| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| /** |
| * SVG composite rendering functions. |
| */ |
| |
| var graph = {}; |
| |
| /** |
| * Basic colors |
| */ |
| graph.colors = {}; |
| graph.colors.black = '#000000'; |
| graph.colors.blue = '#0000ff'; |
| graph.colors.cyan = '#00ffff'; |
| graph.colors.gray = '#808080' |
| graph.colors.lightgray = '#dcdcdc' |
| graph.colors.green = '#00ff00'; |
| graph.colors.magenta = '#ff00ff'; |
| graph.colors.orange = '#ffa500'; |
| graph.colors.pink = '#ffc0cb'; |
| graph.colors.purple = '#800080'; |
| graph.colors.red = '#ff0000'; |
| graph.colors.white = '#ffffff'; |
| graph.colors.yellow = '#ffff00'; |
| graph.colors.link = '#598edd'; |
| |
| graph.colors.orange1 = '#ffd666'; |
| graph.colors.green1 = '#bbe082'; |
| graph.colors.blue1 = '#66dbdf'; |
| graph.colors.yellow1 = '#fdf57a'; |
| graph.colors.cyan1 = '#e6eafb'; |
| graph.colors.lightgray1 = '#eaeaea' |
| graph.colors.pink1 = '#ffd9e0'; |
| graph.colors.red1 = '#d03f41'; |
| graph.colors.white1 = '#ffffff'; |
| |
| graph.colors.orange2 = '#ffbb00'; |
| graph.colors.green2 = '#96d333'; |
| //graph.colors.blue2 = '#0d7cc1'; |
| graph.colors.blue2 = '#00c3c9'; |
| graph.colors.red2 = '#d03f41'; |
| graph.colors.yellow2 = '#fcee21'; |
| graph.colors.magenta2 = '#c0688a'; |
| graph.colors.cyan2 = '#d5dcf9'; |
| graph.colors.lightgray2 = '#dcdcdc' |
| graph.colors.pink2 = '#ffc0cb'; |
| graph.colors.white2 = '#ffffff'; |
| |
| graph.colors.orange3 = '#ffc700'; |
| graph.colors.green3 = '#92e120'; |
| graph.colors.blue3 = '#008fd1'; |
| graph.colors.yellow3 = '#fdf400'; |
| graph.colors.cyan3 = '#b4d3fd'; |
| graph.colors.lightgray3 = '#e3e3e3' |
| graph.colors.pink3 = '#da749b'; |
| graph.colors.red3 = '#ed3f48'; |
| graph.colors.white3 = '#ffffff'; |
| |
| /** |
| * Default positions and sizes. |
| */ |
| var palcx = 2500; |
| var proxcx = 20; |
| var proxcy = 20; |
| var buttoncx = 55; |
| var buttoncy = 23; |
| var curvsz = 4; |
| var tabsz = 2; |
| var titlex = 4; |
| var titley = 11; |
| var titlesp = 3; |
| var titlew = ui.isMobile()? -2 : 0; |
| |
| /** |
| * SVG rendering functions. |
| */ |
| |
| graph.svgns='http://www.w3.org/2000/svg'; |
| |
| /** |
| * Make an SVG graph. |
| */ |
| graph.mkgraph = function(cdiv, pos, cvalue, cadd, ccopy, cdelete) { |
| |
| // Create a div element to host the graph |
| var div = document.createElement('div'); |
| div.id = 'svgdiv'; |
| div.style.position = 'absolute'; |
| div.style.left = ui.pixpos(pos.xpos() + cdiv.offsetLeft); |
| div.style.top = ui.pixpos(pos.ypos() + cdiv.offsetTop); |
| //div.style.overflow = 'hidden'; |
| cdiv.appendChild(div); |
| |
| // Create SVG element |
| var svg = document.createElementNS(graph.svgns, 'svg'); |
| svg.style.height = ui.pixpos(5000); |
| svg.style.width = ui.pixpos(5000); |
| div.appendChild(svg); |
| |
| // Track element dragging and selection |
| graph.dragging = null; |
| graph.dragged = false; |
| graph.moverenderer = null; |
| graph.selected = null; |
| cvalue.disabled = true; |
| ccopy.disabled = true; |
| cdelete.disabled = true; |
| |
| /** |
| * Find the first draggable element in a hierarchy of elements. |
| */ |
| function draggable(n) { |
| if (n == div || n == svg || n == null) |
| return null; |
| if (n.nodeName == 'g' && !isNil(n.id) && n.id != '') |
| return n; |
| return draggable(n.parentNode); |
| } |
| |
| /** |
| * Handle a mouse down or touch start event. |
| */ |
| function onmousedown(e) { |
| |
| // Remember mouse or touch position |
| var pos = typeof e.touches != "undefined" ? e.touches[0] : e; |
| graph.downX = pos.screenX; |
| graph.downY = pos.screenY; |
| graph.moveX = pos.screenX; |
| graph.moveY = pos.screenY; |
| |
| // Engage the click component selection right away |
| // on mouse controlled devices |
| if (typeof e.touches == 'undefined') |
| onclick(e); |
| |
| // Find and remember draggable component |
| var dragging = draggable(e.target); |
| if (dragging == null || dragging != graph.selected) |
| return true; |
| graph.dragging = dragging; |
| graph.dragged = false; |
| |
| // Remember current drag position |
| graph.dragX = pos.screenX; |
| graph.dragY = pos.screenY; |
| |
| e.preventDefault(); |
| return true; |
| }; |
| |
| if (!ui.isMobile()) { |
| div.onmousedown = function(e) { |
| //log('onmousedown'); |
| var suspend = svg.suspendRedraw(10); |
| var r = onmousedown(e); |
| svg.unsuspendRedraw(suspend); |
| return r; |
| } |
| } else { |
| div.ontouchstart = function(e) { |
| //log('ontouchstart'); |
| |
| // Clear current move renderer if it's running |
| if (!isNil(graph.moverenderer)) { |
| clearInterval(graph.moverenderer); |
| graph.moverenderer = null; |
| } |
| |
| var suspend = svg.suspendRedraw(10); |
| var r = onmousedown(e); |
| svg.unsuspendRedraw(suspend); |
| return r; |
| } |
| } |
| |
| /** |
| * Handle a mouse up or touch end event. |
| */ |
| function onmouseup(e) { |
| |
| // Engage the click component selection now on touch devices |
| if (ui.isMobile()) { |
| if (!graph.dragged && graph.moveX == graph.downX && graph.moveY == graph.downY) |
| return onclick(e); |
| } |
| |
| // Stop here if the component was not dragged |
| if (graph.dragging == null) |
| return true; |
| if (!graph.dragged) { |
| graph.dragging = null; |
| return true; |
| } |
| |
| if (graph.dragging.parentNode == svg && graph.dragging.id.substring(0, 8) != 'palette:') { |
| |
| // Add new dragged component to the composite |
| if (isNil(graph.dragging.compos)) { |
| var compos = scdl.composite(svg.compos); |
| setElement(compos, graph.sortcompos(graph.addcomps(mklist(graph.dragging.comp), compos))); |
| graph.dragging.compos = svg.compos; |
| } |
| |
| // Update component position |
| setElement(graph.dragging.comp, graph.movecomp(graph.dragging.comp, graph.abspos(graph.dragging, svg))); |
| |
| // Wire component to neighboring reference |
| if (!isNil(graph.dragging.svcpos)) { |
| var compos = scdl.composite(svg.compos); |
| setElement(compos, graph.sortcompos(graph.clonerefs(graph.wire(graph.dragging, compos, svg)))); |
| } |
| |
| // Snap top level component position to grid |
| if (graph.dragging.parentNode == svg) { |
| var gpos = graph.relpos(graph.dragging); |
| setElement(graph.dragging.comp, graph.movecomp(graph.dragging.comp, graph.mkpath().pos(graph.gridsnap(gpos.xpos()), graph.gridsnap(gpos.ypos())))); |
| } |
| } |
| |
| // Forget current dragged component |
| graph.dragging = null; |
| graph.dragged = false; |
| |
| // Refresh the composite |
| //log('onmouseup refresh'); |
| var nodes = graph.refresh(svg); |
| |
| // Reselected the previously selected component |
| if (!isNil(graph.selected)) { |
| graph.selected = graph.findcompnode(scdl.name(graph.selected.comp), nodes); |
| graph.compselect(graph.selected, true, cvalue, ccopy, cdelete); |
| |
| // Trigger component select event |
| svg.oncompselect(graph.selected); |
| } |
| |
| // Trigger composite change event |
| svg.oncomposchange(false); |
| return true; |
| }; |
| |
| if (!ui.isMobile()) { |
| div.onmouseup = function(e) { |
| //log('onmouseup'); |
| var suspend = svg.suspendRedraw(10); |
| var r = onmouseup(e); |
| svg.unsuspendRedraw(suspend); |
| return r; |
| } |
| } else { |
| div.ontouchend = function(e) { |
| //log('ontouchend'); |
| |
| // Clear current move renderer if it's running |
| if (!isNil(graph.moverenderer)) { |
| clearInterval(graph.moverenderer); |
| graph.moverenderer = null; |
| } |
| |
| var suspend = svg.suspendRedraw(10); |
| var r = onmouseup(e); |
| svg.unsuspendRedraw(suspend); |
| return r; |
| } |
| } |
| |
| /** |
| * Handle a mouse or touch click event. |
| */ |
| function onclick(e) { |
| //log('onclick logic'); |
| |
| // Find selected component |
| var selected = draggable(e.target); |
| if (selected == null) { |
| if (graph.selected != null) { |
| |
| // Reset current selection |
| graph.compselect(graph.selected, false, cvalue, ccopy, cdelete); |
| graph.selected = null; |
| |
| // Trigger component select event |
| svg.oncompselect(null); |
| } |
| |
| // Dismiss the palette |
| if (e.target == div || e.target == svg && ui.numpos(div.style.left) != (palcx * -1)) |
| div.style.left = ui.pixpos(palcx * -1); |
| |
| return true; |
| } |
| |
| // Ignore multiple click events |
| if (selected == graph.selected) |
| return true; |
| if (selected.id.substring(0, 8) == 'palette:' && ui.numpos(div.style.left) != 0) |
| return true; |
| |
| // Deselect previously selected component |
| graph.compselect(graph.selected, false, cvalue, ccopy, cdelete); |
| |
| // Clone component from the palette |
| if (selected.id.substring(0, 8) == 'palette:') { |
| var compos = scdl.composite(svg.compos); |
| var comp = graph.clonepalette(selected, compos, svg); |
| setElement(compos, graph.sortcompos(graph.addcomps(mklist(comp), compos))); |
| |
| // Move into the editing area and hide the palette |
| div.style.left = ui.pixpos(palcx * -1); |
| |
| // Refresh the composite |
| //log('onclick refresh'); |
| var nodes = graph.refresh(svg); |
| |
| // Reselect the previously selected component |
| graph.selected = graph.findcompnode(scdl.name(comp), nodes); |
| graph.compselect(graph.selected, true, cvalue, ccopy, cdelete); |
| |
| // Trigger component select event |
| svg.oncompselect(graph.selected); |
| |
| // Trigger composite change event |
| svg.oncomposchange(true); |
| |
| } else { |
| graph.selected = selected; |
| |
| // Select the component |
| graph.compselect(graph.selected, true, cvalue, ccopy, cdelete); |
| |
| // Trigger component select event |
| svg.oncompselect(graph.selected); |
| } |
| |
| //log('comp selected'); |
| |
| if (e.preventDefault) |
| e.preventDefault(); |
| else |
| e.returnValue = false; |
| return true; |
| } |
| |
| if (!ui.isMobile()) { |
| div.onclick = function(e) { |
| //log('div onclick'); |
| var suspend = svg.suspendRedraw(10); |
| var r = onclick(e); |
| svg.unsuspendRedraw(suspend); |
| return r; |
| } |
| svg.onclick = function(e) { |
| //log('svg onclick'); |
| var suspend = svg.suspendRedraw(10); |
| var r = onclick(e); |
| svg.unsuspendRedraw(suspend); |
| return r; |
| } |
| } |
| |
| /** |
| * Handle a mouse or touch move event. |
| */ |
| function onmousemove(e) { |
| if (graph.dragging == null) |
| return true; |
| |
| // Ignore duplicate mouse move events |
| if (graph.moveX == graph.dragX && graph.moveY == graph.dragY) |
| return true; |
| |
| // Remember that the component was dragged |
| graph.dragged = true; |
| |
| // Cut wire to component |
| if (graph.dragging.parentNode != svg) { |
| var compos = scdl.composite(svg.compos); |
| setElement(compos, graph.sortcompos(graph.cutwire(graph.dragging, compos, svg))); |
| |
| // Bring component to the top |
| graph.bringtotop(graph.dragging, svg); |
| } |
| |
| // Calculate new position of dragged element |
| var gpos = graph.relpos(graph.dragging); |
| var newX = gpos.xpos() + (graph.moveX - graph.dragX); |
| var newY = gpos.ypos() + (graph.moveY - graph.dragY); |
| if (newX >= palcx) |
| graph.dragX = graph.moveX |
| else |
| newX = palcx; |
| if (newY >= 0) |
| graph.dragY = graph.moveY; |
| else |
| newY = 0; |
| |
| // Detach child elements to speedup rendering |
| graph.compoutline(graph.dragging, true); |
| |
| // Move the dragged element |
| graph.move(graph.dragging, graph.mkpath().pos(newX, newY)); |
| |
| return false; |
| }; |
| |
| if (!ui.isMobile()) { |
| window.onmousemove = function(e) { |
| //log('onmousemove'); |
| |
| // Remember mouse position |
| graph.moveX = e.screenX; |
| graph.moveY = e.screenY; |
| |
| var suspend = svg.suspendRedraw(10); |
| var r = onmousemove(e); |
| svg.unsuspendRedraw(suspend); |
| return r; |
| } |
| } else { |
| div.ontouchmove = function(e) { |
| //log('ontouchmove'); |
| |
| // Remember touch position |
| var pos = e.touches[0]; |
| if (graph.moveX == pos.screenX && graph.moveY == pos.screenY) |
| return true; |
| graph.moveX = pos.screenX; |
| graph.moveY = pos.screenY; |
| if (graph.moveX == graph.dragX && graph.moveY == graph.dragY) |
| return true; |
| |
| // Start async move renderer |
| if (graph.moverenderer == null) { |
| graph.moverenderer = setInterval(function() { |
| var suspend = svg.suspendRedraw(10); |
| onmousemove(e); |
| svg.unsuspendRedraw(suspend); |
| }, 10); |
| } |
| return true; |
| } |
| } |
| |
| /** |
| * Handle field on change events. |
| */ |
| function onvaluechange() { |
| if (graph.selected == null) |
| return false; |
| if (g.parentNode.style.visibility == 'hidden') |
| return false; |
| |
| // Change component name and refactor references to it |
| function changename() { |
| var compos = scdl.composite(svg.compos); |
| cvalue.value = graph.ucid(cvalue.value, compos, false); |
| graph.selected.id = cvalue.value; |
| setElement(compos, graph.sortcompos(graph.renamecomp(graph.selected.comp, compos, cvalue.value))); |
| |
| // Refresh the composite |
| //log('onchangename refresh'); |
| var nodes = graph.refresh(svg); |
| |
| // Reselected the previously selected component |
| graph.selected = graph.findcompnode(scdl.name(graph.selected.comp), nodes); |
| graph.compselect(graph.selected, true, cvalue, ccopy, cdelete); |
| |
| // Trigger component select event |
| svg.oncompselect(graph.selected); |
| |
| // Trigger composite change event |
| svg.oncomposchange(true); |
| return false; |
| } |
| |
| // Change the component property value |
| function changeprop() { |
| graph.setproperty(graph.selected.comp, cvalue.value); |
| cvalue.value = graph.property(graph.selected.comp); |
| cvalue.disabled = !graph.hasproperty(graph.selected.comp); |
| |
| // Refresh the composite |
| //log('onchangeprop refresh'); |
| var nodes = graph.refresh(svg); |
| |
| // Reselected the previously selected component |
| graph.selected = graph.findcompnode(scdl.name(graph.selected.comp), nodes); |
| graph.compselect(graph.selected, true, cvalue, ccopy, cdelete); |
| |
| // Trigger component select event |
| svg.oncompselect(graph.selected); |
| |
| // Trigger composite change event |
| svg.oncomposchange(true); |
| return false; |
| } |
| |
| return graph.hasproperty(graph.selected.comp)? changeprop() : changename(); |
| }; |
| |
| cvalue.onchange = function() { |
| var suspend = svg.suspendRedraw(10); |
| var r = onvaluechange(); |
| svg.unsuspendRedraw(suspend); |
| return r; |
| } |
| |
| // Handle delete event |
| function ondeleteclick() { |
| if (graph.selected == null) |
| return false; |
| if (graph.selected.id.substring(0, 8) != 'palette:') { |
| |
| // Remove selected component |
| var compos = scdl.composite(svg.compos); |
| if (isNil(graph.selected.compos)) |
| setElement(compos, graph.sortcompos(graph.cutwire(graph.selected, compos, svg))); |
| setElement(compos, graph.sortcompos(graph.clonerefs(graph.gcollect(graph.removecomp(graph.selected.comp, compos))))); |
| |
| // Reset current selection |
| graph.compselect(graph.selected, false, cvalue, ccopy, cdelete); |
| graph.selected = null; |
| |
| // Refresh the composite |
| //log('ondelete refresh'); |
| graph.refresh(svg); |
| |
| // Trigger component select event |
| svg.oncompselect(null); |
| |
| // Trigger composite change event |
| svg.oncomposchange(true); |
| } |
| return false; |
| }; |
| |
| cdelete.onclick = function() { |
| var suspend = svg.suspendRedraw(10); |
| var r = ondeleteclick(); |
| svg.unsuspendRedraw(suspend); |
| return r; |
| }; |
| |
| // Handle copy event |
| function oncopyclick() { |
| if (graph.selected == null) |
| return false; |
| if (graph.selected.id.substring(0, 8) == 'palette:') |
| return false; |
| |
| // Clone the selected component |
| var compos = scdl.composite(svg.compos); |
| var comps = graph.clonecomp(graph.selected, compos, svg); |
| setElement(compos, graph.sortcompos(graph.addcomps(comps, compos))); |
| |
| // Refresh the composite |
| //log('onclick refresh'); |
| var nodes = graph.refresh(svg); |
| |
| // Select the component clone |
| graph.selected = graph.findcompnode(scdl.name(car(comps)), nodes); |
| graph.compselect(graph.selected, true, cvalue, ccopy, cdelete); |
| |
| // Trigger component select event |
| svg.oncompselect(graph.selected); |
| |
| // Trigger composite change event |
| svg.oncomposchange(true); |
| |
| return false; |
| }; |
| |
| ccopy.onclick = function() { |
| var suspend = svg.suspendRedraw(10); |
| var r = oncopyclick(); |
| svg.unsuspendRedraw(suspend); |
| return r; |
| }; |
| |
| // Handle add event |
| cadd.onclick = function() { |
| |
| // Show the palette |
| div.style.left = ui.pixpos(0); |
| return false; |
| }; |
| |
| // Create a hidden SVG element to help compute the width |
| // of component and reference titles |
| graph.svgtitles = document.createElementNS(graph.svgns, 'svg'); |
| graph.svgtitles.style.visibility = 'hidden'; |
| graph.svgtitles.style.height = ui.pixpos(0); |
| graph.svgtitles.style.width = ui.pixpos(0); |
| div.appendChild(graph.svgtitles); |
| |
| return svg; |
| }; |
| |
| /** |
| * Point class. |
| */ |
| graph.Point = function(x, y) { |
| this.x = x; |
| this.y = y; |
| }; |
| graph.Point.prototype.xpos = function() { |
| return this.x; |
| }; |
| graph.Point.prototype.ypos = function() { |
| return this.y; |
| }; |
| |
| graph.mkpoint = function(x, y) { |
| return new graph.Point(x, y); |
| }; |
| |
| /** |
| * Path class. |
| */ |
| graph.Path = function() { |
| this.path = ''; |
| this.x = 0; |
| this.y = 0; |
| } |
| graph.Path.prototype.pos = function(x, y) { |
| this.x = x; |
| this.y = y; |
| return this; |
| }; |
| graph.Path.prototype.xpos = function() { |
| return this.x; |
| }; |
| graph.Path.prototype.ypos = function() { |
| return this.y; |
| }; |
| graph.Path.prototype.rmove = function(x, y) { |
| return this.move(this.x + x, this.y + y); |
| }; |
| graph.Path.prototype.rline = function(x, y) { |
| return this.line(this.x + x, this.y + y); |
| }; |
| graph.Path.prototype.rcurve = function(x1, y1, x, y) { |
| return this.curve(this.x + x1, this.y + y1, this.x + x1 + x, this.y + y1 + y); |
| }; |
| graph.Path.prototype.str = function() { |
| return this.path; |
| }; |
| graph.Path.prototype.clone = function() { |
| return graph.mkpath().pos(this.xpos(), this.ypos()); |
| }; |
| graph.Path.prototype.move = function(x, y) { |
| this.path += 'M' + x + ',' + y + ' '; |
| return this.pos(x, y); |
| }; |
| graph.Path.prototype.line = function(x, y) { |
| this.path += 'L' + x + ',' + y + ' '; |
| return this.pos(x, y); |
| }; |
| graph.Path.prototype.curve = function(x1, y1, x, y) { |
| this.path += 'Q' + x1 + ',' + y1 + ' ' + x + ',' + y + ' '; |
| return this.pos(x, y); |
| }; |
| graph.Path.prototype.end = function() { |
| this.path += 'Z'; |
| return this; |
| }; |
| |
| graph.mkpath = function() { |
| return new graph.Path(); |
| }; |
| |
| /** |
| * Return an element representing a title. |
| */ |
| graph.mktitle = function(t, x, y) { |
| var title = document.createElementNS(graph.svgns, 'text'); |
| title.setAttribute('x', x); |
| title.setAttribute('y', y); |
| title.setAttribute('class', 'svgtitle'); |
| title.setAttribute('pointer-events', 'none'); |
| title.appendChild(document.createTextNode(t)); |
| graph.svgtitles.appendChild(title); |
| return title; |
| }; |
| |
| /** |
| * Return an element representing the title of a component. |
| */ |
| graph.comptitle = function(comp) { |
| return memo(comp, 'title', function() { |
| var ct = graph.title(comp); |
| var pt = graph.propertytitle(comp); |
| if (ct == '' && pt == '') |
| return null; |
| return graph.mktitle((ct != '' && pt != '')? ct + ' ' + pt : ct + pt, titlex, titley); |
| }); |
| }; |
| |
| /** |
| * Return the width of the title of a component. |
| */ |
| graph.comptitlewidth = function(comp) { |
| var title = graph.comptitle(comp); |
| if (isNil(title)) |
| return 0; |
| return title.getBBox().width + titlew; |
| }; |
| |
| /** |
| * Draw a component shape selection. |
| */ |
| graph.compselect = function(g, s, cvalue, ccopy, cdelete) { |
| if (isNil(g) || !s) { |
| cvalue.value = ''; |
| cvalue.disabled = true; |
| ccopy.disabled = true; |
| cdelete.disabled = true; |
| if (isNil(g)) |
| return true; |
| g.shape.setAttribute('stroke', graph.colors.gray); |
| g.shape.setAttribute('stroke-width', '1'); |
| return true; |
| } |
| |
| cvalue.value = graph.hasproperty(g.comp)? graph.property(g.comp) : g.id; |
| cvalue.disabled = false; |
| ccopy.disabled = false; |
| cdelete.disabled = false; |
| |
| g.shape.setAttribute('stroke', graph.colors.link); |
| g.shape.setAttribute('stroke-width', '2'); |
| g.parentNode.appendChild(g); |
| return true; |
| }; |
| |
| /** |
| * Draw a palette shape selection. |
| */ |
| graph.paletteselect = function(g, s) { |
| if (isNil(g)) |
| return true; |
| if (!s) { |
| g.shape.setAttribute('stroke', graph.colors.gray); |
| g.shape.setAttribute('stroke-width', '1'); |
| return true; |
| } |
| |
| g.shape.setAttribute('stroke', graph.colors.link); |
| g.shape.setAttribute('stroke-width', '2'); |
| g.parentNode.appendChild(g); |
| return true; |
| }; |
| |
| /** |
| * Draw a component outline for faster rendering. |
| */ |
| graph.compoutline = function(g, s) { |
| if (s == (isNil(g.outlined)? false : g.outlined)) |
| return true; |
| g.outlined = s; |
| |
| if (s) { |
| g.shape.setAttribute('fill', 'none'); |
| if (!isNil(g.title)) |
| g.removeChild(g.title); |
| } else { |
| g.shape.setAttribute('fill', graph.color(g.comp)); |
| if (!isNil(g.title)) |
| g.appendChild(g.title); |
| } |
| |
| map(function(r) { |
| var n = caddr(r); |
| if (isNil(n)) |
| return r; |
| graph.compoutline(n, s); |
| return r; |
| }, g.refpos); |
| return true; |
| }; |
| |
| /** |
| * Return a node representing a component. |
| */ |
| graph.compnode = function(comp, cassoc, pos, parentg) { |
| |
| // Make the component title element |
| var title = graph.comptitle(comp); |
| |
| // Compute the path of the component shape |
| var path = graph.comppath(comp, cassoc); |
| |
| // Create the main component shape |
| var shape = document.createElementNS(graph.svgns, 'path'); |
| shape.setAttribute('d', path.str()); |
| shape.setAttribute('fill', graph.color(comp)); |
| //shape.setAttribute('fill-opacity', '0.6'); |
| shape.setAttribute('stroke', graph.colors.gray); |
| shape.setAttribute('stroke-width', '1'); |
| shape.setAttribute('pointer-events', 'visible'); |
| |
| // Create an svg group and add the shape and title to it |
| var g = document.createElementNS(graph.svgns, 'g'); |
| g.comp = comp; |
| g.id = scdl.name(comp); |
| g.setAttribute('transform', 'translate(' + pos.xpos() + ',' + pos.ypos() + ')'); |
| g.pos = pos.clone(); |
| g.appendChild(shape); |
| g.shape = shape; |
| if (!isNil(title)) { |
| g.appendChild(title); |
| g.title = title; |
| } |
| |
| // Store the the positions of the services and references |
| g.refpos = reverse(path.refpos); |
| g.svcpos = reverse(path.svcpos); |
| |
| // Handle onclick events |
| g.onclick = parentg.onclick; |
| |
| return g; |
| }; |
| |
| /** |
| * Find the node representing a component. |
| */ |
| graph.findcompnode = function(name, nodes) { |
| if (isNil(nodes)) |
| return null; |
| if (isNil(car(nodes).comp)) |
| return graph.findcompnode(name, cdr(nodes)); |
| if (name == scdl.name(car(nodes).comp)) |
| return car(nodes); |
| var node = graph.findcompnode(name, nodeList(car(nodes).childNodes)); |
| if (!isNil(node)) |
| return node; |
| return graph.findcompnode(name, cdr(nodes)); |
| } |
| |
| /** |
| * Return a graphical group. |
| */ |
| graph.mkgroup = function(pos) { |
| var g = document.createElementNS(graph.svgns, 'g'); |
| g.setAttribute('transform', 'translate(' + pos.xpos() + ',' + pos.ypos() + ')'); |
| g.pos = pos.clone(); |
| return g; |
| }; |
| |
| /** |
| * Return a node representing a button. |
| */ |
| graph.mkbutton = function(t, pos) { |
| |
| // Make the button title |
| var title = graph.mktitle(t, titlex, titley); |
| |
| // Compute the path of the button shape |
| var path = graph.buttonpath().str(); |
| |
| // Create the main button shape |
| var shape = document.createElementNS(graph.svgns, 'path'); |
| shape.setAttribute('d', path); |
| shape.setAttribute('fill', graph.colors.lightgray1); |
| //shape.setAttribute('fill-opacity', '0.6'); |
| shape.setAttribute('stroke', graph.colors.gray); |
| shape.setAttribute('stroke-width', '1'); |
| shape.setAttribute('pointer-events', 'visible'); |
| |
| // Create a group and add the button shape to it |
| var g = document.createElementNS(graph.svgns, 'g'); |
| g.setAttribute('transform', 'translate(' + pos.xpos() + ',' + pos.ypos() + ')'); |
| g.pos = pos.clone(); |
| g.appendChild(shape); |
| g.appendChild(title); |
| |
| // Store the button shape in the group |
| g.shape = shape; |
| |
| return g; |
| }; |
| |
| /** |
| * Return the relative position of a node. |
| */ |
| graph.relpos = function(e) { |
| var pmatrix = e.parentNode != null? e.parentNode.getCTM() : null; |
| var matrix = e.getCTM(); |
| var curX = pmatrix != null? (Number(matrix.e) - Number(pmatrix.e)): Number(matrix.e); |
| var curY = pmatrix != null? (Number(matrix.f) - Number(pmatrix.f)): Number(matrix.f); |
| return graph.mkpath().pos(curX, curY); |
| }; |
| |
| /** |
| * Move a node. |
| */ |
| graph.move = function(e, pos) { |
| e.setAttribute('transform', 'translate(' + pos.xpos() + ',' + pos.ypos() + ')'); |
| e.pos = pos.clone(); |
| }; |
| |
| /** |
| * Return the absolute position of a component node. |
| */ |
| graph.abspos = function(e, g) { |
| if (e == g) |
| return graph.mkpath(); |
| var gpos = graph.relpos(e); |
| var pgpos = graph.abspos(e.parentNode, g); |
| return graph.mkpath().pos(gpos.xpos() + pgpos.xpos(), gpos.ypos() + pgpos.ypos()); |
| }; |
| |
| /** |
| * Bring a component node to the top. |
| */ |
| graph.bringtotop = function(n, g) { |
| if (n == g) |
| return null; |
| graph.move(n, graph.abspos(n, g)); |
| g.appendChild(n); |
| } |
| |
| /** |
| * Return the title of a SCDL element. |
| */ |
| graph.title = function(e) { |
| var t = scdl.title(e); |
| if (t != null) { |
| if (t == 'gt') |
| return '>' |
| if (t == 'lt') |
| return '<'; |
| if (t.indexOf('{propval}') != -1) |
| return ''; |
| if (t.indexOf('{compname}') == -1) |
| return t; |
| return t.replace('{compname}', scdl.name(e)); |
| } |
| return scdl.name(e); |
| }; |
| |
| /** |
| * Return the property value of a SCDL component. |
| */ |
| graph.property = function(e) { |
| var p = scdl.properties(e); |
| if (isNil(p)) |
| return ''; |
| if (scdl.visible(car(p)) == 'false') |
| return ''; |
| var pv = scdl.propertyValue(car(p)); |
| return pv; |
| }; |
| |
| /** |
| * Return the title of a property of a SCDL component. |
| */ |
| graph.propertytitle = function(e) { |
| var pv = graph.property(e); |
| var t = scdl.title(e); |
| if (t.indexOf('{propval}') == -1) |
| return pv; |
| return t[0] == ' '? t.substr(1).replace('{propval}', pv) : t.replace('{propval}', pv); |
| }; |
| |
| /** |
| * Return true if a SCDL component has a property. |
| */ |
| graph.hasproperty = function(e) { |
| var p = scdl.properties(e); |
| if (isNil(p)) |
| return false; |
| if (scdl.visible(car(p)) == 'false') |
| return false; |
| return true; |
| }; |
| |
| /** |
| * Change the property value of a SCDL component. |
| */ |
| graph.setproperty = function(e, value) { |
| var p = scdl.properties(e); |
| if (isNil(p)) |
| return ''; |
| if (scdl.visible(car(p)) == 'false') |
| return ''; |
| var name = scdl.name(car(p)); |
| setElement(car(p), mklist(element, "'property", mklist(attribute, "'name", name != null? name : "property"), value)); |
| return value; |
| }; |
| |
| /** |
| * Return the color of a SCDL component. |
| */ |
| graph.color = function(comp) { |
| return memo(comp, 'color', function() { |
| var c = scdl.color(comp); |
| return c == null? graph.colors.blue1 : graph.colors[c]; |
| }); |
| }; |
| |
| /** |
| * Return the services on the left side of a component. |
| */ |
| graph.lsvcs = function(comp) { |
| return memo(comp, 'lsvcs', function() { |
| var svcs = scdl.services(comp); |
| if (isNil(svcs)) |
| return mklist(mklist("'element","'service","'attribute","'name",scdl.name(comp))); |
| var l = filter(function(s) { |
| var a = scdl.align(s); |
| var v = scdl.visible(s); |
| return (a == null || a == 'left') && v != 'false'; |
| }, svcs); |
| if (isNil(l)) |
| return mklist(); |
| return mklist(car(l)); |
| }); |
| }; |
| |
| /** |
| * Return the references on the right side of a component. |
| */ |
| graph.rrefs = function(comp) { |
| return memo(comp, 'rrefs', function() { |
| return filter(function(r) { |
| var a = scdl.align(r); |
| var v = scdl.visible(r); |
| return (a == null || a == 'right') && v != 'false'; |
| }, scdl.references(comp)); |
| }); |
| }; |
| |
| /** |
| * Return the height of a reference on the right side of a component. |
| */ |
| graph.rrefheight = function(ref, cassoc) { |
| return memo(ref, 'rheight', function() { |
| var target = assoc(scdl.target(ref), cassoc); |
| if (isNil(target)) |
| return tabsz * 8; |
| return graph.compclosureheight(cadr(target), cassoc); |
| }); |
| }; |
| |
| /** |
| * Return the total height of the references on the right side of a component. |
| */ |
| graph.rrefsheight = function(refs, cassoc) { |
| if (isNil(refs)) |
| return 0; |
| return graph.rrefheight(car(refs), cassoc) + graph.rrefsheight(cdr(refs), cassoc); |
| }; |
| |
| /** |
| * Return the height of a component node. |
| */ |
| graph.compheight = function(comp, cassoc) { |
| return memo(comp, 'height', function() { |
| var lsvcs = graph.lsvcs(comp); |
| var lsvcsh = Math.max(1, length(lsvcs)) * (tabsz * 8) + (tabsz * 4); |
| var rrefs = graph.rrefs(comp); |
| var rrefsh = graph.rrefsheight(rrefs, cassoc) + (tabsz * 2); |
| return Math.max(lsvcsh, rrefsh); |
| }); |
| }; |
| |
| /** |
| * Return the height of a component and the components wired to its bottom side. |
| */ |
| graph.compclosureheight = function(comp, cassoc) { |
| return memo(comp, 'closureheight', function() { |
| return graph.compheight(comp, cassoc); |
| }); |
| }; |
| |
| /** |
| * Return the max width of the references on the right side of a component. |
| */ |
| graph.rrefswidth = function(refs, cassoc) { |
| if (isNil(refs)) |
| return 0; |
| return Math.max(graph.rrefwidth(car(refs), cassoc), graph.rrefswidth(cdr(refs), cassoc)); |
| }; |
| |
| /** |
| * Return the width of a component. |
| */ |
| graph.compwidth = function(comp, cassoc) { |
| return memo(comp, 'width', function() { |
| var ctw = graph.comptitlewidth(comp); |
| var rrefsw = (isNil(graph.rrefs(comp))? 0 : (tabsz * 4)); |
| var twidth = (titlex * 2) + ctw + rrefsw; |
| var width = Math.max(twidth, (tabsz * 8) + (tabsz * 4)); |
| return width; |
| }); |
| }; |
| |
| /** |
| * Return a path representing a reference positioned to the right of a component. |
| */ |
| graph.rrefpath = function(ref, cassoc, path, maxheight) { |
| var height = graph.rrefheight(ref, cassoc); |
| |
| // Record reference position in the path |
| var xpos = path.xpos(); |
| var ypos = path.ypos(); |
| path.refpos = cons(mklist(ref, graph.mkpath().pos(xpos, ypos + (tabsz * 5))), path.refpos); |
| |
| // Compute the reference path |
| return path.rline(0,tabsz * 2).rcurve(0,tabsz,-tabsz,0).rcurve(-tabsz,0,0,-tabsz/2.0).rcurve(0,-tabsz/2.0,-tabsz,0).rcurve(-tabsz,0,0,tabsz/2.0).rline(0,tabsz * 3).rcurve(0,tabsz/2.0,tabsz,0).rcurve(tabsz,0,0,-tabsz/2.0).rcurve(0,-tabsz/2.0,tabsz,0).rcurve(tabsz,0,0,tabsz).line(path.xpos(), Math.min(ypos + height, maxheight)); |
| }; |
| |
| /** |
| * Return a path representing a service positioned to the left of a component. |
| */ |
| graph.lsvcpath = function(svc, cassoc, path, minheight) { |
| var height = tabsz * 8; |
| |
| // Record service position in the path |
| var xpos = path.xpos(); |
| var ypos = path.ypos(); |
| path.svcpos = cons(mklist(svc, graph.mkpath().pos(xpos, ypos - (tabsz * 6))), path.svcpos); |
| |
| // Compute the service path |
| return path.rline(0, -(tabsz * 2)).rcurve(0,-tabsz,-tabsz,0).rcurve(-tabsz,0,0,tabsz/2.0).rcurve(0,tabsz/2.0,-tabsz,0).rcurve(-tabsz,0,0,-tabsz/2.0).rline(0,-(tabsz * 3)).rcurve(0,-tabsz/2.0,tabsz,0).rcurve(tabsz,0,0,tabsz/2.0).rcurve(0,tabsz/2.0,tabsz,0).rcurve(tabsz,0,0,-tabsz).line(path.xpos(), Math.max(ypos - height, minheight)); |
| }; |
| |
| /** |
| * Return a path representing a component node. |
| */ |
| graph.comppath = function(comp, cassoc) { |
| |
| // Calculate the width and height of the component node |
| var width = graph.compwidth(comp, cassoc); |
| var height = graph.compheight(comp, cassoc); |
| |
| /** |
| * Apply a path rendering function to a list of services or references. |
| */ |
| function renderpath(x, f, cassoc, path, height) { |
| if (isNil(x)) |
| return path; |
| return renderpath(cdr(x), f, cassoc, f(car(x), cassoc, path, height), height); |
| } |
| |
| var path = graph.mkpath().move(curvsz,0); |
| |
| // Store the positions of services and references in the path |
| path.refpos = mklist(); |
| path.svcpos = mklist(); |
| |
| // Render the references on the right side of the component |
| var rrefs = graph.rrefs(comp); |
| path = path.line(width - curvsz,path.ypos()).rcurve(curvsz,0,0,curvsz); |
| path = renderpath(rrefs, graph.rrefpath, cassoc, path, height - curvsz); |
| |
| // Render the references on the bottom side of the component |
| var boffset = curvsz; |
| path = path.line(path.xpos(),height - curvsz).rcurve(0,curvsz,curvsz * -1,0).line(boffset, path.ypos()); |
| |
| // Render the services on the left side of the component |
| var lsvcs = graph.lsvcs(comp); |
| var loffset = curvsz + (length(lsvcs) * (tabsz * 8)); |
| path = path.line(curvsz,path.ypos()).rcurve(curvsz * -1,0,0,curvsz * -1).line(path.xpos(), loffset); |
| path = renderpath(lsvcs, graph.lsvcpath, cassoc, path, curvsz); |
| |
| // Close the component node path |
| path = path.line(0,curvsz).rcurve(0,curvsz * -1,curvsz,0); |
| |
| return path.end(); |
| }; |
| |
| /** |
| * Return the position of a component. |
| */ |
| graph.comppos = function(comp, pos) { |
| var x = scdl.x(comp); |
| var y = scdl.y(comp); |
| return graph.mkpath().pos(x != null? Number(x) + palcx : pos.xpos(), y != null? Number(y) : pos.ypos()); |
| }; |
| |
| /** |
| * Return a path representing a button node. |
| */ |
| graph.buttonpath = function(t) { |
| var path = graph.mkpath().move(curvsz,0); |
| path = path.line(buttoncx - curvsz,path.ypos()).rcurve(curvsz,0,0,curvsz); |
| path = path.line(path.xpos(),buttoncy - curvsz).rcurve(0,curvsz,-curvsz,0).line(curvsz, path.ypos()); |
| path = path.line(curvsz,path.ypos()).rcurve(-curvsz,0,0,-curvsz).line(path.xpos(), curvsz); |
| path = path.line(0,curvsz).rcurve(0,-curvsz,curvsz,0); |
| return path.end(); |
| }; |
| |
| /** |
| * Render a SCDL composite into a list of component nodes. |
| */ |
| graph.composite = function(compos, pos, aspalette, g) { |
| var name = scdl.name(scdl.composite(compos)); |
| var comps = scdl.components(compos); |
| var cassoc = scdl.nameToElementAssoc(comps); |
| var proms = scdl.promotions(compos); |
| |
| // Unmemoize any memoized info about components and their references. |
| map(function(c) { |
| unmemo(c); |
| map(function(r) { |
| unmemo(r); |
| }, scdl.references(c)); |
| }, comps); |
| |
| /** |
| * Render a component. |
| */ |
| function rendercomp(comp, cassoc, pos) { |
| |
| /** |
| * Render the references on the right side of a component. |
| */ |
| function renderrrefs(refs, cassoc, pos, gcomp) { |
| |
| /** |
| * Render a reference on the right side of a component. |
| */ |
| function renderrref(ref, cassoc, pos, gcomp) { |
| var target = assoc(scdl.target(ref), cassoc); |
| if (isNil(target)) |
| return null; |
| |
| // Render the component target of the reference |
| return rendercomp(cadr(target), cassoc, pos); |
| } |
| |
| /** |
| * Move the rendering cursor down below a reference. |
| */ |
| function rendermove(ref, cassoc, pos) { |
| return pos.clone().rmove(0, graph.rrefheight(ref, cassoc)); |
| } |
| |
| if (isNil(refs)) |
| return mklist(); |
| |
| // Return list of (ref, comp rendering) pairs |
| var grefcomp = renderrref(car(refs), cassoc, pos, gcomp); |
| return cons(mklist(car(refs), grefcomp), renderrrefs(cdr(refs), cassoc, rendermove(car(refs), cassoc, pos), gcomp)); |
| } |
| |
| // Compute the component shape |
| var gcomp = graph.compnode(comp, cassoc, pos, g); |
| |
| // Render the components wired to the component references |
| var rrefs = graph.rrefs(comp); |
| var rpos = graph.mkpath().rmove(graph.compwidth(comp, cassoc), 0); |
| var grrefs = renderrrefs(rrefs, cassoc, rpos, gcomp); |
| |
| // Store list of (ref, pos, component rendering) triplets in the component |
| function refposgcomp(refpos, grefs) { |
| if (isNil(refpos)) |
| return mklist(); |
| |
| // Append component rendering to component |
| var gref = cadr(car(grefs)); |
| if (gref != null) |
| gcomp.appendChild(gref); |
| return cons(mklist(car(car(refpos)), cadr(car(refpos)), gref), refposgcomp(cdr(refpos), cdr(grefs))); |
| } |
| |
| gcomp.refpos = refposgcomp(gcomp.refpos, grrefs); |
| |
| return gcomp; |
| } |
| |
| /** |
| * Render a list of promoted service components. |
| */ |
| function renderproms(svcs, cassoc, pos) { |
| |
| /** |
| * Return the component promoted by a service. |
| */ |
| function promcomp(svc, cassoc) { |
| var c = assoc(scdl.promote(svc), cassoc); |
| if (isNil(c)) |
| return mklist(); |
| return cadr(c); |
| } |
| |
| /** |
| * Move the rendering cursor down below a component. |
| */ |
| function rendermove(comp, cassoc, pos) { |
| return pos.clone().rmove(0, graph.compclosureheight(comp, cassoc) + Math.max((tabsz * 2), 8)); |
| } |
| |
| if (isNil(svcs)) |
| return mklist(); |
| |
| // Render the first promoted component in the list |
| // then recurse to render the rest of the list |
| var comp = promcomp(car(svcs), cassoc); |
| if (isNil(comp)) |
| return renderproms(cdr(svcs), cassoc, rendermove(car(svcs), cassoc, pos)); |
| |
| var cpos = graph.comppos(comp, pos); |
| return cons(rendercomp(comp, cassoc, cpos), renderproms(cdr(svcs), cassoc, rendermove(comp, cassoc, cpos))); |
| } |
| |
| // Render the promoted service components |
| var rproms = renderproms(proms, cassoc, pos.clone().rmove(tabsz * 4, tabsz * 4)); |
| |
| if (aspalette) { |
| |
| // Prefix ids of palette component elements with 'palette:' and |
| // move them to the palette area |
| return map(function(r) { |
| r.id = 'palette:' + r.id; |
| var gpos = r.pos; |
| graph.move(r, graph.mkpath().pos(gpos.xpos() - palcx, gpos.ypos())); |
| return r; |
| }, rproms); |
| |
| } else { |
| |
| // Link app component elements to the containing composite |
| return map(function(r) { r.compos = compos; return r; }, rproms); |
| } |
| }; |
| |
| /** |
| * Return a component unique id. |
| */ |
| graph.ucid = function(prefix, compos1, compos2, clone) { |
| |
| // Build an assoc list keyed by component name |
| var comps = map(function(c) { return mklist(scdl.name(c), c); }, append(namedElementChildren("'component", compos1), namedElementChildren("'component", compos2))); |
| |
| if (!clone && isNil(assoc(prefix, comps))) |
| return prefix; |
| |
| /** |
| * Find a free component id. |
| */ |
| function ucid(p, id) { |
| if (isNil(assoc(p + id, comps))) |
| return p + id; |
| return ucid(p, id + 1); |
| } |
| |
| /** |
| * Remove trailing digits from a prefix. |
| */ |
| function untrail(p) { |
| if (p.length < 2 || p[p.length - 1] < '0' || p[p.length - 1] > '9') |
| return p; |
| return untrail(p.substring(0, p.length - 1)); |
| } |
| |
| return ucid(prefix == ''? 'comp' : (clone? untrail(prefix) : prefix), 1); |
| }; |
| |
| /** |
| * Clone a palette component node. |
| */ |
| graph.clonepalette = function(e, compos, g) { |
| |
| // Clone the SCDL component and give it a unique name |
| var wcomp = append(mklist(element, "'component", mklist(attribute, "'name", graph.ucid(scdl.name(e.comp), compos, compos, true))), |
| filter(function(c) { return !(isAttribute(c) && attributeName(c) == "'name")}, elementChildren(e.comp))); |
| var x = '<composite>' + writeXML(mklist(wcomp), false) + '</composite>'; |
| var rcompos = scdl.composite(readXML(mklist(x))); |
| var comp = car(scdl.components(mklist(rcompos))); |
| |
| // Update component position |
| setElement(comp, graph.movecomp(comp, graph.abspos(e, g).rmove(palcx, 0))); |
| |
| return comp; |
| }; |
| |
| /** |
| * Move a SCDL component to the given position. |
| */ |
| graph.movecomp = function(comp, pos) { |
| if (isNil(pos)) |
| return append(mklist(element, "'component"), |
| filter(function(e) { return !(isAttribute(e) && (attributeName(e) == "'x" || attributeName(e) == "'y")); }, elementChildren(comp))); |
| return append(mklist(element, "'component", mklist(attribute, "'x", '' + (pos.xpos() - palcx)), mklist(attribute, "'y", '' + pos.ypos())), |
| filter(function(e) { return !(isAttribute(e) && (attributeName(e) == "'x" || attributeName(e) == "'y")); }, elementChildren(comp))); |
| }; |
| |
| /** |
| * Align a pos along a 10pixel grid. |
| */ |
| graph.gridsnap = function(x) { |
| return Math.round(x / 10) * 10; |
| } |
| |
| /** |
| * Clone a component node and all the components it references. |
| */ |
| graph.clonecomp = function(e, compos, g) { |
| |
| // Write the component and the components it references to XML |
| function collectcomp(e) { |
| function collectrefs(refpos) { |
| if (isNil(refpos)) |
| return mklist(); |
| var r = car(refpos); |
| var n = caddr(r); |
| if (isNil(n)) |
| return collectrefs(cdr(refpos)); |
| return append(collectcomp(n), collectrefs(cdr(refpos))); |
| } |
| |
| return cons(e.comp, collectrefs(e.refpos)); |
| } |
| |
| var allcomps = collectcomp(e); |
| var ls = map(function(e) { return writeXML(mklist(e), false); }, allcomps); |
| var x = '<composite>' + writeStrings(ls) + '</composite>'; |
| |
| // Read them back from XML to clone them |
| var rcompos = scdl.composite(readXML(mklist(x))); |
| var comps = scdl.components(mklist(rcompos)); |
| |
| // Give them new unique names |
| map(function(e) { |
| |
| // Rename each component |
| var oname = scdl.name(e); |
| var name = graph.ucid(oname, compos, rcompos, true); |
| setElement(e, append(mklist(element, "'component", mklist(attribute, "'name", name)), |
| filter(function(c) { return !(isAttribute(c) && attributeName(c) == "'name")}, elementChildren(e)))); |
| |
| // Refactor references to the component |
| map(function(c) { return graph.refactorrefs(scdl.references(c), oname, name); }, comps); |
| }, comps); |
| |
| // Update the top component position |
| var comp = car(comps); |
| setElement(comp, graph.movecomp(comp, graph.abspos(e, g).rmove(10, 10))); |
| |
| return comps; |
| }; |
| |
| /** |
| * Sort elements of a composite. |
| */ |
| graph.sortcompos = function(compos) { |
| return append(mklist(element, "'composite"), elementChildren(compos).sort(function(a, b) { |
| |
| // Sort attributes, place them at the top |
| var aa = isAttribute(a); |
| var ba = isAttribute(b); |
| if (aa && !ba) return -1; |
| if (!aa && ba) return 1; |
| if (aa && ba) { |
| var aan = attributeName(a); |
| var ban = attributeName(b); |
| if (aan < ban) return -1; |
| if (aan > ban) return 1; |
| return 0; |
| } |
| |
| // Sort elements, place services before components |
| var aen = elementName(a); |
| var ben = elementName(b); |
| if (aen == "'service" && ben == "'component") return -1; |
| if (aen == "'component" && ben == "'service") return 1; |
| var an = scdl.name(a); |
| var bn = scdl.name(b); |
| if (an < bn) return -1; |
| if (an > bn) return 1; |
| return 0; |
| })); |
| } |
| |
| /** |
| * Add a list of components to a SCDL composite. The first |
| * component in the list is a promoted component. |
| */ |
| graph.addcomps = function(comps, compos) { |
| var comp = car(comps); |
| var name = scdl.name(comp); |
| var prom = mklist(element, "'service", mklist(attribute, "'name", name), mklist(attribute, "'promote", name)); |
| return append(mklist(element, "'composite"), append(elementChildren(compos), cons(prom, comps))); |
| }; |
| |
| /** |
| * Remove a component from a SCDL composite. |
| */ |
| graph.removecomp = function(comp, compos) { |
| var name = scdl.name(comp); |
| return append(mklist(element, "'composite"), |
| filter(function(c) { return !(isElement(c) && scdl.name(c) == name); }, elementChildren(compos))); |
| }; |
| |
| /** |
| * Garbage collect components not referenced or promoted. |
| */ |
| graph.gcollect = function(compos) { |
| |
| // List the promoted components |
| var proms = map(function(s) { return mklist(scdl.promote(s), true); }, scdl.promotions(mklist(compos))); |
| |
| // List the referenced components |
| var refs = reduce(function(a, comp) { |
| return append(a, |
| map(function(ref) { return mklist(scdl.target(ref), true); }, filter(function(ref) { return scdl.target(ref) != null; }, scdl.references(comp)))); |
| }, mklist(), scdl.components(mklist(compos))); |
| |
| // Filter out the unused components |
| var used = append(proms, refs); |
| return append(mklist(element, "'composite"), |
| filter(function(c) { return !(isElement(c) && elementName(c) == "'component" && isNil(assoc(scdl.name(c), used))); }, elementChildren(compos))); |
| } |
| |
| /** |
| * Clone and cleanup clonable references. |
| */ |
| graph.clonerefs = function(compos) { |
| return append(mklist(element, "'composite"), |
| map(function(c) { |
| if (elementName(c) != "'component") |
| return c; |
| |
| // If the references are clonable |
| var refs = scdl.references(c); |
| if (isNil(refs)) |
| return c; |
| if (scdl.clonable(car(refs)) != 'true') |
| return c; |
| |
| // Filter out the unwired references and add a fresh unwired |
| // reference at the end of the list |
| var cc = append( |
| filter(function(e) { return !(elementName(e) == "'reference" && scdl.target(e) == null); }, elementChildren(c)), |
| mklist(mklist(element, "'reference", mklist(attribute, "'name", scdl.name(car(refs))), mklist(attribute, "'clonable", "true")))); |
| return append(mklist(element, "'component"), cc); |
| |
| }, elementChildren(compos))); |
| } |
| |
| /** |
| * Refactor references to a component. |
| */ |
| graph.refactorrefs = function(refs, oname, nname) { |
| if (isNil(refs)) |
| return true; |
| var ref = car(refs); |
| if (scdl.target(ref) != oname) |
| return graph.refactorrefs(cdr(refs), oname, nname); |
| |
| // Change the reference's target attribute |
| setElement(ref, append(mklist(element, "'reference"), |
| append(filter(function(e) { return !(isAttribute(e) && attributeName(e) == "'target"); }, elementChildren(ref)), |
| mklist(mklist(attribute, "'target", nname))))); |
| |
| return graph.refactorrefs(cdr(refs), oname, nname); |
| }; |
| |
| /** |
| * Rename a component. |
| */ |
| graph.renamecomp = function(comp, compos, name) { |
| |
| // Refactor all the references to the renamed component |
| var oname = scdl.name(comp); |
| map(function(c) { return graph.refactorrefs(scdl.references(c), oname, name); }, namedElementChildren("'component", compos)); |
| |
| // Rename the SCDL promoted service and component |
| var proms = filter(function(s) { return scdl.name(s) == oname }, scdl.services(compos)); |
| if (!isNil(proms)) |
| setElement(car(proms), mklist(element, "'service", mklist(attribute, "'name", name), mklist(attribute, "'promote", name))); |
| setElement(comp, append(mklist(element, "'component"), |
| cons(mklist(attribute, "'name", name), |
| filter(function(e) { return !(isAttribute(e) && attributeName(e) == "'name"); }, elementChildren(comp))))); |
| |
| return append(mklist(element, "'composite"), elementChildren(compos)); |
| }; |
| |
| /** |
| * Cut the wire to a component node and make that node a |
| * top level component node. |
| */ |
| graph.cutwire = function(node, compos, g) { |
| |
| /** |
| * Find the reference wired to a node and cut its wire. |
| */ |
| function cutref(refs, node) { |
| if (isNil(refs)) |
| return true; |
| var ref = car(refs); |
| if (caddr(ref) == node) { |
| setlist(ref, mklist(car(ref), cadr(ref), null)); |
| setElement(car(ref), |
| append(mklist(element, "'reference"), |
| filter(function(e) { return !(isAttribute(e) && attributeName(e) == "'target"); }, elementChildren(car(ref))))); |
| } |
| return cutref(cdr(refs), node); |
| } |
| |
| // Cut any reference wire, if found |
| cutref(node.parentNode.refpos, node); |
| |
| // Make the component node a top level node. |
| node.compos = g.compos; |
| |
| // Update the SCDL composite, add a promote element for |
| // that component |
| var comp = node.comp; |
| var name = scdl.name(comp); |
| var prom = mklist(element, "'service", mklist(attribute, "'name", name), mklist(attribute, "'promote", name)); |
| return append(mklist(element, "'composite"), |
| append(mklist(prom), filter(function(c) { return !(isElement(c) && elementName(c) == "'service" && scdl.name(c) == name); }, elementChildren(compos)))); |
| } |
| |
| /** |
| * Wire a component to the closest neighbor reference. |
| */ |
| graph.wire = function(n, compos, g) { |
| |
| // Compute position of the component's service node |
| var spos = cadr(car(n.svcpos)); |
| var aspos = graph.abspos(n, g).rmove(spos.xpos(), spos.ypos()); |
| |
| /** |
| * Find closest unwired reference node among all the references |
| * of all the components. |
| */ |
| function closecomprefs(nodes, spos, cref) { |
| |
| /** |
| * Find the closest unwired reference node among all the |
| * references of a node. |
| */ |
| function closerefs(npos, refs, spos, cref) { |
| if (isNil(refs)) |
| return cref; |
| var fdist = cadddr(cref); |
| var ref = car(refs); |
| |
| // Skip wired reference |
| if (!isNil(filter(function(n) { return isAttribute(n) && attributeName(n) == "'target"; }, car(ref)))) |
| return closerefs(npos, cdr(refs), spos, cref); |
| |
| // Compute distance between service node and reference node |
| var rpos = cadr(ref).clone().rmove(npos.xpos(), npos.ypos()); |
| var dx = Math.pow(rpos.xpos() - spos.xpos(), 2); |
| var dy = Math.pow(rpos.ypos() - spos.ypos(), 2); |
| |
| // Check for proximity threshold |
| var rdist = (dx < (proxcx * proxcx) && dy < (proxcy * proxcy))? Math.sqrt(dx + dy) : 25000000; |
| |
| // Go through all the references in the component |
| return closerefs(npos, cdr(refs), spos, fdist < rdist? cref : mklist(car(ref), cadr(ref), caddr(ref), rdist)); |
| } |
| |
| if (isNil(nodes)) |
| return cref; |
| |
| // Skip non-component nodes |
| var node = car(nodes); |
| if (isNil(node.comp)) |
| return closecomprefs(cdr(nodes), spos, cref); |
| |
| // Compute the component absolute position |
| var npos = graph.abspos(node, g); |
| |
| // Go through all the components and their references |
| return closecomprefs(append(nodeList(node.childNodes), cdr(nodes)), spos, closerefs(npos, node.refpos, spos, cref)); |
| } |
| |
| // Find closest reference node |
| var cref = closecomprefs(nodeList(g.childNodes), aspos, mklist(null, graph.mkpath(), null, 25000000)); |
| if (car(cref) == null) |
| return compos; |
| if (cadddr(cref) == 25000000) |
| return compos; |
| |
| // Wire component to that reference, un-promote it, and |
| // update the SCDL reference and composite |
| setElement(n.comp, graph.movecomp(graph.dragging.comp, null)); |
| n.compos = null; |
| setElement(car(cref), append(mklist(element, "'reference", mklist(attribute, "'target", scdl.name(n.comp))), elementChildren(car(cref)))); |
| var name = scdl.name(n.comp); |
| return append(mklist(element, "'composite"), |
| filter(function(c) { return !(isElement(c) && elementName(c) == "'service" && scdl.name(c) == name); }, elementChildren(compos))); |
| } |
| |
| /** |
| * Display a list of graphical nodes. |
| */ |
| graph.display = function(nodes, g, svg) { |
| var suspend = svg.suspendRedraw(10); |
| |
| // Append the nodes to the graphical canvas |
| appendNodes(nodes, g); |
| |
| svg.unsuspendRedraw(suspend); |
| return nodes; |
| }; |
| |
| /** |
| * Hide a graph. |
| */ |
| graph.hide = function(g) { |
| |
| // Remove nodes from the graph |
| map(function(n) { if (!isNil(n.comp) && n.id.substr(0, 8) != 'palette:') { g.removeChild(n); } return n; }, nodeList(g.childNodes)); |
| return g; |
| }; |
| |
| /** |
| * Refresh a graph. |
| */ |
| graph.refresh = function(g) { |
| //log('refresh'); |
| |
| // Remove existing nodes from the graph |
| map(function(n) { if (!isNil(n.comp) && n.id.substr(0, 8) != 'palette:') { g.removeChild(n); } return n; }, nodeList(g.childNodes)); |
| |
| // Redisplay the composite associated with the graph |
| var nodes = graph.composite(g.compos, graph.mkpath().pos(palcx,0), false, g); |
| appendNodes(nodes, g); |
| return nodes; |
| }; |
| |
| /** |
| * Display and enable editing of a composite and the graphical |
| * nodes that represent it. |
| */ |
| graph.edit = function(appname, compos, nodes, onchange, onselect, g) { |
| var suspend = g.suspendRedraw(10); |
| |
| // Store the appname and composite in the graphical canvas |
| g.appname = appname; |
| g.compos = compos; |
| |
| // Sort the composite elements now to allow for change detection later |
| var scompos = scdl.composite(g.compos); |
| setElement(scompos, graph.sortcompos(scompos)); |
| |
| // Store event listeners |
| g.oncomposchange = onchange; |
| g.oncompselect = onselect; |
| |
| // Remove existing nodes from the graph |
| map(function(n) { if (!isNil(n.comp) && n.id.substr(0, 8) != 'palette:') { g.removeChild(n); } return n; }, nodeList(g.childNodes)); |
| |
| // Display the composite nodes |
| appendNodes(nodes, g); |
| |
| g.unsuspendRedraw(suspend); |
| return nodes; |
| }; |
| |
