public override void DrawTextForSelectedNode(Graphics oGraphics, Node oSelectedNode)
{
Debug.Assert(oGraphics != null);
Debug.Assert(oSelectedNode != null);
this.AssertValid();
IFontMapper fontMapper = null;
Brush brush = null;
TextRenderingHint textRenderingHint = TextRenderingHint.SystemDefault;
try
{
fontMapper = this.CreateFontMapper(oGraphics);
brush = new SolidBrush(this.m_oSelectedFontColor);
Font font;
string s;
if (fontMapper.NodeToFont(oSelectedNode, oSelectedNode.Level, oGraphics, out font, out s))
{
textRenderingHint = base.SetTextRenderingHint(oGraphics, font);
StringFormat format = this.CreateStringFormat();
oGraphics.DrawString(s, font, brush, oSelectedNode.Rectangle, format);
}
}
finally
{
if (fontMapper != null)
{
fontMapper.Dispose();
}
if (brush != null)
{
brush.Dispose();
}
oGraphics.TextRenderingHint = textRenderingHint;
}
}
public override void DrawTextForAllNodes(Graphics oGraphics, Rectangle oTreemapRectangle, Nodes oNodes)
{
Debug.Assert(oGraphics != null);
Debug.Assert(oNodes != null);
this.AssertValid();
IFontMapper fontMapper = null;
TransparentBrushMapper transparentBrushMapper = null;
TextRenderingHint textRenderingHint = oGraphics.TextRenderingHint;
try
{
fontMapper = this.CreateFontMapper(oGraphics);
transparentBrushMapper = this.CreateTransparentBrushMapper();
StringFormat oStringFormat = this.CreateStringFormat();
this.DrawTextForNodes(oNodes, oGraphics, fontMapper, oStringFormat, transparentBrushMapper, 0);
}
finally
{
if (fontMapper != null)
{
fontMapper.Dispose();
}
if (transparentBrushMapper != null)
{
transparentBrushMapper.Dispose();
}
oGraphics.TextRenderingHint = textRenderingHint;
}
}
protected void DrawTextForNodes(Nodes oNodes, Graphics oGraphics, IFontMapper oFontMapper, StringFormat oStringFormat, TransparentBrushMapper oTransparentBrushMapper, int iNodeLevel)
{
Debug.Assert(oNodes != null);
Debug.Assert(oGraphics != null);
Debug.Assert(oFontMapper != null);
Debug.Assert(oStringFormat != null);
Debug.Assert(oTransparentBrushMapper != null);
Debug.Assert(iNodeLevel >= 0);
foreach (Node current in oNodes)
{
RectangleF rectangle = current.Rectangle;
if (!rectangle.IsEmpty)
{
Font font;
string s;
if (base.TextShouldBeDrawnForNode(current, iNodeLevel) && oFontMapper.NodeToFont(current, iNodeLevel, oGraphics, out font, out s))
{
base.SetTextRenderingHint(oGraphics, font);
Brush brush = oTransparentBrushMapper.LevelToTransparentBrush(iNodeLevel);
oGraphics.DrawString(s, font, brush, rectangle, oStringFormat);
}
this.DrawTextForNodes(current.Nodes, oGraphics, oFontMapper, oStringFormat, oTransparentBrushMapper, iNodeLevel + 1);
}
}
}
public override void DrawTextForSelectedNode(Graphics oGraphics, Node oSelectedNode)
{
Debug.Assert(oGraphics != null);
Debug.Assert(oSelectedNode != null);
AssertValid();
IFontMapper fontMapper = null;
Brush brush = null;
TextRenderingHint textRenderingHint = TextRenderingHint.SystemDefault;
try
{
fontMapper = CreateFontMapper(oGraphics);
brush = new SolidBrush(m_oSelectedFontColor);
if (fontMapper.NodeToFont(oSelectedNode, oSelectedNode.Level, oGraphics, out Font oFont, out string sTextToDraw))
{
textRenderingHint = SetTextRenderingHint(oGraphics, oFont);
StringFormat format = CreateStringFormat();
oGraphics.DrawString(sTextToDraw, oFont, brush, oSelectedNode.Rectangle, format);
}
}
finally
{
fontMapper?.Dispose();
brush?.Dispose();
oGraphics.TextRenderingHint = textRenderingHint;
}
}
protected void DrawTextForNodes(Nodes oNodes, Graphics oGraphics, IFontMapper oFontMapper, StringFormat oStringFormat, TransparentBrushMapper oTransparentBrushMapper, int iNodeLevel)
{
Debug.Assert(oNodes != null);
Debug.Assert(oGraphics != null);
Debug.Assert(oFontMapper != null);
Debug.Assert(oStringFormat != null);
Debug.Assert(oTransparentBrushMapper != null);
Debug.Assert(iNodeLevel >= 0);
foreach (Node oNode in oNodes)
{
RectangleF rectangle = oNode.Rectangle;
if (!rectangle.IsEmpty)
{
if (TextShouldBeDrawnForNode(oNode, iNodeLevel) && oFontMapper.NodeToFont(oNode, iNodeLevel, oGraphics, out Font oFont, out string sTextToDraw))
{
SetTextRenderingHint(oGraphics, oFont);
Brush brush = oTransparentBrushMapper.LevelToTransparentBrush(iNodeLevel);
oGraphics.DrawString(sTextToDraw, oFont, brush, rectangle, oStringFormat);
}
DrawTextForNodes(oNode.Nodes, oGraphics, oFontMapper, oStringFormat, oTransparentBrushMapper, iNodeLevel + 1);
}
}
}