qv4l2: correctly disable two menu items

The "Save Raw Frames" menu item should be disabled if no video device is open,
the "Use OpenGL Rendering" menu item should be disabled if streaming is in
progress.

Signed-off-by: Anton Arbring <aarbring@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>

diff --git a/utils/qv4l2/qv4l2.cpp b/utils/qv4l2/qv4l2.cpp
index 6994469..5072636 100644 (file)
--- a/utils/qv4l2/qv4l2.cpp
+++ b/utils/qv4l2/qv4l2.cpp
@@ -254,6 +254,8 @@ void ApplicationWindow::setDevice(const QString &device, bool rawOpen)
        m_tabs->setFocus();
        m_convertData = v4lconvert_create(fd());
        m_capStartAct->setEnabled(fd() >= 0);
+       m_saveRawAct->setEnabled(fd() >= 0);
+       m_useGLAct->setEnabled(CaptureWinGL::isSupported());
        m_ctrlNotifier = new QSocketNotifier(fd(), QSocketNotifier::Exception, m_tabs);
        connect(m_ctrlNotifier, SIGNAL(activated(int)), this, SLOT(ctrlEvent()));
 }
@@ -695,6 +697,8 @@ bool ApplicationWindow::startCapture(unsigned buffer_size)
 
        memset(&req, 0, sizeof(req));
 
+       m_useGLAct->setEnabled(false);
+
        switch (m_capMethod) {
        case methodRead:
                m_snapshotAct->setEnabled(true);
@@ -846,6 +850,7 @@ bool ApplicationWindow::startCapture(unsigned buffer_size)
 
 error:
        m_capStartAct->setChecked(false);
+       m_useGLAct->setEnabled(CaptureWinGL::isSupported());
        return false;
 }
 
@@ -863,6 +868,7 @@ void ApplicationWindow::stopCapture()
 
        m_capture->stop();
        m_snapshotAct->setDisabled(true);
+       m_useGLAct->setEnabled(CaptureWinGL::isSupported());
        switch (m_capMethod) {
        case methodRead:
                memset(&cmd, 0, sizeof(cmd));
@@ -1167,6 +1173,7 @@ void ApplicationWindow::closeDevice()
        m_sigMapper = NULL;
        m_capStartAct->setEnabled(false);
        m_capStartAct->setChecked(false);
+       m_saveRawAct->setEnabled(false);
        if (fd() >= 0) {
                if (m_capNotifier) {
                        delete m_capNotifier;