Fixed new qrcode library inclusion

src/qr/alignpat.js

@@ -0,0 +1,279 @@
+/*
+  Ported to JavaScript by Lazar Laszlo 2011 
+  
+  lazarsoft@gmail.com, www.lazarsoft.info
+  
+*/
+
+/*
+*
+* Copyright 2007 ZXing authors
+*
+* Licensed 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.
+*/
+
+
+function AlignmentPattern(posX, posY,  estimatedModuleSize)
+{
+	this.x=posX;
+	this.y=posY;
+	this.count = 1;
+	this.estimatedModuleSize = estimatedModuleSize;
+
+	this.__defineGetter__("EstimatedModuleSize", function()
+	{
+		return this.estimatedModuleSize;
+	}); 
+	this.__defineGetter__("Count", function()
+	{
+		return this.count;
+	});
+	this.__defineGetter__("X", function()
+	{
+		return Math.floor(this.x);
+	});
+	this.__defineGetter__("Y", function()
+	{
+		return Math.floor(this.y);
+	});
+	this.incrementCount = function()
+	{
+		this.count++;
+	}
+	this.aboutEquals=function( moduleSize,  i,  j)
+		{
+			if (Math.abs(i - this.y) <= moduleSize && Math.abs(j - this.x) <= moduleSize)
+			{
+				var moduleSizeDiff = Math.abs(moduleSize - this.estimatedModuleSize);
+				return moduleSizeDiff <= 1.0 || moduleSizeDiff / this.estimatedModuleSize <= 1.0;
+			}
+			return false;
+		}
+
+}
+
+function AlignmentPatternFinder( image,  startX,  startY,  width,  height,  moduleSize,  resultPointCallback)
+{
+	this.image = image;
+	this.possibleCenters = new Array();
+	this.startX = startX;
+	this.startY = startY;
+	this.width = width;
+	this.height = height;
+	this.moduleSize = moduleSize;
+	this.crossCheckStateCount = new Array(0,0,0);
+	this.resultPointCallback = resultPointCallback;
+
+	this.centerFromEnd=function(stateCount,  end)
+		{
+			return  (end - stateCount[2]) - stateCount[1] / 2.0;
+		}
+	this.foundPatternCross = function(stateCount)
+		{
+			var moduleSize = this.moduleSize;
+			var maxVariance = moduleSize / 2.0;
+			for (var i = 0; i < 3; i++)
+			{
+				if (Math.abs(moduleSize - stateCount[i]) >= maxVariance)
+				{
+					return false;
+				}
+			}
+			return true;
+		}
+
+	this.crossCheckVertical=function( startI,  centerJ,  maxCount,  originalStateCountTotal)
+		{
+			var image = this.image;
+
+			var maxI = qrcode.height;
+			var stateCount = this.crossCheckStateCount;
+			stateCount[0] = 0;
+			stateCount[1] = 0;
+			stateCount[2] = 0;
+
+			// Start counting up from center
+			var i = startI;
+			while (i >= 0 && image[centerJ + i*qrcode.width] && stateCount[1] <= maxCount)
+			{
+				stateCount[1]++;
+				i--;
+			}
+			// If already too many modules in this state or ran off the edge:
+			if (i < 0 || stateCount[1] > maxCount)
+			{
+				return NaN;
+			}
+			while (i >= 0 && !image[centerJ + i*qrcode.width] && stateCount[0] <= maxCount)
+			{
+				stateCount[0]++;
+				i--;
+			}
+			if (stateCount[0] > maxCount)
+			{
+				return NaN;
+			}
+
+			// Now also count down from center
+			i = startI + 1;
+			while (i < maxI && image[centerJ + i*qrcode.width] && stateCount[1] <= maxCount)
+			{
+				stateCount[1]++;
+				i++;
+			}
+			if (i == maxI || stateCount[1] > maxCount)
+			{
+				return NaN;
+			}
+			while (i < maxI && !image[centerJ + i*qrcode.width] && stateCount[2] <= maxCount)
+			{
+				stateCount[2]++;
+				i++;
+			}
+			if (stateCount[2] > maxCount)
+			{
+				return NaN;
+			}
+
+			var stateCountTotal = stateCount[0] + stateCount[1] + stateCount[2];
+			if (5 * Math.abs(stateCountTotal - originalStateCountTotal) >= 2 * originalStateCountTotal)
+			{
+				return NaN;
+			}
+
+			return this.foundPatternCross(stateCount)?this.centerFromEnd(stateCount, i):NaN;
+		}
+
+	this.handlePossibleCenter=function( stateCount,  i,  j)
+		{
+			var stateCountTotal = stateCount[0] + stateCount[1] + stateCount[2];
+			var centerJ = this.centerFromEnd(stateCount, j);
+			var centerI = this.crossCheckVertical(i, Math.floor (centerJ), 2 * stateCount[1], stateCountTotal);
+			if (!isNaN(centerI))
+			{
+				var estimatedModuleSize = (stateCount[0] + stateCount[1] + stateCount[2]) / 3.0;
+				var max = this.possibleCenters.length;
+				for (var index = 0; index < max; index++)
+				{
+					var center =  this.possibleCenters[index];
+					// Look for about the same center and module size:
+					if (center.aboutEquals(estimatedModuleSize, centerI, centerJ))
+					{
+						return new AlignmentPattern(centerJ, centerI, estimatedModuleSize);
+					}
+				}
+				// Hadn't found this before; save it
+				var point = new AlignmentPattern(centerJ, centerI, estimatedModuleSize);
+				this.possibleCenters.push(point);
+				if (this.resultPointCallback != null)
+				{
+					this.resultPointCallback.foundPossibleResultPoint(point);
+				}
+			}
+			return null;
+		}
+
+	this.find = function()
+	{
+			var startX = this.startX;
+			var height = this.height;
+			var maxJ = startX + width;
+			var middleI = startY + (height >> 1);
+			// We are looking for black/white/black modules in 1:1:1 ratio;
+			// this tracks the number of black/white/black modules seen so far
+			var stateCount = new Array(0,0,0);
+			for (var iGen = 0; iGen < height; iGen++)
+			{
+				// Search from middle outwards
+				var i = middleI + ((iGen & 0x01) == 0?((iGen + 1) >> 1):- ((iGen + 1) >> 1));
+				stateCount[0] = 0;
+				stateCount[1] = 0;
+				stateCount[2] = 0;
+				var j = startX;
+				// Burn off leading white pixels before anything else; if we start in the middle of
+				// a white run, it doesn't make sense to count its length, since we don't know if the
+				// white run continued to the left of the start point
+				while (j < maxJ && !image[j + qrcode.width* i])
+				{
+					j++;
+				}
+				var currentState = 0;
+				while (j < maxJ)
+				{
+					if (image[j + i*qrcode.width])
+					{
+						// Black pixel
+						if (currentState == 1)
+						{
+							// Counting black pixels
+							stateCount[currentState]++;
+						}
+						else
+						{
+							// Counting white pixels
+							if (currentState == 2)
+							{
+								// A winner?
+								if (this.foundPatternCross(stateCount))
+								{
+									// Yes
+									var confirmed = this.handlePossibleCenter(stateCount, i, j);
+									if (confirmed != null)
+									{
+										return confirmed;
+									}
+								}
+								stateCount[0] = stateCount[2];
+								stateCount[1] = 1;
+								stateCount[2] = 0;
+								currentState = 1;
+							}
+							else
+							{
+								stateCount[++currentState]++;
+							}
+						}
+					}
+					else
+					{
+						// White pixel
+						if (currentState == 1)
+						{
+							// Counting black pixels
+							currentState++;
+						}
+						stateCount[currentState]++;
+					}
+					j++;
+				}
+				if (this.foundPatternCross(stateCount))
+				{
+					var confirmed = this.handlePossibleCenter(stateCount, i, maxJ);
+					if (confirmed != null)
+					{
+						return confirmed;
+					}
+				}
+			}
+
+			// Hmm, nothing we saw was observed and confirmed twice. If we had
+			// any guess at all, return it.
+			if (!(this.possibleCenters.length == 0))
+			{
+				return  this.possibleCenters[0];
+			}
+
+			throw "Couldn't find enough alignment patterns";
+		}
+
+}

src/qr/bitmat.js

@@ -0,0 +1,111 @@
+/*
+  Ported to JavaScript by Lazar Laszlo 2011 
+  
+  lazarsoft@gmail.com, www.lazarsoft.info
+  
+*/
+
+/*
+*
+* Copyright 2007 ZXing authors
+*
+* Licensed 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.
+*/
+
+
+function BitMatrix( width,  height)
+{
+	if(!height)
+		height=width;
+	if (width < 1 || height < 1)
+	{
+		throw "Both dimensions must be greater than 0";
+	}
+	this.width = width;
+	this.height = height;
+	var rowSize = width >> 5;
+	if ((width & 0x1f) != 0)
+	{
+		rowSize++;
+	}
+	this.rowSize = rowSize;
+	this.bits = new Array(rowSize * height);
+	for(var i=0;i<this.bits.length;i++)
+		this.bits[i]=0;
+
+	this.__defineGetter__("Width", function()
+	{
+		return this.width;
+	});
+	this.__defineGetter__("Height", function()
+	{
+		return this.height;
+	});
+	this.__defineGetter__("Dimension", function()
+	{
+		if (this.width != this.height)
+		{
+			throw "Can't call getDimension() on a non-square matrix";
+		}
+		return this.width;
+	});
+
+	this.get_Renamed=function( x,  y)
+		{
+			var offset = y * this.rowSize + (x >> 5);
+			return ((URShift(this.bits[offset], (x & 0x1f))) & 1) != 0;
+		}
+	this.set_Renamed=function( x,  y)
+		{
+			var offset = y * this.rowSize + (x >> 5);
+			this.bits[offset] |= 1 << (x & 0x1f);
+		}
+	this.flip=function( x,  y)
+		{
+			var offset = y * this.rowSize + (x >> 5);
+			this.bits[offset] ^= 1 << (x & 0x1f);
+		}
+	this.clear=function()
+		{
+			var max = this.bits.length;
+			for (var i = 0; i < max; i++)
+			{
+				this.bits[i] = 0;
+			}
+		}
+	this.setRegion=function( left,  top,  width,  height)
+		{
+			if (top < 0 || left < 0)
+			{
+				throw "Left and top must be nonnegative";
+			}
+			if (height < 1 || width < 1)
+			{
+				throw "Height and width must be at least 1";
+			}
+			var right = left + width;
+			var bottom = top + height;
+			if (bottom > this.height || right > this.width)
+			{
+				throw "The region must fit inside the matrix";
+			}
+			for (var y = top; y < bottom; y++)
+			{
+				var offset = y * this.rowSize;
+				for (var x = left; x < right; x++)
+				{
+					this.bits[offset + (x >> 5)] |= 1 << (x & 0x1f);
+				}
+			}
+		}
+}