private static void doMeasureText(MeasureTextInformation information, MeasureTextResult result)
{
if (string.IsNullOrEmpty(information.Text))
{
result.Size = new Size();
}
else if (information.Font == null)
{
throw new ArgumentNullException();
}
else if (information.MaxWidth == null)
{
throw new ArgumentNullException();
}
else if (information.Control == null && information.Graphics == null)
{
throw new ArgumentNullException();
}
else if (information.Control != null && !information.Control.IsHandleCreated)
{
throw new Exception("No control handle (yet).");
}
else
{
var graphics = information.Graphics ?? information.Control.CreateGraphics();
try
{
var gc = new GraphicsCache(graphics);
if (information.MaxHeight == null)
{
result.Size =
Size.Round(gc.CalcTextSize(information.Text, information.Font,
information.Format ?? new StringFormat(),
information.MaxWidth.Value));
}
else if (information.MaxHeight != null)
{
bool isCropped;
result.Size =
Size.Round(gc.CalcTextSize(information.Text, information.Font,
information.Format ?? new StringFormat(),
information.MaxWidth.Value, information.MaxHeight.Value, out isCropped));
result.IsCropped = isCropped;
}
}
finally
{
if (information.Graphics == null)
{
graphics.Dispose();
}
}
}
}
public static MeasureTextResult MeasureText(MeasureTextInformation information)
{
var result = new MeasureTextResult();
#if MEASURETEXT_USE_TEXTRENDERER
doMeasureText(information, result);
#elif MEASURETEXT_USE_DEVEXPRESS
doMeasureText(information, result);
#endif
return(result);
}
private static void doMeasureText(MeasureTextInformation information, MeasureTextResult result)
{
if (string.IsNullOrEmpty(information.Text))
{
result.Size = new Size();
}
else if (information.Font == null)
{
throw new ArgumentNullException();
}
else
{
// Hier alle Overloads bedienen.
if (information.DC == null && information.ProposedSize == null && information.Flags == null)
{
result.Size = TextRenderer.MeasureText(information.Text, information.Font);
}
else if (information.DC != null && information.ProposedSize == null && information.Flags == null)
{
result.Size = TextRenderer.MeasureText(information.DC, information.Text, information.Font);
}
else if (information.DC == null && information.ProposedSize != null && information.Flags == null)
{
result.Size = TextRenderer.MeasureText(information.Text, information.Font, information.ProposedSize.Value);
}
else if (information.DC != null && information.ProposedSize != null && information.Flags == null)
{
result.Size = TextRenderer.MeasureText(information.DC, information.Text, information.Font, information.ProposedSize.Value);
}
else if (information.DC == null && information.ProposedSize != null && information.Flags != null)
{
result.Size = TextRenderer.MeasureText(information.Text, information.Font, information.ProposedSize.Value, information.Flags.Value);
}
else if (information.DC != null && information.ProposedSize != null && information.Flags != null)
{
result.Size = TextRenderer.MeasureText(information.DC, information.Text, information.Font, information.ProposedSize.Value, information.Flags.Value);
}
else
{
throw new ArgumentOutOfRangeException();
}
}
}
