Issue 2134: removed obsolete raw highlight preservation setting from GUI (still left in procparams for backwards compatilibility)

rtgui/previewloader.h

@@ -0,0 +1,93 @@
+/*
+ *  This file is part of RawTherapee.
+ *
+ *  Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
+ *
+ *  RawTherapee is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ * 
+ *  RawTherapee is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _PREVIEWLOADER_
+#define _PREVIEWLOADER_
+
+#include <set>
+#include <glibmm.h>
+#include "filebrowserentry.h"
+
+class PreviewLoaderListener 
+{
+public:
+
+	/** 
+	 * @brief a preview is ready
+	 * 
+	 * @param dir_id directory ID this is for
+	 * @param fd entry
+	 */
+	virtual void previewReady (int dir_id, FileBrowserEntry* fd) {}
+
+	/** 
+	 * @brief all previews have finished loading
+	 */
+	virtual void previewsFinished (int dir_id_) {}
+};
+
+class PreviewLoader
+{
+  public:
+
+	/** 
+	 * @brief Singleton entry point.
+	 * 
+	 * @note expects to be called inside gtk thread lock
+	 *
+	 * @return Pointer to thumbnail image updater.
+	 */
+	static PreviewLoader* getInstance(void);
+
+	/** 
+	 * @brief Add an thumbnail image update request.
+	 *
+	 * Code will add the request to the queue and, if needed, start a pool
+	 * thread to process it.
+	 * 
+	 * @param dir_id directory we're looking at
+	 * @param dir_entry entry in it
+	 * @param l listener
+	 */
+    void add(int dir_id, const Glib::ustring& dir_entry, PreviewLoaderListener* l);
+
+	/** 
+	 * @brief Stop processing and remove all jobs.
+	 *
+	 * Will not return till all jobs have completed.
+	 *
+	 * @note expects to be called inside gtk thread lock
+	 */
+    void removeAllJobs(void);
+
+  private:
+
+    PreviewLoader();
+
+	class Impl;
+	Impl* impl_;
+};
+
+/** 
+ * @brief Singleton boiler plate.
+ *
+ * To use: \c previewLoader->start() ,
+ */
+#define previewLoader PreviewLoader::getInstance()
+
+#endif