870 lines
34 KiB
C#
870 lines
34 KiB
C#
/******************************************************************************
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* SunnyUI 开源控件库、工具类库、扩展类库、多页面开发框架。
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* CopyRight (C) 2012-2021 ShenYongHua(沈永华).
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* QQ群：56829229 QQ：17612584 EMail：SunnyUI@QQ.Com
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*
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* Blog: https://www.cnblogs.com/yhuse
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* Gitee: https://gitee.com/yhuse/SunnyUI
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* GitHub: https://github.com/yhuse/SunnyUI
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*
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* SunnyUI.dll can be used for free under the GPL-3.0 license.
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* If you use this code, please keep this note.
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* 如果您使用此代码，请保留此说明。
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******************************************************************************
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* 文件名称: UILineChart.cs
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* 文件说明: 曲线图
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* 当前版本: V3.0
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* 创建日期: 2020-10-01
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*
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* 2020-10-01: V2.2.8 完成曲线图表
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* 2021-04-06: V3.0.2 增加鼠标框选放大，可多次放大，右键点击恢复一次，双击恢复默认
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* 2021-04-15: V3.0.3 有右键菜单时，取消恢复上次缩放，可在右键菜单增加节点，调用ZoomBack()方法
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* 2021-06-18: V3.0.4 显示鼠标点格式更新
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* 2021-07-22: V3.0.5 可自定义背景色，增加实时数据的Demo
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* 2021-08-23: V3.0.6 增加可只显示点的模式
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* 2021-10-02: V3.0.8 支持数据包括Nan，修改自定义最大值最小值为无穷时出错的问题
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* 2021-10-14: V3.0.8 修改图线显示超出范围的问题
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******************************************************************************/
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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namespace Sunny.UI
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{
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[ToolboxItem(true)]
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public class UILineChart : UIChart
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{
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protected bool NeedDraw;
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protected override void OnSizeChanged(EventArgs e)
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{
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base.OnSizeChanged(e);
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CalcData();
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}
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[Browsable(false)]
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public Point DrawOrigin => new Point(Option.Grid.Left, Height - Option.Grid.Bottom);
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[Browsable(false)]
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public Size DrawSize => new Size(Width - Option.Grid.Left - Option.Grid.Right, Height - Option.Grid.Top - Option.Grid.Bottom);
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[Browsable(false)]
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public Rectangle DrawRect => new Rectangle(Option.Grid.Left, Option.Grid.Top, DrawSize.Width, DrawSize.Height);
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protected override void CalcData()
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{
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NeedDraw = false;
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if (Option?.Series == null || Option.Series.Count == 0) return;
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if (DrawSize.Width <= 0 || DrawSize.Height <= 0) return;
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CalcAxises();
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foreach (var series in Option.Series.Values)
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{
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series.CalcData(this, XScale, YScale);
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}
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NeedDraw = true;
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}
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public override void Refresh()
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{
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base.Refresh();
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if (Option != null)
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{
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SetOption(Option);
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}
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CalcData();
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}
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protected UIScale XScale;
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protected UIScale YScale;
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private double[] YLabels;
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private double[] XLabels;
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protected void CalcAxises()
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{
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if (Option.XAxisType == UIAxisType.DateTime)
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XScale = new UIDateScale();
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else
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XScale = new UILinearScale();
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YScale = new UILinearScale();
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//Y轴
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{
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Option.GetAllDataYRange(out double min, out double max);
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if (min > 0 && max > 0 && !Option.YAxis.Scale) min = 0;
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if (min < 0 && max < 0 && !Option.YAxis.Scale) max = 0;
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YScale.SetRange(min, max);
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if (!Option.YAxis.MaxAuto) YScale.Max = Option.YAxis.Max;
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if (!Option.YAxis.MinAuto) YScale.Min = Option.YAxis.Min;
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if (YScale.Max.IsNanOrInfinity() || YScale.Min.IsNanOrInfinity())
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{
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YScale.Max = max;
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YScale.Min = min;
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}
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YScale.AxisChange();
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YLabels = YScale.CalcLabels();
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}
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//X轴
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{
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Option.GetAllDataXRange(out double min, out double max);
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XScale.SetRange(min, max);
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if (!Option.XAxis.MaxAuto) XScale.Max = Option.XAxis.Max;
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if (!Option.XAxis.MinAuto) XScale.Min = Option.XAxis.Min;
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XScale.AxisChange();
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XLabels = XScale.CalcLabels();
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}
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}
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[Browsable(false), DefaultValue(null)]
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public UILineOption Option
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{
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get
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{
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UIOption option = BaseOption ?? EmptyOption;
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return (UILineOption)option;
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}
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// set
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// {
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// SetOption(value);
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// }
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}
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protected override void CreateEmptyOption()
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{
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if (emptyOption != null) return;
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UILineOption option = new UILineOption();
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option.Title = new UITitle();
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option.Title.Text = "SunnyUI";
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option.Title.SubText = "LineChart";
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var series = option.AddSeries(new UILineSeries("Line1"));
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for (int i = 0; i < 200; i++)
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{
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series.Add(i, 6 * Math.Sin(i * 3 * Math.PI / 180));
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}
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series = option.AddSeries(new UILineSeries("Line2"));
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for (int i = 0; i < 150; i++)
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{
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series.Add(i, 6 * Math.Cos(i * 5 * Math.PI / 180));
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}
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series.Smooth = true;
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option.XAxis.Name = "数值";
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option.YAxis.Name = "数值";
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emptyOption = option;
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}
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protected override void DrawOption(Graphics g)
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{
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if (Option == null) return;
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if (!NeedDraw) return;
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if (bmp == null || bmp.Width != Width || bmp.Height != Height)
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{
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bmp?.Dispose();
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bmp = new Bitmap(Width, Height);
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}
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if (bmpGreater == null || bmpGreater.Width != Width || bmpGreater.Height != Height)
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{
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bmpGreater?.Dispose();
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bmpGreater = new Bitmap(Width, Height);
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}
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if (bmpLess == null || bmpLess.Width != Width || bmpLess.Height != Height)
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{
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bmpLess?.Dispose();
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bmpLess = new Bitmap(Width, Height);
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}
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// if (BarOption.ToolTip != null && BarOption.ToolTip.AxisPointer.Type == UIAxisPointerType.Shadow) DrawToolTip(g);
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DrawTitle(g, Option.Title);
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DrawSeries(g);
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// if (BarOption.ToolTip != null && BarOption.ToolTip.AxisPointer.Type == UIAxisPointerType.Line) DrawToolTip(g);
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DrawLegend(g, Option.Legend);
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DrawAxis(g);
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DrawAxisScales(g);
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DrawPointSymbols(g);
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DrawOther(g);
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}
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private void DrawAxis(Graphics g)
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{
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g.DrawRectangle(ForeColor, Option.Grid.Left, Option.Grid.Top, DrawSize.Width, DrawSize.Height);
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float zeroPos = YScale.CalcYPixel(0, DrawOrigin.Y, DrawSize.Height);
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if (zeroPos > Option.Grid.Top && zeroPos < Height - Option.Grid.Bottom)
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{
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g.DrawLine(ForeColor, DrawOrigin.X, zeroPos, DrawOrigin.X + DrawSize.Width, zeroPos);
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}
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if (XScale == null || YScale == null) return;
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//X Tick
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if (Option.XAxis.AxisTick.Show)
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{
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float[] labels = XScale.CalcXPixels(XLabels, DrawOrigin.X, DrawSize.Width);
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for (int i = 0; i < labels.Length; i++)
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{
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float x = labels[i];
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if (x <= Option.Grid.Left || x >= Width - Option.Grid.Right) continue;
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if (Option.XAxis.AxisLabel.Show)
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{
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string label;
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if (Option.XAxisType == UIAxisType.DateTime)
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{
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if (Option.XAxis.AxisLabel.AutoFormat)
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label = new DateTimeInt64(XLabels[i]).ToString(XScale.Format);
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else
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label = new DateTimeInt64(XLabels[i]).ToString(Option.XAxis.AxisLabel.DateTimeFormat);
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}
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else
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{
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if (Option.XAxis.AxisLabel.AutoFormat)
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label = XLabels[i].ToString(XScale.Format);
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else
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label = XLabels[i].ToString("F" + Option.XAxis.AxisLabel.DecimalCount);
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}
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SizeF sf = g.MeasureString(label, SubFont);
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g.DrawString(label, SubFont, ForeColor, x - sf.Width / 2.0f, DrawOrigin.Y + Option.XAxis.AxisTick.Length);
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}
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if (x.Equals(DrawOrigin.X)) continue;
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if (x.Equals(DrawOrigin.X + DrawSize.Width)) continue;
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using (Pen pn = new Pen(ForeColor))
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{
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pn.DashStyle = DashStyle.Dash;
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pn.DashPattern = new float[] { 3, 3 };
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g.DrawLine(pn, x, DrawOrigin.Y, x, Option.Grid.Top);
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}
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}
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SizeF sfName = g.MeasureString(Option.XAxis.Name, SubFont);
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g.DrawString(Option.XAxis.Name, SubFont, ForeColor,
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DrawOrigin.X + (DrawSize.Width - sfName.Width) / 2.0f,
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DrawOrigin.Y + Option.XAxis.AxisTick.Length + sfName.Height);
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}
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//Y Tick
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if (Option.YAxis.AxisTick.Show)
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{
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float[] labels = YScale.CalcYPixels(YLabels, DrawOrigin.Y, DrawSize.Height);
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float widthMax = 0;
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for (int i = 0; i < labels.Length; i++)
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{
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float y = labels[i];
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if (y <= Option.Grid.Top || y >= Height - Option.Grid.Bottom) continue;
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if (Option.YAxis.AxisLabel.Show)
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{
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string label = YLabels[i].ToString(YScale.Format);
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SizeF sf = g.MeasureString(label, SubFont);
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widthMax = Math.Max(widthMax, sf.Width);
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g.DrawString(label, SubFont, ForeColor, DrawOrigin.X - Option.YAxis.AxisTick.Length - sf.Width, y - sf.Height / 2.0f);
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}
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if (y.Equals(DrawOrigin.Y)) continue;
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if (y.Equals(DrawOrigin.X - DrawSize.Height)) continue;
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using (Pen pn = new Pen(ForeColor))
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{
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pn.DashStyle = DashStyle.Dash;
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pn.DashPattern = new float[] { 3, 3 };
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g.DrawLine(pn, DrawOrigin.X, y, Width - Option.Grid.Right, y);
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}
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}
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SizeF sfName = g.MeasureString(Option.YAxis.Name, SubFont);
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float xx = DrawOrigin.X - Option.YAxis.AxisTick.Length - widthMax - sfName.Height / 2.0f;
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float yy = Option.Grid.Top + DrawSize.Height / 2.0f;
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g.DrawStringRotateAtCenter(Option.YAxis.Name, SubFont, ForeColor, new PointF(xx, yy), 270);
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}
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}
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protected virtual void DrawSeries(Graphics g, Color color, UILineSeries series)
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{
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if (series.Points.Count == 0)
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{
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return;
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}
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if (series.Points.Count == 1)
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{
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g.DrawPoint(color, series.Points[0], 4);
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return;
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}
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if (series.Points.Count == 2)
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{
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using (Pen pen = new Pen(color, series.Width))
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{
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g.DrawTwoPoints(pen, series.Points[0], series.Points[1], DrawRect);
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}
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return;
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}
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if (series.ShowLine || series.Symbol == UILinePointSymbol.None)
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{
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using (Pen pen = new Pen(color, series.Width))
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{
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g.SetHighQuality();
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if (series.ContainsNan || !series.Smooth)
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{
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for (int i = 0; i < series.Points.Count - 1; i++)
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{
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g.DrawTwoPoints(pen, series.Points[i], series.Points[i + 1], DrawRect);
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}
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}
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else
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{
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g.DrawCurve(pen, series.Points.ToArray());
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}
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g.SetDefaultQuality();
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}
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}
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}
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Bitmap bmp, bmpGreater, bmpLess;
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private void DrawSeries(Graphics g)
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{
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if (YScale == null) return;
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using (Graphics graphics = bmp.Graphics())
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{
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graphics.FillRectangle(FillColor, 0, 0, Width, Height);
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}
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using (Graphics graphics = bmpGreater.Graphics())
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{
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graphics.FillRectangle(FillColor, 0, 0, Width, Height);
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}
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using (Graphics graphics = bmpLess.Graphics())
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{
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graphics.FillRectangle(FillColor, 0, 0, Width, Height);
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}
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int idx = 0;
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float wTop = Option.Grid.Top;
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float wBottom = Height - Option.Grid.Bottom;
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float wLeft = Option.Grid.Left;
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float wRight = Width - Option.Grid.Right;
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if (Option.GreaterWarningArea == null && Option.LessWarningArea == null)
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{
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foreach (var series in Option.Series.Values)
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{
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Color color = series.Color;
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if (!series.CustomColor) color = ChartStyle.GetColor(idx);
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using (Graphics graphics = bmp.Graphics())
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{
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DrawSeries(graphics, color, series);
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}
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idx++;
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}
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}
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else
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{
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foreach (var series in Option.Series.Values)
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{
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Color color = series.Color;
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if (!series.CustomColor) color = ChartStyle.GetColor(idx);
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using (Graphics graphics = bmp.Graphics())
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{
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DrawSeries(graphics, color, series);
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}
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if (Option.GreaterWarningArea != null)
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{
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using Graphics graphics = bmpGreater.Graphics();
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DrawSeries(graphics, Option.GreaterWarningArea.Color, series);
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}
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if (Option.LessWarningArea != null)
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{
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using Graphics graphics = bmpLess.Graphics();
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DrawSeries(graphics, Option.LessWarningArea.Color, series);
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}
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idx++;
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}
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if (Option.GreaterWarningArea != null)
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{
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wTop = YScale.CalcYPixel(Option.GreaterWarningArea.Value, DrawOrigin.Y, DrawSize.Height);
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if (wTop < Option.Grid.Top)
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{
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wTop = Option.Grid.Top;
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}
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else
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{
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if (wTop > Height - Option.Grid.Bottom)
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wTop = Height - Option.Grid.Bottom;
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g.DrawImage(bmpGreater, new Rectangle((int)wLeft, Option.Grid.Top, (int)(wRight - wLeft), (int)(wTop - Option.Grid.Top)),
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new Rectangle((int)wLeft, Option.Grid.Top, (int)(wRight - wLeft), (int)(wTop - Option.Grid.Top)), GraphicsUnit.Pixel);
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}
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}
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if (Option.LessWarningArea != null)
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{
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wBottom = YScale.CalcYPixel(Option.LessWarningArea.Value, DrawOrigin.Y, DrawSize.Height);
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if (wBottom > Height - Option.Grid.Bottom)
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{
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wBottom = Height - Option.Grid.Bottom;
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}
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else
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{
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if (wBottom < Option.Grid.Top)
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wBottom = Option.Grid.Top;
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g.DrawImage(bmpLess, new Rectangle((int)wLeft, (int)wBottom, (int)(wRight - wLeft), (int)(Height - Option.Grid.Bottom - wBottom)),
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new Rectangle((int)wLeft, (int)wBottom, (int)(wRight - wLeft), (int)(Height - Option.Grid.Bottom - wBottom)), GraphicsUnit.Pixel);
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}
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}
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}
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g.DrawImage(bmp, new Rectangle((int)wLeft, (int)wTop, (int)(wRight - wLeft), (int)(wBottom - wTop)),
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new Rectangle((int)wLeft, (int)wTop, (int)(wRight - wLeft), (int)(wBottom - wTop)), GraphicsUnit.Pixel);
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}
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private void DrawPointSymbols(Graphics g)
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{
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foreach (var series in Option.Series.Values)
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{
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Color color = series.Color;
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if (series.SymbolColor.IsValid()) color = series.SymbolColor;
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if (series.Symbol != UILinePointSymbol.None)
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{
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using (Brush br = new SolidBrush(FillColor))
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using (Pen pn = new Pen(color, series.SymbolLineWidth))
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{
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foreach (var p in series.Points)
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{
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if (p.X < Option.Grid.Left || p.X > Width - Option.Grid.Right) continue;
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if (p.Y < Option.Grid.Top || p.Y > Height - Option.Grid.Bottom) continue;
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if (double.IsNaN(p.X) || double.IsNaN(p.Y)) continue;
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switch (series.Symbol)
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{
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case UILinePointSymbol.Square:
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g.FillRectangle(br, p.X - series.SymbolSize, p.Y - series.SymbolSize, series.SymbolSize * 2, series.SymbolSize * 2);
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g.DrawRectangle(pn, p.X - series.SymbolSize, p.Y - series.SymbolSize, series.SymbolSize * 2, series.SymbolSize * 2);
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break;
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case UILinePointSymbol.Diamond:
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{
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PointF pt1 = new PointF(p.X - series.SymbolSize, p.Y);
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PointF pt2 = new PointF(p.X, p.Y - series.SymbolSize);
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PointF pt3 = new PointF(p.X + series.SymbolSize, p.Y);
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PointF pt4 = new PointF(p.X, p.Y + series.SymbolSize);
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PointF[] pts = { pt1, pt2, pt3, pt4, pt1 };
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g.SetHighQuality();
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GraphicsPath path = pts.Path();
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g.FillPath(br, path);
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g.DrawPath(pn, path);
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path.Dispose();
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}
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break;
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case UILinePointSymbol.Triangle:
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{
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PointF pt1 = new PointF(p.X, p.Y - series.SymbolSize);
|
||
PointF pt2 = new PointF(p.X - series.SymbolSize * 0.866f, p.Y + series.SymbolSize * 0.5f);
|
||
PointF pt3 = new PointF(p.X + series.SymbolSize * 0.866f, p.Y + series.SymbolSize * 0.5f);
|
||
PointF[] pts = { pt1, pt2, pt3, pt1 };
|
||
g.SetHighQuality();
|
||
GraphicsPath path = pts.Path();
|
||
g.FillPath(br, path);
|
||
g.DrawPath(pn, path);
|
||
path.Dispose();
|
||
}
|
||
break;
|
||
case UILinePointSymbol.Circle:
|
||
g.SetHighQuality();
|
||
g.FillEllipse(br, p.X - series.SymbolSize, p.Y - series.SymbolSize, series.SymbolSize * 2, series.SymbolSize * 2);
|
||
g.DrawEllipse(pn, p.X - series.SymbolSize, p.Y - series.SymbolSize, series.SymbolSize * 2, series.SymbolSize * 2);
|
||
break;
|
||
case UILinePointSymbol.Plus:
|
||
g.DrawLine(pn, p.X - series.SymbolSize, p.Y, p.X + series.SymbolSize, p.Y);
|
||
g.DrawLine(pn, p.X, p.Y - series.SymbolSize, p.X, p.Y + series.SymbolSize);
|
||
break;
|
||
case UILinePointSymbol.Star:
|
||
g.SetHighQuality();
|
||
g.DrawLine(pn, p.X, p.Y - series.SymbolSize, p.X, p.Y + series.SymbolSize);
|
||
g.DrawLine(pn, p.X - series.SymbolSize * 0.866f, p.Y + series.SymbolSize * 0.5f,
|
||
p.X + series.SymbolSize * 0.866f, p.Y - series.SymbolSize * 0.5f);
|
||
g.DrawLine(pn, p.X - series.SymbolSize * 0.866f, p.Y - series.SymbolSize * 0.5f,
|
||
p.X + series.SymbolSize * 0.866f, p.Y + series.SymbolSize * 0.5f);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
g.SetDefaultQuality();
|
||
}
|
||
}
|
||
}
|
||
|
||
private void DrawAxisScales(Graphics g)
|
||
{
|
||
if (YScale == null) return;
|
||
|
||
foreach (var line in Option.YAxisScaleLines)
|
||
{
|
||
float pos = YScale.CalcYPixel(line.Value, DrawOrigin.Y, DrawSize.Height);
|
||
if (pos <= Option.Grid.Top || pos >= Height - Option.Grid.Bottom) continue;
|
||
|
||
using (Pen pn = new Pen(line.Color, line.Size))
|
||
{
|
||
g.DrawLine(pn, DrawOrigin.X + 1, pos, Width - Option.Grid.Right - 1, pos);
|
||
}
|
||
|
||
SizeF sf = g.MeasureString(line.Name, SubFont);
|
||
|
||
if (line.Left == UILeftAlignment.Left)
|
||
g.DrawString(line.Name, SubFont, line.Color, DrawOrigin.X + 4, pos - 2 - sf.Height);
|
||
if (line.Left == UILeftAlignment.Center)
|
||
g.DrawString(line.Name, SubFont, line.Color, DrawOrigin.X + (Width - Option.Grid.Left - Option.Grid.Right - sf.Width) / 2, pos - 2 - sf.Height);
|
||
if (line.Left == UILeftAlignment.Right)
|
||
g.DrawString(line.Name, SubFont, line.Color, Width - sf.Width - 4 - Option.Grid.Right, pos - 2 - sf.Height);
|
||
}
|
||
|
||
int idx = 0;
|
||
foreach (var line in Option.XAxisScaleLines)
|
||
{
|
||
float pos = XScale.CalcXPixel(line.Value, DrawOrigin.X, DrawSize.Width);
|
||
if (pos <= Option.Grid.Left || pos >= Width - Option.Grid.Right) continue;
|
||
|
||
using (Pen pn = new Pen(line.Color, line.Size))
|
||
{
|
||
g.DrawLine(pn, pos, DrawOrigin.Y - 1, pos, Option.Grid.Top + 1);
|
||
}
|
||
|
||
SizeF sf = g.MeasureString(line.Name, SubFont);
|
||
float x = pos - sf.Width;
|
||
if (x < Option.Grid.Left) x = pos + 2;
|
||
float y = Option.Grid.Top + 4 + sf.Height * idx;
|
||
if (y > Height - Option.Grid.Bottom)
|
||
{
|
||
idx = 0;
|
||
y = Option.Grid.Top + 4 + sf.Height * idx;
|
||
}
|
||
|
||
idx++;
|
||
g.DrawString(line.Name, SubFont, line.Color, x, y);
|
||
}
|
||
}
|
||
|
||
private readonly List<UILineSelectPoint> selectPoints = new List<UILineSelectPoint>();
|
||
private readonly List<UILineSelectPoint> selectPointsTemp = new List<UILineSelectPoint>();
|
||
|
||
protected override void OnMouseMove(MouseEventArgs e)
|
||
{
|
||
base.OnMouseMove(e);
|
||
if (!NeedDraw) return;
|
||
|
||
if (!IsMouseDown)
|
||
{
|
||
selectPointsTemp.Clear();
|
||
foreach (var series in Option.Series.Values)
|
||
{
|
||
if (series.DataCount == 0) continue;
|
||
if (series.GetNearestPoint(e.Location, 4, out double x, out double y, out int index))
|
||
{
|
||
UILineSelectPoint point = new UILineSelectPoint();
|
||
point.SeriesIndex = series.Index;
|
||
point.Name = series.Name;
|
||
point.Index = index;
|
||
point.X = x;
|
||
point.Y = y;
|
||
point.Location = new Point((int)series.Points[index].X, (int)series.Points[index].Y);
|
||
selectPointsTemp.Add(point);
|
||
}
|
||
}
|
||
|
||
bool isNew = false;
|
||
if (selectPointsTemp.Count != selectPoints.Count)
|
||
{
|
||
isNew = true;
|
||
}
|
||
else
|
||
{
|
||
Dictionary<string, UILineSelectPoint> points = selectPoints.ToDictionary(p => p.Name);
|
||
foreach (var point in selectPointsTemp)
|
||
{
|
||
if (!points.ContainsKey(point.Name))
|
||
{
|
||
isNew = true;
|
||
break;
|
||
}
|
||
|
||
if (points[point.Name].Index != point.Index)
|
||
{
|
||
isNew = true;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (isNew)
|
||
{
|
||
selectPoints.Clear();
|
||
StringBuilder sb = new StringBuilder();
|
||
int idx = 0;
|
||
Dictionary<int, UILineSelectPoint> dictionary = selectPointsTemp.ToDictionary(p => p.SeriesIndex);
|
||
List<UILineSelectPoint> points = dictionary.SortedValues();
|
||
foreach (var point in points)
|
||
{
|
||
selectPoints.Add(point);
|
||
|
||
if (idx > 0) sb.Append('\n');
|
||
|
||
sb.Append(point.Name);
|
||
sb.Append('\n');
|
||
sb.Append(Option.XAxis.Name + ": ");
|
||
if (Option.XAxisType == UIAxisType.DateTime)
|
||
sb.Append(new DateTimeInt64(point.X).ToString(Option.XAxis.AxisLabel.DateTimeFormat));
|
||
else
|
||
sb.Append(point.X.ToString("F" + Option.XAxis.AxisLabel.DecimalCount));
|
||
sb.Append('\n');
|
||
sb.Append(
|
||
Option.YAxis.Name + ": " + point.Y.ToString("F" + Option.YAxis.AxisLabel.DecimalCount));
|
||
idx++;
|
||
}
|
||
|
||
if (Option.ToolTip.Visible)
|
||
{
|
||
if (sb.ToString().IsNullOrEmpty())
|
||
{
|
||
tip.Visible = false;
|
||
}
|
||
else
|
||
{
|
||
using (Graphics g = this.CreateGraphics())
|
||
{
|
||
SizeF sf = g.MeasureString(sb.ToString(), SubFont);
|
||
tip.Size = new Size((int)sf.Width + 4, (int)sf.Height + 4);
|
||
}
|
||
|
||
int x = e.Location.X + 15;
|
||
int y = e.Location.Y + 20;
|
||
if (e.Location.X + 15 + tip.Width > Width - Option.Grid.Right)
|
||
x = e.Location.X - tip.Width - 2;
|
||
if (e.Location.Y + 20 + tip.Height > Height - Option.Grid.Bottom)
|
||
y = e.Location.Y - tip.Height - 2;
|
||
|
||
tip.Left = x;
|
||
tip.Top = y;
|
||
|
||
tip.Text = sb.ToString();
|
||
if (!tip.Visible) tip.Visible = true;
|
||
}
|
||
}
|
||
|
||
PointValue?.Invoke(this, selectPoints.ToArray());
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (e.Button == MouseButtons.Left && e.X > Option.Grid.Left && e.X < Width - Option.Grid.Right &&
|
||
e.Y > Option.Grid.Top && e.Y < Height - Option.Grid.Bottom)
|
||
{
|
||
StopPoint = e.Location;
|
||
Invalidate();
|
||
}
|
||
}
|
||
}
|
||
|
||
public delegate void OnPointValue(object sender, UILineSelectPoint[] points);
|
||
|
||
public event OnPointValue PointValue;
|
||
|
||
private bool IsMouseDown;
|
||
|
||
private Point StartPoint, StopPoint;
|
||
|
||
protected override void OnMouseDown(MouseEventArgs e)
|
||
{
|
||
base.OnMouseDown(e);
|
||
|
||
if (e.Button == MouseButtons.Left && e.X > Option.Grid.Left && e.X < Width - Option.Grid.Right &&
|
||
e.Y > Option.Grid.Top && e.Y < Height - Option.Grid.Bottom)
|
||
{
|
||
IsMouseDown = true;
|
||
StartPoint = StopPoint = e.Location;
|
||
}
|
||
|
||
if (e.Button == MouseButtons.Right && ContextMenuStrip == null)
|
||
{
|
||
ZoomBack();
|
||
}
|
||
}
|
||
|
||
protected override void OnMouseUp(MouseEventArgs e)
|
||
{
|
||
base.OnMouseUp(e);
|
||
if (IsMouseDown)
|
||
{
|
||
IsMouseDown = false;
|
||
Invalidate();
|
||
Zoom();
|
||
}
|
||
}
|
||
|
||
public bool IsZoom { get; private set; }
|
||
private readonly List<ZoomArea> ZoomAreas = new List<ZoomArea>();
|
||
private ZoomArea BaseArea;
|
||
|
||
private void CreateBaseArea()
|
||
{
|
||
IsZoom = true;
|
||
|
||
if (BaseArea == null)
|
||
{
|
||
BaseArea = new ZoomArea();
|
||
BaseArea.XMin = XScale.Min;
|
||
BaseArea.XMax = XScale.Max;
|
||
BaseArea.YMin = YScale.Min;
|
||
BaseArea.YMax = YScale.Max;
|
||
BaseArea.XMinAuto = Option.XAxis.MinAuto;
|
||
BaseArea.XMaxAuto = Option.XAxis.MaxAuto;
|
||
BaseArea.YMinAuto = Option.YAxis.MinAuto;
|
||
BaseArea.YMaxAuto = Option.YAxis.MaxAuto;
|
||
}
|
||
}
|
||
|
||
private void Zoom()
|
||
{
|
||
if (Math.Abs(StartPoint.X - StopPoint.X) < 6 && Math.Abs(StartPoint.Y - StopPoint.Y) < 6) return;
|
||
|
||
CreateBaseArea();
|
||
|
||
var zoomArea = new ZoomArea();
|
||
zoomArea.XMin = XScale.CalcXPos(Math.Min(StartPoint.X, StopPoint.X), DrawOrigin.X, DrawSize.Width);
|
||
zoomArea.XMax = XScale.CalcXPos(Math.Max(StartPoint.X, StopPoint.X), DrawOrigin.X, DrawSize.Width);
|
||
zoomArea.YMax = YScale.CalcYPos(Math.Min(StartPoint.Y, StopPoint.Y), DrawOrigin.Y, DrawSize.Height);
|
||
zoomArea.YMin = YScale.CalcYPos(Math.Max(StartPoint.Y, StopPoint.Y), DrawOrigin.Y, DrawSize.Height);
|
||
AddZoomArea(zoomArea);
|
||
}
|
||
|
||
public const double MinInterval = 0.000005;
|
||
public const double MaxInterval = int.MaxValue;
|
||
|
||
private void AddZoomArea(ZoomArea zoomArea)
|
||
{
|
||
if (zoomArea.XMax - zoomArea.XMin <= MinInterval) return;
|
||
if (zoomArea.YMax - zoomArea.YMin <= MinInterval) return;
|
||
if (zoomArea.XMax - zoomArea.XMin >= MaxInterval) return;
|
||
if (zoomArea.YMax - zoomArea.YMin >= MaxInterval) return;
|
||
|
||
ZoomAreas.Add(zoomArea);
|
||
Zoom(zoomArea);
|
||
}
|
||
|
||
private void Zoom(ZoomArea zoomArea)
|
||
{
|
||
Option.XAxis.Min = zoomArea.XMin;
|
||
Option.XAxis.Max = zoomArea.XMax;
|
||
Option.YAxis.Max = zoomArea.YMax;
|
||
Option.YAxis.Min = zoomArea.YMin;
|
||
Option.XAxis.MinAuto = zoomArea.XMinAuto;
|
||
Option.XAxis.MaxAuto = zoomArea.XMaxAuto;
|
||
Option.YAxis.MinAuto = zoomArea.YMinAuto;
|
||
Option.YAxis.MaxAuto = zoomArea.YMaxAuto;
|
||
|
||
CalcData();
|
||
Invalidate();
|
||
}
|
||
|
||
public void ZoomNormal()
|
||
{
|
||
if (!IsZoom) return;
|
||
|
||
IsZoom = false;
|
||
Option.XAxis.Min = BaseArea.XMin;
|
||
Option.XAxis.Max = BaseArea.XMax;
|
||
Option.YAxis.Min = BaseArea.YMin;
|
||
Option.YAxis.Max = BaseArea.YMax;
|
||
Option.XAxis.MinAuto = BaseArea.XMinAuto;
|
||
Option.XAxis.MaxAuto = BaseArea.XMaxAuto;
|
||
Option.YAxis.MinAuto = BaseArea.YMinAuto;
|
||
Option.YAxis.MaxAuto = BaseArea.YMaxAuto;
|
||
BaseArea = null;
|
||
CalcData();
|
||
Invalidate();
|
||
}
|
||
|
||
public void ZoomBack()
|
||
{
|
||
if (!IsZoom) return;
|
||
|
||
if (ZoomAreas.Count > 1)
|
||
{
|
||
ZoomAreas.RemoveAt(ZoomAreas.Count - 1);
|
||
Zoom(ZoomAreas[ZoomAreas.Count - 1]);
|
||
}
|
||
else
|
||
{
|
||
ZoomAreas.Clear();
|
||
ZoomNormal();
|
||
}
|
||
}
|
||
|
||
protected override void OnMouseLeave(EventArgs e)
|
||
{
|
||
base.OnMouseLeave(e);
|
||
IsMouseDown = false;
|
||
}
|
||
|
||
protected virtual void DrawOther(Graphics g)
|
||
{
|
||
if (IsMouseDown)
|
||
{
|
||
Color color = Color.FromArgb(50, UIColor.Blue);
|
||
g.FillRectangle(color,
|
||
Math.Min(StartPoint.X, StopPoint.X),
|
||
Math.Min(StartPoint.Y, StopPoint.Y),
|
||
Math.Abs(StopPoint.X - StartPoint.X),
|
||
Math.Abs(StopPoint.Y - StartPoint.Y));
|
||
g.DrawRectangle(UIColor.Blue,
|
||
Math.Min(StartPoint.X, StopPoint.X),
|
||
Math.Min(StartPoint.Y, StopPoint.Y),
|
||
Math.Abs(StopPoint.X - StartPoint.X),
|
||
Math.Abs(StopPoint.Y - StartPoint.Y));
|
||
}
|
||
}
|
||
|
||
protected override void OnMouseDoubleClick(MouseEventArgs e)
|
||
{
|
||
base.OnMouseDoubleClick(e);
|
||
if (e.Button == MouseButtons.Left) ZoomNormal();
|
||
}
|
||
}
|
||
}
|