File indexing completed on 2024-12-08 12:56:12

 /* This file is part of the KDE project
 
    Copyright (C) 2012-2013 Inge Wallin            <inge@lysator.liu.se>
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
 */
 
 
 // Own
 #include "OdfTextReader.h"
 
 // Qt
 #include <QStringList>
 #include <QBuffer>
 
 // KF5
 #include <klocalizedstring.h>
 
 // Calligra
 #include <KoStore.h>
 #include <KoXmlStreamReader.h>
 #include <KoXmlNS.h>
 #include <KoXmlWriter.h>  // For copyXmlElement
 #include <KoOdfReadStore.h>
 
 // Reader library
 #include "OdfReader.h"
 #include "OdfDrawReaderBackend.h"
 #include "OdfReaderContext.h"
 #include "OdfReaderDebug.h"
 
 
 #if 1
 static int debugIndent = 0;
 #define DEBUGSTART() \
     ++debugIndent; \
     DEBUG_READING("entering")
 #define DEBUGEND() \
     DEBUG_READING("exiting"); \
     --debugIndent
 #define DEBUG_READING(param) \
     debugOdfReader << QString("%1").arg(" ", debugIndent * 2) << param << ": " \
     << (reader.isStartElement() ? "start": (reader.isEndElement() ? "end" : "other")) \
     << reader.qualifiedName().toString()
 #else
 #define DEBUGSTART() \
     // NOTHING
 #define DEBUGEND() \
     // NOTHING
 #define DEBUG_READING(param) \
     // NOTHING
 #endif
 
 
 OdfDrawReader::OdfDrawReader()
     : m_parent(0)
     , m_backend(0)
     , m_context(0)
 {
 }
 
 OdfDrawReader::~OdfDrawReader()
 {
 }
 
 
 // ----------------------------------------------------------------
 //                             setters
 
 
 void OdfDrawReader::setParent(OdfReader *parent)
 {
     m_parent = parent;
 }
 
 void OdfDrawReader::setBackend(OdfDrawReaderBackend *backend)
 {
     m_backend = backend;
 }
 
 void OdfDrawReader::setContext(OdfReaderContext *context)
 {
     m_context = context;
 }
 
 
 // ----------------------------------------------------------------
 //                         namespace dr3d
 
 
 void OdfDrawReader::readElementDr3dScene(KoXmlStreamReader &reader)
 {
    DEBUGSTART();
     m_backend->elementDr3dScene(reader, m_context);
 
     // <dr3d:scene> has the following children in ODF 1.2:
     //   [done] <dr3d:cube> 10.5.4
     //   [done] <dr3d:extrude> 10.5.6
     //   [done] <dr3d:light> 10.5.3
     //   [done] <dr3d:rotate> 10.5.7
     //   [done] <dr3d:scene> 10.5.2
     //   [done] <dr3d:sphere> 10.5.5
 
     //          <draw:glue-point> 10.3.16
     //          <svg:desc> 10.3.18
     //          <svg:title> 10.3.17.
     //
     while (reader.readNextStartElement()) {
         QString tagName = reader.qualifiedName().toString();
         
         if (tagName == "dr3d:cube") {
         readElementDr3dCube(reader);
         }
         else if (tagName == "dr3d:extrude") {
         readElementDr3dExtrude(reader);
         }
         else if (tagName == "dr3d:light") {
         readElementDr3dLight(reader);
         }
         else if (tagName == "dr3d:rotate") {
         readElementDr3dRotate(reader);
         }
         else if (tagName == "dr3d:scene") {
         readElementDr3dScene(reader);
         }
         else if (tagName == "dr3d:sphere") {
         readElementDr3dSphere(reader);
         }
         //...  MORE else if () HERE
         else {
             reader.skipCurrentElement();
         }
     }
 
     m_backend->elementDr3dScene(reader, m_context);
     DEBUGEND();
 }
 
 IMPLEMENT_READER_FUNCTION_NO_CHILDREN(OdfDrawReader, Dr3dLight)   // ODF 1.2  10.5.3
 IMPLEMENT_READER_FUNCTION_NO_CHILDREN(OdfDrawReader, Dr3dCube)    // ODF 1.2  10.5.4
 IMPLEMENT_READER_FUNCTION_NO_CHILDREN(OdfDrawReader, Dr3dSphere)  // ODF 1.2  10.5.5
 IMPLEMENT_READER_FUNCTION_NO_CHILDREN(OdfDrawReader, Dr3dExtrude) // ODF 1.2  10.5.6
 IMPLEMENT_READER_FUNCTION_NO_CHILDREN(OdfDrawReader, Dr3dRotate)  // ODF 1.2  10.5.7
 
 
 // ================================================================
 //                         namespace draw
 
 
 // ----------------------------------------------------------------
 
 
 #if 0
 // This is a template function for the reader library.
 // Copy this one and change the name and fill in the code.
 void OdfDrawReader::readElementNamespaceTagname(KoXmlStreamReader &reader)
 {
    DEBUGSTART();
     m_backend->elementNamespaceTagname(reader, m_context);
 
     // <namespace:tagname> has the following children in ODF 1.2:
     //   FILL IN THE CHILDREN LIKE THIS EXAMPLE (taken from office:document-content):
     //          <office:automatic-styles> 3.15.3
     //          <office:body> 3.3
     //          <office:font-face-decls> 3.14
     //          <office:scripts> 3.12.
     while (reader.readNextStartElement()) {
         QString tagName = reader.qualifiedName().toString();
         
         if (tagName == "office:automatic-styles") {
             // FIXME: NYI
             reader.skipCurrentElement();
         }
         else if (tagName == "office:body") {
             readElementOfficeBody(reader);
         }
         ...  MORE else if () HERE
         else {
             reader.skipCurrentElement();
         }
     }
 
     m_backend->elementNamespaceTagname(reader, m_context);
     DEBUGEND();
 }
 #endif
 
 
 void OdfDrawReader::readCommonGraphicsElements(KoXmlStreamReader &reader)
 {
     DEBUGSTART();
 
     // This is a function common to all draw elements so no backend function
     // should be called here.
 
     // The common graphics elements are:
     //   [done] <dr3d:scene> 10.5.2
     //   [done] <draw:a> 10.4.12
     //   [done] <draw:caption> 10.3.11
     //   [done] <draw:circle> 10.3.8
     //   [done] <draw:connector> 10.3.10
     //          <draw:control> 10.3.13
     //          <draw:custom-shape> 10.6.1
     //   [done] <draw:ellipse> 10.3.9
     //   [done] <draw:frame> 10.4.2
     //          <draw:g> 10.3.15
     //   [done] <draw:line> 10.3.3
     //   [done] <draw:measure> 10.3.12
     //          <draw:page-thumbnail> 10.3.14
     //   [path] <draw:path> 10.3.7
     //   [done] <draw:polygon> 10.3.5
     //   [done] <draw:polyline> 10.3.4
     //   [done] <draw:rect> 10.3.2
     //   [done] <draw:regular-polygon> 10.3.6
 
     QString tagName = reader.qualifiedName().toString();
     //debugOdfReader << "list child:" << tagName;
     if (tagName == "dr3d:scene") {
     readElementDr3dScene(reader);
     }
     else if (tagName == "draw:a") {
     readElementDrawA(reader);
     }
     else if (tagName == "draw:caption") {
     readElementDrawCaption(reader);
     }
     else if (tagName == "draw:circle") {
     readElementDrawCircle(reader);
     }
     else if (tagName == "draw:connector") {
     readElementDrawConnector(reader);
     }
     else if (tagName == "draw:ellipse") {
     readElementDrawEllipse(reader);
     }
     else if (tagName == "draw:frame") {
     readElementDrawFrame(reader);
     }
     else if (tagName == "draw:line") {
     readElementDrawLine(reader);
     }
     else if (tagName == "draw:measure") {
     readElementDrawMeasure(reader);
     }
     else if (tagName == "draw:path") {
     readElementDrawPath(reader);
     }
     else if (tagName == "draw:polygon") {
     readElementDrawPolygon(reader);
     }
     else if (tagName == "draw:polyline") {
     readElementDrawPolyline(reader);
     }
     else if (tagName == "draw:rect") {
     readElementDrawRect(reader);
     }
     else if (tagName == "draw:regular-polygon") {
     readElementDrawRegularPolygon(reader);
     }
     else {
     // FIXME: Should this perhaps be skipCurrentElement()?
     readUnknownElement(reader);
     }
 
     DEBUGEND();
 }
 
 void OdfDrawReader::readElementDrawA(KoXmlStreamReader &reader)
 {
     DEBUGSTART();
     m_backend->elementDrawA(reader, m_context);
 
     // <draw:a> has all the normal drawing children.
     readCommonGraphicsElements(reader);
 
     m_backend->elementDrawA(reader, m_context);
     DEBUGEND();
 }
 
 
 #define IMPLEMENT_GRAPHIC_OBJECT(object)                                \
 void OdfDrawReader::readElementDraw##object(KoXmlStreamReader &reader)  \
 {                                                                       \
     DEBUGSTART();                                                       \
     m_backend->elementDraw##object(reader, m_context);                  \
                                                                         \
     readGraphicsObjectChildren(reader);                                 \
                                                                         \
     m_backend->elementDraw##object(reader, m_context);                  \
     DEBUGEND();                                                         \
 }
 
 IMPLEMENT_GRAPHIC_OBJECT(Rect)            // ODF 1.2  10.3.2
 IMPLEMENT_GRAPHIC_OBJECT(Line)        // ODF 1.2  10.3.3
 IMPLEMENT_GRAPHIC_OBJECT(Polyline)    // ODF 1.2  10.3.4
 IMPLEMENT_GRAPHIC_OBJECT(Polygon)     // ODF 1.2  10.3.5
 IMPLEMENT_GRAPHIC_OBJECT(RegularPolygon)  // ODF 1.2  10.3.6
 IMPLEMENT_GRAPHIC_OBJECT(Path)        // ODF 1.2  10.3.7
 IMPLEMENT_GRAPHIC_OBJECT(Circle)      // ODF 1.2  10.3.8
 IMPLEMENT_GRAPHIC_OBJECT(Ellipse)     // ODF 1.2  10.3.9
 IMPLEMENT_GRAPHIC_OBJECT(Connector)   // ODF 1.2  10.3.10
 IMPLEMENT_GRAPHIC_OBJECT(Caption)     // ODF 1.2  10.3.11
 IMPLEMENT_GRAPHIC_OBJECT(Measure)     // ODF 1.2  10.3.12
 
 
 void OdfDrawReader::readGraphicsObjectChildren(KoXmlStreamReader &reader)
 {
     // No backend calls in this function
 
     // <draw:circle>, <draw:rect>, etc have the following children in ODF 1.2:
     //          <draw:glue-point> 10.3.16
     //          <office:event-listeners> 10.3.19
     //          <svg:desc> 10.3.18
     //          <svg:title> 10.3.17
     //   [done] <text:list> 5.3.1
     //   [done] <text:p> 5.1.3.
     while (reader.readNextStartElement()) {
         QString tagName = reader.qualifiedName().toString();
         
         if (tagName == "draw:glue-point") {
             // FIXME: NYI
             reader.skipCurrentElement();
             //readElementOfficeDrawGluePoint(reader);
         }
         else if (tagName == "office:event-listeners") {
             // FIXME: NYI
             reader.skipCurrentElement();
             //readElementOfficeEventListeners(reader);
         }
         else if (reader.prefix() == "svg") {
         if (tagName == "svg:desc") {
         // FIXME: NYI
         reader.skipCurrentElement();
         //readElementSvgDesc(reader);
         }
         else if (tagName == "svg:title") {
         // FIXME: NYI
         reader.skipCurrentElement();
         //readElementSvgTitle(reader);
         }
         else {
         reader.skipCurrentElement();
         }
         } // namespace svg
         else if (reader.prefix() == "text") {
         OdfTextReader *textReader = m_parent->textReader();
         if (!textReader) {
         reader.skipCurrentElement();
         }
         else if (tagName == "text:list") {
         textReader->readElementTextList(reader);
         }
         else if (tagName == "text:p") {
         textReader->readElementTextP(reader);
         }
         else {
         reader.skipCurrentElement();
         }
         } // namespace text
         else {
             reader.skipCurrentElement();
         }
     }
 }
 
 
 // ----------------------------------------------------------------
 //                                 Frames
 
 
 void OdfDrawReader::readElementDrawFrame(KoXmlStreamReader &reader)
 {
     DEBUGSTART();
     m_backend->elementDrawFrame(reader, m_context);
 
     // <draw:frame> has the following children in ODF 1.2:
     //          <draw:applet> 10.4.7
     //          <draw:contour-path> 10.4.11.3
     //          <draw:contour-polygon> 10.4.11.2
     //          <draw:floating-frame> 10.4.10
     //          <draw:glue-point> 10.3.16
     //          <draw:image> 10.4.4
     //          <draw:image-map> 10.4.13.2
     //   [done] <draw:object> 10.4.6.2
     //   [done] <draw:object-ole> 10.4.6.3
     //          <draw:plugin> 10.4.8
     //          <draw:text-box> 10.4.3
     //          <office:event-listeners> 10.3.19
     //          <svg:desc> 10.3.18
     //          <svg:title> 10.3.17
     //   [done] <table:table> 9.1.2
     //
     while (reader.readNextStartElement()) {
         QString tagName = reader.qualifiedName().toString();
         
         if (tagName == "draw:image") {
             // FIXME: NYI
             reader.skipCurrentElement();
         }
         else if (tagName == "draw:object") {
         readElementDrawObject(reader);
         }
         else if (tagName == "draw:object-ole") {
         readElementDrawObjectOle(reader);
         }
         //...  MORE else if () HERE
         else if (tagName == "table:table") {
         OdfTextReader *textReader = m_parent->textReader();
         if (textReader) {
         textReader->readElementTableTable(reader);
         }
         else {
         reader.skipCurrentElement();
         }
         }
         else {
             reader.skipCurrentElement();
         }
     }
 
     m_backend->elementDrawFrame(reader, m_context);
     DEBUGEND();
 }
 
 void OdfDrawReader::readElementDrawObject(KoXmlStreamReader &reader)
 {
    DEBUGSTART();
     m_backend->elementDrawObject(reader, m_context);
 
     // <draw:object> has the following children in ODF 1.2:
     //          <math:math> 14.5
     //          <office:document> 3.1.2
     while (reader.readNextStartElement()) {
         QString tagName = reader.qualifiedName().toString();
         
         if (tagName == "math:math") {
             // FIXME: NYI
             reader.skipCurrentElement();
         }
         else if (tagName == "office:document") {
             // FIXME: NYI
             reader.skipCurrentElement();
         }
         else {
         // Shouldn't happen.
             reader.skipCurrentElement();
         }
     }
 
     m_backend->elementDrawObject(reader, m_context);
     DEBUGEND();
 }
 
 void OdfDrawReader::readElementDrawObjectOle(KoXmlStreamReader &reader)
 {
    DEBUGSTART();
     m_backend->elementDrawObjectOle(reader, m_context);
 
     // <draw:object-ole> has the following children in ODF 1.2:
     //          <office:binary-data> 10.4.5
     while (reader.readNextStartElement()) {
         QString tagName = reader.qualifiedName().toString();
         
     if (tagName == "office:binary-data") {
             // FIXME: NYI
             reader.skipCurrentElement();
         }
         else {
         // Shouldn't happen.
             reader.skipCurrentElement();
         }
     }
 
     m_backend->elementDrawObjectOle(reader, m_context);
     DEBUGEND();
 }
 
 
 // ----------------------------------------------------------------
 //                             Other functions
 
 
 void OdfDrawReader::readUnknownElement(KoXmlStreamReader &reader)
 {
     DEBUGSTART();
 
 #if 0  // FIXME: Fix this
     if (m_context->isInsideParagraph()) {
         // readParagraphContents expect to have the reader point to the
         // contents of the paragraph so we have to read past the draw:p
         // start tag here.
         reader.readNext();
         readParagraphContents(reader);
     }
     else {
         while (reader.readNextStartElement()) {
             readTextLevelElement(reader);
         }
     }
 #else
     reader.skipCurrentElement();
 #endif
 
     DEBUGEND();
 }