moel@158: /*
moel@1:   
moel@1:   Version: MPL 1.1/GPL 2.0/LGPL 2.1
moel@1: 
moel@1:   The contents of this file are subject to the Mozilla Public License Version
moel@1:   1.1 (the "License"); you may not use this file except in compliance with
moel@1:   the License. You may obtain a copy of the License at
moel@1:  
moel@1:   http://www.mozilla.org/MPL/
moel@1: 
moel@1:   Software distributed under the License is distributed on an "AS IS" basis,
moel@1:   WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
moel@1:   for the specific language governing rights and limitations under the License.
moel@1: 
moel@1:   The Original Code is the Open Hardware Monitor code.
moel@1: 
moel@1:   The Initial Developer of the Original Code is 
moel@1:   Michael Möller <m.moeller@gmx.ch>.
moel@1:   Portions created by the Initial Developer are Copyright (C) 2009-2010
moel@1:   the Initial Developer. All Rights Reserved.
moel@1: 
moel@1:   Contributor(s):
moel@1: 
moel@1:   Alternatively, the contents of this file may be used under the terms of
moel@1:   either the GNU General Public License Version 2 or later (the "GPL"), or
moel@1:   the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
moel@1:   in which case the provisions of the GPL or the LGPL are applicable instead
moel@1:   of those above. If you wish to allow use of your version of this file only
moel@1:   under the terms of either the GPL or the LGPL, and not to allow others to
moel@1:   use your version of this file under the terms of the MPL, indicate your
moel@1:   decision by deleting the provisions above and replace them with the notice
moel@1:   and other provisions required by the GPL or the LGPL. If you do not delete
moel@1:   the provisions above, a recipient may use your version of this file under
moel@1:   the terms of any one of the MPL, the GPL or the LGPL.
moel@1:  
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@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@1:     public PlotPanel() {
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@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@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@159:           if (!minTempNullable.HasValue || minTempNullable > value.Value)
moel@159:             minTempNullable = value.Value;
moel@159:           if (!maxTempNullable.HasValue || maxTempNullable < value.Value)
moel@159:             maxTempNullable = value.Value;
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@158:       float maxTime = 5;
moel@1:       if (temperatures.Count > 0) {
moel@159:         IEnumerator<SensorValue> enumerator =
moel@159:           temperatures[0].Values.GetEnumerator();
moel@1:         if (enumerator.MoveNext()) {
moel@1:           maxTime = (float)(now - enumerator.Current.Time).TotalMinutes;
moel@1:         }
moel@1:       }
moel@1: 
moel@1:       int countTime = 10;
moel@1:       float deltaTime = 5;
moel@1:       while (deltaTime + 1 < maxTime && deltaTime < 10)
moel@1:         deltaTime += 1;
moel@1:       while (deltaTime + 2 < maxTime && deltaTime < 30)
moel@1:         deltaTime += 2;
moel@1:       while (deltaTime + 5 < maxTime && deltaTime < 100)
moel@1:         deltaTime += 5;
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@1: 
moel@1:       now = DateTime.Now - 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@159:             foreach (SensorValue value in values) {
moel@1:               PointF point = new PointF(
moel@159:                   x0 + w - w * (float)(now - value.Time).TotalMinutes / deltaTime,
moel@159:                   y0 + h - h * (value.Value - tempGrid[0]) / deltaTemp);
moel@1:               if (!first)
moel@1:                 g.DrawLine(pen, last, point);
moel@1:               last = point;
moel@1:               first = false;
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: }