GUI: Add "LIVE" indicator

Author: mpiatka

gui/QT/ui/ultragrid_window.ui

@@ -77,7 +77,7 @@
             <item>
              <widget class="QLabel" name="previewLabel">
               <property name="sizePolicy">
-               <sizepolicy hsizetype="Preferred" vsizetype="Maximum">
+               <sizepolicy hsizetype="Minimum" vsizetype="Maximum">
                 <horstretch>0</horstretch>
                 <verstretch>0</verstretch>
                </sizepolicy>
@@ -90,10 +90,20 @@
               </property>
              </widget>
             </item>
+            <item>
+             <widget class="LiveWidget" name="liveIndicator" native="true">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Maximum" vsizetype="Preferred">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+             </widget>
+            </item>
             <item>
              <widget class="BandwidthWidget" name="send_bandwidth">
               <property name="sizePolicy">
-               <sizepolicy hsizetype="Preferred" vsizetype="Maximum">
+               <sizepolicy hsizetype="Maximum" vsizetype="Maximum">
                 <horstretch>0</horstretch>
                 <verstretch>0</verstretch>
                </sizepolicy>
@@ -854,6 +864,12 @@
    <extends>QLabel</extends>
    <header>bandwidth_widget.hpp</header>
   </customwidget>
+  <customwidget>
+   <class>LiveWidget</class>
+   <extends>QWidget</extends>
+   <header>live_widget.hpp</header>
+   <container>1</container>
+  </customwidget>
  </customwidgets>
  <resources/>
  <connections>

gui/QT/uv-qt.pro

@@ -57,6 +57,7 @@ HEADERS += window/ultragrid_window.hpp \
 	widget/recv_loss.hpp \
 	widget/bandwidth_widget.hpp \
 	window/settings_window.hpp \
+	widget/live_widget.hpp \
 	option/widget_ui.hpp \
 	option/checkable_ui.hpp \
 	option/checkbox_ui.hpp \
@@ -91,6 +92,7 @@ SOURCES += window/ultragrid_window.cpp \
 	widget/recv_report.cpp \
 	widget/recv_loss.cpp \
 	widget/bandwidth_widget.cpp \
+	widget/live_widget.cpp \
 	window/settings_window.cpp \
 	option/widget_ui.cpp \
 	option/checkable_ui.cpp \

gui/QT/widget/live_widget.cpp

@@ -0,0 +1,38 @@
+#include "live_widget.hpp"
+
+#include <QPainter>
+
+constexpr auto label = "LIVE";
+
+LiveWidget::LiveWidget(QWidget *parent) :
+	QWidget(parent),
+	liveText(label)
+{
+	QFontMetrics fm = fontMetrics();
+	boundingRect = fm.boundingRect(liveText);
+	boundingRect.setWidth(boundingRect.width() + boundingRect.height()); //Add space for dot
+
+	setMinimumSize(boundingRect.width(), boundingRect.height());
+}
+
+void LiveWidget::setLive(bool live){
+	this->live = live;
+	update();
+}
+
+void LiveWidget::paintEvent(QPaintEvent *event){
+	QPainter painter(this);
+
+
+	if(live){
+		painter.setBrush(Qt::red);
+		painter.setPen(Qt::red);
+	} else{
+		painter.setPen(Qt::gray);
+		auto font = painter.font();
+		font.setStrikeOut(true);
+		painter.setFont(font);
+	}
+	painter.drawEllipse(0, boundingRect.height() / 4, boundingRect.height() / 2, boundingRect.height() / 2);
+	painter.drawText(QRect(0, 0, boundingRect.width(), boundingRect.height()), Qt::AlignRight, liveText);
+}

gui/QT/widget/live_widget.hpp

@@ -0,0 +1,25 @@
+#ifndef LIVE_WIDGET_HPP_14CFE779EB7746999FBF8CE66D903392
+#define LIVE_WIDGET_HPP_14CFE779EB7746999FBF8CE66D903392
+
+#include <QWidget>
+
+class LiveWidget : public QWidget{
+	Q_OBJECT
+public:
+	LiveWidget(QWidget *parent);
+
+
+protected:
+	void paintEvent(QPaintEvent *paintEvent);
+
+public slots:
+	void setLive(bool live);
+
+
+private:
+	QString liveText;
+	QRect boundingRect;
+	bool live = false;
+};
+
+#endif //LIVE_WIDGET_HPP_14CFE779EB7746999FBF8CE66D903392

gui/QT/window/ultragrid_window.cpp

@@ -353,6 +353,7 @@ void UltragridWindow::start(){
 				ui.startButton->setEnabled(true);
 				processStatus.setText("UG: Running");
 				ui.actionRefresh->setEnabled(false);
+				ui.liveIndicator->setLive(true);
 			});
 
 	connect(ctx.get(), &LaunchContext::processTerminated,
@@ -365,6 +366,7 @@ void UltragridWindow::start(){
 				clearFmtLabels();
 				rtcpRr.resetRecvReports();
 				ui.send_bandwidth->reset();
+				ui.liveIndicator->setLive(false);
 
 				if(!requested && (es == QProcess::ExitStatus::CrashExit || ec != 0)){
 					processStatus.setText("UG: Crashed");