// custom RowNumberer for use with paging GridPanels
Ext.ux.PagingRowNumberer = Ext.extend(Ext.grid.RowNumberer, {
  renderer : function(v, p, record, rowIndex, colIndex, store){
    if (this.rowspan) {
      p.cellAttr = 'rowspan="' + this.rowspan + '"';
    }

    var so = store.lastOptions;
    var sop = so? so.params : null;
    return ((sop && sop.start)? sop.start : 0) + rowIndex + 1;
  }
});

/**
 * Clone Function
 */
Ext.ux.clone = function(o) {
    if(!o || 'object' !== typeof o) {
        return o;
    }
    var c = 'function' === typeof o.pop ? [] : {};
    var p, v;
    for(p in o) {
        if(o.hasOwnProperty(p)) {
            v = o[p];
            if(v && 'object' === typeof v) {
                c[p] = Ext.ux.clone(v);
            }
            else {
                c[p] = v;
            }
        }
    }
    return c;
}; // eo function clone 

Ext.ux.TabTitleEditor = Ext.extend(Object, {
    init: function(c){
        c.on({
            render: this.onRender,
            destroy: this.onDestroy,
            single: true
        });
    },
    onRender: function(c){
        c.titleEditor = new Ext.Editor(new Ext.form.TextField({
            allowBlank: false,
            enterIsSpecial: true
        }), {
            autoSize: 'width',
            completeOnEnter: true,
            cancelOnEsc: true,
            listeners: {
                complete: function(editor, value){
                    var item = this.getComponent(editor.boundEl.id.split(this.idDelimiter)[1]);
                    item.setTitle(value);
                },
                scope: this
            }
        });
        c.mon(c.strip, {
            dblclick: function(e){
                var t = this.findTargets(e);
                if(t && t.item && !t.close && t.item.titleEditable !== false){
                    this.titleEditor.startEdit(t.el, t.item.title);
                }
            },
            scope: c
        });
    },
    onDestroy: function(c){
        if(c.titleEditor){
            c.titleEditor.destroy();
            delete c.titleEditor;
        }
    }
});
Ext.preg('tabtitleedit', Ext.ux.TabTitleEditor);