diff widgets/NotifyingToolButton.h @ 1203:ff042979331b 3.0-integration

Merge from branch svg, and thus (in some subrepos) from levelpanwidget

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widgets/NotifyingToolButton.h	Mon Dec 19 16:34:38 2016 +0000
@@ -0,0 +1,47 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Sonic Visualiser
+    An audio file viewer and annotation editor.
+    Centre for Digital Music, Queen Mary, University of London.
+    This file copyright 2007 QMUL.
+    
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+#ifndef SV_NOTIFYING_TOOL_BUTTON_H
+#define SV_NOTIFYING_TOOL_BUTTON_H
+
+#include <QToolButton>
+
+/**
+ * Very trivial enhancement to QToolButton to make it emit signals
+ * when the mouse enters and leaves (for context help). See also
+ * NotifyingPushButton
+ */
+
+class NotifyingToolButton : public QToolButton
+{
+    Q_OBJECT
+
+public:
+    NotifyingToolButton(QWidget *parent = 0) :
+        QToolButton(parent) { }
+
+    virtual ~NotifyingToolButton();
+
+signals:
+    void mouseEntered();
+    void mouseLeft();
+
+protected:
+    virtual void enterEvent(QEvent *);
+    virtual void leaveEvent(QEvent *);
+};
+
+#endif
+