From d3246b43683db95f98899c674adfaf760d06ec51 Mon Sep 17 00:00:00 2001
From: RKrom <robin@getgreenshot.org>
Date: Tue, 20 Mar 2012 17:04:41 +0000
Subject: [PATCH] Added auto reduction test as a property, so we can turn it
 off if the results are contra productive. Updated the readme.txt

git-svn-id: http://svn.code.sf.net/p/greenshot/code/trunk@1714 7dccd23d-a4a3-4e1f-8c07-b4c1b4018ab4
---
 Greenshot/Helpers/ImageOutput.cs              | 28 +++++++++++--------
 .../releases/additional_files/readme.txt      |  4 +--
 GreenshotPlugin/Core/CoreConfiguration.cs     |  2 ++
 3 files changed, 20 insertions(+), 14 deletions(-)

diff --git a/Greenshot/Helpers/ImageOutput.cs b/Greenshot/Helpers/ImageOutput.cs
index a153ea201..262218afc 100644
--- a/Greenshot/Helpers/ImageOutput.cs
+++ b/Greenshot/Helpers/ImageOutput.cs
@@ -100,19 +100,23 @@ namespace Greenshot.Helpers {
 					break;
 			}
 
-			// If Quantizing is enable, overwrite the image to save with a 256 - color version
-			IColorQuantizer quantizer = ImageHelper.PrepareQuantize((Bitmap)imageToSave);
-			int colorCount = quantizer.GetColorCount();
-			LOG.InfoFormat("Image with format {0} has {1} colors", imageToSave.PixelFormat, colorCount);
-			if (reduceColors || colorCount < 256) {
-				try {
-					LOG.Info("Reducing colors on bitmap to 255.");
-					imageToSave = ImageHelper.Quantize((Bitmap)imageToSave, quantizer, 255);
-					// Make sure the "new" image is disposed
-					disposeImage = true;
-				} catch(Exception e) {
-					LOG.Warn("Error occurred while Quantizing the image, ignoring and using original. Error: ", e);
+			// check for color reduction, forced or automatically
+			if (conf.OutputFileAutoReduceColors || reduceColors) {
+				IColorQuantizer quantizer = ImageHelper.PrepareQuantize((Bitmap)imageToSave);
+				int colorCount = quantizer.GetColorCount();
+				LOG.InfoFormat("Image with format {0} has {1} colors", imageToSave.PixelFormat, colorCount);
+				if (reduceColors || colorCount < 256) {
+					try {
+						LOG.Info("Reducing colors on bitmap to 255.");
+						imageToSave = ImageHelper.Quantize((Bitmap)imageToSave, quantizer, 255);
+						// Make sure the "new" image is disposed
+						disposeImage = true;
+					} catch (Exception e) {
+						LOG.Warn("Error occurred while Quantizing the image, ignoring and using original. Error: ", e);
+					}
 				}
+			} else {
+				LOG.Info("Skipping color reduction test, OutputFileAutoReduceColors is set to false.");
 			}
 
 			try {
diff --git a/Greenshot/releases/additional_files/readme.txt b/Greenshot/releases/additional_files/readme.txt
index 1f3509da4..54555fb7f 100644
--- a/Greenshot/releases/additional_files/readme.txt
+++ b/Greenshot/releases/additional_files/readme.txt
@@ -3,7 +3,7 @@ Greenshot: A screenshot tool optimized for productivity. Save a screenshot or a
 
 CHANGE LOG:
 
-0.9.0 Build 1667
+0.9.0 Build 1714
 
 We changed the version to 0.9.0 as the amount of features in 0.8.1 was more than planned.
 
@@ -25,7 +25,7 @@ Features added:
 * Added Ctrl/shift logic to the editor, hard to explain (see help) but hold one of the keys down and draw..
 * Added a color picker in the color dialog.
 * Added shadow & torn edges
-
+* Added color reduction as an option and auto detection for image with less than 256 color. When using reduction this results in smaller files.
 
 0.8.1 Build 1483
 
diff --git a/GreenshotPlugin/Core/CoreConfiguration.cs b/GreenshotPlugin/Core/CoreConfiguration.cs
index bd1f31397..8d5c50e3a 100644
--- a/GreenshotPlugin/Core/CoreConfiguration.cs
+++ b/GreenshotPlugin/Core/CoreConfiguration.cs
@@ -92,6 +92,8 @@ namespace GreenshotPlugin.Core {
 		public OutputFormat OutputFileFormat = OutputFormat.png;
 		[IniProperty("OutputFileReduceColors", Description="If set to true, than the colors of the output file are reduced to 256 (8-bit) colors", DefaultValue="false")]
 		public bool OutputFileReduceColors;
+		[IniProperty("OutputFileAutoReduceColors", Description = "If set to true the amount of colors is counted and if smaller than 256 the color reduction is automatically used.", DefaultValue = "true")]
+		public bool OutputFileAutoReduceColors;
 
 		[IniProperty("OutlookEmailFormat", Description = "Default type for emails. (Text, HTML)", DefaultValue="HTML")]
 		public EmailFormat OutlookEmailFormat;