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sources/apps/files_svgedit/svg-edit/extensions/ext-eyedropper.js
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/*
* ext-eyedropper.js
*
* Licensed under the Apache License, Version 2
*
* Copyright(c) 2010 Jeff Schiller
*
*/
// Dependencies:
// 1) jQuery
// 2) history.js
// 3) svg_editor.js
// 4) svgcanvas.js
svgEditor.addExtension("eyedropper", function(S) {
var svgcontent = S.svgcontent,
svgns = "http://www.w3.org/2000/svg",
svgdoc = S.svgroot.parentNode.ownerDocument,
svgCanvas = svgEditor.canvas,
ChangeElementCommand = svgedit.history.ChangeElementCommand,
addToHistory = function(cmd) { svgCanvas.undoMgr.addCommandToHistory(cmd); },
currentStyle = {fillPaint: "red", fillOpacity: 1.0,
strokePaint: "black", strokeOpacity: 1.0,
strokeWidth: 5, strokeDashArray: null,
opacity: 1.0,
strokeLinecap: 'butt',
strokeLinejoin: 'miter',
};
function getStyle(opts) {
// if we are in eyedropper mode, we don't want to disable the eye-dropper tool
var mode = svgCanvas.getMode();
if (mode == "eyedropper") return;
var elem = null;
var tool = $('#tool_eyedropper');
// enable-eye-dropper if one element is selected
if (!opts.multiselected && opts.elems[0] &&
$.inArray(opts.elems[0].nodeName, ['svg', 'g', 'use']) == -1)
{
elem = opts.elems[0];
tool.removeClass('disabled');
// grab the current style
currentStyle.fillPaint = elem.getAttribute("fill") || "black";
currentStyle.fillOpacity = elem.getAttribute("fill-opacity") || 1.0;
currentStyle.strokePaint = elem.getAttribute("stroke");
currentStyle.strokeOpacity = elem.getAttribute("stroke-opacity") || 1.0;
currentStyle.strokeWidth = elem.getAttribute("stroke-width");
currentStyle.strokeDashArray = elem.getAttribute("stroke-dasharray");
currentStyle.strokeLinecap = elem.getAttribute("stroke-linecap");
currentStyle.strokeLinejoin = elem.getAttribute("stroke-linejoin");
currentStyle.opacity = elem.getAttribute("opacity") || 1.0;
}
// disable eye-dropper tool
else {
tool.addClass('disabled');
}
}
return {
name: "eyedropper",
svgicons: "extensions/eyedropper-icon.xml",
buttons: [{
id: "tool_eyedropper",
type: "mode",
title: "Eye Dropper Tool",
key: "I",
events: {
"click": function() {
svgCanvas.setMode("eyedropper");
}
}
}],
// if we have selected an element, grab its paint and enable the eye dropper button
selectedChanged: getStyle,
elementChanged: getStyle,
mouseDown: function(opts) {
var mode = svgCanvas.getMode();
if (mode == "eyedropper") {
var e = opts.event;
var target = e.target;
if ($.inArray(target.nodeName, ['svg', 'g', 'use']) == -1) {
var changes = {};
var change = function(elem, attrname, newvalue) {
changes[attrname] = elem.getAttribute(attrname);
elem.setAttribute(attrname, newvalue);
};
if (currentStyle.fillPaint) change(target, "fill", currentStyle.fillPaint);
if (currentStyle.fillOpacity) change(target, "fill-opacity", currentStyle.fillOpacity);
if (currentStyle.strokePaint) change(target, "stroke", currentStyle.strokePaint);
if (currentStyle.strokeOpacity) change(target, "stroke-opacity", currentStyle.strokeOpacity);
if (currentStyle.strokeWidth) change(target, "stroke-width", currentStyle.strokeWidth);
if (currentStyle.strokeDashArray) change(target, "stroke-dasharray", currentStyle.strokeDashArray);
if (currentStyle.opacity) change(target, "opacity", currentStyle.opacity);
if (currentStyle.strokeLinecap) change(target, "stroke-linecap", currentStyle.strokeLinecap);
if (currentStyle.strokeLinejoin) change(target, "stroke-linejoin", currentStyle.strokeLinejoin);
addToHistory(new ChangeElementCommand(target, changes));
}
}
},
};
});
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