Suggest file for burning

Implemented an action to suggest the best fitting file for burning
in FilesTreeWidget. Added 20 Mb of margin to maximum dvd size.

1 files changed, 37 insertions, 0 deletions

diff --git a/filestreewidget.cpp b/filestreewidget.cpp
index 2aa32d2..d44e561 100644
--- a/filestreewidget.cpp
+++ b/filestreewidget.cpp
@@ -250,6 +250,43 @@ void FilesTreeWidget::edit(int column){
 	}
 }
 
+void FilesTreeWidget::suggest(){
+	QModelIndexList currentSel = mView->selectionModel()->selectedRows();
+	if(currentSel.isEmpty()){
+		return;
+	}
+	qint64 size = 0;
+	foreach(QModelIndex curIdx, currentSel){
+		qint64 curSize = curIdx.data(FilesTreeModel::SizeRole).value<qint64>();
+		size += curSize;
+	}
+	qint64 dvdSize = SmGlobals::instance()->dvdSize();
+	if(size > dvdSize){
+		QMessageBox::critical(this, tr("Error"), tr("File too big for a single DVD"));
+		return;
+	}
+	qint64 neededSize = dvdSize - size;
+	QModelIndexList possibleFiles = mModel->fileSizeLessThan(neededSize);
+	if(possibleFiles.isEmpty()){
+		QLocale l;
+		float mb = size / 1024 / 1024;
+		QString message = QString(tr("No file smaller than %1 MiB found")).arg(l.toString(mb, 'f', 2));
+		QMessageBox::critical(this, tr("Error"), message);
+		return;
+	}
+	QModelIndex last;
+	QStringList selectedFiles;
+	foreach(QModelIndex sIdx, possibleFiles){
+		QModelIndex vIdx = mProxy->mapFromSource(sIdx);
+		last = vIdx;
+		mView->selectionModel()->select(vIdx, QItemSelectionModel::Select | QItemSelectionModel::Rows);
+		selectedFiles << sIdx.data(FilesTreeModel::FileNameRole).toString();
+	}
+	QString message = QString(tr("Selected %1 items: %2")).arg(QString::number(selectedFiles.count())).arg(selectedFiles.join(", "));
+	emit statusMessage(message);
+	mView->scrollTo(last, QAbstractItemView::PositionAtCenter);
+}
+
 void FilesTreeWidget::fileSelectionChanged(const QModelIndex &current, const QModelIndex &previous){
 	Q_UNUSED(previous);
 	int seriesPartId = current.data(FilesTreeModel::SeriesPartIdRole).toInt();