text-overlay in Node (#1125)

* text-overlay in node

* text-overlay in node

* docs added

docs/MODULES.md

@@ -40,6 +40,7 @@ List of Module Documentations
 35. [ColorTemperature](#color-temperature)
 36. [Grid-Overlay](#grid-overlay)
 37. [MinifyImage](#minify-image)
+38. [Text-Overlay](#text-overlay)
 
 
 ## crop-module
@@ -615,4 +616,18 @@ The module supports jpg/jpeg/webp images in browser; but the node version suppor
 sequencer.loadImage('PATH')
            .addSteps('minify-image')
            .run()
-```
+```
+# Text Overlay
+
+The modules allows to add text to image in both browser and node environment. We have the options to modify the font-size and also support few font-styles. The text color can also be modified.
+
+## Usage
+
+```js
+  sequencer.loadImage('PATH')
+           .addSteps('grid-overlay',options)
+           .run()
+```
+The options can take various attributes like,
+```
+var options = { text : 'Hello World', size : '12'};

src/modules/TextOverlay/Module.js

@@ -3,44 +3,36 @@ module.exports = function TextOverlay(options, UI) {
 
   var output;
 
-  function draw(input, callback, progressObj) {
-
-    progressObj.stop(true);
-    progressObj.overrideFlag = true;
+  function draw(input, callback) {
 
     var step = this;
-    if (!options.step.inBrowser) { // This module is only for browser
-      this.output = input;
-      callback();
+
+    var priorStep = this.getStep(-1); // get the previous step to add text onto it.
+
+    function extraManipulation(pixels) {
+      //if (options.step.inBrowser)
+      pixels = require('./TextOverlay')(pixels, options, priorStep);
+      return pixels;
     }
-    else {
-      var priorStep = this.getStep(-1); // get the previous step to add text onto it.
 
-      function extraManipulation(pixels) {
-        //if (options.step.inBrowser)
-        pixels = require('./TextOverlay')(pixels, options, priorStep);
-        return pixels;
-      }
+    function output(image, datauri, mimetype) {
 
-      function output(image, datauri, mimetype) {
-
-        // This output is accesible by Image Sequencer
-        step.output = { src: datauri, format: mimetype };
-
-      }
-
-      return require('../_nomodule/PixelManipulation.js')(input, {
-        output: output,
-        ui: options.step.ui,
-        extraManipulation: extraManipulation,
-        format: input.format,
-        image: options.image,
-        inBrowser: options.inBrowser,
-        callback: callback,
-        useWasm:options.useWasm
-      });
+      // This output is accesible by Image Sequencer
+      step.output = { src: datauri, format: mimetype };
 
     }
+
+    return require('../_nomodule/PixelManipulation.js')(input, {
+      output: output,
+      ui: options.step.ui,
+      extraManipulation: extraManipulation,
+      format: input.format,
+      image: options.image,
+      inBrowser: options.inBrowser,
+      callback: callback,
+      useWasm:options.useWasm
+    });
+
   }
 
   return {

src/modules/TextOverlay/TextOverlay.js

@@ -1,4 +1,7 @@
 module.exports = exports = function(pixels, options, priorstep){
+
+  var $ = require('jquery'); // to make text-overlay work for node.js
+
   var defaults = require('./../../util/getDefaults.js')(require('./info.json'));
 
   options.text = options.text || defaults.text;

src/modules/TextOverlay/info.json

@@ -40,6 +40,5 @@
             "desc": "Enter the font size in pixels.",
             "default": "12"
         }
-    },
-    "only": "browser" 
+    }
 }