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/**
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* v0.1 code by dehash.com 2009
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* based on example code at :
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* http://bumpslide.googlecode.com/svn/trunk/as3/examples/zoom/ZoomDemo_01.as
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* Released as open source under the BSD License
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* http://www.opensource.org/licenses/bsd-license.php
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*/
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package {
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import com.bit101.components.HBox;
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import com.bit101.components.HSlider;
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import com.bit101.components.Label;
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import com.bit101.components.PushButton;
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import com.bumpslide.ui.Applet;
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import com.bumpslide.ui.ZoomPanel;
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import net.stevensacks.utils.Web;
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import flash.display.Bitmap;
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import flash.display.Loader;
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import flash.events.Event;
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import flash.events.MouseEvent;
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import flash.net.URLRequest;
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public class ImageDisplayer extends Applet {
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static private const CONTENT_URL:String = "starrynight1280.jpg";
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private var zoomPanel:ZoomPanel;
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private var image:Loader;
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private var myZoomSlider:HSlider;
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private var controls:HBox;
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private var credits:HBox;
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private var offset:uint = 50;
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private var label:Label;
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override protected function addChildren():void {
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// load image with smoothing not applied
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image = new Loader();
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image.contentLoaderInfo.addEventListener(Event.INIT, function(e:Event):void {
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(image.content as Bitmap).smoothing = false;
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});
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image.load(new URLRequest(CONTENT_URL));
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// create zoom panel with image as content
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zoomPanel = new ZoomPanel();
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zoomPanel.content = image;
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addChild(zoomPanel);
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// create HBox to hold controls
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controls = new HBox(this);
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// create controls
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new PushButton(controls, 0, 0, "Home", function():void {
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zoomPanel.panTo(0, 0);
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});
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new PushButton(controls, 0, 0, "<<--", function():void {
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zoomPanel.panLeft();
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});
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new PushButton(controls, 0, 0, "-->>", function():void {
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zoomPanel.panRight();
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});
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new PushButton(controls, 0, 0, "/\\", function():void {
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zoomPanel.panUp();
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});
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new PushButton(controls, 0, 0, "\\/", function():void {
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zoomPanel.panDown();
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});
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myZoomSlider = new HSlider(controls, 0, 5, doZoom);
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myZoomSlider.tick = 0.25;
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myZoomSlider.minimum = 0.25;
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myZoomSlider.maximum = 7;
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myZoomSlider.value = 1;
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addChild(controls);
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zoomPanel.dragZoomControl.minZoom = .25;
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zoomPanel.dragZoomControl.maxZoom = 7;
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zoomPanel.zoomContent.cacheAsBitmap = true;
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// create HBox to hold credits
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credits = new HBox(this);
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// create credits
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var labelText:String = "Van Gogh - Starry Night - 1889 -";
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labelText += "(source http://www.flickr.com/photos/financialaidpodcast/3956763480/)";
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label = new Label(credits, 0, 0, labelText);
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new PushButton(credits, 0, 0, "Image Source", getSource);
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}
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private function getSource(e:MouseEvent):void {
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var link:String = "http://www.flickr.com/photos/financialaidpodcast/3956763480/";
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Web.getURL(link, "_blank");
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}
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private function doZoom(event:Event):void {
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zoomPanel.zoom = myZoomSlider.value;
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}
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/**
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* Applets are resized when stage size changes, so re-center content during redraw
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*/
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override protected function draw():void {
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zoomPanel.move(offset, offset);
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zoomPanel.setSize(width * .85, height * .85);
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controls.x = offset;
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controls.y = offset / 2;
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credits.x = offset;
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credits.y = height * .95;
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}
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}
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}
