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

**

** Copyright (C) 2010 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.

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** $QT_END_LICENSE$

**

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

#ifndef QAPPLICATION_P_H

#define QAPPLICATION_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, qcolor_x11.cpp, qfiledialog.cpp

// and many other.  This header file may change from version to version

// without notice, or even be removed.

//

// We mean it.

//

#include "QtGui/qapplication.h"

#include "QtGui/qevent.h"

#include "QtGui/qfont.h"

#include "QtGui/qcursor.h"

#include "QtGui/qregion.h"

#include "QtCore/qmutex.h"

#include "QtCore/qtranslator.h"

#include "QtCore/qbasictimer.h"

#include "QtCore/qhash.h"

#include "QtCore/qpointer.h"

#include "private/qcoreapplication_p.h"

#include "private/qshortcutmap_p.h"

#include <private/qthread_p.h>

#ifdef Q_WS_QWS

#include "QtGui/qscreen_qws.h"

#include <private/qgraphicssystem_qws_p.h>

#endif

#ifdef Q_OS_SYMBIAN

#include <w32std.h>

#endif

QT_BEGIN_NAMESPACE

class QClipboard;

class QGraphicsScene;

class QGraphicsSystem;

class QInputContext;

class QObject;

class QWidget;

class QSocketNotifier;

#ifndef QT_NO_GESTURES

class QGestureManager;

#endif

extern bool qt_is_gui_used;

#ifndef QT_NO_CLIPBOARD

extern QClipboard *qt_clipboard;

#endif

#if defined (Q_OS_WIN32) || defined (Q_OS_CYGWIN) || defined(Q_OS_WINCE)

extern QSysInfo::WinVersion qt_winver;

enum { QT_TABLET_NPACKETQSIZE = 128 };

# ifdef Q_OS_WINCE

  extern DWORD qt_cever;

# endif

#elif defined (Q_OS_MAC)

extern QSysInfo::MacVersion qt_macver;

#endif

#if defined(Q_WS_QWS)

class QWSManager;

class QDirectPainter;

struct QWSServerCleaner { ~QWSServerCleaner(); };

#endif

#ifndef QT_NO_TABLET

struct QTabletDeviceData

{

#ifndef Q_WS_MAC

    int minPressure;

    int maxPressure;

    int minTanPressure;

    int maxTanPressure;

    int minX, maxX, minY, maxY, minZ, maxZ;

    inline QPointF scaleCoord(int coordX, int coordY, int outOriginX, int outExtentX,

                              int outOriginY, int outExtentY) const;

#endif

#if defined(Q_WS_X11) || (defined(Q_WS_MAC) && !defined(QT_MAC_USE_COCOA))

    QPointer<QWidget> widgetToGetPress;

#endif

#ifdef Q_WS_X11

    int deviceType;

    enum {

        TOTAL_XINPUT_EVENTS = 64

    };

    void *device;

    int eventCount;

    long unsigned int eventList[TOTAL_XINPUT_EVENTS]; // XEventClass is in fact a long unsigned int

    int xinput_motion;

    int xinput_key_press;

    int xinput_key_release;

    int xinput_button_press;

    int xinput_button_release;

    int xinput_proximity_in;

    int xinput_proximity_out;

#elif defined(Q_WS_WIN)

    qint64 llId;

    int currentDevice;

    int currentPointerType;

#elif defined(Q_WS_MAC)

    quint64 tabletUniqueID;

    int tabletDeviceType;

    int tabletPointerType;

    int capabilityMask;

#endif

};

static inline int sign(int x)

{

    return x >= 0 ? 1 : -1;

}

#ifndef Q_WS_MAC

inline QPointF QTabletDeviceData::scaleCoord(int coordX, int coordY,

                                            int outOriginX, int outExtentX,

                                            int outOriginY, int outExtentY) const

{

    QPointF ret;

    if (sign(outExtentX) == sign(maxX))

        ret.setX(((coordX - minX) * qAbs(outExtentX) / qAbs(qreal(maxX - minX))) + outOriginX);

    else

        ret.setX(((qAbs(maxX) - (coordX - minX)) * qAbs(outExtentX) / qAbs(qreal(maxX - minX)))

                 + outOriginX);

    if (sign(outExtentY) == sign(maxY))

        ret.setY(((coordY - minY) * qAbs(outExtentY) / qAbs(qreal(maxY - minY))) + outOriginY);

    else

        ret.setY(((qAbs(maxY) - (coordY - minY)) * qAbs(outExtentY) / qAbs(qreal(maxY - minY)))

                 + outOriginY);

    return ret;

}

#endif

typedef QList<QTabletDeviceData> QTabletDeviceDataList;

QTabletDeviceDataList *qt_tablet_devices();

# if defined(Q_WS_MAC)

typedef QHash<int, QTabletDeviceData> QMacTabletHash;

QMacTabletHash *qt_mac_tablet_hash();

# endif

#endif

#ifdef QT3_SUPPORT

extern "C" {

    typedef bool (*Ptrqt_tryAccelEvent)(QWidget *w, QKeyEvent *e);

    typedef bool (*Ptrqt_tryComposeUnicode)(QWidget *w, QKeyEvent *e);

    typedef bool (*Ptrqt_dispatchAccelEvent)(QWidget *w, QKeyEvent *e);

}

#endif

#if defined(Q_WS_WIN)

typedef BOOL (WINAPI *PtrRegisterTouchWindow)(HWND, ULONG);

typedef BOOL (WINAPI *PtrGetTouchInputInfo)(HANDLE, UINT, PVOID, int);

typedef BOOL (WINAPI *PtrCloseTouchInputHandle)(HANDLE);

#ifndef QT_NO_GESTURES

typedef BOOL (WINAPI *PtrGetGestureInfo)(HANDLE, PVOID);

typedef BOOL (WINAPI *PtrGetGestureExtraArgs)(HANDLE, UINT, PBYTE);

typedef BOOL (WINAPI *PtrCloseGestureInfoHandle)(HANDLE);

typedef BOOL (WINAPI *PtrSetGestureConfig)(HWND, DWORD, UINT, PVOID, UINT);

typedef BOOL (WINAPI *PtrGetGestureConfig)(HWND, DWORD, DWORD, PUINT, PVOID, UINT);

typedef BOOL (WINAPI *PtrBeginPanningFeedback)(HWND);

typedef BOOL (WINAPI *PtrUpdatePanningFeedback)(HWND, LONG, LONG, BOOL);

typedef BOOL (WINAPI *PtrEndPanningFeedback)(HWND, BOOL);

#ifndef WM_GESTURE

#  define WM_GESTURE 0x0119

#  define GID_BEGIN                       1

#  define GID_END                         2

#  define GID_ZOOM                        3

#  define GID_PAN                         4

#  define GID_ROTATE                      5

#  define GID_TWOFINGERTAP                6

#  define GID_ROLLOVER                    7

typedef struct tagGESTUREINFO

{

    UINT cbSize;

    DWORD dwFlags;

    DWORD dwID;

    HWND hwndTarget;

    POINTS ptsLocation;

    DWORD dwInstanceID;

    DWORD dwSequenceID;

    ULONGLONG ullArguments;

    UINT cbExtraArgs;

} GESTUREINFO;

#  define GC_PAN                                      0x00000001

#  define GC_PAN_WITH_SINGLE_FINGER_VERTICALLY        0x00000002

#  define GC_PAN_WITH_SINGLE_FINGER_HORIZONTALLY      0x00000004

#  define GC_ZOOM                                     0x00000001

#  define GC_ROTATE                                   0x00000001

typedef struct tagGESTURECONFIG

{

    DWORD dwID;

    DWORD dwWant;

    DWORD dwBlock;

} GESTURECONFIG;

#  define GID_ROTATE_ANGLE_FROM_ARGUMENT(arg) ((((double)(arg) / 65535.0) * 4.0 * 3.14159265) - 2.0*3.14159265)

#endif // WM_GESTURE

#if defined(Q_WS_WINCE_WM) && defined(QT_WINCE_GESTURES)

#undef GID_ZOOM

#define GID_ZOOM 0xf000

#undef GID_ROTATE

#define GID_ROTATE 0xf001

#undef GID_TWOFINGERTAP

#define GID_TWOFINGERTAP 0xf002

#undef GID_ROLLOVER

#define GID_ROLLOVER 0xf003

#endif

#endif // QT_NO_GESTURES

#endif // Q_WS_WIN

class QScopedLoopLevelCounter

{

    QThreadData *threadData;

public:

    QScopedLoopLevelCounter(QThreadData *threadData)

        : threadData(threadData)

    { ++threadData->loopLevel; }

    ~QScopedLoopLevelCounter()

    { --threadData->loopLevel; }

};

typedef QHash<QByteArray, QFont> FontHash;

FontHash *qt_app_fonts_hash();

typedef QHash<QByteArray, QPalette> PaletteHash;

PaletteHash *qt_app_palettes_hash();

class Q_GUI_EXPORT QApplicationPrivate : public QCoreApplicationPrivate

{

    Q_DECLARE_PUBLIC(QApplication)

public:

    QApplicationPrivate(int &argc, char **argv, QApplication::Type type);

    ~QApplicationPrivate();

#if defined(Q_WS_X11)

#ifndef QT_NO_SETTINGS

    static bool x11_apply_settings();

#endif

    static void reset_instance_pointer();

#elif defined(Q_WS_QWS)

    static bool qws_apply_settings();

    static QWidget *findWidget(const QObjectList&, const QPoint &, bool rec);

#endif

    static bool quitOnLastWindowClosed;

    static void emitLastWindowClosed();

#ifdef Q_WS_WINCE

    static int autoMaximizeThreshold;

#endif

    static bool autoSipEnabled;

    static QString desktopStyleKey();

    static QGraphicsSystem *graphicsSystem()

#if !defined(Q_WS_QWS)

    { return graphics_system; }

#else

    { return QScreen::instance()->graphicsSystem(); }

#endif

    void createEventDispatcher();

    QString appName() const;

    static void dispatchEnterLeave(QWidget *enter, QWidget *leave);

    //modality

    static void enterModal(QWidget*);

    static void leaveModal(QWidget*);

    static void enterModal_sys(QWidget*);

    static void leaveModal_sys(QWidget*);

    static bool isBlockedByModal(QWidget *widget);

    static bool modalState();

    static bool tryModalHelper(QWidget *widget, QWidget **rettop = 0);

#ifdef Q_WS_MAC

    static QWidget *tryModalHelper_sys(QWidget *top);

	bool canQuit();

#endif

    bool notify_helper(QObject *receiver, QEvent * e);

    void construct(

#ifdef Q_WS_X11

                   Display *dpy = 0, Qt::HANDLE visual = 0, Qt::HANDLE cmap = 0

#endif

                   );

    void initialize();

    void process_cmdline();

#if defined(Q_WS_X11)

    static void x11_initialize_style();

#endif

    enum KeyPlatform {

        KB_Win = 1,

        KB_Mac = 2,

        KB_X11 = 4,

        KB_KDE = 8,

        KB_Gnome = 16,

        KB_CDE = 32,

        KB_S60 = 64,

        KB_All = 0xffff

    };

    static uint currentPlatform();

    bool inPopupMode() const;

    void closePopup(QWidget *popup);

    void openPopup(QWidget *popup);

    static void setFocusWidget(QWidget *focus, Qt::FocusReason reason);

    static QWidget *focusNextPrevChild_helper(QWidget *toplevel, bool next);

#ifndef QT_NO_SESSIONMANAGER

    QSessionManager *session_manager;

    QString session_id;

    QString session_key;

    bool is_session_restored;

#endif

#ifndef QT_NO_CURSOR

    QList<QCursor> cursor_list;

#endif

#ifndef QT_NO_GRAPHICSVIEW

    // Maintain a list of all scenes to ensure font and palette propagation to

    // all scenes.

    QList<QGraphicsScene *> scene_list;

#endif

    QBasicTimer toolTipWakeUp, toolTipFallAsleep;

    QPoint toolTipPos, toolTipGlobalPos, hoverGlobalPos;

    QPointer<QWidget> toolTipWidget;

#ifndef QT_NO_SHORTCUT

    QShortcutMap shortcutMap;

#endif

#ifdef QT3_SUPPORT

    bool qt_compat_used;

    bool qt_compat_resolved;

    Ptrqt_tryAccelEvent qt_tryAccelEvent;

    Ptrqt_tryComposeUnicode qt_tryComposeUnicode;

    Ptrqt_dispatchAccelEvent qt_dispatchAccelEvent;

    bool use_compat() {

        return qt_tryAccelEvent

               && qt_tryComposeUnicode

               && qt_dispatchAccelEvent;

    }

#endif

    static QInputContext *inputContext;

    static Qt::MouseButtons mouse_buttons;

    static Qt::KeyboardModifiers modifier_buttons;

    static QSize app_strut;

    static QWidgetList *popupWidgets;

    static QStyle *app_style;

    static int app_cspec;

    static QPalette *app_pal;

    static QPalette *sys_pal;

    static QPalette *set_pal;

    static QGraphicsSystem *graphics_system;

    static QString graphics_system_name;

    static bool runtime_graphics_system;

private:

    static QFont *app_font; // private for a reason! Always use QApplication::font() instead!

public:

    static QFont *sys_font;

    static QFont *set_font;

    static QWidget *main_widget;

    static QWidget *focus_widget;

    static QWidget *hidden_focus_widget;

    static QWidget *active_window;

    static QIcon *app_icon;

    static bool obey_desktop_settings;

    static int  cursor_flash_time;

    static int  mouse_double_click_time;

    static int  keyboard_input_time;

#ifndef QT_NO_WHEELEVENT

    static int  wheel_scroll_lines;

#endif

    static bool animate_ui;

    static bool animate_menu;

    static bool animate_tooltip;

    static bool animate_combo;

    static bool fade_menu;

    static bool fade_tooltip;

    static bool animate_toolbox;

    static bool widgetCount; // Coupled with -widgetcount switch

    static bool load_testability; // Coupled with -testability switch

#ifdef Q_WS_MAC

    static bool native_modal_dialog_active;

#endif

    static void setSystemPalette(const QPalette &pal);

    static void setPalette_helper(const QPalette &palette, const char* className, bool clearWidgetPaletteHash);

    static void initializeWidgetPaletteHash();

    static void setSystemFont(const QFont &font);

#if defined(Q_WS_X11)

    static void applyX11SpecificCommandLineArguments(QWidget *main_widget);

#elif defined(Q_WS_QWS)

    static void applyQWSSpecificCommandLineArguments(QWidget *main_widget);

#endif

#ifdef Q_WS_MAC

    static OSStatus globalEventProcessor(EventHandlerCallRef, EventRef, void *);

    static OSStatus globalAppleEventProcessor(const AppleEvent *, AppleEvent *, long);

    static OSStatus tabletProximityCallback(EventHandlerCallRef, EventRef, void *);

#ifdef QT_MAC_USE_COCOA

    static void qt_initAfterNSAppStarted();

    static void setupAppleEvents();

    static void updateOverrideCursor();

    static void disableUsageOfCursorRects(bool disable);

#endif

    static bool qt_mac_apply_settings();

#endif

#ifdef Q_WS_QWS

    QPointer<QWSManager> last_manager;

    QWSServerCleaner qwsServerCleaner;

# ifndef QT_NO_DIRECTPAINTER

    QMap<WId, QDirectPainter *> *directPainters;

# endif

    QRect maxWindowRect(const QScreen *screen) const { return maxWindowRects[screen]; }

    void setMaxWindowRect(const QScreen *screen, int screenNo, const QRect &rect);

    void setScreenTransformation(QScreen *screen, int screenNo, int transformation);

#endif

    static QApplicationPrivate *instance() { return self; }

    static QString styleOverride;

    static int app_compile_version;

#ifdef QT_KEYPAD_NAVIGATION

    static QWidget *oldEditFocus;

    static Qt::NavigationMode navigationMode;

#endif

#if defined(Q_WS_MAC) || defined(Q_WS_X11)

    void _q_alertTimeOut();

    QHash<QWidget *, QTimer *> alertTimerHash;

#endif

#ifndef QT_NO_STYLE_STYLESHEET

    static QString styleSheet;

#endif

    static QPointer<QWidget> leaveAfterRelease;

    static QWidget *pickMouseReceiver(QWidget *candidate, const QPoint &globalPos, QPoint &pos,

                                      QEvent::Type type, Qt::MouseButtons buttons,

                                      QWidget *buttonDown, QWidget *alienWidget);

    static bool sendMouseEvent(QWidget *receiver, QMouseEvent *event, QWidget *alienWidget,

                               QWidget *native, QWidget **buttonDown, QPointer<QWidget> &lastMouseReceiver,

                               bool spontaneous = true);

#ifdef Q_OS_SYMBIAN

    static void setNavigationMode(Qt::NavigationMode mode);

    static TUint resolveS60ScanCode(TInt scanCode, TUint keysym);

    QSet<WId> nativeWindows;

    int symbianProcessWsEvent(const QSymbianEvent *symbianEvent);

    int symbianHandleCommand(const QSymbianEvent *symbianEvent);

    int symbianResourceChange(const QSymbianEvent *symbianEvent);

#endif

#if defined(Q_WS_WIN) || defined(Q_WS_X11) || defined (Q_WS_QWS) || defined(Q_WS_MAC)

    void sendSyntheticEnterLeave(QWidget *widget);