From: Guillaume Munch <gm@lyx.org>
Date: Sun, 19 Mar 2017 13:41:54 +0000 (+0100)
Subject: Regularly check if preview is modified when visible on screen
X-Git-Tag: 2.3.0alpha1~196
X-Git-Url: https://git.lyx.org/gitweb/?a=commitdiff_plain;h=ac6d3ffb6a5c8b007d198681b169e1d68b0971e9;p=lyx.git

Regularly check if preview is modified when visible on screen

In case one cannot rely on QFileSystemWatcher.
---

diff --git a/src/insets/RenderPreview.cpp b/src/insets/RenderPreview.cpp
index 99abca9f3c..e29ccc4271 100644
--- a/src/insets/RenderPreview.cpp
+++ b/src/insets/RenderPreview.cpp
@@ -292,6 +292,7 @@ void RenderMonitoredPreview::draw(PainterInfo & pi, int x, int y) const
 {
 	RenderPreview::draw(pi, x, y);
 	startMonitoring();
+	monitor_->checkModifiedAsync();
 }
 
 
@@ -311,7 +312,7 @@ bool RenderMonitoredPreview::monitoring() const
 void RenderMonitoredPreview::startMonitoring() const
 {
 	if (!monitoring()) {
-		monitor_ = FileSystemWatcher::monitor(filename_);
+		monitor_ = FileSystemWatcher::activeMonitor(filename_);
 		monitor_->connect(changed_);
 	}
 }
diff --git a/src/insets/RenderPreview.h b/src/insets/RenderPreview.h
index c6dd74d28e..42d944d035 100644
--- a/src/insets/RenderPreview.h
+++ b/src/insets/RenderPreview.h
@@ -134,7 +134,7 @@ private:
 	/// This signal is emitted if the file is modified
 	ChangedSig changed_;
 	///
-	mutable support::FileMonitorPtr monitor_;
+	mutable support::ActiveFileMonitorPtr monitor_;
 	///
 	support::FileName filename_;
 };