%PDF-
%PDF-
Mini Shell
Mini Shell
/*globals svgEditor, svgCanvas, $*/
/*jslint vars: true, eqeq: true*/
/*
* ext-arrows.js
*
* Licensed under the MIT License
*
* Copyright(c) 2010 Alexis Deveria
*
*/
svgEditor.addExtension('Arrows', function(S) {
var svgcontent = S.svgcontent,
addElem = S.addSvgElementFromJson,
nonce = S.nonce,
randomize_ids = S.randomize_ids,
selElems, pathdata,
lang_list = {
'en':[
{'id': 'arrow_none', 'textContent': 'No arrow' }
],
'fr':[
{'id': 'arrow_none', 'textContent': 'Sans flèche' }
]
},
arrowprefix,
prefix = 'se_arrow_';
function setArrowNonce(window, n) {
randomize_ids = true;
arrowprefix = prefix + n + '_';
pathdata.fw.id = arrowprefix + 'fw';
pathdata.bk.id = arrowprefix + 'bk';
}
function unsetArrowNonce(window) {
randomize_ids = false;
arrowprefix = prefix;
pathdata.fw.id = arrowprefix + 'fw';
pathdata.bk.id = arrowprefix + 'bk';
}
svgCanvas.bind('setnonce', setArrowNonce);
svgCanvas.bind('unsetnonce', unsetArrowNonce);
if (randomize_ids) {
arrowprefix = prefix + nonce + '_';
} else {
arrowprefix = prefix;
}
pathdata = {
fw: {d: 'm0,0l10,5l-10,5l5,-5l-5,-5z', refx: 8, id: arrowprefix + 'fw'},
bk: {d: 'm10,0l-10,5l10,5l-5,-5l5,-5z', refx: 2, id: arrowprefix + 'bk'}
};
function getLinked(elem, attr) {
var str = elem.getAttribute(attr);
if(!str) {return null;}
var m = str.match(/\(\#(.*)\)/);
if(!m || m.length !== 2) {
return null;
}
return S.getElem(m[1]);
}
function showPanel(on) {
$('#arrow_panel').toggle(on);
if(on) {
var el = selElems[0];
var end = el.getAttribute('marker-end');
var start = el.getAttribute('marker-start');
var mid = el.getAttribute('marker-mid');
var val;
if (end && start) {
val = 'both';
} else if (end) {
val = 'end';
} else if (start) {
val = 'start';
} else if (mid) {
val = 'mid';
if (mid.indexOf('bk') !== -1) {
val = 'mid_bk';
}
}
if (!start && !mid && !end) {
val = 'none';
}
$('#arrow_list').val(val);
}
}
function resetMarker() {
var el = selElems[0];
el.removeAttribute('marker-start');
el.removeAttribute('marker-mid');
el.removeAttribute('marker-end');
}
function addMarker(dir, type, id) {
// TODO: Make marker (or use?) per arrow type, since refX can be different
id = id || arrowprefix + dir;
var marker = S.getElem(id);
var data = pathdata[dir];
if (type == 'mid') {
data.refx = 5;
}
if (!marker) {
marker = addElem({
'element': 'marker',
'attr': {
'viewBox': '0 0 10 10',
'id': id,
'refY': 5,
'markerUnits': 'strokeWidth',
'markerWidth': 5,
'markerHeight': 5,
'orient': 'auto',
'style': 'pointer-events:none' // Currently needed for Opera
}
});
var arrow = addElem({
'element': 'path',
'attr': {
'd': data.d,
'fill': '#000000'
}
});
marker.appendChild(arrow);
S.findDefs().appendChild(marker);
}
marker.setAttribute('refX', data.refx);
return marker;
}
function setArrow() {
var type = this.value;
resetMarker();
if (type == 'none') {
return;
}
// Set marker on element
var dir = 'fw';
if (type == 'mid_bk') {
type = 'mid';
dir = 'bk';
} else if (type == 'both') {
addMarker('bk', type);
svgCanvas.changeSelectedAttribute('marker-start', 'url(#' + pathdata.bk.id + ')');
type = 'end';
dir = 'fw';
} else if (type == 'start') {
dir = 'bk';
}
addMarker(dir, type);
svgCanvas.changeSelectedAttribute('marker-' + type, 'url(#' + pathdata[dir].id + ')');
S.call('changed', selElems);
}
function colorChanged(elem) {
var color = elem.getAttribute('stroke');
var mtypes = ['start', 'mid', 'end'];
var defs = S.findDefs();
$.each(mtypes, function(i, type) {
var marker = getLinked(elem, 'marker-'+type);
if(!marker) {return;}
var cur_color = $(marker).children().attr('fill');
var cur_d = $(marker).children().attr('d');
var new_marker = null;
if(cur_color === color) {return;}
var all_markers = $(defs).find('marker');
// Different color, check if already made
all_markers.each(function() {
var attrs = $(this).children().attr(['fill', 'd']);
if(attrs.fill === color && attrs.d === cur_d) {
// Found another marker with this color and this path
new_marker = this;
}
});
if(!new_marker) {
// Create a new marker with this color
var last_id = marker.id;
var dir = last_id.indexOf('_fw') !== -1?'fw':'bk';
new_marker = addMarker(dir, type, arrowprefix + dir + all_markers.length);
$(new_marker).children().attr('fill', color);
}
$(elem).attr('marker-'+type, 'url(#' + new_marker.id + ')');
// Check if last marker can be removed
var remove = true;
$(S.svgcontent).find('line, polyline, path, polygon').each(function() {
var elem = this;
$.each(mtypes, function(j, mtype) {
if($(elem).attr('marker-' + mtype) === 'url(#' + marker.id + ')') {
remove = false;
return remove;
}
});
if(!remove) {return false;}
});
// Not found, so can safely remove
if(remove) {
$(marker).remove();
}
});
}
return {
name: 'Arrows',
context_tools: [{
type: 'select',
panel: 'arrow_panel',
title: 'Select arrow type',
id: 'arrow_list',
options: {
none: 'No arrow',
end: '---->',
start: '<----',
both: '<--->',
mid: '-->--',
mid_bk: '--<--'
},
defval: 'none',
events: {
change: setArrow
}
}],
callback: function() {
$('#arrow_panel').hide();
// Set ID so it can be translated in locale file
$('#arrow_list option')[0].id = 'connector_no_arrow';
},
addLangData: function(lang) {
return {
data: lang_list[lang]
};
},
selectedChanged: function(opts) {
// Use this to update the current selected elements
selElems = opts.elems;
var i = selElems.length;
var marker_elems = ['line', 'path', 'polyline', 'polygon'];
while(i--) {
var elem = selElems[i];
if(elem && $.inArray(elem.tagName, marker_elems) !== -1) {
if(opts.selectedElement && !opts.multiselected) {
showPanel(true);
} else {
showPanel(false);
}
} else {
showPanel(false);
}
}
},
elementChanged: function(opts) {
var elem = opts.elems[0];
if(elem && (
elem.getAttribute('marker-start') ||
elem.getAttribute('marker-mid') ||
elem.getAttribute('marker-end')
)) {
// var start = elem.getAttribute('marker-start');
// var mid = elem.getAttribute('marker-mid');
// var end = elem.getAttribute('marker-end');
// Has marker, so see if it should match color
colorChanged(elem);
}
}
};
});
Zerion Mini Shell 1.0