Experimenting with a new version

Yomguithereal · Yomguithereal · commit 0c64e71ccfaa · 2016-09-11T18:59:09.000+02:00
diff --git a/package.json b/package.json
@@ -4,6 +4,7 @@
   "description": "A JavaScript library dedicated to graph drawing.",
   "homepage": "http://sigmajs.org",
   "bugs": "http://github.com/jacomyal/sigma.js/issues",
+  "main": "dist/sigma.js",
   "repository": {
     "type": "git",
     "url": "http://github.com/jacomyal/sigma.js.git"
@@ -19,8 +20,8 @@
     }
   ],
   "license": "MIT",
-  "main": "build/sigma.require.js",
   "devDependencies": {
+    "graphology": "0.0.4",
     "mocha": "^3.0.2"
   },
   "keywords": [
diff --git a/src/camera.js b/src/camera.js
@@ -0,0 +1,22 @@
+/**
+ * Sigma.js Camera Class
+ * ======================
+ *
+ * Class designed to store camera information & used to update it.
+ */
+
+/**
+ * Camera class
+ *
+ * @constructor
+ */
+export default class Camera {
+  constructor() {
+
+    // Properties
+    this.x = 0;
+    this.y = 0;
+    this.angle = 0;
+    this.ratio = 0;
+  }
+}
diff --git a/src/sigma.js b/src/sigma.js
@@ -0,0 +1,53 @@
+/**
+ * Sigma.js Core Class
+ * ====================
+ *
+ * Core class holding state for the bound graph and using a combination of
+ * a renderer & camera to display the bound graph on screen.
+ */
+import Camera from './camera';
+import {isGraph} from './utils';
+
+// TODO: possibility to pass a camera
+
+/**
+ * Sigma class
+ *
+ * @constructor
+ * @param {Graph} graph - A graphology Graph instance.
+ */
+export default class Sigma {
+  constructor(graph) {
+
+    // Checking the arguments
+    if (!isGraph(graph))
+      throw new Error('Sigma.constructor: given graph is not an instance of a graphology implementation.');
+
+    // Properties
+    this.graph = graph;
+    this.camera = new Camera();
+  }
+
+  /**---------------------------------------------------------------------------
+   * Getters
+   **---------------------------------------------------------------------------
+   */
+
+  /**
+   * Method returning the graph bound to the instance.
+   *
+   * @return {Graph} - The bound graph.
+   */
+  getGraph() {
+    return this.graph;
+  }
+
+  /**
+   * Method returning the instance's camera.
+   *
+   * @return {Camera} - The instance's graph.
+   */
+  getCamera() {
+    return this.camera;
+  }
+}
diff --git a/src/utils.js b/src/utils.js
@@ -0,0 +1,21 @@
+/**
+ * Sigma.js Utils
+ * ===============
+ *
+ * Various helper functions & classes used throughout the library.
+ */
+
+/**
+ * Function returning whether the given value is a graphology Graph instance.
+ *
+ * @param  {any} value - Target value.
+ * @return {boolean}
+ */
+export function isGraph(value) {
+  return (
+    value &&
+    typeof value === 'object' &&
+    typeof value.addUndirectedEdgeWithKey === 'function' &&
+    typeof value.dropNodes === 'function'
+  );
+}
