dxftblrd.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */
 
 
#include "dxftblrd.hxx"
 
//----------------------------------DXFLType-----------------------------------
 
DXFLType::DXFLType()
    : pSucc(nullptr)
    , nFlags(0)
    , nDashCount(0)
    , fPatternLength(0.0)
    , fDash{0.0}
{
}
 
void DXFLType::Read(DXFGroupReader & rDGR)
{
    tools::Long nDashIndex=-1;
 
    while (rDGR.Read()!=0)
    {
        switch (rDGR.GetG())
        {
        case  2:
            m_sName = rDGR.GetS();
            break;
        case  3:
            m_sDescription = rDGR.GetS();
            break;
        case 70:
            nFlags=rDGR.GetI();
            break;
        case 73:
            if (nDashIndex!=-1)
            {
                rDGR.SetError();
                return;
            }
            nDashCount=rDGR.GetI();
            if (nDashCount>DXF_MAX_DASH_COUNT)
            {
                nDashCount=DXF_MAX_DASH_COUNT;
            }
            nDashIndex=0;
            break;
        case 40: fPatternLength=rDGR.GetF(); break;
        case 49:
            if (nDashCount==-1)
            {
                rDGR.SetError();
                return;
            }
            if (nDashIndex < nDashCount)
            {
                if (nDashIndex < 0)
                {
                    rDGR.SetError();
                    return;
                }
                fDash[nDashIndex++] = rDGR.GetF();
            }
            break;
        }
    }
}
 
//----------------------------------DXFLayer-----------------------------------
 
DXFLayer::DXFLayer()
{
    pSucc=nullptr;
    nFlags=0;
    nColor=-1;
}
 
void DXFLayer::Read(DXFGroupReader & rDGR)
{
    while (rDGR.Read()!=0)
    {
        switch(rDGR.GetG())
        {
        case  2:
            m_sName = rDGR.GetS();
            break;
        case  6:
            m_sLineType = rDGR.GetS();
            break;
        case 70:
            nFlags=rDGR.GetI();
            break;
        case 62:
            nColor=rDGR.GetI();
            break;
        }
    }
}
 
//----------------------------------DXFStyle-----------------------------------
 
DXFStyle::DXFStyle()
{
    pSucc=nullptr;
    nFlags=0;
    fHeight=0.0;
    fWidthFak=1.0;
    fOblAngle=0.0;
    nTextGenFlags=0;
    fLastHeightUsed=0.0;
}
 
void DXFStyle::Read(DXFGroupReader & rDGR)
{
    while (rDGR.Read()!=0)
    {
        switch(rDGR.GetG())
        {
        case  2:
            m_sName = rDGR.GetS();
            break;
        case  3:
            m_sPrimFontFile = rDGR.GetS();
            break;
        case  4:
            m_sBigFontFile = rDGR.GetS();
            break;
        case 70:
            nFlags=rDGR.GetI();
            break;
        case 40:
            fHeight=rDGR.GetF();
            break;
        case 41:
            fWidthFak=rDGR.GetF();
            break;
        case 42:
            fLastHeightUsed=rDGR.GetF();
            break;
        case 50:
            fOblAngle=rDGR.GetF();
            break;
        case 71:
            nTextGenFlags=rDGR.GetI();
            break;
        }
    }
}
 
//----------------------------------DXFVPort-----------------------------------
 
DXFVPort::DXFVPort()
    : pSucc(nullptr)
    , nFlags(0)
    , fMinX(0.0)
    , fMinY(0.0)
    , fMaxX(0.0)
    , fMaxY(0.0)
    , fCenterX(0.0)
    , fCenterY(0.0)
    , fSnapBaseX(0.0)
    , fSnapBaseY(0.0)
    , fSnapSpacingX(0.0)
    , fSnapSpacingY(0.0)
    , fGridX(0.0)
    , fGridY(0.0)
    , aDirection(DXFVector(0.0, 0.0, 1.0))
    , fHeight(0.0)
    , fAspectRatio(0.0)
    , fLensLength(0.0)
    , fFrontClipPlane(0.0)
    , fBackClipPlane(0.0)
    , fTwistAngle(0.0)
    , nStatus(0)
    , nID(0)
    , nMode(0)
    , nCircleZoomPercent(0)
    , nFastZoom(0)
    , nUCSICON(0)
    , nSnap(0)
    , nGrid(0)
    , nSnapStyle(0)
    , nSnapIsopair(0)
{
}
 
void DXFVPort::Read(DXFGroupReader & rDGR)
{
    while (rDGR.Read()!=0)
    {
        switch(rDGR.GetG())
        {
        case  2:
            m_sName = rDGR.GetS();
            break;
        case 10: fMinX=rDGR.GetF(); break;
        case 11: fMaxX=rDGR.GetF(); break;
        case 12: fCenterX=rDGR.GetF(); break;
        case 13: fSnapBaseX=rDGR.GetF(); break;
        case 14: fSnapSpacingX=rDGR.GetF(); break;
        case 15: fGridX=rDGR.GetF(); break;
        case 16: aDirection.fx=rDGR.GetF(); break;
        case 17: aTarget.fx=rDGR.GetF(); break;
        case 20: fMinY=rDGR.GetF(); break;
        case 21: fMaxY=rDGR.GetF(); break;
        case 22: fCenterY=rDGR.GetF(); break;
        case 23: fSnapBaseY=rDGR.GetF(); break;
        case 24: fSnapSpacingY=rDGR.GetF(); break;
        case 25: fGridY=rDGR.GetF(); break;
        case 26: aDirection.fy=rDGR.GetF(); break;
        case 27: aTarget.fy=rDGR.GetF(); break;
        case 36: aDirection.fz=rDGR.GetF(); break;
        case 37: aTarget.fz=rDGR.GetF(); break;
        case 40: fHeight=rDGR.GetF(); break;
        case 41: fAspectRatio=rDGR.GetF(); break;
        case 42: fLensLength=rDGR.GetF(); break;
        case 43: fFrontClipPlane=rDGR.GetF(); break;
        case 44: fBackClipPlane=rDGR.GetF(); break;
        case 51: fTwistAngle=rDGR.GetF(); break;
        case 68: nStatus=rDGR.GetI(); break;
        case 69: nID=rDGR.GetI(); break;
        case 70: nFlags=rDGR.GetI(); break;
        case 71: nMode=rDGR.GetI(); break;
        case 72: nCircleZoomPercent=rDGR.GetI(); break;
        case 73: nFastZoom=rDGR.GetI(); break;
        case 74: nUCSICON=rDGR.GetI(); break;
        case 75: nSnap=rDGR.GetI(); break;
        case 76: nGrid=rDGR.GetI(); break;
        case 77: nSnapStyle=rDGR.GetI(); break;
        case 78: nSnapIsopair=rDGR.GetI(); break;
        }
    }
}
 
//----------------------------------DXFTables----------------------------------
 
 
DXFTables::DXFTables()
{
    pLTypes=nullptr;
    pLayers=nullptr;
    pStyles=nullptr;
    pVPorts=nullptr;
}
 
 
DXFTables::~DXFTables()
{
    Clear();
}
 
 
void DXFTables::Read(DXFGroupReader & rDGR)
{
    DXFLType * * ppLT, * pLT;
    DXFLayer * * ppLa, * pLa;
    DXFStyle * * ppSt, * pSt;
    DXFVPort * * ppVP, * pVP;
 
    ppLT=&pLTypes;
    while(*ppLT!=nullptr) ppLT=&((*ppLT)->pSucc);
 
    ppLa=&pLayers;
    while(*ppLa!=nullptr) ppLa=&((*ppLa)->pSucc);
 
    ppSt=&pStyles;
    while(*ppSt!=nullptr) ppSt=&((*ppSt)->pSucc);
 
    ppVP=&pVPorts;
    while(*ppVP!=nullptr) ppVP=&((*ppVP)->pSucc);
 
    for (;;) {
        while (rDGR.GetG()!=0) rDGR.Read();
        if (rDGR.GetS() == "EOF" ||
            rDGR.GetS() == "ENDSEC") break;
        else if (rDGR.GetS() == "LTYPE") {
            pLT=new DXFLType;
            pLT->Read(rDGR);
            *ppLT=pLT;
            ppLT=&(pLT->pSucc);
        }
        else if (rDGR.GetS() == "LAYER") {
            pLa=new DXFLayer;
            pLa->Read(rDGR);
            *ppLa=pLa;
            ppLa=&(pLa->pSucc);
        }
        else if (rDGR.GetS() == "STYLE") {
            pSt=new DXFStyle;
            pSt->Read(rDGR);
            *ppSt=pSt;
            ppSt=&(pSt->pSucc);
        }
        else if (rDGR.GetS() == "VPORT") {
            pVP=new DXFVPort;
            pVP->Read(rDGR);
            *ppVP=pVP;
            ppVP=&(pVP->pSucc);
        }
        else rDGR.Read();
    }
}
 
 
void DXFTables::Clear()
{
    DXFLType * pLT;
    DXFLayer * pLa;
    DXFStyle * pSt;
    DXFVPort * pVP;
 
    while (pStyles!=nullptr) {
        pSt=pStyles;
        pStyles=pSt->pSucc;
        delete pSt;
    }
    while (pLayers!=nullptr) {
        pLa=pLayers;
        pLayers=pLa->pSucc;
        delete pLa;
    }
    while (pLTypes!=nullptr) {
        pLT=pLTypes;
        pLTypes=pLT->pSucc;
        delete pLT;
    }
    while (pVPorts!=nullptr) {
        pVP=pVPorts;
        pVPorts=pVP->pSucc;
        delete pVP;
    }
}
 
 
DXFLType * DXFTables::SearchLType(std::string_view rName) const
{
    DXFLType * p;
    for (p=pLTypes; p!=nullptr; p=p->pSucc) {
        if (rName == p->m_sName) break;
    }
    return p;
}
 
 
DXFLayer * DXFTables::SearchLayer(std::string_view rName) const
{
    DXFLayer * p;
    for (p=pLayers; p!=nullptr; p=p->pSucc) {
        if (rName == p->m_sName) break;
    }
    return p;
}
 
 
DXFVPort * DXFTables::SearchVPort(std::string_view rName) const
{
    DXFVPort * p;
    for (p=pVPorts; p!=nullptr; p=p->pSucc) {
        if (rName == p->m_sName) break;
    }
    return p;
}
 
 
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