Restore image auto-update on change feature

* This was apparently never ported over to Qt!

qrenderdoc/Code/CaptureContext.cpp

@@ -28,6 +28,7 @@
 #include <QDirIterator>
 #include <QElapsedTimer>
 #include <QFileInfo>
+#include <QFileSystemWatcher>
 #include <QLabel>
 #include <QMenu>
 #include <QMessageBox>
@@ -732,6 +733,19 @@ void CaptureContext::LoadCapture(const rdcstr &captureFile, const ReplayOptions
                      [this]() { return !m_LoadInProgress; },
                      [this]() { return UpdateLoadProgress(); });
 
+  if(local)
+  {
+    m_Watcher = new QFileSystemWatcher({captureFile}, GetMainWindow()->Widget());
+
+    QObject::connect(m_Watcher, &QFileSystemWatcher::fileChanged, [this]() {
+      Replay().AsyncInvoke([this](IReplayController *r) {
+        r->FileChanged();
+        r->SetFrameEvent(m_EventID, true);
+        GUIInvoke::call(GetMainWindow()->Widget(), [this]() { RefreshUIStatus({}, true, true); });
+      });
+    });
+  }
+
 #if defined(RELEASE)
   ANALYTIC_ADDAVG(Performance.LoadTime, double(loadTimer.nsecsElapsed() * 1.0e-9));
 #endif
@@ -1274,6 +1288,9 @@ void CaptureContext::CloseCapture()
   if(!m_CaptureLoaded)
     return;
 
+  delete m_Watcher;
+  m_Watcher = NULL;
+
   delete m_RGP;
   m_RGP = NULL;
 

qrenderdoc/Code/CaptureContext.h

@@ -55,6 +55,8 @@ class ResourceInspector;
 class ShaderViewer;
 class MiniQtHelper;
 
+class QFileSystemWatcher;
+
 class CaptureContext : public ICaptureContext, IExtensionManager
 {
   Q_DECLARE_TR_FUNCTIONS(CaptureContext);
@@ -405,6 +407,8 @@ private:
 
   MiniQtHelper *m_QtHelper = NULL;
 
+  QFileSystemWatcher *m_Watcher = NULL;
+
   // Windows
   MainWindow *m_MainWindow = NULL;
   EventBrowser *m_EventBrowser = NULL;