planner: pass in_planner down to TemplateLayout

The TemplateLayout prints different dives depending on
whether the planner is active. Instead of accessing a
global variable, pass the status down from the MainWindow.
That's all quite convoluted, since there are multiple
layers involved.

On the positive side, the in_planner() function has now
no users an can be removed.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>

desktop-widgets/printdialog.h

@@ -18,10 +18,11 @@ class PrintDialog : public QDialog {
 	Q_OBJECT
 
 public:
-	explicit PrintDialog(QWidget *parent = 0);
+	explicit PrintDialog(bool inPlanner, QWidget *parent = 0);
 	~PrintDialog();
 
 private:
+	bool inPlanner;
 	PrintOptions *optionsWidget;
 	QProgressBar *progressBar;
 	Printer *printer;