svgui/livesvg.js
author Edouard Tisserant
Fri, 28 Feb 2020 16:09:21 +0100
branchsvghmi
changeset 2844 eee5dcd9fc92
parent 728 e0424e96e3fd
permissions -rw-r--r--
SVGHMI: detachable and discardable elements sets, Reworked geometric intersection, toward more accurate page content detection.

Moved page's widget/element dependency crawling functions so that it is possible to compute a global detachable and discardable elements sets.
Reworked geometric intersection detection logic to distinguish ovelapping and inclusion.
Goal is to include englobing and overlapping graphical elements, but not groups (would then include everything around...). Intermediate commit, to be continued.
// import Nevow.Athena
// import Divmod.Base

function updateAttr(id, param, value) {
  Nevow.Athena.Widget.fromAthenaID(1).callRemote('HMIexec', 'setattr', id, param, value);
}

var svguiWidgets = new Array();

var currentObject = null;
function setCurrentObject(obj) {
	currentObject = obj;
}
function isCurrentObject(obj) {
	return currentObject == obj;
}

function getSVGElementById(id) {
	return document.getElementById(id);
}

function blockSVGElementDrag(element) {
	element.addEventListener("draggesture", function(event){event.stopPropagation()}, true);
}

LiveSVGPage.LiveSVGWidget = Nevow.Athena.Widget.subclass('LiveSVGPage.LiveSVGWidget');
LiveSVGPage.LiveSVGWidget.methods(

    function handleEvent(self, evt) {
        if (currentObject != null) {
            currentObject.handleEvent(evt);
        }
    },

    function receiveData(self, data){
        dataReceived = json_parse(data);
        gadget = svguiWidgets[dataReceived.id]
        if (gadget) {
        	gadget.updateValues(json_parse(dataReceived.kwargs));
        }
        //console.log("OBJET : " + dataReceived.back_id + " STATE : " + newState);
    },
    
    function init(self, arg1){
        //console.log("Object received : " + arg1);
        for (ind in arg1) {
            gad = json_parse(arg1[ind]);
            args = json_parse(gad.kwargs);
            gadget = new svguilib[gad.__class__](self, gad.id, args);
            svguiWidgets[gadget.id]=gadget;
            //console.log('GADGET :' + gadget);
        }
        var elements = document.getElementsByTagName("svg");
        for (var i = 0; i < elements.length; i++) {
        	elements[i].addEventListener("mouseup", self, false);
        }
        //console.log("SVGUIWIDGETS : " + svguiWidgets);
    }
);