Code refactoring: Improve picture support

Don't lost picture information when edit existing .xlsx files

examples/xlsx/image/main.cpp

@@ -6,12 +6,14 @@ int main(int argc, char** argv)
     QGuiApplication(argc, argv);
 
     QXlsx::Document xlsx;
-
+    QImage image(40, 30, QImage::Format_RGB32);
-    QImage image(400, 300, QImage::Format_RGB32);
     image.fill(Qt::green);
-    xlsx.insertImage(5, 5, image);
+    for (int i=0; i<10; ++i)
+        xlsx.insertImage(10*i, 5, image);
+    xlsx.saveAs("Book1.xlsx");
 
-    xlsx.save();
+    QXlsx::Document xlsx2("Book1.xlsx");
+    xlsx2.saveAs("Book2.xlsx");
 
     return 0;
 }

src/xlsx/qtxlsx.pri

@@ -34,7 +34,9 @@ HEADERS += $$PWD/xlsxdocpropscore_p.h \
     $$PWD/xlsxconditionalformatting.h \
     $$PWD/xlsxconditionalformatting_p.h \
     $$PWD/xlsxcolor_p.h \
-    $$PWD/xlsxnumformatparser_p.h
+    $$PWD/xlsxnumformatparser_p.h \
+    $$PWD/xlsxdrawinganchor_p.h \
+    $$PWD/xlsxmediafile_p.h
 
 SOURCES += $$PWD/xlsxdocpropscore.cpp \
     $$PWD/xlsxdocpropsapp.cpp \
@@ -57,4 +59,6 @@ SOURCES += $$PWD/xlsxdocpropscore.cpp \
     $$PWD/xlsxrichstring.cpp \
     $$PWD/xlsxconditionalformatting.cpp \
     $$PWD/xlsxcolor.cpp \
-    $$PWD/xlsxnumformatparser.cpp
+    $$PWD/xlsxnumformatparser.cpp \
+    $$PWD/xlsxdrawinganchor.cpp \
+    $$PWD/xlsxmediafile.cpp

src/xlsx/xlsxdocument.cpp

@@ -37,12 +37,14 @@
 #include "xlsxutility_p.h"
 #include "xlsxworkbook_p.h"
 #include "xlsxdrawing_p.h"
+#include "xlsxmediafile_p.h"
 #include "xlsxzipreader_p.h"
 #include "xlsxzipwriter_p.h"
 
 #include <QFile>
 #include <QPointF>
 #include <QBuffer>
+#include <QDir>
 
 QT_BEGIN_NAMESPACE_XLSX
 
@@ -189,6 +191,27 @@ bool DocumentPrivate::loadPackage(QIODevice *device)
         if (zipReader.filePaths().contains(rel_path))
             sheet->relationships().loadFromXmlData(zipReader.fileData(rel_path));
         sheet->loadFromXmlData(zipReader.fileData(worksheet_path));
+
+        //load drawing if exists
+        if (!sheet->drawingPath().isEmpty()) {
+            QString drawingPath = QDir::cleanPath(splitPath(worksheet_path)[0] + QLatin1String("/") + sheet->drawingPath());
+            Drawing *drawing = new Drawing(workbook.data());
+            drawing->pathInPackage = drawingPath;
+            QString drawing_rel_path = getRelFilePath(drawingPath);
+            if (zipReader.filePaths().contains(drawing_rel_path))
+                drawing->relationships.loadFromXmlData(zipReader.fileData(drawing_rel_path));
+            drawing->loadFromXmlData(zipReader.fileData(drawingPath));
+            sheet->setDrawing(drawing);
+        }
+    }
+
+    //load media files
+    QList<QSharedPointer<MediaFile> > mediaFileToLoad = workbook->mediaFiles();
+    for (int i=0; i<mediaFileToLoad.size(); ++i) {
+        QSharedPointer<MediaFile> mf = mediaFileToLoad[i];
+        const QString path = mf->fileName();
+        const QString suffix = path.mid(path.lastIndexOf(QLatin1Char('.'))+1);
+        mf->set(zipReader.fileData(path), suffix);
     }
 
     return true;
@@ -206,9 +229,6 @@ bool DocumentPrivate::savePackage(QIODevice *device) const
     DocPropsApp docPropsApp;
     DocPropsCore docPropsCore;
 
-    //: Todo
-    workbook->prepareDrawings();
-
     // save worksheet xml files
     for (int i=0; i<workbook->worksheetCount(); ++i) {
         Worksheet *sheet = workbook->worksheet(i);
@@ -232,19 +252,8 @@ bool DocumentPrivate::savePackage(QIODevice *device) const
 
         Drawing *drawing = workbook->drawings()[i];
         zipWriter.addFile(QStringLiteral("xl/drawings/drawing%1.xml").arg(i+1), drawing->saveToXmlData());
-    }
+        if (!drawing->relationships.isEmpty())
-
+            zipWriter.addFile(QStringLiteral("xl/drawings/_rels/drawing%1.xml.rels").arg(i+1), drawing->relationships.saveToXmlData());
-    for (int i=0; i<workbook->worksheetCount(); ++i) {
-        Worksheet *sheet = workbook->worksheet(i);
-        if (sheet->drawingLinks().size() == 0)
-            continue;
-        Relationships rels;
-
-        typedef QPair<QString, QString> PairType;
-        foreach (PairType pair, sheet->drawingLinks())
-            rels.addDocumentRelationship(pair.first, pair.second);
-
-        zipWriter.addFile(QStringLiteral("xl/drawings/_rels/drawing%1.xml.rels").arg(i+1), rels.saveToXmlData());
     }
 
     // save docProps app/core xml file
@@ -274,17 +283,12 @@ bool DocumentPrivate::savePackage(QIODevice *device) const
     zipWriter.addFile(QStringLiteral("xl/theme/theme1.xml"), workbook->theme()->saveToXmlData());
 
     // save image files
-    if (!workbook->images().isEmpty())
+    for (int i=0; i<workbook->mediaFiles().size(); ++i) {
-        contentTypes.addDefault(QStringLiteral("png"), QStringLiteral("image/png"));
+        QSharedPointer<MediaFile> mf = workbook->mediaFiles()[i];
+        if (!mf->mimeType().isEmpty())
+            contentTypes.addDefault(mf->suffix(), mf->mimeType());
 
-    for (int i=0; i<workbook->images().size(); ++i) {
+        zipWriter.addFile(QStringLiteral("xl/media/image%1.%2").arg(i+1).arg(mf->suffix()), mf->contents());
-        QImage image = workbook->images()[i];
-
-        QByteArray data;
-        QBuffer buffer(&data);
-        buffer.open(QIODevice::WriteOnly);
-        image.save(&buffer, "png");
-        zipWriter.addFile(QStringLiteral("xl/media/image%1.png").arg(i+1), data);
     }
 
     // save root .rels xml file
@@ -388,9 +392,9 @@ QVariant Document::read(int row, int col) const
  * \brief Insert an \a image to current active worksheet to the position \a row, \a column with the given
  * \a xOffset, \a yOffset, \a xScale and \a yScale.
  */
-int Document::insertImage(int row, int column, const QImage &image, double xOffset, double yOffset, double xScale, double yScale)
+int Document::insertImage(int row, int column, const QImage &image, double /*xOffset*/, double /*yOffset*/, double /*xScale*/, double /*yScale*/)
 {
-    return currentWorksheet()->insertImage(row, column, image, QPointF(xOffset, yOffset), xScale, yScale);
+    return currentWorksheet()->insertImage(row, column, image);
 }
 
 /*!

src/xlsx/xlsxdrawing.cpp

@@ -24,6 +24,7 @@
 ****************************************************************************/
 
 #include "xlsxdrawing_p.h"
+#include "xlsxdrawinganchor_p.h"
 
 #include <QXmlStreamWriter>
 #include <QXmlStreamReader>
@@ -31,10 +32,15 @@
 
 namespace QXlsx {
 
-Drawing::Drawing()
+Drawing::Drawing(Workbook *workbook)
+    :workbook(workbook)
 {
-    embedded = false;
+
-    orientation = 0;
+}
+
+Drawing::~Drawing()
+{
+    qDeleteAll(anchors);
 }
 
 QByteArray Drawing::saveToXmlData() const
@@ -48,6 +54,8 @@ QByteArray Drawing::saveToXmlData() const
 
 void Drawing::saveToXmlFile(QIODevice *device) const
 {
+    relationships.clear();
+
     QXmlStreamWriter writer(device);
 
     writer.writeStartDocument(QStringLiteral("1.0"), true);
@@ -55,156 +63,42 @@ void Drawing::saveToXmlFile(QIODevice *device) const
     writer.writeAttribute(QStringLiteral("xmlns:xdr"), QStringLiteral("http://schemas.openxmlformats.org/drawingml/2006/spreadsheetDrawing"));
     writer.writeAttribute(QStringLiteral("xmlns:a"), QStringLiteral("http://schemas.openxmlformats.org/drawingml/2006/main"));
 
-    if (embedded) {
+    foreach (DrawingAnchor *anchor, anchors)
-        int index = 1;
+        anchor->saveToXml(writer);
-        foreach (XlsxDrawingDimensionData *dimension, dimensionList) {
-            writeTwoCellAnchor(writer, index, dimension);
-            index++;
-        }
-    } else {
-        //write the xdr:absoluteAnchor element
-        writeAbsoluteAnchor(writer, 1);
-    }
 
     writer.writeEndElement();//xdr:wsDr
     writer.writeEndDocument();
 }
 
-void Drawing::writeTwoCellAnchor(QXmlStreamWriter &writer, int index, XlsxDrawingDimensionData *data) const
+bool Drawing::loadFromXmlFile(QIODevice *device)
 {
-    writer.writeStartElement(QStringLiteral("xdr:twoCellAnchor"));
+    QXmlStreamReader reader(device);
-    if (data->drawing_type == 2)
+    while (!reader.atEnd()) {
-        writer.writeAttribute(QStringLiteral("editAs"), QStringLiteral("oneCell"));
+        reader.readNextStartElement();
-//    if (shape)
+        if (reader.tokenType() == QXmlStreamReader::StartElement) {
-//        writer.writeAttribute(QStringLiteral("editAs"), );
+            if (reader.name() == QLatin1String("absoluteAnchor")) {
-
+                DrawingAbsoluteAnchor * anchor = new DrawingAbsoluteAnchor(this);
-    writer.writeStartElement(QStringLiteral("xdr:from"));
+                anchor->loadFromXml(reader);
-    writer.writeTextElement(QStringLiteral("xdr:col"), QString::number(data->col_from));
+            } else if (reader.name() == QLatin1String("oneCellAnchor")) {
-    writer.writeTextElement(QStringLiteral("xdr:colOff"), QString::number((int)data->col_from_offset));
+                DrawingOneCellAnchor * anchor = new DrawingOneCellAnchor(this);
-    writer.writeTextElement(QStringLiteral("xdr:row"), QString::number(data->row_from));
+                anchor->loadFromXml(reader);
-    writer.writeTextElement(QStringLiteral("xdr:rowOff"), QString::number((int)data->row_from_offset));
+            } else if (reader.name() == QLatin1String("twoCellAnchor")) {
-    writer.writeEndElement(); //xdr:from
+                DrawingTwoCellAnchor * anchor = new DrawingTwoCellAnchor(this);
-
+                anchor->loadFromXml(reader);
-    writer.writeStartElement(QStringLiteral("xdr:to"));
+            }
-    writer.writeTextElement(QStringLiteral("xdr:col"), QString::number(data->col_to));
+        }
-    writer.writeTextElement(QStringLiteral("xdr:colOff"), QString::number((int)data->col_to_offset));
-    writer.writeTextElement(QStringLiteral("xdr:row"), QString::number(data->row_to));
-    writer.writeTextElement(QStringLiteral("xdr:rowOff"), QString::number((int)data->row_to_offset));
-    writer.writeEndElement(); //xdr:to
-
-    if (data->drawing_type == 1) {
-        //Graphics frame, xdr:graphicFrame
-        writeGraphicFrame(writer, index, data->description);
-    } else if (data->drawing_type == 2) {
-        //Image, xdr:pic
-        writePicture(writer, index, data->col_absolute, data->row_absolute, data->width, data->height, data->description);
-    } else {
-        //Shape, xdr:sp
     }
 
-    writer.writeEmptyElement(QStringLiteral("xdr:clientData"));
+    return true;
-    writer.writeEndElement(); //xdr:twoCellAnchor
 }
 
-void Drawing::writeAbsoluteAnchor(QXmlStreamWriter &writer, int index) const
+bool Drawing::loadFromXmlData(const QByteArray &data)
 {
-    writer.writeStartElement(QStringLiteral("xdr:absoluteAnchor"));
+    QBuffer buffer;
-    if (orientation == 0) {
+    buffer.setData(data);
-        writePos(writer, 0, 0);
+    buffer.open(QIODevice::ReadOnly);
-        writeExt(writer, 9308969, 6078325);
-    } else {
-        writePos(writer, 0, -47625);
-        writeExt(writer, 6162675, 6124575);
-    }
 
-    writeGraphicFrame(writer, index);
+    return loadFromXmlFile(&buffer);
-    writer.writeEmptyElement(QStringLiteral("xdr:clientData"));
-
-    writer.writeEndElement(); //xdr:absoluteAnchor
-}
-
-void Drawing::writePos(QXmlStreamWriter &writer, int x, int y) const
-{
-    writer.writeEmptyElement(QStringLiteral("xdr:pos"));
-    writer.writeAttribute(QStringLiteral("x"), QString::number(x));
-    writer.writeAttribute(QStringLiteral("y"), QString::number(y));
-}
-
-void Drawing::writeExt(QXmlStreamWriter &writer, int cx, int cy) const
-{
-    writer.writeStartElement(QStringLiteral("xdr:ext"));
-    writer.writeAttribute(QStringLiteral("cx"), QString::number(cx));
-    writer.writeAttribute(QStringLiteral("cy"), QString::number(cy));
-}
-
-void Drawing::writeGraphicFrame(QXmlStreamWriter &writer, int index, const QString &name) const
-{
-    writer.writeStartElement(QStringLiteral("xdr:graphicFrame"));
-    writer.writeAttribute(QStringLiteral("macro"), QString());
-
-    writer.writeStartElement(QStringLiteral("xdr:nvGraphicFramePr"));
-    writer.writeEmptyElement(QStringLiteral("xdr:cNvPr"));
-    writer.writeAttribute(QStringLiteral("id"), QString::number(index+1));
-    writer.writeAttribute(QStringLiteral("name"), name.isEmpty() ? QStringLiteral("Chart%1").arg(index): name);
-    if (embedded) {
-        writer.writeEmptyElement(QStringLiteral("xdr:cNvGraphicFramePr"));
-    } else {
-        writer.writeStartElement(QStringLiteral("xdr:cNvGraphicFramePr"));
-        writer.writeEmptyElement(QStringLiteral("a:graphicFrameLocks"));
-        writer.writeAttribute(QStringLiteral("noGrp"), QStringLiteral("1"));
-        writer.writeEndElement(); //xdr:cNvGraphicFramePr
-    }
-
-    writer.writeEndElement();//xdr:nvGraphicFramePr
-    writer.writeEndElement(); //xdr:graphicFrame
-}
-
-void Drawing::writePicture(QXmlStreamWriter &writer, int index, double col_abs, double row_abs, int width, int height, const QString &description) const
-{
-    writer.writeStartElement(QStringLiteral("xdr:pic"));
-
-    writer.writeStartElement(QStringLiteral("xdr:nvPicPr"));
-    writer.writeEmptyElement(QStringLiteral("xdr:cNvPr"));
-    writer.writeAttribute(QStringLiteral("id"), QString::number(index+1));
-    writer.writeAttribute(QStringLiteral("name"), QStringLiteral("Picture%1").arg(index));
-    if (!description.isEmpty())
-        writer.writeAttribute(QStringLiteral("descr"), description);
-
-    writer.writeStartElement(QStringLiteral("xdr:cNvPicPr"));
-    writer.writeEmptyElement(QStringLiteral("a:picLocks"));
-    writer.writeAttribute(QStringLiteral("noChangeAspect"), QStringLiteral("1"));
-    writer.writeEndElement(); //xdr:cNvPicPr
-
-    writer.writeEndElement(); //xdr:nvPicPr
-
-    writer.writeStartElement(QStringLiteral("xdr:blipFill"));
-    writer.writeEmptyElement(QStringLiteral("a:blip"));
-    writer.writeAttribute(QStringLiteral("xmlns:r"), QStringLiteral("http://schemas.openxmlformats.org/officeDocument/2006/relationships"));
-    writer.writeAttribute(QStringLiteral("r:embed"), QStringLiteral("rId%1").arg(index));
-    writer.writeStartElement(QStringLiteral("a:stretch"));
-    writer.writeEmptyElement(QStringLiteral("a:fillRect"));
-    writer.writeEndElement(); //a:stretch
-    writer.writeEndElement();//xdr:blipFill
-
-    writer.writeStartElement(QStringLiteral("xdr:spPr"));
-
-    writer.writeStartElement(QStringLiteral("a:xfrm"));
-    writer.writeEmptyElement(QStringLiteral("a:off"));
-    writer.writeAttribute(QStringLiteral("x"), QString::number((int)col_abs));
-    writer.writeAttribute(QStringLiteral("y"), QString::number((int)row_abs));
-    writer.writeEmptyElement(QStringLiteral("a:ext"));
-    writer.writeAttribute(QStringLiteral("cx"), QString::number(width));
-    writer.writeAttribute(QStringLiteral("cy"), QString::number(height));
-    writer.writeEndElement(); //a:xfrm
-
-    writer.writeStartElement(QStringLiteral("a:prstGeom"));
-    writer.writeAttribute(QStringLiteral("prst"), QStringLiteral("rect"));
-    writer.writeEmptyElement(QStringLiteral("a:avLst"));
-    writer.writeEndElement(); //a:prstGeom
-
-    writer.writeEndElement(); //xdr:spPr
-
-    writer.writeEndElement(); //xdr:pic
 }
 
 } // namespace QXlsx

src/xlsx/xlsxdrawing_p.h

@@ -37,51 +37,36 @@
 // We mean it.
 //
 
+#include "xlsxrelationships_p.h"
+
 #include <QList>
 #include <QString>
+#include <QSharedPointer>
 
 class QIODevice;
 class QXmlStreamWriter;
 
 namespace QXlsx {
 
-struct XlsxDrawingDimensionData
+class DrawingAnchor;
-{
+class Workbook;
-    int drawing_type;
+class MediaFile;
-    int col_from;
-    int row_from;
-    double col_from_offset;
-    double row_from_offset;
-    int col_to;
-    int row_to;
-    double col_to_offset;
-    double row_to_offset;
-    int col_absolute;
-    int row_absolute;
-    int width;
-    int height;
-    QString description;
-    int shape;
-};
 
 class Drawing
 {
 public:
-    Drawing();
+    Drawing(Workbook *workbook);
+    ~Drawing();
     void saveToXmlFile(QIODevice *device) const;
     QByteArray saveToXmlData() const;
+    bool loadFromXmlFile(QIODevice *device);
+    bool loadFromXmlData(const QByteArray &data);
 
-    bool embedded;
+    Workbook *workbook;
-    int orientation;
+    QList<DrawingAnchor *> anchors;
-    QList <XlsxDrawingDimensionData *> dimensionList;
+    mutable Relationships relationships;
 
-private:
+    QString pathInPackage;
-    void writeTwoCellAnchor(QXmlStreamWriter &writer, int index, XlsxDrawingDimensionData *data) const;
-    void writeAbsoluteAnchor(QXmlStreamWriter &writer, int index) const;
-    void writePos(QXmlStreamWriter &writer, int x, int y) const;
-    void writeExt(QXmlStreamWriter &writer, int cx, int cy) const;
-    void writeGraphicFrame(QXmlStreamWriter &writer, int index, const QString &name=QString()) const;
-    void writePicture(QXmlStreamWriter &writer, int index, double col_abs, double row_abs, int width, int height, const QString &description) const;
 };
 
 } // namespace QXlsx

src/xlsx/xlsxdrawinganchor.cpp

@@ -0,0 +1,457 @@
+/****************************************************************************
+** Copyright (c) 2013-2014 Debao Zhang <hello@debao.me>
+** All right reserved.
+**
+** Permission is hereby granted, free of charge, to any person obtaining
+** a copy of this software and associated documentation files (the
+** "Software"), to deal in the Software without restriction, including
+** without limitation the rights to use, copy, modify, merge, publish,
+** distribute, sublicense, and/or sell copies of the Software, and to
+** permit persons to whom the Software is furnished to do so, subject to
+** the following conditions:
+**
+** The above copyright notice and this permission notice shall be
+** included in all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+** NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+** LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+** OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+** WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+**
+****************************************************************************/
+
+#include "xlsxdrawinganchor_p.h"
+#include "xlsxdrawing_p.h"
+#include "xlsxmediafile_p.h"
+#include "xlsxworkbook.h"
+#include "xlsxutility_p.h"
+
+#include <QXmlStreamReader>
+#include <QXmlStreamWriter>
+#include <QBuffer>
+#include <QDir>
+
+namespace QXlsx {
+
+/*
+     The vertices that define the position of a graphical object
+     within the worksheet in pixels.
+
+             +------------+------------+
+             |     A      |      B     |
+       +-----+------------+------------+
+       |     |(x1,y1)     |            |
+       |  1  |(A1)._______|______      |
+       |     |    |              |     |
+       |     |    |              |     |
+       +-----+----|    OBJECT    |-----+
+       |     |    |              |     |
+       |  2  |    |______________.     |
+       |     |            |        (B2)|
+       |     |            |     (x2,y2)|
+       +---- +------------+------------+
+
+     Example of an object that covers some of the area from cell A1 to  B2.
+
+     Based on the width and height of the object we need to calculate 8 vars:
+
+         col_start, row_start, col_end, row_end, x1, y1, x2, y2.
+
+     We also calculate the absolute x and y position of the top left vertex of
+     the object. This is required for images.
+
+     The width and height of the cells that the object occupies can be
+     variable and have to be taken into account.
+*/
+
+//anchor
+
+DrawingAnchor::DrawingAnchor(Drawing *drawing, ObjectType objectType)
+    :m_drawing(drawing), m_objectType(objectType)
+{
+    m_drawing->anchors.append(this);
+    m_id = m_drawing->anchors.size();//must be unique in one drawing{x}.xml file.
+}
+
+DrawingAnchor::~DrawingAnchor()
+{
+
+}
+
+void DrawingAnchor::setObjectPicture(const QImage &img)
+{
+    QByteArray ba;
+    QBuffer buffer(&ba);
+    buffer.open(QIODevice::WriteOnly);
+    img.save(&buffer, "PNG");
+
+    m_pictureFile = QSharedPointer<MediaFile>(new MediaFile(ba, QStringLiteral("png"), QStringLiteral("image/png")));
+    m_drawing->workbook->addMediaFile(m_pictureFile);
+}
+
+QPoint DrawingAnchor::loadXmlPos(QXmlStreamReader &reader)
+{
+    Q_ASSERT(reader.name() == QLatin1String("pos"));
+
+    QPoint pos;
+    QXmlStreamAttributes attrs = reader.attributes();
+    pos.setX(attrs.value(QLatin1String("x")).toString().toInt());
+    pos.setY(attrs.value(QLatin1String("y")).toString().toInt());
+    return pos;
+}
+
+QSize DrawingAnchor::loadXmlExt(QXmlStreamReader &reader)
+{
+    Q_ASSERT(reader.name() == QLatin1String("ext"));
+
+    QSize size;
+    QXmlStreamAttributes attrs = reader.attributes();
+    size.setWidth(attrs.value(QLatin1String("cx")).toString().toInt());
+    size.setHeight(attrs.value(QLatin1String("cy")).toString().toInt());
+    return size;
+}
+
+XlsxMarker DrawingAnchor::loadXmlMarker(QXmlStreamReader &reader, const QString &node)
+{
+    Q_ASSERT(reader.name() == node);
+
+    int col, colOffset, row, rowOffset;
+    while (!reader.atEnd()) {
+        reader.readNextStartElement();
+        if (reader.tokenType() == QXmlStreamReader::StartElement) {
+            if (reader.name() == QLatin1String("col")) {
+                col = reader.readElementText().toInt();
+            } else if (reader.name() == QLatin1String("colOff")) {
+                colOffset = reader.readElementText().toInt();
+            } else if (reader.name() == QLatin1String("row")) {
+                row = reader.readElementText().toInt();
+            } else if (reader.name() == QLatin1String("rowOff")) {
+                rowOffset = reader.readElementText().toInt();
+            }
+        } else if (reader.tokenType() == QXmlStreamReader::EndElement
+                   && reader.name() == node) {
+            break;
+        }
+    }
+
+    return XlsxMarker(row, col, rowOffset, colOffset);
+}
+
+void DrawingAnchor::loadXmlObject(QXmlStreamReader &reader)
+{
+    if (reader.name() == QLatin1String("sp")) {
+        //Shape
+        m_objectType = Shape;
+        loadXmlObjectShape(reader);
+    } else if (reader.name() == QLatin1String("grpSp")) {
+        //Group Shape
+        m_objectType = GroupShape;
+        loadXmlObjectGroupShape(reader);
+    } else if (reader.name() == QLatin1String("graphicFrame")) {
+        //Graphic Frame
+        m_objectType = GraphicFrame;
+        loadXmlObjectGraphicFrame(reader);
+    } else if (reader.name() == QLatin1String("cxnSp")) {
+        //Connection Shape
+        m_objectType = ConnectionShape;
+        loadXmlObjectConnectionShape(reader);
+    } else if (reader.name() == QLatin1String("pic")) {
+        //Picture
+        m_objectType = Picture;
+        loadXmlObjectPicture(reader);
+    }
+}
+
+void DrawingAnchor::loadXmlObjectConnectionShape(QXmlStreamReader &reader)
+{
+    Q_UNUSED(reader)
+}
+
+void DrawingAnchor::loadXmlObjectGraphicFrame(QXmlStreamReader &reader)
+{
+    Q_UNUSED(reader)
+}
+
+void DrawingAnchor::loadXmlObjectGroupShape(QXmlStreamReader &reader)
+{
+    Q_UNUSED(reader)
+}
+
+void DrawingAnchor::loadXmlObjectPicture(QXmlStreamReader &reader)
+{
+    Q_ASSERT(reader.name() == QLatin1String("pic"));
+
+    while (!reader.atEnd()) {
+        reader.readNextStartElement();
+        if (reader.tokenType() == QXmlStreamReader::StartElement) {
+            if (reader.name() == QLatin1String("blip")) {
+                QString rId = reader.attributes().value(QLatin1String("r:embed")).toString();
+                QString name = m_drawing->relationships.getRelationshipById(rId).target;
+                QString path = QDir::cleanPath(splitPath(m_drawing->pathInPackage)[0] + QLatin1String("/") + name);
+
+                bool exist = false;
+                QList<QSharedPointer<MediaFile> > mfs = m_drawing->workbook->mediaFiles();
+                for (int i=0; i<mfs.size(); ++i) {
+                    if (mfs[i]->fileName() == path) {
+                        //already exist
+                        exist = true;
+                        m_pictureFile = mfs[i];
+                    }
+                }
+                if (!exist) {
+                    m_pictureFile = QSharedPointer<MediaFile> (new MediaFile(path));
+                    m_drawing->workbook->addMediaFile(m_pictureFile, true);
+                }
+            }
+        } else if (reader.tokenType() == QXmlStreamReader::EndElement
+                   && reader.name() == QLatin1String("pic")) {
+            break;
+        }
+    }
+
+    return;
+}
+
+void DrawingAnchor::loadXmlObjectShape(QXmlStreamReader &reader)
+{
+    Q_UNUSED(reader)
+}
+
+void DrawingAnchor::saveXmlPos(QXmlStreamWriter &writer, const QPoint &pos) const
+{
+    writer.writeEmptyElement(QStringLiteral("xdr:pos"));
+    writer.writeAttribute(QStringLiteral("x"), QString::number(pos.x()));
+    writer.writeAttribute(QStringLiteral("y"), QString::number(pos.y()));
+}
+
+void DrawingAnchor::saveXmlExt(QXmlStreamWriter &writer, const QSize &ext) const
+{
+    writer.writeStartElement(QStringLiteral("xdr:ext"));
+    writer.writeAttribute(QStringLiteral("cx"), QString::number(ext.width()));
+    writer.writeAttribute(QStringLiteral("cy"), QString::number(ext.height()));
+    writer.writeEndElement(); //xdr:ext
+}
+
+void DrawingAnchor::saveXmlMarker(QXmlStreamWriter &writer, const XlsxMarker &marker, const QString &node) const
+{
+    writer.writeStartElement(node); //xdr:from or xdr:to
+    writer.writeTextElement(QStringLiteral("xdr:col"), QString::number(marker.col()));
+    writer.writeTextElement(QStringLiteral("xdr:colOff"), QString::number(marker.colOff()));
+    writer.writeTextElement(QStringLiteral("xdr:row"), QString::number(marker.row()));
+    writer.writeTextElement(QStringLiteral("xdr:rowOff"), QString::number(marker.rowOff()));
+    writer.writeEndElement();
+}
+
+void DrawingAnchor::saveXmlObject(QXmlStreamWriter &writer) const
+{
+    if (m_objectType == Picture)
+        saveXmlObjectPicture(writer);
+    else if (m_objectType == ConnectionShape)
+        saveXmlObjectConnectionShape(writer);
+    else if (m_objectType == GraphicFrame)
+        saveXmlObjectGraphicFrame(writer);
+    else if (m_objectType == GroupShape)
+        saveXmlObjectGroupShape(writer);
+    else if (m_objectType == Shape)
+        saveXmlObjectShape(writer);
+}
+
+void DrawingAnchor::saveXmlObjectConnectionShape(QXmlStreamWriter &writer) const
+{
+    Q_UNUSED(writer)
+}
+
+void DrawingAnchor::saveXmlObjectGraphicFrame(QXmlStreamWriter &writer) const
+{
+    Q_UNUSED(writer)
+}
+
+void DrawingAnchor::saveXmlObjectGroupShape(QXmlStreamWriter &writer) const
+{
+    Q_UNUSED(writer)
+}
+
+void DrawingAnchor::saveXmlObjectPicture(QXmlStreamWriter &writer) const
+{
+    Q_ASSERT(m_objectType == Picture && !m_pictureFile.isNull());
+
+    writer.writeStartElement(QStringLiteral("xdr:pic"));
+
+    writer.writeStartElement(QStringLiteral("xdr:nvPicPr"));
+    writer.writeEmptyElement(QStringLiteral("xdr:cNvPr"));
+    writer.writeAttribute(QStringLiteral("id"), QString::number(m_id));
+    writer.writeAttribute(QStringLiteral("name"), QStringLiteral("Picture %1").arg(m_id));
+
+    writer.writeStartElement(QStringLiteral("xdr:cNvPicPr"));
+    writer.writeEmptyElement(QStringLiteral("a:picLocks"));
+    writer.writeAttribute(QStringLiteral("noChangeAspect"), QStringLiteral("1"));
+    writer.writeEndElement(); //xdr:cNvPicPr
+
+    writer.writeEndElement(); //xdr:nvPicPr
+
+    m_drawing->relationships.addDocumentRelationship(QStringLiteral("/image"), QStringLiteral("../media/image%1.%2")
+                                                     .arg(m_pictureFile->index()+1)
+                                                     .arg(m_pictureFile->suffix()));
+
+    writer.writeStartElement(QStringLiteral("xdr:blipFill"));
+    writer.writeEmptyElement(QStringLiteral("a:blip"));
+    writer.writeAttribute(QStringLiteral("xmlns:r"), QStringLiteral("http://schemas.openxmlformats.org/officeDocument/2006/relationships"));
+    writer.writeAttribute(QStringLiteral("r:embed"), QStringLiteral("rId%1").arg(m_drawing->relationships.count()));
+    writer.writeStartElement(QStringLiteral("a:stretch"));
+    writer.writeEmptyElement(QStringLiteral("a:fillRect"));
+    writer.writeEndElement(); //a:stretch
+    writer.writeEndElement();//xdr:blipFill
+
+    writer.writeStartElement(QStringLiteral("xdr:spPr"));
+
+    writer.writeStartElement(QStringLiteral("a:prstGeom"));
+    writer.writeAttribute(QStringLiteral("prst"), QStringLiteral("rect"));
+    writer.writeEmptyElement(QStringLiteral("a:avLst"));
+    writer.writeEndElement(); //a:prstGeom
+
+    writer.writeEndElement(); //xdr:spPr
+
+    writer.writeEndElement(); //xdr:pic
+}
+
+void DrawingAnchor::saveXmlObjectShape(QXmlStreamWriter &writer) const
+{
+    Q_UNUSED(writer)
+}
+
+//absolute anchor
+
+DrawingAbsoluteAnchor::DrawingAbsoluteAnchor(Drawing *drawing, ObjectType objectType)
+    :DrawingAnchor(drawing, objectType)
+{
+
+}
+
+bool DrawingAbsoluteAnchor::loadFromXml(QXmlStreamReader &reader)
+{
+    Q_ASSERT(reader.name() == QLatin1String("absoluteAnchor"));
+
+    while (!reader.atEnd()) {
+        reader.readNextStartElement();
+        if (reader.tokenType() == QXmlStreamReader::StartElement) {
+            if (reader.name() == QLatin1String("pos")) {
+                pos = loadXmlPos(reader);
+            } else if (reader.name() == QLatin1String("ext")) {
+                ext = loadXmlExt(reader);
+            } else {
+                loadXmlObject(reader);
+            }
+        } else if (reader.tokenType() == QXmlStreamReader::EndElement
+                   && reader.name() == QLatin1String("absoluteAnchor")) {
+            break;
+        }
+    }
+    return true;
+}
+
+void DrawingAbsoluteAnchor::saveToXml(QXmlStreamWriter &writer) const
+{
+    writer.writeStartElement(QStringLiteral("xdr:absoluteAnchor"));
+    saveXmlPos(writer, pos);
+    saveXmlExt(writer, ext);
+
+    saveXmlObject(writer);
+
+    writer.writeEmptyElement(QStringLiteral("xdr:clientData"));
+    writer.writeEndElement(); //xdr:absoluteAnchor
+}
+
+//one cell anchor
+
+DrawingOneCellAnchor::DrawingOneCellAnchor(Drawing *drawing, ObjectType objectType)
+    :DrawingAnchor(drawing, objectType)
+{
+
+}
+
+bool DrawingOneCellAnchor::loadFromXml(QXmlStreamReader &reader)
+{
+    Q_ASSERT(reader.name() == QLatin1String("oneCellAnchor"));
+    while (!reader.atEnd()) {
+        reader.readNextStartElement();
+        if (reader.tokenType() == QXmlStreamReader::StartElement) {
+            if (reader.name() == QLatin1String("from")) {
+                from = loadXmlMarker(reader, QLatin1String("from"));
+            } else if (reader.name() == QLatin1String("ext")) {
+                ext = loadXmlExt(reader);
+            } else {
+                loadXmlObject(reader);
+            }
+        } else if (reader.tokenType() == QXmlStreamReader::EndElement
+                   && reader.name() == QLatin1String("oneCellAnchor")) {
+            break;
+        }
+    }
+    return true;
+}
+
+void DrawingOneCellAnchor::saveToXml(QXmlStreamWriter &writer) const
+{
+    writer.writeStartElement(QStringLiteral("xdr:oneCellAnchor"));
+
+    saveXmlMarker(writer, from, QStringLiteral("xdr:from"));
+    saveXmlExt(writer, ext);
+
+    saveXmlObject(writer);
+
+    writer.writeEmptyElement(QStringLiteral("xdr:clientData"));
+    writer.writeEndElement(); //xdr:oneCellAnchor
+}
+
+/*
+   Two cell anchor
+
+   This class specifies a two cell anchor placeholder for a group
+   , a shape, or a drawing element. It moves with
+   cells and its extents are in EMU units.
+*/
+DrawingTwoCellAnchor::DrawingTwoCellAnchor(Drawing *drawing, ObjectType objectType)
+    :DrawingAnchor(drawing, objectType)
+{
+
+}
+
+bool DrawingTwoCellAnchor::loadFromXml(QXmlStreamReader &reader)
+{
+    Q_ASSERT(reader.name() == QLatin1String("twoCellAnchor"));
+    while (!reader.atEnd()) {
+        reader.readNextStartElement();
+        if (reader.tokenType() == QXmlStreamReader::StartElement) {
+            if (reader.name() == QLatin1String("from")) {
+                from = loadXmlMarker(reader, QLatin1String("from"));
+            } else if (reader.name() == QLatin1String("to")) {
+                to = loadXmlMarker(reader, QLatin1String("to"));
+            } else {
+                loadXmlObject(reader);
+            }
+        } else if (reader.tokenType() == QXmlStreamReader::EndElement
+                   && reader.name() == QLatin1String("twoCellAnchor")) {
+            break;
+        }
+    }
+    return true;
+}
+
+void DrawingTwoCellAnchor::saveToXml(QXmlStreamWriter &writer) const
+{
+    writer.writeStartElement(QStringLiteral("xdr:twoCellAnchor"));
+    writer.writeAttribute(QStringLiteral("editAs"), QStringLiteral("oneCell"));
+
+    saveXmlMarker(writer, from, QStringLiteral("xdr:from"));
+    saveXmlMarker(writer, to, QStringLiteral("xdr:to"));
+
+    saveXmlObject(writer);
+
+    writer.writeEmptyElement(QStringLiteral("xdr:clientData"));
+    writer.writeEndElement(); //xdr:twoCellAnchor
+}
+
+} // namespace QXlsx

src/xlsx/xlsxdrawinganchor_p.h

@@ -0,0 +1,148 @@
+/****************************************************************************
+** Copyright (c) 2013-2014 Debao Zhang <hello@debao.me>
+** All right reserved.
+**
+** Permission is hereby granted, free of charge, to any person obtaining
+** a copy of this software and associated documentation files (the
+** "Software"), to deal in the Software without restriction, including
+** without limitation the rights to use, copy, modify, merge, publish,
+** distribute, sublicense, and/or sell copies of the Software, and to
+** permit persons to whom the Software is furnished to do so, subject to
+** the following conditions:
+**
+** The above copyright notice and this permission notice shall be
+** included in all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+** NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+** LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+** OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+** WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+**
+****************************************************************************/
+
+#ifndef QXLSX_XLSXDRAWINGANCHOR_P_H
+#define QXLSX_XLSXDRAWINGANCHOR_P_H
+
+#include "xlsxglobal.h"
+
+#include <QPoint>
+#include <QSize>
+#include <QString>
+#include <QSharedPointer>
+
+class QXmlStreamReader;
+class QXmlStreamWriter;
+
+namespace QXlsx {
+
+class Drawing;
+class MediaFile;
+
+//Helper class
+struct XlsxMarker
+{
+    XlsxMarker(){}
+    XlsxMarker(int row, int column, int rowOffset, int colOffset)
+        :cell(QPoint(row, column)), offset(rowOffset, colOffset)
+    {
+
+    }
+
+    int row() const {return cell.x();}
+    int col() const {return cell.y();}
+    int rowOff() const {return offset.width();}
+    int colOff() const {return offset.height();}
+
+    QPoint cell;
+    QSize offset;
+};
+
+class DrawingAnchor
+{
+public:
+    enum ObjectType {
+        GraphicFrame,
+        Shape,
+        GroupShape,
+        ConnectionShape,
+        Picture,
+        Unknown
+    };
+
+    DrawingAnchor(Drawing *drawing, ObjectType objectType);
+    virtual ~DrawingAnchor();
+    void setObjectPicture(const QImage &img);
+
+    virtual bool loadFromXml(QXmlStreamReader &reader) = 0;
+    virtual void saveToXml(QXmlStreamWriter &writer) const = 0;
+
+protected:
+    QPoint loadXmlPos(QXmlStreamReader &reader);
+    QSize loadXmlExt(QXmlStreamReader &reader);
+    XlsxMarker loadXmlMarker(QXmlStreamReader &reader, const QString &node);
+    void loadXmlObject(QXmlStreamReader &reader);
+    void loadXmlObjectShape(QXmlStreamReader &reader);
+    void loadXmlObjectGroupShape(QXmlStreamReader &reader);
+    void loadXmlObjectGraphicFrame(QXmlStreamReader &reader);
+    void loadXmlObjectConnectionShape(QXmlStreamReader &reader);
+    void loadXmlObjectPicture(QXmlStreamReader &reader);
+
+    void saveXmlPos(QXmlStreamWriter &writer, const QPoint &pos) const;
+    void saveXmlExt(QXmlStreamWriter &writer, const QSize &ext) const;
+    void saveXmlMarker(QXmlStreamWriter &writer, const XlsxMarker &marker, const QString &node) const;
+    void saveXmlObject(QXmlStreamWriter &writer) const;
+    void saveXmlObjectShape(QXmlStreamWriter &writer) const;
+    void saveXmlObjectGroupShape(QXmlStreamWriter &writer) const;
+    void saveXmlObjectGraphicFrame(QXmlStreamWriter &writer) const;
+    void saveXmlObjectConnectionShape(QXmlStreamWriter &writer) const;
+    void saveXmlObjectPicture(QXmlStreamWriter &writer) const;
+
+    Drawing *m_drawing;
+    ObjectType m_objectType;
+    QSharedPointer<MediaFile> m_pictureFile;
+
+    int m_id;
+};
+
+class DrawingAbsoluteAnchor : public DrawingAnchor
+{
+public:
+    DrawingAbsoluteAnchor(Drawing *drawing, ObjectType objectType=Unknown);
+
+    QPoint pos;
+    QSize ext;
+
+    bool loadFromXml(QXmlStreamReader &reader);
+    void saveToXml(QXmlStreamWriter &writer) const;
+};
+
+class DrawingOneCellAnchor : public DrawingAnchor
+{
+public:
+    DrawingOneCellAnchor(Drawing *drawing, ObjectType objectType=Unknown);
+
+    XlsxMarker from;
+    QSize ext;
+
+    bool loadFromXml(QXmlStreamReader &reader);
+    void saveToXml(QXmlStreamWriter &writer) const;
+};
+
+class DrawingTwoCellAnchor : public DrawingAnchor
+{
+public:
+    DrawingTwoCellAnchor(Drawing *drawing, ObjectType objectType=Unknown);
+
+    XlsxMarker from;
+    XlsxMarker to;
+
+    bool loadFromXml(QXmlStreamReader &reader);
+    void saveToXml(QXmlStreamWriter &writer) const;
+};
+
+} // namespace QXlsx
+
+#endif // QXLSX_XLSXDRAWINGANCHOR_P_H

src/xlsx/xlsxmediafile.cpp

@@ -0,0 +1,99 @@
+/****************************************************************************
+** Copyright (c) 2013-2014 Debao Zhang <hello@debao.me>
+** All right reserved.
+**
+** Permission is hereby granted, free of charge, to any person obtaining
+** a copy of this software and associated documentation files (the
+** "Software"), to deal in the Software without restriction, including
+** without limitation the rights to use, copy, modify, merge, publish,
+** distribute, sublicense, and/or sell copies of the Software, and to
+** permit persons to whom the Software is furnished to do so, subject to
+** the following conditions:
+**
+** The above copyright notice and this permission notice shall be
+** included in all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+** NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+** LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+** OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+** WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+**
+****************************************************************************/
+
+#include "xlsxmediafile_p.h"
+#include <QCryptographicHash>
+
+namespace QXlsx {
+
+MediaFile::MediaFile(const QByteArray &bytes, const QString &suffix, const QString &mimeType)
+    : m_contents(bytes), m_suffix(suffix), m_mimeType(mimeType)
+      , m_index(0), m_indexValid(false)
+{
+    m_hashKey = QCryptographicHash::hash(m_contents, QCryptographicHash::Md5);
+}
+
+MediaFile::MediaFile(const QString &fileName)
+    :m_fileName(fileName), m_index(0), m_indexValid(false)
+{
+
+}
+
+void MediaFile::set(const QByteArray &bytes, const QString &suffix, const QString &mimeType)
+{
+    m_contents = bytes;
+    m_suffix = suffix;
+    m_mimeType = mimeType;
+    m_hashKey = QCryptographicHash::hash(m_contents, QCryptographicHash::Md5);
+    m_indexValid = false;
+}
+
+void MediaFile::setFileName(const QString &name)
+{
+    m_fileName = name;
+}
+
+QString MediaFile::fileName() const
+{
+    return m_fileName;
+}
+
+QString MediaFile::suffix() const
+{
+    return m_suffix;
+}
+
+QString MediaFile::mimeType() const
+{
+    return m_mimeType;
+}
+
+QByteArray MediaFile::contents() const
+{
+    return m_contents;
+}
+
+int MediaFile::index() const
+{
+    return m_index;
+}
+
+bool MediaFile::isIndexValid() const
+{
+    return m_indexValid;
+}
+
+void MediaFile::setIndex(int idx)
+{
+    m_index = idx;
+    m_indexValid = true;
+}
+
+QByteArray MediaFile::hashKey() const
+{
+    return m_hashKey;
+}
+
+} // namespace QXlsx

src/xlsx/xlsxmediafile_p.h

@@ -0,0 +1,68 @@
+/****************************************************************************
+** Copyright (c) 2013-2014 Debao Zhang <hello@debao.me>
+** All right reserved.
+**
+** Permission is hereby granted, free of charge, to any person obtaining
+** a copy of this software and associated documentation files (the
+** "Software"), to deal in the Software without restriction, including
+** without limitation the rights to use, copy, modify, merge, publish,
+** distribute, sublicense, and/or sell copies of the Software, and to
+** permit persons to whom the Software is furnished to do so, subject to
+** the following conditions:
+**
+** The above copyright notice and this permission notice shall be
+** included in all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+** NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+** LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+** OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+** WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+**
+****************************************************************************/
+
+#ifndef QXLSX_XLSXMEDIAFILE_H
+#define QXLSX_XLSXMEDIAFILE_H
+
+#include "xlsxglobal.h"
+
+#include <QString>
+#include <QByteArray>
+
+namespace QXlsx {
+
+class MediaFile
+{
+public:
+    MediaFile(const QString &fileName);
+    MediaFile(const QByteArray &bytes, const QString &suffix, const QString &mimeType=QString());
+
+    void set(const QByteArray &bytes, const QString &suffix, const QString &mimeType=QString());
+    QString suffix() const;
+    QString mimeType() const;
+    QByteArray contents() const;
+
+    bool isIndexValid() const;
+    int index() const;
+    void setIndex(int idx);
+    QByteArray hashKey() const;
+
+    void setFileName(const QString &name);
+    QString fileName() const;
+
+private:
+    QString m_fileName; //...
+    QByteArray m_contents;
+    QString m_suffix;
+    QString m_mimeType;
+
+    bool m_indexValid;
+    int m_index;
+    QByteArray m_hashKey;
+};
+
+} // namespace QXlsx
+
+#endif // QXLSX_XLSXMEDIAFILE_H

src/xlsx/xlsxworkbook.cpp

@@ -30,6 +30,7 @@
 #include "xlsxformat.h"
 #include "xlsxworksheet_p.h"
 #include "xlsxformat_p.h"
+#include "xlsxmediafile_p.h"
 
 #include <QXmlStreamWriter>
 #include <QXmlStreamReader>
@@ -370,41 +371,22 @@ Theme *Workbook::theme()
     return d->theme.data();
 }
 
-QList<QImage> Workbook::images()
+/*!
-{
+ * \internal
-    Q_D(Workbook);
+ *
-    return d->images;
+ * Unlike media files, drawing file is a property of the sheet.
-}
+ */
-
 QList<Drawing *> Workbook::drawings()
 {
     Q_D(Workbook);
-    return d->drawings;
+    QList<Drawing *> ds;
-}
-
-void Workbook::prepareDrawings()
-{
-    Q_D(Workbook);
-    int image_ref_id = 0;
-    d->images.clear();
-    d->drawings.clear();
-
     for (int i=0; i<d->worksheets.size(); ++i) {
         QSharedPointer<Worksheet> sheet = d->worksheets[i];
-        if (sheet->images().isEmpty()) //No drawing (such as Image, ...)
+        if (sheet->drawing())
-            continue;
+        ds.append(sheet->drawing());
-
-        sheet->clearExtraDrawingInfo();
-
-        //At present, only picture type supported
-        for (int idx = 0; idx < sheet->images().size(); ++idx) {
-            image_ref_id += 1;
-            sheet->prepareImage(idx, image_ref_id);
-            d->images.append(sheet->images()[idx]->image);
-        }
-
-        d->drawings.append(sheet->drawing());
     }
+
+    return ds;
 }
 
 void Workbook::saveToXmlFile(QIODevice *device) const
@@ -585,4 +567,32 @@ Relationships &Workbook::relationships()
     return d->relationships;
 }
 
+/*!
+ * \internal
+ */
+QList<QSharedPointer<MediaFile> > Workbook::mediaFiles() const
+{
+    Q_D(const Workbook);
+
+    return d->mediaFiles;
+}
+
+/*!
+ * \internal
+ */
+void Workbook::addMediaFile(QSharedPointer<MediaFile> media, bool force)
+{
+    Q_D(Workbook);
+    if (!force) {
+        for (int i=0; i<d->mediaFiles.size(); ++i) {
+            if (d->mediaFiles[i]->hashKey() == media->hashKey()) {
+                media->setIndex(i);
+                return;
+            }
+        }
+    }
+    media->setIndex(d->mediaFiles.size());
+    d->mediaFiles.append(media);
+}
+
 QT_END_NAMESPACE_XLSX

src/xlsx/xlsxworkbook.h

@@ -42,6 +42,7 @@ class Document;
 class Theme;
 class Relationships;
 class DocumentPrivate;
+class MediaFile;
 
 class WorkbookPrivate;
 class Q_XLSX_EXPORT Workbook
@@ -75,6 +76,10 @@ public:
     QString defaultDateFormat() const;
     void setDefaultDateFormat(const QString &format);
 
+    //internal used member
+    void addMediaFile(QSharedPointer<MediaFile> media, bool force=false);
+    QList<QSharedPointer<MediaFile> > mediaFiles() const;
+
 private:
     friend class Worksheet;
     friend class WorksheetPrivate;
@@ -94,9 +99,9 @@ private:
     Theme *theme();
     QList<QImage> images();
     QList<Drawing *> drawings();
-    void prepareDrawings();
     QStringList worksheetNames() const;
     Worksheet *addWorksheet(const QString &name, int sheetId);
+
     WorkbookPrivate * const d_ptr;
 };
 

src/xlsx/xlsxworkbook_p.h

@@ -87,8 +87,7 @@ public:
     QStringList worksheetNames;
     QSharedPointer<Styles> styles;
     QSharedPointer<Theme> theme;
-    QList<QImage> images;
+    QList<QSharedPointer<MediaFile> > mediaFiles;
-    QList<Drawing *> drawings;
     QList<XlsxDefineNameData> definedNamesList;
 
     QList<XlsxSheetItemInfo> sheetItemInfoList;//Data from xml file

src/xlsx/xlsxworksheet.cpp

@@ -36,6 +36,7 @@
 #include "xlsxcell_p.h"
 #include "xlsxcellrange.h"
 #include "xlsxconditionalformatting_p.h"
+#include "xlsxdrawinganchor_p.h"
 
 #include <QVariant>
 #include <QDateTime>
@@ -455,12 +456,6 @@ void Worksheet::setWhiteSpaceVisible(bool visible)
     d->showWhiteSpace = visible;
 }
 
-QList<QPair<QString, QString> > Worksheet::drawingLinks() const
-{
-    Q_D(const Worksheet);
-    return d->drawingLinks;
-}
-
 /*!
  * Write \a value to cell (\a row, \a column) with the \a format.
  * Both \a row and \a column are all 1-indexed value.
@@ -1024,12 +1019,33 @@ bool Worksheet::addConditionalFormatting(const ConditionalFormatting &cf)
     return true;
 }
 
-int Worksheet::insertImage(int row, int column, const QImage &image, const QPointF &offset, double xScale, double yScale)
+bool Worksheet::insertImage(int row, int column, const QImage &image)
 {
     Q_D(Worksheet);
 
-    d->imageList.append(new XlsxImageData(row, column, image, offset, xScale, yScale));
+    if (image.isNull())
-    return 0;
+        return false;
+
+    if (!d->drawing)
+        d->drawing = new Drawing(d->workbook);
+
+    DrawingOneCellAnchor *anchor = new DrawingOneCellAnchor(d->drawing, DrawingAnchor::Picture);
+
+    /*
+        The size are expressed as English Metric Units (EMUs). There are
+        12,700 EMUs per point. Therefore, 12,700 * 3 /4 = 9,525 EMUs per
+        pixel
+    */
+    anchor->from = XlsxMarker(row, column, 0, 0);
+    anchor->ext = QSize(image.width() * 9525, image.height() * 9525);
+
+    anchor->setObjectPicture(image);
+    return true;
+}
+
+int Worksheet::insertImage(int row, int column, const QImage &image, const QPointF & /*offset*/, double /*xScale*/, double /*yScale*/)
+{
+    return insertImage(row, column, image);
 }
 
 /*!
@@ -1678,61 +1694,38 @@ CellRange Worksheet::dimension() const
     return d->dimension;
 }
 
+/*!
+ * \internal
+ */
 Drawing *Worksheet::drawing() const
 {
     Q_D(const Worksheet);
     return d->drawing;
 }
 
-QList<XlsxImageData *> Worksheet::images() const
+/*!
+ * \internal
+ *
+ * When loading the .xlsx package, the drawing{x}.xml file path
+ * is extracted when we parse the sheet{x}.xml file.
+ */
+QString Worksheet::drawingPath() const
 {
     Q_D(const Worksheet);
-    return d->imageList;
+    return d->drawingPath_in_zip;
 }
 
-void Worksheet::clearExtraDrawingInfo()
+/*!
+ * \internal
+ *
+ * Note, the object will be managed by this sheet.
+ */
+void Worksheet::setDrawing(Drawing *draw)
 {
     Q_D(Worksheet);
-    if (d->drawing) {
+    Q_ASSERT(!d->drawing);
-        delete d->drawing;
-        d->drawing = 0;
-        d->drawingLinks.clear();
-    }
-}
 
-void Worksheet::prepareImage(int index, int image_id)
+    d->drawing = draw;
-{
-    Q_D(Worksheet);
-    if (!d->drawing) {
-        d->drawing = new Drawing;
-        d->drawing->embedded = true;
-    }
-
-    XlsxImageData *imageData = d->imageList[index];
-
-    XlsxDrawingDimensionData *data = new XlsxDrawingDimensionData;
-    data->drawing_type = 2;
-
-    double width = imageData->image.width() * imageData->xScale;
-    double height = imageData->image.height() * imageData->yScale;
-
-    XlsxObjectPositionData posData = d->pixelsToEMUs(d->objectPixelsPosition(imageData->col, imageData->row, imageData->offset.x(), imageData->offset.y(), width, height));
-    data->col_from = posData.col_start;
-    data->col_from_offset = posData.x1;
-    data->row_from = posData.row_start;
-    data->row_from_offset = posData.y1;
-    data->col_to = posData.col_end;
-    data->col_to_offset = posData.x2;
-    data->row_to = posData.row_end;
-    data->row_to_offset = posData.y2;
-    data->width = posData.width;
-    data->height = posData.height;
-    data->col_absolute = posData.x_abs;
-    data->row_absolute = posData.y_abs;
-
-    d->drawing->dimensionList.append(data);
-
-    d->drawingLinks.append(QPair<QString, QString>(QStringLiteral("/image"), QStringLiteral("../media/image%1.png").arg(image_id)));
 }
 
 /*
@@ -1774,96 +1767,6 @@ int WorksheetPrivate::colPixelsSize(int col) const
     return pixels;
 }
 
-/*
-        col_start     Col containing upper left corner of object.
-        x1            Distance to left side of object.
-        row_start     Row containing top left corner of object.
-        y1            Distance to top of object.
-        col_end       Col containing lower right corner of object.
-        x2            Distance to right side of object.
-        row_end       Row containing bottom right corner of object.
-        y2            Distance to bottom of object.
-        width         Width of object frame.
-        height        Height of object frame.
-        x_abs         Absolute distance to left side of object.
-        y_abs         Absolute distance to top side of object.
-*/
-XlsxObjectPositionData WorksheetPrivate::objectPixelsPosition(int col_start, int row_start, double x1, double y1, double width, double height) const
-{
-    double x_abs = 0;
-    double y_abs = 0;
-    for (int col_id = 1; col_id < col_start; ++col_id)
-        x_abs += colPixelsSize(col_id);
-    x_abs += x1;
-    for (int row_id = 1; row_id < row_start; ++row_id)
-        y_abs += rowPixelsSize(row_id);
-    y_abs += y1;
-
-    // Adjust start column for offsets that are greater than the col width.
-    while (x1 > colPixelsSize(col_start)) {
-        x1 -= colPixelsSize(col_start);
-        col_start += 1;
-    }
-    while (y1 > rowPixelsSize(row_start)) {
-        y1 -= rowPixelsSize(row_start);
-        row_start += 1;
-    }
-
-    int col_end = col_start;
-    int row_end = row_start;
-    double x2 = width + x1;
-    double y2 = height + y1;
-
-    while (x2 > colPixelsSize(col_end)) {
-        x2 -= colPixelsSize(col_end);
-        col_end += 1;
-    }
-
-    while (y2 > rowPixelsSize(row_end)) {
-        y2 -= rowPixelsSize(row_end);
-        row_end += 1;
-    }
-
-    XlsxObjectPositionData data;
-    data.col_start = col_start;
-    data.x1 = x1;
-    data.row_start = row_start;
-    data.y1 = y1;
-    data.col_end = col_end;
-    data.x2 = x2;
-    data.row_end = row_end;
-    data.y2 = y2;
-    data.x_abs = x_abs;
-    data.y_abs = y_abs;
-    data.width = width;
-    data.height = height;
-
-    return data;
-}
-
-/*
-        Calculate the vertices that define the position of a graphical
-        object within the worksheet in EMUs.
-
-        The vertices are expressed as English Metric Units (EMUs). There are
-        12,700 EMUs per point. Therefore, 12,700 * 3 /4 = 9,525 EMUs per
-        pixel
-*/
-XlsxObjectPositionData WorksheetPrivate::pixelsToEMUs(const XlsxObjectPositionData &data) const
-{
-    XlsxObjectPositionData result = data;
-    result.x1 = static_cast<int>(data.x1 * 9525 + 0.5);
-    result.y1 = static_cast<int>(data.y1 * 9525 + 0.5);
-    result.x2 = static_cast<int>(data.x2 * 9525 + 0.5);
-    result.y2 = static_cast<int>(data.y2 * 9525 + 0.5);
-    result.x_abs = static_cast<int>(data.x_abs * 9525 + 0.5);
-    result.y_abs = static_cast<int>(data.y_abs * 9525 + 0.5);
-    result.width = static_cast<int>(data.width * 9525 + 0.5);
-    result.height = static_cast<int>(data.height * 9525 + 0.5);
-
-    return result;
-}
-
 QByteArray Worksheet::saveToXmlData() const
 {
     QByteArray data;
@@ -2220,6 +2123,9 @@ bool Worksheet::loadFromXmlFile(QIODevice *device)
                 d->conditionalFormattingList.append(cf);
             } else if (reader.name() == QLatin1String("hyperlinks")) {
                 d->loadXmlHyperlinks(reader);
+            } else if (reader.name() == QLatin1String("drawing")) {
+                QString rId = reader.attributes().value(QStringLiteral("r:id")).toString();
+                d->drawingPath_in_zip = d->relationships.getRelationshipById(rId).target;
             }
         }
     }

src/xlsx/xlsxworksheet.h

@@ -90,7 +90,8 @@ public:
     Cell *cellAt(const QString &row_column) const;
     Cell *cellAt(int row, int column) const;
 
-    int insertImage(int row, int column, const QImage &image, const QPointF &offset=QPointF(), double xScale=1, double yScale=1);
+    bool insertImage(int row, int column, const QImage &image);
+    Q_DECL_DEPRECATED int insertImage(int row, int column, const QImage &image, const QPointF &offset, double xScale=1, double yScale=1);
 
     int mergeCells(const QString &range, const Format &format=Format());
     int mergeCells(const CellRange &range, const Format &format=Format());
@@ -149,11 +150,10 @@ private:
     bool isHidden() const;
     void setHidden(bool hidden);
     int sheetId() const;
-    QList<QPair<QString, QString> > drawingLinks() const;
+
     Drawing *drawing() const;
-    QList<XlsxImageData *> images() const;
+    void setDrawing(Drawing *d);
-    void prepareImage(int index, int image_id);
+    QString drawingPath() const;
-    void clearExtraDrawingInfo();
 
     WorksheetPrivate * const d_ptr;
 };

src/xlsx/xlsxworksheet_p.h

@@ -79,67 +79,6 @@ struct XlsxHyperlinkData
     QString tooltip;
 };
 
-struct XlsxImageData
-{
-    XlsxImageData(int row, int col, const QImage &image, const QPointF &offset, double xScale, double yScale) :
-        row(row), col(col), image(image), offset(offset), xScale(xScale), yScale(yScale)
-    {
-    }
-
-    int row;
-    int col;
-    QImage image;
-    QPointF offset;
-    double xScale;
-    double yScale;
-};
-
-/*
-     The vertices that define the position of a graphical object
-     within the worksheet in pixels.
-
-             +------------+------------+
-             |     A      |      B     |
-       +-----+------------+------------+
-       |     |(x1,y1)     |            |
-       |  1  |(A1)._______|______      |
-       |     |    |              |     |
-       |     |    |              |     |
-       +-----+----|    OBJECT    |-----+
-       |     |    |              |     |
-       |  2  |    |______________.     |
-       |     |            |        (B2)|
-       |     |            |     (x2,y2)|
-       +---- +------------+------------+
-
-     Example of an object that covers some of the area from cell A1 to  B2.
-
-     Based on the width and height of the object we need to calculate 8 vars:
-
-         col_start, row_start, col_end, row_end, x1, y1, x2, y2.
-
-     We also calculate the absolute x and y position of the top left vertex of
-     the object. This is required for images.
-
-     The width and height of the cells that the object occupies can be
-     variable and have to be taken into account.
-*/
-struct XlsxObjectPositionData
-{
-    int col_start;
-    double x1;
-    int row_start;
-    double y1;
-    int col_end;
-    double x2;
-    int row_end;
-    double y2;
-    double width;
-    double height;
-    double x_abs;
-    double y_abs;
-};
-
 struct XlsxRowInfo
 {
     XlsxRowInfo(double height=0, const Format &format=Format(), bool hidden=false) :
@@ -193,8 +132,6 @@ public:
     void saveXmlDataValidations(QXmlStreamWriter &writer) const;
     int rowPixelsSize(int row) const;
     int colPixelsSize(int col) const;
-    XlsxObjectPositionData objectPixelsPosition(int col_start, int row_start, double x1, double y1, double width, double height) const;
-    XlsxObjectPositionData pixelsToEMUs(const XlsxObjectPositionData &data) const;
 
     QSharedPointer<Cell> loadXmlNumericCellData(QXmlStreamReader &reader);
     void loadXmlSheetData(QXmlStreamReader &reader);
@@ -210,15 +147,14 @@ public:
     Workbook *workbook;
     mutable Relationships relationships;
     Drawing *drawing;
+    QString drawingPath_in_zip;
     QMap<int, QMap<int, QSharedPointer<Cell> > > cellTable;
     QMap<int, QMap<int, QString> > comments;
     QMap<int, QMap<int, QSharedPointer<XlsxHyperlinkData> > > urlTable;
     QList<CellRange> merges;
-    QList<XlsxImageData *> imageList;
     QMap<int, QSharedPointer<XlsxRowInfo> > rowsInfo;
     QMap<int, QSharedPointer<XlsxColumnInfo> > colsInfo;
     QMap<int, QSharedPointer<XlsxColumnInfo> > colsInfoHelper;
-    QList<QPair<QString, QString> > drawingLinks;
 
     QList<DataValidation> dataValidationsList;
     QList<ConditionalFormatting> conditionalFormattingList;