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

**

** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the QtGui module of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:LGPL$

** No Commercial Usage

** This file contains pre-release code and may not be distributed.

** You may use this file in accordance with the terms and conditions

** contained in the Technology Preview License Agreement accompanying

** this package.

**

** GNU Lesser General Public License Usage

** Alternatively, this file may be used under the terms of the GNU Lesser

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

** Foundation and appearing in the file LICENSE.LGPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU Lesser General Public License version 2.1 requirements

** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at qt-info@nokia.com.

**

**

**

**

**

**

**

**

** $QT_END_LICENSE$

**

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

#ifndef QWINDOWSXPSTYLE_P_H

#define QWINDOWSXPSTYLE_P_H

//

//  W A R N I N G

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

//

// This file is not part of the Qt API.  It exists for the convenience

// of qapplication_*.cpp, qwidget*.cpp and qfiledialog.cpp.  This header

// file may change from version to version without notice, or even be removed.

//

// We mean it.

//

#include "qwindowsxpstyle.h"

#include "qwindowsstyle_p.h"

#include <qmap.h>

#include <qt_windows.h>

// Note, these tests are duplicated in qwizard_win.cpp.

#ifdef Q_CC_GNU

#  include <w32api.h>

#  if (__W32API_MAJOR_VERSION >= 3 || (__W32API_MAJOR_VERSION == 2 && __W32API_MINOR_VERSION >= 5))

#    ifdef _WIN32_WINNT

#      undef _WIN32_WINNT

#    endif

#    define _WIN32_WINNT 0x0501

#    include <commctrl.h>

#  endif

#endif

#include <uxtheme.h>

#if WINVER >= 0x0600

#include <vssym32.h>

#else

#include <tmschema.h>

#endif

#include <limits.h>

QT_BEGIN_NAMESPACE

// Older Platform SDKs do not have the extended DrawThemeBackgroundEx

// function. We add the needed parts here, and use the extended

// function dynamically, if available in uxtheme.dll. Else, we revert

// back to using the DrawThemeBackground function.

#ifndef DTBG_OMITBORDER

#  ifndef DTBG_CLIPRECT

#   define DTBG_CLIPRECT        0x00000001

#  endif

#  ifndef DTBG_DRAWSOLID

#   define DTBG_DRAWSOLID       0x00000002

#  endif

#  ifndef DTBG_OMITBORDER

#   define DTBG_OMITBORDER      0x00000004

#  endif

#  ifndef DTBG_OMITCONTENT

#   define DTBG_OMITCONTENT     0x00000008

#  endif

#  ifndef DTBG_COMPUTINGREGION

#   define DTBG_COMPUTINGREGION 0x00000010

#  endif

#  ifndef DTBG_MIRRORDC

#   define DTBG_MIRRORDC        0x00000020

#  endif

    typedef struct _DTBGOPTS

    {

        DWORD dwSize;

        DWORD dwFlags;

        RECT rcClip;

    } DTBGOPTS, *PDTBGOPTS;

#endif // _DTBGOPTS

// Undefined for some compile environments

#ifndef TMT_TEXTCOLOR

#  define TMT_TEXTCOLOR 3803

#endif

#ifndef TMT_BORDERCOLORHINT

#  define TMT_BORDERCOLORHINT 3822

#endif

#ifndef TMT_BORDERSIZE

#  define TMT_BORDERSIZE 2403

#endif

#ifndef TMT_BORDERONLY

#  define TMT_BORDERONLY 2203

#endif

#ifndef TMT_TRANSPARENTCOLOR

#  define TMT_TRANSPARENTCOLOR 3809

#endif

#ifndef TMT_CAPTIONMARGINS

#  define TMT_CAPTIONMARGINS 3603

#endif

#ifndef TMT_CONTENTMARGINS

#  define TMT_CONTENTMARGINS 3602

#endif

#ifndef TMT_SIZINGMARGINS

#  define TMT_SIZINGMARGINS 3601

#endif

#ifndef TMT_GLYPHTYPE

#  define TMT_GLYPHTYPE 4012

#endif

#ifndef TMT_BGTYPE

#  define TMT_BGTYPE 4001

#endif

#ifndef TMT_TEXTSHADOWTYPE

#    define TMT_TEXTSHADOWTYPE 4010

#endif

#ifndef TMT_BORDERCOLOR

#    define TMT_BORDERCOLOR 3801

#endif

#ifndef BT_IMAGEFILE

#  define BT_IMAGEFILE 0

#endif

#ifndef BT_BORDERFILL

#  define BT_BORDERFILL 1

#endif

#ifndef BT_NONE

#  define BT_NONE 2

#endif

#ifndef TMT_FILLCOLOR

#  define TMT_FILLCOLOR 3802

#endif

#ifndef TMT_PROGRESSCHUNKSIZE

#  define TMT_PROGRESSCHUNKSIZE 2411

#endif

// TMT_TEXTSHADOWCOLOR is wrongly defined in mingw

#if TMT_TEXTSHADOWCOLOR != 3818

#undef TMT_TEXTSHADOWCOLOR

#define TMT_TEXTSHADOWCOLOR 3818

#endif

#ifndef TST_NONE

#  define TST_NONE 0

#endif

#ifndef GT_NONE

#  define GT_NONE 0

#endif

#ifndef GT_IMAGEGLYPH

#  define GT_IMAGEGLYPH 1

#endif

// These defines are missing from the tmschema, but still exist as

// states for their parts

#ifndef MINBS_INACTIVE

#define MINBS_INACTIVE 5

#endif

#ifndef MAXBS_INACTIVE

#define MAXBS_INACTIVE 5

#endif

#ifndef RBS_INACTIVE

#define RBS_INACTIVE 5

#endif

#ifndef HBS_INACTIVE

#define HBS_INACTIVE 5

#endif

#ifndef CBS_INACTIVE

#define CBS_INACTIVE 5

#endif

// Uncomment define below to build debug assisting code, and output

// #define DEBUG_XP_STYLE

#if !defined(QT_NO_STYLE_WINDOWSXP)

// Declarations -----------------------------------------------------------------------------------

class XPThemeData

{

public:

    XPThemeData(const QWidget *w = 0, QPainter *p = 0, const QString &theme = QString(),

                int part = 0, int state = 0, const QRect &r = QRect())

        : widget(w), painter(p), name(theme), htheme(0), partId(part), stateId(state),

          mirrorHorizontally(false), mirrorVertically(false), noBorder(false),

          noContent(false), rotate(0), rect(r)

    {}

    HRGN mask();

    HTHEME handle();

    RECT toRECT(const QRect &qr);

    bool isValid();

    const QWidget *widget;

    QPainter *painter;

    QString name;

    HTHEME htheme;

    int partId;

    int stateId;

    uint mirrorHorizontally : 1;

    uint mirrorVertically : 1;

    uint noBorder : 1;

    uint noContent : 1;

    uint rotate;

    QRect rect;

};

struct ThemeMapKey {

    QString name;

    int partId;

    int stateId;

    bool noBorder;

    bool noContent;

    ThemeMapKey() : partId(-1), stateId(-1) {}

    ThemeMapKey(const XPThemeData &data)

        : name(data.name), partId(data.partId), stateId(data.stateId),

        noBorder(data.noBorder), noContent(data.noContent) {}

};

inline uint qHash(const ThemeMapKey &key)

{ return qHash(key.name) ^ key.partId ^ key.stateId; }

inline bool operator==(const ThemeMapKey &k1, const ThemeMapKey &k2)

{

    return k1.name == k2.name

           && k1.partId == k2.partId

           && k1.stateId == k2.stateId;

}

enum AlphaChannelType {

    UnknownAlpha = -1,          // Alpha of part & state not yet known

    NoAlpha,                    // Totally opaque, no need to touch alpha (RGB)

    MaskAlpha,                  // Alpha channel must be fixed            (ARGB)

    RealAlpha                   // Proper alpha values from Windows       (ARGB_Premultiplied)

};

struct ThemeMapData {

    AlphaChannelType alphaType; // Which type of alpha on part & state

    bool dataValid         : 1; // Only used to detect if hash value is ok

    bool partIsTransparent : 1;

    bool hasAnyData        : 1; // False = part & state has not data, NOP

    bool hasAlphaChannel   : 1; // True =  part & state has real Alpha

    bool wasAlphaSwapped   : 1; // True =  alpha channel needs to be swapped

    bool hadInvalidAlpha   : 1; // True =  alpha channel contained invalid alpha values

    ThemeMapData() : dataValid(false), partIsTransparent(false), hasAnyData(false),

                     hasAlphaChannel(false), wasAlphaSwapped(false), hadInvalidAlpha(false) {}

};

class QWindowsXPStylePrivate : public QWindowsStylePrivate

{

    Q_DECLARE_PUBLIC(QWindowsXPStyle)

public:

    QWindowsXPStylePrivate()

        : QWindowsStylePrivate(), hasInitColors(false), bufferDC(0), bufferBitmap(0), nullBitmap(0),

          bufferPixels(0), bufferW(0), bufferH(0)

    { init(); }

    ~QWindowsXPStylePrivate()

    { cleanup(); }

    static HWND winId(const QWidget *widget);

    void init(bool force = false);

    void cleanup(bool force = false);

    void cleanupHandleMap();

    const QPixmap *tabBody(QWidget *widget);

    HBITMAP buffer(int w = 0, int h = 0);

    HDC bufferHDC()

    { return bufferDC;}

    static bool resolveSymbols();

    static bool useXP(bool update = false);

    bool isTransparent(XPThemeData &themeData);

    QRegion region(XPThemeData &themeData);

    void setTransparency(QWidget *widget, XPThemeData &themeData);

    void drawBackground(XPThemeData &themeData);

    void drawBackgroundThruNativeBuffer(XPThemeData &themeData);

    void drawBackgroundDirectly(XPThemeData &themeData);

    bool hasAnyData(const QRect &rect);

    bool hasAlphaChannel(const QRect &rect);

    bool fixAlphaChannel(const QRect &rect);

    bool swapAlphaChannel(const QRect &rect, bool allPixels = false);

    QRgb groupBoxTextColor;

    QRgb groupBoxTextColorDisabled;

    QRgb sliderTickColor;

    bool hasInitColors;

    static QMap<QString,HTHEME> *handleMap;

    QIcon dockFloat, dockClose;

private:

#ifdef DEBUG_XP_STYLE

    void dumpNativeDIB(int w, int h);

    void showProperties(XPThemeData &themeData);

#endif

    static QBasicAtomicInt ref;

    static bool use_xp;

    static QWidget *limboWidget;

    static QPixmap *tabbody;

    QHash<ThemeMapKey, ThemeMapData> alphaCache;

    HDC bufferDC;

    HBITMAP bufferBitmap;

    HBITMAP nullBitmap;

    uchar *bufferPixels;

    int bufferW, bufferH;

};

#endif // QT_NO_STYLE_WINDOWS

QT_END_NAMESPACE

#endif //QWINDOWSXPSTYLE_P_H