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wxWidgets/include/wx/utils.h
Vadim Zeitlin d15bbcacd2 Merge branch 'rmv_symbols_3' of https://github.com/catalinr/wxWidgets 
Remove obsolete mentions of Windows 9x, Windows CE and OS/2.
2017-02-20 17:46:45 +01:00

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/////////////////////////////////////////////////////////////////////////////
// Name: wx/utils.h
// Purpose: Miscellaneous utilities
// Author: Julian Smart
// Modified by:
// 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/hashmap.h"
#include "wx/versioninfo.h"
#include "wx/meta/implicitconversion.h"
#if wxUSE_GUI
#include "wx/gdicmn.h"
#include "wx/mousestate.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"
#if defined(__X__)
#include <dirent.h>
#include <unistd.h>
#endif
#include <stdio.h>
// ----------------------------------------------------------------------------
// Forward declaration
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_FWD_BASE wxProcess;
class WXDLLIMPEXP_FWD_CORE wxFrame;
class WXDLLIMPEXP_FWD_CORE wxWindow;
class wxWindowList;
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;
}
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;
}
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
// ----------------------------------------------------------------------------
// String functions (deprecated, use wxString)
// ----------------------------------------------------------------------------
#if WXWIN_COMPATIBILITY_2_8
// A shorter way of using strcmp
wxDEPRECATED_INLINE(inline bool wxStringEq(const char *s1, const char *s2),
return wxCRT_StrcmpA(s1, s2) == 0; )
#if wxUSE_UNICODE
wxDEPRECATED_INLINE(inline bool wxStringEq(const wchar_t *s1, const wchar_t *s2),
return wxCRT_StrcmpW(s1, s2) == 0; )
#endif // wxUSE_UNICODE
#endif // WXWIN_COMPATIBILITY_2_8
// ----------------------------------------------------------------------------
// 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 = NULL,
int *verMin = NULL,
int *verMicro = NULL);
// 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
WXDLLIMPEXP_BASE bool wxIsPlatform64Bit();
#ifdef __LINUX__
// Get linux-distro informations
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 const wxChar *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 modifers
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(int id);
// Return the current ID
WXDLLIMPEXP_BASE int wxGetCurrentId();
// Generate a unique ID
WXDLLIMPEXP_BASE int 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
firstDigit = buf[0] - '0';
if (buf[1] >= 'A')
secondDigit = buf[1] - 'A' + 10;
else
secondDigit = buf[1] - '0';
return (firstDigit & 0xF) * 16 + (secondDigit & 0xF );
}
// Convert decimal integer to 2-character hex string
WXDLLIMPEXP_BASE void wxDecToHex(int dec, wxChar *buf);
WXDLLIMPEXP_BASE void wxDecToHex(int dec, char* ch1, char* ch2);
WXDLLIMPEXP_BASE wxString wxDecToHex(int dec);
// ----------------------------------------------------------------------------
// 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.
typedef wxStringToStringHashMap wxEnvVariableHashMap;
// 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 = NULL,
const wxExecuteEnv *env = NULL);
WXDLLIMPEXP_BASE long wxExecute(const char* const* argv,
int flags = wxEXEC_ASYNC,
wxProcess *process = NULL,
const wxExecuteEnv *env = NULL);
#if wxUSE_UNICODE
WXDLLIMPEXP_BASE long wxExecute(const wchar_t* const* argv,
int flags = wxEXEC_ASYNC,
wxProcess *process = NULL,
const wxExecuteEnv *env = NULL);
#endif // wxUSE_UNICODE
// 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 = NULL);
// also capture stderr (also synchronous)
WXDLLIMPEXP_BASE long wxExecute(const wxString& command,
wxArrayString& output,
wxArrayString& error,
int flags = 0,
const wxExecuteEnv *env = NULL);
#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 if not NULL
WXDLLIMPEXP_BASE int wxKill(long pid,
wxSignal sig = wxSIGTERM,
wxKillError *rc = NULL,
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);
#if WXWIN_COMPATIBILITY_2_8
// Sleep for a given amount of milliseconds (old, bad name), use wxMilliSleep
wxDEPRECATED( WXDLLIMPEXP_BASE void wxUsleep(unsigned long milliseconds) );
#endif
// 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);
#if WXWIN_COMPATIBILITY_2_8
inline bool wxSetEnv(const wxString& var, const char *value)
{ return wxSetEnv(var, wxString(value)); }
inline bool wxSetEnv(const wxString& var, const wchar_t *value)
{ return wxSetEnv(var, wxString(value)); }
template<typename T>
inline bool wxSetEnv(const wxString& var, const wxScopedCharTypeBuffer<T>& value)
{ return wxSetEnv(var, wxString(value)); }
inline bool wxSetEnv(const wxString& var, const wxCStrData& value)
{ return wxSetEnv(var, wxString(value)); }
// this one is for passing NULL directly - don't use it, use wxUnsetEnv instead
wxDEPRECATED( inline bool wxSetEnv(const wxString& var, int value) );
inline bool wxSetEnv(const wxString& var, int value)
{
wxASSERT_MSG( value == 0, "using non-NULL integer as string?" );
wxUnusedVar(value); // fix unused parameter warning in release build
return wxUnsetEnv(var);
}
#endif // WXWIN_COMPATIBILITY_2_8
// 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 = NULL,
wxDiskspaceSize_t *pFree = NULL);
typedef int (*wxSortCallback)(const void* pItem1,
const void* pItem2,
const void* user_data);
WXDLLIMPEXP_BASE void wxQsort(void* pbase, size_t total_elems,
size_t size, wxSortCallback cmp,
const void* user_data);
#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 everything (this is the default)
wxStrip_All = wxStrip_Mnemonics | wxStrip_Accel
};
// 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 NULL to look through
// all windows.
WXDLLIMPEXP_CORE wxWindow* wxFindWindowByLabel(const wxString& title, wxWindow *parent = NULL);
// 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 = NULL);
// ----------------------------------------------------------------------------
// Message/event queue helpers
// ----------------------------------------------------------------------------
// Yield to other apps/messages and disable user input
WXDLLIMPEXP_CORE bool wxSafeYield(wxWindow *win = NULL, 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
wxWindowDisabler(bool disable = true);
// ctor disables all windows except winToSkip
wxWindowDisabler(wxWindow *winToSkip);
// dtor enables back all windows disabled by the ctor
~wxWindowDisabler();
private:
// disable all windows except the given one (used by both ctors)
void DoDisable(wxWindow *winToSkip = NULL);
#if defined(__WXOSX__) && wxOSX_USE_COCOA
wxEventLoop* m_modalEventLoop;
#endif
wxWindowList *m_winDisabled;
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__)
#ifdef __WXGTK__
WXDLLIMPEXP_CORE void *wxGetDisplay();
#endif
#ifdef __X__
WXDLLIMPEXP_CORE WXDisplay *wxGetDisplay();
WXDLLIMPEXP_CORE bool wxSetDisplay(const wxString& display_name);
WXDLLIMPEXP_CORE wxString wxGetDisplayName();
#endif // X or GTK+
// use this function instead of the functions above in implementation code
inline struct _XDisplay *wxGetX11Display()
{
return (_XDisplay *)wxGetDisplay();
}
#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 declated 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 = 0);
// 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 NULL on failure.
WXDLLIMPEXP_BASE char*
wxLoadUserResource(const wxString& resourceName,
const wxChar* resourceType = wxUserResourceStr,
int* pLen = NULL,
WXHINSTANCE module = 0);
#endif // __WINDOWS__
#endif
// _WX_UTILSH__
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