Add an option to the ctkConsole to add/set the completion shortcuts

As of now, the user can add shortcuts to the console to trigger the
completion.
Default key (tab) is the same as before to preserve backward compatibility.

Libs/Scripting/Python/Widgets/Testing/Cpp/ctkPythonConsoleTest1.cpp

@@ -26,6 +26,7 @@
 // CTK includes
 #include "ctkPythonConsole.h"
 #include "ctkAbstractPythonManager.h"
+#include "ctkCompleter.h"
 
 // STD includes
 #include <cstdlib>
@@ -42,6 +43,12 @@ int ctkPythonConsoleTest1(int argc, char * argv [] )
   ctkAbstractPythonManager pythonManager;
   pythonConsole.initialize(&pythonManager);
 
+  QList<QKeySequence> otherShortcuts;
+  otherShortcuts << QKeySequence(Qt::CTRL + Qt::Key_Space);
+  otherShortcuts << Qt::Key_F1;
+  pythonConsole.setCompleterShortcuts(otherShortcuts);
+  pythonConsole.addCompleterShortcut(Qt::Key_Tab);
+
   QObject::connect(&button, SIGNAL(clicked()), &pythonConsole, SLOT(show()));
 
   button.show();

Libs/Widgets/ctkConsole.cpp

@@ -94,7 +94,8 @@ ctkConsolePrivate::ctkConsolePrivate(ctkConsole& object) :
   InteractivePosition(documentEnd()),
   MultilineStatement(false), Ps1("$ "), Ps2("> "),
   EditorHints(ctkConsole::AutomaticIndentation | ctkConsole::RemoveTrailingSpaces),
-  ScrollbarAtBottom(false)
+  ScrollbarAtBottom(false),
+  CompleterShortcuts(QList<QKeySequence>() << Qt::Key_Tab)
 {
 }
 
@@ -402,7 +403,7 @@ void ctkConsolePrivate::keyPressEvent(QKeyEvent* e)
     return;
     }
 
-  if (e->key() == Qt::Key_Tab)
+  if (this->CompleterShortcuts.contains(e->key() + e->modifiers()))
     {
     e->accept();
     this->updateCompleter();
@@ -953,6 +954,26 @@ void ctkConsole::setScrollBarPolicy(const Qt::ScrollBarPolicy& newScrollBarPolic
 }
 
 //-----------------------------------------------------------------------------
+CTK_GET_CPP(ctkConsole, QList<QKeySequence>, completerShortcuts, CompleterShortcuts);
+
+//-----------------------------------------------------------------------------
+void ctkConsole::setCompleterShortcuts(const QList<QKeySequence>& keys)
+{
+  Q_D(ctkConsole);
+  d->CompleterShortcuts = keys;
+}
+
+//-----------------------------------------------------------------------------
+void ctkConsole::addCompleterShortcut(const QKeySequence& key)
+{
+  Q_D(ctkConsole);
+  if (!d->CompleterShortcuts.contains(key))
+    {
+    d->CompleterShortcuts.append(key);
+    }
+}
+
+//-----------------------------------------------------------------------------
 void ctkConsole::exec(const QString& command)
 {
   Q_D(ctkConsole);

Libs/Widgets/ctkConsole.h

@@ -80,7 +80,8 @@ class CTK_WIDGETS_EXPORT ctkConsole : public QWidget
   Q_PROPERTY(EditorHints editorHints READ editorHints WRITE setEditorHints)
   Q_ENUMS(Qt::ScrollBarPolicy)
   Q_PROPERTY(Qt::ScrollBarPolicy scrollBarPolicy READ scrollBarPolicy WRITE setScrollBarPolicy)
-  
+  Q_PROPERTY(QList<QKeySequence> completerShortcuts READ completerShortcuts WRITE setCompleterShortcuts)
+
 public:
 
   enum EditorHint
@@ -175,6 +176,20 @@ public:
 
   static QString stdInRedirectCallBack(void * callData);
 
+  /// Get the list of shortcuts that trigger the completion options.
+  /// \sa setCompleterShortcuts(), addCompleterShortcut()
+  QList<QKeySequence> completerShortcuts()const;
+
+  /// Set the list of shortcuts showing the completion options.
+  /// Default is simply Qt::Key_Tab.
+  /// \sa completerShortcuts(), addCompleterShortcut()
+  void setCompleterShortcuts(const QList<QKeySequence>& keys);
+
+  /// Convenience method to add a key sequence to the list of shortcuts that
+  /// show the completion options.
+  /// \sa completerShortcuts(), setCompleterShortcuts()
+  void addCompleterShortcut(const QKeySequence& key);
+
 Q_SIGNALS:
 
   /// This signal emitted before and after a command is executed

Libs/Widgets/ctkConsole_p.h

@@ -185,6 +185,8 @@ public:
   bool ScrollbarAtBottom;
 
   QPointer<QEventLoop> InputEventLoop;
+
+  QList<QKeySequence> CompleterShortcuts;
 };