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* UILineChart: 增加了X轴和Y轴鼠标选择区域并返回选中范围

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This commit is contained in:
Sunny 2023-10-05 13:14:41 +08:00
parent 4cf7239d07
commit 930302a375
2 changed files with 166 additions and 26 deletions
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183
SunnyUI/Charts/UILineChart.cs
View File

@ -49,6 +49,7 @@
* 2023-07-02: V3.3.9 增加了数据沿Y轴变化时鼠标移动到数据点时显示数据点标签
* 2023-07-14: V3.4.0 增加了坐标轴绘制时显示箭头，并在箭头处显示数量单位的功能
* 2023-10-04: V3.5.0 增加了Y轴数据由上向下绘制
* 2023-10-05: V3.5.0 增加了X轴和Y轴鼠标选择区域并返回选中范围
******************************************************************************/
using System;
@ -999,12 +1000,39 @@ namespace Sunny.UI
}
else
{
if (MouseZoom && 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)
switch (MouseDownType)
{
StopPoint = e.Location;
Invalidate();
case UILineChartMouseDownType.Zoom:
if (MouseZoom && 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();
}
break;
case UILineChartMouseDownType.XArea:
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();
}
break;
case UILineChartMouseDownType.YArea:
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();
}
break;
default:
break;
}
}
}
@ -1020,6 +1048,8 @@ namespace Sunny.UI
private Point StartPoint, StopPoint;
public UILineChartMouseDownType MouseDownType { get; set; } = UILineChartMouseDownType.Zoom;
/// <summary>
/// 重载鼠标按下事件
/// </summary>
@ -1028,16 +1058,44 @@ namespace Sunny.UI
{
base.OnMouseDown(e);
if (MouseZoom && 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)
switch (MouseDownType)
{
IsMouseDown = true;
StartPoint = StopPoint = e.Location;
}
case UILineChartMouseDownType.Zoom:
if (MouseZoom && 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 (MouseZoom && e.Button == MouseButtons.Right && ContextMenuStrip == null)
{
ZoomBack();
if (MouseZoom && e.Button == MouseButtons.Right && ContextMenuStrip == null)
{
ZoomBack();
}
break;
case UILineChartMouseDownType.XArea:
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;
}
break;
case UILineChartMouseDownType.YArea:
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;
}
break;
default:
break;
}
}
@ -1049,11 +1107,49 @@ namespace Sunny.UI
{
base.OnMouseUp(e);
if (MouseZoom && IsMouseDown)
switch (MouseDownType)
{
IsMouseDown = false;
Invalidate();
Zoom();
case UILineChartMouseDownType.Zoom:
if (MouseZoom && IsMouseDown)
{
IsMouseDown = false;
Invalidate();
Zoom();
}
break;
case UILineChartMouseDownType.XArea:
if (IsMouseDown)
{
IsMouseDown = false;
Invalidate();
double XMin = XScale.CalcXPos(Math.Min(StartPoint.X, StopPoint.X), DrawOrigin.X, DrawSize.Width);
double XMax = XScale.CalcXPos(Math.Max(StartPoint.X, StopPoint.X), DrawOrigin.X, DrawSize.Width);
MouseAreaSelected?.Invoke(this, MouseDownType, XMin, XMax, "X");
}
break;
case UILineChartMouseDownType.YArea:
if (IsMouseDown)
{
IsMouseDown = false;
Invalidate();
double y1 = YScale.CalcYPos(Math.Min(StartPoint.Y, StopPoint.Y), DrawOrigin.Y, DrawSize.Height, Option.YDataOrder);
double y2 = YScale.CalcYPos(Math.Max(StartPoint.Y, StopPoint.Y), DrawOrigin.Y, DrawSize.Height, Option.YDataOrder);
MouseAreaSelected?.Invoke(this, MouseDownType, Math.Min(y1, y2), Math.Max(y1, y2), "Y");
if (Option.HaveY2)
{
y1 = Y2Scale.CalcYPos(Math.Min(StartPoint.Y, StopPoint.Y), DrawOrigin.Y, DrawSize.Height, Option.YDataOrder);
y2 = Y2Scale.CalcYPos(Math.Max(StartPoint.Y, StopPoint.Y), DrawOrigin.Y, DrawSize.Height, Option.YDataOrder);
MouseAreaSelected?.Invoke(this, MouseDownType, Math.Min(y1, y2), Math.Max(y1, y2), "Y2");
}
}
break;
default:
break;
}
}
@ -1220,16 +1316,49 @@ namespace Sunny.UI
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));
switch (MouseDownType)
{
case UILineChartMouseDownType.Zoom:
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));
break;
case UILineChartMouseDownType.XArea:
g.FillRectangle(color,
Math.Min(StartPoint.X, StopPoint.X),
Option.Grid.Top,
Math.Abs(StopPoint.X - StartPoint.X),
DrawSize.Height);
g.DrawRectangle(UIColor.Blue,
Math.Min(StartPoint.X, StopPoint.X),
Option.Grid.Top,
Math.Abs(StopPoint.X - StartPoint.X),
DrawSize.Height);
break;
case UILineChartMouseDownType.YArea:
g.FillRectangle(color,
Option.Grid.Left,
Math.Min(StartPoint.Y, StopPoint.Y),
DrawSize.Width,
Math.Abs(StopPoint.Y - StartPoint.Y));
g.DrawRectangle(UIColor.Blue,
Option.Grid.Left,
Math.Min(StartPoint.Y, StopPoint.Y),
DrawSize.Width,
Math.Abs(StopPoint.Y - StartPoint.Y));
break;
default:
break;
}
}
}
@ -1238,5 +1367,7 @@ namespace Sunny.UI
base.OnMouseDoubleClick(e);
if (e.Button == MouseButtons.Left) ZoomNormal();
}
public event OnMouseAreaSelected MouseAreaSelected;
}
}

9
SunnyUI/Charts/UILineChartOption.cs
View File

@ -44,6 +44,15 @@ namespace Sunny.UI
Desc
}
public enum UILineChartMouseDownType
{
Zoom,
XArea,
YArea
}
public delegate void OnMouseAreaSelected(object sender, UILineChartMouseDownType mouseDownType, double minValue, double maxValue, string axis);
public sealed class UILineOption : UIOption, IDisposable
{
public bool ShowZeroLine { get; set; } = true;