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<span id='Ext-list-ColumnResizer-method-setBoundaries'>    // Sets up the boundaries for the drag/drop operation
</span>    setBoundaries: function(relativeX){
        var view = this.view,
            headerIndex = this.headerIndex,
            width = view.innerHd.getWidth(),
            relativeX = view.innerHd.getX(),
            minWidth = Math.ceil(width * this.minPct),
            maxWidth = width - minWidth,
            numColumns = view.columns.length,
            headers = view.innerHd.select('em', true),
            minX = minWidth + relativeX,
            maxX = maxWidth + relativeX,
            header;
          
        if (numColumns == 2) {
            this.minX = minX;
            this.maxX = maxX;
        }else{
            header = headers.item(headerIndex + 2);
            this.minX = headers.item(headerIndex).getX() + minWidth;
            this.maxX = header ? header.getX() - minWidth : maxX;
            if (headerIndex == 0) {
                // First
                this.minX = minX;
            } else if (headerIndex == numColumns - 2) {
                // Last
                this.maxX = maxX;
            }
        }
    },

<span id='Ext-list-ColumnResizer-method-onDrag'>    onDrag: function(e){
</span>        var me = this,
            cursorX = me.tracker.getXY()[0].constrain(me.minX, me.maxX);
            
        me.proxy.setWidth(cursorX - this.dragX);
    },

<span id='Ext-list-ColumnResizer-method-onEnd'>    onEnd: function(e){
</span>        /* calculate desired width by measuring proxy and then remove it */
        var newWidth = this.proxy.getWidth(),
            index = this.headerIndex,
            view = this.view,
            columns = view.columns,
            width = view.innerHd.getWidth(),
            newPercent = Math.ceil(newWidth * view.maxColumnWidth / width) / 100,
            disabled = this.headersDisabled,
            headerCol = columns[index],
            otherCol = columns[index + 1],
            totalPercent = headerCol.width + otherCol.width;

        this.proxy.remove();

        headerCol.width = newPercent;
        otherCol.width = totalPercent - newPercent;
      
        delete this.dragHd;
        view.setHdWidths();
        view.refresh();
        
        setTimeout(function(){
            view.disableHeaders = disabled;
        }, 100);
    }
});

// Backwards compatibility alias
Ext.ListView.ColumnResizer = Ext.list.ColumnResizer;</pre>
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