public static unsafe object ToObject(Type type, Value *value)
{
if (value == null || value->IsNull)
{
return(null);
}
if (value->boxed_valuetype.IsAllocated)
{
return(value->boxed_valuetype.Target);
}
if (value->IsGCHandle)
{
IntPtr managed_object = value->u.p;
GCHandle handle = GCHandle.FromIntPtr(managed_object);
return(handle.Target);
}
switch (value->Kind)
{
case Kind.INVALID:
return(null);
case Kind.DEPENDENCYPROPERTY:
return(DependencyProperty.Lookup(value->u.p));
case Kind.BOOL:
return(value->u.i32 != 0);
case Kind.DOUBLE:
return(value->u.d);
case Kind.FLOAT:
return(value->u.f);
case Kind.UINT64:
return(value->u.ui64);
case Kind.INT64:
return(value->u.i64);
case Kind.TIMESPAN:
return(new TimeSpan(value->u.i64));
case Kind.CURSORTYPE:
return(Cursors.FromEnum((CursorType)value->u.i32));
case Kind.TEXTDECORATIONS:
return((value->u.i32 == (int)TextDecorationKind.Underline) ? TextDecorations.Underline : null);
case Kind.INT32:
return(value->u.i32);
case Kind.UINT32:
return(value->u.ui32);
case Kind.CHAR:
return((char)value->u.ui32);
case Kind.SURFACE:
return(NativeDependencyObjectHelper.FromIntPtr(value->u.p));
case Kind.STRING: {
return(Marshal.PtrToStringAuto(value->u.p));
}
case Kind.URI:
return(UriHelper.FromNativeUri(value->u.p));
case Kind.XMLLANGUAGE: {
string str = Marshal.PtrToStringAuto(value->u.p);
return(XmlLanguage.GetLanguage(str));
}
case Kind.FONTFAMILY: {
UnmanagedFontFamily *family = (UnmanagedFontFamily *)value->u.p;
return(new FontFamily(family == null ? null : Marshal.PtrToStringAuto(family->source)));
}
case Kind.FONTSTRETCH: {
UnmanagedFontStretch *stretch = (UnmanagedFontStretch *)value->u.p;
return(new FontStretch(stretch == null ? FontStretchKind.Normal : stretch->stretch));
}
case Kind.FONTSTYLE: {
UnmanagedFontStyle *style = (UnmanagedFontStyle *)value->u.p;
return(new FontStyle(style == null ? FontStyleKind.Normal : style->style));
}
case Kind.FONTWEIGHT: {
UnmanagedFontWeight *weight = (UnmanagedFontWeight *)value->u.p;
return(new FontWeight(weight == null ? FontWeightKind.Normal : weight->weight));
}
case Kind.FONTSOURCE: {
UnmanagedFontSource * fs = (UnmanagedFontSource *)value->u.p;
ManagedStreamCallbacks callbacks;
GlyphTypeface typeface;
StreamWrapper wrapper;
switch (fs->type)
{
case FontSourceType.ManagedStream:
callbacks = (ManagedStreamCallbacks)Marshal.PtrToStructure(fs->source.stream, typeof(ManagedStreamCallbacks));
wrapper = (StreamWrapper)GCHandle.FromIntPtr(callbacks.handle).Target;
return(new FontSource(wrapper.stream));
case FontSourceType.GlyphTypeface:
typeface = new GlyphTypeface(fs->source.typeface);
return(new FontSource(typeface));
default:
throw new Exception(String.Format("Do not know how to create a FontSource of type {0}",
fs->type.ToString()));
}
}
case Kind.GLYPHTYPEFACE: {
return(new GlyphTypeface(value->u.p));
}
case Kind.PROPERTYPATH: {
UnmanagedPropertyPath *propertypath = (UnmanagedPropertyPath *)value->u.p;
if (propertypath == null)
{
return(new PropertyPath(null));
}
if (propertypath->property != IntPtr.Zero)
{
return(null);
}
return(new PropertyPath(Marshal.PtrToStringAuto(propertypath->pathString), Marshal.PtrToStringAuto(propertypath->expandedPathString)));
}
case Kind.POINT: {
Point *point = (Point *)value->u.p;
return((point == null) ? new Point(0, 0) : *point);
}
case Kind.RECT: {
Rect *rect = (Rect *)value->u.p;
return((rect == null) ? new Rect(0, 0, 0, 0) : *rect);
}
case Kind.SIZE: {
Size *size = (Size *)value->u.p;
return((size == null) ? new Size(0, 0) : *size);
}
case Kind.CORNERRADIUS: {
CornerRadius *corner = (CornerRadius *)value->u.p;
return((corner == null) ? new CornerRadius(0) : *corner);
}
case Kind.AUDIOFORMAT: {
UnmanagedAudioFormat *format = (UnmanagedAudioFormat *)value->u.p;
return((format == null) ? new AudioFormat() : format->ToAudioFormat());
}
case Kind.VIDEOFORMAT: {
UnmanagedVideoFormat *format = (UnmanagedVideoFormat *)value->u.p;
return((format == null) ? new VideoFormat() : format->ToVideoFormat());
}
case Kind.THICKNESS: {
Thickness *thickness = (Thickness *)value->u.p;
return((thickness == null) ? new Thickness(0) : *thickness);
}
case Kind.COLOR: {
UnmanagedColor *color = (UnmanagedColor *)value->u.p;
if (color == null)
{
return(new Color());
}
return(color->ToColor());
}
case Kind.MATRIX:
case Kind.UNMANAGEDMATRIX: {
return(new Matrix(value->u.p));
}
case Kind.MATRIX3D:
case Kind.UNMANAGEDMATRIX3D: {
return(new Matrix3D(value->u.p));
}
case Kind.STYLUSPOINT:
case Kind.UNMANAGEDSTYLUSPOINT: {
var kind = value->Kind;
var ptr = value->u.p;
var x = (double)Value.ToObject(typeof(double), NativeMethods.dependency_object_get_value(ptr, UnmanagedStylusPoint.XProperty.Native));
var y = (double)Value.ToObject(typeof(double), NativeMethods.dependency_object_get_value(ptr, UnmanagedStylusPoint.YProperty.Native));
var pressure = (double)Value.ToObject(typeof(double), NativeMethods.dependency_object_get_value(ptr, UnmanagedStylusPoint.PressureFactorProperty.Native));
return(new StylusPoint {
X = x, Y = y, PressureFactor = (float)pressure
});
}
case Kind.DURATION: {
Duration *duration = (Duration *)value->u.p;
return((duration == null) ? Duration.Automatic : *duration);
}
case Kind.KEYTIME: {
KeyTime *keytime = (KeyTime *)value->u.p;
return((keytime == null) ? KeyTime.FromTimeSpan(TimeSpan.Zero) : *keytime);
}
case Kind.GRIDLENGTH: {
GridLength *gridlength = (GridLength *)value->u.p;
return((gridlength == null) ? new GridLength() : *gridlength);
}
case Kind.REPEATBEHAVIOR: {
RepeatBehavior *repeat = (RepeatBehavior *)value->u.p;
return((repeat == null) ? new RepeatBehavior() : *repeat);
}
case Kind.MEDIAATTRIBUTE_COLLECTION: {
IntPtr p = value->u.p;
if (p == IntPtr.Zero)
{
return(null);
}
int count = NativeMethods.collection_get_count(p);
var dict = new Dictionary <string, string> ();
for (int i = 0; i < count; i++)
{
IntPtr map = NativeMethods.collection_get_value_at(p, i);
if (map == IntPtr.Zero)
{
continue;
}
Value *attribute = (Value *)map;
if (attribute->Kind != Kind.MEDIAATTRIBUTE || attribute->u.p == IntPtr.Zero)
{
continue;
}
string name = NativeMethods.media_attribute_get_name(attribute->u.p);
string val = NativeMethods.media_attribute_get_value(attribute->u.p);
dict.Add(name, val);
}
return(dict);
}
case Kind.MANAGEDTYPEINFO: {
ManagedTypeInfo *type_info = (ManagedTypeInfo *)value->u.p;
if (type_info == null)
{
return(null);
}
return(Deployment.Current.Types.KindToType(type_info->Kind));
}
default:
Type tt = Deployment.Current.Types.KindToType(value->Kind);
if (tt != null && tt.IsEnum)
{
return(Enum.ToObject(tt, value->u.i32));
}
break;
}
if (NativeMethods.type_is_event_object(value->Kind))
{
if (value->u.p == IntPtr.Zero)
{
return(null);
}
return(NativeDependencyObjectHelper.Lookup(value->u.p));
}
throw new Exception(String.Format("Do not know how to convert {0} {1}. Managed type: {2}",
value->Kind, (int)value->Kind, Deployment.Current.Types.KindToType(value->Kind)));
}
public override object ConvertFrom(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value)
{
if (destinationType == typeof(object))
{
return(value);
}
if (destinationType == typeof(string))
{
return(value.ToString());
}
if (destinationType.IsInstanceOfType(value))
{
return(value);
}
string str_val = value as String;
if (str_val != null)
{
if (destinationType.IsEnum)
{
return(Enum.Parse(destinationType, str_val, true));
}
if (destinationType == typeof(GridLength))
{
if (String.Compare(str_val, "Auto", true) == 0)
{
return(new GridLength(1, GridUnitType.Auto));
}
else
{
str_val = str_val.Trim();
var length = 1.0;
var type = str_val.EndsWith("*") ? GridUnitType.Star : GridUnitType.Pixel;
if (str_val.Length == 0)
{
length = 0.0;
}
if (type == GridUnitType.Star)
{
str_val = str_val.Substring(0, str_val.Length - 1);
}
if (str_val.Length > 0)
{
length = double.Parse(str_val, Helper.DefaultCulture);
}
return(new GridLength(length, type));
}
}
if (destinationType == typeof(int))
{
return(int.Parse(str_val, NumberStyles.Any, Helper.DefaultCulture));
}
if (destinationType == typeof(double) && str_val == "Auto")
{
return(Double.NaN);
}
if (destinationType == typeof(TimeSpan))
{
TimeSpan span;
if (TimeSpan.TryParse(str_val, out span))
{
return(span);
}
}
if (destinationType == typeof(FontWeight))
{
return(new FontWeight((FontWeightKind)Enum.Parse(typeof(FontWeightKind), str_val, true)));
}
if (destinationType == typeof(FontStyle))
{
return(new FontStyle((FontStyleKind)Enum.Parse(typeof(FontStyleKind), str_val, true)));
}
if (destinationType == typeof(FontStretch))
{
return(new FontStretch((FontStretchKind)Enum.Parse(typeof(FontStretchKind), str_val, true)));
}
if (destinationType == typeof(Cursor))
{
return(Cursors.FromEnum((CursorType)Enum.Parse(typeof(CursorType), str_val, true)));
}
if (destinationType == typeof(CacheMode))
{
if (str_val == "BitmapCache")
{
return(new BitmapCache());
}
}
if (destinationType == typeof(Rect))
{
return(Rect.FromString(str_val));
}
if (destinationType == typeof(Point))
{
return(Point.FromString(str_val));
}
if (destinationType == typeof(FontFamily))
{
return(new FontFamily(str_val));
}
if (destinationType == typeof(TextDecorationCollection))
{
if (str_val == "Underline")
{
return(TextDecorations.Underline);
}
else if (str_val == "None")
{
return(null);
}
}
if (destinationType == typeof(System.Globalization.CultureInfo))
{
return(CultureInfo.GetCultureInfo(str_val));
}
if (destinationType == typeof(ImageSource) ||
destinationType == typeof(BitmapSource) ||
destinationType == typeof(BitmapImage))
{
return(new BitmapImage(new Uri(str_val, UriKind.RelativeOrAbsolute)));
}
}
if (value is Color && destinationType.IsAssignableFrom(typeof(SolidColorBrush)))
{
return(new SolidColorBrush((Color)value));
}
// FontStretch/Style/Weight and enums are stored as uint32 in 2.0
if (Deployment.Current.RuntimeVersion[0] == '2' && value is UInt32)
{
if (destinationType == typeof(FontStyle))
{
return(new FontStyle((FontStyleKind)value));
}
if (destinationType == typeof(FontStretch))
{
return(new FontStretch((FontStretchKind)value));
}
if (destinationType == typeof(FontWeight))
{
return(new FontWeight((FontWeightKind)value));
}
if (destinationType.IsEnum)
{
try {
object v = Enum.ToObject(destinationType, value);
if (Enum.IsDefined(destinationType, v))
{
return(v);
}
} catch (Exception) {
}
}
}
if (IsAssignableToIConvertible(value.GetType()) && IsAssignableToIConvertible(destinationType))
{
return(ValueFromConvertible(destinationType, (IConvertible)value));
}
if (value is Thickness)
{
if (destinationType == typeof(CornerRadius))
{
Thickness thickness = (Thickness)value;
// Give the same results as if we did Thickness.ToString() and then parsed that as a CornerRadius
return(new CornerRadius(thickness.Left, thickness.Top, thickness.Right, thickness.Bottom));
}
else if (destinationType == typeof(double))
{
return(((Thickness)value).Left);
}
}
if (str_val != null)
{
Kind k = destinationKind;
IntPtr unmanaged_value = IntPtr.Zero;
try {
if (NativeMethods.value_from_str(k,
propertyName,
str_val,
out unmanaged_value))
{
value = Value.ToObject(destinationType, unmanaged_value);
return(value);
}
} finally {
NativeMethods.value_delete_value2(unmanaged_value);
}
}
if (destinationType.IsAssignableFrom(value.GetType()))
{
return(value);
}
// The base implementation doesn't do anything but
// throw, so throw here instead so we have more
// context.
throw new NotImplementedException(String.Format("Unimplemented type conversion from {0} to {1}",
value.GetType().ToString(),
destinationType.ToString()));
return(base.ConvertFrom(context, culture, value));
}