Files
iTop/js/simple_graph.js

444 lines
14 KiB
JavaScript

// jQuery UI style "widget" for displaying a graph
////////////////////////////////////////////////////////////////////////////////
//
// graph
//
$(function()
{
// the widget definition, where "itop" is the namespace,
// "dashboard" the widget name
$.widget( "itop.simple_graph",
{
// default options
options:
{
xmin: 0,
xmax: 0,
ymin: 0,
ymax: 0,
align: 'center',
'vertical-align': 'middle',
export_as_pdf_url: '',
export_as_document_url: '',
drill_down_url: '',
},
// the constructor
_create: function()
{
var me = this;
this.aNodes = [];
this.aEdges = [];
this.fZoom = 1.0;
this.xOffset = 0;
this.yOffset = 0;
this.iTextHeight = 12;
this.auto_scale();
this.oPaper = Raphael(this.element.get(0), this.element.width(), this.element.height());
this.element
.addClass('itop-simple-graph')
.addClass('graph');
this._create_toolkit_menu();
this._build_context_menus();
},
// called when created, and later when changing options
_refresh: function()
{
this.draw();
},
// events bound via _bind are removed automatically
// revert other modifications here
_destroy: function()
{
var sId = this.element.attr('id');
this.element
.removeClass('itop-simple-graph')
.removeClass('graph');
$('#tk_graph'+sId).remove();
$('#graph_'+sId+'_export_as_pdf').remove();
},
// _setOptions is called with a hash of all options that are changing
_setOptions: function()
{
this._superApply(arguments);
},
// _setOption is called for each individual option that is changing
_setOption: function( key, value )
{
this._superApply(arguments);
},
draw: function()
{
this.oPaper.clear();
for(var k in this.aNodes)
{
this._draw_node(this.aNodes[k]);
}
for(var k in this.aEdges)
{
this._draw_edge(this.aEdges[k]);
}
},
_draw_node: function(oNode)
{
var iWidth = oNode.width;
var iHeight = 32;
var xPos = Math.round(oNode.x * this.fZoom + this.xOffset);
var yPos = Math.round(oNode.y * this.fZoom + this.yOffset);
oNode.tx = 0;
oNode.ty = 0;
switch(oNode.shape)
{
case 'disc':
oNode.aElements.push(this.oPaper.circle(xPos, yPos, iWidth*this.fZoom / 2).attr(oNode.disc_attr));
var oText = this.oPaper.text(xPos, yPos, oNode.label);
oText.attr(oNode.text_attr);
oText.transform('s'+this.fZoom);
oNode.aElements.push(oText);
break;
case 'group':
oNode.aElements.push(this.oPaper.circle(xPos, yPos, iWidth*this.fZoom / 2).attr({fill: '#fff', 'stroke-width':0}));
oNode.aElements.push(this.oPaper.circle(xPos, yPos, iWidth*this.fZoom / 2).attr(oNode.disc_attr));
var xIcon = xPos - 18 * this.fZoom;
var yIcon = yPos - 18 * this.fZoom;
oNode.aElements.push(this.oPaper.image(oNode.icon_url, xIcon, yIcon, 16*this.fZoom, 16*this.fZoom).attr(oNode.icon_attr));
oNode.aElements.push(this.oPaper.image(oNode.icon_url, xIcon + 18*this.fZoom, yIcon, 16*this.fZoom, 16*this.fZoom).attr(oNode.icon_attr));
oNode.aElements.push(this.oPaper.image(oNode.icon_url, xIcon + 9*this.fZoom, yIcon + 18*this.fZoom, 16*this.fZoom, 16*this.fZoom).attr(oNode.icon_attr));
var oText = this.oPaper.text(xPos, yPos +2, oNode.label);
oText.attr(oNode.text_attr);
oText.transform('s'+this.fZoom);
var oBB = oText.getBBox();
var dy = iHeight/2*this.fZoom + oBB.height/2;
oText.remove();
oText = this.oPaper.text(xPos, yPos +dy +2, oNode.label);
oText.attr(oNode.text_attr);
oText.transform('s'+this.fZoom);
oNode.aElements.push(oText);
oNode.aElements.push(this.oPaper.rect( xPos - oBB.width/2 -2, yPos - oBB.height/2 + dy, oBB.width +4, oBB.height).attr({fill: '#fff', stroke: '#fff', opacity: 0.9}));
oText.toFront();
break;
case 'icon':
if(Raphael.svg)
{
// the colorShift plugin works only in SVG
oNode.aElements.push(this.oPaper.image(oNode.icon_url, xPos - iWidth * this.fZoom/2, yPos - iHeight * this.fZoom/2, iWidth*this.fZoom, iHeight*this.fZoom).colorShift('#fff', 1));
}
oNode.aElements.push(this.oPaper.image(oNode.icon_url, xPos - iWidth * this.fZoom/2, yPos - iHeight * this.fZoom/2, iWidth*this.fZoom, iHeight*this.fZoom).attr(oNode.icon_attr));
var oText = this.oPaper.text( xPos, yPos, oNode.label);
oText.attr(oNode.text_attr);
oText.transform('S'+this.fZoom);
var oBB = oText.getBBox();
var dy = iHeight/2*this.fZoom + oBB.height/2;
oText.remove();
oText = this.oPaper.text( xPos, yPos + dy, oNode.label);
oText.attr(oNode.text_attr);
oText.transform('S'+this.fZoom);
oNode.aElements.push(oText);
oNode.aElements.push(this.oPaper.rect( xPos - oBB.width/2 -2, yPos - oBB.height/2 + dy, oBB.width +4, oBB.height).attr({fill: '#fff', stroke: '#fff', opacity: 0.9}).toBack());
break;
}
if (oNode.source)
{
oNode.aElements.push(this.oPaper.circle(xPos, yPos, 1.25*iWidth*this.fZoom / 2).attr({stroke: '#c33', 'stroke-width': 3*this.fZoom }).toBack());
}
if (oNode.sink)
{
oNode.aElements.push(this.oPaper.circle(xPos, yPos, 1.25*iWidth*this.fZoom / 2).attr({stroke: '#33c', 'stroke-width': 3*this.fZoom }).toBack());
}
var me = this;
for(k in oNode.aElements)
{
var sNodeId = oNode.id;
$(oNode.aElements[k].node).attr({'data-type': oNode.shape, 'data-id': oNode.id} ).attr('class', 'popupMenuTarget');
oNode.aElements[k].drag(function(dx, dy, x, y, event) { me._move(sNodeId, dx, dy, x, y, event); }, function(x, y, event) { me._drag_start(sNodeId, x, y, event); }, function (event) { me._drag_end(sNodeId, event); });
}
},
_move: function(sNodeId, dx, dy, x, y, event)
{
var origDx = dx / this.fZoom;
var origDy = dy / this.fZoom;
var oNode = this._find_node(sNodeId);
oNode.x = oNode.xOrig + origDx;
oNode.y = oNode.yOrig + origDy;
for(k in oNode.aElements)
{
oNode.aElements[k].transform('t'+(oNode.tx + dx)+', '+(oNode.ty + dy));
for(j in this.aEdges)
{
var oEdge = this.aEdges[j];
if ((oEdge.source_node_id == sNodeId) || (oEdge.sink_node_id == sNodeId))
{
var sPath = this._get_edge_path(oEdge);
oEdge.aElements[0].attr({path: sPath});
}
}
}
},
_drag_start: function(sNodeId, x, y, event)
{
var oNode = this._find_node(sNodeId);
oNode.xOrig = oNode.x;
oNode.yOrig = oNode.y;
},
_drag_end: function(sNodeId, event)
{
var oNode = this._find_node(sNodeId);
oNode.tx += (oNode.x - oNode.xOrig) * this.fZoom;
oNode.ty += (oNode.y - oNode.yOrig) * this.fZoom;
oNode.xOrig = oNode.x;
oNode.yOrig = oNode.y;
},
_get_edge_path: function(oEdge)
{
var oStart = this._find_node(oEdge.source_node_id);
var oEnd = this._find_node(oEdge.sink_node_id);
var iArrowSize = 5;
if ((oStart == null) || (oEnd == null)) return '';
var xStart = Math.round(oStart.x * this.fZoom + this.xOffset);
var yStart = Math.round(oStart.y * this.fZoom + this.yOffset);
var xEnd = Math.round(oEnd.x * this.fZoom + this.xOffset);
var yEnd = Math.round(oEnd.y * this.fZoom + this.yOffset);
var sPath = Raphael.format('M{0},{1}L{2},{3}', xStart, yStart, xEnd, yEnd);
var vx = (xEnd - xStart);
var vy = (yEnd - yStart);
var l = Math.sqrt(vx*vx+vy*vy);
vx = vx / l;
vy = vy / l;
var ux = -vy;
var uy = vx;
var lPos = Math.max(l/2, l - 40*this.fZoom);
var xArrow = xStart + vx * lPos;
var yArrow = yStart + vy * lPos;
sPath += Raphael.format('M{0},{1}l{2},{3}M{4},{5}l{6},{7}', xArrow, yArrow, this.fZoom * iArrowSize *(-vx + ux), this.fZoom * iArrowSize *(-vy + uy), xArrow, yArrow, this.fZoom * iArrowSize *(-vx - ux), this.fZoom * iArrowSize *(-vy - uy));
return sPath;
},
_draw_edge: function(oEdge)
{
var fStrokeSize = Math.max(1, 2 * this.fZoom);
var sPath = this._get_edge_path(oEdge);
var oAttr = $.extend(oEdge.attr);
oAttr['stroke-linecap'] = 'round';
oAttr['stroke-width'] = fStrokeSize;
oEdge.aElements.push(this.oPaper.path(sPath).attr(oAttr).toBack());
},
_find_node: function(sId)
{
for(var k in this.aNodes)
{
if (this.aNodes[k].id == sId) return this.aNodes[k];
}
return null;
},
auto_scale: function()
{
var fMaxZoom = 1.5;
var maxHeight = this.element.parent().height();
// Compute the available height
var element = this.element;
this.element.parent().children().each(function() {
if($(this).is(':visible') && !$(this).hasClass('graph') && ($(this).attr('id') != element.attr('id')))
{
maxHeight = maxHeight - $(this).height();
}
});
this.element.height(maxHeight - 20);
iMargin = 10;
xmin = this.options.xmin - iMargin;
xmax = this.options.xmax + iMargin;
ymin = this.options.ymin - iMargin;
ymax = this.options.ymax + iMargin;
var xScale = this.element.width() / (xmax - xmin);
var yScale = this.element.height() / (ymax - ymin + this.iTextHeight);
this.fZoom = Math.min(xScale, yScale, fMaxZoom);
switch(this.options.align)
{
case 'left':
this.xOffset = -xmin * this.fZoom;
break;
case 'right':
this.xOffset = (this.element.width() - (xmax - xmin) * this.fZoom);
break;
case 'center':
this.xOffset = (this.element.width() - (xmax - xmin) * this.fZoom) / 2;
break;
}
switch(this.options['vertical-align'])
{
case 'top':
this.yOffset = -ymin * this.fZoom;
break;
case 'bottom':
this.yOffset = this.element.height() - (ymax + this.iTextHeight) * this.fZoom;
break;
case 'middle':
this.yOffset = (this.element.height() - (ymax - ymin + this.iTextHeight) * this.fZoom) / 2;
break;
}
},
add_node: function(oNode)
{
oNode.aElements = [];
this.aNodes.push(oNode);
},
add_edge: function(oEdge)
{
oEdge.aElements = [];
this.aEdges.push(oEdge);
},
show_group: function(sGroupId)
{
// Activate the 3rd tab
this.element.closest('.ui-tabs').tabs("option", "active", 2);
// Scroll into view the group
if ($('#'+sGroupId).length > 0)
{
$('#'+sGroupId)[0].scrollIntoView();
}
},
_create_toolkit_menu: function()
{
var sPopupMenuId = 'tk_graph'+this.element.attr('id');
var sHtml = '<div class="itop_popup toolkit_menu graph" style="font-size: 12px;" id="'+sPopupMenuId+'"><ul><li><img src="../images/toolkit_menu.png"><ul>';
if (this.options.export_as_pdf_url != '')
{
sHtml += '<li><a href="#" id="'+sPopupMenuId+'_pdf">Export as PDF...</a></li>';
}
if (this.options.export_as_document_url != '')
{
sHtml += '<li><a href="#" id="'+sPopupMenuId+'_document">Export as document...</a></li>';
}
sHtml += '<li><a href="#" id="'+sPopupMenuId+'_reload">Refresh</a></li>';
sHtml += '</ul></li></ul></div>';
this.element.before(sHtml);
$('#'+sPopupMenuId).popupmenu();
var me = this;
$('#'+sPopupMenuId+'_pdf').click(function() { me.export_as_pdf(); });
$('#'+sPopupMenuId+'_document').click(function() { me.export_as_document(); });
$('#'+sPopupMenuId+'_reload').click(function() { me.reload(); });
},
_build_context_menus: function()
{
var sId = this.element.attr('id');
var me = this;
$.contextMenu({
selector: '#'+sId+' .popupMenuTarget',
build: function(trigger, e) {
// this callback is executed every time the menu is to be shown
// its results are destroyed every time the menu is hidden
// e is the original contextmenu event, containing e.pageX and e.pageY (amongst other data)
var sType = trigger.attr('data-type');
var sNodeId = trigger.attr('data-id');
var oNode = me._find_node(sNodeId);
/*
var sObjName = trigger.attr('data-class');
var sIndex = trigger.attr('data-index');
var originalEvent = e;
var bHasItems = false;
*/
var oResult = {callback: null, items: {}};
switch(sType)
{
case 'group':
var sGroupIndex = oNode.group_index;
oResult = {
callback: function(key, options) {
var me = $('.itop-simple-graph').data('itopSimple_graph'); // need a live value
me.show_group('relation_group_'+sGroupIndex);
},
items: { 'show': {name: 'Show group' } }
};
break;
case 'icon':
var sObjClass = oNode.obj_class;
var sObjKey = oNode.obj_key;
oResult = {
callback: function(key, options) {
var me = $('.itop-simple-graph').data('itopSimple_graph'); // need a live value
var sURL = me.options.drill_down_url.replace('%1$s', sObjClass).replace('%2$s', sObjKey);
window.location.href = sURL;
},
items: { 'details': {name: 'Show Details' } }
};
break;
default:
oResult = false; // No context menu
}
return oResult;
}
});
},
export_as_pdf: function()
{
var oPositions = {};
for(k in this.aNodes)
{
oPositions[this.aNodes[k].id] = {x: this.aNodes[k].x, y: this.aNodes[k].y };
}
var sHtmlForm = '<div id="PDFExportDlg'+this.element.attr('id')+'"><form id="graph_'+this.element.attr('id')+'_export_as_pdf" target="_blank" action="'+this.options.export_as_pdf_url+'" method="post">';
sHtmlForm += '<input type="hidden" name="positions" value="">';
sHtmlForm += '<table>';
sHtmlForm += '<tr><td>Page format:</td><td><select name="p"><option value="A3">A3</option><option value="A4" selected>A4</option><option value="Letter">Letter</option></select></td></tr>';
sHtmlForm += '<tr><td>Page orientation:</td><td><select name="o"><option value="L" selected>Landscape</option><option value="P">Portrait</select></td></tr>';
sHtmlForm += '<table>';
sHtmlForm += '</form></div>';
$('body').append(sHtmlForm);
$('#graph_'+this.element.attr('id')+'_export_as_pdf input[name="positions"]').val(JSON.stringify(oPositions));
var me = this;
$('#PDFExportDlg'+this.element.attr('id')).dialog({
modal: true,
title: 'PDF format options',
buttons: [
{text: 'Cancel', click: function() { $(this).dialog('close');} },
{text: 'Export', click: function() { $('#graph_'+me.element.attr('id')+'_export_as_pdf').submit(); $(this).dialog('close');} },
]
});
//$('#graph_'+this.element.attr('id')+'_export_as_pdf').submit();
},
export_as_document: function()
{
alert('Export as document: not yet implemented');
},
reload: function()
{
alert('Reload: not yet implemented');
}
});
});