public Font(Document doc, string fontName, System.Drawing.Font winFont)
: base(doc)
{
_fontName = fontName;
//TBD - I have no idea why 720 seems to work. I don't understand the relationship
// between windows font coordinates and PDF glyph coordinates. It seems like this
// should be 1000, but that doesn't work.
System.Drawing.Font f = new System.Drawing.Font(winFont.FontFamily, 720, winFont.Style, GraphicsUnit.Point);
IntPtr hDC = WinGdi.GetDC(IntPtr.Zero); //Screen DC
IntPtr hObjOld = WinGdi.SelectObject(hDC, f.ToHfont());
uint cbSize = WinGdi.GetOutlineTextMetrics(hDC, 0, IntPtr.Zero);
if (cbSize == 0)
{
throw new Exception();
}
StringBuilder sb = new StringBuilder(50);
WinGdi.GetTextFace(hDC, 50, sb);
IntPtr buffer = Marshal.AllocHGlobal((int)cbSize);
try
{
if (WinGdi.GetOutlineTextMetrics(hDC, cbSize, buffer) != 0)
{
_otm = (WinGdi.OUTLINETEXTMETRIC)Marshal.PtrToStructure(buffer, typeof(WinGdi.OUTLINETEXTMETRIC));
_faceName = Marshal.PtrToStringAnsi((IntPtr)((long)buffer + _otm.pFaceName));
_faceName = _faceName.Replace(" ", "-");
_otm.EMSquare = (uint)(_otm.EMSquare / winFont.SizeInPoints);
}
}
finally
{
Marshal.FreeHGlobal(buffer);
}
_fw = new FontWidths(doc, hDC, _otm);
_fd = new FontDescriptor(doc, _faceName, _otm);
WinGdi.SelectObject(hDC, hObjOld);
WinGdi.ReleaseDC(IntPtr.Zero, hDC);
}
