Remove obsolete (and false) comment.

[lyx.git] / src / graphics / PreviewLoader.h

diff --git a/src/graphics/PreviewLoader.h b/src/graphics/PreviewLoader.h
index 0227466f7da4b3da4d6d00445ed1bbf0e2c07e2b..ca22a9fa5c56706ef327ded5a5868e1ec837ba4d 100644 (file)
--- a/src/graphics/PreviewLoader.h
+++ b/src/graphics/PreviewLoader.h
@@ -18,8 +18,11 @@
 #ifndef PREVIEWLOADER_H
 #define PREVIEWLOADER_H
 
-#include <boost/signal.hpp>
+#include "support/signals.h"
 
+#include <QObject>
+
+#include "ColorCode.h"
 
 namespace lyx {
 
@@ -29,7 +32,8 @@ namespace graphics {
 
 class PreviewImage;
 
-class PreviewLoader {
+class PreviewLoader : public QObject {
+       Q_OBJECT
 public:
        /** We need buffer because we require the preamble to the
         *  LaTeX file.
@@ -67,16 +71,16 @@ public:
        /** We have accumulated several latex snippets with status "InQueue".
         *  Initiate their transformation into bitmap images.
         */
-       void startLoading() const;
+       void startLoading(bool wait = false) const;
 
        /** Connect and you'll be informed when the bitmap image file
         *  has been created and is ready for loading through
         *  lyx::graphics::PreviewImage::image().
         */
-       typedef boost::signal<void(PreviewImage const &)> sig_type;
-       typedef sig_type::slot_type slot_type;
+       typedef signals2::signal<void(PreviewImage const &)> sig;
+       typedef sig::slot_type slot;
        ///
-       boost::signals::connection connect(slot_type const &) const;
+       signals2::connection connect(slot const &) const;
 
        /** When PreviewImage has finished loading the image file into memory,
         *  it tells the PreviewLoader to tell the outside world
@@ -85,6 +89,16 @@ public:
 
        /// Which buffer owns this loader.
        Buffer const & buffer() const;
+       /// The background color used
+       static ColorCode backgroundColor() { return Color_background; }
+       /// The foreground color used
+       static ColorCode foregroundColor() { return Color_preview; }
+
+       double displayPixelRatio() const ;
+
+public Q_SLOTS:
+       ///
+       void refreshPreviews();
 
 private:
        /// noncopyable