text: ﻿/****************************************************************************
  **
  ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
  ** Contact: http://www.qt-project.org/legal
  **
  ** This file is part of the Qt Solutions component.
  **
  ** $QT_BEGIN_LICENSE:BSD$
  ** You may use this file under the terms of the BSD license as follows:
  **
  ** "Redistribution and use in source and binary forms, with or without
  ** modification, are permitted provided that the following conditions are
  ** met:
  **   * Redistributions of source code must retain the above copyright
  **     notice, this list of conditions and the following disclaimer.
  **   * Redistributions in binary form must reproduce the above copyright
  **     notice, this list of conditions and the following disclaimer in
  **     the documentation and/or other materials provided with the
  **     distribution.
  **   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
  **     of its contributors may be used to endorse or promote products derived
  **     from this software without specific prior written permission.
  **
  **
  ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
  **
  ** $QT_END_LICENSE$
  **
  ****************************************************************************/
  
  
  // Declaration of the QWinWidget classes
  
  #ifndef QWINWIDGET_H
  #define QWINWIDGET_H
  
  #include <QWidget>
  
  class CWnd;
  
  #if defined(Q_OS_WIN)
  #  if !defined(QT_QTWINMIGRATE_EXPORT) && !defined(QT_QTWINMIGRATE_IMPORT)
  #    define QT_QTWINMIGRATE_EXPORT
  #  elif defined(QT_QTWINMIGRATE_IMPORT)
  #    if defined(QT_QTWINMIGRATE_EXPORT)
  #      undef QT_QTWINMIGRATE_EXPORT
  #    endif
  #    define QT_QTWINMIGRATE_EXPORT __declspec(dllimport)
  #  elif defined(QT_QTWINMIGRATE_EXPORT)
  #    undef QT_QTWINMIGRATE_EXPORT
  #    define QT_QTWINMIGRATE_EXPORT __declspec(dllexport)
  #  endif
  #else
  #  define QT_QTWINMIGRATE_EXPORT
  #endif
  
  class QT_QTWINMIGRATE_EXPORT QWinWidget : public QWidget
  {
      Q_OBJECT
  public:
      QWinWidget( HWND hParentWnd, QObject *parent = 0, Qt::WindowFlags f = 0 );
      QWinWidget(QObject *parent = 0, Qt::WindowFlags f = 0 );
  #ifdef QTWINMIGRATE_WITHMFC
      QWinWidget( CWnd *parnetWnd, QObject *parent = 0, Qt::WindowFlags f = 0 );
  #endif
      ~QWinWidget();
  
      void init(HWND hParentWnd);
      void show();
      void center();
      void showCentered();
  
      HWND parentWindow() const;
  
  protected:
      void childEvent( QChildEvent *e );
      bool eventFilter( QObject *o, QEvent *e );
  
      bool focusNextPrevChild(bool next);
      void focusInEvent(QFocusEvent *e);
  #if QT_VERSION >= 0x050000
      bool nativeEvent(const QByteArray &eventType, void *message, long *result);
  #else
      bool winEvent(MSG *msg, long *result);
  #endif
  
  private:
      void init();
  
      void saveFocus();
      void resetFocus();
  
      HWND hParent;
      HWND prevFocus;
      bool reenable_parent;
  };
  
  #endif // QWINWIDGET_H
  