RFC 49 implementation

[tbonfort]

ticket to track changes with regards to rfc 49:

http://mapserver.org/development/rfc/ms-rfc-49.html

[tbonfort]

commited in r8453

[szigeti]

objection! The proposed solution in r8453 ignores the case when (label==NULL)

 Segmentation fault.
0x08065df8 in msAddLabel (map=0x816ae48, layerindex=6, classindex=0, 
    shapeindex=-1, tileindex=-1, point=0xbfd4b2e0, labelpath=0x0, 
    string=0x8145b92 " ", featuresize=1, label=0x0) at maplabel.c:322
322	    if((label->maxscaledenom != -1) && (map->scaledenom >= label->maxscaledenom))

[szigeti]

trivial patch

[tbonfort]

can you confirm that this was triggered either with an embedded legend or scalebar, or by using the mapscript drawpoint function.

if so, I would suspect r8483 fixes the segfault

[szigeti]

it was within an embedded scalebar:

(gdb) bt
#0  0x08067398 in msAddLabel ()
#1  0x080fd90c in msEmbedScalebar ()
#2  0x0807c41c in msDrawMap ()
#3  0x080502cd in main ()

[tamas]

Also fixed segfault in r8492 when classObj.numstyles = 0

[tbonfort]

documentation updated

[aalbarello]

mapcopy.c lacks the required lines needed to copy these settings at style and label level, that is

    MS_COPYSTELEM(minscaledenom);
    MS_COPYSTELEM(maxscaledenom);

is missing from msCopyLabel and

    MS_COPYSTELEM(outlinewidth);
    MS_COPYSTELEM(minscaledenom);
    MS_COPYSTELEM(maxscaledenom);

is missing from msCopyStyle.

Regards,

Andreas

[tbonfort]

also missing label align and maxlength

fixed in r9395