Penyorotan Anotasi PDF menggunakan C++

Anotasi Markup Teks harus ditampilkan dalam teks dokumen sebagai sorotan, garis bawah, coretan, atau garis bawah bergelombang. Ketika dibuka, mereka harus menampilkan jendela pop-up yang berisi teks dari catatan yang sesuai.

Anda dapat mengedit properti Anotasi Markup Teks dalam PDF dengan menggunakan jendela Properti yang disediakan dalam kontrol Penampil PDF. Anda dapat mengubah warna, opasitas, penulis, dan tema dari Anotasi Markup Teks.

Anda dapat mendapatkan atau mengatur pengaturan anotasi sorotan dengan menggunakan properti highlightSettings. The highlightSettings property digunakan untuk mengatur properti warna, opasitas, penulis, tema, tanggal modifikasi, dan isLocked untuk anotasi highlight.

Juga memungkinkan untuk mendapatkan atau mengatur pengaturan anotasi garis tengah menggunakan properti strikethroughSettings. Properti strikethroughSettings digunakan untuk mengatur properti warna, opasitas, penulis, tema, tanggal modifikasi, dan isLocked dari anotasi garis tengah.

Fitur berikutnya adalah kemampuan untuk mendapatkan atau mengatur pengaturan untuk anotasi garis bawah menggunakan properti underlineSettings. Properti underlineSettings digunakan untuk mengatur properti warna, opasitas, penulis, tema, tanggal modifikasi, dan isLocked untuk anotasi garis bawah.

Menambahkan Anotasi Penanda Teks

Untuk menambahkan Anotasi Penanda Teks ke dokumen PDF, kita perlu melakukan tindakan berikut:

Memuat file PDF - objek Document baru.
Buat anotasi:
- HighlightAnnotation dan atur parameter (judul, warna).

StrikeOutAnnotation dan atur parameter (judul, warna).
SquigglyAnnotation dan atur parameter (judul, warna).
UnderlineAnnotation dan atur parameter (judul, warna).

Setelah itu kita harus menambahkan semua anotasi ke halaman.


```cpp
using namespace System;
using namespace Aspose::Pdf;
using namespace Aspose::Pdf::Text;

void TextMarkupAnnotations::AddTextMarkupAnnotation()
{
    String _dataDir("C:\\Samples\\");

    try
    {
        // Load the PDF file
        auto document = MakeObject<Document>(_dataDir + u"sample.pdf");
        auto tfa = MakeObject<Aspose::Pdf::Text::TextFragmentAbsorber>(u"PDF");
        tfa->Visit(document->get_Pages()->idx_get(1));

        //Create annotations
        auto highlightAnnotation = MakeObject<Aspose::Pdf::Annotations::HighlightAnnotation>(
        document->get_Pages()->idx_get(1),
        tfa->get_TextFragments()->idx_get(1)->get_Rectangle());
        highlightAnnotation->set_Title(u"Aspose User");
        highlightAnnotation->set_Color(Color::get_LightGreen());

        auto strikeOutAnnotation = MakeObject<Aspose::Pdf::Annotations::StrikeOutAnnotation>(
        document->get_Pages()->idx_get(1),
        tfa->get_TextFragments()->idx_get(2)->get_Rectangle());
        strikeOutAnnotation->set_Title(u"Aspose User");
        strikeOutAnnotation->set_Color(Color::get_Blue());

        auto squigglyAnnotation = MakeObject<Aspose::Pdf::Annotations::SquigglyAnnotation>(
        document->get_Pages()->idx_get(1),
        tfa->get_TextFragments()->idx_get(3)->get_Rectangle());
        squigglyAnnotation->set_Title(u"Aspose User");
        squigglyAnnotation->set_Color(Color::get_Blue());

        auto underlineAnnotation = MakeObject<Aspose::Pdf::Annotations::UnderlineAnnotation>(
        document->get_Pages()->idx_get(1),
        tfa->get_TextFragments()->idx_get(4)->get_Rectangle());
        underlineAnnotation->set_Title(u"Aspose User");
        underlineAnnotation->set_Color(Color::get_Blue());

        // Add annotation to the page
        document->get_Pages()->idx_get(1)->get_Annotations()->Add(highlightAnnotation);
        document->get_Pages()->idx_get(1)->get_Annotations()->Add(squigglyAnnotation);
        document->get_Pages()->idx_get(1)->get_Annotations()->Add(strikeOutAnnotation);
        document->get_Pages()->idx_get(1)->get_Annotations()->Add(underlineAnnotation);
        document->Save(_dataDir + u"sample_mod.pdf");
    }
    catch (Exception ex)
    {
        Console::WriteLine(ex->get_Message());
    }
}

Jika Anda ingin menyoroti fragmen multi-baris, Anda harus menggunakan contoh lanjutan:

/// <summary>
/// Contoh lanjutan untuk Anda ingin menyoroti fragmen multi-baris
/// </summary>

System::SmartPtr<Aspose::Pdf::Annotations::HighlightAnnotation> HighLightTextFragment(
    System::SmartPtr<Aspose::Pdf::Page> page,
    System::SmartPtr<TextFragment> textFragment,
    System::SharedPtr<Color> color);

void TextMarkupAnnotations::AddHighlightAnnotationAdvanced()
{
    String _dataDir("C:\\Samples\\");

    auto document = MakeObject<Document>(_dataDir + u"sample_mod.pdf");
    auto page = document->get_Pages()->idx_get(1);

    auto tfa = MakeObject<TextFragmentAbsorber>(
        u"Adobe\\W+Acrobat\\W+Reader",
        MakeObject<Aspose::Pdf::Text::TextSearchOptions>(true));

    tfa->Visit(page);

    for (auto textFragment : tfa->get_TextFragments())
    {
        auto highlightAnnotation = HighLightTextFragment(page, textFragment, Color::get_Yellow());
        page->get_Annotations()->Add(highlightAnnotation);
    }
    document->Save(_dataDir + u"sample_mod.pdf");
}


System::SmartPtr<Aspose::Pdf::Annotations::HighlightAnnotation> HighLightTextFragment(
    System::SmartPtr<Aspose::Pdf::Page> page,
    System::SmartPtr<TextFragment> textFragment,
    System::SharedPtr<Color> color)
{
    if (textFragment->get_Segments()->get_Count() == 1)
    {
        auto ha = MakeObject<Aspose::Pdf::Annotations::HighlightAnnotation>
        (page, textFragment->get_Segments()->idx_get(1)->get_Rectangle());
        ha->set_Title(u"Pengguna Aspose");
        ha->set_Color(color);

        ha->set_Modified(DateTime::get_Now());

        auto quadPoints = MakeArray<System::SharedPtr<Point>>(4);

        quadPoints[0] = MakeObject<Point>(textFragment->get_Segments()->idx_get(1)->get_Rectangle()->get_LLX(),
        textFragment->get_Segments()->idx_get(1)->get_Rectangle()->get_URY());
        quadPoints[1] = MakeObject<Point>(textFragment->get_Segments()->idx_get(1)->get_Rectangle()->get_URX(),
        textFragment->get_Segments()->idx_get(1)->get_Rectangle()->get_URY());
        quadPoints[2] = MakeObject<Point>(textFragment->get_Segments()->idx_get(1)->get_Rectangle()->get_LLX(),
        textFragment->get_Segments()->idx_get(1)->get_Rectangle()->get_LLY());
        quadPoints[3] = MakeObject<Point>(textFragment->get_Segments()->idx_get(1)->get_Rectangle()->get_URX(),
        textFragment->get_Segments()->idx_get(1)->get_Rectangle()->get_LLY());
        ha->set_QuadPoints(quadPoints);
        return ha;
    }

    auto offset = 0;
    auto quadPoints = MakeArray<System::SharedPtr<Point>>(textFragment->get_Segments()->get_Count() * 4);

    for (auto segment : textFragment->get_Segments())
    {
        quadPoints[offset + 0] = MakeObject<Point>(segment->get_Rectangle()->get_LLX(), segment->get_Rectangle()->get_URY());
        quadPoints[offset + 1] = MakeObject<Point>(segment->get_Rectangle()->get_URX(), segment->get_Rectangle()->get_URY());
        quadPoints[offset + 2] = MakeObject<Point>(segment->get_Rectangle()->get_LLX(), segment->get_Rectangle()->get_LLY());
        quadPoints[offset + 3] = MakeObject<Point>(segment->get_Rectangle()->get_URX(), segment->get_Rectangle()->get_LLY());
        offset += 4;
    }

    double llx = quadPoints[0]->get_X();
    double lly = quadPoints[0]->get_Y();
    double urx = quadPoints[0]->get_X();
    double ury = quadPoints[0]->get_Y();
    for (auto &pt : quadPoints) {
        if (llx > pt->get_X())
        llx = pt->get_X();
        if (lly > pt->get_Y())
        lly = pt->get_Y();
        if (urx < pt->get_X())
        urx = pt->get_X();
        if (ury < pt->get_Y())
        ury = pt->get_Y();
    }

    auto ha = MakeObject<Aspose::Pdf::Annotations::HighlightAnnotation>
        (page, textFragment->get_Segments()->idx_get(1)->get_Rectangle());
    ha->set_Title(u"Pengguna Aspose");
    ha->set_Color(color);

    ha->set_Modified(DateTime::get_Now());

    ha->set_QuadPoints(quadPoints);
    return ha;
}


/// <summary>
/// Cara mendapatkan Teks yang Disorot
/// </summary>
void TextMarkupAnnotations::GetHighlightedText()
{
    String _dataDir("C:\\Samples\\");

    // Memuat file PDF
    auto document = MakeObject<Document>(_dataDir + u"sample_mod.pdf");
    auto page = document->get_Pages()->idx_get(1);
    auto annotationSelector = MakeObject<Aspose::Pdf::Annotations::AnnotationSelector>(
        MakeObject<Aspose::Pdf::Annotations::HighlightAnnotation>(page, Rectangle::get_Trivial()));

    for (auto ta : annotationSelector->get_Selected())
    {
        auto ha = System::DynamicCast<Aspose::Pdf::Annotations::HighlightAnnotation>(ta);
        Console::WriteLine(ha->GetMarkedText());
    }
}

Dapatkan Anotasi Markup Teks

Silakan coba gunakan potongan kode berikut untuk Mendapatkan Anotasi Markup Teks dari dokumen PDF.

void TextMarkupAnnotations::GetTextMarkupAnnotation()
{
    String _dataDir("C:\\Samples\\");

    // Muat file PDF
    auto document = MakeObject<Document>(_dataDir + u"sample_mod.pdf");
    auto page = document->get_Pages()->idx_get(1);

    auto annotationSelector = MakeObject<Aspose::Pdf::Annotations::AnnotationSelector>(
        MakeObject<Aspose::Pdf::Annotations::HighlightAnnotation>(page, Rectangle::get_Trivial()));

    for (auto ta : annotationSelector->get_Selected())
    {
        Console::WriteLine(u"{0} {1}", ta->get_AnnotationType(), ta->get_Rect());
    }
}

Hapus Anotasi Markup Teks

Potongan kode berikut menunjukkan cara Menghapus Anotasi Markup Teks dari file PDF.

void TextMarkupAnnotations::DeleteTextMarkupAnnotation() {

    String _dataDir("C:\\Samples\\");

    // Muat file PDF
    auto document = MakeObject<Document>(_dataDir + u"sample_mod.pdf");
    auto page = document->get_Pages()->idx_get(1);

    auto annotationSelector1 = MakeObject<Aspose::Pdf::Annotations::AnnotationSelector>(
        MakeObject<Aspose::Pdf::Annotations::HighlightAnnotation>(page, Rectangle::get_Trivial()));
    page->Accept(annotationSelector1);
    auto annotationSelector2 = MakeObject<Aspose::Pdf::Annotations::AnnotationSelector>(
        MakeObject<Aspose::Pdf::Annotations::SquigglyAnnotation>(page, Rectangle::get_Trivial()));
    page->Accept(annotationSelector2);

    for (auto ta : annotationSelector1->get_Selected()) {
        page->get_Annotations()->Delete(ta);
    }
    for (auto ta : annotationSelector2->get_Selected()) {
        page->get_Annotations()->Delete(ta);
    }
    document->Save(_dataDir + u"sample_del.pdf");
}

PDF Multimedia Annotation menggunakan C++