protected bool disposedValue; // To detect redundant calls
protected virtual void Dispose(bool disposing)
{
disposedValue = true;
if (disposing)
{
_pos = -1;
_obj = null;
}
}
/// <summary>
/// Merges two font collections, returning a new collection object.
/// </summary>
/// <param name="col1">The first font collection.</param>
/// <param name="col2">The second font collection.</param>
/// <param name="sortProperty">Optionally specify a sort property ("Name" is the default). If you specify a property that cannot be found, "Name" will be used.</param>
/// <param name="SortOrder">Optionally specify ascending or descending order.</param>
/// <returns></returns>
public static FontCollection MergeCollections(FontCollection col1, FontCollection col2, string SortProperty = "Name", SortOrder SortOrder = SortOrder.Ascending)
{
var col3 = new FontCollection();
foreach (var c in col1)
{
col3.Add(c);
}
foreach (var c in col2)
{
col3.Add(c);
}
col3.Sort(SortProperty, SortOrder);
return(col3);
}
public FontEnumer(FontCollection obj)
{
_obj = obj;
}
/// <summary>
/// Search for fonts whose names contain the specified string.
/// </summary>
/// <param name="pattern">String to look for.</param>
/// <param name="caseSensitive">Specifies whether the search is case-sensitive.</param>
/// <returns></returns>
public FontCollection Search(string pattern, bool caseSensitive = false, FontSearchOptions searchOptions = FontSearchOptions.Contains)
{
var l = new FontCollection();
string s;
string t;
int i = pattern.Length;
int j;
s = pattern;
if (caseSensitive == false)
{
s = s.ToLower();
}
foreach (var f in this)
{
t = f.elf.elfFullName;
if (caseSensitive == false)
{
t = t.ToLower();
}
switch (searchOptions)
{
case FontSearchOptions.Contains:
{
if (t.Contains(s))
{
l.Add(f);
}
break;
}
case FontSearchOptions.BeginsWith:
{
if (t.Length >= s.Length)
{
if ((t.Substring(0, i) ?? "") == (s ?? ""))
{
l.Add(f);
}
}
break;
}
case FontSearchOptions.EndsWith:
{
if (t.Length >= s.Length)
{
j = t.Length - s.Length;
if ((t.Substring(j, i) ?? "") == (s ?? ""))
{
l.Add(f);
}
}
break;
}
}
}
if (l.Count == 0)
{
return(null);
}
return(l);
}
/// <summary>
/// Initialize the master system font list.
/// </summary>
static FontCollection()
{
SystemFonts = GetFonts();
}
/// <summary>
/// Gets a collection of fonts based on the specified criteria.
/// </summary>
/// <param name="families">Bit Field representing which font families to retrieve.</param>
/// <param name="pitch">Specify the desired pitch.</param>
/// <param name="charset">Specify the desired character set.</param>
/// <param name="weight">Specify the desired weight.</param>
/// <param name="Script">Specify the desired script(s) (this can be a String or an array of Strings).</param>
/// <param name="Style">Specify the desired style(s) (this can be a String or an array of Strings).</param>
/// <returns></returns>
public static FontCollection GetFonts(FontFamilies families = FontFamilies.DontCare, FontPitch pitch = FontPitch.Default, FontCharSet charset = FontCharSet.Default, FontWeight weight = FontWeight.DontCare, object Script = null, object Style = null)
{
IntPtr hdc;
var fonts = new List <ENUMLOGFONTEX>();
var lf = new LOGFONT();
string s;
MemPtr mm = new MemPtr();
string[] wscript;
string[] wstyle;
if (Script is null)
{
wscript = new[] { "Western" };
}
else if (Script is string)
{
wscript = new[] { (string)(Script) };
}
else if (Script is string[])
{
wscript = (string[])Script;
}
else
{
throw new ArgumentException("Invalid parameter type for Script");
}
if (Style is null)
{
wstyle = new[] { "", "Normal", "Regular" };
}
else if (Style is string)
{
wstyle = new[] { (string)(Style) };
}
else if (Style is string[])
{
wstyle = (string[])Style;
}
else
{
throw new ArgumentException("Invalid parameter type for Style");
}
lf.lfCharSet = (byte)charset;
lf.lfFaceName = "";
mm.Alloc(Marshal.SizeOf(lf));
mm.FromStruct(lf);
hdc = User32.CreateDC("DISPLAY", null, IntPtr.Zero, IntPtr.Zero);
int e;
bool bo = false;
e = EnumFontFamiliesEx(hdc, mm, (ref ENUMLOGFONTEX lpelfe, IntPtr lpntme, uint FontType, IntPtr lParam) =>
{
int z;
if (fonts is null)
{
z = 0;
}
else
{
z = fonts.Count;
}
// make sure it's the normal, regular version
bo = false;
foreach (var y in wstyle)
{
if ((y.ToLower() ?? "") == (lpelfe.elfStyle.ToLower() ?? ""))
{
bo = true;
break;
}
}
if (bo == false)
{
return(1);
}
bo = false;
foreach (var y in wscript)
{
if ((y.ToLower() ?? "") == (lpelfe.elfScript.ToLower() ?? ""))
{
bo = true;
break;
}
}
if (bo == false)
{
return(1);
}
bo = false;
if (weight != FontWeight.DontCare && lpelfe.elfLogFont.lfWeight != (int)weight)
{
return(1);
}
// we don't really need two of the same font.
if (z > 0)
{
if ((lpelfe.elfFullName ?? "") == (fonts[z - 1].elfFullName ?? ""))
{
return(1);
}
}
// the @ indicates a vertical writing font which we definitely do not want.
if (lpelfe.elfFullName.Substring(0, 1) == "@")
{
return(1);
}
if (!CheckFamily(lpelfe.elfLogFont, families))
{
return(1);
}
// lpelfe.elfLogFont.lfCharSet = charset
// If (lpelfe.elfLogFont.lfCharSet <> charset) Then Return 1
if (pitch != FontPitch.Default && (lpelfe.elfLogFont.lfPitchAndFamily & 3) != (int)pitch)
{
return(1);
}
fonts.Add(lpelfe);
return(1);
}, IntPtr.Zero, 0U);
User32.DeleteDC(hdc);
mm.Free();
if (e == 0)
{
e = User32.GetLastError();
s = NativeError.Message;
}
FontInfo nf;
var ccol = new FontCollection();
foreach (var f in fonts)
{
nf = new FontInfo(f);
ccol.Add(nf);
}
ccol.Sort();
return(ccol);
}
