[QGIS-trac] [Quantum GIS] #1386: Enhanced Map Tips through Macro Language/Operators

[Quantum GIS]

#1386: Enhanced Map Tips through Macro Language/Operators
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   Reporter:  neumann                          |              Owner:  nobody       
       Type:  enhancement                      |             Status:  new          
   Priority:  minor: annoyance or enhancement  |          Milestone:  Version 1.0.0
  Component:  Build/Install                    |            Version:  HEAD         
   Keywords:                                   |   Platform_version:               
   Platform:  Debian                           |           Must_fix:  No           
Status_info:  0                                |  
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 Map Tips are a useful feature to display attribute data on mouse-over as
 tooltips. However, they can only display a single data column. It would be
 very useful to enhance this feature with a simple macro language or
 operators, which would allow simple calculations and concatenations of
 multiple data columns.

 Applications would be the concatenation of several columns towards an
 address: concatenate street, house-nr, zip-code, city, etc. into a single
 address string. Another application would be to calculate a new value
 based on 2 or more other data-columns.

 Operators would include simple math operators and at least concatenation.
 Since QGIS already supports python, it could be useful to use python
 compatible syntax for this macro-language/operators.

 It would also be useful to display multi-line tooltips. "\n" could trigger
 a new-line. At most, tooltips could also display image data, such as a
 small photo thumbnail.

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Ticket URL: <https://trac.osgeo.org/qgis/ticket/1386>
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