// Convert dart_xform._value[0...3] ==> RSTransform
RSTransform DartConverter<RSTransform>::FromDart(Dart_Handle dart_xform) {
RSTransform result;
result.is_null = true;
if (Dart_IsNull(dart_xform))
return result;
Dart_Handle value =
Dart_GetField(dart_xform, DOMDartState::Current()->value_handle());
if (Dart_IsNull(value))
return result;
Dart_TypedData_Type type;
float* data = nullptr;
intptr_t num_elements = 0;
Dart_TypedDataAcquireData(
value, &type, reinterpret_cast<void**>(&data), &num_elements);
DCHECK(!LogIfError(value));
ASSERT(type == Dart_TypedData_kFloat32 && num_elements == 4);
SkScalar* dest[] = {
&result.sk_xform.fSCos,
&result.sk_xform.fSSin,
&result.sk_xform.fTx,
&result.sk_xform.fTy
};
for (intptr_t i = 0; i < 4; ++i)
*dest[i] = data[i];
Dart_TypedDataReleaseData(value);
result.is_null = false;
return result;
}
// Construct an SkRRect from a Dart RRect object.
// The Dart RRect has a _value field which is a Float32List containing
// [left, top, right, bottom, xRad, yRad]
RRect DartConverter<RRect>::FromDart(Dart_Handle dart_rrect) {
RRect result;
result.is_null = true;
if (Dart_IsNull(dart_rrect))
return result;
Dart_Handle value =
Dart_GetField(dart_rrect, UIDartState::Current()->value_handle());
if (Dart_IsNull(value))
return result;
Dart_TypedData_Type type;
float* data = nullptr;
intptr_t num_elements = 0;
Dart_TypedDataAcquireData(
value, &type, reinterpret_cast<void**>(&data), &num_elements);
DCHECK(!LogIfError(value));
ASSERT(type == Dart_TypedData_kFloat32 && num_elements == 6);
result.sk_rrect.setRectXY(
SkRect::MakeLTRB(data[0], data[1], data[2], data[3]),
data[4], data[5]);
Dart_TypedDataReleaseData(value);
result.is_null = false;
return result;
}
// Convert handle.x,y ==> SkSize.
Offset DartConverter<Offset>::FromDart(Dart_Handle handle) {
DCHECK(!LogIfError(handle));
Dart_Handle dx_value =
Dart_GetField(handle, DOMDartState::Current()->dx_handle());
Dart_Handle dy_value =
Dart_GetField(handle, DOMDartState::Current()->dy_handle());
double dx = 0.0, dy = 0.0;
Dart_Handle err = Dart_DoubleValue(dx_value, &dx);
DCHECK(!LogIfError(err));
err = Dart_DoubleValue(dy_value, &dy);
DCHECK(!LogIfError(err));
Offset result;
result.sk_size.set(dx, dy);
result.is_null = false;
return result;
}
Paint DartConverter<Paint>::FromDart(Dart_Handle dart_paint) {
Paint result;
result.is_null = true;
if (Dart_IsNull(dart_paint))
return result;
Dart_Handle value_handle = UIDartState::Current()->value_handle();
Dart_Handle data = Dart_GetField(dart_paint, value_handle);
if (Dart_IsInteger(data)) {
// This is a simple Paint object that just contains a color with
// anti-aliasing enabled. The data is the color, represented as an
// int in the same format as SkColor.
result.sk_paint.setColor(DartConverter<SkColor>::FromDart(data));
result.sk_paint.setAntiAlias(true);
result.is_null = false;
return result;
}
DCHECK(Dart_IsList(data));
intptr_t length;
Dart_ListLength(data, &length);
CHECK_EQ(length, kNumberOfPaintFields);
Dart_Handle values[kNumberOfPaintFields];
Dart_Handle range_result = Dart_ListGetRange(data, 0, kNumberOfPaintFields,
values);
if (Dart_IsError(range_result)) {
return result;
}
SkPaint& paint = result.sk_paint;
if (!Dart_IsNull(values[kStyle]))
paint.setStyle(static_cast<SkPaint::Style>(DartConverter<int>::FromDart(values[kStyle])));
if (!Dart_IsNull(values[kStrokeWidth]))
paint.setStrokeWidth(DartConverter<SkScalar>::FromDart(values[kStrokeWidth]));
if (!Dart_IsNull(values[kStrokeCap]))
paint.setStrokeCap(static_cast<SkPaint::Cap>(DartConverter<int>::FromDart(values[kStrokeCap])));
if (!Dart_IsNull(values[kIsAntiAlias]))
paint.setAntiAlias(DartConverter<bool>::FromDart(values[kIsAntiAlias]));
if (!Dart_IsNull(values[kColor]))
paint.setColor(static_cast<SkColor>(DartConverter<int>::FromDart(values[kColor])));
if (!Dart_IsNull(values[kTransferMode]))
paint.setXfermodeMode(static_cast<SkXfermode::Mode>(DartConverter<int>::FromDart(values[kTransferMode])));
if (!Dart_IsNull(values[kColorFilter]))
paint.setColorFilter(DartConverter<ColorFilter*>::FromDart(values[kColorFilter])->filter());
if (!Dart_IsNull(values[kMaskFilter]))
paint.setMaskFilter(DartConverter<MaskFilter*>::FromDart(values[kMaskFilter])->filter());
if (!Dart_IsNull(values[kFilterQuality]))
paint.setFilterQuality(static_cast<SkFilterQuality>(DartConverter<int>::FromDart(values[kFilterQuality])));
if (!Dart_IsNull(values[kShader]))
paint.setShader(DartConverter<Shader*>::FromDart(values[kShader])->shader());
result.is_null = false;
return result;
}
// Convert handle.x,y ==> SkPoint.
Point DartConverter<Point>::FromDart(Dart_Handle handle) {
Point result;
result.is_null = true;
DCHECK(!LogIfError(handle));
Dart_Handle x_value =
Dart_GetField(handle, DOMDartState::Current()->x_handle());
Dart_Handle y_value =
Dart_GetField(handle, DOMDartState::Current()->y_handle());
double x = 0.0, y = 0.0;
Dart_Handle err = Dart_DoubleValue(x_value, &x);
DCHECK(!LogIfError(err));
err = Dart_DoubleValue(y_value, &y);
DCHECK(!LogIfError(err));
result.sk_point.set(x, y);
result.is_null = false;
return result;
}
gboolean _gdart_marshaller_check_argument_flags(
GdartBridgeContext *self,
Dart_Handle element,
gpointer type,
const EnumInfoKlass *type_klass,
Dart_Handle *dart_error_out,
GError **error)
{
Dart_Handle base_object_class, temp_result, inner_container, name_handle;
bool is_proper_type;
int64_t raw_result;
base_object_class = gdart_bridge_context_get_base_enum_class(self, dart_error_out, error);
if (base_object_class == NULL) {
return false;
}
temp_result = Dart_ObjectIsType(element, base_object_class, &is_proper_type);
if (Dart_IsError(temp_result)) {
*dart_error_out = temp_result;
g_set_error(error, GDART_ERROR, 1, "Error from Dart operation.");
goto error;
}
if (!is_proper_type) {
*dart_error_out = gdart_bridge_context_create_error_handle(self,
"%s: received an unexpected base info type", G_STRFUNC);
g_set_error(error, GDART_ERROR, 1,
"%s: received an unexpected base info type", G_STRFUNC);
goto error;
}
name_handle = Dart_NewStringFromCString("index");
if (Dart_IsError(name_handle)) {
*dart_error_out = name_handle;
g_set_error(error, GDART_ERROR, 1, "Error from Dart operation.");
return FALSE;
}
inner_container = Dart_GetField(element, name_handle);
if (Dart_IsError(inner_container)) {
*dart_error_out = inner_container;
g_set_error(error, GDART_ERROR, 1, "Error from Dart operation.");
return FALSE;
}
temp_result = Dart_IntegerToInt64(inner_container, &raw_result);
if (Dart_IsError(temp_result)) {
*dart_error_out = temp_result;
g_set_error(error, GDART_ERROR, 1, "Error from Dart operation.");
return FALSE;
}
return TRUE;
error:
return FALSE;
}
void VM::loadCinderDartLib()
{
string script = getCinderDartScript();
Dart_Handle source = toDart( script );
CIDART_CHECK( source );
Dart_Handle cinderDartLib = Dart_LoadLibrary( toDart( "cinder.dart" ), source, 0, 0 );
if( Dart_IsError( cinderDartLib ) ) {
throw DartException( string( "failed to load cinder.dart, error message: " ) + Dart_GetError( cinderDartLib ) );
}
CIDART_CHECK( Dart_SetNativeResolver( cinderDartLib, Script::resolveNameHandler, NULL ) );
// finalize any scripts loaded, needs to be done before the libs can be looked up and modified below
CIDART_CHECK( Dart_FinalizeLoading( false ) );
// swap in custom _printClosure to enable print() in dart
Dart_Handle internalLib = Dart_LookupLibrary( toDart( "dart:_internal" ) );
CIDART_CHECK( internalLib );
Dart_Handle print = Dart_GetField( cinderDartLib, toDart( "_printClosure" ) );
CIDART_CHECK( print );
CIDART_CHECK( Dart_SetField( internalLib, toDart( "_printClosure" ), print ) );
}
gboolean _gdart_marshaller_check_argument_object(
GdartBridgeContext *self,
Dart_Handle element,
gpointer type,
const ObjectInfoKlass *type_klass,
Dart_Handle *dart_error_out,
GError **error)
{
Dart_Handle base_object_class, temp_result, inner_container, name_handle;
bool is_proper_type;
RawPointerContainer* raw_pointer;
GdartBridgeContextWrappedObject* object_info;
GObject* object;
GType gtype;
GIInfoType object_info_type;
base_object_class = gdart_bridge_context_get_base_object_class(self, dart_error_out, error);
if (base_object_class == NULL) {
return false;
}
if (Dart_IsNull(element)) {
return TRUE;
}
temp_result = Dart_ObjectIsType(element, base_object_class, &is_proper_type);
if (Dart_IsError(temp_result)) {
*dart_error_out = temp_result;
g_set_error(error, GDART_ERROR, 1, "Error from Dart operation.");
goto error;
}
if (!is_proper_type) {
*dart_error_out = gdart_bridge_context_create_error_handle(self,
"%s: received an unexpected base info type", G_STRFUNC);
g_set_error(error, GDART_ERROR, 1,
"%s: received an unexpected base info type", G_STRFUNC);
goto error;
}
name_handle = Dart_NewStringFromCString("_internal");
if (Dart_IsError(name_handle)) {
*dart_error_out = name_handle;
g_set_error(error, GDART_ERROR, 1, "Error from Dart operation.");
return FALSE;
}
inner_container = Dart_GetField(element, name_handle);
if (Dart_IsError(inner_container)) {
*dart_error_out = inner_container;
g_set_error(error, GDART_ERROR, 1, "Error from Dart operation.");
return FALSE;
}
temp_result = Dart_GetNativeInstanceField(inner_container, 0, (intptr_t*) &raw_pointer);
if (Dart_IsError(temp_result)) {
*dart_error_out = temp_result;
g_set_error(error, GDART_ERROR, 1, "Error from Dart operation.");
return FALSE;
}
object_info = (GdartBridgeContextWrappedObject*) raw_pointer->raw_pointer;
if (!object_info->object_info_klass.get_type(object_info->object_info,
self,
&object_info_type,
dart_error_out,
error))
return FALSE;
if (object_info_type != GI_INFO_TYPE_OBJECT) {
*dart_error_out = gdart_bridge_context_create_error_handle(self,
"%s: expected an object but got a struct", G_STRFUNC);
g_set_error(error, GDART_ERROR, 1,
"%s: expected an object but got a struct", G_STRFUNC);
goto error;
}
object = (GObject*) object_info->object;
if (!type_klass->get_gtype(type,
self,
>ype,
dart_error_out,
error))
return FALSE;
if (!g_type_is_a(G_OBJECT_TYPE(object), gtype)) {
*dart_error_out = gdart_bridge_context_create_error_handle(self,
"%s: expected an object of one type but got another", G_STRFUNC);
g_set_error(error, GDART_ERROR, 1,
"%s: expected an object of one type but got another", G_STRFUNC);
goto error;
}
return TRUE;
error:
return FALSE;
}
gboolean _gdart_marshaller_check_argument_struct_from_gtype(
GdartBridgeContext *self,
Dart_Handle element,
GType type,
Dart_Handle *dart_error_out,
GError **error)
{
Dart_Handle base_object_class, temp_result, inner_container, name_handle;
bool is_proper_type;
RawPointerContainer* raw_pointer;
GdartBridgeContextWrappedObject* object_info;
base_object_class = gdart_bridge_context_get_base_object_class(self, dart_error_out, error);
if (base_object_class == NULL) {
return false;
}
if (Dart_IsNull(element)) {
return TRUE;
}
temp_result = Dart_ObjectIsType(element, base_object_class, &is_proper_type);
if (Dart_IsError(temp_result)) {
*dart_error_out = temp_result;
g_set_error(error, GDART_ERROR, 1, "Error from Dart operation.");
goto error;
}
if (!is_proper_type) {
*dart_error_out = gdart_bridge_context_create_error_handle(self,
"%s: received an unexpected base info type", G_STRFUNC);
g_set_error(error, GDART_ERROR, 1,
"%s: received an unexpected base info type", G_STRFUNC);
goto error;
}
name_handle = Dart_NewStringFromCString("_internal");
if (Dart_IsError(name_handle)) {
*dart_error_out = name_handle;
g_set_error(error, GDART_ERROR, 1, "Error from Dart operation.");
return FALSE;
}
inner_container = Dart_GetField(element, name_handle);
if (Dart_IsError(inner_container)) {
*dart_error_out = inner_container;
g_set_error(error, GDART_ERROR, 1, "Error from Dart operation.");
return FALSE;
}
temp_result = Dart_GetNativeInstanceField(inner_container, 0, (intptr_t*) &raw_pointer);
if (Dart_IsError(temp_result)) {
*dart_error_out = temp_result;
g_set_error(error, GDART_ERROR, 1, "Error from Dart operation.");
return FALSE;
}
object_info = (GdartBridgeContextWrappedObject*) raw_pointer->raw_pointer;
/* TODO: This is super-unreliable because there is no way to trust the gtype
* given.
*
if (object_info->type != type) {
*dart_error_out = gdart_bridge_context_create_error_handle(self,
"%s: got an argument of the wrong type. This might be due to a problem in the GIR file", G_STRFUNC);
g_set_error(error, GDART_ERROR, 1,
"%s: got an argument of the wrong type. This might be due to a problem in the GIR file", G_STRFUNC);
goto error;
}
*/
return TRUE;
error:
return FALSE;
}
