[Qgis-developer] Multiple styles per layer

[Andreas Neumann]

Hi Martin,

Does it support a change of renderer? E.g. start with a simple fill 
renderer in one styles and then change to a categorized or rule-based 
renderer in another style?

It works fine for me if I stay within one renderer, but kind of acts 
weird if I start changing renderers in the different styles.

Cool to hear about the presets/style choice in print composer and 
support in QGIS server!

Andreas

On 07.01.2015 17:33, Martin Dobias wrote:
> Hi Andreas
>
> On Wed, Jan 7, 2015 at 11:15 PM, Andreas Neumann <a.neumann at carto.net 
> <mailto:a.neumann at carto.net>> wrote:
>
>     Hi Martin,
>
>     I just saw your recent commit for support of multiple styles - but
>     I don't fully get it how it works. I can add a new style and can
>     switch to another style, but it seems whenever I change the
>     symbology, it resets all styles at once?
>
>     Or maybe I don't fully get it how it is supposed to work.
>
>
> When you change symbology, only the currently active style should be 
> modified - the others should stay the same (if not then there's a bug 
> and please let me know). This should work: 1. add a layer, 2. add a 
> new style to it (will get activated), 3. change symbology, 4. switch 
> back to previous style - you should see the previous symbology.
>
> The idea is to have the possibility to define several styles for a 
> layer - and quickly switch between them. Before you would need to save 
> and then load the styles from QML files.
>
> As the style incorporates not only rendering appearance, but also 
> other things like forms, so you could define different forms for 
> different styles. Endless new opportunities :-)
>
>     BTW: cool feature - would be cool to also expose the multiple
>     styles in QGIS server (e.g. to support color and black/white
>     styles) for the same layer.
>
>
> Coming soon :-)
>
> Cheers
> Martin
>

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