var SetTransform = require('../../../renderer/canvas/utils/SetTransform'); 
var DynamicBitmapTextCanvasRenderer = function (renderer, src, camera, parentMatrix){ 
var text = src._text; 
var textLength = _AN_Read_length('length', text); 
var ctx = renderer.currentContext; 
if (textLength === 0 || !SetTransform(renderer, ctx, src, camera, parentMatrix)) { 
return ; 
} 
var textureFrame = src.frame; 
var displayCallback = src.displayCallback; 
var callbackData = src.callbackData; 
var chars = src.fontData.chars; 
var lineHeight = src.fontData.lineHeight; 
var letterSpacing = src._letterSpacing; 
var xAdvance = 0; 
var yAdvance = 0; 
var charCode = 0; 
var glyph = null ; 
var glyphX = 0; 
var glyphY = 0; 
var glyphW = 0; 
var glyphH = 0; 
var x = 0; 
var y = 0; 
var lastGlyph = null ; 
var lastCharCode = 0; 
var image = src.frame.source.image; 
var textureX = textureFrame.cutX; 
var textureY = textureFrame.cutY; 
var rotation = 0; 
var scale = 0; 
var baseScale = (src._fontSize / src.fontData.size); 
var align = src._align; 
var currentLine = 0; 
var lineOffsetX = 0; 
src.getTextBounds(false ); 
var lineData = src._bounds.lines; 
if (align === 1) { 
lineOffsetX = (lineData.longest - lineData.lengths[0]) / 2; 
} 
 else if (align === 2) { 
lineOffsetX = (lineData.longest - lineData.lengths[0]); 
} 
ctx.translate(- src.displayOriginX, - src.displayOriginY); 
var roundPixels = camera.roundPixels; 
if (src.cropWidth > 0 && src.cropHeight > 0) { 
ctx.beginPath(); 
ctx.rect(0, 0, src.cropWidth, src.cropHeight); 
ctx.clip(); 
} 
for (var i = 0; 
i < textLength; i++ ){ 
scale = baseScale; 
rotation = 0; 
charCode = text.charCodeAt(i); 
if (charCode === 10) { 
currentLine++ ; 
if (align === 1) { 
lineOffsetX = (lineData.longest - lineData.lengths[currentLine]) / 2; 
} 
 else if (align === 2) { 
lineOffsetX = (lineData.longest - lineData.lengths[currentLine]); 
} 
xAdvance = 0; 
yAdvance += lineHeight; 
lastGlyph = null ; 
continue ; 
} 
glyph = chars[charCode]; 
if (!glyph) { 
continue ; 
} 
glyphX = textureX + glyph.x; 
glyphY = textureY + glyph.y; 
glyphW = glyph.width; 
glyphH = glyph.height; 
x = (glyph.xOffset + xAdvance) - src.scrollX; 
y = (glyph.yOffset + yAdvance) - src.scrollY; 
if (lastGlyph !== null ) { 
var kerningOffset = glyph.kerning[lastCharCode]; 
x += (kerningOffset !== undefined)? kerningOffset: 0; 
} 
if (displayCallback) { 
callbackData.index = i; 
callbackData.charCode = charCode; 
callbackData.x = x; 
callbackData.y = y; 
callbackData.scale = scale; 
callbackData.rotation = rotation; 
callbackData.data = glyph.data; 
var output = displayCallback(callbackData); 
x = output.x; 
y = output.y; 
scale = output.scale; 
rotation = output.rotation; 
} 
x *= scale; 
y *= scale; 
x += lineOffsetX; 
xAdvance += glyph.xAdvance + letterSpacing; 
lastGlyph = glyph; 
lastCharCode = charCode; 
if (glyphW === 0 || glyphH === 0 || charCode === 32) { 
continue ; 
} 
if (roundPixels) { 
x = Math.round(x); 
y = Math.round(y); 
} 
ctx.save(); 
ctx.translate(x, y); 
ctx.rotate(rotation); 
ctx.scale(scale, scale); 
ctx.drawImage(image, glyphX, glyphY, glyphW, glyphH, 0, 0, glyphW, glyphH); 
ctx.restore(); 
} 
ctx.restore(); 
} 
; 
module.exports = DynamicBitmapTextCanvasRenderer;