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Diffstat (limited to 'src/pdf/qpdfsearchmodel.cpp')
-rw-r--r-- | src/pdf/qpdfsearchmodel.cpp | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/pdf/qpdfsearchmodel.cpp b/src/pdf/qpdfsearchmodel.cpp new file mode 100644 index 000000000..9010d76d3 --- /dev/null +++ b/src/pdf/qpdfsearchmodel.cpp @@ -0,0 +1,115 @@ +/**************************************************************************** +** +** Copyright (C) 2020 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the QtPDF module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL3$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPLv3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or later as published by the Free +** Software Foundation and appearing in the file LICENSE.GPL included in +** the packaging of this file. Please review the following information to +** ensure the GNU General Public License version 2.0 requirements will be +** met: http://www.gnu.org/licenses/gpl-2.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qpdfsearchmodel.h" +#include "qpdfsearchmodel_p.h" +#include "qpdfdocument_p.h" + +#include "third_party/pdfium/public/fpdf_doc.h" +#include "third_party/pdfium/public/fpdf_text.h" + +#include <QLoggingCategory> + +QT_BEGIN_NAMESPACE + +Q_LOGGING_CATEGORY(qLcS, "qt.pdf.search") + +QPdfSearchModel::QPdfSearchModel(QObject *parent) + : QObject(parent), + d(new QPdfSearchModelPrivate()) +{ +} + +QPdfSearchModel::~QPdfSearchModel() {} + +QVector<QRectF> QPdfSearchModel::matches(int page, const QString &searchString) +{ + const QPdfMutexLocker lock; + FPDF_PAGE pdfPage = FPDF_LoadPage(d->document->d->doc, page); + if (!pdfPage) { + qWarning() << "failed to load page" << page; + return {}; + } + double pageHeight = FPDF_GetPageHeight(pdfPage); + FPDF_TEXTPAGE textPage = FPDFText_LoadPage(pdfPage); + if (!textPage) { + qWarning() << "failed to load text of page" << page; + FPDF_ClosePage(pdfPage); + return {}; + } + QVector<QRectF> ret; + if (searchString.isEmpty()) + return ret; + FPDF_SCHHANDLE sh = FPDFText_FindStart(textPage, searchString.utf16(), 0, 0); + while (FPDFText_FindNext(sh)) { + int idx = FPDFText_GetSchResultIndex(sh); + int count = FPDFText_GetSchCount(sh); + int rectCount = FPDFText_CountRects(textPage, idx, count); + qCDebug(qLcS) << searchString << ": matched" << count << "chars @" << idx << "across" << rectCount << "rects"; + for (int r = 0; r < rectCount; ++r) { + double left, top, right, bottom; + FPDFText_GetRect(textPage, r, &left, &top, &right, &bottom); + ret << QRectF(left, pageHeight - top, right - left, top - bottom); + qCDebug(qLcS) << ret.last(); + } + } + FPDFText_FindClose(sh); + FPDFText_ClosePage(textPage); + FPDF_ClosePage(pdfPage); + + return ret; +} + +QPdfDocument *QPdfSearchModel::document() const +{ + return d->document; +} + +void QPdfSearchModel::setDocument(QPdfDocument *document) +{ + if (d->document == document) + return; + d->document = document; + emit documentChanged(); +} + +QPdfSearchModelPrivate::QPdfSearchModelPrivate() +{ +} + +QT_END_NAMESPACE + +#include "moc_qpdfsearchmodel.cpp" |