X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Finsets%2FInsetExternal.h;h=75b7f70ffa5f9d2690047422fec1145288552c13;hb=ebc2b1295a0464dde6c20a09ddc249c463a21c79;hp=5eca6641cc50c967b743ab8c66ef1e6760f28545;hpb=3391fed36a574fb729f243888258d1b6d45b0251;p=lyx.git

diff --git a/src/insets/InsetExternal.h b/src/insets/InsetExternal.h
index 5eca6641cc..75b7f70ffa 100644
--- a/src/insets/InsetExternal.h
+++ b/src/insets/InsetExternal.h
@@ -19,8 +19,6 @@
 #include "support/FileName.h"
 #include "support/unique_ptr.h"
 
-#include <boost/signals2/trackable.hpp>
-
 
 namespace lyx {
 
@@ -90,7 +88,7 @@ private:
 class RenderBase;
 
 ///
-class InsetExternal : public Inset, public boost::signals2::trackable
+class InsetExternal : public Inset
 {
 	// Disable assignment operator, since it is not used, and it is too
 	// complicated to implement it consistently with the copy constructor
@@ -110,7 +108,7 @@ public:
 	///
 	void setParams(InsetExternalParams const &);
 	/// Update not loaded previews
-	void updatePreview();
+	void updatePreview() const;
 	/// \returns the number of rows (\n's) of generated code.
 	void latex(otexstream &, OutputParams const &) const;
 	///
@@ -165,11 +163,15 @@ private:
 	 *  and the preview should be regenerated.
 	 */
 	void fileChanged() const;
+	/// Is this inset using (instant or graphics) preview?
+	bool isPreviewed() const;
+	/// Do we have the right renderer (button, graphic or monitored preview)?
+	bool isRendererValid() const;
 
 	/// The current params
 	InsetExternalParams params_;
 	/// The thing that actually draws the image on LyX's screen.
-	unique_ptr<RenderBase> renderer_;
+	mutable unique_ptr<RenderBase> renderer_;
 	/// changes color of the button when mouse enters/leaves this inset
 	mutable std::map<BufferView const *, bool> mouse_hover_;
 };