Vollbildmodus für HDMI

.gitignore

@@ -1,2 +1,3 @@
 build/
 uartscope-git/
+*.tar.gz

include/videowidget.h

@@ -12,6 +12,33 @@
 
 #include "v4l2worker.h"
 
+// A borderless top-level window that mirrors the live video frame at full
+// screen size. Opened from VideoWidget's "⛶" button; closes itself on
+// Escape or a double-click anywhere on it.
+class FullscreenVideoView : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit FullscreenVideoView(QWidget *parent = nullptr);
+
+    void setFrame(const QImage &frame);
+
+signals:
+    // Emitted from closeEvent() so VideoWidget can drop its pointer before
+    // the WA_DeleteOnClose deletion actually happens.
+    void closed();
+
+protected:
+    void paintEvent(QPaintEvent *event) override;
+    void keyPressEvent(QKeyEvent *event) override;
+    void mouseDoubleClickEvent(QMouseEvent *event) override;
+    void closeEvent(QCloseEvent *event) override;
+
+private:
+    QImage m_frame;
+};
+
 // VideoWidget shows the live V4L2 preview and can additionally record it
 // to an MP4 file. Recording works by piping raw BGRA frames into an
 // external `ffmpeg` process (via QProcess/stdin), which encodes them to
@@ -54,6 +81,7 @@ private slots:
     void onFreeze(bool frozen);
     void onScreenshot();
     void onRecordToggled(bool checked);
+    void onFullscreenToggle();
     void refreshDeviceList();
 
 protected:
@@ -83,8 +111,14 @@ private:
     QPushButton *m_freezeBtn     = nullptr;
     QPushButton *m_screenshotBtn = nullptr;
     QPushButton *m_recordBtn     = nullptr;
+    QPushButton *m_fullscreenBtn = nullptr;
     QLabel      *m_infoLabel     = nullptr;
 
+    // Fullscreen overlay window (nullptr when not open). Owns itself via
+    // Qt::WA_DeleteOnClose; VideoWidget just tracks whether one currently
+    // exists and forwards frames to it while it's open.
+    FullscreenVideoView *m_fullscreenView = nullptr;
+
     // Recording state. m_recordProcess is the running ffmpeg instance (or
     // nullptr when not recording); m_recordSize is the frame size the
     // recording was started with, so a mid-stream resolution change (which

src/videowidget.cpp

@@ -9,6 +9,71 @@
 #include <QMetaObject>
 #include <QResizeEvent>
 #include <QMessageBox>
+#include <QKeyEvent>
+#include <QMouseEvent>
+#include <QCloseEvent>
+#include <QScreen>
+
+// ── FullscreenVideoView ────────────────────────────────────────────────
+
+FullscreenVideoView::FullscreenVideoView(QWidget *parent)
+    : QWidget(parent, Qt::Window)
+{
+    setWindowTitle(tr("uartscope - Video (Fullscreen)"));
+    setAttribute(Qt::WA_DeleteOnClose);
+    setCursor(Qt::BlankCursor);
+
+    QPalette pal = palette();
+    pal.setColor(QPalette::Window, Qt::black);
+    setPalette(pal);
+    setAutoFillBackground(true);
+}
+
+void FullscreenVideoView::setFrame(const QImage &frame)
+{
+    m_frame = frame;
+    update();
+}
+
+void FullscreenVideoView::paintEvent(QPaintEvent *)
+{
+    QPainter p(this);
+    p.fillRect(rect(), Qt::black);
+
+    if (m_frame.isNull()) {
+        p.setPen(QColor(0x44, 0x44, 0x44));
+        p.setFont(QFont("Sans", 14));
+        p.drawText(rect(), Qt::AlignCenter, tr("No signal"));
+        return;
+    }
+
+    const QImage scaled = m_frame.scaled(size(), Qt::KeepAspectRatio,
+                                          Qt::SmoothTransformation);
+    const QPoint origin((width()  - scaled.width())  / 2,
+                         (height() - scaled.height()) / 2);
+    p.drawImage(origin, scaled);
+}
+
+void FullscreenVideoView::keyPressEvent(QKeyEvent *event)
+{
+    if (event->key() == Qt::Key_Escape || event->key() == Qt::Key_F11)
+        close();
+    else
+        QWidget::keyPressEvent(event);
+}
+
+void FullscreenVideoView::mouseDoubleClickEvent(QMouseEvent *)
+{
+    close();
+}
+
+void FullscreenVideoView::closeEvent(QCloseEvent *event)
+{
+    emit closed();
+    QWidget::closeEvent(event);
+}
+
+// ── VideoWidget ─────────────────────────────────────────────────────────
 
 static QStringList enumerateVideoDevices()
 {
@@ -44,6 +109,8 @@ VideoWidget::VideoWidget(QWidget *parent)
         m_infoLabel->setText(tr("Stopped"));
         if (m_recording)
             stopRecording();
+        if (m_fullscreenView)
+            m_fullscreenView->close();
         update();
     });
     connect(m_worker, &V4l2Worker::errorOccurred,  this, [this](const QString &msg) {
@@ -63,6 +130,9 @@ void VideoWidget::shutdown()
         return;
     m_shutdownDone = true;
 
+    if (m_fullscreenView)
+        m_fullscreenView->close();
+
     if (m_recording)
         stopRecording();
 
@@ -119,12 +189,18 @@ void VideoWidget::setupUi()
     m_recordBtn->setToolTip(tr("Record the live preview to an MP4 file (requires ffmpeg)"));
     connect(m_recordBtn, &QPushButton::toggled, this, &VideoWidget::onRecordToggled);
 
+    m_fullscreenBtn = new QPushButton(tr("⛶"), this);
+    m_fullscreenBtn->setMaximumWidth(28);
+    m_fullscreenBtn->setToolTip(tr("Show video fullscreen (Esc or double-click to exit)"));
+    connect(m_fullscreenBtn, &QPushButton::clicked, this, &VideoWidget::onFullscreenToggle);
+
     ctrlRow->addWidget(m_deviceCombo, 1);
     ctrlRow->addWidget(refreshBtn);
     ctrlRow->addWidget(m_startBtn);
     ctrlRow->addWidget(m_freezeBtn);
     ctrlRow->addWidget(m_screenshotBtn);
     ctrlRow->addWidget(m_recordBtn);
+    ctrlRow->addWidget(m_fullscreenBtn);
     layout->addLayout(ctrlRow);
 
     m_infoLabel = new QLabel(tr("No device started"), this);
@@ -229,6 +305,9 @@ void VideoWidget::onNewFrame(const QImage &frame)
     m_frame = frame;
     updateScaled();
     update();
+
+    if (m_fullscreenView)
+        m_fullscreenView->setFrame(frame);
 }
 
 void VideoWidget::clearFrame()
@@ -321,6 +400,28 @@ void VideoWidget::onRecordToggled(bool checked)
         stopRecording();
 }
 
+void VideoWidget::onFullscreenToggle()
+{
+    // Already open - a second click just closes it again.
+    if (m_fullscreenView) {
+        m_fullscreenView->close();
+        return;
+    }
+
+    m_fullscreenView = new FullscreenVideoView();
+    connect(m_fullscreenView, &FullscreenVideoView::closed, this, [this] {
+        m_fullscreenView = nullptr;
+    });
+
+    // Put it on whichever screen the main window currently lives on
+    // (useful when a second/HDMI display is attached), then go fullscreen.
+    if (QScreen *screen = this->screen())
+        m_fullscreenView->setGeometry(screen->geometry());
+
+    m_fullscreenView->setFrame(m_frame);
+    m_fullscreenView->showFullScreen();
+}
+
 void VideoWidget::startRecording()
 {
     if (m_frame.isNull()) {

uartscope-git/PKGBUILD

@@ -1,6 +1,6 @@
 # Maintainer: diabolus <your@email.com>
 pkgname=uartscope
-pkgver=1.1.0.r1.gef335f2
+pkgver=1.1.0.r2.g934f32a
 pkgrel=1
 pkgdesc="Qt6-based UART serial monitor with tag monitoring, table view and auto-reconnect"
 arch=('x86_64' 'aarch64')

uartscope-git/pkg/uartscope/.PKGINFO

@@ -3,12 +3,12 @@
 pkgname = uartscope
 pkgbase = uartscope
 xdata = pkgtype=pkg
-pkgver = 1.1.0.r1.gef335f2-1
+pkgver = 1.1.0.r2.g934f32a-1
 pkgdesc = Qt6-based UART serial monitor with tag monitoring, table view and auto-reconnect
 url = https://git.projekt-hirnfrei.de/diabolus/uartscope
-builddate = 1787701264
+builddate = 1788785731
 packager = Unknown Packager
-size = 434929
+size = 455537
 arch = x86_64
 license = MIT
 conflict = uartscope

uartscope-git/uartscope/FETCH_HEAD

@@ -1,3 +1,3 @@
-ef335f2d9eaa98572ab305e5830a0372474163e8	not-for-merge	branch 'main' of https://git.projekt-hirnfrei.de/diabolus/uartscope
+934f32a3bd94355c2d92f37899c80b95374d9fac	not-for-merge	branch 'main' of https://git.projekt-hirnfrei.de/diabolus/uartscope
 cc102c93eb17f7b910d8e74c3505f198bed77f10	not-for-merge	tag 'v1.0.0' of https://git.projekt-hirnfrei.de/diabolus/uartscope
 36923e16461bc15086c84187790dbcb5f0a5030f	not-for-merge	tag 'v1.1.0' of https://git.projekt-hirnfrei.de/diabolus/uartscope