AnnotationTest.cpp

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/*
 * Copyright 2011 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
#include "include/core/SkAnnotation.h"
#include "include/core/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkData.h"
#include "include/core/SkDocument.h"
#include "include/core/SkPoint.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkScalar.h"
#include "include/core/SkStream.h"
#include "include/core/SkTypes.h"
#include "include/docs/SkPDFDocument.h"
#include "tests/Test.h"
 
#include <cstddef>
#include <cstring>
 
/** Returns true if data (may contain null characters) contains needle (null
 *  terminated). */
static bool ContainsString(const char* data, size_t dataSize, const char* needle) {
    size_t nSize = strlen(needle);
    for (size_t i = 0; i < dataSize - nSize; i++) {
        if (strncmp(&data[i], needle, nSize) == 0) {
            return true;
        }
    }
    return false;
}
 
DEF_TEST(Annotation_NoDraw, reporter) {
    SkBitmap bm;
    bm.allocN32Pixels(10, 10);
    bm.eraseColor(SK_ColorTRANSPARENT);
 
    SkCanvas canvas(bm);
    SkRect r = SkRect::MakeWH(SkIntToScalar(10), SkIntToScalar(10));
 
    sk_sp<SkData> data(SkData::MakeWithCString("http://www.gooogle.com"));
 
    REPORTER_ASSERT(reporter, 0 == *bm.getAddr32(0, 0));
    SkAnnotateRectWithURL(&canvas, r, data.get());
    REPORTER_ASSERT(reporter, 0 == *bm.getAddr32(0, 0));
}
 
DEF_TEST(Annotation_PdfLink, reporter) {
    REQUIRE_PDF_DOCUMENT(Annotation_PdfLink, reporter);
    SkDynamicMemoryWStream outStream;
    auto doc = SkPDF::MakeDocument(&outStream);
    SkCanvas* canvas = doc->beginPage(612.0f, 792.0f);
    REPORTER_ASSERT(reporter, canvas);
 
    SkRect r = SkRect::MakeXYWH(SkIntToScalar(72), SkIntToScalar(72),
                                SkIntToScalar(288), SkIntToScalar(72));
    sk_sp<SkData> data(SkData::MakeWithCString("http://www.gooogle.com"));
    SkAnnotateRectWithURL(canvas, r, data.get());
 
    doc->close();
    sk_sp<SkData> out = outStream.detachAsData();
    const char* rawOutput = (const char*)out->data();
 
    REPORTER_ASSERT(reporter, ContainsString(rawOutput, out->size(), "/Annots "));
}
 
DEF_TEST(Annotation_PdfDefineNamedDestination, reporter) {
    REQUIRE_PDF_DOCUMENT(Annotation_PdfNamedDestination, reporter);
    SkDynamicMemoryWStream outStream;
    auto doc = SkPDF::MakeDocument(&outStream);
    SkCanvas* canvas = doc->beginPage(612.0f, 792.0f);
    REPORTER_ASSERT(reporter, canvas);
 
    SkPoint p = SkPoint::Make(SkIntToScalar(72), SkIntToScalar(72));
    sk_sp<SkData> data(SkData::MakeWithCString("example"));
    SkAnnotateNamedDestination(canvas, p, data.get());
 
    doc->close();
    sk_sp<SkData> out = outStream.detachAsData();
    const char* rawOutput = (const char*)out->data();
 
    REPORTER_ASSERT(reporter,
        ContainsString(rawOutput, out->size(), "/example "));
}
 
#if defined(SK_XML)
    #include "include/svg/SkSVGCanvas.h"
 
    DEF_TEST(Annotation_SvgLink, reporter) {
        SkDynamicMemoryWStream outStream;
        SkRect bounds = SkRect::MakeIWH(400, 400);
        std::unique_ptr<SkCanvas> canvas = SkSVGCanvas::Make(bounds, &outStream);
 
        SkRect r = SkRect::MakeXYWH(SkIntToScalar(72), SkIntToScalar(72), SkIntToScalar(288),
                                    SkIntToScalar(72));
        sk_sp<SkData> data(SkData::MakeWithCString("http://www.gooogle.com"));
        SkAnnotateRectWithURL(canvas.get(), r, data.get());
 
        sk_sp<SkData> out = outStream.detachAsData();
        const char* rawOutput = (const char*)out->data();
 
        REPORTER_ASSERT(reporter,
            ContainsString(rawOutput, out->size(), "a xlink:href=\"http://www.gooogle.com\""));
    }
 
    DEF_TEST(Annotation_SvgLinkNamedDestination, reporter) {
        SkDynamicMemoryWStream outStream;
        SkRect bounds = SkRect::MakeIWH(400, 400);
        std::unique_ptr<SkCanvas> canvas = SkSVGCanvas::Make(bounds, &outStream);
 
        SkRect r = SkRect::MakeXYWH(SkIntToScalar(72), SkIntToScalar(72), SkIntToScalar(288),
                                    SkIntToScalar(72));
        sk_sp<SkData> data(SkData::MakeWithCString("http://www.gooogle.com/#NamedDestination"));
        SkAnnotateLinkToDestination(canvas.get(), r, data.get());
 
        sk_sp<SkData> out = outStream.detachAsData();
        const char* rawOutput = (const char*)out->data();
 
        REPORTER_ASSERT(reporter,
            ContainsString(rawOutput, out->size(),
                           "a xlink:href=\"http://www.gooogle.com/#NamedDestination\""));
    }
#endif