public override void OnRender(DrawingContext dc)
{
if ((this._lineCache != null) && (this._lineCache.Count != 0))
{
int num3;
int num4;
int count = this._lineCache.Count;
int num2 = 0;
base.GetRenderSize(out num3, out num4);
for (int i = this._currentLine; i < count; i++)
{
int num6;
TextLine line = (TextLine)this._lineCache[i];
if ((num2 + line.Height) > num4)
{
break;
}
TextRun[] runs = line.Runs;
switch (this._alignment)
{
case GHIElectronics.TinyCLR.UI.Media.TextAlignment.Left:
num6 = 0;
break;
case GHIElectronics.TinyCLR.UI.Media.TextAlignment.Center:
num6 = (num3 - line.Width) >> 1;
break;
case GHIElectronics.TinyCLR.UI.Media.TextAlignment.Right:
num6 = num3 - line.Width;
break;
default:
throw new NotSupportedException();
}
for (int j = 0; j < runs.Length; j++)
{
int num8;
int num9;
TextRun run = runs[j];
run.GetSize(out num8, out num9);
int y = (num2 + line.Baseline) - run.Font.Ascent;
dc.DrawText(run.Text, run.Font, run.ForeColor, num6, y);
num6 += num8;
}
num2 += line.Height;
}
}
}
internal ArrayList SplitLines(int availableWidth)
{
int num = 0;
ArrayList list = new ArrayList();
for (int i = 0; i < this.TextRuns.Count; i++)
{
list.Add(this.TextRuns[i]);
}
ArrayList list2 = new ArrayList();
ArrayList runs = new ArrayList();
while (list.Count > 0)
{
bool flag = false;
TextRun run = (TextRun)list[0];
list.RemoveAt(0);
if (run.IsEndOfLine)
{
flag = true;
}
else
{
int num3;
int num4;
run.GetSize(out num3, out num4);
num += num3;
runs.Add(run);
if (num > availableWidth)
{
bool emergencyBreak = runs.Count == 1;
if (run.Text.Length > 1)
{
TextRun run2;
TextRun run3;
runs.Remove(run);
if (run.Break(num3 - (num - availableWidth), out run2, out run3, emergencyBreak))
{
if (run2 != null)
{
runs.Add(run2);
}
if (run3 != null)
{
list.Insert(0, run3);
}
}
else if (!emergencyBreak)
{
list.Insert(0, run);
}
}
else if (!emergencyBreak)
{
runs.Remove(run);
list.Insert(0, run);
}
flag = true;
}
if ((num >= availableWidth) || (list.Count == 0))
{
flag = true;
}
}
if (flag)
{
int height = 0;
int baseline = 0;
int count = runs.Count;
if (count > 0)
{
for (int j = 0; j < count; j++)
{
Font font = ((TextRun)runs[j]).Font;
int num9 = font.Height + font.ExternalLeading;
if (num9 > height)
{
height = num9;
baseline = font.Ascent;
}
}
list2.Add(new TextLine(runs, height, baseline));
}
else
{
height = (list2.Count > 0) ? ((TextLine)list2[list2.Count - 1]).Height : 10;
list2.Add(new TextLine(height));
}
runs.Clear();
num = 0;
}
}
return(list2);
}
