KingOfDog/fsm-designer
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

General improvements

Browse Source
This commit is contained in:
KingOfDog 2019-04-03 16:15:15 +02:00 committed by Marcel
parent 1bf43ef28d
commit 23c24ded96
11 changed files with 828 additions and 152 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

145
index.html
View File

@ -30,7 +30,7 @@
padding: 0 40px;
}
input {
input:not([type=checkbox]) {
width: 100%;
font-size: 16px;
padding: 8px 16px;
@ -44,6 +44,11 @@
background-color: rgba(0, 0, 0, .2);
}
label {
display: block;
margin-bottom: 8px;
}
/**
* Buttons
*/
@ -127,7 +132,7 @@
.action-button {
background: #fff;
margin: 0 8px;
margin: 4px 8px;
}
.action-button .fa {
@ -199,11 +204,109 @@
margin: 0 auto;
background: #fff;
border-radius: 10px;
width: calc(100% - 20px);
}
#previewImage {
width: 100%;
}
.explanation {
max-width: 800px;
margin: 10px auto;
padding: 0 20px;
}
/**
* Context Menu
*/
.contextmenu {
position: absolute;
top: 0;
left: 0;
display: none;
border-radius: 10px;
border: 1px solid rgba(0, 0, 0, .33);
box-shadow: 0 0 4px rgba(0, 0, 0, .15);
margin: 0;
padding: 0;
list-style: none;
min-width: 150px;
background: #fff;
}
.contextmenu > li {
padding: 8px 16px;
cursor: pointer;
}
.contextmenu > li:first-child {
border-top-left-radius: 10px;
border-top-right-radius: 10px;
}
.contextmenu > li:last-child {
border-bottom-left-radius: 10px;
border-bottom-right-radius: 10px;
}
.contextmenu > li:hover {
background: rgba(0, 0, 0, .1);
}
.contextmenu > li:active {
background: rgba(0, 0, 0, .2);
}
/**
* Drag Overlay
*/
#dragOverlay {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: rgba(0, 0, 0, .75);
padding: 20px;
color: #fff;
pointer-events: none;
opacity: 0;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
-webkit-transition: opacity .25s;
-moz-transition: opacity .25s;
-ms-transition: opacity .25s;
-o-transition: opacity .25s;
transition: opacity .25s;
}
#dragOverlay.visible {
opacity: 1;
pointer-events: all;
cursor: pointer;
}
#dragOverlay .border {
width: 100%;
height: 100%;
border-radius: 10px;
border: 4px dashed white;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
#dragOverlay .content {
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
text-align: center;
}
</style>
</head>
<body>
@ -235,7 +338,43 @@
<canvas id="canvas"></canvas>
<div class="explanation">
<p>Oben befindet sich der sogenannter FSM-Designer. Dieser ermöglicht es unter anderem deterministische endliche Automaten zu erstellen.</p>
<p>Funktionsweise:</p>
<ul>
<li><b>Zustand hinzufügen:</b> Doppelklick</li>
<li><b>Übergang hinzufügen:</b> <code>Shift</code> gedrückt halten und mit linker Maustaste ziehen</li>
<li><b>Verschieben:</b> klassisches Drag'n'drop</li>
<li><b>Endzustand:</b> Doppelklick auf einen bestehenden Zustand</li>
<li><b>Index:</b> Unterstrich vor eine Zahl hinzufügen (z.B. <code>q_0</code>)</li>
<li><b>Griechischer Buchstabe:</b> Name des Buchstaben mit Backslash (z.B. <code>\epsilon</code>)</li>
</ul>
<p>Diese Anwendung wurde mithilfe von HTML5 Canvas und JavaScript ECMA2016 erstellt.</p>
<p>Der Source Code ist open source auf <a href="https://git.kingofdog.eu/KingOfDog/fsm-designer">Gitea</a> verfügbar (demnächst womöglich auch über Github).</p>
<p>Made with <i class="fa fa-heart"></i> by <a href="https://kingofdog.eu">KingOfDog</a>.</p>
</div>
<ul id="contextmenuCanvas" class="contextmenu">
<li>Test</li>
</ul>
<div id="dragOverlay">
<div class="border"></div>
<div class="content">
<h1>Datei ablegen (.fsm)</h1>
<h3>Dokument importieren und weiterarbeiten!</h3>
</div>
</div>
<script src="lib/tingle/tingle.min.js"></script>
<script src="lib/contextmenu.js/contextMenu.min.js"></script>
<script src="js/math.js"></script>
<script src="js/export/export.js"></script>
@ -245,7 +384,7 @@
<script src="js/components/self-connection.js"></script>
<script src="js/components/temporary-connection.js"></script>
<script src="js/components/state.js"></script>
<script src="js/FSMDocument.js"></script>
<script src="js/fsm-document.js"></script>
<script src="js/main.js"></script>
<script src="js/simulate.js"></script>
<script src="js/menu.js"></script>

86
js/FSMDocument.js
View File

@ -1,86 +0,0 @@
class FSMDocument {
constructor(name) {
this.id = guid();
this.name = null;
this.createdAt = Date.now();
this.lastModified = Date.now();
this.element = null;
this.unsaved = true;
this.lastSavedHash = '';
this.states = [];
this.connections = [];
}
tick() {
this.states.forEach(stateA => {
this.states.forEach(stateB => {
if (stateA !== stateB && stateA.intersects(stateB)) {
const inter = stateA.intersection(stateB);
const angle1 = stateA.directionTo(stateB);
const angle2 = angle1 + Math.PI;
const x1 = Math.cos(angle1) * inter + stateA.x;
const y1 = Math.sin(angle1) * inter + stateA.y;
const x2 = Math.cos(angle2) * inter + stateB.x;
const y2 = Math.sin(angle2) * inter + stateB.y;
stateA.moveTo(x1, y1);
stateB.moveTo(x2, y2);
}
});
});
this.states.forEach(state => {
if (state.v) {
state.moveToStep();
}
});
if(!this.unsaved) {
if(this.hashCode() !== this.lastSavedHash) {
this.unsaved = true;
this.element.classList.add('unsaved');
}
}
}
draw() {
this.states.forEach(state => state.draw());
this.connections.forEach(connection => connection.draw());
}
onDblClick(x, y) {
if (!selectedObject) {
selectedObject = new State(x, y);
this.states.push(selectedObject);
resetCaret();
} else if (selectedObject instanceof State) {
selectedObject.isAcceptState = !selectedObject.isAcceptState;
}
}
onRightClick(x, y) {
if(!selectedObject) {
}
}
deleteCurrentObject() {
if (!!selectedObject) {
if (selectedObject instanceof State) {
this.states.splice(this.states.findIndex(state => state === selectedObject), 1);
}
for (let i = 0; i < this.connections.length; i++) {
const con = this.connections[i];
if (con === selectedObject || con.state === selectedObject || con.stateA === selectedObject || con.stateB === selectedObject) {
this.connections.splice(i--, 1);
}
}
selectedObject = null;
}
}
}

13
js/components/connection.js
View File

@ -1,15 +1,26 @@
class Connection {
constructor(stateA, stateB) {
this.id = guid();
this.stateA = stateA;
this.stateB = stateB;
this.text = '';
this._text = '';
this.lineAngleAdjust = 0;
this.parallelPart = 0.5;
this.perpendicularPart = 0;
}
get text() {
return this._text;
}
set text(value) {
documents[activeDocument].addChange('connection', this.id, 'edit', ['_text'], [this._text], true);
this._text = value;
documents[activeDocument].addChange('connection', this.id, 'edit', ['_text'], [this._text]);
}
getAnchorPoint() {
const dx = this.stateB.x - this.stateA.x;
const dy = this.stateB.y - this.stateA.y;

13
js/components/self-connection.js
View File

@ -1,16 +1,27 @@
class SelfConnection {
constructor(state, mouse) {
this.id = guid();
this.state = state;
this.anchorAngle = 0;
this.mouseOffsetAngle = 0;
this.text = '';
this._text = '';
if(mouse) {
this.setAnchorPoint(mouse.x, mouse.y);
}
}
get text() {
return this._text;
}
set text(value) {
documents[activeDocument].addChange('selfconnection', this.id, 'edit', ['_text'], [this._text], true);
this._text = value;
documents[activeDocument].addChange('selfconnection', this.id, 'edit', ['_text'], [this._text]);
}
setMouseStart(x, y) {
this.mouseOffsetAngle = this.anchorAngle - Math.atan2(y - this.state.y, x - this.state.x);
}

13
js/components/start-connection.js
View File

@ -1,16 +1,27 @@
class StartConnection {
constructor(state, start) {
this.id = guid();
this.state = state;
this.deltaX = 0;
this.deltaY = 0;
this.text = '';
this._text = '';
if (start) {
this.setAnchorPoint(start.x, start.y);
}
}
get text() {
return this._text;
}
set text(value) {
documents[activeDocument].addChange('startconnection', this.id, 'edit', ['_text'], [this._text], true);
this._text = value;
documents[activeDocument].addChange('startconnection', this.id, 'edit', ['_text'], [this._text]);
}
setAnchorPoint(x, y) {
this.deltaX = x - this.state.x;
this.deltaY = y - this.state.y;

15
js/components/state.js
View File

@ -10,7 +10,17 @@ class State {
this.isActive = false;
this.activeTime = 0;
this.isAcceptState = false;
this.text = '';
this._text = '';
}
get text() {
return this._text;
}
set text(value) {
documents[activeDocument].addChange('state', this.id, 'edit', ['_text'], [this._text], true);
this._text = value;
documents[activeDocument].addChange('state', this.id, 'edit', ['_text'], [this._text]);
}
setMouseStart(x, y) {
@ -58,7 +68,7 @@ class State {
}
ctx.fillStyle = settings.colors.getColor(this);
const width = ctx.measureText(this.text).width;
const width = ctx.measureText(convertLatexShortcuts(this.text)).width;
if(width < radius * .9)
ctx.drawText(this.text, this.x, this.y, null, selectedObject === this);
else
@ -134,5 +144,4 @@ class State {
containsPoint(x, y) {
return (x - this.x) ** 2 + (y - this.y) ** 2 < radius ** 2;
}
}

2
js/export/export.js
View File

@ -67,7 +67,7 @@ function parseFromJson(json) {
break;
case 'SelfConnection':
connection = Object.assign(new SelfConnection(null, {x: 0, y: 0}), connection);
connection = Object.assign(new SelfConnection(null), connection);
connection.state = doc.states.find(state => state.id === connection.state);

187
js/fsm-document.js Normal file
View File

@ -0,0 +1,187 @@
class FSMDocument {
constructor(name) {
this.id = guid();
this.name = name || null;
this.createdAt = Date.now();
this.lastModified = Date.now();
this.element = null;
this.unsaved = true;
this.lastSavedHash = '';
this.states = [];
this.connections = [];
this.changes = [];
this.changesIndex = -1;
}
physicsTick() {
this.states.forEach(stateA => {
this.states.forEach(stateB => {
if (stateA !== stateB && stateA.intersects(stateB)) {
const inter = stateA.intersection(stateB);
const angle1 = stateA.directionTo(stateB);
const angle2 = angle1 + Math.PI;
stateA.x += Math.cos(angle1) * inter;
stateA.y += Math.sin(angle1) * inter;
stateB.x += Math.cos(angle2) * inter;
stateB.y += Math.sin(angle2) * inter;
}
});
});
}
tick() {
this.states.forEach(state => {
if (state.v) {
state.moveToStep();
}
});
if (!this.unsaved) {
if (this.hashCode() !== this.lastSavedHash) {
this.unsaved = true;
this.element.classList.add('unsaved');
}
}
}
draw() {
this.states.forEach(state => state.draw());
this.connections.forEach(connection => connection.draw());
}
onDblClick(x, y) {
if (!selectedObject) {
selectedObject = new State(x, y);
this.states.push(selectedObject);
this.addChange('state', selectedObject.id, 'add', Object.keys(selectedObject), Object.values(selectedObject));
resetCaret();
} else if (selectedObject instanceof State) {
selectedObject.isAcceptState = !selectedObject.isAcceptState;
this.addChange('state', selectedObject.id, 'edit', ['isAcceptState'], [!selectedObject.isAcceptState]);
}
}
onRightClick(x, y) {
if (!selectedObject) {
}
}
deleteCurrentObject() {
if (!!selectedObject) {
if (selectedObject instanceof State) {
this.states.splice(this.states.findIndex(state => state === selectedObject), 1);
}
for (let i = 0; i < this.connections.length; i++) {
const con = this.connections[i];
if (con === selectedObject || con.state === selectedObject || con.stateA === selectedObject || con.stateB === selectedObject) {
this.connections.splice(i--, 1);
}
}
selectedObject = null;
}
}
addChange(objectType, id, action, fields, oldValues, tryCombiningChanges) {
if (this.changesIndex < this.changes.length - 1) {
this.changes.splice(this.changesIndex + 1, this.changes.length - this.changesIndex - 1);
}
if (tryCombiningChanges) {
let prevChange = this.changes[this.changesIndex];
while (!!prevChange && prevChange.type === objectType && prevChange.id === id && prevChange.action === action && prevChange.fields.length === fields.length) {
oldValues = prevChange.prevValues;
this.changes.splice(this.changesIndex, 1);
this.changesIndex--;
prevChange = this.changes[this.changesIndex];
}
}
this.changes.push({
type: objectType,
id,
action,
fields,
prevValues: oldValues,
date: Date.now()
});
this.changesIndex++;
}
undo(stepAmount) {
if (stepAmount === 0)
return;
const loopAmount = Math.abs(stepAmount);
const isRedo = stepAmount < 0;
for (let i = 0; i < loopAmount; i++) {
if (this.changes.length === 0 || (!isRedo && this.changesIndex < 0) || (isRedo && this.changesIndex >= this.changes.length - 1)) {
return;
}
let change;
if (isRedo) {
this.changesIndex++;
change = this.changes[this.changesIndex];
} else {
change = Object.assign({}, this.changes[this.changesIndex]);
this.changesIndex--;
change.action = change.action === 'add' ? 'remove' : change.action === 'remove' ? 'add' : 'edit';
}
if (change.type === 'state') {
if (change.action === 'remove') {
this.states.splice(this.states.findIndex(item => item.id === change.id), 1);
return;
}
let state;
if (change.action === 'add')
state = new State();
else if (change.action === 'edit')
state = this.states.find(item => item.id === change.id);
change.fields.forEach((field, index) => {
state[field] = change.prevValues[index];
});
if (change.action === 'add')
this.states.push(state);
}
if (change.type.indexOf('connection') !== -1) {
if (change.action === 'remove') {
this.connections.splice(this.connections.findIndex(item => item.id === change.id), 1);
return;
}
let connection;
if (change.action === 'add') {
if(change.type === 'startconnection')
connection = new StartConnection();
else if(change.type === 'selfconnection')
connection = new SelfConnection();
else
connection = new Connection();
} else if (change.action === 'edit') {
connection = this.connections.find(item => item.id === change.id);
}
change.fields.forEach((field, index) => {
connection[field] = change.prevValues[index];
});
if (change.action === 'add')
this.connections.push(connection);
}
}
}
}

389
js/main.js
View File

@ -1,7 +1,11 @@
const width = 800;
const height = 600;
let realWidth = 800;
let realHeight = 600;
const radius = 25;
const greekLetterNames = ['Alpha', 'Beta', 'Gamma', 'Delta', 'Epsilon', 'Zeta', 'Eta', 'Theta', 'Iota', 'Kappa', 'Lambda', 'Mu', 'Nu', 'Xi', 'Omicron', 'Pi', 'Rho', 'Sigma', 'Tau', 'Upsilon', 'Phi', 'Chi', 'Psi', 'Omega'];
const settings = {
physics: true,
speed: 2,
@ -10,23 +14,41 @@ const settings = {
colors: {
default: '#000',
active: '#00f',
selectionBg: 'rgba(0,0,255,.75)',
selectionText: '#ffffff',
gridColor: 'rgba(0,0,0,.15)',
getColor: (object) => selectedObject === object ? settings.colors.active : settings.colors.default
}
},
drawGrid: true,
snapToGrid: true,
gridSize: 100,
};
const elements = {
documents: document.getElementById('document-tabs'),
dragOverlay: document.getElementById('dragOverlay'),
};
const contextmenu = document.getElementById('contextmenuCanvas');
const canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');
canvas.width = width;
canvas.height = height;
function onResize() {
canvas.width = width * 2;
canvas.height = height * 2;
canvas.style.maxWidth = width + 'px';
canvas.style.height = canvas.clientWidth * height / width + 'px';
ctx.scale(2, 2);
realWidth = canvas.clientWidth;
realHeight = canvas.clientHeight;
}
const documents = [];
let activeDocument = null;
let assistantLines = [];
function switchDocument(doc) {
if (doc instanceof FSMDocument) {
doc = documents.findIndex(document => document.id === doc.id);
@ -106,6 +128,11 @@ const animations = [];
let isPaused = false;
function convertLatexShortcuts(text) {
greekLetterNames.forEach((name, i) => {
text = text.replace(new RegExp('\\\\' + name, 'g'), String.fromCharCode(913 + i + (i > 16)));
text = text.replace(new RegExp('\\\\' + name.toLowerCase(), 'g'), String.fromCharCode(945 + i + (i > 16)));
});
for (let i = 0; i < 10; i++) {
// TODO: Replace with more general way
text = text.replace(new RegExp('_' + i, 'g'), String.fromCharCode(8320 + i));
@ -116,7 +143,8 @@ function convertLatexShortcuts(text) {
let caretTimer,
caretVisible = true,
caretPos = 0;
caretPos = 0,
caretSelection = null;
function resetCaret() {
clearInterval(caretTimer);
@ -126,6 +154,9 @@ function resetCaret() {
function tick() {
if (activeDocument !== null) {
for (let i = 0; i < 10; i++) {
documents[activeDocument].physicsTick();
}
documents[activeDocument].tick();
}
@ -139,6 +170,22 @@ function draw() {
ctx.translate(0.5, 0.5);
if (activeDocument !== null) {
if (settings.drawGrid)
drawGrid();
assistantLines.forEach(line => {
ctx.strokeStyle = '#f0f';
ctx.beginPath();
if (!!line.x) {
ctx.moveTo(line.x, 0);
ctx.lineTo(line.x, height);
} else {
ctx.moveTo(0, line.y);
ctx.lineTo(width, line.y);
}
ctx.stroke();
});
documents[activeDocument].draw();
if (!!currentConnection) {
@ -160,6 +207,24 @@ function draw() {
setTimeout(draw, 1000 / 60);
}
function drawGrid() {
for (let i = settings.gridSize; i < width; i += settings.gridSize) {
ctx.strokeStyle = settings.colors.gridColor;
ctx.beginPath();
ctx.moveTo(i, 0);
ctx.lineTo(i, height);
ctx.stroke();
}
for (let i = settings.gridSize; i < height; i += settings.gridSize) {
ctx.strokeStyle = settings.colors.gridColor;
ctx.beginPath();
ctx.moveTo(0, i);
ctx.lineTo(width, i);
ctx.stroke();
}
}
function selectObject(x, y) {
if (activeDocument === null) {
return null;
@ -169,12 +234,14 @@ function selectObject(x, y) {
for (let state of doc.states) {
if (state.containsPoint(x, y)) {
caretPos = state.text.length;
return state;
}
}
for (let connection of doc.connections) {
if (connection.containsPoint(x, y)) {
caretPos = connection.text.length;
return connection;
}
}
@ -191,7 +258,10 @@ let cursorVisible = true,
originalClick = null,
deltaMouseX = 0,
deltaMouseY = 0,
shiftPressed = false;
shiftPressed = false,
ctrlPressed = false,
changedKeys = [],
changedValues = [];
canvas.addEventListener('mousedown', (event) => {
const mouse = cbRelMousePos(event);
@ -200,7 +270,7 @@ canvas.addEventListener('mousedown', (event) => {
originalClick = mouse;
if (!!selectedObject) {
if (shiftPressed && selectedObject instanceof State) {
if ((shiftPressed || event.shiftKey) && selectedObject instanceof State) {
currentConnection = new SelfConnection(selectedObject, mouse);
} else {
movingObject = true;
@ -210,7 +280,21 @@ canvas.addEventListener('mousedown', (event) => {
}
}
resetCaret();
} else if (shiftPressed) {
if (selectedObject instanceof SelfConnection) {
changedKeys = ['anchorAngle'];
changedValues = [selectedObject.anchorAngle];
} else if (selectedObject instanceof Connection) {
changedKeys = ['parallelPart', 'perpendicularPart'];
changedValues = [selectedObject.parallelPart, selectedObject.perpendicularPart];
} else if (selectedObject instanceof StartConnection) {
changedKeys = ['deltaX', 'deltaY'];
changedValues = [selectedObject.deltaX, selectedObject.deltaY];
} else if (selectedObject instanceof State) {
changedKeys = ['x', 'y'];
changedValues = [selectedObject.x, selectedObject.y];
}
} else if (shiftPressed || event.shiftKey) {
currentConnection = new TemporaryConnection(mouse, mouse);
}
@ -249,25 +333,52 @@ canvas.addEventListener('mousemove', (event) => {
}
if (movingObject) {
selectedObject.setAnchorPoint(mouse.x, mouse.y);
if (selectedObject instanceof State) {
if(ctrlPressed || event.ctrlKey) {
const prevX = changedValues[0];
const prevY = changedValues[1];
selectedObject.setAnchorPoint(mouse.x, mouse.y);
const deltaX = Math.abs(selectedObject.x - prevX);
const deltaY = Math.abs(selectedObject.y - prevY);
if(deltaX > deltaY) {
selectedObject.y = prevY;
} else {
selectedObject.x = prevX;
}
} else {
selectedObject.setAnchorPoint(mouse.x, mouse.y);
snapNode(selectedObject);
}
} else {
selectedObject.setAnchorPoint(mouse.x, mouse.y);
}
}
});
canvas.addEventListener('mouseup', () => {
document.addEventListener('mouseup', () => {
movingObject = false;
if (!!selectedObject && activeDocument !== null) {
if (selectedObject instanceof State) {
documents[activeDocument].addChange('state', selectedObject.id, 'edit', changedKeys, changedValues);
} else if (selectedObject instanceof Connection || selectedObject instanceof SelfConnection || selectedObject instanceof StartConnection) {
documents[activeDocument].addChange(selectedObject.constructor.name.toLowerCase(), selectedObject.id, 'edit', changedKeys, changedValues);
}
}
if (!!currentConnection && activeDocument !== null) {
if (!(currentConnection instanceof TemporaryConnection)) {
selectedObject = currentConnection;
documents[activeDocument].connections.push(currentConnection);
resetCaret();
documents[activeDocument].addChange(selectedObject.constructor.name.toLowerCase(), selectedObject.id, 'add', Object.keys(selectedObject), Object.values(selectedObject))
}
currentConnection = null;
}
assistantLines = [];
});
canvas.addEventListener('dblclick', (event) => {
@ -281,7 +392,11 @@ canvas.addEventListener('dblclick', (event) => {
documents[activeDocument].onDblClick(mouse.x, mouse.y);
});
canvas.addEventListener('contextmenu', (event) => {
document.addEventListener('click', (event) => {
contextmenu.style.display = 'none';
});
document.addEventListener('contextmenu', (event) => {
const mouse = cbRelMousePos(event);
event.preventDefault();
@ -289,9 +404,17 @@ canvas.addEventListener('contextmenu', (event) => {
if (activeDocument === null)
return;
selectedObject = selectObject(mouse.x, mouse.y);
// selectedObject = selectObject(mouse.x, mouse.y);
documents[activeDocument].onRightClick(mouse.x, mouse.y);
if (event.target === contextmenu || event.target === canvas) {
contextmenu.style.top = event.y + 'px';
contextmenu.style.left = event.x + 'px';
contextmenu.style.display = 'block';
} else {
contextmenu.style.display = 'none';
}
// documents[activeDocument].onRightClick(mouse.x, mouse.y);
});
document.addEventListener('keydown', (event) => {
@ -307,9 +430,24 @@ document.addEventListener('keydown', (event) => {
break;
case 8: // Backspace
if (!!selectedObject) {
selectedObject.text = selectedObject.text.substr(0, caretPos - 1) + selectedObject.text.substr(caretPos, selectedObject.text.length);
let start = caretPos - 1;
let end = caretPos;
if (caretSelection !== null) {
if (caretSelection < caretPos) {
start = caretSelection;
} else {
start = caretPos;
end = caretSelection;
}
caretSelection = null;
} else {
caretPos--;
caretPos = Math.max(caretPos, 0);
}
selectedObject.text = selectedObject.text.slice(0, start) + selectedObject.text.slice(end, selectedObject.text.length);
resetCaret();
}
@ -318,36 +456,60 @@ document.addEventListener('keydown', (event) => {
return false;
case 37: // Left Arrow
if (!(event.ctrlKey || event.metaKey) && !!selectedObject) {
if ((shiftPressed || event.shiftKey) && caretSelection === null)
caretSelection = caretPos;
caretPos--;
caretPos = Math.max(caretPos, 0);
resetCaret();
if (!(shiftPressed || event.shiftKey) || caretSelection === caretPos)
caretSelection = null;
return false;
}
break;
case 39: // Right Arrow
if (!(event.ctrlKey || event.metaKey) && !!selectedObject) {
if ((shiftPressed || event.shiftKey) && caretSelection === null)
caretSelection = caretPos;
caretPos++;
caretPos = Math.min(caretPos, selectedObject.text.length);
resetCaret();
if (!(shiftPressed || event.shiftKey) || caretSelection === caretPos)
caretSelection = null;
return false;
}
break;
case 36: // Home
if (!(event.ctrlKey || event.metaKey) && !!selectedObject) {
if ((shiftPressed || event.shiftKey) && caretSelection === null)
caretSelection = caretPos;
caretPos = 0;
resetCaret();
if (!(shiftPressed || event.shiftKey) || caretSelection === caretPos)
caretSelection = null;
return false;
}
break;
case 35: // End
if (!(event.ctrlKey || event.metaKey) && !!selectedObject) {
if ((shiftPressed || event.shiftKey) && caretSelection === null)
caretSelection = caretPos;
caretPos = selectedObject.text.length;
if (!(shiftPressed || event.shiftKey) || caretSelection === caretPos)
caretSelection = null;
return false;
}
@ -376,13 +538,23 @@ document.addEventListener('keypress', (event) => {
}
if (!!selectedObject && 'text' in selectedObject) {
const text = selectedObject.text;
if (!event.metaKey && !event.altKey && !event.ctrlKey) {
if (key >= 0x20 && key <= 0x7E) {
selectedObject.text = text.substring(0, caretPos) + String.fromCharCode(key) + text.substring(caretPos, text.length);
let text = selectedObject.text;
if (caretSelection !== null) {
if (caretSelection > caretPos) {
text = text.slice(0, caretPos) + text.slice(caretSelection, text.length);
} else {
text = text.slice(0, caretSelection) + text.slice(caretPos, text.length);
caretPos = caretSelection;
}
caretSelection = null;
}
text = text.substring(0, caretPos) + String.fromCharCode(key) + text.substring(caretPos, text.length);
caretPos++;
resetCaret();
selectedObject.text = text;
return false;
}
@ -390,10 +562,34 @@ document.addEventListener('keypress', (event) => {
}
if (key === 8) {
selectedObject = null;
return false;
}
});
document.addEventListener('paste', (event) => {
if (activeDocument !== null && selectedObject !== null) {
const pastedText = event.clipboardData.getData('text/plain');
let start = caretPos;
let end = caretPos;
if (caretSelection !== null) {
if (caretSelection < caretPos) {
start = caretSelection;
caretPos = caretSelection;
} else {
end = caretSelection;
}
caretSelection = null;
}
selectedObject.text = selectedObject.text.slice(0, start) + pastedText + selectedObject.text.slice(end, selectedObject.text.length);
caretPos += pastedText.length;
}
});
window.addEventListener('keydown', (event) => {
const keyCode = crossBrowserKey(event);
const key = String.fromCharCode(keyCode).toLowerCase();
@ -408,6 +604,34 @@ window.addEventListener('keydown', (event) => {
return false;
}
if ((event.ctrlKey || event.metaKey) && key === 'z') { // Ctrl + Z
if (activeDocument !== null) {
documents[activeDocument].undo(1);
event.preventDefault();
return false;
}
}
if ((event.ctrlKey || event.metaKey) && key === 'y') { // Ctrl + Y
if (activeDocument !== null) {
documents[activeDocument].undo(-1);
event.preventDefault();
return false;
}
}
if ((event.ctrlKey || event.metaKey) && key === 'a') { // Ctrl + A
if (activeDocument !== null && selectedObject !== null) {
caretPos = selectedObject.text.length;
caretSelection = 0;
event.preventDefault();
return false;
}
}
if ((event.ctrlKey || event.metaKey) && key === 'e') { // Ctrl + E
modalExport.open();
@ -415,6 +639,15 @@ window.addEventListener('keydown', (event) => {
return false;
}
if ((event.ctrlKey || event.metaKey) && key === 'n') { // Ctrl + N
const doc = new FSMDocument();
addDocument(doc);
switchDocument(doc);
event.preventDefault();
return false;
}
if ((event.ctrlKey || event.metaKey) && keyCode === 37) { // Ctrl + LeftArrow
let activeDoc = activeDocument;
activeDoc--;
@ -438,6 +671,19 @@ window.addEventListener('keydown', (event) => {
}
});
let prevSelectedObject;
window.addEventListener('blur', () => {
prevSelectedObject = selectedObject;
currentConnection = null;
selectedObject = null;
shiftPressed = false;
});
window.addEventListener('focus', (s) => {
selectedObject = prevSelectedObject;
resetCaret();
});
CanvasRenderingContext2D.prototype.drawArrow = function (x, y, angle) {
const dx = Math.cos(angle);
const dy = Math.sin(angle);
@ -474,19 +720,65 @@ CanvasRenderingContext2D.prototype.drawText = function (originalText, x, y, angl
} else {
x = Math.round(x);
y = Math.round(y);
this.fillText(text, x, y + 6);
if (isSelected && caretVisible && canvasHasFocus() && document.hasFocus()) {
x += this.measureText(text.substring(0, caretPos)).width;
let drawText = true;
if (isSelected && canvasHasFocus() && document.hasFocus()) {
const caretX = x + this.measureText(text.substring(0, caretPos)).width;
if (caretSelection !== null && caretPos !== caretSelection) {
drawText = false;
const selectionX = x + this.measureText(text.substring(0, caretSelection)).width;
ctx.fillStyle = settings.colors.selectionBg;
this.beginPath();
this.moveTo(x, y - 10);
this.lineTo(x, y + 10);
this.moveTo(selectionX, y - 10);
this.lineTo(selectionX, y + 10);
this.lineTo(caretX, y + 10);
this.lineTo(caretX, y - 10);
this.closePath();
this.fill();
let start = caretPos;
let end = caretSelection;
if (caretSelection < caretPos) {
[start, end] = [end, start];
}
const prevText = text.substring(0, start);
const selectedText = text.substring(start, end);
const followingText = text.substring(end, text.length);
let textX = x;
const textY = y + 6;
ctx.fillStyle = settings.colors.active;
this.fillText(prevText, textX, textY);
textX += this.measureText(prevText).width;
ctx.fillStyle = settings.colors.selectionText;
this.fillText(selectedText, textX, textY);
textX += this.measureText(selectedText).width;
ctx.fillStyle = settings.colors.active;
this.fillText(followingText, textX, textY);
}
if (caretVisible) {
this.beginPath();
this.moveTo(caretX, y - 10);
this.lineTo(caretX, y + 10);
this.stroke();
this.closePath();
}
}
if (drawText)
this.fillText(text, x, y + 6);
}
};
Node.prototype.addChild = function (name, classList, text) {
@ -508,16 +800,51 @@ Node.prototype.addChild = function (name, classList, text) {
};
function snapNode(targetState) {
let snapX = false,
snapY = false;
assistantLines = [];
for (let state of documents[activeDocument].states) {
if (state === targetState)
continue;
if (Math.abs(targetState.x - state.x) < settings.snapToPadding) {
if (!snapX && Math.abs(targetState.x - state.x) < settings.snapToPadding) {
targetState.x = state.x;
assistantLines.push({x: state.x});
snapX = true;
}
if (Math.abs(targetState.y - state.y) < settings.snapToPadding) {
if (!snapY && Math.abs(targetState.y - state.y) < settings.snapToPadding) {
targetState.y = state.y;
assistantLines.push({y: state.y});
snapY = true;
}
if (snapX && snapY)
return;
}
if (settings.drawGrid && settings.snapToGrid) {
for (let i = 100; i < width; i += 100) {
if (!snapX && Math.abs(targetState.x - i) < settings.snapToPadding) {
targetState.x = i;
assistantLines.push({x: i});
snapX = true;
}
if (snapX && snapY)
return;
}
for (let i = settings.gridSize; i < height; i += settings.gridSize) {
if (!snapY && Math.abs(targetState.y - i) < settings.snapToPadding) {
targetState.y = i;
assistantLines.push({y: i});
snapY = true;
}
if (snapX && snapY)
return;
}
}
}
@ -556,8 +883,8 @@ function cbRelMousePos(event) {
const elem = cbElementPos(event),
mouse = cbMousePos(event);
return {
x: mouse.x - elem.x,
y: mouse.y - elem.y,
x: (mouse.x - elem.x) / realWidth * width,
y: (mouse.y - elem.y) / realHeight * height,
};
}
@ -573,6 +900,7 @@ function guid() {
}
window.addEventListener('load', () => {
onResize();
const doc = new FSMDocument('Dokument1');
addDocument(doc);
switchDocument(doc);
@ -581,6 +909,17 @@ window.addEventListener('load', () => {
draw();
});
window.addEventListener('beforeunload', (e) => {
if (!!documents.find(item => item.unsaved)) {
e.preventDefault();
e.returnValue('');
}
});
window.addEventListener('resize', () => {
onResize();
});
Object.prototype.hashCode = function () {
let baseString = '';
Object.values(this).forEach(entry => {

60
js/menu.js
View File

@ -44,8 +44,10 @@ const modalOpen = new tingle.modal({
const modalExport = new tingle.modal({
footer: true,
beforeOpen: () => {
setTimeout(() => {
const el = document.getElementById('previewImage');
el.src = canvas.toDataURL('image/png');
}, 100);
}
});
modalExport.setContent('<h3>Dokument exportieren</h3><img src="" id="previewImage">');
@ -70,6 +72,7 @@ modalImport.addFooterBtn('Laden', 'btn', () => {
const file = el.files[0];
if (file) {
console.log(file.type);
const reader = new FileReader();
// TODO: Check for file type etc.
reader.readAsText(file, 'UTF-8');
@ -89,11 +92,12 @@ modalImport.addFooterBtn('Laden', 'btn', () => {
const modalSimulate = new tingle.modal({
footer: true,
});
modalSimulate.setContent('<h3>Maschine simulieren</h3> <label for="simulationInput">Eingabe</label> <input type="text" id="simulationInput">');
modalSimulate.setContent('<h3>Maschine simulieren</h3> <label for="singleCharMode"><input type="checkbox" id="singleCharMode" checked> Eingabe einzelner Buchstaben</label> <br> <label for="simulationInput">Eingabe</label> <input type="text" id="simulationInput">');
modalSimulate.addFooterBtn('Simulation starten', 'btn', () => {
modalSimulate.close();
const input = document.getElementById('simulationInput').value;
simulate(input);
const singleCharMode = document.getElementById('singleCharMode').checked;
simulate(input, singleCharMode);
});
document.getElementById('saveBtn').addEventListener('click', () => {
@ -109,23 +113,75 @@ document.getElementById('saveBtn').addEventListener('click', () => {
});
document.getElementById('addBtn').addEventListener('click', () => {
selectedObject = null;
currentConnection = null;
const doc = new FSMDocument(null);
addDocument(doc);
switchDocument(doc);
});
document.getElementById('openBtn').addEventListener('click', () => {
selectedObject = null;
currentConnection = null;
modalOpen.open();
});
document.getElementById('importBtn').addEventListener('click', () => {
selectedObject = null;
currentConnection = null;
modalImport.open();
});
document.getElementById('exportBtn').addEventListener('click', () => {
selectedObject = null;
currentConnection = null;
modalExport.open();
});
document.getElementById('simulateBtn').addEventListener('click', () => {
selectedObject = null;
currentConnection = null;
modalSimulate.open();
});
document.addEventListener('dragover', (event) => {
elements.dragOverlay.classList.add('visible');
event.preventDefault();
});
document.addEventListener('dragexit', (event) => {
elements.dragOverlay.classList.remove('visible');
});
document.addEventListener('drop', (event) => {
const item = event.dataTransfer.items[0];
if (item.kind === 'file') {
const file = item.getAsFile();
const lastDot = file.name.lastIndexOf('.');
const ext = file.name.slice(lastDot + 1);
if (ext === 'fsm') {
const reader = new FileReader();
reader.readAsText(file, 'UTF-8');
reader.onload = (evt) => {
const json = evt.target.result;
// TODO: Add error handling
try {
importFromJson(json);
} catch (e) {
alert('Ein Fehler ist beim Einlesen der Datei aufgetreten. Die Datei scheint nicht im richtigen Format zu sein.')
}
};
reader.onerror = (evt) => {
alert('Ein Fehler beim Einlesen der Datei ist aufgetreten. Womöglich muss hier ein Bug behoben werden... :(');
};
} else {
alert('Dieses Dateiformat wird nicht unterstützt.')
}
}
elements.dragOverlay.classList.remove('visible');
event.preventDefault();
return false;
});

3
js/simulate.js
View File

@ -1,8 +1,7 @@
let simulationStates = [];
let singleCharMode = true;
let simulationStepDuration = 500;
function simulate(word) {
function simulate(word, singleCharMode = true) {
if(activeDocument === null) {
return false;
}