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** General Public License version 2.1 as published by the Free Software

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****************************************************************************/

#ifndef QWIZARD_WIN_P_H

#define QWIZARD_WIN_P_H

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists purely as an

// implementation detail.  This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

#ifndef QT_NO_WIZARD

#ifndef QT_NO_STYLE_WINDOWSVISTA

#include <qt_windows.h>

#include <qobject.h>

#include <qwidget.h>

#include <qabstractbutton.h>

#include <QtGui/private/qwidget_p.h>

QT_BEGIN_NAMESPACE

class QVistaBackButton : public QAbstractButton

{

public:

    QVistaBackButton(QWidget *widget);

    QSize sizeHint() const;

    inline QSize minimumSizeHint() const

    { return sizeHint(); }

    void enterEvent(QEvent *event);

    void leaveEvent(QEvent *event);

    void paintEvent(QPaintEvent *event);

};

class QWizard;

class QVistaHelper : public QObject

{

    Q_OBJECT

public:

    QVistaHelper(QWizard *wizard);

    ~QVistaHelper();

    enum TitleBarChangeType { NormalTitleBar, ExtendedTitleBar };

    bool setDWMTitleBar(TitleBarChangeType type);

    void setTitleBarIconAndCaptionVisible(bool visible);

    void mouseEvent(QEvent *event);

    bool handleWinEvent(MSG *message, long *result);

    void resizeEvent(QResizeEvent *event);

    void paintEvent(QPaintEvent *event);

    QVistaBackButton *backButton() const { return backButton_; }

    void disconnectBackButton() { if (backButton_) backButton_->disconnect(); }

    void hideBackButton() { if (backButton_) backButton_->hide(); }

    void setWindowPosHack();

    QColor basicWindowFrameColor();

    enum VistaState { VistaAero, VistaBasic, Classic, Dirty };

    static VistaState vistaState();

    static int titleBarSize() { return frameSize() + captionSize(); }

    static int topPadding() { return 8; }

    static int topOffset() { return titleBarSize() + (vistaState() == VistaAero ? 13 : 3); }

private:

    static HFONT getCaptionFont(HANDLE hTheme);

    bool drawTitleText(QPainter *painter, const QString &text, const QRect &rect, HDC hdc);

    static bool drawBlackRect(const QRect &rect, HDC hdc);

    static int frameSize() { return GetSystemMetrics(SM_CYSIZEFRAME); }

    static int captionSize() { return GetSystemMetrics(SM_CYCAPTION); }

    static int backButtonSize() { return 31; } // ### should be queried from back button itself

    static int iconSize() { return 16; } // Standard Aero

    static int padding() { return 7; } // Standard Aero

    static int leftMargin() { return backButtonSize() + padding(); }

    static int glowSize() { return 10; }

    int titleOffset();

    bool resolveSymbols();

    void drawTitleBar(QPainter *painter);

    void setMouseCursor(QPoint pos);

    void collapseTopFrameStrut();

    bool winEvent(MSG *message, long *result);

    void mouseMoveEvent(QMouseEvent *event);

    void mousePressEvent(QMouseEvent *event);

    void mouseReleaseEvent(QMouseEvent *event);

    bool eventFilter(QObject *obj, QEvent *event);

    static bool is_vista;

    static VistaState cachedVistaState;

    static bool isCompositionEnabled();

    static bool isThemeActive();

    enum Changes { resizeTop, movePosition, noChange } change;

    QPoint pressedPos;

    bool pressed;

    QRect rtTop;

    QRect rtTitle;

    QWizard *wizard;

    QVistaBackButton *backButton_;

};

QT_END_NAMESPACE

#endif // QT_NO_STYLE_WINDOWSVISTA

#endif // QT_NO_WIZARD

#endif // QWIZARD_WIN_P_H