Implement hover over movies

What started as an attempt to show a frame from a movie when hovering
over it, ended in a huge bugfix commit for hover related stuff. This
commit is definitely not atomic.

When hovering over a movie present on the filesytem a frame is shown.
The time frame is configurable. While digging into the code I noticed
some bugs.

Bugfixes:
* fix label for hove archive action. It was labeled for hovering over
directories in FSWidget.
* Hovering over directories didn't have an action. Also read the
appropriate value from QSettings.

Other:
* add icons for hovering over directories and hovering over movies
* replace SheMov::toggleHover(pics|some other) with a QSignalMapper

1 files changed, 3 insertions, 1 deletions

diff --git a/helper.h b/helper.h
index 3d01131..fb6ef1c 100644
--- a/helper.h
+++ b/helper.h
@@ -15,6 +15,7 @@
 
 class QString;
 class QFileInfo;
+class QPixmap;
 
 namespace Helper {
 	const QString mimeType(const QString &path);
@@ -23,7 +24,8 @@ namespace Helper {
 	bool removeFromArchive(const QString &filename, const QString &md5);
 	const QString createArchivePath(const QString &path, const QString &md5, bool withMd5 = false);
 	QPair<QString, QStringList> programData(const QString &prefix, const QString &preferred = QString());
-	QString durationFromSecs(qint64 secs);
+	const QString durationFromSecs(qint64 secs);
+	const QPixmap grabFrame(const QString &file, QString when = QString());
 	class SortFileInfoList : public std::binary_function<QFileInfo, QFileInfo, bool> {
 		public:
 			bool operator()(const QFileInfo &lhs, const QFileInfo &rhs) const;