From 49a2f3b80e2f397cd378b043af0b500e897e8858 Mon Sep 17 00:00:00 2001
From: David Henderson <david.henderson@triggeredmessaging.com>
Date: Wed, 24 Jun 2015 17:10:25 +0100
Subject: [PATCH] Added image quality parameter to renderBuffer

---
 examples/snap_service.js | 10 ++++++++--
 src/webpage.cpp          |  4 ++--
 src/webpage.h            |  2 +-
 3 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/examples/snap_service.js b/examples/snap_service.js
index a2893b7bb5..97a34e6860 100644
--- a/examples/snap_service.js
+++ b/examples/snap_service.js
@@ -13,13 +13,16 @@ if (system.args.length !== 2) {
         console.log(JSON.stringify(request, null, 4));
 
         var url = null,
-            format = 'png';
+            format = 'png',
+            quality = -1;
 
         if (request.query) {
             if (request.query.url)
                 url = request.query.url;
             if (request.query.format)
                 format = request.query.format;
+            if (request.query.quality)
+                quality = request.query.quality *1;
         }
 
         if (request.post) {
@@ -27,10 +30,13 @@ if (system.args.length !== 2) {
                 url = request.post.url;
             if (request.post.format)
                 format = request.post.format;
+            if (request.post.quality)
+                quality = request.post.quality *1;
         }
 
         console.log("URL:", url);
         console.log("Format:", format);
+        console.log("Quality:", quality);
 
         if (!url || url.length == 0) {
             response.write("");
@@ -47,7 +53,7 @@ if (system.args.length !== 2) {
             page.open(url, function start(status) {
 
                 // Buffer is an Uint8ClampedArray
-                var buffer = page.renderBuffer(format);
+                var buffer = page.renderBuffer(format, quality);
 
                 response.statusCode = 200;
                 response.setEncoding('binary');
diff --git a/src/webpage.cpp b/src/webpage.cpp
index 8a38b57f92..3a215c24c6 100644
--- a/src/webpage.cpp
+++ b/src/webpage.cpp
@@ -1019,7 +1019,7 @@ QString WebPage::renderBase64(const QByteArray &format)
     return "";
 }
 
-QByteArray WebPage::renderBuffer(const QByteArray &format)
+QByteArray WebPage::renderBuffer(const QByteArray &format, const int quality)
 {
     QByteArray nformat = format.toLower();
 
@@ -1033,7 +1033,7 @@ QByteArray WebPage::renderBuffer(const QByteArray &format)
         buffer.open(QIODevice::WriteOnly);
 
         // Writing image to the buffer, using PNG encoding
-        rawPageRendering.save(&buffer, nformat);
+        rawPageRendering.save(&buffer, nformat, quality);
 
         return bytes;
     }
diff --git a/src/webpage.h b/src/webpage.h
index a17c274edf..81b9e77962 100644
--- a/src/webpage.h
+++ b/src/webpage.h
@@ -276,7 +276,7 @@ public slots:
      * @return Rendering base-64 encoded of the page if the given format is supported, otherwise an empty string
      */
     QString renderBase64(const QByteArray &format = "png");
-    QByteArray renderBuffer(const QByteArray &format = "png");
+    QByteArray renderBuffer(const QByteArray &format = "png", const int quality = -1);
     bool injectJs(const QString &jsFilePath);
     void _appendScriptElement(const QString &scriptUrl);
     QObject *_getGenericCallback();