Merge pull request #19528 from mantidproject/19527_qthelp_printbutton

Print button in MantidPlot help

MantidQt/MantidWidgets/inc/MantidQtMantidWidgets/pqHelpWindow.h

@@ -58,11 +58,14 @@ public slots:
   virtual void showPage(const QString &url);
   virtual void showPage(const QUrl &url);
 
-  /// Tires to locate a file name index.html in the given namespace and then
+  /// Tries to locate a file name index.html in the given namespace and then
   /// shows that page.
   virtual void showHomePage(const QString &namespace_name);
   virtual void showHomePage();
 
+  /// Prints the current open page
+  virtual void printPage();
+
 signals:
   /// fired to relay warning messages from the help system.
   void helpWarnings(const QString &);

MantidQt/MantidWidgets/src/pqHelpWindow.cxx

@@ -42,6 +42,8 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <QNetworkProxy>
 #include <QNetworkReply>
 #include <QPointer>
+#include <QPrinter>
+#include <QPrintDialog>
 #include <QPushButton>
 #include <QTextBrowser>
 #include <QTextStream>
@@ -196,6 +198,8 @@ pqHelpWindow::pqHelpWindow(
   // add a navigation toolbar
   QToolBar *navigation = new QToolBar("Navigation");
   QPushButton *home = new QPushButton("Home");
+  QPushButton *print = new QPushButton("Print...");
+  print->setToolTip("Print the current page");
 
   m_forward = new QToolButton();
   m_forward->setArrowType(Qt::RightArrow);
@@ -210,6 +214,7 @@ pqHelpWindow::pqHelpWindow(
   m_backward->setAutoRaise(true);
 
   navigation->addWidget(home);
+  navigation->addWidget(print);
   navigation->addWidget(m_backward);
   navigation->addWidget(m_forward);
   navigation->setAllowedAreas(Qt::TopToolBarArea | Qt::RightToolBarArea);
@@ -258,6 +263,7 @@ pqHelpWindow::pqHelpWindow(
 
   // connect the navigation buttons
   connect(home, SIGNAL(clicked()), this, SLOT(showHomePage()));
+  connect(print, SIGNAL(clicked()), this, SLOT(printPage()));
   connect(m_forward,  SIGNAL(clicked()), m_browser, SLOT(forward()));
   connect(m_backward, SIGNAL(clicked()), m_browser, SLOT(back()));
   connect(m_forward,  SIGNAL(clicked()), this, SLOT(updateNavButtons()));
@@ -319,6 +325,16 @@ void pqHelpWindow::showPage(const QUrl& url)
   }
 }
 
+//-----------------------------------------------------------------------------
+void pqHelpWindow::printPage() {
+  QPrinter printer;
+  QPrintDialog dialog(&printer, this);
+  dialog.setWindowTitle(tr("Print Document"));
+  if (dialog.exec() != QDialog::Accepted)
+    return;
+  m_browser->print(&printer);
+}
+
 //-----------------------------------------------------------------------------
 void pqHelpWindow::updateNavButtons()
 {

docs/source/release/v3.10.0/ui.rst

@@ -19,6 +19,7 @@ User Interface
 
 - MantidPlot now respects the system scaling on high-resolution displays. All icons and bitmaps will now be sized
   appropriately rather than being too small to be usable (Windows only).
+- A new Print button has been added to the MantidPlot help window.
 - Masked bins are greyed out in the table view of the workspaces (except for EventWorkspaces):
 
 .. figure:: ../../images/maskedbins.jpg