fixed visuals when adding epw/sw while window is visible

src/qt/qtclasses.cpp

@@ -266,9 +266,12 @@ void MainWindow::updateColor(uint8_t r, uint8_t g, uint8_t b, uint8_t a) {
 	scrollArea->verticalScrollBar()->setPalette(pal);
 }
 
-void MainWindow::compose() {
+void MainWindow::compose(bool isVisible) {
-	//todo: invalidate layout when adding sessions with window open
 	//We need dynamically added child widgets to expand so that we know their height
+	this->setUpdatesEnabled(false);
+    uint64_t windowWidth;
+    uint64_t screenHeight;
+	uint64_t windowHeight;
 	/*
 	 * Setting correct widget widths and heights 
 	 */
@@ -281,18 +284,16 @@ void MainWindow::compose() {
 	screenRes.getCoords(&srx1, &sry1, &srx2, &sry2);
 	log_debugcpp("(for Percentage) Screen Res: " + std::to_string(srx1) + " " +  std::to_string(srx2)+" " + std::to_string(sry1) + " " + std::to_string(sry2));
 
-	
+	windowWidth  = (((uint64_t)std::abs(screenRes.width())) * widthRatio);
-	uint64_t windowWidth  = (((uint64_t)std::abs(screenRes.width())) * widthRatio);
+	screenHeight = (uint64_t)std::abs(screenRes.height());
-	uint64_t screenHeight = (uint64_t)std::abs(screenRes.height());
 	log_debugcpp("Window Width: " + std::to_string(windowWidth));
 	log_to_file("Window Width: %d \n", windowWidth);
-
-
-	this->createLayout(new QGridLayout());
 	this->scrollArea->setMaximumWidth((int)windowWidth);
 	this->scrollArea->setMinimumWidth((int)windowWidth);
 	this->mainMenuBar->setMinimumWidth((int)windowWidth);
 	this->mainMenuBar->setMaximumWidth((int)windowWidth);
+
+	this->createLayout(new QGridLayout());
 	for (auto *epw : ews) {
 		if (!epw) continue;
 		epw->updateChannelsVisibility();
@@ -309,7 +310,7 @@ void MainWindow::compose() {
 	/*
 	 * Calculating window height
 	 */
-	uint64_t windowHeight = 0;
+	windowHeight = 0;
 	int left = 0, top = 0, right = 0, bottom = 0;
 	for (int i = 0; i < 2; i++) {
 		if (!ews[i]) continue;
@@ -321,13 +322,17 @@ void MainWindow::compose() {
 	windowHeight += mainMenuBar->sizeHint().height();
 	log_debugcpp("windowHeight final value: " + std::to_string(windowHeight));
 
-	//Undoing scrolling
+	this->setUpdatesEnabled(true);
+	if (!isVisible) {
+		/*
+		 * Undoing scrolling
+		 */
 		scrollArea->verticalScrollBar()->setValue(0);
-	
 		/*
 		 * Establishing initial window size and position
 		 */
 		setGeometry(setSizePosition(screen, windowWidth, windowHeight));
+	}
 }
 
 QScreen* MainWindow::getCurrentScreen() {
@@ -683,7 +688,6 @@ EndpointWidget::EndpointWidget(EndpointHandler* eph, QWidget *parent, uint64_t i
 		eph->getSessionHandlers().at(i)->setFrontIndex(i);
 	}
 	
-
 	/* Add/Remove SessionWidget callback */
 	eph->setAddSessionWidgetFunction([this](SessionHandler* sessionHandler) {
 		QCoreApplication::instance()->postEvent(this, new CustomWidgetEvent<SessionHandler*>((QEvent::Type)CustomQEvent::SessionWidgetCreated, sessionHandler));
@@ -707,10 +711,8 @@ void EndpointWidget::addSessionWidget(CustomWidgetEvent<SessionHandler*>* ev){
 	const QWidgetList topLevelWidgets = QApplication::topLevelWidgets();
 	for (QWidget *widget : topLevelWidgets) {
 		if (qobject_cast<MainWindow*>(widget)) {
-			double widthRatio = ((MainWindow*)widget)->widthRatio;
+			QCoreApplication::instance()->postEvent
-			double dpr = ((MainWindow*)widget)->dpr;
+				(widget, new QEvent((QEvent::Type)CustomQEvent::RecomposeMainWindow));
-			sw->calculateSize((std::abs(this->screen()->geometry().width()) * widthRatio) * dpr,
-					  std::abs(this->screen()->geometry().height()));
 		}
 	}
 	this->widgetLayout->addWidget(sw, row, 0, 1, 4);
@@ -768,7 +770,7 @@ void MainWindow::customEvent(QEvent* ev) {
 		this->addEndpointWidget((CustomWidgetEvent<EndpointHandler*>*)ev);
 	} else if (ev->type() == (QEvent::Type)CustomQEvent::RecomposeMainWindow) {
 		ev->setAccepted(true);
-		if (this->isVisible()) this->compose();
+		if (this->isVisible()) this->compose(true);
 	} else if (ev->type() == (QEvent::Type)CustomQEvent::EndpointRoleChange) {
 		ev->setAccepted(true);
 		this->flushRoleChanges();
@@ -1327,7 +1329,7 @@ void MainWindow::trayIconActivated(QSystemTrayIcon::ActivationReason reason) {
 	case QSystemTrayIcon::Trigger:
 		if (!this->isVisible() && !recentlyClosed) {
 			log_to_file("Recently Closed: %d \n", recentlyClosed);
-			this->compose();
+			this->compose(false);
 			this->showNormal();
 			this->activateWindow();
 		} 

src/qt/qtclasses.h

@@ -183,7 +183,7 @@ class MainWindow : public QMainWindow {
 public:
 	MainWindow(QWidget *parent = nullptr);
 	void reloadEndpointWidgets();
-	void compose();
+	void compose(bool isVisible);
 	void updateColor(uint8_t r, uint8_t g, uint8_t b, uint8_t a);
 
 protected: