Feature/gui implements #53

applications/gui/src/ctrl_window.cpp

+#include "ctrl_window.hpp"
+
+#include <nanogui/layout.h>
+#include <nanogui/label.h>
+#include <nanogui/combobox.h>
+#include <nanogui/button.h>
+#include <nanogui/entypo.h>
+
+#include <vector>
+#include <string>
+
+using ftl::gui::ControlWindow;
+using std::string;
+using std::vector;
+
+
+ControlWindow::ControlWindow(nanogui::Widget *parent, ftl::ctrl::Master *ctrl)
+		: nanogui::Window(parent, "Node Control"), ctrl_(ctrl) {
+	setLayout(new nanogui::GroupLayout());
+
+	using namespace nanogui;
+
+	_updateDetails();
+
+	auto button = new Button(this, "Add Node", ENTYPO_ICON_PLUS);
+	button->setCallback([this] {
+		// Show new connection dialog
+	});
+	button = new Button(this, "Restart All", ENTYPO_ICON_CYCLE);
+	button->setCallback([this] {
+		ctrl_->restart();
+	});
+	button = new Button(this, "Shutdown All", ENTYPO_ICON_POWER_PLUG);
+	button->setCallback([this] {
+		ctrl_->shutdown();
+	});
+
+	new Label(this, "Select Node","sans-bold");
+	auto select = new ComboBox(this, node_titles_);
+	select->setCallback([this](int ix) {
+		LOG(INFO) << "Change node: " << ix;
+		_changeActive(ix);
+	});
+
+	button = new Button(this, "Restart Node", ENTYPO_ICON_CYCLE);
+	button->setCallback([this] {
+		ctrl_->restart(_getActiveID());
+	});
+
+	button = new Button(this, "Shutdown Node", ENTYPO_ICON_POWER_PLUG);
+	button->setCallback([this] {
+		ctrl_->shutdown(_getActiveID());
+	});
+
+	_changeActive(0);
+}
+
+ControlWindow::~ControlWindow() {
+
+}
+
+void ControlWindow::_updateDetails() {
+	node_details_ = ctrl_->getSlaves();
+
+	node_titles_.clear();
+	for (auto &d : node_details_) {
+		node_titles_.push_back(d["title"].get<string>());
+	}
+}
+
+void ControlWindow::_changeActive(int ix) {
+	active_ix_ = ix;
+}
+
+ftl::UUID ControlWindow::_getActiveID() {
+	return ftl::UUID(node_details_[active_ix_]["id"].get<string>());
+}
+