From 9d6b4d11424cdcd6c572cdcc50b3b790b6e673c0 Mon Sep 17 00:00:00 2001
From: Jordi Pujol Foyo <jordi@vikingsoftware.com>
Date: Fri, 13 Dec 2019 14:27:11 +0100
Subject: New features for QPdfWriter

Added new API setDocumentXmpMetadata/documentXmpMetadata and
addFileAttachment

[ChangeLog][QtGui][QPdfWriter] New API to provide external document XMP
metadata and attach files to PDF.

Fixes: QTBUG-78651
Fixes: QTBUG-78764
Change-Id: Ic0b37e8d12899f907001db469080594c14c87655
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
---
 src/gui/painting/qpdf_p.h | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

(limited to 'src/gui/painting/qpdf_p.h')

diff --git a/src/gui/painting/qpdf_p.h b/src/gui/painting/qpdf_p.h
index 89e549614a..57d70db442 100644
--- a/src/gui/painting/qpdf_p.h
+++ b/src/gui/painting/qpdf_p.h
@@ -187,6 +187,11 @@ public:
 
     void setPdfVersion(PdfVersion version);
 
+    void setDocumentXmpMetadata(const QByteArray &xmpMetadata);
+    QByteArray documentXmpMetadata() const;
+
+    void addFileAttachment(const QString &fileName, const QByteArray &data, const QString &mimeType);
+
     // reimplementations QPaintEngine
     bool begin(QPaintDevice *pdev) override;
     bool end() override;
@@ -297,9 +302,10 @@ private:
     int createShadingFunction(const QGradient *gradient, int from, int to, bool reflect, bool alpha);
 
     void writeInfo();
-    int writeXmpMetaData();
+    int writeXmpDcumentMetaData();
     int writeOutputIntent();
     void writePageRoot();
+    void writeAttachmentRoot();
     void writeFonts();
     void embedFont(QFontSubset *font);
     qreal calcUserUnit() const;
@@ -324,11 +330,22 @@ private:
     inline int writeCompressed(const QByteArray &data) { return writeCompressed(data.constData(), data.length()); }
     int writeCompressed(QIODevice *dev);
 
+    struct AttachmentInfo
+    {
+        AttachmentInfo (const QString &fileName, const QByteArray &data, const QString &mimeType)
+            : fileName(fileName), data(data), mimeType(mimeType) {}
+        QString fileName;
+        QByteArray data;
+        QString mimeType;
+    };
+
     // various PDF objects
-    int pageRoot, catalog, info, graphicsState, patternColorSpace;
+    int pageRoot, embeddedfilesRoot, namesRoot, catalog, info, graphicsState, patternColorSpace;
     QVector<uint> pages;
     QHash<qint64, uint> imageCache;
     QHash<QPair<uint, uint>, uint > alphaCache;
+    QVector<AttachmentInfo> fileCache;
+    QByteArray xmpDocumentMetadata;
 };
 
 QT_END_NAMESPACE
-- 
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