Legend MapServer 7.0.1 Label OFFSET is not supported anymore

[tbonfort]

After MapServer update from version 6.4 to version 7.0 or 7.01 OFFSET in LEGEND Block does not work anymore.

MapServer 6.4
In my mapfile, the LABEL of my LEGEND is adjusted by specifying an OFFSET in the LABEL-block.

LEGEND-block in the Mapfile (Mapserver 6.4.1):

• The OFFSET of 0 -10 centers the LABEL of the LEGEND: legend_mapserv_6_offset.png
  
• Without the OFFSET in the LABEL-Block it looks like this (label is a not in the center, but at the bottom: legend_mapserv_6_without_offset.png
  

LEGEND
    STATUS ON
    KEYSIZE 30 30
    KEYSPACING 5 3  
    LABEL
        TYPE TRUETYPE
        FONT 'arial' 
        SIZE 10
        COLOR 119 179 0
        OFFSET 0 -10
    END 
END 

MapServer 7.0.1

• After the update to version 7 the OFFSET in the LEGEND is ignored and the label no longer appears in the center: legend_mapserv_7_offset.png

LEGEND
    STATUS ON
    KEYSIZE 30 30
    KEYSPACING 5 3  
    LABEL
        TYPE TRUETYPE
        FONT 'arial' 
        SIZE 10
        COLOR 119 179 0
        OFFSET 0 -10
    END 
END  

I tested this with the MapServer 7.0.1 on the new OSGeo-Live.

[tbonfort]

I've added a tentative fix to the current PR, please check it out

[jmckenna]

@astroidex can you confirm that thomas' fix posted here, works in your case?

[jmckenna]

@astroidex can you confirm that thomas' fix posted here, works in your case? Or, can you post the sample mapfile + data, so I can test?

[jmckenna]

@astroidex can you confirm that thomas' fix posted here, works in your case? Or, can you post the sample mapfile + data, so I can test? (I'd like to get this included in the MapServer 7.0.2 release this week)

[astroidex]

@jmkenna I added the mapfiles here (coy of your demo mapfile) #5332
Thanks for pushing it. Have to find time to compile & test...

[tbonfort]

applied to branch-7-0, alongside test

[astroidex]

OFFSET works now, but it does not position the text regularly. The distance between the texte rows is sometimes different.

See images

• sgk_ms6 4 3 - how it is displayed in MapServer 6.4.3

• sgk_ms7 0 2 - how it is displayed in MapServer 7.0.2

[honoref]

I have the same vertical offset between icons and text. It's because height of texts are calculate the more short arround the text, and with differents texts, high are differents.
character g is heigher than character o. And even if the character 8 as the same height than g, they are not align o8g. Mapserver align each text on the top.