HtmlEditor Height Problem

please help me , i cant change htmleditor's height in window

it is my code, eveything perferct but for example windows 900 height i write too html editor 900 , but cant ;

Code:

Ext.create('Ext.window.Window', {                id: 'noteWindow',
                width: 400,
                height: 300,
                cls: 'windowPanel',
                modal: true,
                mode: mode,
                userJid: userJid,
                //maximizable: true,
                closable: false,
                color: defaultColor,
                listeners: {
                    resize: setSize,
                },
                tools: [{
                    type: 'gear',
                    tooltip: 'Renk Paleti',
                    handler: function (e) {
                        btn = this.ownerCt.ownerCt.dockedItems.items[1].items.items[0];
                        colorChange = btn.ownerCt.ownerCt;
                        menuColorEvents();
                        cMenu.showAt(e.getXY());
                    }


                }, {
                    type: 'maximize',
                    tooltip: 'Tam Ekran Görüntüle',
                    handler: function () {
                        if (this.type == 'maximize') {
                            this.ownerCt.ownerCt.maximize(true);
                            this.setType('restore');
                        } else {
                            this.ownerCt.ownerCt.restore(true);
                            this.setType('maximize');
                        }
                        this.setHidden(false);
                    }
                }, {
                    type: 'close',
                    tooltip: 'Kaydet ve Çık',
                    handler: function (btn) {
                        btn = this;
                        saveNote(btn);
                    }
                }],
                items: [{
                    xtype: 'htmleditor',
                    fixed: true,
                    layout: 'fit',
                    value: value,
                    enableAlignments: false,
                    enableColors: false,
                    enableFont: false,
                    enableFontSize: false,
                    enableFormat: false,
                    enableLinks: false,
                    enableLists: false,
                    enableSourceEdit: false,


                }],




            });

HtmlEditor Height Problem