| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "SkPDFFormXObject.h" |
| |
| #include "SkMatrix.h" |
| #include "SkPDFCatalog.h" |
| #include "SkPDFDevice.h" |
| #include "SkPDFUtils.h" |
| #include "SkStream.h" |
| #include "SkTypes.h" |
| |
| SkPDFFormXObject::SkPDFFormXObject(SkPDFDevice* device) { |
| // We don't want to keep around device because we'd have two copies |
| // of content, so reference or copy everything we need (content and |
| // resources). |
| device->getResources(&fResources); |
| |
| SkRefPtr<SkStream> content = device->content(); |
| content->unref(); // SkRefPtr and content() both took a reference. |
| fStream = new SkPDFStream(content.get()); |
| fStream->unref(); // SkRefPtr and new both took a reference. |
| |
| insert("Type", new SkPDFName("XObject"))->unref(); |
| insert("Subtype", new SkPDFName("Form"))->unref(); |
| insert("BBox", device->getMediaBox().get()); |
| insert("Resources", device->getResourceDict().get()); |
| |
| // We invert the initial transform and apply that to the xobject so that |
| // it doesn't get applied twice. We can't just undo it because it's |
| // embedded in things like shaders and images. |
| if (!device->initialTransform().isIdentity()) { |
| SkMatrix inverse; |
| inverse.reset(); |
| device->initialTransform().invert(&inverse); |
| insert("Matrix", SkPDFUtils::MatrixToArray(inverse))->unref(); |
| } |
| |
| // Right now SkPDFFormXObject is only used for saveLayer, which implies |
| // isolated blending. Do this conditionally if that changes. |
| SkRefPtr<SkPDFDict> group = new SkPDFDict("Group"); |
| group->unref(); // SkRefPtr and new both took a reference. |
| group->insert("S", new SkPDFName("Transparency"))->unref(); |
| group->insert("I", new SkPDFBool(true))->unref(); // Isolated. |
| insert("Group", group.get()); |
| } |
| |
| SkPDFFormXObject::~SkPDFFormXObject() { |
| fResources.unrefAll(); |
| } |
| |
| void SkPDFFormXObject::emitObject(SkWStream* stream, SkPDFCatalog* catalog, |
| bool indirect) { |
| if (indirect) |
| return emitIndirectObject(stream, catalog); |
| |
| fStream->emitObject(stream, catalog, indirect); |
| } |
| |
| size_t SkPDFFormXObject::getOutputSize(SkPDFCatalog* catalog, bool indirect) { |
| if (indirect) |
| return getIndirectOutputSize(catalog); |
| |
| return fStream->getOutputSize(catalog, indirect); |
| } |
| |
| void SkPDFFormXObject::getResources(SkTDArray<SkPDFObject*>* resourceList) { |
| resourceList->setReserve(resourceList->count() + fResources.count()); |
| for (int i = 0; i < fResources.count(); i++) { |
| resourceList->push(fResources[i]); |
| fResources[i]->ref(); |
| } |
| } |
| |
| SkPDFObject* SkPDFFormXObject::insert(SkPDFName* key, SkPDFObject* value) { |
| return fStream->insert(key, value); |
| } |
| |
| SkPDFObject* SkPDFFormXObject::insert(const char key[], SkPDFObject* value) { |
| return fStream->insert(key, value); |
| } |