434 lines
19 KiB
JavaScript
434 lines
19 KiB
JavaScript
/*
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Copyright (c) 2014 Christophe Matthieu,
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation
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files (the "Software"), to deal in the Software without
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restriction, including without limitation the rights to use,
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copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following
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conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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*/
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(function($){
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'use strict';
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var rad = Math.PI/180;
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// public methods
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var methods = {
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init : function(settings) {
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return this.each(function() {
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var $this = $(this), transfo = $this.data('transfo');
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if (!transfo) {
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_init($this, settings);
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} else {
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_overwriteOptions($this, transfo, settings);
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_targetCss($this, transfo);
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}
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});
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},
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destroy : function() {
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return this.each(function() {
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var $this = $(this);
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if ($this.data('transfo')) {
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_destroy($this);
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}
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});
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},
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reset : function() {
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return this.each(function() {
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var $this = $(this);
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if ($this.data('transfo')) {
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_reset($this);
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}
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});
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},
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toggle : function() {
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return this.each(function() {
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var $this = $(this);
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var transfo = $this.data('transfo');
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if (transfo) {
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transfo.settings.hide = !transfo.settings.hide;
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_showHide($this, transfo);
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}
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});
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},
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hide : function() {
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return this.each(function() {
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var $this = $(this);
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var transfo = $this.data('transfo');
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if (transfo) {
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transfo.settings.hide = true;
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_showHide($this, transfo);
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}
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});
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},
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show : function() {
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return this.each(function() {
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var $this = $(this);
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var transfo = $this.data('transfo');
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if (transfo) {
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transfo.settings.hide = false;
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_showHide($this, transfo);
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}
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});
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},
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settings : function() {
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if(this.length > 1) {
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this.map(function () {
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var $this = $(this);
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return $this.data('transfo') && $this.data('transfo').settings;
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});
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}
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return this.data('transfo') && $this.data('transfo').settings;
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},
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center : function() {
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if(this.length > 1) {
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this.map(function () {
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var $this = $(this);
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return $this.data('transfo') && $this.data('transfo').$center.offset();
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});
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}
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return this.data('transfo') && this.data('transfo').$center.offset();
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}
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};
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$.fn.transfo = function( method ) {
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if ( methods[method] ) {
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return methods[method].apply( this, Array.prototype.slice.call( arguments, 1 ));
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} else if ( typeof method === 'object' || ! method ) {
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return methods.init.apply( this, arguments );
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} else {
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$.error( 'Method ' + method + ' does not exist on jQuery.transfo' );
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}
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return false;
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};
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function _init ($this, settings) {
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var transfo = {};
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$this.data('transfo', transfo);
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transfo.settings = settings;
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// generate all the controls markup
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var css = "box-sizing: border-box; position: absolute; background-color: #fff; border: 1px solid #ccc; width: 8px; height: 8px; margin-left: -4px; margin-top: -4px;";
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transfo.$markup = $(''
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+ '<div class="transfo-controls">'
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+ '<div style="cursor: crosshair; position: absolute; margin: -30px; top: 0; right: 0; padding: 1px 0 0 1px;" class="transfo-rotator">'
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+ '<span class="fa-stack fa-lg">'
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+ '<i class="fa fa-circle fa-stack-2x"></i>'
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+ '<i class="fa fa-repeat fa-stack-1x fa-inverse"></i>'
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+ '</span>'
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+ '</div>'
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+ '<div style="' + css + 'top: 0%; left: 0%; cursor: nw-resize;" class="transfo-scaler-tl"></div>'
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+ '<div style="' + css + 'top: 0%; left: 100%; cursor: ne-resize;" class="transfo-scaler-tr"></div>'
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+ '<div style="' + css + 'top: 100%; left: 100%; cursor: se-resize;" class="transfo-scaler-br"></div>'
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+ '<div style="' + css + 'top: 100%; left: 0%; cursor: sw-resize;" class="transfo-scaler-bl"></div>'
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+ '<div style="' + css + 'top: 0%; left: 50%; cursor: n-resize;" class="transfo-scaler-tc"></div>'
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+ '<div style="' + css + 'top: 100%; left: 50%; cursor: s-resize;" class="transfo-scaler-bc"></div>'
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+ '<div style="' + css + 'top: 50%; left: 0%; cursor: w-resize;" class="transfo-scaler-ml"></div>'
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+ '<div style="' + css + 'top: 50%; left: 100%; cursor: e-resize;" class="transfo-scaler-mr"></div>'
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+ '<div style="' + css + 'border: 0; width: 0px; height: 0px; top: 50%; left: 50%;" class="transfo-scaler-mc"></div>'
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+ '</div>');
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transfo.$center = transfo.$markup.find(".transfo-scaler-mc");
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// init setting and get css to set wrap
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_setOptions($this, transfo);
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_overwriteOptions ($this, transfo, settings);
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// append controls to container
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$("body").append(transfo.$markup);
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// set transfo container and markup
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setTimeout(function () {
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_targetCss($this, transfo);
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},0);
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_bind($this, transfo);
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_targetCss($this, transfo);
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}
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function _overwriteOptions ($this, transfo, settings) {
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transfo.settings = $.extend(transfo.settings, settings || {});
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}
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function _setOptions ($this, transfo) {
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var style = $this.attr("style") || "";
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var transform = style.match(/transform\s*:([^;]+)/) ? style.match(/transform\s*:([^;]+)/)[1] : "";
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transfo.settings = {};
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transfo.settings.angle= transform.indexOf('rotate') != -1 ? parseFloat(transform.match(/rotate\(([^)]+)deg\)/)[1]) : 0;
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transfo.settings.scalex= transform.indexOf('scaleX') != -1 ? parseFloat(transform.match(/scaleX\(([^)]+)\)/)[1]) : 1;
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transfo.settings.scaley= transform.indexOf('scaleY') != -1 ? parseFloat(transform.match(/scaleY\(([^)]+)\)/)[1]) : 1;
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transfo.settings.style = style.replace(/[^;]*transform[^;]+/g, '').replace(/;+/g, ';');
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$this.attr("style", transfo.settings.style);
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transfo.settings.height = $this.innerHeight();
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transfo.settings.width = $this.innerWidth();
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var translatex = transform.match(/translateX\(([0-9.-]+)(%|px)\)/);
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var translatey = transform.match(/translateY\(([0-9.-]+)(%|px)\)/);
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transfo.settings.translate = "%";
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if (translatex && translatex[2] === "%") {
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transfo.settings.translatexp = parseFloat(translatex[1]);
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transfo.settings.translatex = transfo.settings.translatexp / 100 * transfo.settings.width;
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} else {
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transfo.settings.translatex = translatex ? parseFloat(translatex[1]) : 0;
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}
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if (translatey && translatey[2] === "%") {
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transfo.settings.translateyp = parseFloat(translatey[1]);
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transfo.settings.translatey = transfo.settings.translateyp / 100 * transfo.settings.height;
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} else {
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transfo.settings.translatey = translatey ? parseFloat(translatey[1]) : 0;
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}
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transfo.settings.css = window.getComputedStyle($this[0], null);
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transfo.settings.pos = $this.offset();
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transfo.settings.rotationStep = 5;
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transfo.settings.hide = false;
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transfo.settings.callback = function () {};
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}
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function _bind ($this, transfo) {
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function mousedown (event) {
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_mouseDown($this, this, transfo, event);
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$(document).on("mousemove", mousemove).on("mouseup", mouseup);
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}
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function mousemove (event) {
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_mouseMove($this, this, transfo, event);
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}
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function mouseup (event) {
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_mouseUp($this, this, transfo, event);
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$(document).off("mousemove", mousemove).off("mouseup", mouseup);
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}
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transfo.$markup.off().on("mousedown", mousedown);
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transfo.$markup.find(">:not(.transfo-scaler-mc)").off().on("mousedown", mousedown);
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}
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function _mouseDown($this, div, transfo, event) {
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event.preventDefault();
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if (transfo.active || event.which !== 1) return;
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var type = "position", $e = $(div);
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if ($e.hasClass("transfo-rotator")) type = "rotator";
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else if ($e.hasClass("transfo-scaler-tl")) type = "tl";
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else if ($e.hasClass("transfo-scaler-tr")) type = "tr";
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else if ($e.hasClass("transfo-scaler-br")) type = "br";
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else if ($e.hasClass("transfo-scaler-bl")) type = "bl";
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else if ($e.hasClass("transfo-scaler-tc")) type = "tc";
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else if ($e.hasClass("transfo-scaler-bc")) type = "bc";
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else if ($e.hasClass("transfo-scaler-ml")) type = "ml";
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else if ($e.hasClass("transfo-scaler-mr")) type = "mr";
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transfo.active = {
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"type": type,
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"scalex": transfo.settings.scalex,
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"scaley": transfo.settings.scaley,
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"pageX": event.pageX,
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"pageY": event.pageY,
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"center": transfo.$center.offset(),
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};
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}
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function _mouseUp($this, div, transfo, event) {
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transfo.active = null;
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}
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function _mouseMove($this, div, transfo, event) {
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event.preventDefault();
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if (!transfo.active) return;
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var settings = transfo.settings;
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var center = transfo.active.center;
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var cdx = center.left - event.pageX;
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var cdy = center.top - event.pageY;
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if (transfo.active.type == "rotator") {
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var ang, dang = Math.atan((settings.width * settings.scalex) / (settings.height * settings.scaley)) / rad;
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if (cdy) ang = Math.atan(- cdx / cdy) / rad;
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else ang = 0;
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if (event.pageY >= center.top && event.pageX >= center.left) ang += 180;
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else if (event.pageY >= center.top && event.pageX < center.left) ang += 180;
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else if (event.pageY < center.top && event.pageX < center.left) ang += 360;
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ang -= dang;
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if (settings.scaley < 0 && settings.scalex < 0) ang += 180;
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if (!event.ctrlKey) {
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settings.angle = Math.round(ang / transfo.settings.rotationStep) * transfo.settings.rotationStep;
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} else {
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settings.angle = ang;
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}
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// reset position : don't move center
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_targetCss($this, transfo);
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var new_center = transfo.$center.offset();
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var x = center.left - new_center.left;
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var y = center.top - new_center.top;
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var angle = ang * rad;
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settings.translatex += x*Math.cos(angle) - y*Math.sin(-angle);
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settings.translatey += - x*Math.sin(angle) + y*Math.cos(-angle);
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}
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else if (transfo.active.type == "position") {
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var angle = settings.angle * rad;
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var x = event.pageX - transfo.active.pageX;
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var y = event.pageY - transfo.active.pageY;
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transfo.active.pageX = event.pageX;
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transfo.active.pageY = event.pageY;
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var dx = x*Math.cos(angle) - y*Math.sin(-angle);
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var dy = - x*Math.sin(angle) + y*Math.cos(-angle);
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settings.translatex += dx;
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settings.translatey += dy;
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}
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else if (transfo.active.type.length === 2) {
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var angle = settings.angle * rad;
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var dx = cdx*Math.cos(angle) - cdy*Math.sin(-angle);
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var dy = - cdx*Math.sin(angle) + cdy*Math.cos(-angle);
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if (transfo.active.type.indexOf("t") != -1) {
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settings.scaley = dy / (settings.height/2);
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}
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if (transfo.active.type.indexOf("b") != -1) {
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settings.scaley = - dy / (settings.height/2);
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}
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if (transfo.active.type.indexOf("l") != -1) {
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settings.scalex = dx / (settings.width/2);
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}
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if (transfo.active.type.indexOf("r") != -1) {
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settings.scalex = - dx / (settings.width/2);
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}
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if (settings.scaley > 0 && settings.scaley < 0.05) settings.scaley = 0.05;
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if (settings.scalex > 0 && settings.scalex < 0.05) settings.scalex = 0.05;
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if (settings.scaley < 0 && settings.scaley > -0.05) settings.scaley = -0.05;
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if (settings.scalex < 0 && settings.scalex > -0.05) settings.scalex = -0.05;
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if (event.shiftKey &&
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(transfo.active.type === "tl" || transfo.active.type === "bl" ||
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transfo.active.type === "tr" || transfo.active.type === "br")) {
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settings.scaley = settings.scalex;
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}
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}
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settings.angle = Math.round(settings.angle);
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settings.translatex = Math.round(settings.translatex);
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settings.translatey = Math.round(settings.translatey);
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settings.scalex = Math.round(settings.scalex*100)/100;
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settings.scaley = Math.round(settings.scaley*100)/100;
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_targetCss($this, transfo);
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return false;
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}
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function _setCss($this, css, settings) {
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var transform = "";
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var trans = false;
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if (settings.angle !== 0) {
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trans = true;
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transform += " rotate("+settings.angle+"deg) ";
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}
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if (settings.translatex) {
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trans = true;
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transform += " translateX("+(settings.translate === "%" ? settings.translatexp+"%" : settings.translatex+"px")+") ";
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}
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if (settings.translatey) {
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trans = true;
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transform += " translateY("+(settings.translate === "%" ? settings.translateyp+"%" : settings.translatey+"px")+") ";
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}
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if (settings.scalex != 1) {
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trans = true;
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transform += " scaleX("+settings.scalex+") ";
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}
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if (settings.scaley != 1){
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trans = true;
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transform += " scaleY("+settings.scaley+") ";
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}
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if (trans) {
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css += ";"
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/* Safari */
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css += "-webkit-transform:" + transform + ";"
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/* Firefox */
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+ "-moz-transform:" + transform + ";"
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/* IE */
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+ "-ms-transform:" + transform + ";"
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/* Opera */
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+ "-o-transform:" + transform + ";"
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/* Other */
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+ "transform:" + transform + ";";
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}
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css = css.replace(/(\s*;)+/g, ';').replace(/^\s*;|;\s*$/g, '');
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$this.attr("style", css);
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}
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function _targetCss ($this, transfo) {
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var settings = transfo.settings;
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var width = parseFloat(settings.css.width);
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var height = parseFloat(settings.css.height);
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settings.translatexp = Math.round(settings.translatex/width*1000)/10;
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settings.translateyp = Math.round(settings.translatey/height*1000)/10;
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_setCss($this, settings.style, settings);
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_setCss(transfo.$markup,
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"position: absolute;" +
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"top:" + settings.pos.top + "px;" +
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"left:" + settings.pos.left + "px;" +
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"width:" + width + "px;" +
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"height:" + height + "px;" +
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"cursor: move;",
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settings);
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transfo.$markup.find(">").css("transform", "scaleX("+(1/settings.scalex)+") scaleY("+(1/settings.scaley)+")");
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_showHide($this, transfo);
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transfo.settings.callback.call($this[0], $this);
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}
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function _showHide ($this, transfo) {
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transfo.$markup.css("z-index", transfo.settings.hide ? -1 : 1000);
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if (transfo.settings.hide) {
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transfo.$markup.find(">").hide();
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transfo.$markup.find(".transfo-scaler-mc").show();
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} else {
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transfo.$markup.find(">").show();
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}
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}
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function _destroy ($this) {
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$this.data('transfo').$markup.remove();
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$this.removeData('transfo');
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}
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function _reset ($this) {
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var transfo = $this.data('transfo');
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_destroy($this);
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$this.transfo(transfo.settings);
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}
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})(jQuery);
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