only show N0 estimate dialog in chisq if fittype fits.

src/musredit/PSubTextEdit.cpp

@@ -62,6 +62,31 @@ PSubTextEdit::PSubTextEdit(PAdmin *admin, QWidget *parent) :
 {
 }
 
+//----------------------------------------------------------------------------------------------------
+/**
+ * @brief PSubTextEdit::getFitType
+ * @return
+ */
+int PSubTextEdit::getFitType()
+{
+  QString str = toPlainText();
+  int idx = str.indexOf("fittype");
+  if (idx == -1)
+    return -1;
+
+  bool ok;
+  for (int i=idx+7; i<str.length(); i++) {
+    if (str[i] != ' ') {
+      idx = QString(str[i]).toInt(&ok);
+      if (!ok)
+        idx = -1;
+      break;
+    }
+  }
+
+  return idx;
+}
+
 //----------------------------------------------------------------------------------------------------
 /**
  * <p>Starts the msr-title input dialog window.