You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
593 lines
16 KiB
593 lines
16 KiB
/*globals svgEditor, svgCanvas, $*/ |
|
/*jslint vars: true, continue: true, eqeq: true, todo: true*/ |
|
/* |
|
* ext-connector.js |
|
* |
|
* Licensed under the MIT License |
|
* |
|
* Copyright(c) 2010 Alexis Deveria |
|
* |
|
*/ |
|
|
|
svgEditor.addExtension("Connector", function(S) { |
|
var svgcontent = S.svgcontent, |
|
svgroot = S.svgroot, |
|
getNextId = S.getNextId, |
|
getElem = S.getElem, |
|
addElem = S.addSvgElementFromJson, |
|
selManager = S.selectorManager, |
|
curConfig = svgEditor.curConfig, |
|
started = false, |
|
start_x, |
|
start_y, |
|
cur_line, |
|
start_elem, |
|
end_elem, |
|
connections = [], |
|
conn_sel = ".se_connector", |
|
se_ns, |
|
// connect_str = "-SE_CONNECT-", |
|
selElems = [], |
|
elData = $.data; |
|
|
|
var lang_list = { |
|
"en":[ |
|
{"id": "mode_connect", "title": "Connect two objects" } |
|
], |
|
"fr":[ |
|
{"id": "mode_connect", "title": "Connecter deux objets"} |
|
] |
|
}; |
|
|
|
function getBBintersect(x, y, bb, offset) { |
|
if(offset) { |
|
offset -= 0; |
|
bb = $.extend({}, bb); |
|
bb.width += offset; |
|
bb.height += offset; |
|
bb.x -= offset/2; |
|
bb.y -= offset/2; |
|
} |
|
|
|
var mid_x = bb.x + bb.width/2; |
|
var mid_y = bb.y + bb.height/2; |
|
var len_x = x - mid_x; |
|
var len_y = y - mid_y; |
|
|
|
var slope = Math.abs(len_y/len_x); |
|
|
|
var ratio; |
|
|
|
if(slope < bb.height/bb.width) { |
|
ratio = (bb.width/2) / Math.abs(len_x); |
|
} else { |
|
ratio = (bb.height/2) / Math.abs(len_y); |
|
} |
|
|
|
|
|
return { |
|
x: mid_x + len_x * ratio, |
|
y: mid_y + len_y * ratio |
|
}; |
|
} |
|
|
|
function getOffset(side, line) { |
|
var give_offset = !!line.getAttribute('marker-' + side); |
|
// var give_offset = $(line).data(side+'_off'); |
|
|
|
// TODO: Make this number (5) be based on marker width/height |
|
var size = line.getAttribute('stroke-width') * 5; |
|
return give_offset ? size : 0; |
|
} |
|
|
|
function showPanel(on) { |
|
var conn_rules = $('#connector_rules'); |
|
if(!conn_rules.length) { |
|
conn_rules = $('<style id="connector_rules"><\/style>').appendTo('head'); |
|
} |
|
conn_rules.text(!on?"":"#tool_clone, #tool_topath, #tool_angle, #xy_panel { display: none !important; }"); |
|
$('#connector_panel').toggle(on); |
|
} |
|
|
|
function setPoint(elem, pos, x, y, setMid) { |
|
var i, pts = elem.points; |
|
var pt = svgroot.createSVGPoint(); |
|
pt.x = x; |
|
pt.y = y; |
|
if (pos === 'end') {pos = pts.numberOfItems - 1;} |
|
// TODO: Test for this on init, then use alt only if needed |
|
try { |
|
pts.replaceItem(pt, pos); |
|
} catch(err) { |
|
// Should only occur in FF which formats points attr as "n,n n,n", so just split |
|
var pt_arr = elem.getAttribute("points").split(" "); |
|
for (i = 0; i < pt_arr.length; i++) { |
|
if (i === pos) { |
|
pt_arr[i] = x + ',' + y; |
|
} |
|
} |
|
elem.setAttribute("points",pt_arr.join(" ")); |
|
} |
|
|
|
if(setMid) { |
|
// Add center point |
|
var pt_start = pts.getItem(0); |
|
var pt_end = pts.getItem(pts.numberOfItems-1); |
|
setPoint(elem, 1, (pt_end.x + pt_start.x)/2, (pt_end.y + pt_start.y)/2); |
|
} |
|
} |
|
|
|
function updateLine(diff_x, diff_y) { |
|
// Update line with element |
|
var i = connections.length; |
|
while(i--) { |
|
var conn = connections[i]; |
|
var line = conn.connector; |
|
var elem = conn.elem; |
|
|
|
var pre = conn.is_start?'start':'end'; |
|
// var sw = line.getAttribute('stroke-width') * 5; |
|
|
|
// Update bbox for this element |
|
var bb = elData(line, pre+'_bb'); |
|
bb.x = conn.start_x + diff_x; |
|
bb.y = conn.start_y + diff_y; |
|
elData(line, pre+'_bb', bb); |
|
|
|
var alt_pre = conn.is_start?'end':'start'; |
|
|
|
// Get center pt of connected element |
|
var bb2 = elData(line, alt_pre+'_bb'); |
|
var src_x = bb2.x + bb2.width/2; |
|
var src_y = bb2.y + bb2.height/2; |
|
|
|
// Set point of element being moved |
|
var pt = getBBintersect(src_x, src_y, bb, getOffset(pre, line)); // $(line).data(pre+'_off')?sw:0 |
|
setPoint(line, conn.is_start ? 0 : 'end', pt.x, pt.y, true); |
|
|
|
// Set point of connected element |
|
var pt2 = getBBintersect(pt.x, pt.y, elData(line, alt_pre + '_bb'), getOffset(alt_pre, line)); |
|
setPoint(line, conn.is_start ? 'end' : 0, pt2.x, pt2.y, true); |
|
|
|
} |
|
} |
|
|
|
function findConnectors(elems) { |
|
var i; |
|
if (!elems) {elems = selElems;} |
|
var connectors = $(svgcontent).find(conn_sel); |
|
connections = []; |
|
|
|
// Loop through connectors to see if one is connected to the element |
|
connectors.each(function() { |
|
var add_this; |
|
function add () { |
|
if ($.inArray(this, elems) !== -1) { |
|
// Pretend this element is selected |
|
add_this = true; |
|
} |
|
} |
|
var start = elData(this, "c_start"); |
|
var end = elData(this, "c_end"); |
|
|
|
var parts = [getElem(start), getElem(end)]; |
|
for (i = 0; i < 2; i++) { |
|
var c_elem = parts[i]; |
|
add_this = false; |
|
// The connected element might be part of a selected group |
|
$(c_elem).parents().each(add); |
|
|
|
if(!c_elem || !c_elem.parentNode) { |
|
$(this).remove(); |
|
continue; |
|
} |
|
if($.inArray(c_elem, elems) !== -1 || add_this) { |
|
var bb = svgCanvas.getStrokedBBox([c_elem]); |
|
connections.push({ |
|
elem: c_elem, |
|
connector: this, |
|
is_start: (i === 0), |
|
start_x: bb.x, |
|
start_y: bb.y |
|
}); |
|
} |
|
} |
|
}); |
|
} |
|
|
|
function updateConnectors(elems) { |
|
// Updates connector lines based on selected elements |
|
// Is not used on mousemove, as it runs getStrokedBBox every time, |
|
// which isn't necessary there. |
|
var i, j; |
|
findConnectors(elems); |
|
if (connections.length) { |
|
// Update line with element |
|
i = connections.length; |
|
while (i--) { |
|
var conn = connections[i]; |
|
var line = conn.connector; |
|
var elem = conn.elem; |
|
|
|
var sw = line.getAttribute('stroke-width') * 5; |
|
var pre = conn.is_start?'start':'end'; |
|
|
|
// Update bbox for this element |
|
var bb = svgCanvas.getStrokedBBox([elem]); |
|
bb.x = conn.start_x; |
|
bb.y = conn.start_y; |
|
elData(line, pre+'_bb', bb); |
|
var add_offset = elData(line, pre+'_off'); |
|
|
|
var alt_pre = conn.is_start?'end':'start'; |
|
|
|
// Get center pt of connected element |
|
var bb2 = elData(line, alt_pre+'_bb'); |
|
var src_x = bb2.x + bb2.width/2; |
|
var src_y = bb2.y + bb2.height/2; |
|
|
|
// Set point of element being moved |
|
var pt = getBBintersect(src_x, src_y, bb, getOffset(pre, line)); |
|
setPoint(line, conn.is_start ? 0 : 'end', pt.x, pt.y, true); |
|
|
|
// Set point of connected element |
|
var pt2 = getBBintersect(pt.x, pt.y, elData(line, alt_pre + '_bb'), getOffset(alt_pre, line)); |
|
setPoint(line, conn.is_start ? 'end' : 0, pt2.x, pt2.y, true); |
|
|
|
// Update points attribute manually for webkit |
|
if (navigator.userAgent.indexOf('AppleWebKit') !== -1) { |
|
var pts = line.points; |
|
var len = pts.numberOfItems; |
|
var pt_arr = []; |
|
for (j = 0; j < len; j++) { |
|
pt = pts.getItem(j); |
|
pt_arr[j] = pt.x + ',' + pt.y; |
|
} |
|
line.setAttribute('points', pt_arr.join(' ')); |
|
} |
|
} |
|
} |
|
} |
|
|
|
// Do once |
|
(function() { |
|
var gse = svgCanvas.groupSelectedElements; |
|
|
|
svgCanvas.groupSelectedElements = function() { |
|
svgCanvas.removeFromSelection($(conn_sel).toArray()); |
|
return gse.apply(this, arguments); |
|
}; |
|
|
|
var mse = svgCanvas.moveSelectedElements; |
|
|
|
svgCanvas.moveSelectedElements = function() { |
|
svgCanvas.removeFromSelection($(conn_sel).toArray()); |
|
var cmd = mse.apply(this, arguments); |
|
updateConnectors(); |
|
return cmd; |
|
}; |
|
|
|
se_ns = svgCanvas.getEditorNS(); |
|
}()); |
|
|
|
// Do on reset |
|
function init() { |
|
// Make sure all connectors have data set |
|
$(svgcontent).find('*').each(function() { |
|
var conn = this.getAttributeNS(se_ns, "connector"); |
|
if(conn) { |
|
this.setAttribute('class', conn_sel.substr(1)); |
|
var conn_data = conn.split(' '); |
|
var sbb = svgCanvas.getStrokedBBox([getElem(conn_data[0])]); |
|
var ebb = svgCanvas.getStrokedBBox([getElem(conn_data[1])]); |
|
$(this).data('c_start',conn_data[0]) |
|
.data('c_end',conn_data[1]) |
|
.data('start_bb', sbb) |
|
.data('end_bb', ebb); |
|
svgCanvas.getEditorNS(true); |
|
} |
|
}); |
|
// updateConnectors(); |
|
} |
|
|
|
// $(svgroot).parent().mousemove(function(e) { |
|
// // if(started |
|
// // || svgCanvas.getMode() != "connector" |
|
// // || e.target.parentNode.parentNode != svgcontent) return; |
|
// |
|
// console.log('y') |
|
// // if(e.target.parentNode.parentNode === svgcontent) { |
|
// // |
|
// // } |
|
// }); |
|
|
|
return { |
|
name: "Connector", |
|
svgicons: svgEditor.curConfig.imgPath + "conn.svg", |
|
buttons: [{ |
|
id: "mode_connect", |
|
type: "mode", |
|
icon: svgEditor.curConfig.imgPath + "cut.png", |
|
title: "Connect two objects", |
|
includeWith: { |
|
button: '#tool_line', |
|
isDefault: false, |
|
position: 1 |
|
}, |
|
events: { |
|
'click': function() { |
|
svgCanvas.setMode("connector"); |
|
} |
|
} |
|
}], |
|
addLangData: function(lang) { |
|
return { |
|
data: lang_list[lang] |
|
}; |
|
}, |
|
mouseDown: function(opts) { |
|
var e = opts.event; |
|
start_x = opts.start_x; |
|
start_y = opts.start_y; |
|
var mode = svgCanvas.getMode(); |
|
|
|
if (mode == "connector") { |
|
|
|
if (started) {return;} |
|
|
|
var mouse_target = e.target; |
|
|
|
var parents = $(mouse_target).parents(); |
|
|
|
if($.inArray(svgcontent, parents) !== -1) { |
|
// Connectable element |
|
|
|
// If child of foreignObject, use parent |
|
var fo = $(mouse_target).closest("foreignObject"); |
|
start_elem = fo.length ? fo[0] : mouse_target; |
|
|
|
// Get center of source element |
|
var bb = svgCanvas.getStrokedBBox([start_elem]); |
|
var x = bb.x + bb.width/2; |
|
var y = bb.y + bb.height/2; |
|
|
|
started = true; |
|
cur_line = addElem({ |
|
"element": "polyline", |
|
"attr": { |
|
"id": getNextId(), |
|
"points": (x+','+y+' '+x+','+y+' '+start_x+','+start_y), |
|
"stroke": '#' + curConfig.initStroke.color, |
|
"stroke-width": (!start_elem.stroke_width || start_elem.stroke_width == 0) ? curConfig.initStroke.width : start_elem.stroke_width, |
|
"fill": "none", |
|
"opacity": curConfig.initStroke.opacity, |
|
"style": "pointer-events:none" |
|
} |
|
}); |
|
elData(cur_line, 'start_bb', bb); |
|
} |
|
return { |
|
started: true |
|
}; |
|
} |
|
if (mode == "select") { |
|
findConnectors(); |
|
} |
|
}, |
|
mouseMove: function(opts) { |
|
var zoom = svgCanvas.getZoom(); |
|
var e = opts.event; |
|
var x = opts.mouse_x/zoom; |
|
var y = opts.mouse_y/zoom; |
|
|
|
var diff_x = x - start_x, |
|
diff_y = y - start_y; |
|
|
|
var mode = svgCanvas.getMode(); |
|
|
|
if (mode == "connector" && started) { |
|
|
|
var sw = cur_line.getAttribute('stroke-width') * 3; |
|
// Set start point (adjusts based on bb) |
|
var pt = getBBintersect(x, y, elData(cur_line, 'start_bb'), getOffset('start', cur_line)); |
|
start_x = pt.x; |
|
start_y = pt.y; |
|
|
|
setPoint(cur_line, 0, pt.x, pt.y, true); |
|
|
|
// Set end point |
|
setPoint(cur_line, 'end', x, y, true); |
|
} else if (mode == "select") { |
|
var slen = selElems.length; |
|
|
|
while(slen--) { |
|
var elem = selElems[slen]; |
|
// Look for selected connector elements |
|
if(elem && elData(elem, 'c_start')) { |
|
// Remove the "translate" transform given to move |
|
svgCanvas.removeFromSelection([elem]); |
|
svgCanvas.getTransformList(elem).clear(); |
|
|
|
} |
|
} |
|
if(connections.length) { |
|
updateLine(diff_x, diff_y); |
|
|
|
|
|
} |
|
} |
|
}, |
|
mouseUp: function(opts) { |
|
var zoom = svgCanvas.getZoom(); |
|
var e = opts.event, |
|
x = opts.mouse_x/zoom, |
|
y = opts.mouse_y/zoom, |
|
mouse_target = e.target; |
|
|
|
if(svgCanvas.getMode() == "connector") { |
|
var fo = $(mouse_target).closest("foreignObject"); |
|
if (fo.length) {mouse_target = fo[0];} |
|
|
|
var parents = $(mouse_target).parents(); |
|
|
|
if (mouse_target == start_elem) { |
|
// Start line through click |
|
started = true; |
|
return { |
|
keep: true, |
|
element: null, |
|
started: started |
|
}; |
|
} |
|
if ($.inArray(svgcontent, parents) === -1) { |
|
// Not a valid target element, so remove line |
|
$(cur_line).remove(); |
|
started = false; |
|
return { |
|
keep: false, |
|
element: null, |
|
started: started |
|
}; |
|
} |
|
// Valid end element |
|
end_elem = mouse_target; |
|
|
|
var start_id = start_elem.id, end_id = end_elem.id; |
|
var conn_str = start_id + " " + end_id; |
|
var alt_str = end_id + " " + start_id; |
|
// Don't create connector if one already exists |
|
var dupe = $(svgcontent).find(conn_sel).filter(function() { |
|
var conn = this.getAttributeNS(se_ns, "connector"); |
|
if (conn == conn_str || conn == alt_str) {return true;} |
|
}); |
|
if(dupe.length) { |
|
$(cur_line).remove(); |
|
return { |
|
keep: false, |
|
element: null, |
|
started: false |
|
}; |
|
} |
|
|
|
var bb = svgCanvas.getStrokedBBox([end_elem]); |
|
|
|
var pt = getBBintersect(start_x, start_y, bb, getOffset('start', cur_line)); |
|
setPoint(cur_line, 'end', pt.x, pt.y, true); |
|
$(cur_line) |
|
.data("c_start", start_id) |
|
.data("c_end", end_id) |
|
.data("end_bb", bb); |
|
se_ns = svgCanvas.getEditorNS(true); |
|
cur_line.setAttributeNS(se_ns, "se:connector", conn_str); |
|
cur_line.setAttribute('class', conn_sel.substr(1)); |
|
cur_line.setAttribute('opacity', 1); |
|
svgCanvas.addToSelection([cur_line]); |
|
svgCanvas.moveToBottomSelectedElement(); |
|
selManager.requestSelector(cur_line).showGrips(false); |
|
started = false; |
|
return { |
|
keep: true, |
|
element: cur_line, |
|
started: started |
|
}; |
|
} |
|
}, |
|
selectedChanged: function(opts) { |
|
// TODO: Find better way to skip operations if no connectors are in use |
|
if(!$(svgcontent).find(conn_sel).length) {return;} |
|
|
|
if(svgCanvas.getMode() == 'connector') { |
|
svgCanvas.setMode('select'); |
|
} |
|
|
|
// Use this to update the current selected elements |
|
selElems = opts.elems; |
|
|
|
var i = selElems.length; |
|
|
|
while(i--) { |
|
var elem = selElems[i]; |
|
if(elem && elData(elem, 'c_start')) { |
|
selManager.requestSelector(elem).showGrips(false); |
|
if(opts.selectedElement && !opts.multiselected) { |
|
// TODO: Set up context tools and hide most regular line tools |
|
showPanel(true); |
|
} else { |
|
showPanel(false); |
|
} |
|
} else { |
|
showPanel(false); |
|
} |
|
} |
|
updateConnectors(); |
|
}, |
|
elementChanged: function(opts) { |
|
var elem = opts.elems[0]; |
|
if (elem && elem.tagName === 'svg' && elem.id === 'svgcontent') { |
|
// Update svgcontent (can change on import) |
|
svgcontent = elem; |
|
init(); |
|
} |
|
|
|
// Has marker, so change offset |
|
var start; |
|
if (elem && ( |
|
elem.getAttribute("marker-start") || |
|
elem.getAttribute("marker-mid") || |
|
elem.getAttribute("marker-end") |
|
)) { |
|
start = elem.getAttribute("marker-start"); |
|
var mid = elem.getAttribute("marker-mid"); |
|
var end = elem.getAttribute("marker-end"); |
|
cur_line = elem; |
|
$(elem) |
|
.data("start_off", !!start) |
|
.data("end_off", !!end); |
|
|
|
if (elem.tagName === 'line' && mid) { |
|
// Convert to polyline to accept mid-arrow |
|
|
|
var x1 = Number(elem.getAttribute('x1')); |
|
var x2 = Number(elem.getAttribute('x2')); |
|
var y1 = Number(elem.getAttribute('y1')); |
|
var y2 = Number(elem.getAttribute('y2')); |
|
var id = elem.id; |
|
|
|
var mid_pt = (' '+((x1+x2)/2)+','+((y1+y2)/2) + ' '); |
|
var pline = addElem({ |
|
"element": "polyline", |
|
"attr": { |
|
"points": (x1+','+y1+ mid_pt +x2+','+y2), |
|
"stroke": elem.getAttribute('stroke'), |
|
"stroke-width": elem.getAttribute('stroke-width'), |
|
"marker-mid": mid, |
|
"fill": "none", |
|
"opacity": elem.getAttribute('opacity') || 1 |
|
} |
|
}); |
|
$(elem).after(pline).remove(); |
|
svgCanvas.clearSelection(); |
|
pline.id = id; |
|
svgCanvas.addToSelection([pline]); |
|
elem = pline; |
|
} |
|
} |
|
// Update line if it's a connector |
|
if (elem.getAttribute('class') == conn_sel.substr(1)) { |
|
start = getElem(elData(elem, 'c_start')); |
|
updateConnectors([start]); |
|
} else { |
|
updateConnectors(); |
|
} |
|
}, |
|
toolButtonStateUpdate: function(opts) { |
|
if (opts.nostroke) { |
|
if ($('#mode_connect').hasClass('tool_button_current')) { |
|
svgEditor.clickSelect(); |
|
} |
|
} |
|
$('#mode_connect') |
|
.toggleClass('disabled',opts.nostroke); |
|
} |
|
}; |
|
});
|
|
|