dragonbones-runtime
Version:
the tools to build dragonbones file for diffrent framework
877 lines (876 loc) • 39.6 kB
JavaScript
var __reflect = (this && this.__reflect) || function (p, c, t) {
p.__class__ = c, t ? t.push(c) : t = [c], p.__types__ = p.__types__ ? t.concat(p.__types__) : t;
};
// The MIT License (MIT)
// Copyright (c) 2008 Jacob Seidelin
// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
var egret;
(function (egret) {
var experimental;
(function (experimental) {
/**
* @private
*/
experimental.debug = false;
experimental.ExifTags = {
0x9000: "ExifVersion",
0xA000: "FlashpixVersion",
0xA001: "ColorSpace",
0xA002: "PixelXDimension",
0xA003: "PixelYDimension",
0x9101: "ComponentsConfiguration",
0x9102: "CompressedBitsPerPixel",
// user information
0x927C: "MakerNote",
0x9286: "UserComment",
// related file
0xA004: "RelatedSoundFile",
// date and time
0x9003: "DateTimeOriginal",
0x9004: "DateTimeDigitized",
0x9290: "SubsecTime",
0x9291: "SubsecTimeOriginal",
0x9292: "SubsecTimeDigitized",
// picture-taking conditions
0x829A: "ExposureTime",
0x829D: "FNumber",
0x8822: "ExposureProgram",
0x8824: "SpectralSensitivity",
0x8827: "ISOSpeedRatings",
0x8828: "OECF",
0x9201: "ShutterSpeedValue",
0x9202: "ApertureValue",
0x9203: "BrightnessValue",
0x9204: "ExposureBias",
0x9205: "MaxApertureValue",
0x9206: "SubjectDistance",
0x9207: "MeteringMode",
0x9208: "LightSource",
0x9209: "Flash",
0x9214: "SubjectArea",
0x920A: "FocalLength",
0xA20B: "FlashEnergy",
0xA20C: "SpatialFrequencyResponse",
0xA20E: "FocalPlaneXResolution",
0xA20F: "FocalPlaneYResolution",
0xA210: "FocalPlaneResolutionUnit",
0xA214: "SubjectLocation",
0xA215: "ExposureIndex",
0xA217: "SensingMethod",
0xA300: "FileSource",
0xA301: "SceneType",
0xA302: "CFAPattern",
0xA401: "CustomRendered",
0xA402: "ExposureMode",
0xA403: "WhiteBalance",
0xA404: "DigitalZoomRation",
0xA405: "FocalLengthIn35mmFilm",
0xA406: "SceneCaptureType",
0xA407: "GainControl",
0xA408: "Contrast",
0xA409: "Saturation",
0xA40A: "Sharpness",
0xA40B: "DeviceSettingDescription",
0xA40C: "SubjectDistanceRange",
// other tags
0xA005: "InteroperabilityIFDPointer",
0xA420: "ImageUniqueID" // Identifier assigned uniquely to each image
};
experimental.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"
};
experimental.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"
};
experimental.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)) {
var arrayBuffer = base64ToArrayBuffer(img.src, "");
handleBinaryFile(arrayBuffer);
}
else if (/^blob\:/i.test(img.src)) {
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 (experimental.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 (experimental.debug)
console.log("Got file of length " + file.byteLength);
if ((dataView.getUint8(0) != 0xFF) || (dataView.getUint8(1) != 0xD8)) {
if (experimental.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 (experimental.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 (experimental.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 (experimental.debug)
console.log("Found 0xFFE1 marker");
return readEXIFData(dataView, offset + 4);
// offset += 2 + file.getShortAt(offset+2, true);
}
else {
offset += 2 + dataView.getUint16(offset + 2);
}
}
}
function findIPTCinJPEG(file) {
var dataView = new DataView(file);
if (experimental.debug)
console.log("Got file of length " + file.byteLength);
if ((dataView.getUint8(0) != 0xFF) || (dataView.getUint8(1) != 0xD8)) {
if (experimental.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 && experimental.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 (experimental.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 (experimental.debug)
console.log("Not valid TIFF data! (no 0x4949 or 0x4D4D)");
return false;
}
if (file.getUint16(tiffOffset + 2, !bigEnd) != 0x002A) {
if (experimental.debug)
console.log("Not valid TIFF data! (no 0x002A)");
return false;
}
var firstIFDOffset = file.getUint32(tiffOffset + 4, !bigEnd);
if (firstIFDOffset < 0x00000008) {
if (experimental.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, experimental.TiffTags, bigEnd);
if (tags.ExifIFDPointer) {
exifData = readTags(file, tiffOffset, tiffOffset + tags.ExifIFDPointer, experimental.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] = experimental.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] =
experimental.StringValues.Components[exifData[tag][0]] +
experimental.StringValues.Components[exifData[tag][1]] +
experimental.StringValues.Components[exifData[tag][2]] +
experimental.StringValues.Components[exifData[tag][3]];
break;
}
tags[tag] = exifData[tag];
}
}
if (tags.GPSInfoIFDPointer) {
gpsData = readTags(file, tiffOffset, tiffOffset + tags.GPSInfoIFDPointer, experimental.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;
}
var EXIF = (function () {
function EXIF() {
}
EXIF.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;
};
EXIF.getTag = function (img, tag) {
if (!imageHasData(img))
return;
return img.exifdata[tag];
};
EXIF.getIptcTag = function (img, tag) {
if (!imageHasData(img))
return;
return img.iptcdata[tag];
};
EXIF.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;
};
EXIF.getAllIptcTags = function (img) {
if (!imageHasData(img))
return {};
var a, data = img.iptcdata, tags = {};
for (a in data) {
if (data.hasOwnProperty(a)) {
tags[a] = data[a];
}
}
return tags;
};
EXIF.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;
};
EXIF.readFromBinaryFile = function (file) {
return findEXIFinJPEG(file);
};
return EXIF;
}());
experimental.EXIF = EXIF;
__reflect(EXIF.prototype, "egret.experimental.EXIF");
})(experimental = egret.experimental || (egret.experimental = {}));
})(egret || (egret = {}));
var egret;
(function (egret) {
var experimental;
(function (experimental) {
/**
* @language en_US
* The pickPhoto method provides ability for picking a photo.
* @version Egret 4.0
* @platform Web
*/
/**
* @language zh_CN
* pickPhoto API提供用于选取照片的方法。
* @version Egret 4.0
* @platform Web
*/
function pickPhoto() {
return new Promise(function (resolve, reject) {
var fileInput = document.createElement("input");
fileInput.type = "file";
fileInput.accept = "image/*";
fileInput.style.display = "none";
document.body.insertBefore(fileInput, document.body.firstChild);
fileInput.addEventListener("change", function (evt) {
var mime = { "png": "image/png", "jpg": "image/jpeg", "jpeg": "image/jpeg", "bmp": "image/bmp" };
var file = evt.target.files[0];
var type = file.type;
if (!type) {
type = mime[file.name.match(/\.([^\.]+)$/i)[1]];
}
var ret = "";
if (window.URL) {
ret = window["URL"]["createObjectURL"](file);
}
else {
ret = window["webkitURL"]["createObjectURL"](file);
}
var xhr = new XMLHttpRequest();
xhr.open("GET", ret, true);
xhr.responseType = "blob";
xhr.onload = function (e) {
if (this["status"] == 200) {
var myBlob = this["response"];
var arrayBuffer_1 = null;
var fileReader = new FileReader();
fileReader.onload = function () {
arrayBuffer_1 = this.result;
var exif = experimental.EXIF.readFromBinaryFile(arrayBuffer_1);
var orientation = -1;
if (exif) {
orientation = exif["Orientation"];
}
var image = new Image();
image.onload = function () {
var canvas = document.createElement("canvas");
var ctx = canvas.getContext("2d");
canvas.width = image.width;
canvas.height = image.height;
if (orientation > 4) {
canvas.width = image.height;
canvas.height = image.width;
}
ctx.clearRect(0, 0, canvas.width, canvas.height);
switch (orientation) {
case 2:
// horizontal flip
ctx.translate(canvas.width, 0);
ctx.scale(-1, 1);
break;
case 3:
// 180° rotate left
ctx.translate(canvas.width, canvas.height);
ctx.rotate(Math.PI);
break;
case 4:
ctx.translate(0, canvas.height);
ctx.scale(1, -1);
break;
case 5:
ctx.rotate(0.5 * Math.PI);
ctx.scale(1, -1);
break;
case 6:
ctx.rotate(0.5 * Math.PI);
ctx.translate(0, -image.height);
break;
case 7:
ctx.rotate(0.5 * Math.PI);
ctx.translate(canvas.width, -canvas.height);
ctx.scale(-1, 1);
break;
case 8:
ctx.rotate(-0.5 * Math.PI);
ctx.translate(-canvas.height, 0);
break;
default: ctx.transform(1, 0, 0, 1, 0, 0);
}
ctx.drawImage(image, 0, 0);
var imagetype = "png";
if (orientation !== -1) {
imagetype = "jpeg";
}
var resultURL = "";
if (imagetype === "jpg" || imagetype === "jpeg") {
resultURL = canvas.toDataURL("image/" + imagetype);
}
else {
resultURL = canvas.toDataURL("image/" + imagetype);
}
resolve(resultURL);
image.parentNode.removeChild(image);
fileInput.parentNode.removeChild(fileInput);
};
image.src = ret;
image.style.display = "none";
document.body.appendChild(image);
fileInput.value = "";
};
fileReader.readAsArrayBuffer(myBlob);
}
};
xhr.send();
}, false);
fileInput.click();
});
}
experimental.pickPhoto = pickPhoto;
})(experimental = egret.experimental || (egret.experimental = {}));
})(egret || (egret = {}));