protected void CalculateAndDrawRectangles(Graphics oGraphics, RectangleF oTreemapRectangle, Nodes oNodes, Node oParentNode)
{
Debug.Assert(oGraphics != null);
Debug.Assert(oNodes != null);
this.AssertValid();
Brush brush = new SolidBrush(this.m_oBackColor);
oGraphics.FillRectangle(brush, oTreemapRectangle);
brush.Dispose();
ILayoutEngine oLayoutEngine = this.CreateLayoutEngine();
this.CalculateRectangles(oNodes, oTreemapRectangle, oParentNode, this.GetTopLevelTopPaddingPx(oGraphics), this.m_iPaddingPx, this.m_iPenWidthPx, oLayoutEngine);
ColorGradientMapper colorGradientMapper = null;
ColorGradientMapper colorGradientMapper2 = null;
if (this.m_eNodeColorAlgorithm == NodeColorAlgorithm.UseColorMetric)
{
colorGradientMapper = new ColorGradientMapper();
Debug.Assert(this.m_fMaxColorMetric > 0f);
colorGradientMapper.Initialize(oGraphics, 0f, this.m_fMaxColorMetric, Color.White, this.m_oMaxColor, this.m_iDiscretePositiveColors, true);
colorGradientMapper2 = new ColorGradientMapper();
Debug.Assert(this.m_fMinColorMetric < 0f);
colorGradientMapper2.Initialize(oGraphics, 0f, -this.m_fMinColorMetric, Color.White, this.m_oMinColor, this.m_iDiscreteNegativeColors, true);
}
PenCache penCache = new PenCache();
penCache.Initialize(this.m_oBorderColor);
this.DrawRectangles(oNodes, 0, oGraphics, colorGradientMapper2, colorGradientMapper, penCache);
if (colorGradientMapper2 != null)
{
colorGradientMapper2.Dispose();
}
if (colorGradientMapper != null)
{
colorGradientMapper.Dispose();
}
penCache.Dispose();
}
protected void DrawRectangles(Nodes oNodes, int iNodeLevel, Graphics oGraphics, ColorGradientMapper oNegativeColorGradientMapper, ColorGradientMapper oPositiveColorGradientMapper, PenCache oPenCache)
{
Debug.Assert(oNodes != null);
Debug.Assert(iNodeLevel >= 0);
Debug.Assert(oGraphics != null);
Debug.Assert(this.m_eNodeColorAlgorithm != NodeColorAlgorithm.UseColorMetric || oNegativeColorGradientMapper != null);
Debug.Assert(this.m_eNodeColorAlgorithm != NodeColorAlgorithm.UseColorMetric || oPositiveColorGradientMapper != null);
Debug.Assert(oPenCache != null);
foreach (Node current in oNodes)
{
if (!current.Rectangle.IsEmpty)
{
Pen pen = oPenCache.GetPen(current.PenWidthPx);
Brush brush = null;
bool flag = false;
switch (this.m_eNodeColorAlgorithm)
{
case NodeColorAlgorithm.UseColorMetric:
{
Debug.Assert(oNegativeColorGradientMapper != null);
Debug.Assert(oPositiveColorGradientMapper != null);
float colorMetric = current.ColorMetric;
if (colorMetric <= 0f)
{
brush = oNegativeColorGradientMapper.ColorMetricToBrush(-colorMetric);
}
else
{
brush = oPositiveColorGradientMapper.ColorMetricToBrush(colorMetric);
}
break;
}
case NodeColorAlgorithm.UseAbsoluteColor:
{
brush = new SolidBrush(current.AbsoluteColor);
flag = true;
break;
}
default:
{
Debug.Assert(false);
break;
}
}
Debug.Assert(brush != null);
Rectangle rectangleToDraw = current.RectangleToDraw;
oGraphics.FillRectangle(brush, rectangleToDraw);
oGraphics.DrawRectangle(pen, rectangleToDraw);
if (flag)
{
brush.Dispose();
brush = null;
}
this.DrawRectangles(current.Nodes, iNodeLevel + 1, oGraphics, oNegativeColorGradientMapper, oPositiveColorGradientMapper, oPenCache);
}
}
}
