Don't lost hyperlinks when edit an exist xlsx file

examples/xlsx/hyperlinks/hyperlinks.pro

@@ -0,0 +1,9 @@
+TARGET = hyperlinks
+
+#include(../../../src/xlsx/qtxlsx.pri)
+QT+=xlsx
+
+CONFIG   += console
+CONFIG   -= app_bundle
+
+SOURCES += main.cpp

examples/xlsx/hyperlinks/main.cpp

@@ -0,0 +1,25 @@
+#include <QtCore>
+#include "xlsxdocument.h"
+
+int main()
+{
+    //![0]
+    QXlsx::Document xlsx;
+    //![0]
+
+    //![1]
+    xlsx.write("A1", "http://qt-project.org");
+    xlsx.write("A2", "http://qt-project.org/wiki#0f68b904e33d9ac04605aecc958bcf52");
+    xlsx.write("A3", "mailto:info@qt-project.org");
+    xlsx.write("A4", "file:///C:/User/test/abc.txt");
+    //![1]
+
+    //![2]
+    xlsx.save();
+    //![2]
+
+    QXlsx::Document xlsx2("Book1.xlsx");
+    xlsx2.saveAs("Book2.xlsx");
+
+    return 0;
+}

examples/xlsx/xlsx.pro

@@ -13,5 +13,6 @@ SUBDIRS = hello \
     richtext \
     conditionalformatting \
     worksheetoperations \
+    hyperlinks \
     demo
 

src/xlsx/xlsxworksheet.cpp

@@ -945,7 +945,7 @@ int Worksheet::writeHyperlink(const QString &row_column, const QUrl &url, const
 }
 
 /*!
-    Write a QUrl \a value to the cell (\a row, \a column) with the \a format
+    Write a QUrl \a url to the cell (\a row, \a column) with the given \a format
  */
 int Worksheet::writeHyperlink(int row, int column, const QUrl &url, const Format &format, const QString &display, const QString &tip)
 {
@@ -993,7 +993,7 @@ int Worksheet::writeHyperlink(int row, int column, const QUrl &url, const Format
     d->cellTable[row][column] = QSharedPointer<Cell>(new Cell(displayString, Cell::String, fmt, this));
 
     //Store the hyperlink data in a separate table
-    d->urlTable[row][column] = new XlsxHyperlinkData(XlsxHyperlinkData::External, urlString, locationString, tip);
+    d->urlTable[row][column] = QSharedPointer<XlsxHyperlinkData>(new XlsxHyperlinkData(XlsxHyperlinkData::External, urlString, locationString, QString(), tip));
 
     return error;
 }
@@ -1390,36 +1390,31 @@ void WorksheetPrivate::saveXmlHyperlinks(QXmlStreamWriter &writer) const
         return;
 
     writer.writeStartElement(QStringLiteral("hyperlinks"));
-    QMapIterator<int, QMap<int, XlsxHyperlinkData *> > it(urlTable);
+    QMapIterator<int, QMap<int, QSharedPointer<XlsxHyperlinkData> > > it(urlTable);
     while (it.hasNext()) {
         it.next();
         int row = it.key();
-        QMapIterator <int, XlsxHyperlinkData *> it2(it.value());
+        QMapIterator <int, QSharedPointer<XlsxHyperlinkData> > it2(it.value());
         while (it2.hasNext()) {
             it2.next();
             int col = it2.key();
-            XlsxHyperlinkData *data = it2.value();
+            QSharedPointer<XlsxHyperlinkData> data = it2.value();
             QString ref = xl_rowcol_to_cell(row, col);
             writer.writeEmptyElement(QStringLiteral("hyperlink"));
             writer.writeAttribute(QStringLiteral("ref"), ref);
             if (data->linkType == XlsxHyperlinkData::External) {
-
                 //Update relationships
-                relationships.addWorksheetRelationship(QStringLiteral("/hyperlink"), data->url, QStringLiteral("External"));
+                relationships.addWorksheetRelationship(QStringLiteral("/hyperlink"), data->target, QStringLiteral("External"));
 
                 writer.writeAttribute(QStringLiteral("r:id"), QStringLiteral("rId%1").arg(relationships.count()));
+            }
+
             if (!data->location.isEmpty())
                 writer.writeAttribute(QStringLiteral("location"), data->location);
             if (!data->display.isEmpty())
-                    writer.writeAttribute(QStringLiteral("display"), data->url);
-                if (!data->tip.isEmpty())
-                    writer.writeAttribute(QStringLiteral("tooltip"), data->tip);
-            } else {
-                writer.writeAttribute(QStringLiteral("location"), data->url);
-                if (!data->tip.isEmpty())
-                    writer.writeAttribute(QStringLiteral("tooltip"), data->tip);
-                writer.writeAttribute(QStringLiteral("display"), data->location);
-            }
+                writer.writeAttribute(QStringLiteral("display"), data->display);
+            if (!data->tooltip.isEmpty())
+                writer.writeAttribute(QStringLiteral("tooltip"), data->tooltip);
         }
     }
 
@@ -2155,6 +2150,36 @@ void WorksheetPrivate::loadXmlSheetViews(QXmlStreamReader &reader)
     }
 }
 
+void WorksheetPrivate::loadXmlHyperlinks(QXmlStreamReader &reader)
+{
+    Q_ASSERT(reader.name() == QLatin1String("hyperlinks"));
+
+    while (!reader.atEnd() && !(reader.name() == QLatin1String("hyperlinks")
+            && reader.tokenType() == QXmlStreamReader::EndElement)) {
+        reader.readNextStartElement();
+        if (reader.tokenType() == QXmlStreamReader::StartElement && reader.name() == QLatin1String("hyperlink")) {
+            QXmlStreamAttributes attrs = reader.attributes();
+            QPoint pos = xl_cell_to_rowcol(attrs.value(QLatin1String("ref")).toString());
+            if (pos.x() != -1) { //Valid
+                QSharedPointer<XlsxHyperlinkData> link(new XlsxHyperlinkData);
+                link->display = attrs.value(QLatin1String("display")).toString();
+                link->tooltip = attrs.value(QLatin1String("tooltip")).toString();
+                link->location = attrs.value(QLatin1String("location")).toString();
+
+                if (attrs.hasAttribute(QLatin1String("r:id"))) {
+                    link->linkType = XlsxHyperlinkData::External;
+                    XlsxRelationship ship = relationships.getRelationshipById(attrs.value(QLatin1String("r:id")).toString());
+                    link->target = ship.target;
+                } else {
+                    link->linkType = XlsxHyperlinkData::Internal;
+                }
+
+                urlTable[pos.x()][pos.y()] = link;
+            }
+        }
+    }
+}
+
 bool Worksheet::loadFromXmlFile(QIODevice *device)
 {
     Q_D(Worksheet);
@@ -2183,6 +2208,8 @@ bool Worksheet::loadFromXmlFile(QIODevice *device)
                 ConditionalFormatting cf;
                 cf.loadFromXml(reader, workbook()->styles());
                 d->conditionalFormattingList.append(cf);
+            } else if (reader.name() == QLatin1String("hyperlinks")) {
+                d->loadXmlHyperlinks(reader);
             }
         }
     }

src/xlsx/xlsxworksheet_p.h

@@ -65,17 +65,18 @@ struct XlsxHyperlinkData
         Internal
     };
 
-    XlsxHyperlinkData(LinkType linkType=External, const QString &url=QString(), const QString &location=QString(), const QString &tip=QString()) :
-        linkType(linkType), url(url), location(location), tip(tip)
+    XlsxHyperlinkData(LinkType linkType=External, const QString &target=QString(), const QString &location=QString()
+            , const QString &display=QString(), const QString &tip=QString())
+        :linkType(linkType), target(target), location(location), display(display), tooltip(tip)
     {
 
     }
 
     LinkType linkType;
-    QString url;
-    QString location; //location string
+    QString target; //For External link
+    QString location;
     QString display;
-    QString tip;
+    QString tooltip;
 };
 
 struct XlsxImageData
@@ -201,6 +202,7 @@ public:
     void loadXmlMergeCells(QXmlStreamReader &reader);
     void loadXmlDataValidations(QXmlStreamReader &reader);
     void loadXmlSheetViews(QXmlStreamReader &reader);
+    void loadXmlHyperlinks(QXmlStreamReader &reader);
 
     SharedStrings *sharedStrings() const;
 
@@ -210,7 +212,7 @@ public:
     Drawing *drawing;
     QMap<int, QMap<int, QSharedPointer<Cell> > > cellTable;
     QMap<int, QMap<int, QString> > comments;
-    QMap<int, QMap<int, XlsxHyperlinkData *> > urlTable;
+    QMap<int, QMap<int, QSharedPointer<XlsxHyperlinkData> > > urlTable;
     QList<CellRange> merges;
     QList<XlsxImageData *> imageList;
     QMap<int, QSharedPointer<XlsxRowInfo> > rowsInfo;