protected override void CreateEmptyOption()
{
if (emptyOption != null)
{
return;
}
UIBarOption option = new UIBarOption();
option.Title = new UITitle();
option.Title.Text = "SunnyUI";
option.Title.SubText = "BarChartEx";
//设置Legend
option.Legend = new UILegend();
option.Legend.Orient = UIOrient.Horizontal;
option.Legend.Top = UITopAlignment.Top;
option.Legend.Left = UILeftAlignment.Left;
option.Legend.AddData("Bar1");
option.Legend.AddData("Bar2");
option.Legend.AddData("Bar3");
var series = new UIBarSeries();
series.Name = "Bar1";
series.AddData(1);
option.Series.Add(series);
series = new UIBarSeries();
series.Name = "Bar2";
series.AddData(2);
series.AddData(3);
option.Series.Add(series);
series = new UIBarSeries();
series.Name = "Bar2";
series.AddData(4);
series.AddData(5);
series.AddData(6);
option.Series.Add(series);
option.XAxis.Data.Add("Mon");
option.XAxis.Data.Add("Tue");
option.XAxis.Data.Add("Wed");
option.XAxis.Data.Add("Thu");
option.XAxis.Data.Add("Fri");
option.ToolTip = new UIBarToolTip();
option.ToolTip.AxisPointer.Type = UIAxisPointerType.Shadow;
emptyOption = option;
}
protected override void CalcData(UIOption option)
{
Bars.Clear();
NeedDraw = false;
UIBarOption o = (UIBarOption)option;
if (o == null || o.Series == null || o.SeriesCount == 0)
{
return;
}
DrawOrigin = new Point(BarOption.Grid.Left, Height - BarOption.Grid.Bottom);
DrawSize = new Size(Width - BarOption.Grid.Left - BarOption.Grid.Right,
Height - BarOption.Grid.Top - BarOption.Grid.Bottom);
if (DrawSize.Width <= 0 || DrawSize.Height <= 0)
{
return;
}
if (o.XAxis.Data.Count == 0)
{
return;
}
NeedDraw = true;
DrawBarWidth = DrawSize.Width * 1.0f / o.XAxis.Data.Count;
double min = double.MaxValue;
double max = double.MinValue;
foreach (var series in o.Series)
{
min = Math.Min(min, series.Data.Min());
max = Math.Max(max, series.Data.Max());
}
if (min > 0 && max > 0 && !o.YAxis.Scale)
{
min = 0;
}
if (min < 0 && max < 0 && !o.YAxis.Scale)
{
max = 0;
}
if (!o.YAxis.MaxAuto)
{
max = o.YAxis.Max;
}
if (!o.YAxis.MinAuto)
{
min = o.YAxis.Min;
}
if ((max - min).IsZero())
{
max = 100;
min = 0;
}
UIChartHelper.CalcDegreeScale(min, max, o.YAxis.SplitNumber,
out int start, out int end, out double interval);
YAxisStart = start;
YAxisEnd = end;
YAxisInterval = interval;
float x1 = DrawBarWidth / ((o.SeriesCount * 2) + o.SeriesCount + 1);
float x2 = x1 * 2;
for (int i = 0; i < o.SeriesCount; i++)
{
float barX = DrawOrigin.X;
var series = o.Series[i];
Bars.TryAdd(i, new List <BarInfo>());
for (int j = 0; j < series.Data.Count; j++)
{
Color color = ChartStyle.GetColor(i);
if (series.Colors.Count > 0 && j >= 0 && j < series.Colors.Count)
{
color = series.Colors[j];
}
if (YAxisStart >= 0)
{
float h = Math.Abs((float)(DrawSize.Height * (series.Data[j] - start * interval) / ((end - start) * interval)));
Bars[i].Add(new BarInfo()
{
Rect = new RectangleF(
barX + x1 * (i + 1) + x2 * i,
DrawOrigin.Y - h,
x2, h),
Color = color
});
}
else if (YAxisEnd <= 0)
{
float h = Math.Abs((float)(DrawSize.Height * (end * interval - series.Data[j]) / ((end - start) * interval)));
Bars[i].Add(new BarInfo()
{
Rect = new RectangleF(
barX + x1 * (i + 1) + x2 * i,
BarOption.Grid.Top + 1,
x2, h - 1),
Color = color
});
}
else
{
float lowH = 0;
float highH = 0;
float DrawBarHeight = DrawSize.Height * 1.0f / (YAxisEnd - YAxisStart);
float lowV = 0;
float highV = 0;
for (int k = YAxisStart; k <= YAxisEnd; k++)
{
if (k < 0)
{
lowH += DrawBarHeight;
}
if (k > 0)
{
highH += DrawBarHeight;
}
if (k < 0)
{
lowV += (float)YAxisInterval;
}
if (k > 0)
{
highV += (float)YAxisInterval;
}
}
lowH.ConsoleWriteLine();
highH.ConsoleWriteLine();
if (series.Data[j] >= 0)
{
float h = Math.Abs((float)(highH * series.Data[j] / highV));
Bars[i].Add(new BarInfo()
{
Rect = new RectangleF(
barX + x1 * (i + 1) + x2 * i,
DrawOrigin.Y - lowH - h,
x2, h),
Color = color
});
}
else
{
float h = Math.Abs((float)(lowH * series.Data[j] / lowV));
Bars[i].Add(new BarInfo()
{
Rect = new RectangleF(
barX + x1 * (i + 1) + x2 * i,
DrawOrigin.Y - lowH + 1,
x2, h - 1),
Color = color
});
}
}
barX += DrawBarWidth;
}
}
if (BarOption.ToolTip != null)
{
for (int i = 0; i < BarOption.XAxis.Data.Count; i++)
{
string str = BarOption.XAxis.Data[i];
foreach (var series in BarOption.Series)
{
str += '\n';
str += series.Name + " : " + series.Data[i].ToString(BarOption.ToolTip.ValueFormat);
}
Bars[0][i].Tips = str;
}
}
}