public virtual void MeasureWidths(byte[] s, int len, TextPositions positions, int enc)
{
// A bug in GDI+ means that the string has to be broken up into blocks
// of 32 or less.
int maxMeasurePerCall = 32;
try {
String sAll = System.Text.Encoding.UTF8.GetString(s, 0, len);
int sAllLength = sAll.Length;
for (int start = 0; start < sAllLength; start += maxMeasurePerCall)
{
int sLength = sAllLength - start;
if (sLength > maxMeasurePerCall)
{
sLength = maxMeasurePerCall;
}
CharacterRange [] characterRanges = new CharacterRange[sLength];
for (int i = 0; i < sLength; i++)
{
// Another problem with measuring trailing spaces means
// that this doesn't work with a range containing a single space.
if (sAll[start + i] == ' ')
{
characterRanges[i] = new CharacterRange(start, i + 1);
}
else
{
characterRanges[i] = new CharacterRange(start + i, 1);
}
}
sf.SetMeasurableCharacterRanges(characterRanges);
RectangleF layoutRect = new RectangleF(0.0f, 0.0f, float.MaxValue, float.MaxValue);
Region[] regions = new Region[sLength];
regions = g.MeasureCharacterRanges(sAll, fontHandle, layoutRect, sf);
for (int i = 0; i < sLength; i++)
{
char ch = sAll[start + i];
float xOfCharRight = (regions[i].GetBounds(g).Right);
int xPixel = (int)(xOfCharRight);
positions.Add(xPixel);
if (ch >= 0x80)
{
positions.Add(xPixel);
}
if (ch >= 0x800)
{
positions.Add(xPixel);
}
}
}
}
catch (System.IO.IOException) {
System.Console.Out.WriteLine("Failed to convert");
}
}
public virtual void xMeasureWidths(byte[] s, int len, TextPositions positions, int enc)
{
try {
String sg = System.Text.Encoding.UTF8.GetString(s, 0, len);
int sLength = sg.Length;
SizeF sz = g.MeasureString(sg, fontHandle, 2000, sf);
float maxWidth = sz.Width;
float x = 0;
float [] xPositions = new float[sLength];
for (int i = 0; i < sLength; i++)
{
char ch = sg[i];
sz = g.MeasureString(new String(ch, 1), fontHandle, 2000, sf);
x += sz.Width;
xPositions[i] = x;
}
float ratio = maxWidth / x;
for (int i = 0; i < sLength; i++)
{
char ch = sg[i];
int xPixel = (int)(xPositions[i] * ratio);
positions.Add(xPixel);
if (ch >= 0x80)
{
positions.Add(xPixel);
}
if (ch >= 0x800)
{
positions.Add(xPixel);
}
}
}
catch (System.IO.IOException) {
System.Console.Out.WriteLine("Failed to convert");
}
}