// Returns whether or not target was changed
internal static bool FontToIFont(Font source, UnsafeNativeMethods.IFont target) {
bool changed = false;
// we need to go through all the pain of the diff here because
// it looks like setting them all has different results based on the
// order and each individual IFont implementor...
//
string fontName = target.GetName();
if (!source.Name.Equals(fontName)) {
target.SetName(source.Name);
changed = true;
}
// [....], Review: this always seems to come back as
// the point size * 10000 (HIMETRIC?), regardless
// or ratio or mapping mode, and despite what
// the documentation says...
//
// Either figure out what's going on here or
// do the process that the windows forms FONT object does here
// or, worse case, just create another Font object
// from the handle, but that's pretty heavy...
//
float fontSize = (float)target.GetSize() / 10000;
// size must be in points
float winformsSize = source.SizeInPoints;
if (winformsSize != fontSize) {
target.SetSize((long)(winformsSize * 10000));
changed = true;
}
NativeMethods.LOGFONT logfont = new NativeMethods.LOGFONT();
IntSecurity.ObjectFromWin32Handle.Assert();
try {
source.ToLogFont(logfont);
}
finally {
CodeAccessPermission.RevertAssert();
}
short fontWeight = target.GetWeight();
if (fontWeight != logfont.lfWeight) {
target.SetWeight((short)logfont.lfWeight);
changed = true;
}
bool fontBold = target.GetBold();
if (fontBold != (logfont.lfWeight >= 700)) {
target.SetBold(logfont.lfWeight >= 700);
changed = true;
}
bool fontItalic = target.GetItalic();
if (fontItalic != (0 != logfont.lfItalic)) {
target.SetItalic(0 != logfont.lfItalic);
changed = true;
}
bool fontUnderline = target.GetUnderline();
if (fontUnderline != (0 != logfont.lfUnderline)) {
target.SetUnderline(0 != logfont.lfUnderline);
changed = true;
}
bool fontStrike = target.GetStrikethrough();
if (fontStrike != (0 != logfont.lfStrikeOut)) {
target.SetStrikethrough(0 != logfont.lfStrikeOut);
changed = true;
}
short fontCharset = target.GetCharset();
if (fontCharset != logfont.lfCharSet) {
target.SetCharset(logfont.lfCharSet);
changed = true;
}
return changed;
}
