Files
galaxy/config/plugins/visualizations/annotate_image/src/script.js
T
2019-09-06 14:56:08 -04:00

520 lines
24 KiB
JavaScript

import $ from "jquery";
import paper from "../node_modules/paper/dist/paper-full.min.js";
import "jquery-contextmenu";
import "jquery.ui.position";
import _ from "underscore";
import "../node_modules/jquery-contextmenu/dist/jquery.contextMenu.css";
var CommandManager = (function() {
function CommandManager() {}
CommandManager.executed = [];
CommandManager.unexecuted = [];
CommandManager.execute = function execute(cmd) {
cmd.execute();
CommandManager.executed.push(cmd);
};
CommandManager.undo = function undo() {
let cmd1 = CommandManager.executed.pop();
if (cmd1 !== undefined) {
if (cmd1.unexecute !== undefined) {
cmd1.unexecute();
}
CommandManager.unexecuted.push(cmd1);
}
};
CommandManager.redo = function redo() {
let cmd2 = CommandManager.unexecuted.pop();
if (cmd2 === undefined) {
cmd2 = CommandManager.executed.pop();
CommandManager.executed.push(cmd2);
CommandManager.executed.push(cmd2);
}
if (cmd2 !== undefined) {
cmd2.execute();
CommandManager.executed.push(cmd2);
}
};
return CommandManager;
})();
var generateUUID = function() {
let d = new Date().getTime();
let uuid = "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, function(c) {
let r = (d + Math.random() * 16) % 16 | 0;
d = Math.floor(d / 16);
return (c == "x" ? r : (r & 0x7) | 0x8).toString(16);
});
return uuid;
};
_.extend(window.bundleEntries || {}, {
load: function(opt) {
let chart = opt.chart;
let dataset = opt.dataset;
let defaults = {color: "red", width: 4, opacity: 0.5};
$.fn.createCanvas = function(options) {
let settings = $.extend({}, defaults, options || {});
let self = this;
this.setOptions = function(options) {
settings = $.extend(settings, options);
};
$(document).ready(function() {
$(self).each(function(eachIndex, eachItem) {
self.paths = [];
let img = eachItem;
// Get a reference to the canvas object
let canvas = $("<canvas>")
.attr({
width: options.img_width + "px",
height: options.img_height + "px"
})
.addClass("image-canvas")
.css({
position: "absolute",
top: "0px",
left: "0px"
});
$(img).after(canvas);
$(img).data("paths", []);
// Create an empty project and a view for the canvas
paper.setup(canvas[0]);
canvas[0].width = options.img_width;
canvas[0].height = options.img_height;
$(canvas).mouseenter(function() {
paper.projects[eachIndex].activate();
});
// Create a simple drawing tool:
let tool = new paper.Tool();
tool.onMouseMove = function(event) {
if (!$(".context-menu-list").is(":visible")) {
position = event.point;
paper.project.activeLayer.selected = false;
self.setPenColor(settings.color);
if (event.item) {
event.item.selected = true;
selectedItem = event.item;
self.setCursorHandOpen();
} else {
selectedItem = null;
}
}
};
tool.onMouseDown = function(event) {
switch (event.event.button) {
// leftclick
case 0:
// If we produced a path before, deselect it:
if (path) {
path.selected = false;
}
path = new paper.Path();
path.data.id = generateUUID();
path.strokeColor = settings.color;
path.strokeWidth = settings.width;
path.opacity = settings.opacity;
break;
// rightclick
case 2:
break;
}
};
tool.onMouseDrag = function(event) {
switch (event.event.button) {
// leftclick
case 0:
// Every drag event, add a point to the path at the current
// position of the mouse:
if (selectedItem) {
if (!mouseDownPoint) {
mouseDownPoint = selectedItem.position;
}
self.setCursorHandClose();
selectedItem.position = new paper.Point(
selectedItem.position.x + event.delta.x,
selectedItem.position.y + event.delta.y
);
}
else if (path) {
path.add(event.point);
}
break;
// rightclick
case 2:
break;
}
};
tool.onMouseUp = function(event) {
switch (event.event.button) {
// leftclick
case 0:
if (selectedItem) {
if (mouseDownPoint) {
let selectedItemId = selectedItem.id;
let draggingStartPoint = { x: mouseDownPoint.x, y: mouseDownPoint.y };
CommandManager.execute({
execute: function() {
//item was already moved, so do nothing
},
unexecute: function() {
$(paper.project.activeLayer.children).each(function(index, item) {
if (item.id == selectedItemId) {
if (item.segments) {
let middlePoint = new paper.Point(
(item.segments[item.segments.length - 1].point.x -
item.segments[0].point.x) /
2,
(item.segments[item.segments.length - 1].point.y -
item.segments[0].point.y) /
2
);
item.position = new paper.Point(
draggingStartPoint.x,
draggingStartPoint.y
);
} else {
item.position = draggingStartPoint;
}
return false;
}
});
}
});
mouseDownPoint = null;
}
} else {
// When the mouse is released, simplify it:
path.simplify();
path.remove();
let strPath = path.exportJSON({ asString: true });
let uid = generateUUID();
CommandManager.execute({
execute: function() {
path = new paper.Path();
path.importJSON(strPath);
path.data.uid = uid;
},
unexecute: function() {
$(paper.project.activeLayer.children).each(function(index, item) {
if (item.data && item.data.uid) {
if (item.data.uid == uid) {
item.remove();
}
}
});
}
});
}
break;
// rightclick
case 2:
contextPoint = event.point;
contextSelectedItemId = selectedItem ? selectedItem.data.id : "";
break;
}
};
tool.onKeyUp = function (event) {
if (selectedItem) {
// When a key is released, set the content of the text item:
if (selectedItem.content) {
if (event.key == 'backspace') selectedItem.content = selectedItem.content.slice(0, -1);
}
else {
selectedItem.content = selectedItem.content.replace('<some text>', '');
if (event.key == 'space') selectedItem.content += ' ';
else if (event.key.length == 1) selectedItem.content += event.key;
}
}
};
paper.view.draw();
});
});
let path;
let position;
let contextPoint;
let contextSelectedItemId;
let selectedItem;
let mouseDownPoint;
// TODO: to make it work
/*this.erase = function () {
let strPathArray = new Array();
$(paper.project.activeLayer.children).each(function (index, item) {
if (contextSelectedItemId) {
if (contextSelectedItemId.length == 0 || item.data.id == contextSelectedItemId) {
let strPath = item.exportJSON({ asString: true });
strPathArray.push(strPath);
}
}
});
CommandManager.execute({
execute: function () {
$(paper.project.activeLayer.children).each(function (index, item) {
if (contextSelectedItemId) {
if (contextSelectedItemId.length == 0 || item.data.id == contextSelectedItemId) {
item.remove();
}
}
});
},
unexecute: function () {
$(strPathArray).each(function (index, strPath) {
path = new paper.Path();
path.importJSON(strPath);
});
}
});
}*/
this.downloadCanvas = function (canvas, filename) {
/// create an "off-screen" anchor tag
let lnk = document.createElement('a'),
e;
/// the key here is to set the download attribute of the a tag
lnk.download = filename;
/// convert canvas content to data-uri for link. When download
/// attribute is set the content pointed to by link will be
/// pushed as "download" in HTML5 capable browsers
lnk.href = canvas.toDataURL();
/// create a "fake" click-event to trigger the download
if (document.createEvent) {
e = document.createEvent("MouseEvents");
e.initMouseEvent("click", true, true, window,
0, 0, 0, 0, 0, false, false, false,
false, 0, null);
lnk.dispatchEvent(e);
}
else if (lnk.fireEvent) {
lnk.fireEvent("onclick");
}
}
this.download = function () {
let canvas = paper.project.activeLayer.view.element,
img = $(canvas)[0];
let mergeCanvas = $('<canvas>')
.attr({
width: img.width,
height: img.height
});
let mergedContext = mergeCanvas[0].getContext('2d');
mergedContext.clearRect(0, 0, img.width, img.height);
mergedContext.drawImage(img, 0, 0);
mergedContext.drawImage(canvas, 0, 0);
self.downloadCanvas(mergeCanvas[0], "only-annotations.png");
// create canvas for original and annotations
let annotated_img = $(canvas).parent().find('img')[0];
let wt = $(annotated_img).width();
let ht = $(annotated_img).height();
let mergeCanvasAnnotated = $('<canvas>')
.attr({
width: $(annotated_img).width(),
height: $(annotated_img).height()
});
let mergedContextAnnotated = mergeCanvasAnnotated[0].getContext('2d');
mergedContextAnnotated.clearRect(0, 0, $(annotated_img).width(), $(annotated_img).height());
mergedContextAnnotated.drawImage(annotated_img, 0, 0);
mergedContextAnnotated.drawImage(canvas, 0, 0);
self.downloadCanvas(mergeCanvasAnnotated[0], "original-with-annotations.png");
}
this.setText = function () {
let uid = generateUUID();
let pos = contextPoint;
CommandManager.execute({
execute: function () {
let TXT_DBL_CLICK = "<<double click to edit>>";
let txt = TXT_DBL_CLICK;
let text = new paper.PointText(pos);
text.content = txt;
text.fillColor = settings.color;
text.fontSize = 14;
text.fontFamily = 'sans-serif';
text.data.uid = uid;
text.opacity = settings.opacity;
text.onDoubleClick = function (event) {
if (this.className == 'PointText') {
let txt = prompt("Type in your text", this.content.replace(TXT_DBL_CLICK, ''));
if (txt.length > 0)
this.content = txt;
}
}
},
unexecute: function () {
$(paper.project.activeLayer.children).each(function (index, item) {
if (item.data && item.data.uid) {
if (item.data.uid == uid) {
item.remove();
}
}
});
}
});
}
this.setPenColor = function (color) {
self.setOptions({ color: color });
$('.image-canvas').css('cursor', "url(/static/plugins/visualizations/annotate_image/static/images/" + color + "-pen.png) 14 50, auto");
}
this.setCursorHandOpen = function () {
$('.image-canvas').css('cursor', "url(/static/plugins/visualizations/annotate_image/static/images/hand-open.png) 25 25, auto");
}
this.setCursorHandClose = function () {
$('.image-canvas').css('cursor', "url(/static/plugins/visualizations/annotate_image/static/images/hand-close.png) 25 25, auto");
}
$.contextMenu({
selector: '.image-canvas',
callback: function (key, options) {
switch (key) {
//COMMANDS
case 'undo':
CommandManager.undo();
break;
case 'redo':
CommandManager.redo();
break;
case 'erase':
self.erase();
break;
case 'download':
self.download();
break;
//TOOLS
case 'text':
self.setText();
break;
//PENS
case 'blackPen':
self.setPenColor('black');
break;
case 'redPen':
self.setPenColor('red');
break;
case 'greenPen':
self.setPenColor('green');
break;
case 'bluePen':
self.setPenColor('blue');
break;
case 'yellowPen':
self.setPenColor('yellow');
break;
}
},
items: {
"undo": { name: "Undo", icon: "undo" },
"redo": { name: "Redo", icon: "redo" },
"download": { name: "Download", icon: "download" },
"sep1": "---------",
"text": { name: "Text", icon: "text" },
"sep2": "---------",
"blackPen": { name: "Black Pen", icon: "blackpen" },
"redPen": { name: "Red Pen", icon: "redpen" },
"greenPen": { name: "Green Pen", icon: "greenpen" },
"bluePen": { name: "Blue Pen", icon: "bluepen" },
"yellowPen": { name: "Yellow Pen", icon: "yellowpen" },
}
});
let $menuList = $(".context-menu-list");
$menuList.find(".context-menu-icon-text")
.css({
"background-image": "url(/static/plugins/visualizations/annotate_image/static/images/text.png)",
"background-repeat": "no-repeat",
"background-position": "right 96% bottom 45%"
});
$menuList.find(".context-menu-icon-blackpen")
.css({
"background-image": "url(/static/plugins/visualizations/annotate_image/static/images/blackpen.png)",
"background-repeat": "no-repeat",
"background-position": "right 97% bottom 48%"
});
$menuList.find(".context-menu-icon-redpen")
.css({
"background-image": "url(/static/plugins/visualizations/annotate_image/static/images/redpen.png)",
"background-repeat": "no-repeat",
"background-position": "right 97% bottom 48%"
});
$menuList.find(".context-menu-icon-greenpen")
.css({
"background-image": "url(/static/plugins/visualizations/annotate_image/static/images/greenpen.png)",
"background-repeat": "no-repeat",
"background-position": "right 97% bottom 48%"
});
$menuList.find(".context-menu-icon-bluepen")
.css({
"background-image": "url(/static/plugins/visualizations/annotate_image/static/images/bluepen.png)",
"background-repeat": "no-repeat",
"background-position": "right 97% bottom 48%"
});
$menuList.find(".context-menu-icon-yellowpen")
.css({
"background-image": "url(/static/plugins/visualizations/annotate_image/static/images/yellowpen.png)",
"background-repeat": "no-repeat",
"background-position": "right 97% bottom 48%"
});
}
$.ajax({
url: dataset.download_url,
success: function(content) {
let $chartViewer = $("#" + opt.targets[0]);
$chartViewer.html("<img id='image-annotate' src='" + dataset.download_url + "' />");
$chartViewer.css("overflow", "auto");
$chartViewer.css("position", "relative");
let $image = $chartViewer.find("img");
$image.on("load", function() {
let width = $(this).width();
let height = $(this).height();
$image.width(width);
$image.height(height);
$image.createCanvas({
color: "red",
width: 2,
opacity: 0.5,
img_width: width,
img_height: height
});
});
chart.state("ok", "Chart drawn.");
opt.process.resolve();
},
error: function() {
chart.state("failed", "Failed to access dataset.");
opt.process.resolve();
}
});
}
});