view widgets/NotifyingPushButton.h @ 190:53835534a9d3

* Allow user to activate a pane by clicking on the tab for its currently active
  layer.  Formerly nothing happened if you clicked on the tab that was already
  topmost in a given property stack, because the tab widget only emitted a signal
  if the current tab changed.  We want this to switch focus back to the pane if
  another one has been active in the mean time.
* Make the thumbwheels look a bit round.

/* -*- 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 _NOTIFYING_PUSH_BUTTON_H_
#define _NOTIFYING_PUSH_BUTTON_H_

#include <QPushButton>

/**
 * Very trivial enhancement to QPushButton to make it emit signals when
 * the mouse enters and leaves (for context help).
 */

class NotifyingPushButton : public QPushButton
{
    Q_OBJECT
public:

    NotifyingPushButton(QWidget *parent = 0) :
        QPushButton(parent) { }

    virtual ~NotifyingPushButton();

signals:
    void mouseEntered();
    void mouseLeft();

protected:
    virtual void enterEvent(QEvent *);
    virtual void leaveEvent(QEvent *);
};

#endif