When trying to play a monitor that is hidden, display an info message allowing to show the monitor.

Fixes #762

src/mainwindow.cpp

@@ -3715,9 +3715,16 @@ void MainWindow::slotChangeStyle(QAction *a)
     KdenliveSettings::setWidgetstyle(style);
     doChangeStyle();
     // Monitor refresh is necessary
-    if (pCore->monitorManager()->isActive(Kdenlive::ClipMonitor)) {
+    raiseMonitor(pCore->monitorManager()->isActive(Kdenlive::ClipMonitor));
+}
+
+void MainWindow::raiseMonitor(bool clipMonitor)
+{
+    if (clipMonitor) {
+        m_clipMonitorDock->show();
         m_clipMonitorDock->raise();
     } else {
+        m_projectMonitorDock->show();
         m_projectMonitorDock->raise();
     }
 }

src/mainwindow.h

@@ -131,6 +131,9 @@ public:
     
     /** @brief Returns true if the timeline widget is visible */
     bool timelineVisible() const;
+    
+    /** @brief Raise (show) the clip or project monitor */
+    void raiseMonitor(bool clipMonitor);
 
 protected:
     /** @brief Closes the window.

src/monitor/monitormanager.cpp

@@ -154,6 +154,7 @@ bool MonitorManager::activateMonitor(Kdenlive::MonitorId name)
                 m_clipMonitor->parentWidget()->raise();
             }
             if (!m_clipMonitor->isVisible()) {
+                pCore->displayMessage(i18n("Do you want to <a href=\"#clipmonitor\">show the clip monitor</a> to view timeline?"), MessageType::InformationMessage);
                 m_activeMonitor = m_projectMonitor;
                 return false;
             }
@@ -165,6 +166,7 @@ bool MonitorManager::activateMonitor(Kdenlive::MonitorId name)
                 m_projectMonitor->parentWidget()->raise();
             }
             if (!m_projectMonitor->isVisible()) {
+                pCore->displayMessage(i18n("Do you want to <a href=\"#projectmonitor\">show the project monitor</a> to view timeline?"), MessageType::InformationMessage);
                 m_activeMonitor = m_clipMonitor;
                 return false;
             }

src/statusbarmessagelabel.cpp

@@ -23,6 +23,8 @@
 
 #include "statusbarmessagelabel.h"
 #include "kdenlivesettings.h"
+#include "core.h"
+#include "mainwindow.h"
 
 #include <KNotification>
 #include <kcolorscheme.h>
@@ -220,7 +222,7 @@ bool StatusBarMessageLabel::slotMessageTimeout()
         iconName = "dialog-information";
         m_pixmap->setCursor(Qt::ArrowCursor);
         QPropertyAnimation *anim = new QPropertyAnimation(this, "color", this);
-        anim->setDuration(1500);
+        anim->setDuration(3000);
         anim->setEasingCurve(QEasingCurve::InOutQuad);
         anim->setKeyValueAt(0.2, parentWidget()->palette().highlight().color());
         anim->setEndValue(parentWidget()->palette().window().color());
@@ -247,7 +249,7 @@ bool StatusBarMessageLabel::slotMessageTimeout()
         anim->setStartValue(bgColor);
         anim->setEndValue(bgColor);
         anim->setEasingCurve(QEasingCurve::OutCubic);
-        anim->setDuration(1500);
+        anim->setDuration(3000);
         anim->start(QPropertyAnimation::DeleteWhenStopped);
         break;
     }
@@ -281,6 +283,18 @@ void StatusBarMessageLabel::resizeEvent(QResizeEvent *event)
 
 void StatusBarMessageLabel::slotShowJobLog(const QString &text)
 {
+    // Special actions
+    if (text.startsWith(QLatin1Char('#'))) {
+        if (text == QLatin1String("#projectmonitor")) {
+            // Raise project monitor
+            pCore->window()->raiseMonitor(false);
+            return;
+        } else if (text == QLatin1String("#clipmonitor")) {
+            // Raise project monitor
+            pCore->window()->raiseMonitor(true);
+            return;
+        }
+    }
     QDialog d(this);
     QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Close);
     QWidget *mainWidget = new QWidget(this);