private void DrawCapStyleItem(ICapStyle capStyle, DrawItemEventArgs e)
{
ILineStyle lineStyle = styleSet.LineStyles.Normal;
Pen capPen = ToolCache.GetPen(lineStyle, capStyle, capStyle);
Brush capBrush = null;
PointF[] capPoints = null;
int left = previewRect.Left;
int right = previewRect.Right;
if (capPen.StartCap == LineCap.Custom)
{
if (capPen.CustomStartCap.BaseInset > 0)
{
left += (int)Math.Round(capStyle.CapSize - capPen.CustomStartCap.BaseInset);
right -= (int)Math.Round(capStyle.CapSize - capPen.CustomEndCap.BaseInset);
}
}
int y = previewRect.Y + (previewRect.Height / 2);
// Start Cap
if (HasCustomLineCap(capStyle))
{
capBrush = ToolCache.GetBrush(capStyle.ColorStyle, lineStyle);
ToolCache.GetCapPoints(capStyle, styleSet.LineStyles.Normal, ref capPoints);
float angle = Geometry.RadiansToDegrees(Geometry.Angle(left, y, right, y));
matrix.Reset();
matrix.Translate(left, y);
matrix.Rotate(angle + 90);
matrix.TransformPoints(capPoints);
e.Graphics.FillPolygon(capBrush, capPoints, System.Drawing.Drawing2D.FillMode.Alternate);
}
// End Cap
if (HasCustomLineCap(capStyle))
{
capBrush = ToolCache.GetBrush(capStyle.ColorStyle, lineStyle);
ToolCache.GetCapPoints(capStyle, styleSet.LineStyles.Normal, ref capPoints);
float angle = Geometry.RadiansToDegrees(Geometry.Angle(right, y, left, y));
matrix.Reset();
matrix.Translate(right, y);
matrix.Rotate(angle + 90);
matrix.TransformPoints(capPoints);
e.Graphics.FillPolygon(capBrush, capPoints, System.Drawing.Drawing2D.FillMode.Alternate);
}
// Draw
e.Graphics.DrawLine(capPen, left, y, right, y);
e.Graphics.DrawString(capStyle.Title, e.Font, TextBrush, labelLayoutRect, styleItemFormatter);
}