[Users] Vector layers and print preview

[Alexandre Dube]

Andreas,

   I tried and updated your patch a little.  It solves the issue for 
me.  See :
     https://github.com/geoext/geoext/pull/33

Regards,

Alexandre


On 12-01-14 06:10 PM, Andreas Hocevar wrote:
> Hi,
>
> can you try if this patch solves the issue:
>
> --- a/lib/GeoExt/widgets/PrintMapPanel.js
> +++ b/lib/GeoExt/widgets/PrintMapPanel.js
> @@ -193,7 +193,20 @@ GeoExt.PrintMapPanel = Ext.extend(GeoExt.MapPanel, {
>           this.layers = [];
>           var layer;
>           Ext.each(this.sourceMap.layers, function(layer) {
> -            layer.getVisibility() === true&&  this.layers.push(layer.clone());
> +            if (layer.getVisibility() === true) {
> +                if (layer instanceof OpenLayers.Vector) {
> +                    var features = layer.features,
> +                        clonedFeatures = new Array(features.length);
> +                    for (var i=0, ii=features.length; i<ii; ++i) {
> +                        clonedFeatures[i] = features[i].clone();
> +                    }
> +                    this.layers.push(new OpenLayers.Layer.Vector(layer.name, {
> +                        features: clonedFeatures
> +                    }));
> +                } else {
> +                    this.layers.push(layer.clone());
> +                }
> +            }
>           }, this);
>
>           this.extent = this.sourceMap.getExtent();
>
> Andreas.
>
> On Sat, Jan 14, 2012 at 11:02 PM, Alexandre Lessard
> <alexandrel at solutionglobale.com>  wrote:
>> Hi again,
>> Sorry for the lack of info.
>>
>> The printPreview uses the printMapPanel widget to create a copy of the
>> source map,  the printMapPanel is initialized in the initComponent function
>> of printPreview.js.
>> . While doing the copy it uses the clone function of the layers.
>>
>> Here the printMapPanel code link at line 196 where there is the cloning :
>> https://github.com/geoext/geoext/blob/master/lib/GeoExt/widgets/PrintMapPanel.js#L196
>>
>> Hope this is enough.
>> Thanks Again
>>
>> Alexandre
>>
>>
>> Le 2012-01-14 à 16:08, Andreas Hocevar a écrit :
>>
>> Hi,
>>
>> can you please enlighten me how
>> http://trac.osgeo.org/openlayers/ticket/2749 relates to the Print
>> Preview ux? To encode vector layers for printing, GeoExt does not
>> clone them and also doesn't serialize properties other than features
>> and styles, so I don't immediately see where that ticket could cause
>> the Print Preview ux to not work.
>>
>> Andreas.
>>
>> On Fri, Jan 13, 2012 at 5:20 PM, Lessard Alexandre
>> <alexandrel at solutionglobale.com>  wrote:
>>
>> Hi everyone,
>>
>> I'm looking to use the "Print Preview" ux, but Someone told me that
>>
>> there was a big ticket about cloning vector layers with protocols and
>>
>> most of my vector layers have protocols. The ticket has already one year
>>
>> and a half and it's still not resolved, so I wanted to know if any of
>>
>> you have found a way around that problem?
>>
>>
>> Here's the link to the openlayers ticket about the problem :
>>
>>
>> http://trac.osgeo.org/openlayers/ticket/2749
>>
>>
>> Thanks a lot!
>>
>>
>> Alexandre Lessard
>>
>>
>>
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>>
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>>
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>>
>>
>>
>>
>> --
>> Andreas Hocevar
>> OpenGeo - http://opengeo.org/
>> Expert service straight from the developers.
>>
>>
>
>


-- 
Alexandre Dubé
Mapgears
www.mapgears.com