298:               if (!float.IsNaN(v.Value)) {
moel@298:                 PointF point = new PointF(
moel@298:                     x0 + w - w * (float)(now - v.Time).TotalMinutes / deltaTime,
moel@298:                     y0 + h - h * (v.Value - tempGrid[0]) / deltaTemp);
moel@298:                 if (!first) 
moel@298:                   g.DrawLine(pen, last, point);                
moel@298:                 last = point;
moel@298:                 first = false;
moel@298:               } else {
moel@298:                 first = true;
moel@298:               }
moel@1:             }
moel@1:           }
moel@1:         }
moel@1: 
moel@1:         g.SmoothingMode = SmoothingMode.None;
moel@1:         g.FillRectangle(Brushes.White, 0, 0, x0, r.Height);
moel@158:         g.FillRectangle(Brushes.White, x0 + w + 1, 0, r.Width - x0 - w,
moel@1:           r.Height);
moel@1: 
moel@1:         for (int i = 1; i < timeGrid.Count; i++) {
moel@158:           float x = x0 + (timeGrid.Count - 1 - i) * w / (timeGrid.Count - 1);
moel@158:           g.DrawString(timeGrid[i].ToString(), Font, Brushes.Black, x,
moel@1:             y0 + h + bottomScaleSpace, centerlower);
moel@1:         }
moel@1: 
moel@1:         for (int i = 0; i < tempGrid.Count - 1; i++) {
moel@1:           float y = y0 + (tempGrid.Count - 1 - i) * h / (tempGrid.Count - 1);
moel@158:           g.DrawString(tempGrid[i].ToString(), Font, Brushes.Black,
moel@1:             x0 - leftScaleSpace, y, centerleft);
moel@1:         }
moel@1: 
moel@1:         g.SmoothingMode = SmoothingMode.HighQuality;
moel@1:         g.DrawString("[°C]", Font, Brushes.Black, x0 - leftScaleSpace, y0,
moel@158:           lowerleft);
moel@1:         g.DrawString("[min]", Font, Brushes.Black, x0 + w,
moel@158:           y0 + h + bottomScaleSpace, lowerleft);
moel@1:       }
moel@1:     }
moel@1: 
moel@158:     public void SetSensors(List<ISensor> sensors,
moel@158:       IDictionary<ISensor, Color> colors) {
moel@1:       this.colors = colors;
moel@1:       List<ISensor> clocks = new List<ISensor>();
moel@1:       List<ISensor> temperatures = new List<ISensor>();
moel@1:       List<ISensor> fans = new List<ISensor>();
moel@1:       foreach (ISensor sensor in sensors)
moel@1:         switch (sensor.SensorType) {
moel@1:           case SensorType.Clock: clocks.Add(sensor); break;
moel@1:           case SensorType.Temperature: temperatures.Add(sensor); break;
moel@1:           case SensorType.Fan: fans.Add(sensor); break;
moel@1:         }
moel@1:       this.clocks = clocks;
moel@1:       this.temperatures = temperatures;
moel@1:       this.fans = fans;
moel@1:       Invalidate();
moel@1:     }
moel@1: 
moel@1:   }
moel@1: }