void RenderPie(bool left, System.Drawing.Graphics g)
{
Pie pie = left ? _leftPie : _rightPie;
Label firstLabel = null;
Label lastLabel = null;
float startAngle = 0F;
for (int i = 0; i < pie.Blocks.Count; i++)
{
PieBlock block = pie.Blocks[i];
Label label = _labels.Find(p => p.Index == block.Index);
if (label == null)
{
continue;
}
if (i == 0)
{
firstLabel = label;
}
lastLabel = label;
g.FillPie(label.Brush, pie.X, pie.Y, pie.Width, pie.Height, startAngle, block.Percent);
startAngle += block.Percent;
}
if (firstLabel == null)
{
firstLabel = new Label()
{
Index = 0, Color = System.Drawing.Color.Gray, Name = ""
};
g.FillPie(firstLabel.Brush, pie.X, pie.Y, pie.Width, pie.Height, 0F, 1F);
}
g.DrawPie(new System.Drawing.Pen(firstLabel.Brush), pie.X, pie.Y, pie.Width, pie.Height, 0F, 360F);
//bottom labels
float bottomY = pie.Y + pie.Height + 15F;
if (left)
{
float bottomX = pie.X + 4F;
for (int i = 0; i < pie.Labels.Count; i++)
{
Label label = pie.Labels[i];
g.FillRectangle(label.Brush, bottomX, bottomY, Font.Height, Font.Height);
bottomX += Font.Height + 3F;
string text = label.Name;
System.Drawing.SizeF textSize = g.MeasureString(text, _font);
g.DrawString(text, _font, label.Brush, bottomX, bottomY + (_font.Height - textSize.Height) / 2F);
bottomX += textSize.Width + 10F;
if (!string.IsNullOrEmpty(label.Value))
{
text = label.Value;
bottomX -= 8F;
textSize = g.MeasureString(text, _font);
g.DrawString(text, _font, label.Brush, bottomX, bottomY + (_font.Height - textSize.Height) / 2F);
bottomX += textSize.Width + 10F;
}
}
}
else
{
float bottomX = pie.X + pie.Width - 4F;
for (int i = pie.Labels.Count - 1; i >= 0; i--)
{
Label label = pie.Labels[i];
string text = null;
System.Drawing.SizeF textSize;
if (!string.IsNullOrEmpty(label.Value))
{
text = label.Value;
textSize = g.MeasureString(text, _font);
bottomX -= textSize.Width;
g.DrawString(text, _font, label.Brush, bottomX, bottomY + (_font.Height - textSize.Height) / 2F);
bottomX -= 3F;
}
text = label.Name;
textSize = g.MeasureString(text, _font);
bottomX -= textSize.Width;
g.DrawString(text, _font, label.Brush, bottomX, bottomY + (_font.Height - textSize.Height) / 2F);
bottomX -= 3F;
bottomX -= Font.Height;
g.FillRectangle(label.Brush, bottomX, bottomY, Font.Height, Font.Height);
bottomX -= 10F;
}
}
}
