added cancel button

app/ui/icons/icons.cpp

@@ -57,6 +57,7 @@ QIcon olive::icon::ZoomIn;
 QIcon olive::icon::ZoomOut;
 QIcon olive::icon::Record;
 QIcon olive::icon::Add;
+QIcon olive::icon::Error;
 
 void olive::icon::LoadAll()
 {
@@ -90,6 +91,7 @@ void olive::icon::LoadAll()
   ZoomOut = Create("zoomout");
   Record = Create("record");
   Add = Create("add-button");
+  Error = Create("error");
 }
 
 QIcon olive::icon::Create(const QString &name)

app/ui/icons/icons.h

@@ -60,6 +60,7 @@ extern QIcon ZoomIn;
 extern QIcon ZoomOut;
 extern QIcon Record;
 extern QIcon Add;
+extern QIcon Error;
 
 /**
  * @brief Create an icon object loaded from file

app/widget/taskview/taskviewitem.cpp

@@ -20,8 +20,11 @@
 
 #include "taskviewitem.h"
 
+#include <QPushButton>
 #include <QVBoxLayout>
 
+#include "ui/icons/icons.h"
+
 TaskViewItem::TaskViewItem(QWidget *parent) :
   QFrame(parent),
   task_(nullptr)
@@ -36,10 +39,19 @@ TaskViewItem::TaskViewItem(QWidget *parent) :
   task_name_lbl_ = new QLabel(this);
   layout->addWidget(task_name_lbl_);
 
+  // Create center layout (combines progress bar and a cancel button)
+  QHBoxLayout* middle_layout = new QHBoxLayout();
+  layout->addLayout(middle_layout);
+
   // Create progress bar
   progress_bar_ = new QProgressBar(this);
   progress_bar_->setRange(0, 100);
-  layout->addWidget(progress_bar_);
+  middle_layout->addWidget(progress_bar_);
+
+  // Create cancel button
+  QPushButton* cancel_btn = new QPushButton(this);
+  cancel_btn->setIcon(olive::icon::Error);
+  middle_layout->addWidget(cancel_btn);
 
   // Create status label
   task_status_lbl_ = new QLabel(this);