235 lines
7.9 KiB
C#
235 lines
7.9 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2019 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version. For more
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* information, see COPYING.
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*/
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using OpenRA.Primitives;
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using OpenRA.Widgets;
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namespace OpenRA.Mods.Common.Widgets
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{
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public class LineGraphWidget : Widget
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{
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public Func<IEnumerable<LineGraphSeries>> GetSeries;
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public Func<string> GetValueFormat;
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public Func<string> GetXAxisValueFormat;
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public Func<string> GetYAxisValueFormat;
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public Func<int> GetXAxisSize;
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public Func<int> GetYAxisSize;
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public Func<string> GetXAxisLabel;
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public Func<string> GetYAxisLabel;
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public Func<bool> GetDisplayFirstYAxisValue;
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public Func<string> GetLabelFont;
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public Func<string> GetAxisFont;
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public string ValueFormat = "{0}";
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public string XAxisValueFormat = "{0}";
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public string YAxisValueFormat = "{0}";
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public int XAxisSize = 10;
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public int YAxisSize = 10;
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public int XAxisTicksPerLabel = 1;
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public string XAxisLabel = "";
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public string YAxisLabel = "";
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public bool DisplayFirstYAxisValue = false;
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public string LabelFont;
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public string AxisFont;
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public Color BackgroundColorDark = ChromeMetrics.Get<Color>("TextContrastColorDark");
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public Color BackgroundColorLight = ChromeMetrics.Get<Color>("TextContrastColorLight");
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public int Padding = 5;
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public LineGraphWidget()
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{
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GetValueFormat = () => ValueFormat;
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GetXAxisValueFormat = () => XAxisValueFormat;
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GetYAxisValueFormat = () => YAxisValueFormat;
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GetXAxisSize = () => XAxisSize;
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GetYAxisSize = () => YAxisSize;
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GetXAxisLabel = () => XAxisLabel;
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GetYAxisLabel = () => YAxisLabel;
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GetDisplayFirstYAxisValue = () => DisplayFirstYAxisValue;
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GetLabelFont = () => LabelFont;
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GetAxisFont = () => AxisFont;
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}
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protected LineGraphWidget(LineGraphWidget other)
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: base(other)
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{
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GetSeries = other.GetSeries;
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GetValueFormat = other.GetValueFormat;
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GetXAxisValueFormat = other.GetXAxisValueFormat;
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GetYAxisValueFormat = other.GetYAxisValueFormat;
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GetXAxisSize = other.GetXAxisSize;
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GetYAxisSize = other.GetYAxisSize;
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GetXAxisLabel = other.GetXAxisLabel;
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GetYAxisLabel = other.GetYAxisLabel;
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GetDisplayFirstYAxisValue = other.GetDisplayFirstYAxisValue;
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GetLabelFont = other.GetLabelFont;
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GetAxisFont = other.GetAxisFont;
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ValueFormat = other.ValueFormat;
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XAxisValueFormat = other.XAxisValueFormat;
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YAxisValueFormat = other.YAxisValueFormat;
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XAxisSize = other.XAxisSize;
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YAxisSize = other.YAxisSize;
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XAxisTicksPerLabel = other.XAxisTicksPerLabel;
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XAxisLabel = other.XAxisLabel;
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YAxisLabel = other.YAxisLabel;
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DisplayFirstYAxisValue = other.DisplayFirstYAxisValue;
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LabelFont = other.LabelFont;
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AxisFont = other.AxisFont;
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BackgroundColorDark = other.BackgroundColorDark;
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BackgroundColorLight = other.BackgroundColorLight;
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Padding = other.Padding;
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}
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public override void Draw()
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{
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if (GetSeries == null || GetLabelFont == null)
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return;
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var series = GetSeries();
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if (!series.Any())
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return;
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var font = GetLabelFont();
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if (font == null)
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return;
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var cr = Game.Renderer.RgbaColorRenderer;
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var rect = RenderBounds;
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var labelFont = Game.Renderer.Fonts[font];
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var axisFont = Game.Renderer.Fonts[GetAxisFont()];
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var xAxisSize = GetXAxisSize();
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var yAxisSize = GetYAxisSize();
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var xAxisLabel = GetXAxisLabel();
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var xAxisLabelSize = axisFont.Measure(xAxisLabel);
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var xAxisPointLabelHeight = labelFont.Measure("0").Y;
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var graphBottomOffset = Padding * 2 + xAxisLabelSize.Y + xAxisPointLabelHeight;
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var height = rect.Height - (graphBottomOffset + Padding);
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var maxValue = series.Select(p => p.Points).SelectMany(d => d).Concat(new[] { 0f }).Max();
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var longestName = series.Select(s => s.Key).OrderByDescending(s => s.Length).FirstOrDefault() ?? "";
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var scale = 200 / Math.Max(5000, (float)Math.Ceiling(maxValue / 1000) * 1000);
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var widthMaxValue = labelFont.Measure(GetYAxisValueFormat().F(height / scale)).X;
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var widthLongestName = labelFont.Measure(longestName).X;
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// y axis label
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var yAxisLabel = GetYAxisLabel();
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var yAxisLabelSize = axisFont.Measure(yAxisLabel);
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var width = rect.Width - (Padding * 4 + widthMaxValue + widthLongestName + yAxisLabelSize.Y);
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var xStep = width / xAxisSize;
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var yStep = height / yAxisSize;
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var pointCount = series.Max(s => s.Points.Count());
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var pointStart = Math.Max(0, pointCount - xAxisSize);
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var pointEnd = Math.Max(pointCount, xAxisSize);
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var graphOrigin = new float2(rect.Left, rect.Bottom) + new float2(Padding * 2 + widthMaxValue + yAxisLabelSize.Y, -graphBottomOffset);
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var origin = new float2(rect.Left, rect.Bottom);
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var keyOffset = 0;
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foreach (var s in series)
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{
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var key = s.Key;
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var color = s.Color;
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var points = s.Points;
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if (points.Any())
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{
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points = points.Reverse().Take(xAxisSize).Reverse();
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var lastX = 0;
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var lastPoint = 0f;
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cr.DrawLine(
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points.Select((point, x) =>
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{
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lastX = x;
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lastPoint = point;
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return graphOrigin + new float3(x * xStep, -point * scale, 0);
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}), 1, color);
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if (lastPoint != 0f)
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labelFont.DrawTextWithShadow(GetValueFormat().F(lastPoint), graphOrigin + new float2(lastX * xStep, -lastPoint * scale - 2),
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color, BackgroundColorDark, BackgroundColorLight, 1);
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}
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labelFont.DrawTextWithShadow(key, new float2(rect.Right, rect.Top) + new float2(-(widthLongestName + Padding), 10 * keyOffset + 3),
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color, BackgroundColorDark, BackgroundColorLight, 1);
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keyOffset++;
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}
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// Draw x axis
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axisFont.DrawTextWithShadow(xAxisLabel, new float2(graphOrigin.X, origin.Y) + new float2(width / 2 - xAxisLabelSize.X / 2, -(xAxisLabelSize.Y + Padding)), Color.White, BackgroundColorDark, BackgroundColorLight, 1);
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// TODO: make this stuff not draw outside of the RenderBounds
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for (int n = pointStart, x = 0; n <= pointEnd; n++, x += xStep)
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{
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cr.DrawLine(graphOrigin + new float2(x, 0), graphOrigin + new float2(x, -5), 1, Color.White);
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if (n % XAxisTicksPerLabel != 0)
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continue;
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var xAxisText = GetXAxisValueFormat().F(n / XAxisTicksPerLabel);
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var xAxisTickTextWidth = labelFont.Measure(xAxisText).X;
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var xLocation = x - (xAxisTickTextWidth / 2);
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labelFont.DrawTextWithShadow(xAxisText, graphOrigin + new float2(xLocation, 2), Color.White, BackgroundColorDark, BackgroundColorLight, 1);
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}
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// Draw y axis
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axisFont.DrawTextWithShadow(yAxisLabel, new float2(origin.X, graphOrigin.Y) + new float2(5 - axisFont.TopOffset, -(height / 2 - yAxisLabelSize.X / 2)), Color.White, BackgroundColorDark, BackgroundColorLight, 1, (float)Math.PI / 2);
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for (var y = GetDisplayFirstYAxisValue() ? 0 : yStep; y <= height; y += yStep)
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{
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var yValue = y / scale;
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cr.DrawLine(graphOrigin + new float2(0, -y), graphOrigin + new float2(5, -y), 1, Color.White);
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var text = GetYAxisValueFormat().F(yValue);
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var textWidth = labelFont.Measure(text);
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var yLocation = y + (textWidth.Y + labelFont.TopOffset) / 2;
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labelFont.DrawTextWithShadow(text, graphOrigin + new float2(-(textWidth.X + 3), -yLocation), Color.White, BackgroundColorDark, BackgroundColorLight, 1);
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}
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// Bottom line
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cr.DrawLine(graphOrigin, graphOrigin + new float2(width, 0), 1, Color.White);
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// Left line
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cr.DrawLine(graphOrigin, graphOrigin + new float2(0, -height), 1, Color.White);
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}
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public override Widget Clone()
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{
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return new LineGraphWidget(this);
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}
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}
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public class LineGraphSeries
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{
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public string Key;
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public Color Color;
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public IEnumerable<float> Points;
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public LineGraphSeries(string key, Color color, IEnumerable<float> points)
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{
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Key = key;
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Color = color;
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Points = points;
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}
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}
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}
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