[Chameleon] Custom Widget, problem showing Point Layer

[Julien-Samuel Lacroix]

Hi,

I tested your widget and got it working by adding:

         $this->SetNavCommand('UUW');

in the UUW function.:
function UUW()
{
         // set the language file
         $this->mszLanguageResource = dirname(__FILE__).'/UUW.dbf';

         // invoke constructor of parent
         parent::NavTool();
         $this->SetNavCommand('UUW');

         $this->maAttributes['COORDS'] =
             new StringAttribute( 'COORDS', true, array( 'aa' ) );


         // set the description for this widget
         $this->szWidgetDescription = <<<EOT
             This is the UUW.
EOT;
         // set the maturity level
         $this->mnMaturityLevel = MATURITY_ALPHA;

         // end constructor
     }


Julien

Ines wrote:
> Hello, I'm trying to show a point layer with  my custom widget but I have
> problems to do it. My widget don´t do nothing.
> I created a point layer in the file.map with the status "On" or "Default"
> and it is working very well (It apeears in the legend and show me the point
> on the map). But I need to make this point dynamic with the custom widget,
> because the latitude and longitude will be changing (dynamic).
> 
> When I click on the button of my widget, the web page (my application) don't
> do nothing. I don´t know how to solve this problem. Perhaps I´m doing
> something wrong in the widget but I don´t know what. I'm going crazy with
> the custom widget and I really need to solve this problem. I really need
> your help.
> 
> Well, I need to make the point layer appears in the map when I click the
> buttom of the widget. And I need to have the point layer status "Off" when I
> run the application for first time, and then, set to "On" just when I click
> the button of the widget.
> 
> I´m show you:
> 1) The point Layer in the file.map
> 2) The code in the widget
> 3) The cwc2 tag in the template.html
> 
> 1) The point Layer in the file.map
> 
> LAYER
>   	NAME "pointlatlon"
> 	PROJECTION
>       "init=epsg:4326"
>     END
> 	TYPE POINT
> 	STATUS OFF
> 	FEATURE
> 		POINTS
> 			-85.933333 13
> 		END
> 		TEXT "My Place"
> 	END
> 	CLASS
> 		COLOR 255 0 0
> 		OUTLINECOLOR 255 255 255
> 		SYMBOL "circle"
> 		SIZE 10
> 
> 		LABEL
> 			POSITION AUTO
> 			COLOR 98 223 45
> 			OUTLINECOLOR 255 255 255
> 		END
> 	 END
>    END
> ----------------------------------------------------------------------------
> ------------
> 
> 2) The code in the widget
> 
> 
> a) ------------------"UUW" Widget
> Class--------------------------------------------------
> 
> // inherit from the NavTool
> include_once(dirname(__FILE__)."/../NavTool.php");
> include( 'utils.inc.php' );
> 
> /**
> 
> ____________________________________________________________________________
> _
>  |
>  | "UUW" Widget Class
> 
> |___________________________________________________________________________
> __
> 
>  **/
> class UUW extends NavTool
> {
>     // define member vars
>     // i.e.  var $mszMyVariable;
> 	var $x;
> 	var $y;
> 	var $mszCoords;
> 	var $poLayer;
> 	var	$pt;
>    	var	$ln;
> 	var	$shp;
>    	var	$pt;
>     var	$ln;
>     var	$shp;
> 
> 
> //	var	$mszReport;
> 
>     /////////  ADD MEMBER VARS HERE  /////////
> 
>     /**
> 
> _________________________________________________________________________
>      |
>      | Constructor: "UUW" Widget Class
> 
> |_________________________________________________________________________
> 
>      **/
>     function UUW()
>     {
>         // set the language file
>         $this->mszLanguageResource = dirname(__FILE__).'/UUW.dbf';
> 
>         // invoke constructor of parent
>         parent::NavTool();
> 
> 
> 
>         /////////  ADD ATTRIBUTES HERE  /////////
> 
> 
> 		$this->maAttributes['COORDS'] =
>             new StringAttribute( 'COORDS', true, array( 'aa' ) );
> 
>         // set the description for this widget
>         $this->szWidgetDescription = <<<EOT
> This is the UUW.
> EOT;
>         // set the maturity level
>         $this->mnMaturityLevel = MATURITY_ALPHA;
> 
>     // end constructor
>     }
> 
> b) ------------------function
> InitDefaults()--------------------------------------------
> 
> function InitDefaults()
>     {
>         // init defaults for parent
>         parent::InitDefaults();
> 
>         /////////  ADD CODE HERE IF NECESSARY /////////
> 
> 
> 		$this->mszCoords = isset( $this->maParams['COORDS'] )?
> 
>             $this->maParams['COORDS'] : '';
> 
> 
> 
>     // end InitDefaults function.
>     }
> 
> 
> c) ------------------function
> ParseURL()---------------------------------------------------
> 
> function  ParseURL()
>     {
>         // execute parent function
>         parent::ParseURL();
> 
>         /////////  ADD CODE HERE IF NECESSARY /////////
> 		// work some magic
> if ( $this->isVarSet( "NAV_CMD" ) &&
>                             $this->getVar( "NAV_CMD" ) == 'UUW' )
> {
> 
> 	$this->x = -85;
> 	$this->y = 13;
> 
> 	if ( $this->mszCoords == 'aa')
> 	{
> 		$poLayer = $this->moMapObject->oMap->getLayerByName('pointlatlon');
> 		$pt = ms_newPointObj();
>    		$ln = ms_newLineObj();
> 		$shp = ms_newShapeObj(MS_SHAPE_POINT);
>    		$pt->setXY($this->x,$this->y);
>     		$ln->add($pt);
> 	    	$shp->add($ln);
>     		$poLayer->addFeature($shp);
> 
> 	}
> 
> }
> 
>         // return success
>         return true;
>     }
> 
> 
> d) ------------------function
> DrawPublish()-----------------------------------------------
> 
> 
> function DrawPublish()
>     {
>         // init vars
>         $szReturn = "Search by scientific name <input type='text'
> name='textfield'>";
> 
>         // execute parent
>         $szReturn .= parent::DrawPublish();
> 
>         /////////  ADD CODE HERE IF NECESSARY /////////
> 
>         // return
>         return $szReturn;
> 
>     // end DrawPublish() function
>     }
> ----------------------------------------------------------------------------
> ------------------
> 
> 
> 3) The cwc2 tag in the template.html
> 
> <cwc2
>    type="UUW"
>    coords="aa"
>    imagetip="Info"
>    image="icons/icon_query.png"
>    styleresource="NavButtons"
>    imagewidth="25"
>    toolset="nav">
>      <image state="normal"/>
>      <image state="hover"/>
>      <image state="selected"/>
>  </cwc2>
> 
> 
> Rally thank you very much,
> Ines
> 
> _______________________________________________
> Chameleon mailing list
> Chameleon at lists.maptools.org
> http://lists.maptools.org/mailman/listinfo/chameleon

-- 
Julien-Samuel Lacroix
Mapgears
http://www.mapgears.com/