DRW_MText::parseDwg()

gistfile1.cpp

bool DRW_MText::parseDwg(DRW::Version version, dwgBuffer *buf){
    bool ret = DRW_Entity::parseDwg(version, buf);
    if (!ret)
        return ret;
    DBG("\n***************************** parsing mtext *********************************************\n");
    
    basePoint.x = buf->getBitDouble(); /* Insertion pt 3BD 10 - First picked point. */
    basePoint.y = buf->getBitDouble(); /* (Location relative to text depends */
    basePoint.z = buf->getBitDouble(); /* on attachment point (71) */
    extPoint.x = buf->getBitDouble(); /* Extrusion 3BD 210 Undocumented; */
    extPoint.y = buf->getBitDouble(); /* appears in DXF and entget, but ACAD */
    extPoint.z = buf->getBitDouble(); /* doesn't even bother to adjust it to unit length. */
    
    DRW_Coord x_axis;
    x_axis.x = buf->getBitDouble(); /* X-axis dir 3BD 11 */
    x_axis.y = buf->getBitDouble(); /* Apparently the text x-axis vector. */
    x_axis.z = buf->getBitDouble(); /* ACAD maintains it as a unit vector. */
    /** @todo compute the angle from this */
    
    widthscale = buf->getBitDouble(); /* Rect width BD 41 */
    
    if (version > DRW::AC1018) {//2007+
        /* Rect height BD 46 Reference rectangle height. */
        /** @todo */buf->getBitDouble();
    }
    
    height = buf->getBitDouble();/* Text height BD 40 Undocumented */
    textgen = buf->getBitShort(); /* Attachment BS 71 Similar to justification; */
    
    /* Drawing dir BS 72 Left to right, etc.; see DXF doc */
    buf->getBitShort();
    
    /* Extents ht BD Undocumented and not present in DXF or entget */
    buf->getBitDouble();
    
    /* Extents wid BD Undocumented and not present in DXF or entget The extents
    rectangle, when rotated the same as the text, fits the actual text image on
    the screen (altough we've seen it include an extra row of text in height). */
    buf->getBitDouble();
    
    /* Text TV 1 All text in one long string (without '\n's 3 for line wrapping).
    ACAD seems to add braces ({ }) and backslash-P's to indicate paragraphs
    based on the "\r\n"'s found in the imported file. But, all the text is in
    this one long string -- not broken into 1- and 3-groups as in DXF and
    entget. ACAD's entget breaks this string into 250-char pieces (not 255 as
    doc'd) – even if it's mid-word. The 1-group always gets the tag end;
    therefore, the 3's are always 250 chars long. */
    text = buf->getVariableUtf8Text(); /* Text value TV 1 */
    
    if (version > DRW::AC1014) {//2000+
        buf->getBitShort();/* Linespacing Style BS 73 */
        buf->getBitDouble();/* Linespacing Factor BD 44 */
        buf->getBit();/* Unknown bit B */
    }
    
    if (version > DRW::AC1015) {//2004+
        
        /* Background flags BL 0 = no background, 1 = background fill, 2 =background
        fill with drawing fill color. */
        dint32 bk_flags = buf->getBitLong(); /** @todo add to DRW_MText */
        if ( bk_flags == 1 )
        {
            /* Background scale factor BL  Present if background flags = 1, default = 1.5*/
            buf->getBitLong();
            
            /* Background color CMC Present if background flags = 1 */
            /** @todo buf->getCMC */
            
            /* Background transparency BL Present if background flags = 1 */
            buf->getBitLong();
        }
    }
    
    /* Common Entity Handle Data */
    ret = DRW_Entity::parseDwgEntHandle(version, buf);
    if (!ret)
        return ret;
    
    styleH = buf->getHandle(); /* H 7 STYLE (hard pointer) */
    
    /* CRC X --- */
    return buf->isGood();
}