/////////////////////////////////////////////////////////////////////////////

// Name:        wx/utils.h

// Purpose:     Miscellaneous utilities

// Author:      Julian Smart

// Created:     29/01/98

// Copyright:   (c) 1998 Julian Smart

// Licence:     wxWindows licence

/////////////////////////////////////////////////////////////////////////////

#ifndef _WX_UTILS_H_

#define _WX_UTILS_H_

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

// headers

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

#include "wx/object.h"

#include "wx/list.h"

#include "wx/filefn.h"

#include "wx/versioninfo.h"

#include "wx/meta/implicitconversion.h"

#if wxUSE_GUI

    #include "wx/gdicmn.h"

    #include "wx/mousestate.h"

    #include "wx/vector.h"

#endif

class WXDLLIMPEXP_FWD_BASE wxArrayString;

class WXDLLIMPEXP_FWD_BASE wxArrayInt;

// need this for wxGetDiskSpace() as we can't, unfortunately, forward declare

// wxLongLong

#include "wx/longlong.h"

// needed for wxOperatingSystemId, wxLinuxDistributionInfo

#include "wx/platinfo.h"

// This is a hack, but this header used to include wx/hashmap.h which, in turn,

// included wx/wxcrt.h and it turns out quite some existing code relied on it

// by using the CRT wrapper functions declared there without explicitly

// including that header, so keep including it from here to let it continue to

// compile.

#include "wx/wxcrt.h"

#if defined(__X__)

    #include <dirent.h>

    #include <unistd.h>

#endif

#include <stdio.h>

#include <unordered_map>

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

// Forward declaration

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

class WXDLLIMPEXP_FWD_BASE wxProcess;

class WXDLLIMPEXP_FWD_CORE wxFrame;

class WXDLLIMPEXP_FWD_CORE wxWindow;

class WXDLLIMPEXP_FWD_CORE wxEventLoop;

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

// Arithmetic functions

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

template<typename T1, typename T2>

inline typename wxImplicitConversionType<T1,T2>::value

wxMax(T1 a, T2 b)

{

    typedef typename wxImplicitConversionType<T1,T2>::value ResultType;

    // Cast both operands to the same type before comparing them to avoid

    // warnings about signed/unsigned comparisons from some compilers:

    return static_cast<ResultType>(a) > static_cast<ResultType>(b) ? a : b;

}

wxImplicitConversionType<long, int>::value wxMax<long, int>(long, int)

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{

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    typedef typename wxImplicitConversionType<T1,T2>::value ResultType;

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    // Cast both operands to the same type before comparing them to avoid

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    // warnings about signed/unsigned comparisons from some compilers:

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    return static_cast<ResultType>(a) > static_cast<ResultType>(b) ? a : b;

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}

wxImplicitConversionType<long, long>::value wxMax<long, long>(long, long)

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{

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    typedef typename wxImplicitConversionType<T1,T2>::value ResultType;

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    // Cast both operands to the same type before comparing them to avoid

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    // warnings about signed/unsigned comparisons from some compilers:

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    return static_cast<ResultType>(a) > static_cast<ResultType>(b) ? a : b;

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}

template<typename T1, typename T2>

inline typename wxImplicitConversionType<T1,T2>::value

wxMin(T1 a, T2 b)

{

    typedef typename wxImplicitConversionType<T1,T2>::value ResultType;

    return static_cast<ResultType>(a) < static_cast<ResultType>(b) ? a : b;

}

Unexecuted instantiation: wxImplicitConversionType<unsigned long, unsigned long>::value wxMin<unsigned long, unsigned long>(unsigned long, unsigned long)

wxImplicitConversionType<unsigned short, int>::value wxMin<unsigned short, int>(unsigned short, int)

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{

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    typedef typename wxImplicitConversionType<T1,T2>::value ResultType;

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    return static_cast<ResultType>(a) < static_cast<ResultType>(b) ? a : b;

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}

template<typename T1, typename T2, typename T3>

inline typename wxImplicitConversionType3<T1,T2,T3>::value

wxClip(T1 a, T2 b, T3 c)

{

    typedef typename wxImplicitConversionType3<T1,T2,T3>::value ResultType;

    if ( static_cast<ResultType>(a) < static_cast<ResultType>(b) )

        return b;

    if ( static_cast<ResultType>(a) > static_cast<ResultType>(c) )

        return c;

    return a;

}

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

// wxMemorySize

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

// wxGetFreeMemory can return huge amount of memory on 32-bit platforms as well

// so to always use long long for its result type on all platforms which

// support it

#if wxUSE_LONGLONG

    typedef wxLongLong wxMemorySize;

#else

    typedef long wxMemorySize;

#endif

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

// Miscellaneous functions

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

// Sound the bell

WXDLLIMPEXP_CORE void wxBell();

#if wxUSE_MSGDLG

// Show wxWidgets information

WXDLLIMPEXP_CORE void wxInfoMessageBox(wxWindow* parent);

#endif // wxUSE_MSGDLG

WXDLLIMPEXP_CORE wxVersionInfo wxGetLibraryVersionInfo();

// Get OS description as a user-readable string

WXDLLIMPEXP_BASE wxString wxGetOsDescription();

// Get OS version

WXDLLIMPEXP_BASE wxOperatingSystemId wxGetOsVersion(int *verMaj = nullptr,

                                                    int *verMin = nullptr,

                                                    int *verMicro = nullptr);

// Check is OS version is at least the specified major and minor version

WXDLLIMPEXP_BASE bool wxCheckOsVersion(int majorVsn, int minorVsn = 0, int microVsn = 0);

// Get platform endianness

WXDLLIMPEXP_BASE bool wxIsPlatformLittleEndian();

// Get platform architecture bitness

WXDLLIMPEXP_BASE bool wxIsPlatform64Bit();

// Get machine CPU architecture

WXDLLIMPEXP_BASE wxString wxGetCpuArchitectureName();

// Get native machine CPU architecture

WXDLLIMPEXP_BASE wxString wxGetNativeCpuArchitectureName();

#ifdef __LINUX__

// Get linux-distro information

WXDLLIMPEXP_BASE wxLinuxDistributionInfo wxGetLinuxDistributionInfo();

#endif

// Return a string with the current date/time

WXDLLIMPEXP_BASE wxString wxNow();

// Return path where wxWidgets is installed (mostly useful in Unices)

WXDLLIMPEXP_BASE wxString wxGetInstallPrefix();

// Return path to wxWin data (/usr/share/wx/%{version}) (Unices)

WXDLLIMPEXP_BASE wxString wxGetDataDir();

#if wxUSE_GUI

// Get the state of a key (true if pressed, false if not)

// This is generally most useful getting the state of

// the modifier or toggle keys.

WXDLLIMPEXP_CORE bool wxGetKeyState(wxKeyCode key);

// Don't synthesize KeyUp events holding down a key and producing

// KeyDown events with autorepeat. On by default and always on

// in wxMSW.

WXDLLIMPEXP_CORE bool wxSetDetectableAutoRepeat( bool flag );

// Returns the current state of the mouse position, buttons and modifiers

WXDLLIMPEXP_CORE wxMouseState wxGetMouseState();

#endif // wxUSE_GUI

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

// wxPlatform

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

/*

 * Class to make it easier to specify platform-dependent values

 *

 * Examples:

 *  long val = wxPlatform::If(wxMac, 1).ElseIf(wxGTK, 2).ElseIf(stPDA, 5).Else(3);

 *  wxString strVal = wxPlatform::If(wxMac, wxT("Mac")).ElseIf(wxMSW, wxT("MSW")).Else(wxT("Other"));

 *

 * A custom platform symbol:

 *

 *  #define stPDA 100

 *  #ifdef __WXMSW__

 *      wxPlatform::AddPlatform(stPDA);

 *  #endif

 *

 *  long windowStyle = wxCAPTION | (long) wxPlatform::IfNot(stPDA, wxRESIZE_BORDER);

 *

 */

class WXDLLIMPEXP_BASE wxPlatform

{

public:

    wxPlatform() { Init(); }

    wxPlatform(const wxPlatform& platform) { Copy(platform); }

    void operator = (const wxPlatform& platform) { if (&platform != this) Copy(platform); }

    void Copy(const wxPlatform& platform);

    // Specify an optional default value

    wxPlatform(int defValue) { Init(); m_longValue = (long)defValue; }

    wxPlatform(long defValue) { Init(); m_longValue = defValue; }

    wxPlatform(const wxString& defValue) { Init(); m_stringValue = defValue; }

    wxPlatform(double defValue) { Init(); m_doubleValue = defValue; }

    static wxPlatform If(int platform, long value);

    static wxPlatform IfNot(int platform, long value);

    wxPlatform& ElseIf(int platform, long value);

    wxPlatform& ElseIfNot(int platform, long value);

    wxPlatform& Else(long value);

    static wxPlatform If(int platform, int value) { return If(platform, (long)value); }

    static wxPlatform IfNot(int platform, int value) { return IfNot(platform, (long)value); }

    wxPlatform& ElseIf(int platform, int value) { return ElseIf(platform, (long) value); }

    wxPlatform& ElseIfNot(int platform, int value) { return ElseIfNot(platform, (long) value); }

    wxPlatform& Else(int value) { return Else((long) value); }

    static wxPlatform If(int platform, double value);

    static wxPlatform IfNot(int platform, double value);

    wxPlatform& ElseIf(int platform, double value);

    wxPlatform& ElseIfNot(int platform, double value);

    wxPlatform& Else(double value);

    static wxPlatform If(int platform, const wxString& value);

    static wxPlatform IfNot(int platform, const wxString& value);

    wxPlatform& ElseIf(int platform, const wxString& value);

    wxPlatform& ElseIfNot(int platform, const wxString& value);

    wxPlatform& Else(const wxString& value);

    long GetInteger() const { return m_longValue; }

    const wxString& GetString() const { return m_stringValue; }

    double GetDouble() const { return m_doubleValue; }

    operator int() const { return (int) GetInteger(); }

    operator long() const { return GetInteger(); }

    operator double() const { return GetDouble(); }

    operator const wxString&() const { return GetString(); }

    static void AddPlatform(int platform);

    static bool Is(int platform);

    static void ClearPlatforms();

private:

    void Init() { m_longValue = 0; m_doubleValue = 0.0; }

    long                m_longValue;

    double              m_doubleValue;

    wxString            m_stringValue;

    static wxArrayInt*  sm_customPlatforms;

};

/// Function for testing current platform

inline bool wxPlatformIs(int platform) { return wxPlatform::Is(platform); }

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

// Window ID management

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

// Ensure subsequent IDs don't clash with this one

WXDLLIMPEXP_BASE void wxRegisterId(wxWindowID id);

// Return the current ID

WXDLLIMPEXP_BASE wxWindowID wxGetCurrentId();

// Generate a unique ID

WXDLLIMPEXP_BASE wxWindowID wxNewId();

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

// Various conversions

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

// Convert 2-digit hex number to decimal

WXDLLIMPEXP_BASE int wxHexToDec(const wxString& buf);

// Convert 2-digit hex number to decimal

inline int wxHexToDec(const char* buf)

{

    int firstDigit, secondDigit;

    if (buf[0] >= 'A')

        firstDigit = buf[0] - 'A' + 10;

    else if (buf[0] >= '0')

        firstDigit = buf[0] - '0';

    else

        firstDigit = -1;

    wxCHECK_MSG( firstDigit >= 0 && firstDigit <= 15, -1, wxS("Invalid argument") );

    if (buf[1] >= 'A')

        secondDigit = buf[1] - 'A' + 10;

    else if (buf[1] >= '0')

        secondDigit = buf[1] - '0';

    else

        secondDigit = -1;

    wxCHECK_MSG( secondDigit >= 0 && secondDigit <= 15, -1, wxS("Invalid argument") );

    return firstDigit * 16 + secondDigit;

}

// Convert decimal integer to 2-character hex string

WXDLLIMPEXP_BASE void wxDecToHex(unsigned char dec, wxChar *buf);

WXDLLIMPEXP_BASE void wxDecToHex(unsigned char dec, char* ch1, char* ch2);

WXDLLIMPEXP_BASE wxString wxDecToHex(unsigned char dec);

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

// Security

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

WXDLLIMPEXP_BASE void wxSecureZeroMemory(void *p, size_t n);

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

// Process management

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

// NB: for backwards compatibility reasons the values of wxEXEC_[A]SYNC *must*

//     be 0 and 1, don't change!

enum

{

    // execute the process asynchronously

    wxEXEC_ASYNC    = 0,

    // execute it synchronously, i.e. wait until it finishes

    wxEXEC_SYNC     = 1,

    // under Windows, don't hide the child even if it's IO is redirected (this

    // is done by default)

    wxEXEC_SHOW_CONSOLE   = 2,

    // deprecated synonym for wxEXEC_SHOW_CONSOLE, use the new name as it's

    // more clear

    wxEXEC_NOHIDE = wxEXEC_SHOW_CONSOLE,

    // under Unix, if the process is the group leader then passing wxKILL_CHILDREN to wxKill

    // kills all children as well as pid

    // under Windows (NT family only), sets the CREATE_NEW_PROCESS_GROUP flag,

    // which allows to target Ctrl-Break signal to the spawned process.

    // applies to console processes only.

    wxEXEC_MAKE_GROUP_LEADER = 4,

    // by default synchronous execution disables all program windows to avoid

    // that the user interacts with the program while the child process is

    // running, you can use this flag to prevent this from happening

    wxEXEC_NODISABLE = 8,

    // by default, the event loop is run while waiting for synchronous execution

    // to complete and this flag can be used to simply block the main process

    // until the child process finishes

    wxEXEC_NOEVENTS = 16,

    // under Windows, hide the console of the child process if it has one, even

    // if its IO is not redirected

    wxEXEC_HIDE_CONSOLE = 32,

    // convenient synonym for flags given system()-like behaviour

    wxEXEC_BLOCK = wxEXEC_SYNC | wxEXEC_NOEVENTS

};

// Map storing environment variables.

using wxEnvVariableHashMap = std::unordered_map<wxString, wxString>;

// Used to pass additional parameters for child process to wxExecute(). Could

// be extended with other fields later.

struct wxExecuteEnv

{

    wxString cwd;               // If empty, CWD is not changed.

    wxEnvVariableHashMap env;   // If empty, environment is unchanged.

};

// Execute another program.

//

// If flags contain wxEXEC_SYNC, return -1 on failure and the exit code of the

// process if everything was ok. Otherwise (i.e. if wxEXEC_ASYNC), return 0 on

// failure and the PID of the launched process if ok.

WXDLLIMPEXP_BASE long wxExecute(const wxString& command,

                                int flags = wxEXEC_ASYNC,

                                wxProcess *process = nullptr,

                                const wxExecuteEnv *env = nullptr);

WXDLLIMPEXP_BASE long wxExecute(const char* const* argv,

                                int flags = wxEXEC_ASYNC,

                                wxProcess *process = nullptr,

                                const wxExecuteEnv *env = nullptr);

WXDLLIMPEXP_BASE long wxExecute(const wchar_t* const* argv,

                                int flags = wxEXEC_ASYNC,

                                wxProcess *process = nullptr,

                                const wxExecuteEnv *env = nullptr);

// execute the command capturing its output into an array line by line, this is

// always synchronous

WXDLLIMPEXP_BASE long wxExecute(const wxString& command,

                                wxArrayString& output,

                                int flags = 0,

                                const wxExecuteEnv *env = nullptr);

// also capture stderr (also synchronous)

WXDLLIMPEXP_BASE long wxExecute(const wxString& command,

                                wxArrayString& output,

                                wxArrayString& error,

                                int flags = 0,

                                const wxExecuteEnv *env = nullptr);

#if defined(__WINDOWS__) && wxUSE_IPC

// ask a DDE server to execute the DDE request with given parameters

WXDLLIMPEXP_BASE bool wxExecuteDDE(const wxString& ddeServer,

                                   const wxString& ddeTopic,

                                   const wxString& ddeCommand);

#endif // __WINDOWS__ && wxUSE_IPC

enum wxSignal

{

    wxSIGNONE = 0,  // verify if the process exists under Unix

    wxSIGHUP,

    wxSIGINT,

    wxSIGQUIT,

    wxSIGILL,

    wxSIGTRAP,

    wxSIGABRT,

    wxSIGIOT = wxSIGABRT,   // another name

    wxSIGEMT,

    wxSIGFPE,

    wxSIGKILL,

    wxSIGBUS,

    wxSIGSEGV,

    wxSIGSYS,

    wxSIGPIPE,

    wxSIGALRM,

    wxSIGTERM

    // further signals are different in meaning between different Unix systems

};

enum wxKillError

{

    wxKILL_OK,              // no error

    wxKILL_BAD_SIGNAL,      // no such signal

    wxKILL_ACCESS_DENIED,   // permission denied

    wxKILL_NO_PROCESS,      // no such process

    wxKILL_ERROR            // another, unspecified error

};

enum wxKillFlags

{

    wxKILL_NOCHILDREN = 0,  // don't kill children

    wxKILL_CHILDREN = 1     // kill children

};

enum wxShutdownFlags

{

    wxSHUTDOWN_FORCE    = 1,// can be combined with other flags (MSW-only)

    wxSHUTDOWN_POWEROFF = 2,// power off the computer

    wxSHUTDOWN_REBOOT   = 4,// shutdown and reboot

    wxSHUTDOWN_LOGOFF   = 8 // close session (currently MSW-only)

};

// Shutdown or reboot the PC

WXDLLIMPEXP_BASE bool wxShutdown(int flags = wxSHUTDOWN_POWEROFF);

// send the given signal to the process (only NONE and KILL are supported under

// Windows, all others mean TERM), return 0 if ok and -1 on error

//

// return detailed error in rc is not null

WXDLLIMPEXP_BASE int wxKill(long pid,

                       wxSignal sig = wxSIGTERM,

                       wxKillError *rc = nullptr,

                       int flags = wxKILL_NOCHILDREN);

// Execute a command in an interactive shell window (always synchronously)

// If no command then just the shell

WXDLLIMPEXP_BASE bool wxShell(const wxString& command = wxEmptyString);

// As wxShell(), but must give a (non interactive) command and its output will

// be returned in output array

WXDLLIMPEXP_BASE bool wxShell(const wxString& command, wxArrayString& output);

// Sleep for nSecs seconds

WXDLLIMPEXP_BASE void wxSleep(int nSecs);

// Sleep for a given amount of milliseconds

WXDLLIMPEXP_BASE void wxMilliSleep(unsigned long milliseconds);

// Sleep for a given amount of microseconds

WXDLLIMPEXP_BASE void wxMicroSleep(unsigned long microseconds);

// Get the process id of the current process

WXDLLIMPEXP_BASE unsigned long wxGetProcessId();

// Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)

WXDLLIMPEXP_BASE wxMemorySize wxGetFreeMemory();

#if wxUSE_ON_FATAL_EXCEPTION

// should wxApp::OnFatalException() be called?

WXDLLIMPEXP_BASE bool wxHandleFatalExceptions(bool doit = true);

#endif // wxUSE_ON_FATAL_EXCEPTION

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

// Environment variables

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

// returns true if variable exists (value may be null if you just want to check

// for this)

WXDLLIMPEXP_BASE bool wxGetEnv(const wxString& var, wxString *value);

// set the env var name to the given value, return true on success

WXDLLIMPEXP_BASE bool wxSetEnv(const wxString& var, const wxString& value);

// remove the env var from environment

WXDLLIMPEXP_BASE bool wxUnsetEnv(const wxString& var);

// Retrieve the complete environment by filling specified map.

// Returns true on success or false if an error occurred.

WXDLLIMPEXP_BASE bool wxGetEnvMap(wxEnvVariableHashMap *map);

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

// Network and username functions.

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

// NB: "char *" functions are deprecated, use wxString ones!

// Get eMail address

WXDLLIMPEXP_BASE bool wxGetEmailAddress(wxChar *buf, int maxSize);

WXDLLIMPEXP_BASE wxString wxGetEmailAddress();

// Get hostname.

WXDLLIMPEXP_BASE bool wxGetHostName(wxChar *buf, int maxSize);

WXDLLIMPEXP_BASE wxString wxGetHostName();

// Get FQDN

WXDLLIMPEXP_BASE wxString wxGetFullHostName();

WXDLLIMPEXP_BASE bool wxGetFullHostName(wxChar *buf, int maxSize);

// Get user ID e.g. jacs (this is known as login name under Unix)

WXDLLIMPEXP_BASE bool wxGetUserId(wxChar *buf, int maxSize);

WXDLLIMPEXP_BASE wxString wxGetUserId();

// Get user name e.g. Julian Smart

WXDLLIMPEXP_BASE bool wxGetUserName(wxChar *buf, int maxSize);

WXDLLIMPEXP_BASE wxString wxGetUserName();

// Get current Home dir and copy to dest (returns pstr->c_str())

WXDLLIMPEXP_BASE wxString wxGetHomeDir();

WXDLLIMPEXP_BASE const wxChar* wxGetHomeDir(wxString *pstr);

// Get the user's (by default use the current user name) home dir,

// return empty string on error

WXDLLIMPEXP_BASE wxString wxGetUserHome(const wxString& user = wxEmptyString);

#if wxUSE_LONGLONG

    typedef wxLongLong wxDiskspaceSize_t;

#else

    typedef long wxDiskspaceSize_t;

#endif

// get number of total/free bytes on the disk where path belongs

WXDLLIMPEXP_BASE bool wxGetDiskSpace(const wxString& path,

                                     wxDiskspaceSize_t *pTotal = nullptr,

                                     wxDiskspaceSize_t *pFree = nullptr);

typedef int (*wxSortCallback)(const void* pItem1,

                              const void* pItem2,

                              const void* user_data);

#if WXWIN_COMPATIBILITY_3_2

wxDEPRECATED_MSG("Use std::sort instead")

WXDLLIMPEXP_BASE void wxQsort(void* pbase, size_t total_elems,

                              size_t size, wxSortCallback cmp,

                              const void* user_data);

#endif // WXWIN_COMPATIBILITY_3_2

#if wxUSE_GUI // GUI only things from now on

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

// Launch default browser

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

// flags for wxLaunchDefaultBrowser

enum

{

    wxBROWSER_NEW_WINDOW   = 0x01,

    wxBROWSER_NOBUSYCURSOR = 0x02

};

// Launch url in the user's default internet browser

WXDLLIMPEXP_CORE bool wxLaunchDefaultBrowser(const wxString& url, int flags = 0);

// Launch document in the user's default application

WXDLLIMPEXP_CORE bool wxLaunchDefaultApplication(const wxString& path, int flags = 0);

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

// Menu accelerators related things

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

// flags for wxStripMenuCodes

enum

{

    // strip '&' characters

    wxStrip_Mnemonics = 1,

    // strip everything after '\t'

    wxStrip_Accel = 2,

    // strip mnemonics of the form "(&X)" appended to the string (used in CJK

    // translations)

    wxStrip_CJKMnemonics = 4,

    // strip everything (this doesn't include wxStrip_CJKMnemonics for

    // compatibility)

    wxStrip_All = wxStrip_Mnemonics | wxStrip_Accel,

    // strip everything including CJK mnemonics, suitable for menu items labels

    // only (despite its name, wxStripMenuCodes() is currently used for control

    // labels too)

    wxStrip_Menu = wxStrip_All | wxStrip_CJKMnemonics

};

// strip mnemonics and/or accelerators from the label

WXDLLIMPEXP_CORE wxString

wxStripMenuCodes(const wxString& str, int flags = wxStrip_All);

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

// Window search

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

// Returns menu item id or wxNOT_FOUND if none.

WXDLLIMPEXP_CORE int wxFindMenuItemId(wxFrame *frame, const wxString& menuString, const wxString& itemString);

// Find the wxWindow at the given point. wxGenericFindWindowAtPoint

// is always present but may be less reliable than a native version.

WXDLLIMPEXP_CORE wxWindow* wxGenericFindWindowAtPoint(const wxPoint& pt);

WXDLLIMPEXP_CORE wxWindow* wxFindWindowAtPoint(const wxPoint& pt);

// NB: this function is obsolete, use wxWindow::FindWindowByLabel() instead

//

// Find the window/widget with the given title or label.

// Pass a parent to begin the search from, or nullptr to look through

// all windows.

WXDLLIMPEXP_CORE wxWindow* wxFindWindowByLabel(const wxString& title, wxWindow *parent = nullptr);

// NB: this function is obsolete, use wxWindow::FindWindowByName() instead

//

// Find window by name, and if that fails, by label.

WXDLLIMPEXP_CORE wxWindow* wxFindWindowByName(const wxString& name, wxWindow *parent = nullptr);

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

// Message/event queue helpers

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

// Yield to other apps/messages and disable user input

WXDLLIMPEXP_CORE bool wxSafeYield(wxWindow *win = nullptr, bool onlyIfNeeded = false);

// Enable or disable input to all top level windows

WXDLLIMPEXP_CORE void wxEnableTopLevelWindows(bool enable = true);

// Check whether this window wants to process messages, e.g. Stop button

// in long calculations.

WXDLLIMPEXP_CORE bool wxCheckForInterrupt(wxWindow *wnd);

// Consume all events until no more left

WXDLLIMPEXP_CORE void wxFlushEvents();

// a class which disables all windows (except, may be, the given one) in its

// ctor and enables them back in its dtor

class WXDLLIMPEXP_CORE wxWindowDisabler

{

public:

    // this ctor conditionally disables all windows: if the argument is false,

    // it doesn't do anything

    explicit wxWindowDisabler(bool disable = true);

    // ctor disables all windows except the given one(s)

    explicit wxWindowDisabler(wxWindow *winToSkip, wxWindow *winToSkip2 = nullptr);

    // dtor enables back all windows disabled by the ctor

    ~wxWindowDisabler();

private:

    // disable all windows not in m_windowsToSkip

    void DoDisable();

#if defined(__WXOSX__) && wxOSX_USE_COCOA

    void AfterDisable(wxWindow* winToSkip);

    void BeforeEnable();

    wxEventLoop* m_modalEventLoop = nullptr;

#endif

    wxVector<wxWindow*> m_windowsToSkip;

    bool m_disabled;

    wxDECLARE_NO_COPY_CLASS(wxWindowDisabler);

};

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

// Cursors

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

// Set the cursor to the busy cursor for all windows

WXDLLIMPEXP_CORE void wxBeginBusyCursor(const wxCursor *cursor = wxHOURGLASS_CURSOR);

// Restore cursor to normal

WXDLLIMPEXP_CORE void wxEndBusyCursor();

// true if we're between the above two calls

WXDLLIMPEXP_CORE bool wxIsBusy();

// Convenience class so we can just create a wxBusyCursor object on the stack

class WXDLLIMPEXP_CORE wxBusyCursor

{

public:

    wxBusyCursor(const wxCursor* cursor = wxHOURGLASS_CURSOR)

        { wxBeginBusyCursor(cursor); }

    ~wxBusyCursor()

        { wxEndBusyCursor(); }

    // FIXME: These two methods are currently only implemented (and needed?)

    //        in wxGTK.  BusyCursor handling should probably be moved to

    //        common code since the wxGTK and wxMSW implementations are very

    //        similar except for wxMSW using HCURSOR directly instead of

    //        wxCursor..  -- RL.

    static const wxCursor &GetStoredCursor();

    static const wxCursor GetBusyCursor();

};

void WXDLLIMPEXP_CORE wxGetMousePosition( int* x, int* y );

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

// X11 Display access

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

#if defined(__X__) || (defined(__WXGTK__) && defined(__UNIX__))

#ifdef __WXGTK__

    WXDLLIMPEXP_CORE void *wxGetDisplay();

    enum wxDisplayType

    {

        wxDisplayNone,

        wxDisplayX11,

        wxDisplayWayland

    };

    struct wxDisplayInfo

    {

        void* dpy;

        wxDisplayType type;

    };

    WXDLLIMPEXP_CORE wxDisplayInfo wxGetDisplayInfo();

    inline struct _XDisplay *wxGetX11Display()

    {

        const auto& info = wxGetDisplayInfo();

        return info.type == wxDisplayX11 ? (_XDisplay*)info.dpy : nullptr;

    }

#endif

#ifdef __X__

    WXDLLIMPEXP_CORE WXDisplay *wxGetDisplay();

    WXDLLIMPEXP_CORE bool wxSetDisplay(const wxString& display_name);

    WXDLLIMPEXP_CORE wxString wxGetDisplayName();

    inline struct _XDisplay *wxGetX11Display()

    {

        return (_XDisplay *)wxGetDisplay();

    }

#endif // X

#endif // X11 || wxGTK

#endif // wxUSE_GUI

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

// wxYield(): these functions are obsolete, please use wxApp methods instead!

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

// avoid redeclaring this function here if it had been already declared by

// wx/app.h, this results in warnings from g++ with -Wredundant-decls

#ifndef wx_YIELD_DECLARED

#define wx_YIELD_DECLARED

// Yield to other apps/messages

WXDLLIMPEXP_CORE bool wxYield();

#endif // wx_YIELD_DECLARED

// Like wxYield, but fails silently if the yield is recursive.

WXDLLIMPEXP_CORE bool wxYieldIfNeeded();

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

// Windows resources access

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

// Windows only: get user-defined resource from the .res file.

#ifdef __WINDOWS__

    // default resource type for wxLoadUserResource()

    extern WXDLLIMPEXP_DATA_BASE(const wxChar*) wxUserResourceStr;

    // Return the pointer to the resource data. This pointer is read-only, use

    // the overload below if you need to modify the data.

    //

    // Notice that the resource type can be either a real string or an integer

    // produced by MAKEINTRESOURCE(). In particular, any standard resource type,

    // i.e any RT_XXX constant, could be passed here.

    //

    // Returns true on success, false on failure. Doesn't log an error message

    // if the resource is not found (because this could be expected) but does

    // log one if any other error occurs.

    WXDLLIMPEXP_BASE bool

    wxLoadUserResource(const void **outData,

                       size_t *outLen,

                       const wxString& resourceName,

                       const wxChar* resourceType = wxUserResourceStr,

                       WXHINSTANCE module = nullptr);

    // This function allocates a new buffer and makes a copy of the resource

    // data, remember to delete[] the buffer. And avoid using it entirely if

    // the overload above can be used.

    //

    // Returns nullptr on failure.

    WXDLLIMPEXP_BASE char*

    wxLoadUserResource(const wxString& resourceName,

                       const wxChar* resourceType = wxUserResourceStr,

                       int* pLen = nullptr,

                       WXHINSTANCE module = nullptr);

#endif // __WINDOWS__

#endif

    // _WX_UTILSH__