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ExtJS4 - Change font size of TabPanel title text

I need to change the text of the title of the tab in a TabPanel, but I don't want that this will affect every other TabPanel in the application, just this TabPanel.
I tried adding a CSS class by the cls property, by the itemCls property, and by this:
defaults: {
cls: 'aClass'
}
The CSS:
.aClass {
font-size: smaller;
}
But they all look the same:
Nothing seemed to work. How am I able to achieve that?

You should indeed use the cls property on your tabpanel and then have a custom CSS selector that would only point to that tabpanel:
See here: http://jsfiddle.net/49Dc8/
JS
Ext.require('Ext.tab.*');
Ext.onReady(function(){
// basic tabs 1, built from existing content
var tabs = Ext.createWidget('tabpanel', {
renderTo: 'tabs1',
cls: 'mytab',
width: 450,
plain: true,
activeTab: 0,
defaults :{
bodyPadding: 10
},
items: [{
contentEl:'script',
title: 'Short Text'
},{
contentEl:'markup',
title: 'Long Text'
}]
});
});
CSS
.mytab .x-tab-inner{
font-size: 13px;
}

Extjs 4.1 - How to create tabpanel without window or container?

I would like to create tabpanel so it opens when I click on button.
I can create it inside window like so:
var window = new Ext.Window({
id: 'item1',
closable: true,
floating: true,
collapsible: true,
width: 900,
height: 600,
autoScroll: true,
items : mytabpanel
}).show();
but I am wondering how I can do it without window?
it seems like show() doesn't work with tabpanel.

I'm not entirely sure what you're trying to achieve, assuming your code to create the tab panel is correct then I don't see why your code wouldn't work.
If you don't want to render the tab panel in a window, you can always render it to an actual DOM element instead by using the renderTo property.
e.g.
Ext.create('Ext.tab.Panel', {
width: 400,
height: 400,
renderTo: document.getElementById('component'),
items: [{
title: 'Foo'
}, {
title: 'Bar',
tabConfig: {
title: 'Custom Title',
tooltip: 'A button tooltip'
}
}]
});
Where "component" is the id of a container element (E.g. a DIV) within your HTML page. If you call that within the onclick event of the button, hopefully it should do what you require.

If you want a component to float you should use floating mixin

Collapsed panel in border-layout: Permanent expand on title-click

i have 2 panels inside a border-layout. The second one is collapsible with configs 'collapsed' and 'titleCollapse' set. When i click on the title it just shows the panel "temporary" which means that it doesn't stick but collapses automatically after i click anywhere else inside my window. It kind of floats in...
Working example: http://jsfiddle.net/suamikim/LNfm8/
Ext.onReady(function() {
Ext.create('Ext.window.Window', {
width: 500,
height: 300,
layout: 'border',
items: [{
xtype: 'panel',
title: 'panel1',
region: 'center',
flex: 1
},{
xtype: 'panel',
title: 'panel2',
region: 'south',
flex: 1,
collapsible: true,
collapsed: true,
animCollapse: false,
collapseDirection: Ext.Component.DIRECTION_BOTTOM,
titleCollapse: true
}]
}).show();
});
I guess this is a feature of the border-layout because if i put the 2 panels into a box-layout the collapsed panel permanently expands after a click on the title-bar.
I'm aware that the panel would stay expanded if i click on the "double-arrow" or if i click the title a second time after it has been "floated in" but i just don't want this floating-behaviour at all because i experienced it as pretty buggy so far.
I would really appreciate if anyone could tell me how to turn that feature of the border-layout off.
Thanks

Add after titleCollapse property
floatable: false
Look at the fiddle

scroll two ext.TabPanels together

So I have been searching everywhere for the past week but I cant find a way to get two "Ext.TabPanel to scroll together.
I am making this page to have Ext.Panel which has two items :
var MyBorderPanel = new Ext.Panel({
layout: 'border',
renderTo: 'command_display',
cls: 'auto-width-tab-strip',
height:800,
items: [
{
region: 'west',
title: 'item1: <?=ui::getURLField("item1")?>',
split: true,
width: 500,
minSize: 100,
maxSize: 900,
layout: 'fit', // specify layout manager for items
items: // this TabPanel is wrapped by another Panel
baseTab
},
{
region: 'center',
title: 'item2 : <?=ui::getURLField("item2")?>',
split: true,
margins: '0 0 0 0',
layout: 'fit', // specify layout manager for items
items: // this TabPanel is wrapped by another Panel
compareTab
}
]
});
These items : baseTab and compareTab are described like :
var baseTab = new Ext.TabPanel({
border: false, // already wrapped so don't add another border
activeTab: 0, // second tab initially active
items: [
<?php
$uihelper->perform("InitItem1Iteration");
$comma = true;
while($uihelper->hasNext("Item1Iteration"))
{
$uihelper->next("Item1Iteration");
?>
<?=(!$comma?",":"")?>
{
title: 'some php code',
id: 'some php code',
autoScroll: true,
contentEl: 'some php code',
}
<?php
$comma = false;
} ?>
]
});
Similar is the Item2.
Now basically what I want is. that these two tab panels have sroll bars, so I want that whenever I scroll one tabPanel, the other tab panel automatically scrolls along with it.
Is it even possible?
Thanks
Andy

Short answer, should be...
You need to access the scroller item of the specific container that you are interested in.
I would start investigating with something in the line of:
listeners: {
scroller: {
scroll: function(scroller, offset) {
console.log(scroller, offset);
}
}
}
I know that containers have scrollers defined, but I do not think that the tabpanel does. So this kind of listener would have to be added to every item (or the item could bubble the event, untested though).
(and of course, once you can capture the scroll event setting the other panel to the same offset shouldn't prove difficult)
Hope that this at least gives you a direction to move in.

You want to be looking at the scroller, as mentioned by #zelexir. Here is a fiddle with my example code http://jsfiddle.net/YgTuc/1/ This is for two panels, but should work just the same for panels in a TabPanel.

How to get panel within vbox layout to fill container?

I'm having trouble getting a panel to fill the space within its container panel. The container is a panel with a vbox layout having two child panels. I looked at Extjs how to set 100% height for vbox panel
and have something similar but it doesn't seem to work.
Screenshots:-
http://i.imgur.com/nAbCr.png
The screenshot is from when i use a 'fit' layout or dont even have the combobox or optionsview in a containing panel. So, what i want is for the 'options' panel to extend all the way down till the 'results' panel.
with the present vbox layout this is what i get - http://i.imgur.com/cB0k1.png
Ext.define('PA.view.CreateReportView', {
extend: 'Ext.panel.Panel',
alias: 'widget.createreportview',
id: 'createreport-panel',
requires: [
'PA.view.OptionsView', // options panel
'PA.common.Connection'],
title: 'Create Report',
items: [{
xtype: 'panel',
layout: {
type: 'vbox',
align: 'stretch'
},
items: [{
xtype: 'panel',
border: false,
height: '50px',
items: [{
xtype: 'combobox',
....
}]
}, {
xtype: 'panel',
border: false,
flex: 1,
items: [{
xtype: 'optionsview', // options panel
style: {
paddingTop: '10px'
}
}]
}]
}]
});

The value of height: should be a number, not a string. So use height: 50 instead.

I think you have it close to what you need. Couple of observations:
1. Heights need to be set as integers (no px suffix)
2. Each container that will have children should have a layout defined for them, even though there is default - it might not be what you want.
Here is your layout working reasonably well http://jsfiddle.net/dbrin/NJjhB/
One other suggestion I would add is to use a tool like Illuminations for Developers - a firebug plugin that knows about ExtJS framework.