Started on Issue 310: Move to Plugin Architecture, as well as Issue 200: flowchart (just connector lines for now)
git-svn-id: http://svg-edit.googlecode.com/svn/trunk@1277 eee81c28-f429-11dd-99c0-75d572ba1ddd
This commit is contained in:
Alexis Deveria
243
editor/ext-connector.js
Normal file
243
editor/ext-connector.js
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@@ -0,0 +1,243 @@
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$(function() {
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svgCanvas.addExtension("Connector", function(vars) {
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var svgcontent = vars.content;
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var getNextId = vars.getNextId;
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var addElem = vars.addSvgElementFromJson;
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var selManager = vars.selectorManager;
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var started = false,
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start_x,
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start_y,
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cur_line,
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start_elem,
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end_elem,
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connections = [],
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conn_class = "se_connect",
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connect_str = "-SE_CONNECT-",
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selElems;
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// Init code
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// (function() {
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//
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//
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// }());
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return {
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name: "Connector",
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svgicons: "images/conn.svg",
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buttons: [{
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id: "mode_connect",
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type: "mode",
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icon: "images/cut.png",
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events: {
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'click': function() {
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svgCanvas.setMode("connector");
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}
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}
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}],
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mouseDown: function(opts) {
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var e = opts.event;
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start_x = opts.start_x,
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start_y = opts.start_y;
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var mode = svgCanvas.getMode();
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if(mode == "connector") {
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if(started) return;
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if(e.target.parentNode.parentNode == svgcontent) {
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// Connectable element
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start_elem = e.target;
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// Get center of source element
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var bb = svgCanvas.getStrokedBBox([start_elem]);
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var x = bb.x + bb.width/2;
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var y = bb.y + bb.height/2;
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started = true;
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cur_line = addElem({
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"element": "line",
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"attr": {
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"x1": x,
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"y1": y,
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"x2": start_x,
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"y2": start_y,
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"id": getNextId(),
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"stroke": '#000',
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"stroke-width": 1,
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"fill": "none",
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"opacity": .5,
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"style": "pointer-events:none"
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}
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});
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}
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return {
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started: true
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};
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} else if(mode == "select") {
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// Check if selected elements have connections
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var elems = opts.selectedElements;
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var i = elems.length;
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var connectors = $(svgcontent).find("." + conn_class);
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if(!connectors.length) return;
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connections = [];
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while(i--) {
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var elem = elems[i];
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if(!elem) continue;
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if(elem.getAttribute('class') == conn_class) continue;
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var elem_id = elem.id;
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connectors.each(function() {
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var con_id = this.id;
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if(con_id.indexOf(elem_id) != -1) {
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var is_start = true;
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if(con_id.indexOf(connect_str + elem_id) != -1) {
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// Found connector (selected is end elem)
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is_start = false;
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}
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var bb = svgCanvas.getStrokedBBox([elem]);
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var x = bb.x + bb.width/2;
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var y = bb.y + bb.height/2;
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connections.push({
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elem: elem,
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connector: this,
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is_start: is_start,
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start_x: x,
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start_y: y
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});
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}
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});
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}
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}
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},
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mouseMove: function(opts) {
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var zoom = svgCanvas.getZoom();
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var e = opts.event;
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var x = opts.mouse_x/zoom;
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var y = opts.mouse_y/zoom;
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var diff_x = x - start_x,
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diff_y = y - start_y;
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var mode = svgCanvas.getMode();
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if(mode == "connector" && started) {
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cur_line.setAttributeNS(null, "x2", x);
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cur_line.setAttributeNS(null, "y2", y);
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} else if(mode == "select") {
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var slen = selElems.length;
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while(slen--) {
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var elem = selElems[slen];
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// Look for selected connector elements
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if(elem && elem.getAttribute('class') == conn_class) {
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// Remove the "translate" transform given to move
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svgCanvas.getTransformList(elem).clear();
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}
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}
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if(connections.length) {
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// Update line with element
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var i = connections.length;
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while(i--) {
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var conn = connections[i];
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var line = conn.connector;
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var elem = conn.elem;
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var n = conn.is_start ? 1 : 2;
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line.setAttributeNS(null, "x"+n, conn.start_x + diff_x);
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line.setAttributeNS(null, "y"+n, conn.start_y + diff_y);
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}
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}
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}
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},
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mouseUp: function(opts) {
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var zoom = svgCanvas.getZoom();
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var e = opts.event,
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x = opts.mouse_x/zoom,
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y = opts.mouse_y/zoom;
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if(svgCanvas.getMode() == "connector") {
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if(e.target.parentNode.parentNode != svgcontent) {
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// Not a valid target element, so remove line
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$(cur_line).remove();
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started = false;
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return {
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keep: false,
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element: null,
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started: started
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}
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} else if(e.target == start_elem) {
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// Start line through click
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started = true;
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return {
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keep: true,
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element: null,
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started: started
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}
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} else {
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// Valid end element
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end_elem = e.target;
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var line_id = start_elem.id + connect_str + end_elem.id;
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var alt_line_id = end_elem.id + connect_str + start_elem.id;
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// Don't create connector if one already exists
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if($('#'+line_id + ', #' + alt_line_id).length) {
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$(cur_line).remove();
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return {
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keep: false,
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element: null,
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started: false
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}
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}
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var bb = svgCanvas.getStrokedBBox([end_elem]);
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var x = bb.x + bb.width/2;
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var y = bb.y + bb.height/2;
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cur_line.setAttributeNS(null, "x2", x);
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cur_line.setAttributeNS(null, "y2", y);
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cur_line.id = line_id;
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console.log('cur_line',cur_line.id);
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cur_line.setAttribute("class", conn_class);
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svgCanvas.addToSelection([cur_line]);
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svgCanvas.moveToBottomSelectedElement();
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started = false;
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return {
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keep: true,
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element: cur_line,
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started: started
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}
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}
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}
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},
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selectedChanged: function(opts) {
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// Use this to update the current selected elements
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selElems = opts.elems;
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var i = selElems.length;
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// var to_hide = $('#tool_clone, #tool_topath, div.toolset:has(#angle), #line_panel');
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while(i--) {
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var elem = selElems[i];
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if(elem && elem.getAttribute('class') == conn_class) {
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selManager.requestSelector(elem).showGrips(false);
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if(opts.selectedElement && !opts.multiselected) {
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// TODO: Set up context tools and hide most regular line tools
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}
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}
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}
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}
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};
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});
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});
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