customizable keyboard shortcuts

dialogs/preferencesdialog.h

@@ -2,6 +2,8 @@
 #define PREFERENCESDIALOG_H
 
 #include <QDialog>
+#include <QKeySequenceEdit>
+class QMenuBar;
 
 namespace Ui {
 class PreferencesDialog;
@@ -15,8 +17,20 @@ public:
     explicit PreferencesDialog(QWidget *parent = 0);
     ~PreferencesDialog();
 
+    void setup_kbd_shortcuts(QMenuBar* menu);
+
 private:
     Ui::PreferencesDialog *ui;
 };
 
+class KeySequenceEditor : public QKeySequenceEdit {
+    Q_OBJECT
+public:
+    KeySequenceEditor(QAction* a);
+private slots:
+    void set_action_shortcut();
+private:
+    QAction* action;
+};
+
 #endif // PREFERENCESDIALOG_H