Class to handle plot settings object entries.

src/libs/vdxf/dxiface.cpp

@@ -125,8 +125,7 @@ void dx_iface::writeHeader(DRW_Header &data){
 
 void dx_iface::writeBlocks(){
     //write each block
-    for (std::list<dx_ifaceBlock*>::iterator it=cData.blocks.begin(); it != cData.blocks.end(); ++it){
+    for (auto *bk : cData.blocks){
-        dx_ifaceBlock* bk = *it;
         dxfW->writeBlock(bk);
         //and write each entity in block
         for (std::list<DRW_Entity*>::const_iterator it=bk->ent.begin(); it!=bk->ent.end(); ++it)
@@ -169,8 +168,13 @@ void dx_iface::writeDimstyles(){
         dxfW->writeDimstyle(&(*it));
 }
 
+void dx_iface::writeObjects()
+{
+    // default implementation for new DRW_Interface method
+}
+
 void dx_iface::writeAppId(){
-    for (std::list<DRW_AppId>::iterator it=cData.appIds.begin(); it != cData.appIds.end(); ++it)
+    for (auto it=cData.appIds.begin(); it != cData.appIds.end(); ++it)
         dxfW->writeAppId(&(*it));
 }
 

src/libs/vdxf/dxiface.h

@@ -116,6 +116,7 @@ public:
     virtual void writeTextstyles() override;
     virtual void writeVports() override;
     virtual void writeDimstyles() override;
+    virtual void writeObjects() override;
     virtual void writeAppId() override;
 
     void AddEntity(DRW_Entity* e);

src/libs/vdxf/libdxfrw/drw_base.h

@@ -156,7 +156,8 @@ BAD_READ_CLASSES,     /*!< error in classes read process. */
 BAD_READ_TABLES,      /*!< error in tables read process. */
 BAD_READ_BLOCKS,      /*!< error in block read process. */
 BAD_READ_ENTITIES,    /*!< error in entities read process. */
-BAD_READ_OBJECTS      /*!< error in objects read process. */
+BAD_READ_OBJECTS,     /*!< error in objects read process. */
+BAD_READ_SECTION,     /*!< error in sections read process. */
 };
 
 enum class DebugLevel {
@@ -301,7 +302,7 @@ public:
 /*!< convert to unitary vector */
     void unitize(){
         double dist;
-        dist = sqrt(x*x + y*y + z*z);
+        dist = hypot(hypot(x, y), z);
         if (dist > 0.0) {
             x= x/dist;
             y= y/dist;

src/libs/vdxf/libdxfrw/drw_entities.cpp

@@ -607,7 +607,7 @@ void DRW_MText::parseCode(int code, dxfReader *reader){
         text = reader->toUtf8String(text);
         break;
     case 11:
-        haveXAxis = true;
+        hasXAxisVec = true;
         DRW_Text::parseCode(code, reader);
         break;
     case 3:
@@ -681,7 +681,7 @@ void DRW_MText::parseCode(int code, dxfReader *reader){
 }
 
 void DRW_MText::updateAngle(){
-    if (haveXAxis) {
+    if (hasXAxisVec) {
             angle = atan2(secPoint.y, secPoint.x)*180/M_PI;
     }
 }

src/libs/vdxf/libdxfrw/drw_entities.h

@@ -739,7 +739,7 @@ public:
 
     DRW_MText()
         : interlin(1),
-          haveXAxis(false)//if true needed to recalculate angle
+          hasXAxisVec(false)//if true needed to recalculate angle
     {
         eType = DRW::MTEXT;
         alignV = static_cast<VAlign>(TopLeft);
@@ -753,7 +753,7 @@ protected:
 public:
     double interlin;     /*!< width factor, code 44 */
 private:
-    bool haveXAxis;
+    bool hasXAxisVec;
 };
 
 //! Class to handle vertex

src/libs/vdxf/libdxfrw/drw_header.cpp

@@ -40,6 +40,13 @@ void DRW_Header::addComment(const std::string &c){
 }
 
 void DRW_Header::parseCode(int code, dxfReader *reader){
+    if (nullptr == curr && 9 != code) {
+        DRW_DBG("invalid header code: ");
+        DRW_DBG(code);
+        DRW_DBG("\n");
+        return;
+    }
+
     switch (code) {
     case 9:
         curr = new DRW_Variant();

src/libs/vdxf/libdxfrw/drw_header.h

@@ -105,7 +105,7 @@ public:
 private:
     std::string comments;
     std::string name;
-    DRW_Variant* curr;
+    DRW_Variant* curr {nullptr};
     int version; //to use on read
 
     duint32 linetypeCtrl;

src/libs/vdxf/libdxfrw/drw_interface.h

@@ -24,7 +24,7 @@ QT_WARNING_DISABLE_GCC("-Wsuggest-final-types")
 QT_WARNING_DISABLE_GCC("-Wsuggest-final-methods")
 
 /**
- * Abstract class (interface) for comunicate dxfReader with the application.
+ * Abstract class (interface) for communicate dxfReader with the application.
  * Inherit your class which takes care of the entities in the
  * processed DXF file from this interface.
  *
@@ -179,6 +179,11 @@ public:
      */
     virtual void addComment(const char *) { }
 
+    /**
+     * Called for PLOTSETTINGS object definition.
+     */
+    virtual void addPlotSettings(const DRW_PlotSettings *) {}
+
     virtual void writeHeader(DRW_Header &) { }
     virtual void writeBlocks() { }
     virtual void writeBlockRecords() { }
@@ -188,6 +193,7 @@ public:
     virtual void writeTextstyles() { }
     virtual void writeVports() { }
     virtual void writeDimstyles() { }
+    virtual void writeObjects() {}
     virtual void writeAppId() { }
 };
 

src/libs/vdxf/libdxfrw/drw_objects.cpp

@@ -588,3 +588,28 @@ void DRW_ImageDef::parseCode(int code, dxfReader *reader){
         break;
     }
 }
+
+void DRW_PlotSettings::parseCode(int code, dxfReader *reader){
+    switch (code) {
+    case 5:
+        handle = static_cast<duint32>(reader->getHandleString());
+        break;
+    case 6:
+        plotViewName = reader->getUtf8String();
+        break;
+    case 40:
+        marginLeft = reader->getDouble();
+        break;
+    case 41:
+        marginBottom = reader->getDouble();
+        break;
+    case 42:
+        marginRight = reader->getDouble();
+        break;
+    case 43:
+        marginTop = reader->getDouble();
+        break;
+    default:
+        break;
+    }
+}

src/libs/vdxf/libdxfrw/drw_objects.h

@@ -35,7 +35,8 @@ namespace DRW {
          VPORT,
          BLOCK_RECORD,
          APPID,
-         IMAGEDEF
+         IMAGEDEF,
+         PLOTSETTINGS
      };
 
 //pending VIEW, UCS, APPID, VP_ENT_HDR, GROUP, MLINESTYLE, LONG_TRANSACTION, XRECORD,
@@ -591,6 +592,38 @@ public:
     std::map<std::string,std::string> reactors;
 };
 
+//! Class to handle plotsettings entries
+/*!
+*  Class to handle plot settings object entries
+*  @author baranovskiykonstantin@gmail.com
+*/
+class DRW_PlotSettings : public DRW_TableEntry {
+    SETOBJFRIENDS
+public:
+    DRW_PlotSettings() {
+        reset();
+    }
+
+    void reset(){
+        tType = DRW::PLOTSETTINGS;
+        marginLeft = 0.0;
+        marginBottom = 0.0;
+        marginRight = 0.0;
+        marginTop = 0.0;
+        DRW_TableEntry::reset();
+    }
+
+protected:
+    void parseCode(int code, dxfReader *reader);
+
+public:
+    UTF8STRING plotViewName {}; /*!< Plot view name, code 6 */
+    double marginLeft {0.0};    /*!< Size, in millimeters, of unprintable margin on left side of paper, code 40 */
+    double marginBottom {0.0};  /*!< Size, in millimeters, of unprintable margin on bottom side of paper, code 41 */
+    double marginRight {0.0};   /*!< Size, in millimeters, of unprintable margin on right side of paper, code 42 */
+    double marginTop {0.0};     /*!< Size, in millimeters, of unprintable margin on top side of paper, code 43 */
+};
+
 //! Class to handle AppId entries
 /*!
 *  Class to handle AppId symbol table entries

src/libs/vdxf/libdxfrw/intern/drw_dbg.cpp

@@ -17,7 +17,7 @@
 
 DRW_dbg *DRW_dbg::instance{nullptr};
 
-/*********private clases*************/
+/*********private classes*************/
 
 class print_debug : public DRW::DebugPrinter {
 public:
@@ -76,6 +76,14 @@ void DRW_dbg::print(const std::string &s){
     currentPrinter->printS(s);
 }
 
+void DRW_dbg::print(signed char i){
+    currentPrinter->printI(i);
+}
+
+void DRW_dbg::print(unsigned char i){
+    currentPrinter->printUI(i);
+}
+
 void DRW_dbg::print(int i){
     currentPrinter->printI(i);
 }

src/libs/vdxf/libdxfrw/intern/drw_dbg.h

@@ -46,6 +46,8 @@ public:
     Level getLevel() const;
     static DRW_dbg *getInstance();
     void print(const std::string &s);
+    void print(signed char i);
+    void print(unsigned char i);
     void print(int i);
     void print(unsigned int i);
     void print(long long int i);

src/libs/vdxf/libdxfrw/intern/dxfreader.cpp

@@ -70,6 +70,10 @@ bool dxfReader::readRec(int *codeData) {
         readDouble();
     else if (code < 481)
         readString();
+    else if( 999 == code && m_bIgnoreComments) {
+        readString();
+        return readRec( codeData);
+    }
     else if (code > 998 && code < 1009) //skip not used at the v2012
         readString();
     else if (code < 1060) //TODO this is a floating point double precision??

src/libs/vdxf/libdxfrw/intern/dxfreader.h

@@ -53,6 +53,7 @@ public:
     void setVersion(const std::string &v, bool dxfFormat){decoder.setVersion(v, dxfFormat);}
     void setCodePage(const std::string &c){decoder.setCodePage(c, true);}
     std::string getCodePage() const { return decoder.getCodePage();}
+    void setIgnoreComments(const bool bValue) {m_bIgnoreComments = bValue;}
 
 protected:
     virtual bool readCode(int *code) = 0; //return true if successful (not EOF)
@@ -74,6 +75,7 @@ protected:
 private:
     Q_DISABLE_COPY(dxfReader)
     DRW_TextCodec decoder;
+    bool m_bIgnoreComments {false};
 };
 
 class dxfReaderBinary : public dxfReader {

src/libs/vdxf/libdxfrw/libdxfrw.cpp

@@ -49,7 +49,7 @@ dxfRW::dxfRW(const char* name)
       dimstyleStd(),
       applyExt(false),
       writingBlock(),
-      elParts(128), //parts munber when convert ellipse to polyline
+      elParts(128), //parts number when convert ellipse to polyline
       blockMap(),
       imageDef(),
       currHandle()
@@ -80,17 +80,16 @@ void dxfRW::setDebug(DRW::DebugLevel lvl){
 
 bool dxfRW::read(DRW_Interface *interface_, bool ext){
     drw_assert(fileName.empty() == false);
-    bool isOk = false;
     applyExt = ext;
     std::ifstream filestr;
-    if ( interface_ == nullptr )
+    if (nullptr == interface_) {
-                return isOk;
+        return setError(DRW::BAD_UNKNOWN);
+    }
     DRW_DBG("dxfRW::read 1def\n");
     filestr.open (fileName.c_str(), std::ios_base::in | std::ios::binary);
-    if (!filestr.is_open())
+    if (!filestr.is_open() || !filestr.good()) {
-        return isOk;
+        return setError(DRW::BAD_OPEN);
-    if (!filestr.good())
+    }
-        return isOk;
 
     char line[22];
     char line2[22] = "AutoCAD Binary DXF\r\n";
@@ -113,7 +112,7 @@ bool dxfRW::read(DRW_Interface *interface_, bool ext){
         reader = new dxfReaderAscii(&filestr);
     }
 
-    isOk = processDxf();
+    bool isOk = processDxf();
     filestr.close();
     delete reader;
     reader = nullptr;
@@ -211,6 +210,52 @@ bool dxfRW::writeEntity(DRW_Entity *ent) {
     if (version > DRW::AC1014) {
         writer->writeInt16(370, DRW_LW_Conv::lineWidth2dxfInt(ent->lWeight));
     }
+    if (version >= DRW::AC1014) {
+        writeAppData(ent->appData);
+    }
+    return true;
+}
+
+bool dxfRW::writeAppData(const std::list<std::list<DRW_Variant>>& appData) {
+    for(const auto& group : appData) {
+        //Search for application name
+        bool found = false;
+
+        for(const auto& data : group) {
+            if(data.code == 102 && data.type == DRW_Variant::STRING) {
+                writer->writeString(102, "{" + *(data.content.s));
+                found = true;
+                break;
+            }
+        }
+
+        if(found) {
+            for(const auto& data : group) {
+                if(data.code == 102) {
+                    continue;
+                }
+
+                switch(data.type) {
+                    case DRW_Variant::STRING:
+                        writer->writeString(data.code, *(data.content.s));
+                        break;
+
+                    case DRW_Variant::INTEGER:
+                        writer->writeInt32(data.code, data.content.i);
+                        break;
+
+                    case DRW_Variant::DOUBLE:
+                        writer->writeDouble(data.code, data.content.i);
+                        break;
+
+                    default:
+                        break;
+                }
+            }
+
+            writer->writeString(102, "}");
+        }
+    }
     return true;
 }
 
@@ -1813,6 +1858,8 @@ bool dxfRW::writeObjects() {
        imageDef.pop_back();
     }
 
+    iface->writeObjects();
+
     return true;
 }
 
@@ -1865,49 +1912,99 @@ bool dxfRW::writeExtData(const std::vector<DRW_Variant*> &ed){
 
 bool dxfRW::processDxf() {
     DRW_DBG("dxfRW::processDxf() start processing dxf\n");
-    int code;
+    int code = -1;
-    bool more = true;
+    bool inSection = false;
-    std::string sectionstr;
+
-//    section = secUnknown;
+    reader->setIgnoreComments( false);
     while (reader->readRec(&code)) {
-        DRW_DBG(code); DRW_DBG(" processDxf\n");
+        DRW_DBG(code); DRW_DBG(" code\n");
-        if (code == 999) {
+        /* at this level we should only get:
-            header.addComment(reader->getString());
+         999 - Comment
-        } else if (code == 0) {
+         0 - SECTION or EOF
-            sectionstr = reader->getString();
+         2 - section name
-            DRW_DBG(sectionstr); DRW_DBG(" processDxf\n");
+         everything else between "2 - section name" and "0 - ENDSEC" is handled in process() methods
-            if (sectionstr == "EOF") {
+        */
-                return true;  //found EOF terminate
+        switch (code) {
-            }
+            case 999: // when DXF was created by libdxfrw, first record is a comment with dxfrw version info
-            if (sectionstr == "SECTION") {
+                header.addComment( reader->getString());
-                more = reader->readRec(&code);
+                continue;
-                DRW_DBG(code); DRW_DBG(" processDxf\n");
+
-                if (!more)
+            case 0:
-                    return false; //wrong dxf file
+                // ignore further comments, as libdxfrw doesn't support comments in sections
-                if (code == 2) {
+                reader->setIgnoreComments( true);
-                    sectionstr = reader->getString();
+                if (!inSection) {
-                    DRW_DBG(sectionstr); DRW_DBG("  processDxf\n");
+                    std::string sectionstr {reader->getString()};
-                //found section, process it
+
-                    if (sectionstr == "HEADER") {
+                    if ("SECTION" == sectionstr) {
-                        processHeader();
+                        DRW_DBG(sectionstr); DRW_DBG(" new section\n");
-                    } else if (sectionstr == "CLASSES") {
+                        inSection = true;
-//                        processClasses();
+                        continue;
-                    } else if (sectionstr == "TABLES") {
+                    }
-                        processTables();
+                    if ("EOF" == sectionstr) {
-                    } else if (sectionstr == "BLOCKS") {
+                        return true;  //found EOF terminate
-                        processBlocks();
-                    } else if (sectionstr == "ENTITIES") {
-                        processEntities(false);
-                    } else if (sectionstr == "OBJECTS") {
-                        processObjects();
                     }
                 }
-            }
+                else {
+                    // in case SECTION was unknown or not supported
+                    if ("ENDSEC" == reader->getString()) {
+                        inSection = false;
+                    }
+                }
+                break;
+
+            case 2:
+                if (inSection) {
+                    bool processed {false};
+                    std::string sectionname {reader->getString()};
+
+                    DRW_DBG(sectionname); DRW_DBG(" process section\n");
+                    if ("HEADER" == sectionname) {
+                        processed = processHeader();
+                    }
+                    else if ("TABLES" == sectionname) {
+                        processed = processTables();
+                    }
+                    else if ("BLOCKS" == sectionname) {
+                        processed = processBlocks();
+                    }
+                    else if ("ENTITIES" == sectionname) {
+                        processed = processEntities(false);
+                    }
+                    else if ("OBJECTS" == sectionname) {
+                        processed = processObjects();
+                    }
+                    else {
+                        //TODO handle CLASSES
+
+                        DRW_DBG("section unknown or not supported\n");
+                        continue;
+                    }
+
+                    if (!processed) {
+                        DRW_DBG("  failed\n");
+                        return setError(DRW::BAD_READ_SECTION);
+                    }
+
+                    inSection = false;
+                }
+                continue;
+
+            default:
+                // landing here means an unknown or not supported SECTION
+                inSection = false;
+                break;
         }
 /*    if (!more)
         return true;*/
     }
-    return true;
+
+    if (0 == code && "EOF" == reader->getString()) {
+        // in case the final EOF has no newline we end up here!
+        // this is caused by filestr->good() which is false for missing newline on EOF
+        return true;
+    }
+
+    return setError(DRW::BAD_UNKNOWN);
 }
 
 /********* Header Section *********/
@@ -1925,9 +2022,14 @@ bool dxfRW::processHeader() {
                 iface->addHeader(&header);
                 return true;  //found ENDSEC terminate
             }
-        } else header.parseCode(code, reader);
+            DRW_DBG("unexpected 0 code in header!\n");
+            return setError(DRW::BAD_READ_HEADER);
+        }
+
+        header.parseCode(code, reader);
     }
-    return true;
+
+    return setError(DRW::BAD_READ_HEADER);
 }
 
 /********* Tables Section *********/
@@ -1945,8 +2047,9 @@ bool dxfRW::processTables() {
             if (sectionstr == "TABLE") {
                 more = reader->readRec(&code);
                 DRW_DBG(code); DRW_DBG("\n");
-                if (!more)
+                if (!more) {
-                    return false; //wrong dxf file
+                    return setError(DRW::BAD_READ_TABLES); //wrong dxf file
+                }
                 if (code == 2) {
                     sectionstr = reader->getString();
                     DRW_DBG(sectionstr); DRW_DBG(" processHeader\n\n");
@@ -1976,7 +2079,8 @@ bool dxfRW::processTables() {
             }
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_TABLES);
 }
 
 bool dxfRW::processLType() {
@@ -2003,7 +2107,8 @@ bool dxfRW::processLType() {
         } else if (reading)
             ltype.parseCode(code, reader);
     }
-    return true;
+
+    return setError(DRW::BAD_READ_TABLES);
 }
 
 bool dxfRW::processLayer() {
@@ -2028,7 +2133,8 @@ bool dxfRW::processLayer() {
         } else if (reading)
             layer.parseCode(code, reader);
     }
-    return true;
+
+    return setError(DRW::BAD_READ_TABLES);
 }
 
 bool dxfRW::processDimStyle() {
@@ -2053,7 +2159,8 @@ bool dxfRW::processDimStyle() {
         } else if (reading)
             dimSty.parseCode(code, reader);
     }
-    return true;
+
+    return setError(DRW::BAD_READ_TABLES);
 }
 
 bool dxfRW::processTextStyle(){
@@ -2078,7 +2185,8 @@ bool dxfRW::processTextStyle(){
         } else if (reading)
             TxtSty.parseCode(code, reader);
     }
-    return true;
+
+    return setError(DRW::BAD_READ_TABLES);
 }
 
 bool dxfRW::processVports(){
@@ -2103,7 +2211,8 @@ bool dxfRW::processVports(){
         } else if (reading)
             vp.parseCode(code, reader);
     }
-    return true;
+
+    return setError(DRW::BAD_READ_TABLES);
 }
 
 bool dxfRW::processAppId(){
@@ -2128,7 +2237,8 @@ bool dxfRW::processAppId(){
         } else if (reading)
             vp.parseCode(code, reader);
     }
-    return true;
+
+    return setError(DRW::BAD_READ_TABLES);
 }
 
 /********* Block Section *********/
@@ -2149,7 +2259,8 @@ bool dxfRW::processBlocks() {
             }
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_BLOCKS);
 }
 
 bool dxfRW::processBlock() {
@@ -2177,7 +2288,8 @@ bool dxfRW::processBlock() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_BLOCKS);
 }
 
 
@@ -2187,69 +2299,74 @@ bool dxfRW::processEntities(bool isblock) {
     DRW_DBG("dxfRW::processEntities\n");
     int code;
     if (!reader->readRec(&code)){
-        return false;
+        return setError(DRW::BAD_READ_ENTITIES);
     }
     bool next = true;
     if (code == 0) {
-            nextentity = reader->getString();
+        nextentity = reader->getString();
     } else if (!isblock) {
-            return false;  //first record in entities is 0
+        return setError(DRW::BAD_READ_ENTITIES);  //first record in entities is 0
-   }
+    }
+    bool processed {false};
     do {
         if (nextentity == "ENDSEC" || nextentity == "ENDBLK") {
             return true;  //found ENDSEC or ENDBLK terminate
         } else if (nextentity == "POINT") {
-            processPoint();
+            processed = processPoint();
         } else if (nextentity == "LINE") {
-            processLine();
+            processed = processLine();
         } else if (nextentity == "CIRCLE") {
-            processCircle();
+            processed = processCircle();
         } else if (nextentity == "ARC") {
-            processArc();
+            processed = processArc();
         } else if (nextentity == "ELLIPSE") {
-            processEllipse();
+            processed = processEllipse();
         } else if (nextentity == "TRACE") {
-            processTrace();
+            processed = processTrace();
         } else if (nextentity == "SOLID") {
-            processSolid();
+            processed = processSolid();
         } else if (nextentity == "INSERT") {
-            processInsert();
+            processed = processInsert();
         } else if (nextentity == "LWPOLYLINE") {
-            processLWPolyline();
+            processed = processLWPolyline();
         } else if (nextentity == "POLYLINE") {
-            processPolyline();
+            processed = processPolyline();
         } else if (nextentity == "TEXT") {
-            processText();
+            processed = processText();
         } else if (nextentity == "MTEXT") {
-            processMText();
+            processed = processMText();
         } else if (nextentity == "HATCH") {
-            processHatch();
+            processed = processHatch();
         } else if (nextentity == "SPLINE") {
-            processSpline();
+            processed = processSpline();
         } else if (nextentity == "3DFACE") {
-            process3dface();
+            processed = process3dface();
         } else if (nextentity == "VIEWPORT") {
-            processViewport();
+            processed = processViewport();
         } else if (nextentity == "IMAGE") {
-            processImage();
+            processed = processImage();
         } else if (nextentity == "DIMENSION") {
-            processDimension();
+            processed = processDimension();
         } else if (nextentity == "LEADER") {
-            processLeader();
+            processed = processLeader();
         } else if (nextentity == "RAY") {
-            processRay();
+            processed = processRay();
         } else if (nextentity == "XLINE") {
-            processXline();
+            processed = processXline();
         } else {
-            if (reader->readRec(&code)){
+            if (!reader->readRec(&code)) {
-                if (code == 0)
+                return setError(DRW::BAD_READ_ENTITIES); //end of file without ENDSEC
-                    nextentity = reader->getString();
+            }
-            } else
+
-                return false; //end of file without ENDSEC
+            if (code == 0) {
+                nextentity = reader->getString();
+            }
+            processed = true;
         }
 
-    } while (next);
+    } while (processed);
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 bool dxfRW::processEllipse() {
@@ -2272,7 +2389,8 @@ bool dxfRW::processEllipse() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 bool dxfRW::processTrace() {
@@ -2295,7 +2413,8 @@ bool dxfRW::processTrace() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 bool dxfRW::processSolid() {
@@ -2318,7 +2437,8 @@ bool dxfRW::processSolid() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 bool dxfRW::process3dface() {
@@ -2339,7 +2459,8 @@ bool dxfRW::process3dface() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 bool dxfRW::processViewport() {
@@ -2360,7 +2481,8 @@ bool dxfRW::processViewport() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 bool dxfRW::processPoint() {
@@ -2381,7 +2503,8 @@ bool dxfRW::processPoint() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 bool dxfRW::processLine() {
@@ -2402,7 +2525,8 @@ bool dxfRW::processLine() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 bool dxfRW::processRay() {
@@ -2423,7 +2547,8 @@ bool dxfRW::processRay() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 bool dxfRW::processXline() {
@@ -2444,7 +2569,8 @@ bool dxfRW::processXline() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 bool dxfRW::processCircle() {
@@ -2467,7 +2593,8 @@ bool dxfRW::processCircle() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 bool dxfRW::processArc() {
@@ -2490,7 +2617,8 @@ bool dxfRW::processArc() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 bool dxfRW::processInsert() {
@@ -2511,7 +2639,8 @@ bool dxfRW::processInsert() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 bool dxfRW::processLWPolyline() {
@@ -2534,7 +2663,8 @@ bool dxfRW::processLWPolyline() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 bool dxfRW::processPolyline() {
@@ -2560,7 +2690,8 @@ bool dxfRW::processPolyline() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 bool dxfRW::processVertex(DRW_Polyline *pl) {
@@ -2586,7 +2717,8 @@ bool dxfRW::processVertex(DRW_Polyline *pl) {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 bool dxfRW::processText() {
@@ -2607,7 +2739,8 @@ bool dxfRW::processText() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 bool dxfRW::processMText() {
@@ -2629,7 +2762,8 @@ bool dxfRW::processMText() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 bool dxfRW::processHatch() {
@@ -2650,7 +2784,8 @@ bool dxfRW::processHatch() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 
@@ -2672,7 +2807,8 @@ bool dxfRW::processSpline() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 
@@ -2694,7 +2830,8 @@ bool dxfRW::processImage() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 
@@ -2753,7 +2890,8 @@ bool dxfRW::processDimension() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 bool dxfRW::processLeader() {
@@ -2774,7 +2912,8 @@ bool dxfRW::processLeader() {
             break;
         }
     }
-    return true;
+
+    return setError(DRW::BAD_READ_ENTITIES);
 }
 
 
@@ -2783,30 +2922,37 @@ bool dxfRW::processLeader() {
 bool dxfRW::processObjects() {
     DRW_DBG("dxfRW::processObjects\n");
     int code;
-    if (!reader->readRec(&code)){
+    if (!reader->readRec(&code) || 0 != code){
-        return false;
+        return setError(DRW::BAD_READ_OBJECTS); //first record in objects must be 0
     }
-    bool next = true;
+
-    if (code == 0) {
+    bool processed = false;
-            nextentity = reader->getString();
+    nextentity = reader->getString();
-    } else {
-            return false;  //first record in objects is 0
-   }
     do {
-        if (nextentity == "ENDSEC") {
+        if ("ENDSEC" == nextentity) {
             return true;  //found ENDSEC terminate
-        } else if (nextentity == "IMAGEDEF") {
-            processImageDef();
-        } else {
-            if (reader->readRec(&code)){
-                if (code == 0)
-                    nextentity = reader->getString();
-            } else
-                return false; //end of file without ENDSEC
         }
 
-    } while (next);
+        if ("IMAGEDEF" == nextentity) {
-    return true;
+            processed = processImageDef();
+        }
+        else if ("PLOTSETTINGS" == nextentity) {
+            processed = processPlotSettings();
+        }
+        else {
+            if (!reader->readRec(&code)) {
+                return setError(DRW::BAD_READ_OBJECTS); //end of file without ENDSEC
+            }
+
+            if (code == 0) {
+                nextentity = reader->getString();
+            }
+            processed = true;
+        }
+    }
+    while (processed);
+
+    return setError(DRW::BAD_READ_OBJECTS);
 }
 
 bool dxfRW::processImageDef() {
@@ -2827,6 +2973,41 @@ bool dxfRW::processImageDef() {
             break;
         }
     }
+
+    return setError(DRW::BAD_READ_OBJECTS);
+}
+
+bool dxfRW::processPlotSettings() {
+    DRW_DBG("dxfRW::processPlotSettings");
+    int code;
+    DRW_PlotSettings ps;
+    while (reader->readRec(&code)) {
+        DRW_DBG(code); DRW_DBG("\n");
+        switch (code) {
+        case 0: {
+            nextentity = reader->getString();
+            DRW_DBG(nextentity); DRW_DBG("\n");
+            iface->addPlotSettings(&ps);
+            return true;  //found new entity or ENDSEC, terminate
+        }
+        default:
+            ps.parseCode(code, reader);
+            break;
+        }
+    }
+
+    return setError(DRW::BAD_READ_OBJECTS);
+}
+
+bool dxfRW::writePlotSettings(DRW_PlotSettings *ent) {
+    writer->writeString(0, "PLOTSETTINGS");
+    writer->writeString(5, toHexStr(++entCount));
+    writer->writeString(100, "AcDbPlotSettings");
+    writer->writeUtf8String(6, ent->plotViewName);
+    writer->writeDouble(40, ent->marginLeft);
+    writer->writeDouble(41, ent->marginBottom);
+    writer->writeDouble(42, ent->marginRight);
+    writer->writeDouble(43, ent->marginTop);
     return true;
 }
 
@@ -2844,3 +3025,18 @@ std::string dxfRW::toHexStr(int n){
     return Convert.str();
 #endif
 }
+
+DRW::Version dxfRW::getVersion() const {
+    return version;
+}
+
+DRW::error dxfRW::getError() const
+{
+    return error;
+}
+
+bool dxfRW::setError(const DRW::error lastError)
+{
+    error = lastError;
+    return (DRW::BAD_NONE == error);
+}

src/libs/vdxf/libdxfrw/libdxfrw.h

@@ -71,9 +71,12 @@ public:
     DRW_ImageDef *writeImage(DRW_Image *ent, const std::string &name);
     bool writeLeader(DRW_Leader *ent);
     bool writeDimension(DRW_Dimension *ent);
-    void setEllipseParts(int parts){elParts = parts;} /*!< set parts munber when convert ellipse to polyline */
+    void setEllipseParts(int parts){elParts = parts;} /*!< set parts number when convert ellipse to polyline */
+    bool writePlotSettings(DRW_PlotSettings *ent);
 
     std::string ErrorString() const;
+    DRW::Version getVersion() const;
+    DRW::error getError() const;
 
 private:
     Q_DISABLE_COPY(dxfRW)
@@ -116,6 +119,7 @@ private:
     bool processImageDef();
     bool processDimension();
     bool processLeader();
+    bool processPlotSettings();
 
 //    bool writeHeader();
     bool writeEntity(DRW_Entity *ent);
@@ -124,9 +128,13 @@ private:
     bool writeObjects();
     bool writeExtData(const std::vector<DRW_Variant*> &ed);
     static std::string toHexStr(int n);//RLZ removeme
+    bool writeAppData(const std::list<std::list<DRW_Variant>> &appData);
+
+    bool setError(const DRW::error lastError);
 
 private:
     DRW::Version version;
+    DRW::error error {DRW::BAD_NONE};
     std::string fileName;
     std::string codePage;
     bool binFile;
@@ -141,7 +149,7 @@ private:
     bool dimstyleStd;
     bool applyExt;
     bool writingBlock;
-    int elParts;  /*!< parts munber when convert ellipse to polyline */
+    int elParts;  /*!< parts number when convert ellipse to polyline */
     std::unordered_map<std::string,int> blockMap;
     std::vector<DRW_ImageDef*> imageDef;  /*!< imageDef list */
 

src/libs/vdxf/libdxfrw/main_doc.h

@@ -5,9 +5,9 @@
  * This manual documents the use of <b>libdxfrw</b>.
  * 
  * With libdxfrw you can read and write several parts of a dxf files.<p>
- * Dxf files can be written in assci and binary form, both are supported.<p>
+ * Dxf files can be written in ascii and binary form, both are supported.<p>
  * 
  * the complete documentation and examples are pending to free time,
- * but to start see DRW_Interface, dxfRW clases
+ * but to start see DRW_Interface, dxfRW classes
   */