Update README with the pdfGeneration Lib

Author: pablog178

README.md

@@ -15,7 +15,9 @@ Titanium Native Module (Android) and libraries for generating PDF files based on
 	* `pdfGeneration.js` depends on [mustache.js](https://github.com/janl/mustache.js) for parsing templates.
 * For iOS, [NappPDFCreator](https://github.com/viezel/NappPDFCreator) is recommended
 
-## Basic Usage
+##PDFCreator Module
+
+### Basic Usage
 1. Make sure you have the module dependency added on `tiapp.xml`
 
 	```xml
@@ -36,7 +38,7 @@ Titanium Native Module (Android) and libraries for generating PDF files based on
 	* `generatePDFWithHTML()` -  Parses some HTML string and creates a PDF file from it. Use `XMLWorker` for it. PDF files have the best quality but not all HTML/CSS properties are supported yet.
 	* `generatePDFwithWebView()` - Takes a screenshot from a given `Ti.UI.WebView` and divides the resulting image into several pages. PDF files have medium quality and use a lot of space on disk, but supports all the HTML/CSS properties available.
 
-## Example
+### Example
 ```javascript
 var PdfCreator = require('com.propelics.pdfcreator');
 
@@ -71,3 +73,70 @@ webview.addEventListener('load', function (e) {
 
 webview.url = 'www.apple.com';
 ```
+
+## PDFGeneration lib
+
+### Basic Usage
+* This lib is intended to handle the common use cases for the PDF module creation. Therefore it depends on the `PDFCreator` module.
+* Add `pdfGeneration.js` and `mustache.js` under `app/lib` (for Alloy projects).
+* 2 functions are included to generate the PDF files
+	* `generateWithWebView()` - Generates a PDF file based on an HTML File using a webview to load it's data. **It does NOT use `PDFCreator.generatePDFwithWebView()`** 
+	* `generatePDFWithTemplate()` - Generates a PDF file based on an HTML Template, will load using `mustache.js`
+* Both functions take a set of options to generate the PDF.
+	* `htmlFile` - File object to load that includes the HTML file to parse
+	* `data` - Dictionary with data to be parsed inside the HTML before generating the PDF
+	* `sucessCallback` - Function called when the PDF gets generated
+	* `failCallback` - Function called if an error occurs
+
+### Example
+```javascript
+var PdfGeneration = require('pdfGeneration');
+
+// Workaround to load images
+var imageFile = Ti.Filesystem.getFile(Ti.Filesystem.resourcesDirectory, 'image.jpg');
+var imgTemp = Ti.Filesystem.createTempFile();
+imgTemp.write(imageFile.read());
+
+PdfGeneration.generateWithWebView({
+	// Name of the PDF file to create
+	pdfFileName : 'webview',
+	// File containing the html to load
+	htmlFile : Ti.Filesystem.getFile(Ti.Filesystem.resourcesDirectory, 'webview.html'),
+	// A view to contain the Webview (should be inside an opened Window)
+	wrapper : $.index,
+	// Data to parse
+	data : {
+		customerName : 'John Doe',
+		image : imgTemp.resolve().replace('file:', '')
+	},
+	successCallback : function (_data) {
+		// The PDF was created
+	},
+	failCallback : function (_data) {
+		// An error occured
+	}
+});
+
+PdfGeneration.generatePDFWithTemplate({
+	// Name of the PDF file to create
+	pdfFileName : 'template',
+	// File containing the html to load
+	htmlFile : Ti.Filesystem.getFile(Ti.Filesystem.resourcesDirectory, 'template.html'),
+	// Data to parse
+	data : {
+		customerName : 'John Doe',
+		image : imgTemp.resolve().replace('file:', '')
+	},
+	successCallback : function (_data) {
+		// The PDF was created
+	},
+	failCallback : function (_data) {
+		// An error occured
+	}
+});
+```
+
+### Notes for loaing PDF files
+* In order to load images, the absolute path for the images is needed under the `src` attribute.
+* CSS styles should be loaded within the HTML file.
+* Only the system fonts are supported. If the `font-face` includes an specific name, it will take more time to load that using `serif` or `sans-serif`