zhaoyushun1999/SunnyUI
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

* UILineChart：支持拖拽选取放大

Browse Source
This commit is contained in:
Sunny 2021-03-05 15:39:38 +08:00
parent bf7c0759c6
commit add8a9dfc1
6 changed files with 98 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

BIN
Bin/net40/SunnyUI.Demo.exe
View File

Binary file not shown.

BIN
Bin/net40/SunnyUI.dll
View File

Binary file not shown.

BIN
Bin/net5.0-windows/SunnyUI.dll
View File

Binary file not shown.

BIN
Bin/net5.0-windows/ref/SunnyUI.dll
View File

Binary file not shown.

BIN
Bin/netcoreapp3.1/SunnyUI.dll
View File

Binary file not shown.

121
SunnyUI/Charts/UILineChart.cs
View File

@ -153,13 +153,33 @@ namespace Sunny.UI
if (Option == null) return;
if (!NeedDraw) return;
if (bmp == null || bmp.Width != Width || bmp.Height != Height)
{
bmp?.Dispose();
bmp = new Bitmap(Width, Height);
}
if (bmpGreater == null || bmpGreater.Width != Width || bmpGreater.Height != Height)
{
bmpGreater?.Dispose();
bmpGreater = new Bitmap(Width, Height);
}
if (bmpLess == null || bmpLess.Width != Width || bmpLess.Height != Height)
{
bmpLess?.Dispose();
bmpLess = new Bitmap(Width, Height);
}
// if (BarOption.ToolTip != null && BarOption.ToolTip.AxisPointer.Type == UIAxisPointerType.Shadow) DrawToolTip(g);
DrawAxis(g);
DrawTitle(g, Option.Title);
DrawAxisScales(g);
DrawSeries(g);
// if (BarOption.ToolTip != null && BarOption.ToolTip.AxisPointer.Type == UIAxisPointerType.Line) DrawToolTip(g);
DrawLegend(g, Option.Legend);
DrawAxis(g);
DrawAxisScales(g);
DrawOther(g);
}
@ -167,7 +187,11 @@ namespace Sunny.UI
{
g.DrawRectangle(ChartStyle.ForeColor, Option.Grid.Left, Option.Grid.Top, DrawSize.Width, DrawSize.Height);
float zeroPos = YScale.CalcYPixel(0, DrawOrigin.Y, DrawSize.Height);
g.DrawLine(ChartStyle.ForeColor, DrawOrigin.X, zeroPos, DrawOrigin.X + DrawSize.Width, zeroPos);
if (zeroPos > Option.Grid.Top && zeroPos < Height - Option.Grid.Bottom)
{
g.DrawLine(ChartStyle.ForeColor, DrawOrigin.X, zeroPos, DrawOrigin.X + DrawSize.Width, zeroPos);
}
if (XScale == null || YScale == null) return;
//X Tick
@ -177,6 +201,8 @@ namespace Sunny.UI
for (int i = 0; i < labels.Length; i++)
{
float x = labels[i];
if (x <= Option.Grid.Left || x >= Width - Option.Grid.Right) continue;
if (Option.XAxis.AxisLabel.Show)
{
string label;
@ -224,6 +250,8 @@ namespace Sunny.UI
for (int i = 0; i < labels.Length; i++)
{
float y = labels[i];
if (y <= Option.Grid.Top || y >= Height - Option.Grid.Bottom) continue;
if (Option.YAxis.AxisLabel.Show)
{
string label = YLabels[i].ToString(YScale.Format);
@ -243,7 +271,6 @@ namespace Sunny.UI
}
}
SizeF sfName = g.MeasureString(Option.YAxis.Name, SubFont);
int xx = (int)(DrawOrigin.X - Option.YAxis.AxisTick.Length - widthMax - sfName.Height);
int yy = (int)(Option.Grid.Top + (DrawSize.Height - sfName.Width) / 2);
@ -276,29 +303,49 @@ namespace Sunny.UI
}
}
Bitmap bmp, bmpGreater, bmpLess;
private void DrawSeries(Graphics g)
{
if (YScale == null) return;
using (Graphics graphics = bmp.Graphics())
{
graphics.FillRectangle(ChartStyle.BackColor, 0, 0, Width, Height);
}
using (Graphics graphics = bmpGreater.Graphics())
{
graphics.FillRectangle(ChartStyle.BackColor, 0, 0, Width, Height);
}
using (Graphics graphics = bmpLess.Graphics())
{
graphics.FillRectangle(ChartStyle.BackColor, 0, 0, Width, Height);
}
int idx = 0;
float wTop = Option.Grid.Top;
float wBottom = Height - Option.Grid.Bottom;
float wLeft = Option.Grid.Left;
float wRight = Width - Option.Grid.Right;
if (Option.GreaterWarningArea == null && Option.LessWarningArea == null)
{
foreach (var series in Option.Series.Values)
{
Color color = series.Color;
if (!series.CustomColor) color = ChartStyle.GetColor(idx);
DrawSeries(g, color, series);
using (Graphics graphics = bmp.Graphics())
{
DrawSeries(graphics, color, series);
}
idx++;
}
}
else
{
Bitmap bmp = new Bitmap(Width, Height);
Bitmap bmpGreater = new Bitmap(Width, Height);
Bitmap bmpLess = new Bitmap(Width, Height);
float wTop = 0;
float wBottom = Height;
foreach (var series in Option.Series.Values)
{
Color color = series.Color;
@ -331,25 +378,39 @@ namespace Sunny.UI
if (Option.GreaterWarningArea != null)
{
wTop = YScale.CalcYPixel(Option.GreaterWarningArea.Value, DrawOrigin.Y, DrawSize.Height);
g.DrawImage(bmpGreater, new Rectangle(0, 0, Width, (int)wTop),
new Rectangle(0, 0, Width, (int)wTop), GraphicsUnit.Pixel);
if (wTop < Option.Grid.Top)
{
wTop = Option.Grid.Top;
}
else
{
if (wTop > Height - Option.Grid.Bottom)
wTop = Height - Option.Grid.Bottom;
g.DrawImage(bmpGreater, new Rectangle((int)wLeft, Option.Grid.Top, (int)(wRight - wLeft), (int)(wTop - Option.Grid.Top)),
new Rectangle((int)wLeft, Option.Grid.Top, (int)(wRight - wLeft), (int)(wTop - Option.Grid.Top)), GraphicsUnit.Pixel);
}
}
if (Option.LessWarningArea != null)
{
wBottom = YScale.CalcYPixel(Option.LessWarningArea.Value, DrawOrigin.Y, DrawSize.Height);
g.DrawImage(bmpLess, new Rectangle(0, (int)wBottom, Width, Height - (int)wBottom),
new Rectangle(0, (int)wBottom, Width, Height - (int)wBottom), GraphicsUnit.Pixel);
if (wBottom > Height - Option.Grid.Bottom)
{
wBottom = Height - Option.Grid.Bottom;
}
else
{
if (wBottom < Option.Grid.Top)
wBottom = Option.Grid.Top;
g.DrawImage(bmpLess, new Rectangle((int)wLeft, (int)wBottom, (int)(wRight - wLeft), (int)(Height - Option.Grid.Bottom - wBottom)),
new Rectangle((int)wLeft, (int)wBottom, (int)(wRight - wLeft), (int)(Height - Option.Grid.Bottom - wBottom)), GraphicsUnit.Pixel);
}
}
g.DrawImage(bmp, new Rectangle(0, (int)wTop, Width, (int)wBottom - (int)wTop),
new Rectangle(0, (int)wTop, Width, (int)wBottom - (int)wTop), GraphicsUnit.Pixel);
bmpGreater.Dispose();
bmpLess.Dispose();
bmp.Dispose();
}
g.DrawImage(bmp, new Rectangle((int)wLeft, (int)wTop, (int)(wRight - wLeft), (int)(wBottom - wTop)),
new Rectangle((int)wLeft, (int)wTop, (int)(wRight - wLeft), (int)(wBottom - wTop)), GraphicsUnit.Pixel);
idx = 0;
foreach (var series in Option.Series.Values)
{
@ -363,6 +424,9 @@ namespace Sunny.UI
{
foreach (var p in series.Points)
{
if (p.X <= Option.Grid.Left || p.X >= Width - Option.Grid.Right) continue;
if (p.Y <= Option.Grid.Top || p.Y >= Height - Option.Grid.Bottom) continue;
switch (series.Symbol)
{
case UILinePointSymbol.Square:
@ -431,6 +495,8 @@ namespace Sunny.UI
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, pos, Width - Option.Grid.Right, pos);
@ -450,6 +516,8 @@ namespace Sunny.UI
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, pos, Option.Grid.Top);
@ -605,7 +673,7 @@ namespace Sunny.UI
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;
IsMouseDown = true;
StartPoint = e.Location;
}
}
@ -627,6 +695,8 @@ namespace Sunny.UI
private void Zoom()
{
if (Math.Abs(StartPoint.X - StopPoint.X) < 10 || Math.Abs(StartPoint.Y - StopPoint.Y) < 10) return;
IsZoom = true;
XMin = Option.XAxis.Min;
@ -686,6 +756,11 @@ namespace Sunny.UI
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));
}
}