X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Finsets%2FRenderPreview.cpp;h=e985d290a27391427a44df676147d0f8b4c56b95;hb=9c0281126e5b819a6c10afa1bb585b76cdc4dca2;hp=5cffe44d367a1e0ca34d40311abbe2331b9c6fea;hpb=1b1f8dd235ba8e168348cd23c824063f2595a0c5;p=lyx.git

diff --git a/src/insets/RenderPreview.cpp b/src/insets/RenderPreview.cpp
index 5cffe44d36..e985d290a2 100644
--- a/src/insets/RenderPreview.cpp
+++ b/src/insets/RenderPreview.cpp
@@ -39,9 +39,33 @@ using namespace lyx::support;
 namespace lyx {
 
 
-LyXRC_PreviewStatus RenderPreview::status()
+bool RenderPreview::previewText()
 {
-	return lyxrc.preview;
+	// Use a switch to trigger a warning if the enum is changed.
+	switch(lyxrc.preview) {
+	case LyXRC::PREVIEW_ON:
+	case LyXRC::PREVIEW_NO_MATH:
+		return true;
+	case LyXRC::PREVIEW_OFF:
+		break;
+	}
+
+	return false;
+}
+
+
+bool RenderPreview::previewMath()
+{
+	// Use a switch to trigger a warning if the enum is changed.
+	switch(lyxrc.preview) {
+	case LyXRC::PREVIEW_ON:
+		return true;
+	case LyXRC::PREVIEW_NO_MATH:
+	case LyXRC::PREVIEW_OFF:
+		break;
+	}
+
+	return false;
 }
 
 
@@ -53,7 +77,7 @@ RenderPreview::RenderPreview(Inset const * inset)
 RenderPreview::RenderPreview(RenderPreview const & other,
 			     Inset const * inset)
 	: RenderBase(other),
-	  boost::signals::trackable(),
+	  boost::signals2::trackable(),
 	  snippet_(other.snippet_),
 	  parent_(inset)
 {}
@@ -80,6 +104,9 @@ docstring const statusMessage(BufferView const * bv, string const & snippet)
 
 	Buffer const & buffer = bv->buffer();
 	graphics::PreviewLoader const * loader = buffer.loader();
+	// please coverity (probably worth the check anyway)
+	if (!loader)
+		return docstring();
 	graphics::PreviewLoader::Status const status = loader->status(snippet);
 
 	docstring message;
@@ -113,7 +140,7 @@ RenderPreview::getPreviewImage(Buffer const & buffer) const
 
 void RenderPreview::metrics(MetricsInfo & mi, Dimension & dim) const
 {
-	LBUFERR(mi.base.bv, _("Text metrics error."));
+	LBUFERR(mi.base.bv);
 
 	graphics::PreviewImage const * const pimage =
 		getPreviewImage(mi.base.bv->buffer());
@@ -139,7 +166,7 @@ void RenderPreview::metrics(MetricsInfo & mi, Dimension & dim) const
 
 void RenderPreview::draw(PainterInfo & pi, int x, int y) const
 {
-	LBUFERR(pi.base.bv, _("Painter has no BufferView!"));
+	LBUFERR(pi.base.bv);
 
 	graphics::PreviewImage const * const pimage =
 		getPreviewImage(pi.base.bv->buffer());
@@ -148,7 +175,6 @@ void RenderPreview::draw(PainterInfo & pi, int x, int y) const
 	if (image) {
 		pi.pain.image(x, y - dim_.asc, dim_.wid, dim_.height(),
 			      *image);
-
 	} else {
 		int const offset = Inset::TEXT_TO_INSET_OFFSET;
 
@@ -167,12 +193,14 @@ void RenderPreview::draw(PainterInfo & pi, int x, int y) const
 			     y - theFontMetrics(font).maxAscent() - 4,
 			     stat, font);
 	}
+	pi.change_.paintCue(pi, x, y - dim_.asc,
+	                    x + dim_.width(), y - dim_.asc + dim_.height());
 }
 
 
 void RenderPreview::startLoading(Buffer const & buffer, bool forexport) const
 {
-	if (!forexport && (status() == LyXRC::PREVIEW_OFF || snippet_.empty()))
+	if (!forexport && (lyxrc.preview == LyXRC::PREVIEW_OFF || snippet_.empty()))
 		return;
 
 	graphics::PreviewLoader * loader = buffer.loader();
@@ -185,7 +213,7 @@ void RenderPreview::addPreview(docstring const & latex_snippet,
                                Buffer const & buffer, 
                                bool ignore_lyxrc)
 {
-	if (status() == LyXRC::PREVIEW_OFF && !ignore_lyxrc)
+	if (lyxrc.preview == LyXRC::PREVIEW_OFF && !ignore_lyxrc)
 		return;
 
 	graphics::PreviewLoader * loader = buffer.loader();
@@ -198,7 +226,7 @@ void RenderPreview::addPreview(docstring const & latex_snippet,
                                graphics::PreviewLoader & ploader, 
                                bool ignore_lyxrc)
 {
-	if (status() == LyXRC::PREVIEW_OFF && !ignore_lyxrc)
+	if (lyxrc.preview == LyXRC::PREVIEW_OFF && !ignore_lyxrc)
 		return;
 
 	// FIXME UNICODE
@@ -261,7 +289,7 @@ void RenderMonitoredPreview::draw(PainterInfo & pi, int x, int y) const
 }
 
 
-boost::signals::connection
+boost::signals2::connection
 RenderMonitoredPreview::fileChanged(slot_type const & slot)
 {
 	return monitor_.connect(slot);