| 180 | } |
| 181 | |
| 182 | ConstTransformRcPtr NamedTransform::GetTransform(const ConstNamedTransformRcPtr & nt, |
| 183 | TransformDirection dir) |
| 184 | { |
| 185 | if (nt) |
| 186 | { |
| 187 | const auto forwardTransform = nt->getTransform(TRANSFORM_DIR_FORWARD); |
| 188 | const auto inverseTransform = nt->getTransform(TRANSFORM_DIR_INVERSE); |
| 189 | if (dir == TRANSFORM_DIR_FORWARD) |
| 190 | { |
| 191 | // If forward does not exist, inverse the inverse transform. |
| 192 | if (!forwardTransform) |
| 193 | { |
| 194 | auto transform = inverseTransform->createEditableCopy(); |
| 195 | const auto dir = GetInverseTransformDirection(transform->getDirection()); |
| 196 | transform->setDirection(dir); |
| 197 | return transform; |
| 198 | } |
| 199 | else |
| 200 | { |
| 201 | return forwardTransform; |
| 202 | } |
| 203 | } |
| 204 | else if (dir == TRANSFORM_DIR_INVERSE) |
| 205 | { |
| 206 | if (!inverseTransform) |
| 207 | { |
| 208 | // Inverse the forward transform. |
| 209 | auto transform = forwardTransform->createEditableCopy(); |
| 210 | const auto dir = GetInverseTransformDirection(transform->getDirection()); |
| 211 | transform->setDirection(dir); |
| 212 | return transform; |
| 213 | } |
| 214 | else |
| 215 | { |
| 216 | return inverseTransform; |
| 217 | } |
| 218 | } |
| 219 | } |
| 220 | throw Exception("Named transform: Unspecified TransformDirection."); |
| 221 | } |
| 222 | |
| 223 | void NamedTransformImpl::setTransform(const ConstTransformRcPtr & transform, TransformDirection dir) |
| 224 | { |