FontSubstitutionRule

FontSubstitutionRule class

This is an abstract base class for the font substitution rule.

public abstract class FontSubstitutionRule

Properties

Name Description
virtual Enabled { get; set; } Specifies whether the rule is enabled or not.

Examples

Shows operating system-dependent font config substitution.

FontSettings fontSettings = new FontSettings();
FontConfigSubstitutionRule fontConfigSubstitution =
    fontSettings.SubstitutionSettings.FontConfigSubstitution;

bool isWindows = new[] {PlatformID.Win32NT, PlatformID.Win32S, PlatformID.Win32Windows, PlatformID.WinCE}
    .Any(p => Environment.OSVersion.Platform == p);

// The FontConfigSubstitutionRule object works differently on Windows/non-Windows platforms.
// On Windows, it is unavailable.
if (isWindows)
{
    Assert.False(fontConfigSubstitution.Enabled);
    Assert.False(fontConfigSubstitution.IsFontConfigAvailable());
}

bool isLinuxOrMac =
    new[] {PlatformID.Unix, PlatformID.MacOSX}.Any(p => Environment.OSVersion.Platform == p);

// On Linux/Mac, we will have access to it, and will be able to perform operations.
if (isLinuxOrMac)
{
    Assert.True(fontConfigSubstitution.Enabled);
    Assert.True(fontConfigSubstitution.IsFontConfigAvailable());

    fontConfigSubstitution.ResetCache();
}

See Also