Roo/layout/South.js

Roo.layout.South = function(mgr, config){
    Roo.layout.SplitRegion.call(this, mgr, config, "south", "s-resize");
    if(this.split){
        this.split.placement = Roo.SplitBar.BOTTOM;
        this.split.orientation = Roo.SplitBar.VERTICAL;
        this.split.el.addClass("x-layout-split-v");
    }
    var size = config.initialSize || config.height;
    if(typeof size != "undefined"){
        this.el.setHeight(size);
    }
};
Roo.extend(Roo.layout.South, Roo.layout.SplitRegion, {
    orientation: Roo.SplitBar.VERTICAL,
    getBox : function(){
        if(this.collapsed){
            return this.collapsedEl.getBox();
        }
        var box = this.el.getBox();
        if(this.split){
            var sh = this.split.el.getHeight();
            box.height += sh;
            box.y -= sh;
        }
        return box;
    },

    updateBox : function(box){
        if(this.split && !this.collapsed){
            var sh = this.split.el.getHeight();
            box.height -= sh;
            box.y += sh;
            this.split.el.setLeft(box.x);
            this.split.el.setTop(box.y-sh);
            this.split.el.setWidth(box.width);
        }
        if(this.collapsed){
            this.updateBody(box.width, null);
        }
        Roo.layout.Region.prototype.updateBox.call(this, box);
    }
});