internal static CCTexture2D CreateNativeLabel(string text, CCSize dimensions, CCTextAlignment hAlignment,
		                                   CCVerticalTextAlignment vAlignment, string fontName,
		                                   float fontSize, CCColor4B textColor)
		{

		    if (string.IsNullOrEmpty(text))
		    {
		        return new CCTexture2D();
		    }

		    var font = CreateFont (fontName, fontSize);

            if (dimensions.Equals(CCSize.Zero))
            {
                CreateBitmap(1, 1);

                var ms = _graphics.MeasureString(text, font);
                
                dimensions.Width = ms.Width;
                dimensions.Height = ms.Height;
            }

            CreateBitmap((int)dimensions.Width, (int)dimensions.Height);

            var stringFormat = new StringFormat();

		    switch (hAlignment)
		    {
		        case CCTextAlignment.Left:
                    stringFormat.Alignment = StringAlignment.Near;
		            break;
		        case CCTextAlignment.Center:
                    stringFormat.Alignment = StringAlignment.Center;
		            break;
		        case CCTextAlignment.Right:
                    stringFormat.Alignment = StringAlignment.Far;
		            break;
		    }

		    switch (vAlignment)
		    {
		        case CCVerticalTextAlignment.Top:
        		    stringFormat.LineAlignment = StringAlignment.Near;
		            break;
		        case CCVerticalTextAlignment.Center:
        		    stringFormat.LineAlignment = StringAlignment.Center;
		            break;
		        case CCVerticalTextAlignment.Bottom:
        		    stringFormat.LineAlignment = StringAlignment.Far;
		            break;
		    }

            _graphics.DrawString(text, font, _brush, new RectangleF(0, 0, dimensions.Width, dimensions.Height), stringFormat);
            _graphics.Flush();

			var texture = new CCTexture2D();
			texture.InitWithStream (SaveToStream(), Microsoft.Xna.Framework.Graphics.SurfaceFormat.Bgra4444);

			return texture;
		}

 public CCTextFieldTTF(string text, string fontName, float fontSize, CCSize dimensions, CCTextAlignment hAlignment, CCVerticalTextAlignment vAlignment)
     : base(text, fontName, fontSize, dimensions, new CCLabelFormat( CCLabelFormatFlags.Unknown ) { Alignment = hAlignment,
         LineAlignment = vAlignment})
 {
     EditTitle = "Input";
     EditDescription = "Please provide input";
 }

        public CCLabelTTF ()
        {
            m_hAlignment = CCTextAlignment.Center;
            m_vAlignment = CCVerticalTextAlignment.Top;
            m_pFontName = string.Empty;
            m_fFontSize = 0.0f;

            Init();
        }

        /// <summary>
        /// creates a CCLabelTTF from a fontname, alignment, dimension and font size
        /// </summary>
        public static CCLabelTTF labelWithString(string label, CCSize dimensions, CCTextAlignment alignment, string fontName, float fontSize)
        {
            CCLabelTTF pRet = new CCLabelTTF();
            if (pRet != null && pRet.initWithString(label, dimensions, alignment, fontName, fontSize))
            {
                return pRet;
            }

            return null;
        }

        //////////////////////////////////////////////////////////////////////////
        // initialize
        //////////////////////////////////////////////////////////////////////////

        /** initializes the CCTextFieldTTF with a font name, alignment, dimension and font size */
        public bool initWithPlaceHolder(string placeholder, CCSize dimensions, CCTextAlignment alignment, string fontName, float fontSize)
        {
            if (placeholder != null)
            {
                //CC_SAFE_DELETE(m_pPlaceHolder);
                m_pPlaceHolder = placeholder;
            }

            return cclabelttf.initWithString(m_pPlaceHolder, dimensions, alignment, fontName, fontSize);
            //throw new NotFiniteNumberException();
        }

        /// <summary>
        /// initializes the CCLabelTTF with a font name, alignment, dimension and font size
        /// </summary>
        public bool initWithString(string label, CCSize dimensions, CCTextAlignment alignment, string fontName, float fontSize)
        {
            Debug.Assert(label != null);
            if (init())
            {
                m_tDimensions = new CCSize(dimensions.width * CCDirector.sharedDirector().ContentScaleFactor, dimensions.height * CCDirector.sharedDirector().ContentScaleFactor);
                m_eAlignment = alignment;

                m_pFontName = fontName;

                m_fFontSize = fontSize * CCDirector.sharedDirector().ContentScaleFactor;
                this.setString(label);
                return true;
            }
            return false;
        }

        //char * description();

        //////////////////////////////////////////////////////////////////////////
        // static constructor
        //////////////////////////////////////////////////////////////////////////

        /** creates a CCTextFieldTTF from a fontname, alignment, dimension and font size */
        public static CCTextFieldTTF textFieldWithPlaceHolder(string placeholder, CCSize dimensions, CCTextAlignment alignment, string fontName, float fontSize)
        {
            CCTextFieldTTF pRet = new CCTextFieldTTF();
            if (pRet != null && pRet.initWithPlaceHolder("", dimensions, alignment, fontName, fontSize))
            {
                //pRet->autorelease();
                if (placeholder != null)
                {
                    pRet.PlaceHolder = placeholder;
                }
                return pRet;
            }
            //CC_SAFE_DELETE(pRet);
            return null;
            throw new NotFiniteNumberException();
        }

        public override void OnEnter()
        {
            base.OnEnter();

            var s = VisibleBoundsWorldspace.Size;

            menuLeft.Position = new CCPoint(50, s.Height / 2 - 20);
            menuRight.Position = new CCPoint(s.Width - 50, s.Height / 2 - 20);


            alignmentLabel = null;
            horizontalAlign = CCTextAlignment.Left;
            verticalAlign = CCVerticalTextAlignment.Top;


            blockSize = new CCSize(s.Width / 3, s.Height / 2);

            var leftPanel = new AlignmentPanel(blockSize, new CCColor4B(100, 100, 100, 255));
            var centerPanel = new AlignmentPanel(blockSize, new CCColor4B(200, 100, 100, 255));
            var rightPanel = new AlignmentPanel(blockSize, new CCColor4B(100, 100, 200, 255));

            leftPanel.IgnoreAnchorPointForPosition = false;
            centerPanel.IgnoreAnchorPointForPosition = false;
            rightPanel.IgnoreAnchorPointForPosition = false;

            leftPanel.AnchorPoint = CCPoint.AnchorMiddleLeft;
            centerPanel.AnchorPoint = CCPoint.AnchorMiddleLeft;
            rightPanel.AnchorPoint = CCPoint.AnchorMiddleLeft;

            leftPanel.Position = new CCPoint(0, s.Height / 2);
            centerPanel.Position = new CCPoint(blockSize.Width, s.Height / 2);
            rightPanel.Position = new CCPoint(blockSize.Width * 2, s.Height / 2);

            AddChild(leftPanel, -1);
            AddChild(rightPanel, -1);
            AddChild(centerPanel, -1);

            updateAlignment();
        }

        public LabelTTFTest()
        {
            var blockSize = new CCSize(200, 160);
			var s = Layer.VisibleBoundsWorldspace.Size;

			var colorLayer = new CCLayerColor(new CCColor4B(100, 100, 100, 255));
			colorLayer.AnchorPoint = CCPoint.Zero;
            colorLayer.Position = new CCPoint((s.Width - blockSize.Width) / 2, (s.Height - blockSize.Height) / 2);

            AddChild(colorLayer);

			CCMenuItemFont.FontSize = 32;
			CCMenuItemFont.FontName = "MarkerFelt";

			var menu = new CCMenu(
				new CCMenuItemFont("Left", setAlignmentLeft),
				new CCMenuItemFont("Center", setAlignmentCenter),
				new CCMenuItemFont("Right", setAlignmentRight)
                );
            menu.AlignItemsVertically(4);
            menu.Position = new CCPoint(50, s.Height / 2 - 20);
            AddChild(menu);

            menu = new CCMenu(
				new CCMenuItemFont("Top", setAlignmentTop),
				new CCMenuItemFont("Middle", setAlignmentMiddle),
				new CCMenuItemFont("Bottom", setAlignmentBottom)
                );
            menu.AlignItemsVertically(4);
            menu.Position = new CCPoint(s.Width - 50, s.Height / 2 - 20);
            AddChild(menu);

            m_plabel = null;
            m_eHorizAlign = CCTextAlignment.Left;
            m_eVertAlign = CCVerticalTextAlignment.Top;

            updateAlignment();
        }

        public LabelTTFTest()
        {
            var blockSize = new CCSize(200, 160);
            CCSize s = CCDirector.SharedDirector.WinSize;

            CCLayerColor colorLayer = new CCLayerColor(new CCColor4B(100, 100, 100, 255), blockSize.Width, blockSize.Height);
            colorLayer.AnchorPoint = new CCPoint(0, 0);
            colorLayer.Position = new CCPoint((s.Width - blockSize.Width) / 2, (s.Height - blockSize.Height) / 2);

            AddChild(colorLayer);

            CCMenuItemFont.FontSize = 30;
            CCMenu menu = new CCMenu(
                new CCMenuItemFont("Left", setAlignmentLeft),
                new CCMenuItemFont("Center", setAlignmentCenter),
                new CCMenuItemFont("Right", setAlignmentRight)
                );
            menu.AlignItemsVerticallyWithPadding(4);
            menu.Position = new CCPoint(50, s.Height / 2 - 20);
            AddChild(menu);

            menu = new CCMenu(
                new CCMenuItemFont("Top", setAlignmentTop),
                new CCMenuItemFont("Middle", setAlignmentMiddle),
                new CCMenuItemFont("Bottom", setAlignmentBottom)
                );
            menu.AlignItemsVerticallyWithPadding(4);
            menu.Position = new CCPoint(s.Width - 50, s.Height / 2 - 20);
            AddChild(menu);

            m_plabel = null;
            m_eHorizAlign = CCTextAlignment.CCTextAlignmentLeft;
            m_eVertAlign = CCVerticalTextAlignment.CCVerticalTextAlignmentTop;

            updateAlignment();
        }

 public CCLabelTTF (string text, string fontName, float fontSize, CCSize dimensions, CCTextAlignment hAlignment) :
     this (text, fontName, fontSize, dimensions, hAlignment, CCVerticalTextAlignment.Top)
 { }

 public bool InitWithString(string label, string fontName, float fontSize, CCSize dimensions, CCTextAlignment alignment)
 {
     return InitWithString(label, fontName, fontSize, dimensions, alignment, CCVerticalTextAlignment.Top);
 }

 public CCLabelBMFont(string str, string fntFile, float width, CCTextAlignment alignment, CCPoint imageOffset)
 {
     InitWithString(str, fntFile, new CCSize(width, 0), alignment, CCVerticalTextAlignment.Top, imageOffset, null);
 }

        protected virtual bool InitWithString(string theString, string fntFile, CCSize dimentions, CCTextAlignment hAlignment, CCVerticalTextAlignment vAlignment,
                                              CCPoint imageOffset, CCTexture2D texture)
        {
            Debug.Assert(m_pConfiguration == null, "re-init is no longer supported");
            Debug.Assert((theString == null && fntFile == null) || (theString != null && fntFile != null),
                         "Invalid params for CCLabelBMFont");

            if (!String.IsNullOrEmpty(fntFile))
            {
                CCBMFontConfiguration newConf = FNTConfigLoadFile(fntFile);
                if (newConf == null)
                {
                    CCLog.Log("CCLabelBMFont: Impossible to create font. Please check file: '{0}'", fntFile);
                    return false;
                }

                m_pConfiguration = newConf;

                m_sFntFile = fntFile;

                if (texture == null)
                {
                    try
                    {
                        texture = CCTextureCache.SharedTextureCache.AddImage(m_pConfiguration.AtlasName);
                    }
                    catch (Exception)
                    {
                        // Try the 'images' ref location just in case.
                        try
                        {
                            texture =
                                CCTextureCache.SharedTextureCache.AddImage(System.IO.Path.Combine("images",
                                                                                                  m_pConfiguration
                                                                                                      .AtlasName));
                        }
                        catch (Exception)
                        {
                            // Lastly, try <font_path>/images/<font_name>
                            string dir = System.IO.Path.GetDirectoryName(m_pConfiguration.AtlasName);
                            string fname = System.IO.Path.GetFileName(m_pConfiguration.AtlasName);
                            string newName = System.IO.Path.Combine(System.IO.Path.Combine(dir, "images"), fname);
                            texture = CCTextureCache.SharedTextureCache.AddImage(newName);
                        }
                    }
                }
            }
            else
            {
                texture = new CCTexture2D();
            }

            if (String.IsNullOrEmpty(theString))
            {
                theString = String.Empty;
            }

            if (base.InitWithTexture(texture, theString.Length))
            {
                m_tDimensions = dimentions;

                m_pHAlignment = hAlignment;
                m_pVAlignment = vAlignment;

                m_cDisplayedOpacity = m_cRealOpacity = 255;
                m_tDisplayedColor = m_tRealColor = CCTypes.CCWhite;
                m_bCascadeOpacityEnabled = true;
                m_bCascadeColorEnabled = true;

                m_obContentSize = CCSize.Zero;

                m_bIsOpacityModifyRGB = m_pobTextureAtlas.Texture.HasPremultipliedAlpha;
                AnchorPoint = new CCPoint(0.5f, 0.5f);

                m_tImageOffset = imageOffset;

                m_pReusedChar = new CCSprite();
                m_pReusedChar.InitWithTexture(m_pobTextureAtlas.Texture, CCRect.Zero, false);
                m_pReusedChar.BatchNode = this;

                SetString(theString, true);

                return true;
            }
            return false;
        }

        protected void InitBMFont(string theString, string fntFile, CCSize dimensions, CCTextAlignment hAlignment, CCVerticalTextAlignment vAlignment, 
            CCPoint imageOffset, CCTexture2D texture)
        {
            Debug.Assert(FontConfiguration == null, "re-init is no longer supported");
            Debug.Assert((theString == null && fntFile == null) || (theString != null && fntFile != null),
                "Invalid params for CCLabelBMFont");

            if (!String.IsNullOrEmpty(fntFile))
            {
                try
                {
                    FontAtlas = CCFontAtlasCache.GetFontAtlasFNT(fntFile, imageOffset);
                }
                catch {}

                if (FontAtlas == null)
                {
                    CCLog.Log("Bitmap Font CCLabel: Impossible to create font. Please check file: '{0}'", fntFile);
                    return;
                }

            }

            AnchorPoint = CCPoint.AnchorMiddle;

            FontConfiguration = CCBMFontConfiguration.FontConfigurationWithFile(fntFile);

            LabelType = CCLabelType.BitMapFont;

            if (String.IsNullOrEmpty(theString))
            {
                theString = String.Empty;
            }

            // Initialize the TextureAtlas along with children.
            var capacity = theString.Length;

            BlendFunc = CCBlendFunc.AlphaBlend;

            if (capacity == 0)
            {
                capacity = defaultSpriteBatchCapacity;
            }

            UpdateBlendFunc();

            // no lazy alloc in this node
            Children = new CCRawList<CCNode>(capacity);
            Descendants = new CCRawList<CCSprite>(capacity);

            this.labelDimensions = dimensions;

            horzAlignment = hAlignment;
            vertAlignment = vAlignment;

            IsOpacityCascaded = true;

            // We use base here so we do not trigger an update internally.
            base.ContentSize = CCSize.Zero;

            IsColorModifiedByOpacity = TextureAtlas.Texture.HasPremultipliedAlpha;
            AnchorPoint = CCPoint.AnchorMiddle;

            ImageOffset = imageOffset;

            Text = theString;
        }

        ///<summary>
        /// Initializes a texture from a string with dimensions, alignment, font name and font size
        /// </summary>
        public bool initWithString(string text, CCSize dimensions, CCTextAlignment alignment, string fontName, float fontSize, Color fgColor, Color bgColor)
        {
            if (dimensions.width < 0 || dimensions.height < 0)
            {
                return false;
            }

            if (string.IsNullOrEmpty(text))
            {
                return false;
            }

            SpriteFont font = null;
            try
            {
                font = CCApplication.sharedApplication().content.Load<SpriteFont>(@"fonts/" + fontName);
            }
            catch (Exception)
            {
                if (fontName.EndsWith(".spritefont", StringComparison.OrdinalIgnoreCase))
                {
                    fontName = fontName.Substring(0, fontName.Length - 11);
                    font = CCApplication.sharedApplication().content.Load<SpriteFont>(@"fonts/" + fontName);
                }
            }
            if (CCSize.CCSizeEqualToSize(dimensions, new CCSize()))
            {
                Vector2 temp = font.MeasureString(text);
                dimensions.width = temp.X;
                dimensions.height = temp.Y;
            }

            Vector2 origin;
            if (CCTextAlignment.CCTextAlignmentRight == alignment)
            {
                origin = new Vector2(-(dimensions.width - font.MeasureString(text).X), 0);
            }
            else if (CCTextAlignment.CCTextAlignmentCenter == alignment)
            {
                origin = new Vector2(-(dimensions.width - font.MeasureString(text).X) / 2.0f, 0);
            }
            else
            {
                origin = new Vector2(0, 0);
            }

            float scale = 1.0f;//need refer fontSize;
            try
            {
            CCApplication app = CCApplication.sharedApplication();

            //*  for render to texture
            RenderTarget2D renderTarget = new RenderTarget2D(app.graphics.GraphicsDevice, (int)dimensions.width, (int)dimensions.height);
            app.graphics.GraphicsDevice.SetRenderTarget(renderTarget);
                app.graphics.GraphicsDevice.Clear(bgColor);

            app.spriteBatch.Begin();
                app.spriteBatch.DrawString(font, text, new Vector2(0, 0), fgColor, 0.0f, origin, scale, SpriteEffects.None, 0.0f);
            app.spriteBatch.End();

            app.graphics.GraphicsDevice.SetRenderTarget(null);

            // to copy the rendered target data to a plain texture(to the memory)
            Color[] colors1D = new Color[renderTarget.Width * renderTarget.Height];
            renderTarget.GetData(colors1D);
            texture2D = new Texture2D(app.GraphicsDevice, renderTarget.Width, renderTarget.Height);
            texture2D.SetData(colors1D);

            return initWithTexture(texture2D);
            }
            catch (Exception ex)
            {
                System.Diagnostics.Debug.WriteLine(ex.ToString());
            }
            return (false);
        }

 private void setAlignmentLeft(object pSender)
 {
     m_eHorizAlign = CCTextAlignment.Left;
     updateAlignment();
 }

 /// <summary>
 /// Initializes a new instance of the <see cref="CocosSharp.CCLabel"/> class.
 /// </summary>
 /// <param name="str">Initial text of the label.</param>
 /// <param name="fntFile">Font definition file to use.</param>
 /// <param name="dimensions">Dimensions that the label should use to layout it's text.</param>
 /// <param name="hAlignment">Horizontal alignment of the text.</param>
 /// <param name="vAlignement">Vertical alignement of the text.</param>
 /// <param name="imageOffset">Image offset.</param>
 /// <param name="texture">Texture Atlas to be used.</param>
 public CCLabel(string str, string fntFile, CCSize dimensions, CCTextAlignment hAlignment, CCVerticalTextAlignment vAlignment, 
     CCPoint imageOffset, CCTexture2D texture)
     : this (str, fntFile, dimensions, 
         new CCLabelFormat() { Alignment = hAlignment, LineAlignment = vAlignment}, 
         imageOffset, texture)
 {   }

        /**
        Extensions to make it easy to create a CCTexture2D object from a string of text.
        Note that the generated textures are of type A8 - use the blending mode (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA).
        */

        public bool initWithString(string text, CCSize dimensions, CCTextAlignment alignment, string fontName, float fontSize)
        {
            return (initWithString(text, dimensions, alignment, fontName, fontSize, Color.YellowGreen, g_MyBlack));
        }

 private void setAlignmentCenter(object pSender)
 {
     m_eHorizAlign = CCTextAlignment.CCTextAlignmentCenter;
     updateAlignment();
 }