dl/lib/ocdn-legacy/OcdnImagesUrl.js

DreamLab Libs

var Class = require("core").Class;

var OcdnFilesUrl = require('./OcdnFilesUrl.js').OcdnFilesUrl,
    OcdnTransformation = require('./OcdnTransformation.js').OcdnTransformation;

var OcdnImagesUrl = function(){
    this.Extends = OcdnFilesUrl;

    this.initialize = function(key, url) {

        if (arguments.length == 1) {
            url = key;
            key = undefined;
        }

        this.parent(key, url, true);

        this.init(url);
    };

    this.init = function (url) {
        if (url) {
            this.parent(url);
            this.parse(url);
        } else {
            this.setPlugin('images');
        }
    };

    this.parse = function (url) {
        this.parent(url);
        this.setPlugin('images');
    };

    this._getShortAppId = function () {
        var appId = this._appName.split('.');
        var length = appId.length;
        if (appId[length-3] == 'front' && length > 5) {
            if (appId[0]=='www') {
                return appId[1];
            } else {
                return appId[0];
            }
        } else {
            return appId[length-3];
        }
    };

    this.clearTransformations = function () {
        this._transformations = [];
        return this;
    };

    //
    // T R A N S F O R M S
    //

    this.rotate = function (angle) {
        this._transformations.push({
            transformation: OcdnTransformation.Transformation.ROTATE,
            params: [angle]
        });
        return this;
    };

    this.blur = function (amount) {
        this._transformations.push({
            transformation: OcdnTransformation.Transformation.BLUR,
            params: [amount]
        });
        return this;
    };

    this.resize = function (width, height, scaleUp, scaleDown) {
        width = width || 0;
        height = height || 0;

        if(typeof scaleUp == "undefined"){
            scaleUp = true;
        }
        scaleUp = +(scaleUp>0);

        if(typeof scaleDown == "undefined"){
            scaleDown = true;
        }
        scaleDown = +(scaleDown>0);

        if (!width && !height) {
            throw "Ocdn Resize: at least one width and height";
        }
        this._transformations.push({
            transformation: OcdnTransformation.Transformation.RESIZE,
            params: [width, height, scaleUp, scaleDown]
        });
        return this;
    };

    this.crop = function (x, y, width, height) {
        this._transformations.push({
            transformation: OcdnTransformation.Transformation.CROP,
            params: [x, y, width, height]
        });
        return this;
    };

    this.grayscale = function () {
        this._transformations.push({
            transformation: OcdnTransformation.Transformation.GRAYSCALE,
            params: []
        });
        return this;
    };

    this.boundingBox = function (width, height) {
        this._transformations.push({
            transformation: OcdnTransformation.Transformation.BOUNDING_BOX,
            params: [width, height]
        });
        return this;
    };
    this.resizeCropAuto = this.boundingBox;

    this.qualityPreset = function (preset) {
        this._transformations.push({
            transformation: OcdnTransformation.Transformation.QUALITY_PRESET,
            params: [preset]
        });
        return this;
    };

    this.setBackground = function (r, g, b, a) {
        this._transformations.push({
            transformation: OcdnTransformation.Transformation.SETBACKGROUND,
            params: [r, g, b, a]
        });
        return this;
    };

    this.preserveAnimation = function () {
        console.warn('core.ocdn.OcdnImagesUrl.preserveAnimation is obsolete!');
        return this;
    };

    this.disableAnimation = function () {
        this._transformations.push({
            transformation: OcdnTransformation.Transformation.DISABLEANIMATION,
            params: []
        });
        return this;
    };

    this.combine = function (name, ext, fit, anchor, operation) {
        this._transformations.push({
            transformation: OcdnTransformation.Transformation.COMBINE,
            params: [
                name,
                ext,
                fit != 0 ? 1 : 0,
                anchor,
                operation
            ]
        });
        return this;
    };
};

OcdnImagesUrl = new Class(new OcdnImagesUrl());

OcdnImagesUrl.SUPPORTED_IMAGE_FORMATS = {
    'jpg'          : 0,
    'png'          : 1,
    'bmp'          : 2,
    'tiff'         : 3,
};

OcdnImagesUrl.COMBINE_OPERATIONS = {
    'over'         : 0,
    'in'           : 1,
    'out'          : 2,
    'atop'         : 3,
    'xor'          : 4,
    'plus'         : 5,
    'minus'        : 6,
    'add'          : 7,
    'subtract'     : 8,
    'difference'   : 9,
    'divide'       : 10,
    'multiply'     : 11,
    'bumpmap'      : 12,
    'copy'         : 13,
    'copyRed'      : 14,
    'copyGreen'    : 15,
    'copyBlue'     : 16,
    'copyOpacity'  : 17,
    'copyCyan'     : 18,
    'copyMagenta'  : 19,
    'copyYellow'   : 20,
    'copyBlack'    : 21,
};

OcdnImagesUrl.COMBINE_ANCHORS = {
    'northWest'    : 0,
    'north'        : 1,
    'northEast'    : 2,
    'west'         : 3,
    'center'       : 4,
    'east'         : 5,
    'southWest'    : 6,
    'south'        : 7,
    'southEast'    : 8,
};

exports.OcdnImagesUrl = OcdnImagesUrl;