From 52071c71ddfde1354e6c17737660a3d161d0bc89 Mon Sep 17 00:00:00 2001
From: Alessandro Portale <aportale@trolltech.com>
Date: Tue, 26 May 2009 20:59:55 +0200
Subject: Introducing QKeyEventSoftKey helper class. It maps softkeys to actual
 key events. Making it easy and non-intrusive to add softkey usage to existing
 widgets.

---
 src/gui/widgets/qsoftkeystack.cpp | 24 ++++++++++++++++++++++++
 src/gui/widgets/qsoftkeystack_p.h | 14 ++++++++++++++
 2 files changed, 38 insertions(+)

diff --git a/src/gui/widgets/qsoftkeystack.cpp b/src/gui/widgets/qsoftkeystack.cpp
index 0054c6b..3591dc1 100644
--- a/src/gui/widgets/qsoftkeystack.cpp
+++ b/src/gui/widgets/qsoftkeystack.cpp
@@ -43,6 +43,7 @@
 #include "qsoftkeystack_p.h"
 #include "qapplication.h"
 #include "qmainwindow.h"
+#include "qevent.h"
 
 static bool isSame(const QSoftkeySet& a, const QSoftkeySet& b)
 {
@@ -228,3 +229,26 @@ void QSoftKeyStackPrivate::setNativeSoftKeys()
 {
 }
 #endif // !defined(Q_WS_S60)
+
+QKeyEventSoftKey::QKeyEventSoftKey(QSoftKeyAction *softKeyAction, Qt::Key key, QObject *parent)
+    : QObject(parent)
+    , m_softKeyAction(softKeyAction)
+    , m_key(key)
+{
+}
+
+void QKeyEventSoftKey::addSoftKey(QSoftKeyAction::StandardRole standardRole, Qt::Key key, QWidget *actionWidget)
+{
+    QSoftKeyStack *stack = QSoftKeyStack::softKeyStackOfWidget(actionWidget);
+    if (!stack)
+        return;
+    QSoftKeyAction *action = new QSoftKeyAction(standardRole, actionWidget);
+    QKeyEventSoftKey *softKey = new QKeyEventSoftKey(action, key, actionWidget);
+    connect(action, SIGNAL(triggered()), softKey, SLOT(sendKeyEvent()));
+    stack->push(action);
+}
+
+void QKeyEventSoftKey::sendKeyEvent()
+{
+    QApplication::postEvent(parent(), new QKeyEvent(QEvent::KeyPress, m_key, Qt::NoModifier));
+}
diff --git a/src/gui/widgets/qsoftkeystack_p.h b/src/gui/widgets/qsoftkeystack_p.h
index b698178..e728cbb 100644
--- a/src/gui/widgets/qsoftkeystack_p.h
+++ b/src/gui/widgets/qsoftkeystack_p.h
@@ -70,6 +70,7 @@ QT_BEGIN_NAMESPACE
 
 class QSoftKeyStackPrivate : public QObjectPrivate
 {
+    Q_DECLARE_PUBLIC(QSoftKeyStack);
 public:
     QSoftKeyStackPrivate();
     ~QSoftKeyStackPrivate();
@@ -91,6 +92,19 @@ private:
     QStack <QSoftkeySet> softKeyStack;
 };
 
+class QKeyEventSoftKey : QObject
+{
+    Q_OBJECT
+public:
+    QKeyEventSoftKey(QSoftKeyAction *softKeyAction, Qt::Key key, QObject *parent);
+    static void addSoftKey(QSoftKeyAction::StandardRole standardRole, Qt::Key key, QWidget *actionWidget);
+private:
+    QSoftKeyAction *m_softKeyAction;
+    Qt::Key m_key;
+private Q_SLOTS:
+    void sendKeyEvent();
+};
+
 QT_END_NAMESPACE
 
 #endif // QSOFTKEYSTACK_P_H
-- 
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