Add document property support

Use QObject::setProperty() to do so

src/xlsx/xlsxdocprops.cpp

@@ -28,6 +28,7 @@
 #include <QDir>
 #include <QFile>
 #include <QDateTime>
+#include <QVariant>
 namespace QXlsx {
 
 DocProps::DocProps(QObject *parent) :
@@ -83,11 +84,15 @@ void DocProps::saveToXmlFile_App(QIODevice *device)
     writer.writeEndElement();//vt:vector
     writer.writeEndElement();//TitlesOfParts
 
-    writer.writeTextElement(QStringLiteral("Company"), QStringLiteral(""));
+    if (property("manager").isValid())
+        writer.writeTextElement(QStringLiteral("Manager"), property("manager").toString());
+    //Not like "manager", "company" always exists for Excel generated file.
+    writer.writeTextElement(QStringLiteral("Company"), property("company").isValid() ? property("company").toString() : QString());
     writer.writeTextElement(QStringLiteral("LinksUpToDate"), QStringLiteral("false"));
     writer.writeTextElement(QStringLiteral("SharedDoc"), QStringLiteral("false"));
     writer.writeTextElement(QStringLiteral("HyperlinksChanged"), QStringLiteral("false"));
     writer.writeTextElement(QStringLiteral("AppVersion"), QStringLiteral("12.0000"));
+
     writer.writeEndElement(); //Properties
     writer.writeEndDocument();
 }
@@ -103,12 +108,17 @@ void DocProps::saveToXmlFile_Core(QIODevice *device)
     writer.writeAttribute(QStringLiteral("xmlns:dcterms"), QStringLiteral("http://purl.org/dc/terms/"));
     writer.writeAttribute(QStringLiteral("xmlns:dcmitype"), QStringLiteral("http://purl.org/dc/dcmitype/"));
     writer.writeAttribute(QStringLiteral("xmlns:xsi"), QStringLiteral("http://www.w3.org/2001/XMLSchema-instance"));
-    writer.writeTextElement(QStringLiteral("dc:title"), QStringLiteral(""));
-    writer.writeTextElement(QStringLiteral("dc:subject"), QStringLiteral(""));
-    writer.writeTextElement(QStringLiteral("dc:creator"), QStringLiteral("QXlsxWriter"));
-    writer.writeTextElement(QStringLiteral("cp:keywords"), QStringLiteral(""));
-    writer.writeTextElement(QStringLiteral("dc:description"), QStringLiteral(""));
-    writer.writeTextElement(QStringLiteral("cp:lastModifiedBy"), QStringLiteral(""));
+    if (property("title").isValid())
+        writer.writeTextElement(QStringLiteral("dc:title"), property("title").toString());
+    if (property("subject").isValid())
+        writer.writeTextElement(QStringLiteral("dc:subject"), property("subject").toString());
+    writer.writeTextElement(QStringLiteral("dc:creator"), property("creator").isValid() ? property("creator").toString() : QStringLiteral("Qt Xlsx Library"));
+
+    if (property("keywords").isValid())
+        writer.writeTextElement(QStringLiteral("cp:keywords"), property("keywords").toString());
+    if (property("description").isValid())
+        writer.writeTextElement(QStringLiteral("dc:description"), property("description").toString());
+    writer.writeTextElement(QStringLiteral("cp:lastModifiedBy"), property("creator").isValid() ? property("creator").toString() : QStringLiteral("Qt Xlsx Library"));
 
     writer.writeStartElement(QStringLiteral("dcterms:created"));
     writer.writeAttribute(QStringLiteral("xsi:type"), QStringLiteral("dcterms:W3CDTF"));
@@ -120,8 +130,10 @@ void DocProps::saveToXmlFile_Core(QIODevice *device)
     writer.writeCharacters(QDateTime::currentDateTime().toString(Qt::ISODate));
     writer.writeEndElement();//dcterms:created
 
-    writer.writeTextElement(QStringLiteral("cp:category"), QStringLiteral(""));
-    writer.writeTextElement(QStringLiteral("cp:contentStatus"), QStringLiteral(""));
+    if (property("category").isValid())
+        writer.writeTextElement(QStringLiteral("cp:category"), property("category").toString());
+    if (property("status").isValid())
+        writer.writeTextElement(QStringLiteral("cp:contentStatus"), property("status").toString());
     writer.writeEndElement(); //cp:coreProperties
     writer.writeEndDocument();
 }

src/xlsx/xlsxpackage.cpp

@@ -170,6 +170,9 @@ void Package::writeDocPropsFiles(ZipWriter &zipWriter)
 {
     DocProps props;
 
+    foreach (QByteArray name, m_workbook->dynamicPropertyNames())
+        props.setProperty(name.data(), m_workbook->property(name.data()));
+
     if (m_worksheet_count)
         props.addHeadingPair(QStringLiteral("Worksheets"), m_worksheet_count);
     if (m_chartsheet_count)

src/xlsx/xlsxworkbook.cpp

@@ -51,6 +51,31 @@ WorkbookPrivate::WorkbookPrivate(Workbook *q) :
     table_count = 0;
 }
 
+/*!
+    \fn void Workbook::setProperty(const char *key, const QString &value)
+
+    Set the document properties such as Title, Author etc.
+
+    The method can be used to set the document properties of the Excel
+    file created by Qt Xlsx. These properties are visible when you use the
+    Office Button -> Prepare -> Properties option in Excel and are also
+    available to external applications that read or index windows files.
+
+    The properties \a key that can be set are:
+
+    \list
+    \li title
+    \li subject
+    \li creator
+    \li manager
+    \li company
+    \li category
+    \li keywords
+    \li description
+    \li status
+    \endlist
+*/
+
 Workbook::Workbook(QObject *parent) :
     QObject(parent), d_ptr(new WorkbookPrivate(this))
 {

src/xlsx/xlsxworkbook.h

@@ -61,6 +61,10 @@ public:
     bool isStringsToNumbersEnabled() const;
     void setStringsToNumbersEnabled(bool enable=true);
 
+#ifdef Q_QDOC
+    bool setProperty(const char *key, const QString &value);
+#endif
+
     bool save(const QString &name);
 
 private: