Added a "Plot All" button to the spectra dialog. Refs #4034.

Code/Mantid/MantidPlot/src/Mantid/MantidWSIndexDialog.cpp

@@ -124,6 +124,12 @@ void MantidWSIndexDialog::plot()
   // TODO - Add functionality to warn the user?
 }
 
+void MantidWSIndexDialog::plotAll()
+{
+  m_wsIndexChoice = m_wsIndexIntervals;
+  accept();
+}
+
 void MantidWSIndexDialog::editedWsField()
 {
   if(m_spectra) m_spectraField->clear();
@@ -190,14 +196,17 @@ void MantidWSIndexDialog::initButtons()
 
   m_okButton = new QPushButton("Ok");
   m_cancelButton = new QPushButton("Cancel");
+  m_plotAllButton = new QPushButton("Plot All");
 
   m_buttonBox->addWidget(m_okButton);
   m_buttonBox->addWidget(m_cancelButton);
+  m_buttonBox->addWidget(m_plotAllButton);
 
   m_outer->addItem(m_buttonBox);
 
   connect(m_okButton, SIGNAL(clicked()), this, SLOT(plot()));
   connect(m_cancelButton, SIGNAL(clicked()), this, SLOT(close()));
+  connect(m_plotAllButton, SIGNAL(clicked()), this, SLOT(plotAll()));
 }
 
 void MantidWSIndexDialog::checkForSpectraAxes()

Code/Mantid/MantidPlot/src/Mantid/MantidWSIndexDialog.h

@@ -201,6 +201,8 @@ class MantidWSIndexDialog : public QDialog
 private slots:
   /// Called when the OK button is pressed.
   void plot();
+  /// Called when the "Plot All" button is pressed.
+  void plotAll();
   /// Called when the wsField has been edited.
   void editedWsField();
   /// Called when the spectraField has been edited.
@@ -236,7 +238,7 @@ private slots:
   QLineEdit *m_wsField, *m_spectraField;
   QVBoxLayout *m_outer, *m_wsBox, *m_spectraBox; 
   QHBoxLayout *m_buttonBox;
-  QPushButton *m_okButton, *m_cancelButton;
+  QPushButton *m_okButton, *m_cancelButton, *m_plotAllButton;
 
   /// A list of names of workspaces which are to be plotted.
   QList<QString> m_wsNames;