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[wxWidgets.git] / include / wx / utils.h
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: wx/utils.h
3 // Purpose: Miscellaneous utilities
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 29/01/98
7 // RCS-ID: $Id$
8 // Copyright: (c) 1998 Julian Smart
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #ifndef _WX_UTILS_H_
13 #define _WX_UTILS_H_
14
15 // ----------------------------------------------------------------------------
16 // headers
17 // ----------------------------------------------------------------------------
18
19 #include "wx/object.h"
20 #include "wx/list.h"
21 #include "wx/filefn.h"
22
23 #if wxUSE_GUI
24 #include "wx/gdicmn.h"
25 #include "wx/mousestate.h"
26 #endif
27
28 class WXDLLIMPEXP_FWD_BASE wxArrayString;
29 class WXDLLIMPEXP_FWD_BASE wxArrayInt;
30
31 // need this for wxGetDiskSpace() as we can't, unfortunately, forward declare
32 // wxLongLong
33 #include "wx/longlong.h"
34
35 // needed for wxOperatingSystemId, wxLinuxDistributionInfo
36 #include "wx/platinfo.h"
37
38 #ifdef __WATCOMC__
39 #include <direct.h>
40 #elif defined(__X__)
41 #include <dirent.h>
42 #include <unistd.h>
43 #endif
44
45 #include <stdio.h>
46
47 // ----------------------------------------------------------------------------
48 // Forward declaration
49 // ----------------------------------------------------------------------------
50
51 class WXDLLIMPEXP_FWD_BASE wxProcess;
52 class WXDLLIMPEXP_FWD_CORE wxFrame;
53 class WXDLLIMPEXP_FWD_CORE wxWindow;
54 class WXDLLIMPEXP_FWD_CORE wxWindowList;
55
56 // ----------------------------------------------------------------------------
57 // Macros
58 // ----------------------------------------------------------------------------
59
60 #define wxMax(a,b) (((a) > (b)) ? (a) : (b))
61 #define wxMin(a,b) (((a) < (b)) ? (a) : (b))
62 #define wxClip(a,b,c) (((a) < (b)) ? (b) : (((a) > (c)) ? (c) : (a)))
63
64 // wxGetFreeMemory can return huge amount of memory on 32-bit platforms as well
65 // so to always use long long for its result type on all platforms which
66 // support it
67 #if wxUSE_LONGLONG
68 typedef wxLongLong wxMemorySize;
69 #else
70 typedef long wxMemorySize;
71 #endif
72
73 // ----------------------------------------------------------------------------
74 // String functions (deprecated, use wxString)
75 // ----------------------------------------------------------------------------
76
77 #ifdef WXWIN_COMPATIBILITY_2_8
78 // A shorter way of using strcmp
79 wxDEPRECATED_INLINE(inline bool wxStringEq(const char *s1, const char *s2),
80 return wxCRT_StrcmpA(s1, s2) == 0; )
81
82 #if wxUSE_UNICODE
83 wxDEPRECATED_INLINE(inline bool wxStringEq(const wchar_t *s1, const wchar_t *s2),
84 return wxCRT_StrcmpW(s1, s2) == 0; )
85 #endif // wxUSE_UNICODE
86
87 #endif // WXWIN_COMPATIBILITY_2_8
88
89 // ----------------------------------------------------------------------------
90 // Miscellaneous functions
91 // ----------------------------------------------------------------------------
92
93 // Sound the bell
94 #if !defined __EMX__ && \
95 (defined __WXMOTIF__ || defined __WXGTK__ || defined __WXX11__)
96 WXDLLIMPEXP_CORE void wxBell();
97 #else
98 WXDLLIMPEXP_BASE void wxBell();
99 #endif
100
101 #if wxUSE_MSGDLG
102 // Show wxWidgets information
103 WXDLLIMPEXP_CORE void wxInfoMessageBox(wxWindow* parent);
104 #endif // wxUSE_MSGDLG
105
106 // Get OS description as a user-readable string
107 WXDLLIMPEXP_BASE wxString wxGetOsDescription();
108
109 // Get OS version
110 WXDLLIMPEXP_BASE wxOperatingSystemId wxGetOsVersion(int *majorVsn = NULL,
111 int *minorVsn = NULL);
112
113 // Get platform endianness
114 WXDLLIMPEXP_BASE bool wxIsPlatformLittleEndian();
115
116 // Get platform architecture
117 WXDLLIMPEXP_BASE bool wxIsPlatform64Bit();
118
119 #ifdef __LINUX__
120 // Get linux-distro informations
121 WXDLLIMPEXP_BASE wxLinuxDistributionInfo wxGetLinuxDistributionInfo();
122 #endif
123
124 // Return a string with the current date/time
125 WXDLLIMPEXP_BASE wxString wxNow();
126
127 // Return path where wxWidgets is installed (mostly useful in Unices)
128 WXDLLIMPEXP_BASE const wxChar *wxGetInstallPrefix();
129 // Return path to wxWin data (/usr/share/wx/%{version}) (Unices)
130 WXDLLIMPEXP_BASE wxString wxGetDataDir();
131
132 #if wxUSE_GUI
133
134 // Get the state of a key (true if pressed, false if not)
135 // This is generally most useful getting the state of
136 // the modifier or toggle keys.
137 WXDLLIMPEXP_CORE bool wxGetKeyState(wxKeyCode key);
138
139 // Don't synthesize KeyUp events holding down a key and producing
140 // KeyDown events with autorepeat. On by default and always on
141 // in wxMSW.
142 WXDLLIMPEXP_CORE bool wxSetDetectableAutoRepeat( bool flag );
143
144 // Returns the current state of the mouse position, buttons and modifers
145 WXDLLIMPEXP_CORE wxMouseState wxGetMouseState();
146
147 #endif // wxUSE_GUI
148
149 // ----------------------------------------------------------------------------
150 // wxPlatform
151 // ----------------------------------------------------------------------------
152
153 /*
154 * Class to make it easier to specify platform-dependent values
155 *
156 * Examples:
157 * long val = wxPlatform::If(wxMac, 1).ElseIf(wxGTK, 2).ElseIf(stPDA, 5).Else(3);
158 * wxString strVal = wxPlatform::If(wxMac, wxT("Mac")).ElseIf(wxMSW, wxT("MSW")).Else(wxT("Other"));
159 *
160 * A custom platform symbol:
161 *
162 * #define stPDA 100
163 * #ifdef __WXWINCE__
164 * wxPlatform::AddPlatform(stPDA);
165 * #endif
166 *
167 * long windowStyle = wxCAPTION | (long) wxPlatform::IfNot(stPDA, wxRESIZE_BORDER);
168 *
169 */
170
171 class WXDLLIMPEXP_BASE wxPlatform
172 {
173 public:
174 wxPlatform() { Init(); }
175 wxPlatform(const wxPlatform& platform) { Copy(platform); }
176 void operator = (const wxPlatform& platform) { if (&platform != this) Copy(platform); }
177 void Copy(const wxPlatform& platform);
178
179 // Specify an optional default value
180 wxPlatform(int defValue) { Init(); m_longValue = (long)defValue; }
181 wxPlatform(long defValue) { Init(); m_longValue = defValue; }
182 wxPlatform(const wxString& defValue) { Init(); m_stringValue = defValue; }
183 wxPlatform(double defValue) { Init(); m_doubleValue = defValue; }
184
185 static wxPlatform If(int platform, long value);
186 static wxPlatform IfNot(int platform, long value);
187 wxPlatform& ElseIf(int platform, long value);
188 wxPlatform& ElseIfNot(int platform, long value);
189 wxPlatform& Else(long value);
190
191 static wxPlatform If(int platform, int value) { return If(platform, (long)value); }
192 static wxPlatform IfNot(int platform, int value) { return IfNot(platform, (long)value); }
193 wxPlatform& ElseIf(int platform, int value) { return ElseIf(platform, (long) value); }
194 wxPlatform& ElseIfNot(int platform, int value) { return ElseIfNot(platform, (long) value); }
195 wxPlatform& Else(int value) { return Else((long) value); }
196
197 static wxPlatform If(int platform, double value);
198 static wxPlatform IfNot(int platform, double value);
199 wxPlatform& ElseIf(int platform, double value);
200 wxPlatform& ElseIfNot(int platform, double value);
201 wxPlatform& Else(double value);
202
203 static wxPlatform If(int platform, const wxString& value);
204 static wxPlatform IfNot(int platform, const wxString& value);
205 wxPlatform& ElseIf(int platform, const wxString& value);
206 wxPlatform& ElseIfNot(int platform, const wxString& value);
207 wxPlatform& Else(const wxString& value);
208
209 long GetInteger() const { return m_longValue; }
210 const wxString& GetString() const { return m_stringValue; }
211 double GetDouble() const { return m_doubleValue; }
212
213 operator int() const { return (int) GetInteger(); }
214 operator long() const { return GetInteger(); }
215 operator double() const { return GetDouble(); }
216 operator const wxString&() const { return GetString(); }
217
218 static void AddPlatform(int platform);
219 static bool Is(int platform);
220 static void ClearPlatforms();
221
222 private:
223
224 void Init() { m_longValue = 0; m_doubleValue = 0.0; }
225
226 long m_longValue;
227 double m_doubleValue;
228 wxString m_stringValue;
229 static wxArrayInt* sm_customPlatforms;
230 };
231
232 /// Function for testing current platform
233 inline bool wxPlatformIs(int platform) { return wxPlatform::Is(platform); }
234
235 // ----------------------------------------------------------------------------
236 // Window ID management
237 // ----------------------------------------------------------------------------
238
239 // Ensure subsequent IDs don't clash with this one
240 WXDLLIMPEXP_BASE void wxRegisterId(long id);
241
242 // Return the current ID
243 WXDLLIMPEXP_BASE long wxGetCurrentId();
244
245 // Generate a unique ID
246 WXDLLIMPEXP_BASE long wxNewId();
247
248 // ----------------------------------------------------------------------------
249 // Various conversions
250 // ----------------------------------------------------------------------------
251
252 // Convert 2-digit hex number to decimal
253 WXDLLIMPEXP_BASE int wxHexToDec(const wxString& buf);
254
255 // Convert decimal integer to 2-character hex string
256 WXDLLIMPEXP_BASE void wxDecToHex(int dec, wxChar *buf);
257 WXDLLIMPEXP_BASE void wxDecToHex(int dec, char* ch1, char* ch2);
258 WXDLLIMPEXP_BASE wxString wxDecToHex(int dec);
259
260 // ----------------------------------------------------------------------------
261 // Process management
262 // ----------------------------------------------------------------------------
263
264 // NB: for backwards compatibility reasons the values of wxEXEC_[A]SYNC *must*
265 // be 0 and 1, don't change!
266
267 enum
268 {
269 // execute the process asynchronously
270 wxEXEC_ASYNC = 0,
271
272 // execute it synchronously, i.e. wait until it finishes
273 wxEXEC_SYNC = 1,
274
275 // under Windows, don't hide the child even if it's IO is redirected (this
276 // is done by default)
277 wxEXEC_NOHIDE = 2,
278
279 // under Unix, if the process is the group leader then passing wxKILL_CHILDREN to wxKill
280 // kills all children as well as pid
281 wxEXEC_MAKE_GROUP_LEADER = 4,
282
283 // by default synchronous execution disables all program windows to avoid
284 // that the user interacts with the program while the child process is
285 // running, you can use this flag to prevent this from happening
286 wxEXEC_NODISABLE = 8,
287
288 // by default, the event loop is run while waiting for synchronous execution
289 // to complete and this flag can be used to simply block the main process
290 // until the child process finishes
291 wxEXEC_NOEVENTS = 16,
292
293 // convenient synonym for flags given system()-like behaviour
294 wxEXEC_BLOCK = wxEXEC_SYNC | wxEXEC_NOEVENTS
295 };
296
297 // Execute another program.
298 //
299 // If flags contain wxEXEC_SYNC, return -1 on failure and the exit code of the
300 // process if everything was ok. Otherwise (i.e. if wxEXEC_ASYNC), return 0 on
301 // failure and the PID of the launched process if ok.
302 WXDLLIMPEXP_BASE long wxExecute(const wxString& command,
303 int flags = wxEXEC_ASYNC,
304 wxProcess *process = NULL);
305 WXDLLIMPEXP_BASE long wxExecute(char **argv,
306 int flags = wxEXEC_ASYNC,
307 wxProcess *process = NULL);
308 #if wxUSE_UNICODE
309 WXDLLIMPEXP_BASE long wxExecute(wchar_t **argv,
310 int flags = wxEXEC_ASYNC,
311 wxProcess *process = NULL);
312 #endif // wxUSE_UNICODE
313
314 // execute the command capturing its output into an array line by line, this is
315 // always synchronous
316 WXDLLIMPEXP_BASE long wxExecute(const wxString& command,
317 wxArrayString& output,
318 int flags = 0);
319
320 // also capture stderr (also synchronous)
321 WXDLLIMPEXP_BASE long wxExecute(const wxString& command,
322 wxArrayString& output,
323 wxArrayString& error,
324 int flags = 0);
325
326 #if defined(__WXMSW__) && wxUSE_IPC
327 // ask a DDE server to execute the DDE request with given parameters
328 WXDLLIMPEXP_BASE bool wxExecuteDDE(const wxString& ddeServer,
329 const wxString& ddeTopic,
330 const wxString& ddeCommand);
331 #endif // __WXMSW__ && wxUSE_IPC
332
333 enum wxSignal
334 {
335 wxSIGNONE = 0, // verify if the process exists under Unix
336 wxSIGHUP,
337 wxSIGINT,
338 wxSIGQUIT,
339 wxSIGILL,
340 wxSIGTRAP,
341 wxSIGABRT,
342 wxSIGIOT = wxSIGABRT, // another name
343 wxSIGEMT,
344 wxSIGFPE,
345 wxSIGKILL,
346 wxSIGBUS,
347 wxSIGSEGV,
348 wxSIGSYS,
349 wxSIGPIPE,
350 wxSIGALRM,
351 wxSIGTERM
352
353 // further signals are different in meaning between different Unix systems
354 };
355
356 enum wxKillError
357 {
358 wxKILL_OK, // no error
359 wxKILL_BAD_SIGNAL, // no such signal
360 wxKILL_ACCESS_DENIED, // permission denied
361 wxKILL_NO_PROCESS, // no such process
362 wxKILL_ERROR // another, unspecified error
363 };
364
365 enum wxKillFlags
366 {
367 wxKILL_NOCHILDREN = 0, // don't kill children
368 wxKILL_CHILDREN = 1 // kill children
369 };
370
371 enum wxShutdownFlags
372 {
373 wxSHUTDOWN_FORCE = 1,// can be combined with other flags (MSW-only)
374 wxSHUTDOWN_POWEROFF = 2,// power off the computer
375 wxSHUTDOWN_REBOOT = 4,// shutdown and reboot
376 wxSHUTDOWN_LOGOFF = 8 // close session (currently MSW-only)
377 };
378
379 // Shutdown or reboot the PC
380 WXDLLIMPEXP_BASE bool wxShutdown(int flags = wxSHUTDOWN_POWEROFF);
381
382 // send the given signal to the process (only NONE and KILL are supported under
383 // Windows, all others mean TERM), return 0 if ok and -1 on error
384 //
385 // return detailed error in rc if not NULL
386 WXDLLIMPEXP_BASE int wxKill(long pid,
387 wxSignal sig = wxSIGTERM,
388 wxKillError *rc = NULL,
389 int flags = wxKILL_NOCHILDREN);
390
391 // Execute a command in an interactive shell window (always synchronously)
392 // If no command then just the shell
393 WXDLLIMPEXP_BASE bool wxShell(const wxString& command = wxEmptyString);
394
395 // As wxShell(), but must give a (non interactive) command and its output will
396 // be returned in output array
397 WXDLLIMPEXP_BASE bool wxShell(const wxString& command, wxArrayString& output);
398
399 // Sleep for nSecs seconds
400 WXDLLIMPEXP_BASE void wxSleep(int nSecs);
401
402 // Sleep for a given amount of milliseconds
403 WXDLLIMPEXP_BASE void wxMilliSleep(unsigned long milliseconds);
404
405 // Sleep for a given amount of microseconds
406 WXDLLIMPEXP_BASE void wxMicroSleep(unsigned long microseconds);
407
408 #if WXWIN_COMPATIBILITY_2_8
409 // Sleep for a given amount of milliseconds (old, bad name), use wxMilliSleep
410 wxDEPRECATED( WXDLLIMPEXP_BASE void wxUsleep(unsigned long milliseconds) );
411 #endif
412
413 // Get the process id of the current process
414 WXDLLIMPEXP_BASE unsigned long wxGetProcessId();
415
416 // Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
417 WXDLLIMPEXP_BASE wxMemorySize wxGetFreeMemory();
418
419 #if wxUSE_ON_FATAL_EXCEPTION
420
421 // should wxApp::OnFatalException() be called?
422 WXDLLIMPEXP_BASE bool wxHandleFatalExceptions(bool doit = true);
423
424 #endif // wxUSE_ON_FATAL_EXCEPTION
425
426 // ----------------------------------------------------------------------------
427 // Environment variables
428 // ----------------------------------------------------------------------------
429
430 // returns true if variable exists (value may be NULL if you just want to check
431 // for this)
432 WXDLLIMPEXP_BASE bool wxGetEnv(const wxString& var, wxString *value);
433
434 // set the env var name to the given value, return true on success
435 WXDLLIMPEXP_BASE bool wxSetEnv(const wxString& var, const wxString& value);
436
437 // remove the env var from environment
438 WXDLLIMPEXP_BASE bool wxUnsetEnv(const wxString& var);
439
440 #if WXWIN_COMPATIBILITY_2_8
441 inline bool wxSetEnv(const wxString& var, const char *value)
442 { return wxSetEnv(var, wxString(value)); }
443 inline bool wxSetEnv(const wxString& var, const wchar_t *value)
444 { return wxSetEnv(var, wxString(value)); }
445 template<typename T>
446 inline bool wxSetEnv(const wxString& var, const wxScopedCharTypeBuffer<T>& value)
447 { return wxSetEnv(var, wxString(value)); }
448 inline bool wxSetEnv(const wxString& var, const wxCStrData& value)
449 { return wxSetEnv(var, wxString(value)); }
450
451 // this one is for passing NULL directly - don't use it, use wxUnsetEnv instead
452 wxDEPRECATED( inline bool wxSetEnv(const wxString& var, int value) );
453 inline bool wxSetEnv(const wxString& var, int value)
454 {
455 wxASSERT_MSG( value == 0, "using non-NULL integer as string?" );
456
457 wxUnusedVar(value); // fix unused parameter warning in release build
458
459 return wxUnsetEnv(var);
460 }
461 #endif // WXWIN_COMPATIBILITY_2_8
462
463 // ----------------------------------------------------------------------------
464 // Network and username functions.
465 // ----------------------------------------------------------------------------
466
467 // NB: "char *" functions are deprecated, use wxString ones!
468
469 // Get eMail address
470 WXDLLIMPEXP_BASE bool wxGetEmailAddress(wxChar *buf, int maxSize);
471 WXDLLIMPEXP_BASE wxString wxGetEmailAddress();
472
473 // Get hostname.
474 WXDLLIMPEXP_BASE bool wxGetHostName(wxChar *buf, int maxSize);
475 WXDLLIMPEXP_BASE wxString wxGetHostName();
476
477 // Get FQDN
478 WXDLLIMPEXP_BASE wxString wxGetFullHostName();
479 WXDLLIMPEXP_BASE bool wxGetFullHostName(wxChar *buf, int maxSize);
480
481 // Get user ID e.g. jacs (this is known as login name under Unix)
482 WXDLLIMPEXP_BASE bool wxGetUserId(wxChar *buf, int maxSize);
483 WXDLLIMPEXP_BASE wxString wxGetUserId();
484
485 // Get user name e.g. Julian Smart
486 WXDLLIMPEXP_BASE bool wxGetUserName(wxChar *buf, int maxSize);
487 WXDLLIMPEXP_BASE wxString wxGetUserName();
488
489 // Get current Home dir and copy to dest (returns pstr->c_str())
490 WXDLLIMPEXP_BASE wxString wxGetHomeDir();
491 WXDLLIMPEXP_BASE const wxChar* wxGetHomeDir(wxString *pstr);
492
493 // Get the user's (by default use the current user name) home dir,
494 // return empty string on error
495 WXDLLIMPEXP_BASE wxString wxGetUserHome(const wxString& user = wxEmptyString);
496
497
498 #if wxUSE_LONGLONG
499 typedef wxLongLong wxDiskspaceSize_t;
500 #else
501 typedef long wxDiskspaceSize_t;
502 #endif
503
504 // get number of total/free bytes on the disk where path belongs
505 WXDLLIMPEXP_BASE bool wxGetDiskSpace(const wxString& path,
506 wxDiskspaceSize_t *pTotal = NULL,
507 wxDiskspaceSize_t *pFree = NULL);
508
509
510
511 extern "C"
512 {
513 typedef int (wxCMPFUNC_CONV *CMPFUNCDATA)(const void* pItem1, const void* pItem2, const void* user_data);
514 }
515
516
517 WXDLLIMPEXP_BASE void wxQsort(void *const pbase, size_t total_elems,
518 size_t size, CMPFUNCDATA cmp, const void* user_data);
519
520
521 #if wxUSE_GUI // GUI only things from now on
522
523 // ----------------------------------------------------------------------------
524 // Launch default browser
525 // ----------------------------------------------------------------------------
526
527 // flags for wxLaunchDefaultBrowser
528 enum
529 {
530 wxBROWSER_NEW_WINDOW = 0x01,
531 wxBROWSER_NOBUSYCURSOR = 0x02
532 };
533
534 // Launch url in the user's default internet browser
535 WXDLLIMPEXP_CORE bool wxLaunchDefaultBrowser(const wxString& url, int flags = 0);
536
537 // Launch document in the user's default application
538 WXDLLIMPEXP_CORE bool wxLaunchDefaultApplication(const wxString& path, int flags = 0);
539
540 // ----------------------------------------------------------------------------
541 // Menu accelerators related things
542 // ----------------------------------------------------------------------------
543
544 // flags for wxStripMenuCodes
545 enum
546 {
547 // strip '&' characters
548 wxStrip_Mnemonics = 1,
549
550 // strip everything after '\t'
551 wxStrip_Accel = 2,
552
553 // strip everything (this is the default)
554 wxStrip_All = wxStrip_Mnemonics | wxStrip_Accel
555 };
556
557 // strip mnemonics and/or accelerators from the label
558 WXDLLIMPEXP_CORE wxString
559 wxStripMenuCodes(const wxString& str, int flags = wxStrip_All);
560
561 #if WXWIN_COMPATIBILITY_2_6
562 // obsolete and deprecated version, do not use, use the above overload instead
563 wxDEPRECATED(
564 WXDLLIMPEXP_CORE wxChar* wxStripMenuCodes(const wxChar *in, wxChar *out = NULL)
565 );
566
567 #if wxUSE_ACCEL
568 class WXDLLIMPEXP_FWD_CORE wxAcceleratorEntry;
569
570 // use wxAcceleratorEntry::Create() or FromString() methods instead
571 wxDEPRECATED(
572 WXDLLIMPEXP_CORE wxAcceleratorEntry *wxGetAccelFromString(const wxString& label)
573 );
574 #endif // wxUSE_ACCEL
575
576 #endif // WXWIN_COMPATIBILITY_2_6
577
578 // ----------------------------------------------------------------------------
579 // Window search
580 // ----------------------------------------------------------------------------
581
582 // Returns menu item id or wxNOT_FOUND if none.
583 WXDLLIMPEXP_CORE int wxFindMenuItemId(wxFrame *frame, const wxString& menuString, const wxString& itemString);
584
585 // Find the wxWindow at the given point. wxGenericFindWindowAtPoint
586 // is always present but may be less reliable than a native version.
587 WXDLLIMPEXP_CORE wxWindow* wxGenericFindWindowAtPoint(const wxPoint& pt);
588 WXDLLIMPEXP_CORE wxWindow* wxFindWindowAtPoint(const wxPoint& pt);
589
590 // NB: this function is obsolete, use wxWindow::FindWindowByLabel() instead
591 //
592 // Find the window/widget with the given title or label.
593 // Pass a parent to begin the search from, or NULL to look through
594 // all windows.
595 WXDLLIMPEXP_CORE wxWindow* wxFindWindowByLabel(const wxString& title, wxWindow *parent = NULL);
596
597 // NB: this function is obsolete, use wxWindow::FindWindowByName() instead
598 //
599 // Find window by name, and if that fails, by label.
600 WXDLLIMPEXP_CORE wxWindow* wxFindWindowByName(const wxString& name, wxWindow *parent = NULL);
601
602 // ----------------------------------------------------------------------------
603 // Message/event queue helpers
604 // ----------------------------------------------------------------------------
605
606 // Yield to other apps/messages and disable user input
607 WXDLLIMPEXP_CORE bool wxSafeYield(wxWindow *win = NULL, bool onlyIfNeeded = false);
608
609 // Enable or disable input to all top level windows
610 WXDLLIMPEXP_CORE void wxEnableTopLevelWindows(bool enable = true);
611
612 // Check whether this window wants to process messages, e.g. Stop button
613 // in long calculations.
614 WXDLLIMPEXP_CORE bool wxCheckForInterrupt(wxWindow *wnd);
615
616 // Consume all events until no more left
617 WXDLLIMPEXP_CORE void wxFlushEvents();
618
619 // a class which disables all windows (except, may be, the given one) in its
620 // ctor and enables them back in its dtor
621 class WXDLLIMPEXP_CORE wxWindowDisabler
622 {
623 public:
624 // this ctor conditionally disables all windows: if the argument is false,
625 // it doesn't do anything
626 wxWindowDisabler(bool disable = true);
627
628 // ctor disables all windows except winToSkip
629 wxWindowDisabler(wxWindow *winToSkip);
630
631 // dtor enables back all windows disabled by the ctor
632 ~wxWindowDisabler();
633
634 private:
635 // disable all windows except the given one (used by both ctors)
636 void DoDisable(wxWindow *winToSkip = NULL);
637
638
639 wxWindowList *m_winDisabled;
640 bool m_disabled;
641
642 wxDECLARE_NO_COPY_CLASS(wxWindowDisabler);
643 };
644
645 // ----------------------------------------------------------------------------
646 // Cursors
647 // ----------------------------------------------------------------------------
648
649 // Set the cursor to the busy cursor for all windows
650 WXDLLIMPEXP_CORE void wxBeginBusyCursor(const wxCursor *cursor = wxHOURGLASS_CURSOR);
651
652 // Restore cursor to normal
653 WXDLLIMPEXP_CORE void wxEndBusyCursor();
654
655 // true if we're between the above two calls
656 WXDLLIMPEXP_CORE bool wxIsBusy();
657
658 // Convenience class so we can just create a wxBusyCursor object on the stack
659 class WXDLLIMPEXP_CORE wxBusyCursor
660 {
661 public:
662 wxBusyCursor(const wxCursor* cursor = wxHOURGLASS_CURSOR)
663 { wxBeginBusyCursor(cursor); }
664 ~wxBusyCursor()
665 { wxEndBusyCursor(); }
666
667 // FIXME: These two methods are currently only implemented (and needed?)
668 // in wxGTK. BusyCursor handling should probably be moved to
669 // common code since the wxGTK and wxMSW implementations are very
670 // similar except for wxMSW using HCURSOR directly instead of
671 // wxCursor.. -- RL.
672 static const wxCursor &GetStoredCursor();
673 static const wxCursor GetBusyCursor();
674 };
675
676 void WXDLLIMPEXP_CORE wxGetMousePosition( int* x, int* y );
677
678 // MSW only: get user-defined resource from the .res file.
679 // Returns NULL or newly-allocated memory, so use delete[] to clean up.
680 #ifdef __WXMSW__
681 extern WXDLLIMPEXP_CORE const wxChar* wxUserResourceStr;
682 WXDLLIMPEXP_CORE char* wxLoadUserResource(const wxString& resourceName, const wxString& resourceType = wxUserResourceStr, int* pLen = NULL);
683 #endif // MSW
684
685 // ----------------------------------------------------------------------------
686 // X11 Display access
687 // ----------------------------------------------------------------------------
688
689 #if defined(__X__) || defined(__WXGTK__)
690
691 #ifdef __WXGTK__
692 WXDLLIMPEXP_CORE void *wxGetDisplay();
693 #endif
694
695 #ifdef __X__
696 WXDLLIMPEXP_CORE WXDisplay *wxGetDisplay();
697 WXDLLIMPEXP_CORE bool wxSetDisplay(const wxString& display_name);
698 WXDLLIMPEXP_CORE wxString wxGetDisplayName();
699 #endif // X or GTK+
700
701 // use this function instead of the functions above in implementation code
702 inline struct _XDisplay *wxGetX11Display()
703 {
704 return (_XDisplay *)wxGetDisplay();
705 }
706
707 #endif // X11 || wxGTK
708
709 #endif // wxUSE_GUI
710
711 // ----------------------------------------------------------------------------
712 // wxYield(): these functions are obsolete, please use wxApp methods instead!
713 // ----------------------------------------------------------------------------
714
715 // avoid redeclaring this function here if it had been already declated by
716 // wx/app.h, this results in warnings from g++ with -Wredundant-decls
717 #ifndef wx_YIELD_DECLARED
718 #define wx_YIELD_DECLARED
719
720 // Yield to other apps/messages
721 WXDLLIMPEXP_CORE bool wxYield();
722
723 #endif // wx_YIELD_DECLARED
724
725 // Like wxYield, but fails silently if the yield is recursive.
726 WXDLLIMPEXP_CORE bool wxYieldIfNeeded();
727
728 #endif
729 // _WX_UTILSH__