[SWIFT] Minecraft Skin Downloader

//
//  AppDelegate.swift
//  Minecraft Skin Downloader
//
//  Created by Necmi Hasan on 19.09.14.
//  Copyright (c) 2014 Necmi Hasan. All rights reserved.
//




import Cocoa




class AppDelegate: NSObject, NSApplicationDelegate, NSOpenSavePanelDelegate{

    @IBOutlet weak var window: NSWindow!
    @IBOutlet weak var textBox1: NSTextField!
    @IBOutlet weak var imageview: NSImageView!








    func applicationDidFinishLaunching(aNotification: NSNotification?) {
        // Insert code here to initialize your application
    }




    func applicationWillTerminate(aNotification: NSNotification?) {
        // Insert code here to tear down your application
    }




    @IBAction func AnzeigeButtonClick(sender: NSButton) {
        if textBox1.stringValue.isEmpty {
            var alert :NSAlert = NSAlert()
            alert.addButtonWithTitle("Ok")
            alert.messageText = "Das Textfeld ist leer!"
            alert.informativeText = "Das Textfeld ist leer!"
            alert.alertStyle = NSAlertStyle.WarningAlertStyle
            alert.runModal()
        } else {
            var url = NSURL.URLWithString("http://s3.amazonaws.com/MinecraftSkins/" + textBox1.stringValue + ".png")
            imageview.image =  NSImage(contentsOfURL : url)
        }
    }
    @IBAction func downloadButtonClick(sender: NSButton) {
        let openDlg : NSSavePanel = NSSavePanel()
        openDlg.canCreateDirectories = false
        openDlg.nameFieldStringValue = textBox1.stringValue + ".png"
        openDlg.delegate = self;
        openDlg.runModal()
    }

     func panel(sender: AnyObject!, validateURL url: NSURL!, error outError: NSErrorPointer) -> Bool {
        if(self.imageview.image != nil) {
            var bitImageRep : NSBitmapImageRep = self.imageview.image.representations[0] as NSBitmapImageRep
            var data : NSData = bitImageRep.representationUsingType(NSBitmapImageFileType.NSPNGFileType, properties: nil)
            data.writeToURL(url, atomically: true)
        } else {

        }


        return true
    }




}