M src/platform/qt/FrameView.cpp → src/platform/qt/FrameView.cpp

@@ -13,6 +13,7 @@ #include <array>
 #include <cmath>
 
 #include "CoreController.h"
+#include "GBAApp.h"
 
 #include <mgba/core/core.h>
 #include <mgba/feature/video-logger.h>
@@ -67,6 +68,7 @@
 		QPixmap rendered = m_rendered.scaledToHeight(m_rendered.height() * m_ui.magnification->value());
 		m_ui.renderedView->setPixmap(rendered);
 	});
+	connect(m_ui.exportButton, &QAbstractButton::pressed, this, &FrameView::exportFrame);
 	m_controller->addFrameAction(std::bind(&FrameView::frameCallback, this, m_callbackLocker));
 }
 
@@ -328,6 +330,7 @@ if (m_framebuffer.isNull()) {
 		updateRendered();
 		composited = m_rendered;
 	} else {
+		m_ui.exportButton->setEnabled(true);
 		composited.convertFromImage(m_framebuffer);
 	}
 	m_composited = composited.scaled(m_dims * m_ui.magnification->value());
@@ -406,6 +409,12 @@ viewer->refreshVl();
 	viewer->m_controller->addFrameAction(std::bind(&FrameView::frameCallback, viewer, lock));
 }
 
+void FrameView::exportFrame() {
+	QString filename = GBAApp::app()->getSaveFileName(this, tr("Export frame"),
+	                                                  tr("Portable Network Graphics (*.png)"));
+	CoreController::Interrupter interrupter(m_controller);
+	m_framebuffer.save(filename, "PNG");
+}
 
 QString FrameView::LayerId::readable() const {
 	QString typeStr;

M src/platform/qt/FrameView.h → src/platform/qt/FrameView.h

@@ -37,6 +37,7 @@
 public slots:
 	void selectLayer(const QPointF& coord);
 	void disableLayer(const QPointF& coord);
+	void exportFrame();
 
 protected:
 #ifdef M_CORE_GBA