1879 lines
61 KiB
JavaScript
Executable File
1879 lines
61 KiB
JavaScript
Executable File
/*!
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* ngImgCrop v0.3.2
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* https://github.com/alexk111/ngImgCrop
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*
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* Copyright (c) 2014 Alex Kaul
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* License: MIT
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*
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* Generated at Wednesday, December 3rd, 2014, 3:54:12 PM
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*/
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(function() {
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'use strict';
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var crop = angular.module('ngImgCrop', []);
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crop.factory('cropAreaCircle', ['cropArea', function(CropArea) {
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var CropAreaCircle = function() {
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CropArea.apply(this, arguments);
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this._boxResizeBaseSize = 20;
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this._boxResizeNormalRatio = 0.9;
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this._boxResizeHoverRatio = 1.2;
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this._iconMoveNormalRatio = 0.9;
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this._iconMoveHoverRatio = 1.2;
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this._boxResizeNormalSize = this._boxResizeBaseSize*this._boxResizeNormalRatio;
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this._boxResizeHoverSize = this._boxResizeBaseSize*this._boxResizeHoverRatio;
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this._posDragStartX=0;
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this._posDragStartY=0;
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this._posResizeStartX=0;
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this._posResizeStartY=0;
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this._posResizeStartSize=0;
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this._boxResizeIsHover = false;
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this._areaIsHover = false;
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this._boxResizeIsDragging = false;
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this._areaIsDragging = false;
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};
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CropAreaCircle.prototype = new CropArea();
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CropAreaCircle.prototype._calcCirclePerimeterCoords=function(angleDegrees) {
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var hSize=this._size/2;
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var angleRadians=angleDegrees * (Math.PI / 180),
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circlePerimeterX=this._x + hSize * Math.cos(angleRadians),
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circlePerimeterY=this._y + hSize * Math.sin(angleRadians);
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return [circlePerimeterX, circlePerimeterY];
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};
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CropAreaCircle.prototype._calcResizeIconCenterCoords=function() {
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return this._calcCirclePerimeterCoords(-45);
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};
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CropAreaCircle.prototype._isCoordWithinArea=function(coord) {
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return Math.sqrt((coord[0]-this._x)*(coord[0]-this._x) + (coord[1]-this._y)*(coord[1]-this._y)) < this._size/2;
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};
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CropAreaCircle.prototype._isCoordWithinBoxResize=function(coord) {
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var resizeIconCenterCoords=this._calcResizeIconCenterCoords();
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var hSize=this._boxResizeHoverSize/2;
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return(coord[0] > resizeIconCenterCoords[0] - hSize && coord[0] < resizeIconCenterCoords[0] + hSize &&
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coord[1] > resizeIconCenterCoords[1] - hSize && coord[1] < resizeIconCenterCoords[1] + hSize);
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};
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CropAreaCircle.prototype._drawArea=function(ctx,centerCoords,size){
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ctx.arc(centerCoords[0],centerCoords[1],size/2,0,2*Math.PI);
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};
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CropAreaCircle.prototype.draw=function() {
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CropArea.prototype.draw.apply(this, arguments);
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// draw move icon
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this._cropCanvas.drawIconMove([this._x,this._y], this._areaIsHover?this._iconMoveHoverRatio:this._iconMoveNormalRatio);
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// draw resize cubes
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this._cropCanvas.drawIconResizeBoxNESW(this._calcResizeIconCenterCoords(), this._boxResizeBaseSize, this._boxResizeIsHover?this._boxResizeHoverRatio:this._boxResizeNormalRatio);
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};
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CropAreaCircle.prototype.processMouseMove=function(mouseCurX, mouseCurY) {
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var cursor='default';
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var res=false;
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this._boxResizeIsHover = false;
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this._areaIsHover = false;
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if (this._areaIsDragging) {
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this._x = mouseCurX - this._posDragStartX;
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this._y = mouseCurY - this._posDragStartY;
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this._areaIsHover = true;
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cursor='move';
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res=true;
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this._events.trigger('area-move');
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} else if (this._boxResizeIsDragging) {
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cursor = 'nesw-resize';
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var iFR, iFX, iFY;
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iFX = mouseCurX - this._posResizeStartX;
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iFY = this._posResizeStartY - mouseCurY;
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if(iFX>iFY) {
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iFR = this._posResizeStartSize + iFY*2;
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} else {
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iFR = this._posResizeStartSize + iFX*2;
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}
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this._size = Math.max(this._minSize, iFR);
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this._boxResizeIsHover = true;
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res=true;
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this._events.trigger('area-resize');
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} else if (this._isCoordWithinBoxResize([mouseCurX,mouseCurY])) {
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cursor = 'nesw-resize';
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this._areaIsHover = false;
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this._boxResizeIsHover = true;
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res=true;
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} else if(this._isCoordWithinArea([mouseCurX,mouseCurY])) {
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cursor = 'move';
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this._areaIsHover = true;
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res=true;
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}
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this._dontDragOutside();
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angular.element(this._ctx.canvas).css({'cursor': cursor});
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return res;
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};
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CropAreaCircle.prototype.processMouseDown=function(mouseDownX, mouseDownY) {
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if (this._isCoordWithinBoxResize([mouseDownX,mouseDownY])) {
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this._areaIsDragging = false;
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this._areaIsHover = false;
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this._boxResizeIsDragging = true;
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this._boxResizeIsHover = true;
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this._posResizeStartX=mouseDownX;
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this._posResizeStartY=mouseDownY;
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this._posResizeStartSize = this._size;
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this._events.trigger('area-resize-start');
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} else if (this._isCoordWithinArea([mouseDownX,mouseDownY])) {
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this._areaIsDragging = true;
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this._areaIsHover = true;
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this._boxResizeIsDragging = false;
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this._boxResizeIsHover = false;
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this._posDragStartX = mouseDownX - this._x;
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this._posDragStartY = mouseDownY - this._y;
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this._events.trigger('area-move-start');
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}
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};
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CropAreaCircle.prototype.processMouseUp=function(/*mouseUpX, mouseUpY*/) {
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if(this._areaIsDragging) {
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this._areaIsDragging = false;
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this._events.trigger('area-move-end');
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}
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if(this._boxResizeIsDragging) {
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this._boxResizeIsDragging = false;
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this._events.trigger('area-resize-end');
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}
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this._areaIsHover = false;
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this._boxResizeIsHover = false;
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this._posDragStartX = 0;
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this._posDragStartY = 0;
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};
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return CropAreaCircle;
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}]);
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crop.factory('cropAreaSquare', ['cropArea', function(CropArea) {
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var CropAreaSquare = function() {
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CropArea.apply(this, arguments);
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this._resizeCtrlBaseRadius = 10;
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this._resizeCtrlNormalRatio = 0.75;
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this._resizeCtrlHoverRatio = 1;
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this._iconMoveNormalRatio = 0.9;
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this._iconMoveHoverRatio = 1.2;
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this._resizeCtrlNormalRadius = this._resizeCtrlBaseRadius*this._resizeCtrlNormalRatio;
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this._resizeCtrlHoverRadius = this._resizeCtrlBaseRadius*this._resizeCtrlHoverRatio;
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this._posDragStartX=0;
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this._posDragStartY=0;
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this._posResizeStartX=0;
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this._posResizeStartY=0;
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this._posResizeStartSize=0;
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this._resizeCtrlIsHover = -1;
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this._areaIsHover = false;
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this._resizeCtrlIsDragging = -1;
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this._areaIsDragging = false;
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};
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CropAreaSquare.prototype = new CropArea();
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CropAreaSquare.prototype._calcSquareCorners=function() {
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var hSize=this._size/2;
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return [
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[this._x-hSize, this._y-hSize],
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[this._x+hSize, this._y-hSize],
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[this._x-hSize, this._y+hSize],
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[this._x+hSize, this._y+hSize]
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];
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};
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CropAreaSquare.prototype._calcSquareDimensions=function() {
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var hSize=this._size/2;
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return {
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left: this._x-hSize,
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top: this._y-hSize,
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right: this._x+hSize,
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bottom: this._y+hSize
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};
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};
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CropAreaSquare.prototype._isCoordWithinArea=function(coord) {
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var squareDimensions=this._calcSquareDimensions();
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return (coord[0]>=squareDimensions.left&&coord[0]<=squareDimensions.right&&coord[1]>=squareDimensions.top&&coord[1]<=squareDimensions.bottom);
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};
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CropAreaSquare.prototype._isCoordWithinResizeCtrl=function(coord) {
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var resizeIconsCenterCoords=this._calcSquareCorners();
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var res=-1;
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for(var i=0,len=resizeIconsCenterCoords.length;i<len;i++) {
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var resizeIconCenterCoords=resizeIconsCenterCoords[i];
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if(coord[0] > resizeIconCenterCoords[0] - this._resizeCtrlHoverRadius && coord[0] < resizeIconCenterCoords[0] + this._resizeCtrlHoverRadius &&
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coord[1] > resizeIconCenterCoords[1] - this._resizeCtrlHoverRadius && coord[1] < resizeIconCenterCoords[1] + this._resizeCtrlHoverRadius) {
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res=i;
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break;
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}
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}
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return res;
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};
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CropAreaSquare.prototype._drawArea=function(ctx,centerCoords,size){
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var hSize=size/2;
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ctx.rect(centerCoords[0]-hSize,centerCoords[1]-hSize,size,size);
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};
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CropAreaSquare.prototype.draw=function() {
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CropArea.prototype.draw.apply(this, arguments);
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// draw move icon
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this._cropCanvas.drawIconMove([this._x,this._y], this._areaIsHover?this._iconMoveHoverRatio:this._iconMoveNormalRatio);
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// draw resize cubes
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var resizeIconsCenterCoords=this._calcSquareCorners();
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for(var i=0,len=resizeIconsCenterCoords.length;i<len;i++) {
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var resizeIconCenterCoords=resizeIconsCenterCoords[i];
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this._cropCanvas.drawIconResizeCircle(resizeIconCenterCoords, this._resizeCtrlBaseRadius, this._resizeCtrlIsHover===i?this._resizeCtrlHoverRatio:this._resizeCtrlNormalRatio);
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}
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};
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CropAreaSquare.prototype.processMouseMove=function(mouseCurX, mouseCurY) {
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var cursor='default';
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var res=false;
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this._resizeCtrlIsHover = -1;
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this._areaIsHover = false;
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if (this._areaIsDragging) {
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this._x = mouseCurX - this._posDragStartX;
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this._y = mouseCurY - this._posDragStartY;
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this._areaIsHover = true;
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cursor='move';
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res=true;
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this._events.trigger('area-move');
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} else if (this._resizeCtrlIsDragging>-1) {
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var xMulti, yMulti;
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switch(this._resizeCtrlIsDragging) {
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case 0: // Top Left
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xMulti=-1;
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yMulti=-1;
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cursor = 'nwse-resize';
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break;
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case 1: // Top Right
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xMulti=1;
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yMulti=-1;
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cursor = 'nesw-resize';
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break;
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case 2: // Bottom Left
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xMulti=-1;
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yMulti=1;
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cursor = 'nesw-resize';
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break;
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case 3: // Bottom Right
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xMulti=1;
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yMulti=1;
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cursor = 'nwse-resize';
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break;
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}
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var iFX = (mouseCurX - this._posResizeStartX)*xMulti;
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var iFY = (mouseCurY - this._posResizeStartY)*yMulti;
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var iFR;
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if(iFX>iFY) {
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iFR = this._posResizeStartSize + iFY;
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} else {
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iFR = this._posResizeStartSize + iFX;
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}
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var wasSize=this._size;
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this._size = Math.max(this._minSize, iFR);
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var posModifier=(this._size-wasSize)/2;
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this._x+=posModifier*xMulti;
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this._y+=posModifier*yMulti;
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this._resizeCtrlIsHover = this._resizeCtrlIsDragging;
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res=true;
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this._events.trigger('area-resize');
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} else {
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var hoveredResizeBox=this._isCoordWithinResizeCtrl([mouseCurX,mouseCurY]);
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if (hoveredResizeBox>-1) {
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switch(hoveredResizeBox) {
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case 0:
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cursor = 'nwse-resize';
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break;
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case 1:
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cursor = 'nesw-resize';
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break;
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case 2:
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cursor = 'nesw-resize';
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break;
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case 3:
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cursor = 'nwse-resize';
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break;
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}
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this._areaIsHover = false;
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this._resizeCtrlIsHover = hoveredResizeBox;
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res=true;
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} else if(this._isCoordWithinArea([mouseCurX,mouseCurY])) {
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cursor = 'move';
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this._areaIsHover = true;
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res=true;
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}
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}
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this._dontDragOutside();
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angular.element(this._ctx.canvas).css({'cursor': cursor});
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return res;
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};
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CropAreaSquare.prototype.processMouseDown=function(mouseDownX, mouseDownY) {
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var isWithinResizeCtrl=this._isCoordWithinResizeCtrl([mouseDownX,mouseDownY]);
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if (isWithinResizeCtrl>-1) {
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this._areaIsDragging = false;
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this._areaIsHover = false;
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this._resizeCtrlIsDragging = isWithinResizeCtrl;
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this._resizeCtrlIsHover = isWithinResizeCtrl;
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this._posResizeStartX=mouseDownX;
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this._posResizeStartY=mouseDownY;
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this._posResizeStartSize = this._size;
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this._events.trigger('area-resize-start');
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} else if (this._isCoordWithinArea([mouseDownX,mouseDownY])) {
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this._areaIsDragging = true;
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this._areaIsHover = true;
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this._resizeCtrlIsDragging = -1;
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this._resizeCtrlIsHover = -1;
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this._posDragStartX = mouseDownX - this._x;
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this._posDragStartY = mouseDownY - this._y;
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this._events.trigger('area-move-start');
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}
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};
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CropAreaSquare.prototype.processMouseUp=function(/*mouseUpX, mouseUpY*/) {
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if(this._areaIsDragging) {
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this._areaIsDragging = false;
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this._events.trigger('area-move-end');
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}
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if(this._resizeCtrlIsDragging>-1) {
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this._resizeCtrlIsDragging = -1;
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this._events.trigger('area-resize-end');
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}
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this._areaIsHover = false;
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this._resizeCtrlIsHover = -1;
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this._posDragStartX = 0;
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this._posDragStartY = 0;
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};
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return CropAreaSquare;
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}]);
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crop.factory('cropArea', ['cropCanvas', function(CropCanvas) {
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var CropArea = function(ctx, events) {
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this._ctx=ctx;
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this._events=events;
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this._minSize=80;
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this._cropCanvas=new CropCanvas(ctx);
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this._image=new Image();
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this._x = 0;
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this._y = 0;
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this._size = 200;
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};
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/* GETTERS/SETTERS */
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CropArea.prototype.getImage = function () {
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return this._image;
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};
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CropArea.prototype.setImage = function (image) {
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this._image = image;
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};
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CropArea.prototype.getX = function () {
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return this._x;
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};
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CropArea.prototype.setX = function (x) {
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this._x = x;
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this._dontDragOutside();
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};
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CropArea.prototype.getY = function () {
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return this._y;
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};
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CropArea.prototype.setY = function (y) {
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this._y = y;
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this._dontDragOutside();
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};
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CropArea.prototype.getSize = function () {
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return this._size;
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};
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CropArea.prototype.setSize = function (size) {
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this._size = Math.max(this._minSize, size);
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this._dontDragOutside();
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};
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CropArea.prototype.getMinSize = function () {
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return this._minSize;
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};
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CropArea.prototype.setMinSize = function (size) {
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this._minSize = size;
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this._size = Math.max(this._minSize, this._size);
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this._dontDragOutside();
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};
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/* FUNCTIONS */
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CropArea.prototype._dontDragOutside=function() {
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var h=this._ctx.canvas.height,
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w=this._ctx.canvas.width;
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if(this._size>w) { this._size=w; }
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if(this._size>h) { this._size=h; }
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if(this._x<this._size/2) { this._x=this._size/2; }
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if(this._x>w-this._size/2) { this._x=w-this._size/2; }
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if(this._y<this._size/2) { this._y=this._size/2; }
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if(this._y>h-this._size/2) { this._y=h-this._size/2; }
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};
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CropArea.prototype._drawArea=function() {};
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CropArea.prototype.draw=function() {
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// draw crop area
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this._cropCanvas.drawCropArea(this._image,[this._x,this._y],this._size,this._drawArea);
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};
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CropArea.prototype.processMouseMove=function() {};
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CropArea.prototype.processMouseDown=function() {};
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CropArea.prototype.processMouseUp=function() {};
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return CropArea;
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}]);
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crop.factory('cropCanvas', [function() {
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// Shape = Array of [x,y]; [0, 0] - center
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var shapeArrowNW=[[-0.5,-2],[-3,-4.5],[-0.5,-7],[-7,-7],[-7,-0.5],[-4.5,-3],[-2,-0.5]];
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var shapeArrowNE=[[0.5,-2],[3,-4.5],[0.5,-7],[7,-7],[7,-0.5],[4.5,-3],[2,-0.5]];
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var shapeArrowSW=[[-0.5,2],[-3,4.5],[-0.5,7],[-7,7],[-7,0.5],[-4.5,3],[-2,0.5]];
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var shapeArrowSE=[[0.5,2],[3,4.5],[0.5,7],[7,7],[7,0.5],[4.5,3],[2,0.5]];
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var shapeArrowN=[[-1.5,-2.5],[-1.5,-6],[-5,-6],[0,-11],[5,-6],[1.5,-6],[1.5,-2.5]];
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var shapeArrowW=[[-2.5,-1.5],[-6,-1.5],[-6,-5],[-11,0],[-6,5],[-6,1.5],[-2.5,1.5]];
|
|
var shapeArrowS=[[-1.5,2.5],[-1.5,6],[-5,6],[0,11],[5,6],[1.5,6],[1.5,2.5]];
|
|
var shapeArrowE=[[2.5,-1.5],[6,-1.5],[6,-5],[11,0],[6,5],[6,1.5],[2.5,1.5]];
|
|
|
|
// Colors
|
|
var colors={
|
|
areaOutline: '#fff',
|
|
resizeBoxStroke: '#fff',
|
|
resizeBoxFill: '#444',
|
|
resizeBoxArrowFill: '#fff',
|
|
resizeCircleStroke: '#fff',
|
|
resizeCircleFill: '#444',
|
|
moveIconFill: '#fff'
|
|
};
|
|
|
|
return function(ctx){
|
|
|
|
/* Base functions */
|
|
|
|
// Calculate Point
|
|
var calcPoint=function(point,offset,scale) {
|
|
return [scale*point[0]+offset[0], scale*point[1]+offset[1]];
|
|
};
|
|
|
|
// Draw Filled Polygon
|
|
var drawFilledPolygon=function(shape,fillStyle,centerCoords,scale) {
|
|
ctx.save();
|
|
ctx.fillStyle = fillStyle;
|
|
ctx.beginPath();
|
|
var pc, pc0=calcPoint(shape[0],centerCoords,scale);
|
|
ctx.moveTo(pc0[0],pc0[1]);
|
|
|
|
for(var p in shape) {
|
|
if (p > 0) {
|
|
pc=calcPoint(shape[p],centerCoords,scale);
|
|
ctx.lineTo(pc[0],pc[1]);
|
|
}
|
|
}
|
|
|
|
ctx.lineTo(pc0[0],pc0[1]);
|
|
ctx.fill();
|
|
ctx.closePath();
|
|
ctx.restore();
|
|
};
|
|
|
|
/* Icons */
|
|
|
|
this.drawIconMove=function(centerCoords, scale) {
|
|
drawFilledPolygon(shapeArrowN, colors.moveIconFill, centerCoords, scale);
|
|
drawFilledPolygon(shapeArrowW, colors.moveIconFill, centerCoords, scale);
|
|
drawFilledPolygon(shapeArrowS, colors.moveIconFill, centerCoords, scale);
|
|
drawFilledPolygon(shapeArrowE, colors.moveIconFill, centerCoords, scale);
|
|
};
|
|
|
|
this.drawIconResizeCircle=function(centerCoords, circleRadius, scale) {
|
|
var scaledCircleRadius=circleRadius*scale;
|
|
ctx.save();
|
|
ctx.strokeStyle = colors.resizeCircleStroke;
|
|
ctx.lineWidth = 2;
|
|
ctx.fillStyle = colors.resizeCircleFill;
|
|
ctx.beginPath();
|
|
ctx.arc(centerCoords[0],centerCoords[1],scaledCircleRadius,0,2*Math.PI);
|
|
ctx.fill();
|
|
ctx.stroke();
|
|
ctx.closePath();
|
|
ctx.restore();
|
|
};
|
|
|
|
this.drawIconResizeBoxBase=function(centerCoords, boxSize, scale) {
|
|
var scaledBoxSize=boxSize*scale;
|
|
ctx.save();
|
|
ctx.strokeStyle = colors.resizeBoxStroke;
|
|
ctx.lineWidth = 2;
|
|
ctx.fillStyle = colors.resizeBoxFill;
|
|
ctx.fillRect(centerCoords[0] - scaledBoxSize/2, centerCoords[1] - scaledBoxSize/2, scaledBoxSize, scaledBoxSize);
|
|
ctx.strokeRect(centerCoords[0] - scaledBoxSize/2, centerCoords[1] - scaledBoxSize/2, scaledBoxSize, scaledBoxSize);
|
|
ctx.restore();
|
|
};
|
|
this.drawIconResizeBoxNESW=function(centerCoords, boxSize, scale) {
|
|
this.drawIconResizeBoxBase(centerCoords, boxSize, scale);
|
|
drawFilledPolygon(shapeArrowNE, colors.resizeBoxArrowFill, centerCoords, scale);
|
|
drawFilledPolygon(shapeArrowSW, colors.resizeBoxArrowFill, centerCoords, scale);
|
|
};
|
|
this.drawIconResizeBoxNWSE=function(centerCoords, boxSize, scale) {
|
|
this.drawIconResizeBoxBase(centerCoords, boxSize, scale);
|
|
drawFilledPolygon(shapeArrowNW, colors.resizeBoxArrowFill, centerCoords, scale);
|
|
drawFilledPolygon(shapeArrowSE, colors.resizeBoxArrowFill, centerCoords, scale);
|
|
};
|
|
|
|
/* Crop Area */
|
|
|
|
this.drawCropArea=function(image, centerCoords, size, fnDrawClipPath) {
|
|
var xRatio=image.width/ctx.canvas.width,
|
|
yRatio=image.height/ctx.canvas.height,
|
|
xLeft=centerCoords[0]-size/2,
|
|
yTop=centerCoords[1]-size/2;
|
|
|
|
ctx.save();
|
|
ctx.strokeStyle = colors.areaOutline;
|
|
ctx.lineWidth = 2;
|
|
ctx.beginPath();
|
|
fnDrawClipPath(ctx, centerCoords, size);
|
|
ctx.stroke();
|
|
ctx.clip();
|
|
|
|
// draw part of original image
|
|
if (size > 0) {
|
|
ctx.drawImage(image, xLeft*xRatio, yTop*yRatio, size*xRatio, size*yRatio, xLeft, yTop, size, size);
|
|
}
|
|
|
|
ctx.beginPath();
|
|
fnDrawClipPath(ctx, centerCoords, size);
|
|
ctx.stroke();
|
|
ctx.clip();
|
|
|
|
ctx.restore();
|
|
};
|
|
|
|
};
|
|
}]);
|
|
|
|
/**
|
|
* EXIF service is based on the exif-js library (https://github.com/jseidelin/exif-js)
|
|
*/
|
|
|
|
crop.service('cropEXIF', [function() {
|
|
var debug = false;
|
|
|
|
var ExifTags = this.Tags = {
|
|
|
|
// version tags
|
|
0x9000 : "ExifVersion", // EXIF version
|
|
0xA000 : "FlashpixVersion", // Flashpix format version
|
|
|
|
// colorspace tags
|
|
0xA001 : "ColorSpace", // Color space information tag
|
|
|
|
// image configuration
|
|
0xA002 : "PixelXDimension", // Valid width of meaningful image
|
|
0xA003 : "PixelYDimension", // Valid height of meaningful image
|
|
0x9101 : "ComponentsConfiguration", // Information about channels
|
|
0x9102 : "CompressedBitsPerPixel", // Compressed bits per pixel
|
|
|
|
// user information
|
|
0x927C : "MakerNote", // Any desired information written by the manufacturer
|
|
0x9286 : "UserComment", // Comments by user
|
|
|
|
// related file
|
|
0xA004 : "RelatedSoundFile", // Name of related sound file
|
|
|
|
// date and time
|
|
0x9003 : "DateTimeOriginal", // Date and time when the original image was generated
|
|
0x9004 : "DateTimeDigitized", // Date and time when the image was stored digitally
|
|
0x9290 : "SubsecTime", // Fractions of seconds for DateTime
|
|
0x9291 : "SubsecTimeOriginal", // Fractions of seconds for DateTimeOriginal
|
|
0x9292 : "SubsecTimeDigitized", // Fractions of seconds for DateTimeDigitized
|
|
|
|
// picture-taking conditions
|
|
0x829A : "ExposureTime", // Exposure time (in seconds)
|
|
0x829D : "FNumber", // F number
|
|
0x8822 : "ExposureProgram", // Exposure program
|
|
0x8824 : "SpectralSensitivity", // Spectral sensitivity
|
|
0x8827 : "ISOSpeedRatings", // ISO speed rating
|
|
0x8828 : "OECF", // Optoelectric conversion factor
|
|
0x9201 : "ShutterSpeedValue", // Shutter speed
|
|
0x9202 : "ApertureValue", // Lens aperture
|
|
0x9203 : "BrightnessValue", // Value of brightness
|
|
0x9204 : "ExposureBias", // Exposure bias
|
|
0x9205 : "MaxApertureValue", // Smallest F number of lens
|
|
0x9206 : "SubjectDistance", // Distance to subject in meters
|
|
0x9207 : "MeteringMode", // Metering mode
|
|
0x9208 : "LightSource", // Kind of light source
|
|
0x9209 : "Flash", // Flash status
|
|
0x9214 : "SubjectArea", // Location and area of main subject
|
|
0x920A : "FocalLength", // Focal length of the lens in mm
|
|
0xA20B : "FlashEnergy", // Strobe energy in BCPS
|
|
0xA20C : "SpatialFrequencyResponse", //
|
|
0xA20E : "FocalPlaneXResolution", // Number of pixels in width direction per FocalPlaneResolutionUnit
|
|
0xA20F : "FocalPlaneYResolution", // Number of pixels in height direction per FocalPlaneResolutionUnit
|
|
0xA210 : "FocalPlaneResolutionUnit", // Unit for measuring FocalPlaneXResolution and FocalPlaneYResolution
|
|
0xA214 : "SubjectLocation", // Location of subject in image
|
|
0xA215 : "ExposureIndex", // Exposure index selected on camera
|
|
0xA217 : "SensingMethod", // Image sensor type
|
|
0xA300 : "FileSource", // Image source (3 == DSC)
|
|
0xA301 : "SceneType", // Scene type (1 == directly photographed)
|
|
0xA302 : "CFAPattern", // Color filter array geometric pattern
|
|
0xA401 : "CustomRendered", // Special processing
|
|
0xA402 : "ExposureMode", // Exposure mode
|
|
0xA403 : "WhiteBalance", // 1 = auto white balance, 2 = manual
|
|
0xA404 : "DigitalZoomRation", // Digital zoom ratio
|
|
0xA405 : "FocalLengthIn35mmFilm", // Equivalent foacl length assuming 35mm film camera (in mm)
|
|
0xA406 : "SceneCaptureType", // Type of scene
|
|
0xA407 : "GainControl", // Degree of overall image gain adjustment
|
|
0xA408 : "Contrast", // Direction of contrast processing applied by camera
|
|
0xA409 : "Saturation", // Direction of saturation processing applied by camera
|
|
0xA40A : "Sharpness", // Direction of sharpness processing applied by camera
|
|
0xA40B : "DeviceSettingDescription", //
|
|
0xA40C : "SubjectDistanceRange", // Distance to subject
|
|
|
|
// other tags
|
|
0xA005 : "InteroperabilityIFDPointer",
|
|
0xA420 : "ImageUniqueID" // Identifier assigned uniquely to each image
|
|
};
|
|
|
|
var TiffTags = this.TiffTags = {
|
|
0x0100 : "ImageWidth",
|
|
0x0101 : "ImageHeight",
|
|
0x8769 : "ExifIFDPointer",
|
|
0x8825 : "GPSInfoIFDPointer",
|
|
0xA005 : "InteroperabilityIFDPointer",
|
|
0x0102 : "BitsPerSample",
|
|
0x0103 : "Compression",
|
|
0x0106 : "PhotometricInterpretation",
|
|
0x0112 : "Orientation",
|
|
0x0115 : "SamplesPerPixel",
|
|
0x011C : "PlanarConfiguration",
|
|
0x0212 : "YCbCrSubSampling",
|
|
0x0213 : "YCbCrPositioning",
|
|
0x011A : "XResolution",
|
|
0x011B : "YResolution",
|
|
0x0128 : "ResolutionUnit",
|
|
0x0111 : "StripOffsets",
|
|
0x0116 : "RowsPerStrip",
|
|
0x0117 : "StripByteCounts",
|
|
0x0201 : "JPEGInterchangeFormat",
|
|
0x0202 : "JPEGInterchangeFormatLength",
|
|
0x012D : "TransferFunction",
|
|
0x013E : "WhitePoint",
|
|
0x013F : "PrimaryChromaticities",
|
|
0x0211 : "YCbCrCoefficients",
|
|
0x0214 : "ReferenceBlackWhite",
|
|
0x0132 : "DateTime",
|
|
0x010E : "ImageDescription",
|
|
0x010F : "Make",
|
|
0x0110 : "Model",
|
|
0x0131 : "Software",
|
|
0x013B : "Artist",
|
|
0x8298 : "Copyright"
|
|
};
|
|
|
|
var GPSTags = this.GPSTags = {
|
|
0x0000 : "GPSVersionID",
|
|
0x0001 : "GPSLatitudeRef",
|
|
0x0002 : "GPSLatitude",
|
|
0x0003 : "GPSLongitudeRef",
|
|
0x0004 : "GPSLongitude",
|
|
0x0005 : "GPSAltitudeRef",
|
|
0x0006 : "GPSAltitude",
|
|
0x0007 : "GPSTimeStamp",
|
|
0x0008 : "GPSSatellites",
|
|
0x0009 : "GPSStatus",
|
|
0x000A : "GPSMeasureMode",
|
|
0x000B : "GPSDOP",
|
|
0x000C : "GPSSpeedRef",
|
|
0x000D : "GPSSpeed",
|
|
0x000E : "GPSTrackRef",
|
|
0x000F : "GPSTrack",
|
|
0x0010 : "GPSImgDirectionRef",
|
|
0x0011 : "GPSImgDirection",
|
|
0x0012 : "GPSMapDatum",
|
|
0x0013 : "GPSDestLatitudeRef",
|
|
0x0014 : "GPSDestLatitude",
|
|
0x0015 : "GPSDestLongitudeRef",
|
|
0x0016 : "GPSDestLongitude",
|
|
0x0017 : "GPSDestBearingRef",
|
|
0x0018 : "GPSDestBearing",
|
|
0x0019 : "GPSDestDistanceRef",
|
|
0x001A : "GPSDestDistance",
|
|
0x001B : "GPSProcessingMethod",
|
|
0x001C : "GPSAreaInformation",
|
|
0x001D : "GPSDateStamp",
|
|
0x001E : "GPSDifferential"
|
|
};
|
|
|
|
var StringValues = this.StringValues = {
|
|
ExposureProgram : {
|
|
0 : "Not defined",
|
|
1 : "Manual",
|
|
2 : "Normal program",
|
|
3 : "Aperture priority",
|
|
4 : "Shutter priority",
|
|
5 : "Creative program",
|
|
6 : "Action program",
|
|
7 : "Portrait mode",
|
|
8 : "Landscape mode"
|
|
},
|
|
MeteringMode : {
|
|
0 : "Unknown",
|
|
1 : "Average",
|
|
2 : "CenterWeightedAverage",
|
|
3 : "Spot",
|
|
4 : "MultiSpot",
|
|
5 : "Pattern",
|
|
6 : "Partial",
|
|
255 : "Other"
|
|
},
|
|
LightSource : {
|
|
0 : "Unknown",
|
|
1 : "Daylight",
|
|
2 : "Fluorescent",
|
|
3 : "Tungsten (incandescent light)",
|
|
4 : "Flash",
|
|
9 : "Fine weather",
|
|
10 : "Cloudy weather",
|
|
11 : "Shade",
|
|
12 : "Daylight fluorescent (D 5700 - 7100K)",
|
|
13 : "Day white fluorescent (N 4600 - 5400K)",
|
|
14 : "Cool white fluorescent (W 3900 - 4500K)",
|
|
15 : "White fluorescent (WW 3200 - 3700K)",
|
|
17 : "Standard light A",
|
|
18 : "Standard light B",
|
|
19 : "Standard light C",
|
|
20 : "D55",
|
|
21 : "D65",
|
|
22 : "D75",
|
|
23 : "D50",
|
|
24 : "ISO studio tungsten",
|
|
255 : "Other"
|
|
},
|
|
Flash : {
|
|
0x0000 : "Flash did not fire",
|
|
0x0001 : "Flash fired",
|
|
0x0005 : "Strobe return light not detected",
|
|
0x0007 : "Strobe return light detected",
|
|
0x0009 : "Flash fired, compulsory flash mode",
|
|
0x000D : "Flash fired, compulsory flash mode, return light not detected",
|
|
0x000F : "Flash fired, compulsory flash mode, return light detected",
|
|
0x0010 : "Flash did not fire, compulsory flash mode",
|
|
0x0018 : "Flash did not fire, auto mode",
|
|
0x0019 : "Flash fired, auto mode",
|
|
0x001D : "Flash fired, auto mode, return light not detected",
|
|
0x001F : "Flash fired, auto mode, return light detected",
|
|
0x0020 : "No flash function",
|
|
0x0041 : "Flash fired, red-eye reduction mode",
|
|
0x0045 : "Flash fired, red-eye reduction mode, return light not detected",
|
|
0x0047 : "Flash fired, red-eye reduction mode, return light detected",
|
|
0x0049 : "Flash fired, compulsory flash mode, red-eye reduction mode",
|
|
0x004D : "Flash fired, compulsory flash mode, red-eye reduction mode, return light not detected",
|
|
0x004F : "Flash fired, compulsory flash mode, red-eye reduction mode, return light detected",
|
|
0x0059 : "Flash fired, auto mode, red-eye reduction mode",
|
|
0x005D : "Flash fired, auto mode, return light not detected, red-eye reduction mode",
|
|
0x005F : "Flash fired, auto mode, return light detected, red-eye reduction mode"
|
|
},
|
|
SensingMethod : {
|
|
1 : "Not defined",
|
|
2 : "One-chip color area sensor",
|
|
3 : "Two-chip color area sensor",
|
|
4 : "Three-chip color area sensor",
|
|
5 : "Color sequential area sensor",
|
|
7 : "Trilinear sensor",
|
|
8 : "Color sequential linear sensor"
|
|
},
|
|
SceneCaptureType : {
|
|
0 : "Standard",
|
|
1 : "Landscape",
|
|
2 : "Portrait",
|
|
3 : "Night scene"
|
|
},
|
|
SceneType : {
|
|
1 : "Directly photographed"
|
|
},
|
|
CustomRendered : {
|
|
0 : "Normal process",
|
|
1 : "Custom process"
|
|
},
|
|
WhiteBalance : {
|
|
0 : "Auto white balance",
|
|
1 : "Manual white balance"
|
|
},
|
|
GainControl : {
|
|
0 : "None",
|
|
1 : "Low gain up",
|
|
2 : "High gain up",
|
|
3 : "Low gain down",
|
|
4 : "High gain down"
|
|
},
|
|
Contrast : {
|
|
0 : "Normal",
|
|
1 : "Soft",
|
|
2 : "Hard"
|
|
},
|
|
Saturation : {
|
|
0 : "Normal",
|
|
1 : "Low saturation",
|
|
2 : "High saturation"
|
|
},
|
|
Sharpness : {
|
|
0 : "Normal",
|
|
1 : "Soft",
|
|
2 : "Hard"
|
|
},
|
|
SubjectDistanceRange : {
|
|
0 : "Unknown",
|
|
1 : "Macro",
|
|
2 : "Close view",
|
|
3 : "Distant view"
|
|
},
|
|
FileSource : {
|
|
3 : "DSC"
|
|
},
|
|
|
|
Components : {
|
|
0 : "",
|
|
1 : "Y",
|
|
2 : "Cb",
|
|
3 : "Cr",
|
|
4 : "R",
|
|
5 : "G",
|
|
6 : "B"
|
|
}
|
|
};
|
|
|
|
function addEvent(element, event, handler) {
|
|
if (element.addEventListener) {
|
|
element.addEventListener(event, handler, false);
|
|
} else if (element.attachEvent) {
|
|
element.attachEvent("on" + event, handler);
|
|
}
|
|
}
|
|
|
|
function imageHasData(img) {
|
|
return !!(img.exifdata);
|
|
}
|
|
|
|
function base64ToArrayBuffer(base64, contentType) {
|
|
contentType = contentType || base64.match(/^data\:([^\;]+)\;base64,/mi)[1] || ''; // e.g. 'data:image/jpeg;base64,...' => 'image/jpeg'
|
|
base64 = base64.replace(/^data\:([^\;]+)\;base64,/gmi, '');
|
|
var binary = atob(base64);
|
|
var len = binary.length;
|
|
var buffer = new ArrayBuffer(len);
|
|
var view = new Uint8Array(buffer);
|
|
for (var i = 0; i < len; i++) {
|
|
view[i] = binary.charCodeAt(i);
|
|
}
|
|
return buffer;
|
|
}
|
|
|
|
function objectURLToBlob(url, callback) {
|
|
var http = new XMLHttpRequest();
|
|
http.open("GET", url, true);
|
|
http.responseType = "blob";
|
|
http.onload = function(e) {
|
|
if (this.status == 200 || this.status === 0) {
|
|
callback(this.response);
|
|
}
|
|
};
|
|
http.send();
|
|
}
|
|
|
|
function getImageData(img, callback) {
|
|
function handleBinaryFile(binFile) {
|
|
var data = findEXIFinJPEG(binFile);
|
|
var iptcdata = findIPTCinJPEG(binFile);
|
|
img.exifdata = data || {};
|
|
img.iptcdata = iptcdata || {};
|
|
if (callback) {
|
|
callback.call(img);
|
|
}
|
|
}
|
|
|
|
if (img.src) {
|
|
if (/^data\:/i.test(img.src)) { // Data URI
|
|
var arrayBuffer = base64ToArrayBuffer(img.src);
|
|
handleBinaryFile(arrayBuffer);
|
|
|
|
} else if (/^blob\:/i.test(img.src)) { // Object URL
|
|
var fileReader = new FileReader();
|
|
fileReader.onload = function(e) {
|
|
handleBinaryFile(e.target.result);
|
|
};
|
|
objectURLToBlob(img.src, function (blob) {
|
|
fileReader.readAsArrayBuffer(blob);
|
|
});
|
|
} else {
|
|
var http = new XMLHttpRequest();
|
|
http.onload = function() {
|
|
if (this.status == 200 || this.status === 0) {
|
|
handleBinaryFile(http.response);
|
|
} else {
|
|
throw "Could not load image";
|
|
}
|
|
http = null;
|
|
};
|
|
http.open("GET", img.src, true);
|
|
http.responseType = "arraybuffer";
|
|
http.send(null);
|
|
}
|
|
} else if (window.FileReader && (img instanceof window.Blob || img instanceof window.File)) {
|
|
var fileReader = new FileReader();
|
|
fileReader.onload = function(e) {
|
|
if (debug) console.log("Got file of length " + e.target.result.byteLength);
|
|
handleBinaryFile(e.target.result);
|
|
};
|
|
|
|
fileReader.readAsArrayBuffer(img);
|
|
}
|
|
}
|
|
|
|
function findEXIFinJPEG(file) {
|
|
var dataView = new DataView(file);
|
|
|
|
if (debug) console.log("Got file of length " + file.byteLength);
|
|
if ((dataView.getUint8(0) != 0xFF) || (dataView.getUint8(1) != 0xD8)) {
|
|
if (debug) console.log("Not a valid JPEG");
|
|
return false; // not a valid jpeg
|
|
}
|
|
|
|
var offset = 2,
|
|
length = file.byteLength,
|
|
marker;
|
|
|
|
while (offset < length) {
|
|
if (dataView.getUint8(offset) != 0xFF) {
|
|
if (debug) console.log("Not a valid marker at offset " + offset + ", found: " + dataView.getUint8(offset));
|
|
return false; // not a valid marker, something is wrong
|
|
}
|
|
|
|
marker = dataView.getUint8(offset + 1);
|
|
if (debug) console.log(marker);
|
|
|
|
// we could implement handling for other markers here,
|
|
// but we're only looking for 0xFFE1 for EXIF data
|
|
|
|
if (marker == 225) {
|
|
if (debug) console.log("Found 0xFFE1 marker");
|
|
|
|
return readEXIFData(dataView, offset + 4, dataView.getUint16(offset + 2) - 2);
|
|
|
|
// offset += 2 + file.getShortAt(offset+2, true);
|
|
|
|
} else {
|
|
offset += 2 + dataView.getUint16(offset+2);
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function findIPTCinJPEG(file) {
|
|
var dataView = new DataView(file);
|
|
|
|
if (debug) console.log("Got file of length " + file.byteLength);
|
|
if ((dataView.getUint8(0) != 0xFF) || (dataView.getUint8(1) != 0xD8)) {
|
|
if (debug) console.log("Not a valid JPEG");
|
|
return false; // not a valid jpeg
|
|
}
|
|
|
|
var offset = 2,
|
|
length = file.byteLength;
|
|
|
|
var isFieldSegmentStart = function(dataView, offset){
|
|
return (
|
|
dataView.getUint8(offset) === 0x38 &&
|
|
dataView.getUint8(offset+1) === 0x42 &&
|
|
dataView.getUint8(offset+2) === 0x49 &&
|
|
dataView.getUint8(offset+3) === 0x4D &&
|
|
dataView.getUint8(offset+4) === 0x04 &&
|
|
dataView.getUint8(offset+5) === 0x04
|
|
);
|
|
};
|
|
|
|
while (offset < length) {
|
|
|
|
if ( isFieldSegmentStart(dataView, offset )){
|
|
|
|
// Get the length of the name header (which is padded to an even number of bytes)
|
|
var nameHeaderLength = dataView.getUint8(offset+7);
|
|
if(nameHeaderLength % 2 !== 0) nameHeaderLength += 1;
|
|
// Check for pre photoshop 6 format
|
|
if(nameHeaderLength === 0) {
|
|
// Always 4
|
|
nameHeaderLength = 4;
|
|
}
|
|
|
|
var startOffset = offset + 8 + nameHeaderLength;
|
|
var sectionLength = dataView.getUint16(offset + 6 + nameHeaderLength);
|
|
|
|
return readIPTCData(file, startOffset, sectionLength);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
// Not the marker, continue searching
|
|
offset++;
|
|
|
|
}
|
|
|
|
}
|
|
var IptcFieldMap = {
|
|
0x78 : 'caption',
|
|
0x6E : 'credit',
|
|
0x19 : 'keywords',
|
|
0x37 : 'dateCreated',
|
|
0x50 : 'byline',
|
|
0x55 : 'bylineTitle',
|
|
0x7A : 'captionWriter',
|
|
0x69 : 'headline',
|
|
0x74 : 'copyright',
|
|
0x0F : 'category'
|
|
};
|
|
function readIPTCData(file, startOffset, sectionLength){
|
|
var dataView = new DataView(file);
|
|
var data = {};
|
|
var fieldValue, fieldName, dataSize, segmentType, segmentSize;
|
|
var segmentStartPos = startOffset;
|
|
while(segmentStartPos < startOffset+sectionLength) {
|
|
if(dataView.getUint8(segmentStartPos) === 0x1C && dataView.getUint8(segmentStartPos+1) === 0x02){
|
|
segmentType = dataView.getUint8(segmentStartPos+2);
|
|
if(segmentType in IptcFieldMap) {
|
|
dataSize = dataView.getInt16(segmentStartPos+3);
|
|
segmentSize = dataSize + 5;
|
|
fieldName = IptcFieldMap[segmentType];
|
|
fieldValue = getStringFromDB(dataView, segmentStartPos+5, dataSize);
|
|
// Check if we already stored a value with this name
|
|
if(data.hasOwnProperty(fieldName)) {
|
|
// Value already stored with this name, create multivalue field
|
|
if(data[fieldName] instanceof Array) {
|
|
data[fieldName].push(fieldValue);
|
|
}
|
|
else {
|
|
data[fieldName] = [data[fieldName], fieldValue];
|
|
}
|
|
}
|
|
else {
|
|
data[fieldName] = fieldValue;
|
|
}
|
|
}
|
|
|
|
}
|
|
segmentStartPos++;
|
|
}
|
|
return data;
|
|
}
|
|
|
|
function readTags(file, tiffStart, dirStart, strings, bigEnd) {
|
|
var entries = file.getUint16(dirStart, !bigEnd),
|
|
tags = {},
|
|
entryOffset, tag,
|
|
i;
|
|
|
|
for (i=0;i<entries;i++) {
|
|
entryOffset = dirStart + i*12 + 2;
|
|
tag = strings[file.getUint16(entryOffset, !bigEnd)];
|
|
if (!tag && debug) console.log("Unknown tag: " + file.getUint16(entryOffset, !bigEnd));
|
|
tags[tag] = readTagValue(file, entryOffset, tiffStart, dirStart, bigEnd);
|
|
}
|
|
return tags;
|
|
}
|
|
|
|
function readTagValue(file, entryOffset, tiffStart, dirStart, bigEnd) {
|
|
var type = file.getUint16(entryOffset+2, !bigEnd),
|
|
numValues = file.getUint32(entryOffset+4, !bigEnd),
|
|
valueOffset = file.getUint32(entryOffset+8, !bigEnd) + tiffStart,
|
|
offset,
|
|
vals, val, n,
|
|
numerator, denominator;
|
|
|
|
switch (type) {
|
|
case 1: // byte, 8-bit unsigned int
|
|
case 7: // undefined, 8-bit byte, value depending on field
|
|
if (numValues == 1) {
|
|
return file.getUint8(entryOffset + 8, !bigEnd);
|
|
} else {
|
|
offset = numValues > 4 ? valueOffset : (entryOffset + 8);
|
|
vals = [];
|
|
for (n=0;n<numValues;n++) {
|
|
vals[n] = file.getUint8(offset + n);
|
|
}
|
|
return vals;
|
|
}
|
|
|
|
case 2: // ascii, 8-bit byte
|
|
offset = numValues > 4 ? valueOffset : (entryOffset + 8);
|
|
return getStringFromDB(file, offset, numValues-1);
|
|
|
|
case 3: // short, 16 bit int
|
|
if (numValues == 1) {
|
|
return file.getUint16(entryOffset + 8, !bigEnd);
|
|
} else {
|
|
offset = numValues > 2 ? valueOffset : (entryOffset + 8);
|
|
vals = [];
|
|
for (n=0;n<numValues;n++) {
|
|
vals[n] = file.getUint16(offset + 2*n, !bigEnd);
|
|
}
|
|
return vals;
|
|
}
|
|
|
|
case 4: // long, 32 bit int
|
|
if (numValues == 1) {
|
|
return file.getUint32(entryOffset + 8, !bigEnd);
|
|
} else {
|
|
vals = [];
|
|
for (n=0;n<numValues;n++) {
|
|
vals[n] = file.getUint32(valueOffset + 4*n, !bigEnd);
|
|
}
|
|
return vals;
|
|
}
|
|
|
|
case 5: // rational = two long values, first is numerator, second is denominator
|
|
if (numValues == 1) {
|
|
numerator = file.getUint32(valueOffset, !bigEnd);
|
|
denominator = file.getUint32(valueOffset+4, !bigEnd);
|
|
val = new Number(numerator / denominator);
|
|
val.numerator = numerator;
|
|
val.denominator = denominator;
|
|
return val;
|
|
} else {
|
|
vals = [];
|
|
for (n=0;n<numValues;n++) {
|
|
numerator = file.getUint32(valueOffset + 8*n, !bigEnd);
|
|
denominator = file.getUint32(valueOffset+4 + 8*n, !bigEnd);
|
|
vals[n] = new Number(numerator / denominator);
|
|
vals[n].numerator = numerator;
|
|
vals[n].denominator = denominator;
|
|
}
|
|
return vals;
|
|
}
|
|
|
|
case 9: // slong, 32 bit signed int
|
|
if (numValues == 1) {
|
|
return file.getInt32(entryOffset + 8, !bigEnd);
|
|
} else {
|
|
vals = [];
|
|
for (n=0;n<numValues;n++) {
|
|
vals[n] = file.getInt32(valueOffset + 4*n, !bigEnd);
|
|
}
|
|
return vals;
|
|
}
|
|
|
|
case 10: // signed rational, two slongs, first is numerator, second is denominator
|
|
if (numValues == 1) {
|
|
return file.getInt32(valueOffset, !bigEnd) / file.getInt32(valueOffset+4, !bigEnd);
|
|
} else {
|
|
vals = [];
|
|
for (n=0;n<numValues;n++) {
|
|
vals[n] = file.getInt32(valueOffset + 8*n, !bigEnd) / file.getInt32(valueOffset+4 + 8*n, !bigEnd);
|
|
}
|
|
return vals;
|
|
}
|
|
}
|
|
}
|
|
|
|
function getStringFromDB(buffer, start, length) {
|
|
var outstr = "";
|
|
for (var n = start; n < start+length; n++) {
|
|
outstr += String.fromCharCode(buffer.getUint8(n));
|
|
}
|
|
return outstr;
|
|
}
|
|
|
|
function readEXIFData(file, start) {
|
|
if (getStringFromDB(file, start, 4) != "Exif") {
|
|
if (debug) console.log("Not valid EXIF data! " + getStringFromDB(file, start, 4));
|
|
return false;
|
|
}
|
|
|
|
var bigEnd,
|
|
tags, tag,
|
|
exifData, gpsData,
|
|
tiffOffset = start + 6;
|
|
|
|
// test for TIFF validity and endianness
|
|
if (file.getUint16(tiffOffset) == 0x4949) {
|
|
bigEnd = false;
|
|
} else if (file.getUint16(tiffOffset) == 0x4D4D) {
|
|
bigEnd = true;
|
|
} else {
|
|
if (debug) console.log("Not valid TIFF data! (no 0x4949 or 0x4D4D)");
|
|
return false;
|
|
}
|
|
|
|
if (file.getUint16(tiffOffset+2, !bigEnd) != 0x002A) {
|
|
if (debug) console.log("Not valid TIFF data! (no 0x002A)");
|
|
return false;
|
|
}
|
|
|
|
var firstIFDOffset = file.getUint32(tiffOffset+4, !bigEnd);
|
|
|
|
if (firstIFDOffset < 0x00000008) {
|
|
if (debug) console.log("Not valid TIFF data! (First offset less than 8)", file.getUint32(tiffOffset+4, !bigEnd));
|
|
return false;
|
|
}
|
|
|
|
tags = readTags(file, tiffOffset, tiffOffset + firstIFDOffset, TiffTags, bigEnd);
|
|
|
|
if (tags.ExifIFDPointer) {
|
|
exifData = readTags(file, tiffOffset, tiffOffset + tags.ExifIFDPointer, ExifTags, bigEnd);
|
|
for (tag in exifData) {
|
|
switch (tag) {
|
|
case "LightSource" :
|
|
case "Flash" :
|
|
case "MeteringMode" :
|
|
case "ExposureProgram" :
|
|
case "SensingMethod" :
|
|
case "SceneCaptureType" :
|
|
case "SceneType" :
|
|
case "CustomRendered" :
|
|
case "WhiteBalance" :
|
|
case "GainControl" :
|
|
case "Contrast" :
|
|
case "Saturation" :
|
|
case "Sharpness" :
|
|
case "SubjectDistanceRange" :
|
|
case "FileSource" :
|
|
exifData[tag] = StringValues[tag][exifData[tag]];
|
|
break;
|
|
|
|
case "ExifVersion" :
|
|
case "FlashpixVersion" :
|
|
exifData[tag] = String.fromCharCode(exifData[tag][0], exifData[tag][1], exifData[tag][2], exifData[tag][3]);
|
|
break;
|
|
|
|
case "ComponentsConfiguration" :
|
|
exifData[tag] =
|
|
StringValues.Components[exifData[tag][0]] +
|
|
StringValues.Components[exifData[tag][1]] +
|
|
StringValues.Components[exifData[tag][2]] +
|
|
StringValues.Components[exifData[tag][3]];
|
|
break;
|
|
}
|
|
tags[tag] = exifData[tag];
|
|
}
|
|
}
|
|
|
|
if (tags.GPSInfoIFDPointer) {
|
|
gpsData = readTags(file, tiffOffset, tiffOffset + tags.GPSInfoIFDPointer, GPSTags, bigEnd);
|
|
for (tag in gpsData) {
|
|
switch (tag) {
|
|
case "GPSVersionID" :
|
|
gpsData[tag] = gpsData[tag][0] +
|
|
"." + gpsData[tag][1] +
|
|
"." + gpsData[tag][2] +
|
|
"." + gpsData[tag][3];
|
|
break;
|
|
}
|
|
tags[tag] = gpsData[tag];
|
|
}
|
|
}
|
|
|
|
return tags;
|
|
}
|
|
|
|
this.getData = function(img, callback) {
|
|
if ((img instanceof Image || img instanceof HTMLImageElement) && !img.complete) return false;
|
|
|
|
if (!imageHasData(img)) {
|
|
getImageData(img, callback);
|
|
} else {
|
|
if (callback) {
|
|
callback.call(img);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
this.getTag = function(img, tag) {
|
|
if (!imageHasData(img)) return;
|
|
return img.exifdata[tag];
|
|
}
|
|
|
|
this.getAllTags = function(img) {
|
|
if (!imageHasData(img)) return {};
|
|
var a,
|
|
data = img.exifdata,
|
|
tags = {};
|
|
for (a in data) {
|
|
if (data.hasOwnProperty(a)) {
|
|
tags[a] = data[a];
|
|
}
|
|
}
|
|
return tags;
|
|
}
|
|
|
|
this.pretty = function(img) {
|
|
if (!imageHasData(img)) return "";
|
|
var a,
|
|
data = img.exifdata,
|
|
strPretty = "";
|
|
for (a in data) {
|
|
if (data.hasOwnProperty(a)) {
|
|
if (typeof data[a] == "object") {
|
|
if (data[a] instanceof Number) {
|
|
strPretty += a + " : " + data[a] + " [" + data[a].numerator + "/" + data[a].denominator + "]\r\n";
|
|
} else {
|
|
strPretty += a + " : [" + data[a].length + " values]\r\n";
|
|
}
|
|
} else {
|
|
strPretty += a + " : " + data[a] + "\r\n";
|
|
}
|
|
}
|
|
}
|
|
return strPretty;
|
|
}
|
|
|
|
this.readFromBinaryFile = function(file) {
|
|
return findEXIFinJPEG(file);
|
|
}
|
|
}]);
|
|
|
|
crop.factory('cropHost', ['$document', 'cropAreaCircle', 'cropAreaSquare', 'cropEXIF', function($document, CropAreaCircle, CropAreaSquare, cropEXIF) {
|
|
/* STATIC FUNCTIONS */
|
|
|
|
// Get Element's Offset
|
|
var getElementOffset=function(elem) {
|
|
var box = elem.getBoundingClientRect();
|
|
|
|
var body = document.body;
|
|
var docElem = document.documentElement;
|
|
|
|
var scrollTop = window.pageYOffset || docElem.scrollTop || body.scrollTop;
|
|
var scrollLeft = window.pageXOffset || docElem.scrollLeft || body.scrollLeft;
|
|
|
|
var clientTop = docElem.clientTop || body.clientTop || 0;
|
|
var clientLeft = docElem.clientLeft || body.clientLeft || 0;
|
|
|
|
var top = box.top + scrollTop - clientTop;
|
|
var left = box.left + scrollLeft - clientLeft;
|
|
|
|
return { top: Math.round(top), left: Math.round(left) };
|
|
};
|
|
|
|
return function(elCanvas, opts, events){
|
|
/* PRIVATE VARIABLES */
|
|
|
|
// Object Pointers
|
|
var ctx=null,
|
|
image=null,
|
|
theArea=null;
|
|
|
|
// Dimensions
|
|
var minCanvasDims=[100,100],
|
|
maxCanvasDims=[300,300];
|
|
|
|
// Result Image size
|
|
var resImgSize=200;
|
|
|
|
// Result Image type
|
|
var resImgFormat='image/png';
|
|
|
|
// Result Image quality
|
|
var resImgQuality=null;
|
|
|
|
/* PRIVATE FUNCTIONS */
|
|
|
|
// Draw Scene
|
|
function drawScene() {
|
|
// clear canvas
|
|
ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);
|
|
|
|
if(image!==null) {
|
|
// draw source image
|
|
ctx.drawImage(image, 0, 0, ctx.canvas.width, ctx.canvas.height);
|
|
|
|
ctx.save();
|
|
|
|
// and make it darker
|
|
ctx.fillStyle = 'rgba(0, 0, 0, 0.65)';
|
|
ctx.fillRect(0, 0, ctx.canvas.width, ctx.canvas.height);
|
|
|
|
ctx.restore();
|
|
|
|
// draw Area
|
|
theArea.draw();
|
|
}
|
|
}
|
|
|
|
// Resets CropHost
|
|
var resetCropHost=function() {
|
|
if(image!==null) {
|
|
theArea.setImage(image);
|
|
var imageDims=[image.width, image.height],
|
|
imageRatio=image.width/image.height,
|
|
canvasDims=imageDims;
|
|
|
|
if(canvasDims[0]>maxCanvasDims[0]) {
|
|
canvasDims[0]=maxCanvasDims[0];
|
|
canvasDims[1]=canvasDims[0]/imageRatio;
|
|
} else if(canvasDims[0]<minCanvasDims[0]) {
|
|
canvasDims[0]=minCanvasDims[0];
|
|
canvasDims[1]=canvasDims[0]/imageRatio;
|
|
}
|
|
if(canvasDims[1]>maxCanvasDims[1]) {
|
|
canvasDims[1]=maxCanvasDims[1];
|
|
canvasDims[0]=canvasDims[1]*imageRatio;
|
|
} else if(canvasDims[1]<minCanvasDims[1]) {
|
|
canvasDims[1]=minCanvasDims[1];
|
|
canvasDims[0]=canvasDims[1]*imageRatio;
|
|
}
|
|
elCanvas.prop('width',canvasDims[0]).prop('height',canvasDims[1]).css({'margin-left': -canvasDims[0]/2+'px', 'margin-top': -canvasDims[1]/2+'px'});
|
|
|
|
theArea.setX(ctx.canvas.width/2);
|
|
theArea.setY(ctx.canvas.height/2);
|
|
theArea.setSize(Math.min(200, ctx.canvas.width/2, ctx.canvas.height/2));
|
|
} else {
|
|
elCanvas.prop('width',0).prop('height',0).css({'margin-top': 0});
|
|
}
|
|
|
|
drawScene();
|
|
};
|
|
|
|
/**
|
|
* Returns event.changedTouches directly if event is a TouchEvent.
|
|
* If event is a jQuery event, return changedTouches of event.originalEvent
|
|
*/
|
|
var getChangedTouches=function(event){
|
|
if(angular.isDefined(event.changedTouches)){
|
|
return event.changedTouches;
|
|
}else{
|
|
return event.originalEvent.changedTouches;
|
|
}
|
|
};
|
|
|
|
var onMouseMove=function(e) {
|
|
if(image!==null) {
|
|
var offset=getElementOffset(ctx.canvas),
|
|
pageX, pageY;
|
|
if(e.type === 'touchmove') {
|
|
pageX=getChangedTouches(e)[0].pageX;
|
|
pageY=getChangedTouches(e)[0].pageY;
|
|
} else {
|
|
pageX=e.pageX;
|
|
pageY=e.pageY;
|
|
}
|
|
theArea.processMouseMove(pageX-offset.left, pageY-offset.top);
|
|
drawScene();
|
|
}
|
|
};
|
|
|
|
var onMouseDown=function(e) {
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
if(image!==null) {
|
|
var offset=getElementOffset(ctx.canvas),
|
|
pageX, pageY;
|
|
if(e.type === 'touchstart') {
|
|
pageX=getChangedTouches(e)[0].pageX;
|
|
pageY=getChangedTouches(e)[0].pageY;
|
|
} else {
|
|
pageX=e.pageX;
|
|
pageY=e.pageY;
|
|
}
|
|
theArea.processMouseDown(pageX-offset.left, pageY-offset.top);
|
|
drawScene();
|
|
}
|
|
};
|
|
|
|
var onMouseUp=function(e) {
|
|
if(image!==null) {
|
|
var offset=getElementOffset(ctx.canvas),
|
|
pageX, pageY;
|
|
if(e.type === 'touchend') {
|
|
pageX=getChangedTouches(e)[0].pageX;
|
|
pageY=getChangedTouches(e)[0].pageY;
|
|
} else {
|
|
pageX=e.pageX;
|
|
pageY=e.pageY;
|
|
}
|
|
theArea.processMouseUp(pageX-offset.left, pageY-offset.top);
|
|
drawScene();
|
|
}
|
|
};
|
|
|
|
this.getResultImageDataURI=function() {
|
|
var temp_ctx, temp_canvas;
|
|
temp_canvas = angular.element('<canvas></canvas>')[0];
|
|
temp_ctx = temp_canvas.getContext('2d');
|
|
temp_canvas.width = resImgSize;
|
|
temp_canvas.height = resImgSize;
|
|
if(image!==null){
|
|
temp_ctx.drawImage(image, (theArea.getX()-theArea.getSize()/2)*(image.width/ctx.canvas.width), (theArea.getY()-theArea.getSize()/2)*(image.height/ctx.canvas.height), theArea.getSize()*(image.width/ctx.canvas.width), theArea.getSize()*(image.height/ctx.canvas.height), 0, 0, resImgSize, resImgSize);
|
|
}
|
|
if (resImgQuality!==null ){
|
|
return temp_canvas.toDataURL(resImgFormat, resImgQuality);
|
|
}
|
|
return temp_canvas.toDataURL(resImgFormat);
|
|
};
|
|
|
|
this.setNewImageSource=function(imageSource) {
|
|
image=null;
|
|
resetCropHost();
|
|
events.trigger('image-updated');
|
|
if(!!imageSource) {
|
|
var newImage = new Image();
|
|
if(imageSource.substring(0,4).toLowerCase()==='http') {
|
|
newImage.crossOrigin = 'anonymous';
|
|
}
|
|
newImage.onload = function(){
|
|
events.trigger('load-done');
|
|
|
|
cropEXIF.getData(newImage,function(){
|
|
var orientation=cropEXIF.getTag(newImage,'Orientation');
|
|
|
|
if([3,6,8].indexOf(orientation)>-1) {
|
|
var canvas = document.createElement("canvas"),
|
|
ctx=canvas.getContext("2d"),
|
|
cw = newImage.width, ch = newImage.height, cx = 0, cy = 0, deg=0;
|
|
switch(orientation) {
|
|
case 3:
|
|
cx=-newImage.width;
|
|
cy=-newImage.height;
|
|
deg=180;
|
|
break;
|
|
case 6:
|
|
cw = newImage.height;
|
|
ch = newImage.width;
|
|
cy=-newImage.height;
|
|
deg=90;
|
|
break;
|
|
case 8:
|
|
cw = newImage.height;
|
|
ch = newImage.width;
|
|
cx=-newImage.width;
|
|
deg=270;
|
|
break;
|
|
}
|
|
|
|
canvas.width = cw;
|
|
canvas.height = ch;
|
|
ctx.rotate(deg*Math.PI/180);
|
|
ctx.drawImage(newImage, cx, cy);
|
|
|
|
image=new Image();
|
|
image.src = canvas.toDataURL("image/png");
|
|
} else {
|
|
image=newImage;
|
|
}
|
|
resetCropHost();
|
|
events.trigger('image-updated');
|
|
});
|
|
};
|
|
newImage.onerror=function() {
|
|
events.trigger('load-error');
|
|
};
|
|
events.trigger('load-start');
|
|
newImage.src=imageSource;
|
|
}
|
|
};
|
|
|
|
this.setMaxDimensions=function(width, height) {
|
|
maxCanvasDims=[width,height];
|
|
|
|
if(image!==null) {
|
|
var curWidth=ctx.canvas.width,
|
|
curHeight=ctx.canvas.height;
|
|
|
|
var imageDims=[image.width, image.height],
|
|
imageRatio=image.width/image.height,
|
|
canvasDims=imageDims;
|
|
|
|
if(canvasDims[0]>maxCanvasDims[0]) {
|
|
canvasDims[0]=maxCanvasDims[0];
|
|
canvasDims[1]=canvasDims[0]/imageRatio;
|
|
} else if(canvasDims[0]<minCanvasDims[0]) {
|
|
canvasDims[0]=minCanvasDims[0];
|
|
canvasDims[1]=canvasDims[0]/imageRatio;
|
|
}
|
|
if(canvasDims[1]>maxCanvasDims[1]) {
|
|
canvasDims[1]=maxCanvasDims[1];
|
|
canvasDims[0]=canvasDims[1]*imageRatio;
|
|
} else if(canvasDims[1]<minCanvasDims[1]) {
|
|
canvasDims[1]=minCanvasDims[1];
|
|
canvasDims[0]=canvasDims[1]*imageRatio;
|
|
}
|
|
elCanvas.prop('width',canvasDims[0]).prop('height',canvasDims[1]).css({'margin-left': -canvasDims[0]/2+'px', 'margin-top': -canvasDims[1]/2+'px'});
|
|
|
|
var ratioNewCurWidth=ctx.canvas.width/curWidth,
|
|
ratioNewCurHeight=ctx.canvas.height/curHeight,
|
|
ratioMin=Math.min(ratioNewCurWidth, ratioNewCurHeight);
|
|
|
|
theArea.setX(theArea.getX()*ratioNewCurWidth);
|
|
theArea.setY(theArea.getY()*ratioNewCurHeight);
|
|
theArea.setSize(theArea.getSize()*ratioMin);
|
|
} else {
|
|
elCanvas.prop('width',0).prop('height',0).css({'margin-top': 0});
|
|
}
|
|
|
|
drawScene();
|
|
|
|
};
|
|
|
|
this.setAreaMinSize=function(size) {
|
|
size=parseInt(size,10);
|
|
if(!isNaN(size)) {
|
|
theArea.setMinSize(size);
|
|
drawScene();
|
|
}
|
|
};
|
|
|
|
this.setResultImageSize=function(size) {
|
|
size=parseInt(size,10);
|
|
if(!isNaN(size)) {
|
|
resImgSize=size;
|
|
}
|
|
};
|
|
|
|
this.setResultImageFormat=function(format) {
|
|
resImgFormat = format;
|
|
};
|
|
|
|
this.setResultImageQuality=function(quality){
|
|
quality = parseFloat(quality);
|
|
if (!isNaN(quality) && quality>=0 && quality<=1){
|
|
resImgQuality = quality;
|
|
}
|
|
};
|
|
|
|
this.setAreaType=function(type) {
|
|
var curSize=theArea.getSize(),
|
|
curMinSize=theArea.getMinSize(),
|
|
curX=theArea.getX(),
|
|
curY=theArea.getY();
|
|
|
|
var AreaClass=CropAreaCircle;
|
|
if(type==='square') {
|
|
AreaClass=CropAreaSquare;
|
|
}
|
|
theArea = new AreaClass(ctx, events);
|
|
theArea.setMinSize(curMinSize);
|
|
theArea.setSize(curSize);
|
|
theArea.setX(curX);
|
|
theArea.setY(curY);
|
|
|
|
// resetCropHost();
|
|
if(image!==null) {
|
|
theArea.setImage(image);
|
|
}
|
|
|
|
drawScene();
|
|
};
|
|
|
|
/* Life Cycle begins */
|
|
|
|
// Init Context var
|
|
ctx = elCanvas[0].getContext('2d');
|
|
|
|
// Init CropArea
|
|
theArea = new CropAreaCircle(ctx, events);
|
|
|
|
// Init Mouse Event Listeners
|
|
$document.on('mousemove',onMouseMove);
|
|
elCanvas.on('mousedown',onMouseDown);
|
|
$document.on('mouseup',onMouseUp);
|
|
|
|
// Init Touch Event Listeners
|
|
$document.on('touchmove',onMouseMove);
|
|
elCanvas.on('touchstart',onMouseDown);
|
|
$document.on('touchend',onMouseUp);
|
|
|
|
// CropHost Destructor
|
|
this.destroy=function() {
|
|
$document.off('mousemove',onMouseMove);
|
|
elCanvas.off('mousedown',onMouseDown);
|
|
$document.off('mouseup',onMouseMove);
|
|
|
|
$document.off('touchmove',onMouseMove);
|
|
elCanvas.off('touchstart',onMouseDown);
|
|
$document.off('touchend',onMouseMove);
|
|
|
|
elCanvas.remove();
|
|
};
|
|
};
|
|
|
|
}]);
|
|
|
|
|
|
crop.factory('cropPubSub', [function() {
|
|
return function() {
|
|
var events = {};
|
|
// Subscribe
|
|
this.on = function(names, handler) {
|
|
names.split(' ').forEach(function(name) {
|
|
if (!events[name]) {
|
|
events[name] = [];
|
|
}
|
|
events[name].push(handler);
|
|
});
|
|
return this;
|
|
};
|
|
// Publish
|
|
this.trigger = function(name, args) {
|
|
angular.forEach(events[name], function(handler) {
|
|
handler.call(null, args);
|
|
});
|
|
return this;
|
|
};
|
|
};
|
|
}]);
|
|
|
|
crop.directive('imgCrop', ['$timeout', 'cropHost', 'cropPubSub', function($timeout, CropHost, CropPubSub) {
|
|
return {
|
|
restrict: 'E',
|
|
scope: {
|
|
image: '=',
|
|
resultImage: '=',
|
|
|
|
changeOnFly: '=',
|
|
areaType: '@',
|
|
areaMinSize: '=',
|
|
resultImageSize: '=',
|
|
resultImageFormat: '@',
|
|
resultImageQuality: '=',
|
|
|
|
onChange: '&',
|
|
onLoadBegin: '&',
|
|
onLoadDone: '&',
|
|
onLoadError: '&'
|
|
},
|
|
template: '<canvas></canvas>',
|
|
controller: ['$scope', function($scope) {
|
|
$scope.events = new CropPubSub();
|
|
}],
|
|
link: function(scope, element/*, attrs*/) {
|
|
// Init Events Manager
|
|
var events = scope.events;
|
|
|
|
// Init Crop Host
|
|
var cropHost=new CropHost(element.find('canvas'), {}, events);
|
|
|
|
// Store Result Image to check if it's changed
|
|
var storedResultImage;
|
|
|
|
var updateResultImage=function(scope) {
|
|
var resultImage=cropHost.getResultImageDataURI();
|
|
if(storedResultImage!==resultImage) {
|
|
storedResultImage=resultImage;
|
|
if(angular.isDefined(scope.resultImage)) {
|
|
scope.resultImage=resultImage;
|
|
}
|
|
scope.onChange({$dataURI: scope.resultImage});
|
|
}
|
|
};
|
|
|
|
// Wrapper to safely exec functions within $apply on a running $digest cycle
|
|
var fnSafeApply=function(fn) {
|
|
return function(){
|
|
$timeout(function(){
|
|
scope.$apply(function(scope){
|
|
fn(scope);
|
|
});
|
|
});
|
|
};
|
|
};
|
|
|
|
// Setup CropHost Event Handlers
|
|
events
|
|
.on('load-start', fnSafeApply(function(scope){
|
|
scope.onLoadBegin({});
|
|
}))
|
|
.on('load-done', fnSafeApply(function(scope){
|
|
scope.onLoadDone({});
|
|
}))
|
|
.on('load-error', fnSafeApply(function(scope){
|
|
scope.onLoadError({});
|
|
}))
|
|
.on('area-move area-resize', fnSafeApply(function(scope){
|
|
if(!!scope.changeOnFly) {
|
|
updateResultImage(scope);
|
|
}
|
|
}))
|
|
.on('area-move-end area-resize-end image-updated', fnSafeApply(function(scope){
|
|
updateResultImage(scope);
|
|
}));
|
|
|
|
// Sync CropHost with Directive's options
|
|
scope.$watch('image',function(){
|
|
cropHost.setNewImageSource(scope.image);
|
|
});
|
|
scope.$watch('areaType',function(){
|
|
cropHost.setAreaType(scope.areaType);
|
|
updateResultImage(scope);
|
|
});
|
|
scope.$watch('areaMinSize',function(){
|
|
cropHost.setAreaMinSize(scope.areaMinSize);
|
|
updateResultImage(scope);
|
|
});
|
|
scope.$watch('resultImageSize',function(){
|
|
cropHost.setResultImageSize(scope.resultImageSize);
|
|
updateResultImage(scope);
|
|
});
|
|
scope.$watch('resultImageFormat',function(){
|
|
cropHost.setResultImageFormat(scope.resultImageFormat);
|
|
updateResultImage(scope);
|
|
});
|
|
scope.$watch('resultImageQuality',function(){
|
|
cropHost.setResultImageQuality(scope.resultImageQuality);
|
|
updateResultImage(scope);
|
|
});
|
|
|
|
// Update CropHost dimensions when the directive element is resized
|
|
scope.$watch(
|
|
function () {
|
|
return [element[0].clientWidth, element[0].clientHeight];
|
|
},
|
|
function (value) {
|
|
cropHost.setMaxDimensions(value[0],value[1]);
|
|
updateResultImage(scope);
|
|
},
|
|
true
|
|
);
|
|
|
|
// Destroy CropHost Instance when the directive is destroying
|
|
scope.$on('$destroy', function(){
|
|
cropHost.destroy();
|
|
});
|
|
}
|
|
};
|
|
}]);
|
|
}()); |