85 lines
2.4 KiB
C++
85 lines
2.4 KiB
C++
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/*
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* Copyright 2020 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "tests/Test.h"
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#ifdef SK_SUPPORT_PDF
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#include "include/core/SkCanvas.h"
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#include "include/core/SkFont.h"
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#include "include/core/SkStream.h"
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#include "include/docs/SkPDFDocument.h"
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using PDFTag = SkPDF::StructureElementNode;
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// Test building a tagged PDF where nodes are pruned.
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// Add this to args.gn to output the PDF to a file:
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// extra_cflags = [ "-DSK_PDF_TEST_TAGS_OUTPUT_PATH=\"/tmp/pruning.pdf\"" ]
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DEF_TEST(SkPDF_tagged_pruning, r) {
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REQUIRE_PDF_DOCUMENT(SkPDF_tagged, r);
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#ifdef SK_PDF_TEST_TAGS_OUTPUT_PATH
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SkFILEWStream outputStream(SK_PDF_TEST_TAGS_OUTPUT_PATH);
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#else
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SkDynamicMemoryWStream outputStream;
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#endif
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SkSize pageSize = SkSize::Make(612, 792); // U.S. Letter
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SkPDF::Metadata metadata;
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metadata.fTitle = "Example Tagged PDF";
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metadata.fCreator = "Skia";
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SkTime::DateTime now;
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SkTime::GetDateTime(&now);
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metadata.fCreation = now;
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metadata.fModified = now;
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// The document tag.
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auto root = std::make_unique<PDFTag>();
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root->fNodeId = 1;
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root->fTypeString = "Document";
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root->fLang = "en-US";
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// First paragraph.
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auto p1 = std::make_unique<PDFTag>();
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p1->fNodeId = 2;
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p1->fAdditionalNodeIds = {3, 4};
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p1->fTypeString = "P";
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root->fChildVector.push_back(std::move(p1));
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// Second paragraph.
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auto p2 = std::make_unique<PDFTag>();
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p2->fNodeId = 5;
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p2->fAdditionalNodeIds = {6, 7};
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p2->fTypeString = "P";
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root->fChildVector.push_back(std::move(p2));
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metadata.fStructureElementTreeRoot = root.get();
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sk_sp<SkDocument> document = SkPDF::MakeDocument(
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&outputStream, metadata);
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SkPaint paint;
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paint.setColor(SK_ColorBLACK);
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SkCanvas* canvas =
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document->beginPage(pageSize.width(),
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pageSize.height());
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SkFont font(nullptr, 20);
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SkPDF::SetNodeId(canvas, 3);
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canvas->drawString("First paragraph line 1", 72, 72, font, paint);
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SkPDF::SetNodeId(canvas, 4);
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canvas->drawString("First paragraph line 2", 72, 108, font, paint);
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SkPDF::SetNodeId(canvas, 6);
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canvas->drawString("Second paragraph line 1", 72, 180, font, paint);
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SkPDF::SetNodeId(canvas, 7);
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canvas->drawString("Second paragraph line 2", 72, 216, font, paint);
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document->endPage();
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document->close();
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outputStream.flush();
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}
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#endif
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