package {
//
import flash.display.Bitmap
import flash.display.BitmapData;
import flash.display.GradientType;
import flash.display.SimpleButton;
import flash.display.Sprite;
import flash.display.Stage;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.filters.BitmapFilter;
import flash.filters.BlurFilter;
import flash.filters.BitmapFilterQuality;
import flash.filters.DropShadowFilter;
import flash.filters.GlowFilter;
import flash.geom.Matrix;
import flash.geom.Point;
import flash.geom.Rectangle;
import flash.text.TextField;
import flash.text.TextFieldAutoSize;
import flash.display.DisplayObject;
//
public class Alert {
//
private static var stage:Stage;
private static var btnWidth:int = 45
private static var btnHeight:int = 21;
//
public static function init(stageReference:Stage):void {
stage = stageReference;
}
//
public static function show(Text:* = "Made by Dark Vyper", callback:Function = null, Colour:int = 0x515EB7, textColour:int = 0x000000):void {
if (stage == null) return;
var myAlert:Sprite = new Sprite();
myAlert.addChild(createBackground(Colour));
myAlert.addChild(createPrompt(Text.toString(), Colour, textColour));
assignListeners(myAlert, callback);
stage.addChild(myAlert)
}
//
private static function assignListeners(myAlert:Sprite, callback:Function):void {
var Background:* = myAlert.getChildAt(1);
var Prompt:* = Background.getChildAt(0);
var OKbutton:* = Prompt.getChildAt(1);
// Cause Alert to call specified function when alert has been closed
if (callback != null) {
function myFunction(myEvent:MouseEvent):void {
OKbutton.removeEventListener(MouseEvent.CLICK, myFunction);
closeAlert(myEvent);
callback();
};
OKbutton.addEventListener(MouseEvent.CLICK, myFunction);
} else {
OKbutton.addEventListener(MouseEvent.CLICK, closeAlert);
}
}
// removes the Alert from the display list
private static function closeAlert(event:MouseEvent):void {
var OKbutton:* = event.target;
OKbutton.removeEventListener(MouseEvent.CLICK, closeAlert);
var BG:* = event.target.parent;
BG.removeEventListener(MouseEvent.CLICK, doStartDrag);
BG.removeEventListener(MouseEvent.CLICK, doStopDrag);
// messy I know...
var myAlert:Sprite = event.target.parent.parent.parent;
myAlert.parent.removeChild(myAlert);
}
// Creates the background for the Alert
private static function createBackground(Colour:int):Sprite {
var BackgroundBD:BitmapData = new BitmapData(stage.stageWidth, stage.stageHeight, true, 0xFF000000+Colour);
var stageBackground:BitmapData = new BitmapData(stage.stageWidth, stage.stageHeight);
stageBackground.draw(stage);
var rect:Rectangle = new Rectangle(0, 0, stage.stageWidth, stage.stageHeight);
var point:Point = new Point(0, 0);
var multiplier:uint = 120;
BackgroundBD.merge(stageBackground, rect, point, multiplier, multiplier, multiplier, multiplier);
BackgroundBD.applyFilter(BackgroundBD, rect, point, new BlurFilter(5, 5));
var bitmap:Bitmap = new Bitmap(BackgroundBD);
var Background:Sprite = new Sprite();
Background.addChild(bitmap);
return Background;
}
// Returns an 'OK' button
private static function createOKBtn(Colour:int, textColour:int):SimpleButton {
var colors:Array = new Array();
var alphas:Array = new Array(1, 1, 1);
var ratios:Array = new Array(0, 128, 255);
var gradientMatrix:Matrix = new Matrix();
gradientMatrix.createGradientBox(btnWidth, btnHeight, Math.PI/2, 0, 0);
//
var btnUpState:Sprite = new Sprite();
colors = [0xFFFFFF, Colour, 0xFFFFFF];
btnUpState.graphics.lineStyle(1);
btnUpState.graphics.beginGradientFill(GradientType.LINEAR, colors, alphas, ratios, gradientMatrix);
btnUpState.graphics.drawRect(0, 0, btnWidth, btnHeight);
btnUpState.addChild(getTextField("OK" , textColour, true));
//
var btnOverState:Sprite = new Sprite();
colors = [0xFFFFFF, brightenColour(Colour, 50), 0xFFFFFF];
btnOverState.graphics.lineStyle(1);
btnOverState.graphics.beginGradientFill(GradientType.LINEAR, colors, alphas, ratios, gradientMatrix);
btnOverState.graphics.drawRect(0, 0, btnWidth, btnHeight);
btnOverState.addChild(getTextField("OK" , textColour, true))
//
var btnDownState:Sprite = new Sprite();
colors = [Colour, brightenColour(Colour, 50), Colour];
btnDownState.graphics.lineStyle(1);
btnDownState.graphics.beginGradientFill(GradientType.LINEAR, colors, alphas, ratios, gradientMatrix);
btnDownState.graphics.drawRect(0, 0, btnWidth, btnHeight);
btnDownState.addChild(getTextField("OK" , textColour, true))
//
var myButton:SimpleButton = new SimpleButton(btnUpState, btnOverState, btnDownState, btnOverState);
return myButton;
}
// returns a Sprite containing a prompt positioned in the middle of the stage
private static function createPrompt(Text:String, Colour:int, textColour:int):Sprite {
var holder:Sprite = new Sprite()
holder.addEventListener(MouseEvent.MOUSE_DOWN, doStartDrag);
holder.addEventListener(MouseEvent.MOUSE_UP, doStopDrag);
holder.addChild(getPrompt(Text, Colour, textColour));
holder.x = (stage.stageWidth/2)-(holder.width/2);
holder.y = (stage.stageHeight/2)-(holder.height/2);
holder.filters = [getGlowFilter(Colour), getDropShadowFilter(Colour)];
return holder;
}
//
private static function getBlurFilter():BitmapFilter {
var blurX:Number = 100;
var blurY:Number = 100;
return new BlurFilter(blurX, blurY, BitmapFilterQuality.HIGH);
}
//
private static function getDropShadowFilter(Colour:int):DropShadowFilter {
var color:Number = 0x000000;
var angle:Number = 45;
var alpha:Number = 0.6;
var blurX:Number = 8;
var blurY:Number = 8;
var distance:Number = 4;
var strength:Number = 1.3;
var inner:Boolean = false;
var knockout:Boolean = false;
var quality:Number = BitmapFilterQuality.LOW;
return new DropShadowFilter(distance, angle, color, alpha, blurX, blurY, strength, quality, inner, knockout);
}
//
private static function getGlowFilter(Colour:int):GlowFilter {
var color:Number = 0xFFFFFF;
var alpha:Number = 0.8;
var blurX:Number = 15;
var blurY:Number = 15;
var strength:Number = 0.7;
var inner:Boolean = true;
var knockout:Boolean = false;
var quality:Number = BitmapFilterQuality.HIGH;
return new GlowFilter(color, alpha, blurX, blurY, strength, quality, inner, knockout);
}
// returns a sprite containing a prompt complete with a background, the specified text and an OK button
private static function getPrompt(Text:String, Colour:int, textColour:int):Sprite {
var prompt:Sprite = new Sprite();
prompt.addEventListener(MouseEvent.MOUSE_DOWN, doStartDrag);
prompt.addEventListener(MouseEvent.MOUSE_UP, doStopDrag);
prompt.name = "alert";
var textField:TextField = getTextField(Text, textColour);
var myWidth:int = textField.width+10;
var myHeight:int = textField.height+55;
if (myWidth < 150) {
myWidth = 150;
}
if (myHeight < 100) {
myHeight = 100;
}
if (myHeight > stage.stageHeight) {
myHeight = stage.stageHeight - 20;
textField.autoSize = TextFieldAutoSize.NONE;
textField.height = stage.stageHeight-40;
}
// Create a background for the prompt
var ellipseSize:int = 5;
prompt.graphics.lineStyle(1);
prompt.graphics.beginFill(Colour);
prompt.graphics.drawRoundRect(0, 0, myWidth, myHeight, ellipseSize, ellipseSize);
// Add the specified text to the prompt
textField.x = (prompt.width/2)-(textField.width/2);
textField.y = (prompt.height/2)-(textField.height/2)-10;
prompt.addChild(textField);
// Add an OK Button to the prompt
var OKbutton:SimpleButton = createOKBtn(Colour, textColour);
OKbutton.x = (prompt.width/2)-(OKbutton.width/2);
OKbutton.y = prompt.height-35;
prompt.addChild(OKbutton);
//
return prompt;
}
// Returns a textfield with the specified text
private static function getTextField(Text:String, textColour:int, bold:Boolean = false):TextField {
var myTextField:TextField = new TextField();
myTextField.textColor = textColour;
myTextField.name = "textfield";
myTextField.multiline = true;
myTextField.selectable = false;
myTextField.autoSize = TextFieldAutoSize.CENTER;
if (bold) {
Text = "<b>"+Text+"</b>";
}
myTextField.htmlText = '<font face="Verdana">'+Text+'</font>';
myTextField.x = (btnWidth/2)-(myTextField.width/2);
myTextField.y = (btnHeight/2)-(myTextField.height/2);
return myTextField;
}
//
// Helper functions
//-----------------------------------------------------------------
//
// returns a brighter version of the specified colour
private static function brightenColour(colour:int, modifier:int):int {
var hex:Array = hexToRGB(colour);
var red:int = keepInBounds(hex[0]+modifier);
var green:int = keepInBounds(hex[1]+modifier);
var blue:int = keepInBounds(hex[2]+modifier);
return RGBToHex(red, green, blue);
}
private static function doStartDrag(event:MouseEvent):void {
if (event.target.name != "textfield") {
if (event.target.name == "alert") {
event.target.startDrag();
}
}
}
private static function doStopDrag(event:MouseEvent):void {
if (event.target.name != "textfield") {
if (event.target.name == "alert") {
event.target.stopDrag();
}
}
}
public static function hexToRGB (hex:uint):Array {
var Colours:Array = new Array();
Colours.push(hex >> 16);
var temp:uint = hex ^ Colours[0] << 16;
Colours.push(temp >> 8);
Colours.push(temp ^ Colours[1] << 8);
return Colours;
}
private static function keepInBounds(number:int):int {
if (number < 0) number = 0;
if (number > 255) number = 255;
return number;
}
private static function RGBToHex(uR:int, uG:int, uB:int):int {
var uColor:uint;
uColor = (uR & 255) << 16;
uColor += (uG & 255) << 8;
uColor += (uB & 255);
return uColor;
}
// Stops any mouse events from getting below the alert
private static function stopEvents(event:MouseEvent):void {
event.stopImmediatePropagation();
}
}
}
