From bacc1b3567e0cf6bff2862e31bccb981e4f243c3 Mon Sep 17 00:00:00 2001
From: Jan Philipp Timme <jan.philipp@timme.it>
Date: Fri, 13 Nov 2015 15:11:43 +0100
Subject: [PATCH] [TASK] Add small histogramm for original image, too.

---
 imageviewer-qt4.cpp | 12 ++++++++++--
 imageviewer-qt4.h   |  1 +
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/imageviewer-qt4.cpp b/imageviewer-qt4.cpp
index b6ee12f..8024af7 100644
--- a/imageviewer-qt4.cpp
+++ b/imageviewer-qt4.cpp
@@ -196,6 +196,7 @@ void ImageViewer::analyzeImage() {
     QString result = QString("Intensity: Average: %1, Variance: %2").arg(working_copy->getIntensityAverage()).arg(working_copy->getIntensityVariance());
     stats->setText(result);
     histogramm_label->setPixmap(QPixmap::fromImage(*(working_copy->getHistogrammImage())));
+    original_histogramm_label->setPixmap(QPixmap::fromImage(*(original->getHistogrammImage())));
   }
 }
 
@@ -368,6 +369,11 @@ void ImageViewer::generateControlPanels() {
   task_tab2 = new QVBoxLayout();
   task_tab_widget2->setLayout(task_tab2);
  
+  original_histogramm_label = new QLabel();
+  original_histogramm_label->setBackgroundRole(QPalette::Base);
+  original_histogramm_label->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding);
+  original_histogramm_label->setScaledContents(false);
+  
   histogramm_label = new QLabel();
   histogramm_label->setBackgroundRole(QPalette::Base);
   histogramm_label->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding);
@@ -377,7 +383,7 @@ void ImageViewer::generateControlPanels() {
   stats->setText("Intensity will be shown here.");
   
   analyze_image = new QPushButton();
-  analyze_image->setText("Analyze image");
+  analyze_image->setText("Update image statistics, redraw histogramms.");
   QObject::connect(analyze_image, SIGNAL(clicked()), this, SLOT(analyzeImage()));
 
   brightness_slider = new QSlider(Qt::Horizontal);
@@ -401,7 +407,9 @@ void ImageViewer::generateControlPanels() {
   QObject::connect(automatic_robust_contrast, SIGNAL(clicked()), this, SLOT(robustAutomaticContrastAdaption()));
   
   task_tab2->addWidget(stats);
-  task_tab2->addWidget(new QLabel("Histogramm"));
+  task_tab2->addWidget(new QLabel("Histogramm of original image"));
+  task_tab2->addWidget(original_histogramm_label);
+  task_tab2->addWidget(new QLabel("Histogramm of working copy"));
   task_tab2->addWidget(histogramm_label);
   task_tab2->addWidget(analyze_image);
   task_tab2->addWidget(new QLabel("Brightness"));
diff --git a/imageviewer-qt4.h b/imageviewer-qt4.h
index 48df285..5e61efd 100644
--- a/imageviewer-qt4.h
+++ b/imageviewer-qt4.h
@@ -88,6 +88,7 @@ class ImageViewer : public QMainWindow {
     QVBoxLayout* task_tab2;
 
     QLabel* stats;
+    QLabel* original_histogramm_label;
     QLabel* histogramm_label;
     QPushButton* analyze_image;