From afdb507c9b04509654adfde9263a343468e32848 Mon Sep 17 00:00:00 2001
From: Jan Philipp Timme <jan.philipp@timme.it>
Date: Fri, 18 Dec 2015 13:00:33 +0100
Subject: [PATCH] [TASK] Prepare Task #5.

---
 .gitignore          |  1 +
 imageviewer-qt4.cpp | 27 +++++++++++++++++++++++++++
 imageviewer-qt4.h   |  9 +++++++++
 3 files changed, 37 insertions(+)

diff --git a/.gitignore b/.gitignore
index f9f2dad..57aeb3c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@ Makefile
 *.o
 moc_*
 *.kdev4
+*.kate-swp
diff --git a/imageviewer-qt4.cpp b/imageviewer-qt4.cpp
index 97459cc..1b4725a 100644
--- a/imageviewer-qt4.cpp
+++ b/imageviewer-qt4.cpp
@@ -642,6 +642,15 @@ void ImageViewer::applyBasicFilterWithOverflowHandling() {
   renewLogging();
   updateImageDisplay();
 }
+
+/**
+ * Does the whole canny edge thing.
+ * 
+ * @brief ImageViewer::runCannyEdge 
+ */
+void ImageViewer::runCannyEdge(void) {
+  
+}
 /**************************************************************************************** 
 *   
 *  GUI elements related to the tasks are set up here.
@@ -890,6 +899,24 @@ void ImageViewer::generateControlPanels() {
   tabWidget->addTab(task_tab4_widget, "Task #4");
   
   
+  // Tab for fifth task
+  task_tab5_widget = new QWidget();
+  task_tab5_vboxlayout = new QVBoxLayout();
+  task_tab5_widget->setLayout(task_tab5_vboxlayout);
+  task_tab5_scrollwidget = new QWidget();
+  task_tab5_scrollarea = new QScrollArea();
+  task_tab5_scrollarea->setWidgetResizable(true);
+  task_tab5_scrollarea->setWidget(task_tab5_scrollwidget);
+  task_tab5_vboxlayout->addWidget(task_tab5_scrollarea);
+  task_tab5_scrolllayout = new QVBoxLayout();
+  task_tab5_scrolllayout->setSizeConstraint(QLayout::SetMaximumSize);
+  task_tab5_scrollwidget->setLayout(task_tab5_scrolllayout);
+  
+  run_canny_edge = new QPushButton("Run canny edge algorithm!");
+  QObject::connect(run_canny_edge, SIGNAL(clicked()), this, SLOT(runCannyEdge()));
+  
+  tabWidget->addTab(task_tab5_widget, "Task #5");
+  
   //Show it  
   tabWidget->show();
 
diff --git a/imageviewer-qt4.h b/imageviewer-qt4.h
index a33b106..1f7a299 100644
--- a/imageviewer-qt4.h
+++ b/imageviewer-qt4.h
@@ -138,6 +138,15 @@ class ImageViewer : public QMainWindow {
     QComboBox* filter_mode_combobox;
     QPushButton* apply_border_mode_filter;
     
+    // Fifth task tabWidget
+    QWidget* task_tab5_widget;
+    QVBoxLayout* task_tab5_vboxlayout;
+    QWidget* task_tab5_scrollwidget;
+    QScrollArea* task_tab5_scrollarea;
+    QVBoxLayout* task_tab5_scrolllayout;
+    
+    QPushButton* run_canny_edge;
+    
     // "My" space for storing data/results
     LazyImage* original;
     LazyImage* working_copy;