private short Format1DeltaGlyphId(FontTable Table)
{
Invariant.Assert(Format(Table)==1);
return Table.GetShort(offset + offsetFormat1DeltaGlyphId);
}
public void AdjustPos( FontTable Table,
LayoutMetrics Metrics,
ref LayoutOffset GlyphOffset,
ref int GlyphAdvance
)
{
int curOffset=offset;
if ((format&XPlacmentFlag)!=0)
{
GlyphOffset.dx += Positioning.DesignToPixels(Metrics.DesignEmHeight,Metrics.PixelsEmWidth,
Table.GetShort(curOffset));
curOffset+=2;
}
if ((format&YPlacmentFlag)!=0)
{
GlyphOffset.dy += Positioning.DesignToPixels(Metrics.DesignEmHeight,Metrics.PixelsEmHeight,
Table.GetShort(curOffset));
curOffset+=2;
}
if ((format&XAdvanceFlag)!=0)
{
GlyphAdvance += Positioning.DesignToPixels(Metrics.DesignEmHeight,Metrics.PixelsEmWidth,
Table.GetShort(curOffset));
curOffset+=2;
}
if ((format&YAdvanceFlag)!=0)
{
GlyphAdvance += Positioning.DesignToPixels(Metrics.DesignEmHeight,Metrics.PixelsEmHeight,
Table.GetShort(curOffset));
curOffset+=2;
}
if ((format&XPlacementDeviceFlag)!=0)
{
int deviceTableOffset = Table.GetOffset(curOffset);
if (deviceTableOffset != FontTable.NullOffset)
{
DeviceTable deviceTable = new DeviceTable(baseTableOffset+deviceTableOffset);
GlyphOffset.dx += deviceTable.Value(Table,Metrics.PixelsEmWidth);
}
curOffset+=2;
}
if ((format&YPlacementDeviceFlag)!=0)
{
int deviceTableOffset = Table.GetOffset(curOffset);
if (deviceTableOffset != FontTable.NullOffset)
{
DeviceTable deviceTable = new DeviceTable(baseTableOffset+deviceTableOffset);
GlyphOffset.dy += deviceTable.Value(Table,Metrics.PixelsEmHeight);
}
curOffset+=2;
}
if ((format&XAdvanceDeviceFlag)!=0)
{
if (Metrics.Direction==TextFlowDirection.LTR || Metrics.Direction==TextFlowDirection.RTL)
{
int deviceTableOffset = Table.GetOffset(curOffset);
if (deviceTableOffset != FontTable.NullOffset)
{
DeviceTable deviceTable = new DeviceTable(baseTableOffset+deviceTableOffset);
GlyphAdvance += deviceTable.Value(Table,Metrics.PixelsEmWidth);
}
}
curOffset+=2;
}
if ((format&YAdvanceDeviceFlag)!=0)
{
if (Metrics.Direction==TextFlowDirection.TTB || Metrics.Direction==TextFlowDirection.BTT)
{
int deviceTableOffset = Table.GetOffset(curOffset);
if (deviceTableOffset != FontTable.NullOffset)
{
DeviceTable deviceTable = new DeviceTable(baseTableOffset+deviceTableOffset);
GlyphAdvance += deviceTable.Value(Table,Metrics.PixelsEmHeight);
}
}
curOffset+=2;
}
}
private short YCoordinate(FontTable Table)
{
return Table.GetShort(offset + offsetYCoordinate);
}
private short Format1DeltaGlyphId(FontTable Table)
{
Invariant.Assert(Format(Table) == 1);
return(Table.GetShort(offset + offsetFormat1DeltaGlyphId));
}