public virtual IDictionary <int, int[]> GetActiveCmap()
{
OpenTypeParser.CmapTable cmaps = fontParser.GetCmapTable();
if (cmaps.cmapExt != null)
{
return(cmaps.cmapExt);
}
else
{
if (!cmaps.fontSpecific && cmaps.cmap31 != null)
{
return(cmaps.cmap31);
}
else
{
if (cmaps.fontSpecific && cmaps.cmap10 != null)
{
return(cmaps.cmap10);
}
else
{
if (cmaps.cmap31 != null)
{
return(cmaps.cmap31);
}
else
{
return(cmaps.cmap10);
}
}
}
}
}
/// <summary>Reads the several maps from the table 'cmap'.</summary>
/// <remarks>
/// Reads the several maps from the table 'cmap'. The maps of interest are 1.0 for symbolic
/// fonts and 3.1 for all others. A symbolic font is defined as having the map 3.0.
/// Depends from
/// <c>readGlyphWidths()</c>.
/// </remarks>
private void ReadCmapTable()
{
int[] table_location = tables.Get("cmap");
if (table_location == null)
{
if (fileName != null)
{
throw new iText.IO.IOException(iText.IO.IOException.TableDoesNotExistsIn).SetMessageParams("cmap", fileName
);
}
else
{
throw new iText.IO.IOException(iText.IO.IOException.TableDoesNotExist).SetMessageParams("cmap");
}
}
raf.Seek(table_location[0]);
raf.SkipBytes(2);
int num_tables = raf.ReadUnsignedShort();
int map10 = 0;
int map31 = 0;
int map30 = 0;
int mapExt = 0;
cmaps = new OpenTypeParser.CmapTable();
for (int k = 0; k < num_tables; ++k)
{
int platId = raf.ReadUnsignedShort();
int platSpecId = raf.ReadUnsignedShort();
int offset = raf.ReadInt();
if (platId == 3 && platSpecId == 0)
{
cmaps.fontSpecific = true;
map30 = offset;
}
else
{
if (platId == 3 && platSpecId == 1)
{
map31 = offset;
}
else
{
if (platId == 3 && platSpecId == 10)
{
mapExt = offset;
}
else
{
if (platId == 1 && platSpecId == 0)
{
map10 = offset;
}
}
}
}
}
if (map10 > 0)
{
raf.Seek(table_location[0] + map10);
int format = raf.ReadUnsignedShort();
switch (format)
{
case 0: {
cmaps.cmap10 = ReadFormat0();
break;
}
case 4: {
cmaps.cmap10 = ReadFormat4(false);
break;
}
case 6: {
cmaps.cmap10 = ReadFormat6();
break;
}
}
}
if (map31 > 0)
{
raf.Seek(table_location[0] + map31);
int format = raf.ReadUnsignedShort();
if (format == 4)
{
cmaps.cmap31 = ReadFormat4(false);
}
}
if (map30 > 0)
{
raf.Seek(table_location[0] + map30);
int format = raf.ReadUnsignedShort();
if (format == 4)
{
cmaps.cmap10 = ReadFormat4(cmaps.fontSpecific);
}
else
{
cmaps.fontSpecific = false;
}
}
if (mapExt > 0)
{
raf.Seek(table_location[0] + mapExt);
int format = raf.ReadUnsignedShort();
switch (format)
{
case 0: {
cmaps.cmapExt = ReadFormat0();
break;
}
case 4: {
cmaps.cmapExt = ReadFormat4(false);
break;
}
case 6: {
cmaps.cmapExt = ReadFormat6();
break;
}
case 12: {
cmaps.cmapExt = ReadFormat12();
break;
}
}
}
}
