Implement FilePropertiesDialog

Implemented a dialog for file properties. When the mime type says it's a
video, fork ffprobe to read the properties of all streams and show them
in a QTreeView powered by a SmTreeModel. If the mime type is image, use
QImage to read some properties and show them in the same dialog.

This commit introduces the new class FilePropertiesDialog. I also had to
implement a copy constructor for SmTreeItem. It obsoletes classes
ActorWidget, ActorModel and MoviePropertiesDialog.

1 files changed, 76 insertions, 0 deletions

diff --git a/filestreemodel.cpp b/filestreemodel.cpp
index 1f224fd..9c17084 100644
--- a/filestreemodel.cpp
+++ b/filestreemodel.cpp
@@ -10,6 +10,9 @@
 #include <QIcon>
 #include <QFileInfo>
 #include <QFile>
+#include <QSettings>
+#include <QProcess>
+#include <QImage>
 
 #include "filestreemodel.h"
 #include "smtreeitem.h"
@@ -235,6 +238,79 @@ QHash<QString, QString> FilesTreeModel::filesBySeriesPartId(int seriesPartId){
 	return retval;
 }
 
+QList<QMap<QString, QString> > FilesTreeModel::streamInfo(const QModelIndex &idx){
+	QList<QMap<QString, QString> > retval;
+	if(!idx.isValid()){
+		return retval;
+	}
+	QSettings s;
+	QString ffProbe = s.value("paths/ffprobe").toString();
+	QString fullPath = idx.data(FullPathRole).toString();
+	QStringList args;
+	args << "-show_streams" << fullPath;
+	QProcess ffproc;
+	ffproc.start(ffProbe, args);
+	if(!ffproc.waitForStarted()){
+		return retval;
+	}
+	ffproc.waitForFinished();
+	QByteArray ffData = ffproc.readAllStandardOutput();
+	QList<QByteArray> lines = ffData.split('\n');
+	QMap<QString, QString> current;
+	foreach(QString l, lines){
+		if(l.startsWith("[STREAM]")){
+			continue;
+		}
+		if(l.startsWith("[/STREAM]")){
+			retval << current;
+			current.clear();
+			continue;
+		}
+		QStringList parts = l.split('=');
+		if(parts.size() == 2){
+			current.insert(parts.at(0), parts.at(1));
+		}
+	}
+	return retval;
+}
+
+QMap<QString, QString> FilesTreeModel::pictureInfo(const QModelIndex &idx){
+	QMap<QString, QString> retval;
+	if(!idx.isValid()){
+		return retval;
+	}
+	QString fullPath = idx.data(FullPathRole).toString();
+	QImage img(fullPath);
+	if(img.isNull()){
+		return retval;
+	}
+	retval.insert("Width", QString::number(img.width()));
+	retval.insert("Height", QString::number(img.height()));
+	retval.insert("Colors", QString::number(img.colorCount()));
+	retval.insert("Color depth", QString::number(img.depth()));
+	retval.insert("Byte count", QString::number(img.byteCount()));
+	retval.insert("Bytes per line", QString::number(img.bytesPerLine()));
+	retval.insert("Alpha channel", img.hasAlphaChannel() ? tr("yes") : tr("no"));
+	retval.insert("Gray scale", img.isGrayscale() ? tr("yes") : tr("no"));
+	return retval;
+}
+
+QMap<QString, QString> FilesTreeModel::pictureMetaInfo(const QModelIndex &idx){
+	QMap<QString, QString> retval;
+	if(!idx.isValid()){
+		return retval;
+	}
+	QString fullPath = idx.data(FullPathRole).toString();
+	QImage img(fullPath);
+	if(img.isNull()){
+		return retval;
+	}
+	foreach(QString v, img.textKeys()){
+		retval.insert(v, img.text(v));
+	}
+	return retval;
+}
+
 bool FilesTreeModel::addFile(const QString &fullPath, int type, int quality, int filePart, int seriesPartId, int dvd){
 	QFileInfo fi(fullPath);
 	qint64 size = fi.size();