photocollection.lzx

<library>
    <class name="photocollection">

        <attribute name="photoclass" value="lz.photo" when="once"/>

        <attribute name="activephotos" value="$once{ [] }"/>

        <method name="addSelection" args="sel">
            
            var offset = activephotos.length;
            // Add the selection to the active photos before setting
            // the datapath to remove timing issues. (See LPP-5937)
            for ( var i =0; i< sel.length; i++ ){
                var p = this.getPhoto( );
                p.sendToBack();
                activephotos.push( p );
            }
            for ( var i =0; i< sel.length; i++ ){
                var e = sel[i];
                activephotos[offset+i].datapath.setFromPointer(e.datapath);
            }
            
        </method>

        <attribute name="photopool" value="$once{ [] }"/>

        <method name="getPhoto">
            var r;
            if ( photopool.length ) {
                r = photopool.pop();
            } else {
                r = new photoclass( this , { visible : false } );
                new lz.datapath( r );
                r.txt.setAttribute('visible',  false )
            }
            showdel.register( r, "onloaded" );
            return r;
        </method>

        <attribute name="showdel" value="$once{ new LzDelegate( this, 'showAfterLoad' ) }"/>

        <!-- pure virtual
        <method name="showAfterLoad">
        -->

        <method name="poolAll">
            while( activephotos.length ){
                var p = activephotos.pop();
                p.setAttribute('visible',  false );
                p.datapath.setPointer( null );
                photopool.push( p );
            }
            showdel.unregisterAll();
        </method>

    </class>
</library>
<!--
* X_LZ_COPYRIGHT_BEGIN ****************************************************
* Copyright 2006-2008 Laszlo Systems, Inc.  All Rights Reserved.          *
* Use is subject to license terms.                                        *
* X_LZ_COPYRIGHT_END ******************************************************-->