<?xml version="1.0" encoding="utf-8"?>
<!--
  Licensed to the Apache Software Foundation (ASF) under one or more
  contributor license agreements.  See the NOTICE file distributed with
  this work for additional information regarding copyright ownership.
  The ASF licenses this file to You under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with
  the License.  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
-->
<mx:Canvas
	width="1024" height="768"
    enterFrame="handleEnterFrame()" 
    xmlns:mx="http://www.adobe.com/2006/mxml" 
    xmlns:flow="library://ns.adobe.com/flashx/textLayout">
    <mx:Script>
        <![CDATA[
            
    import flash.geom.Rectangle;
    import flash.text.engine.ElementFormat;
    import flash.text.engine.FontDescription;
    import flash.text.engine.LineJustification;
    import flash.text.engine.SpaceJustifier;
    import flash.text.engine.TextBlock;
    import flash.text.engine.TextElement;
    import flash.text.engine.TextLine;
    import flash.text.engine.TextLineValidity;
    import flash.utils.getQualifiedClassName;
    
    import flashx.textLayout.TextLayoutVersion;
    import flashx.textLayout.container.ContainerController;
    import flashx.textLayout.container.ScrollPolicy;
    import flashx.textLayout.conversion.TextConverter;
    import flashx.textLayout.debug.assert;
    import flashx.textLayout.elements.Configuration;
    import flashx.textLayout.elements.ParagraphElement;
    import flashx.textLayout.elements.SpanElement;
    import flashx.textLayout.elements.TextFlow;
    import flashx.textLayout.formats.BlockProgression;
    import flashx.textLayout.tlf_internal;
    
    import mx.collections.ArrayCollection;
    import mx.controls.Text;

	use namespace tlf_internal;
        
    private var resultText:Text;
        
        static private const testTypeArray:ArrayCollection = new ArrayCollection([
            {label:"TextField",         data:"buildTextField", refreshData:"refreshTextField" },
            {label:"FTE",               data:"buildFTEField" , refreshData:"refreshFTEField"},
            {label:"Rectangles",        data:"buildRectangle" , refreshData:"refreshRectangle"}                                                                                                                                                                                                                            
        ]);

        // data for the current run
        private var sampleText:String="";
        private var _func:String;
        private var _refreshFunc:String;
        private var numberOfIterations:int = 0;
        
        private var dataLengthVal:Number;
        
        private var minWidthVal:Number;
        private var maxWidthVal:Number;
        private var widthStepVal:Number;
        
        private var currIteration:int = -1;
        private var currWidthVal:Number;
        
        private var beginThisRender:int;
        private var timingRendering:Boolean = false;
        
        // timers
        private var beginTestTime:int;
        public var totalCreationTime:int;
        public var totalRenderTime:int;
        
        private var cols:int = 15;
        
        private var testType:String = "";
        
        private var desiredColSize:Number;
        
        public function runCreateTest():void
        {
            testType = "create";
            cols = 15;
            sampleText="";
            totalCreationTime = 0;
            totalRenderTime = 0;
            numberOfIterations = int(iterationsInput.text);
            
            initNewTest()
            
            createTest.enabled = false;  
            updateTest.enabled = false; 
                
            currIteration = 0;
        }
  
        public function runUpdateTest():void
        {
            testType = "update";
            cols = 15;
            totalCreationTime = 0;
            totalRenderTime = 0;
            numberOfIterations = int(iterationsInput.text);
            
            initNewTest();
            
            createTest.enabled = false;  
            updateTest.enabled = false; 
                
            currIteration = 0;
            createGrid();
        }
        
        public function sizingDemo():void
        {
            cols = 13;
            initNewTest(); 
            desiredColSize =  lineHolder.width / cols;
            slider.value = Number(desiredColSize);    
            slider.visible = true;
            sampleText = 'word1 word2'; 
            createGrid();
        }
  
        private function initNewTest():void
        {
            // clear the previous run
            if (resultText)
            {
                lineHolder.removeChild(resultText);
                resultText = null;
            }
            
            // Zap previous cells.
            while (lineHolder.rawChildren.numChildren)
            {
                lineHolder.rawChildren.removeChildAt(0);
            }
            
            _func = testTypeArray[testTypeCombo.selectedIndex].data;
            _refreshFunc = testTypeArray[testTypeCombo.selectedIndex].refreshData;
            
            slider.visible = false;
        }
        
        private function Step():void
        {
            if (testType == "create")
            {
                while (lineHolder.rawChildren.numChildren)
                    lineHolder.rawChildren.removeChildAt(0);
                
                var t1:Number = getTimer();
                createGrid();
                totalCreationTime = totalCreationTime + (getTimer() - t1);
            } 
            else if (testType == "update")
            {
                t1 = getTimer();
                sampleText = "update_" + currIteration;
                refreshGrid();
                totalCreationTime = totalCreationTime + (getTimer() - t1);
            }
        }
        
        private function refreshGrid():void
        {
            _func = testTypeArray[testTypeCombo.selectedIndex].data;
            _refreshFunc = testTypeArray[testTypeCombo.selectedIndex].refreshData; 
            updateGrid();  
        }


        // FTE factory 
        static private var templateTextElement:TextElement = null;
        static private var templateTextBlock:TextBlock = null;
        public function buildFTEField(text:String, width:Number, holder:Sprite=null):DisplayObject
        {
            if (!templateTextElement)
            {
                var elementFormat:ElementFormat = new ElementFormat();
                var fontDescription:FontDescription = new FontDescription();
                fontDescription.fontName = "Verdana";
                elementFormat.fontSize = 10;
                elementFormat.fontDescription = fontDescription;
                templateTextElement = new TextElement();
                templateTextElement.elementFormat = elementFormat;
                templateTextBlock = new TextBlock(templateTextElement); 
                templateTextBlock.textJustifier = new SpaceJustifier("en",LineJustification.UNJUSTIFIED,false);         
            }
            
            if (text)
                templateTextElement.text = text;
            
            var rslt:Sprite = holder ? holder : new Sprite();
            var textLine:TextLine = null;
            var y:Number = 10.5;
            
            while (textLine = templateTextBlock.createTextLine(textLine,width,0,true))
            {
                textLine.x = 2;
                textLine.y = y;
                y += 12.2;
                rslt.addChild(textLine);
            }       
            
            for (var i:int = 0; i < rslt.numChildren; i++)
                TextLine(rslt.getChildAt(i)).validity = TextLineValidity.STATIC;

            return rslt;    
        }
        
        public function refreshFTEField(a:Sprite, text:String, width:Number):DisplayObject
        {
            while (a.numChildren)
                a.removeChildAt(0);
            
            return buildFTEField(text, width, a);
        }
        
        // Rectangle Factory 
        public function buildRectangle(text:String, width:Number):DisplayObject
        {
            var s:Shape = new Shape();
            s.graphics.beginFill(0xcccccc); 
            s.graphics.lineStyle(1, 0xFFFFFF);
            s.graphics.drawRect(0,0,width,15);
            s.graphics.endFill();
            return s;
        }
        
        public function refreshRectangle(a:DisplayObject, text:String, width:Number):DisplayObject
        {
            var s:Shape = a as Shape;
            s.graphics.clear();
            s.graphics.beginFill(0xcccccc); 
            s.graphics.lineStyle(1, 0xFFFFFF);
            s.graphics.drawRect(0,0,width,15);
            s.graphics.endFill();
            return s;
        }
        
        // TextField Factory 
        static private var defaultTextFormat:TextFormat;
        
        private var lastTextField:TextField;
        public function buildTextField(text:String, width:Number):DisplayObject
        {
            if (!defaultTextFormat)
            {
                defaultTextFormat = new TextFormat();
                defaultTextFormat.font = "Verdana";
                defaultTextFormat.size = 10;
            }
            
            var a:TextField = new TextField();
            a.defaultTextFormat = defaultTextFormat;
            a.text = text;
            a.width = width;
            a.autoSize = "left";
            a.multiline = true;
            a.wordWrap = true;
            
            lastTextField = a;
            return a;
        }
        
        public function refreshTextField(a:TextField, text:String, width:Number):DisplayObject
        {
            if (text)
                a.text = text;
            a.width = width;
            a.autoSize = "left";
            a.multiline = true;
            a.wordWrap = true;
            return a;
        }
        
        // count of number of tests run this session
        private var testCount:int = 0;
        private var queueResults:Boolean = false;
        
        /** generate a report at the next enter frame */
        public function handleEnterFrame(): void
        {
            if (currIteration == -1)
                return;
                
            if (timingRendering)
            {
                totalRenderTime += getTimer() - beginThisRender;
                timingRendering = false;
            }
            
            // report results if appropriate
            if (currIteration < numberOfIterations)
            {
                Step();
                
                // prepare for the next iteration
                currIteration++;
                    
                // begin timing rendering
                timingRendering = true;
                beginThisRender = getTimer();
            }
            else
            { 
                try {
                     new LocalConnection().connect('dummy');
                     new LocalConnection().connect('dummy');
                } catch (e:*) {}


                queueResults = true;
                createTest.enabled = true;  
                updateTest.enabled = true;  
                currIteration = -1;
            }
            
            if (queueResults)
            {
                reportResults();
                queueResults = false;
            }
        }
      
		public const gridDeltaY:Number = 9.75;
        // Grid generator.
        private function createGrid():void
        {
            var t1:Number = getTimer();
            var cellWidth:Number = lineHolder.width / cols;
            var curY:int = 0;
            var cell:DisplayObject;
            var rowCount:Number = 0;
            
            while (curY < lineHolder.height)
            {
                var curX:int = 0;
                for (var c:int = 0; c < cols; c++)
                {
                    var st:String = sampleText != "" ? sampleText : "Cell " + int(c+1) + "," + int(rowCount+1);
                    cell = this[_func](st, cellWidth);
                    lineHolder.rawChildren.addChild(cell);
                    cell.x = curX;
                    cell.y = curY;
                    curX += cellWidth;
                }
                rowCount = rowCount + 1;
                curY += gridDeltaY;
                
                if ((curY + gridDeltaY) >= lineHolder.height)
                    break;
            }
            
            var t2:Number = getTimer() - t1;
        }
        
        // Grid Updater
        private function updateGrid():void
        {
            var count:Number = lineHolder.rawChildren.numChildren;
            var cellWidth:Number = lineHolder.width / cols;
            for (var i:int=0; i < count; i++)
            {
                var cell:DisplayObject = lineHolder.rawChildren.getChildAt(i);
                cell = this[_refreshFunc](cell, sampleText, cellWidth);
            }
        }
        
        // Column Resizer
        private function resizeColumn():void
        {
            var secondaryColSize:int = (lineHolder.width - desiredColSize) / (cols-1);
            var delta:Number = lineHolder.width - ((secondaryColSize * (cols - 1)) + desiredColSize);
            var isFTE:Boolean = testTypeCombo.selectedLabel == "FTE";
            
            var count:Number = lineHolder.rawChildren.numChildren;
            var curColumn:int = 0;
            var curX:int = 0;
            var curY:int = 0;
            var maxHeight:int = 0;
            for (var i:int=0; i < count; i++)
            {
                var cellWidth:Number = (curColumn == 0) ? desiredColSize + delta : secondaryColSize;
                var cell:DisplayObject = lineHolder.rawChildren.getChildAt(i);
                cell = this[_refreshFunc](cell, null, cellWidth);
                curColumn = curColumn + 1;
                cell.x = curX;
                cell.y = curY;
                curX += cellWidth;
                maxHeight = maxHeight < cell.height ? cell.height : maxHeight;
                if (curColumn == cols)
                {
                    curColumn = 0;
                    curX = 0;
                    curY += isFTE ? maxHeight + 7: maxHeight;
                    maxHeight = 0;
                }
            }
        }
        
        private function sliderChange():void
        {
            desiredColSize = slider.value;
            resizeColumn();
        }
        
        private function reportResults():void
        {
            var totalTestTime:int = totalRenderTime + totalCreationTime;
            flash.system.System.gc();	//mark
			flash.system.System.gc();	//sweep
            var memoryAllocated:Number = flash.system.System.totalMemory/1024;
                
            var vellumType:String = "Vellum Build: " + flashx.textLayout.TextLayoutVersion.BUILD_NUMBER + "\n";

            resultText = new Text();
            resultText.text = "CreationTime (msecs): " + totalCreationTime.toString() + "\nRenderTime (msec): " + totalRenderTime.toString() + "\nTotalTime (msec): " + totalTestTime.toString() 
                  + " \nmem (K): " + memoryAllocated.toString() + "\n" + vellumType;
            resultText.x = 80; 
            resultText.y = 140;
            resultText.width = 400;
            resultText.setStyle("fontFamily", "Verdana");
            resultText.setStyle("fontSize", 18);
            resultText.opaqueBackground = 0xFFFFFFFF;
            lineHolder.addChild(resultText);    
            this.dispatchEvent(new Event(Event.COMPLETE));
        }
        
       ]]>
    </mx:Script>

    <mx:VBox height="100%" width="100%">
        <mx:HBox id="controlBox" paddingLeft="4" paddingTop="4">
            <mx:Label text="FTEGridTest" fontWeight="bold"/>
            <mx:ComboBox id="testTypeCombo" editable="false" closeDuration="0" openDuration="0" selectionDuration="0"
                        paddingLeft="4" paddingTop="4" selectedIndex="0"
                        dataProvider="{testTypeArray}"/>
            <mx:Label text="Iterations:" fontWeight="bold"/>
            <mx:TextInput id="iterationsInput" text="100" width="40"/>
            <mx:Button id="createTest" label="Run Create Test" click="runCreateTest()"/>
            <mx:Button id="updateTest" label="Run Update Test" click="runUpdateTest()"/>
            <mx:Button id="sizeTest" label="Live Size" click="sizingDemo();"/>
            <mx:HSlider id="slider" width="200" maximum="500" minimum="55" liveDragging="true" change="sliderChange();" visible="false"/>
        </mx:HBox>
        <mx:Canvas id="lineHolder" width="100%" height="100%" keyDown="trace('ddd');"/>
    </mx:VBox>
    
</mx:Canvas>