MainWindow.xib

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="4510" systemVersion="12F36" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none">
    <dependencies>
        <deployment defaultVersion="1080" identifier="macosx"/>
        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="4510"/>
    </dependencies>
    <objects>
        <customObject id="-2" userLabel="File's Owner" customClass="MainWindowController">
            <connections>
                <outlet property="gasSlider" destination="10" id="13"/>
                <outlet property="view" destination="7" id="12"/>
                <outlet property="window" destination="2" id="6"/>
            </connections>
        </customObject>
        <customObject id="-1" userLabel="First Responder" customClass="FirstResponder"/>
        <customObject id="-3" userLabel="Application"/>
        <window title="Fire" allowsToolTipsWhenApplicationIsInactive="NO" autorecalculatesKeyViewLoop="NO" oneShot="NO" animationBehavior="default" id="2" customClass="MainWindow">
            <windowStyleMask key="styleMask" titled="YES" closable="YES" miniaturizable="YES" resizable="YES"/>
            <rect key="contentRect" x="131" y="-205" width="538" height="634"/>
            <rect key="screenRect" x="0.0" y="0.0" width="1280" height="778"/>
            <view key="contentView" id="3">
                <rect key="frame" x="0.0" y="0.0" width="538" height="634"/>
                <autoresizingMask key="autoresizingMask"/>
                <subviews>
                    <customView id="7">
                        <rect key="frame" x="0.0" y="0.0" width="504" height="634"/>
                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
                    </customView>
                    <textField verticalHuggingPriority="750" id="8">
                        <rect key="frame" x="500" y="603" width="41" height="17"/>
                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
                        <textFieldCell key="cell" scrollable="YES" lineBreakMode="clipping" sendsActionOnEndEditing="YES" alignment="center" title="Gas" id="9">
                            <font key="font" metaFont="system"/>
                            <color key="textColor" name="controlTextColor" catalog="System" colorSpace="catalog"/>
                            <color key="backgroundColor" name="controlColor" catalog="System" colorSpace="catalog"/>
                        </textFieldCell>
                    </textField>
                    <slider horizontalHuggingPriority="750" id="10">
                        <rect key="frame" x="510" y="17" width="21" height="580"/>
                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
                        <sliderCell key="cell" continuous="YES" alignment="left" minValue="1" maxValue="200" doubleValue="40" tickMarkPosition="right" sliderType="linear" id="11"/>
                        <connections>
                            <action selector="slidersChanged:" target="-2" id="14"/>
                        </connections>
                    </slider>
                </subviews>
            </view>
        </window>
    </objects>
</document>