From d0070352cc61b1fa58aa856f7bc043ef115e3ef1 Mon Sep 17 00:00:00 2001
From: Gunay Mert Karadogan <mertkaradogan@gmail.com>
Date: Wed, 1 Jul 2015 13:17:01 +0200
Subject: [PATCH] Layout subviews

---
 .../GMStepper/Base.lproj/Main.storyboard      | 16 +++++++++++++
 GMStepper/GMStepper/GMStepper.swift           | 23 +++++++++++++++++++
 2 files changed, 39 insertions(+)

diff --git a/GMStepper/GMStepper/Base.lproj/Main.storyboard b/GMStepper/GMStepper/Base.lproj/Main.storyboard
index 62fee11..14e5d9e 100644
--- a/GMStepper/GMStepper/Base.lproj/Main.storyboard
+++ b/GMStepper/GMStepper/Base.lproj/Main.storyboard
@@ -2,6 +2,7 @@
 <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="8121.20" systemVersion="14D136" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
     <dependencies>
         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="8101.16"/>
+        <capability name="Constraints to layout margins" minToolsVersion="6.0"/>
     </dependencies>
     <scenes>
         <!--View Controller-->
@@ -15,11 +16,26 @@
                     <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
                         <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="myb-yU-Jdq" customClass="GMStepper" customModule="GMStepper" customModuleProvider="target">
+                                <rect key="frame" x="20" y="20" width="284" height="44"/>
+                                <color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
+                                <constraints>
+                                    <constraint firstAttribute="width" constant="284" id="RLe-7a-S9I"/>
+                                    <constraint firstAttribute="height" constant="44" id="bMh-qb-O1H"/>
+                                </constraints>
+                            </view>
+                        </subviews>
                         <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                        <constraints>
+                            <constraint firstAttribute="leadingMargin" secondItem="myb-yU-Jdq" secondAttribute="leading" id="NuJ-b9-mHR"/>
+                            <constraint firstItem="myb-yU-Jdq" firstAttribute="top" secondItem="y3c-jy-aDJ" secondAttribute="bottom" id="xo4-e0-e0r"/>
+                        </constraints>
                     </view>
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
             </objects>
+            <point key="canvasLocation" x="340" y="387"/>
         </scene>
     </scenes>
 </document>
diff --git a/GMStepper/GMStepper/GMStepper.swift b/GMStepper/GMStepper/GMStepper.swift
index c7a348c..0f1efe6 100644
--- a/GMStepper/GMStepper/GMStepper.swift
+++ b/GMStepper/GMStepper/GMStepper.swift
@@ -25,8 +25,31 @@ class GMStepper: UIView {
         leftButton.addTarget(self, action: "leftButtonTapped:", forControlEvents: .TouchDown)
         rightButton.addTarget(self, action: "rightButtonTapped:", forControlEvents: .TouchDown)
         
+        label.textAlignment = .Center
+        
         addSubview(leftButton)
         addSubview(rightButton)
         addSubview(label)
     }
+    
+    override func layoutSubviews() {
+        let buttonSize = Int(frame.size.height)
+        let labelWidth = Int(frame.size.width) - 2 * buttonSize
+
+        let leftButtonFrame = CGRect(x: 0, y: 0, width: buttonSize, height: buttonSize)
+        let labelFrame = CGRect(x: buttonSize, y: 0, width: labelWidth, height: buttonSize)
+        let rightButtonFrame = CGRect(x: buttonSize + labelWidth, y: 0, width: buttonSize, height: buttonSize)
+        
+        leftButton.frame = leftButtonFrame
+        label.frame = labelFrame
+        rightButton.frame = rightButtonFrame
+    }
+    
+    func leftButtonTapped(button: UIButton) {
+        
+    }
+
+    func rightButtonTapped(button: UIButton) {
+        
+    }
 }