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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_UTILSH__
13 #define _WX_UTILSH__
14
15 // ----------------------------------------------------------------------------
16 // headers
17 // ----------------------------------------------------------------------------
18
19 #include "wx/object.h"
20 #include "wx/list.h"
21 #include "wx/filefn.h"
22 #if wxUSE_GUI
23 #include "wx/gdicmn.h"
24 #endif
25
26 class WXDLLIMPEXP_BASE wxArrayString;
27 class WXDLLIMPEXP_BASE wxArrayInt;
28
29 // need this for wxGetDiskSpace() as we can't, unfortunately, forward declare
30 // wxLongLong
31 #include "wx/longlong.h"
32
33 // need for wxOperatingSystemId
34 #include "wx/platinfo.h"
35
36 #ifdef __WATCOMC__
37 #include <direct.h>
38 #elif defined(__X__)
39 #include <dirent.h>
40 #include <unistd.h>
41 #endif
42
43 #include <stdio.h>
44
45 // ----------------------------------------------------------------------------
46 // Forward declaration
47 // ----------------------------------------------------------------------------
48
49 class WXDLLIMPEXP_CORE wxProcess;
50 class WXDLLIMPEXP_CORE wxFrame;
51 class WXDLLIMPEXP_CORE wxWindow;
52 class WXDLLIMPEXP_CORE wxWindowList;
53
54 // ----------------------------------------------------------------------------
55 // Macros
56 // ----------------------------------------------------------------------------
57
58 #define wxMax(a,b) (((a) > (b)) ? (a) : (b))
59 #define wxMin(a,b) (((a) < (b)) ? (a) : (b))
60 #define wxClip(a,b,c) (((a) < (b)) ? (b) : (((a) > (c)) ? (c) : (a)))
61
62 // wxGetFreeMemory can return huge amount of memory on 32-bit platforms as well
63 // so to always use long long for its result type on all platforms which
64 // support it
65 #if wxUSE_LONGLONG
66 typedef wxLongLong wxMemorySize;
67 #else
68 typedef long wxMemorySize;
69 #endif
70
71 // ----------------------------------------------------------------------------
72 // String functions (deprecated, use wxString)
73 // ----------------------------------------------------------------------------
74
75 // A shorter way of using strcmp
76 #define wxStringEq(s1, s2) (s1 && s2 && (wxStrcmp(s1, s2) == 0))
77
78 // ----------------------------------------------------------------------------
79 // Miscellaneous functions
80 // ----------------------------------------------------------------------------
81
82 // Sound the bell
83 #if !defined __EMX__ && \
84 (defined __WXMOTIF__ || defined __WXGTK__ || defined __WXX11__)
85 WXDLLIMPEXP_CORE void wxBell();
86 #else
87 WXDLLIMPEXP_BASE void wxBell();
88 #endif
89
90 // Get OS description as a user-readable string
91 WXDLLIMPEXP_BASE wxString wxGetOsDescription();
92
93 // Get OS version
94 WXDLLIMPEXP_BASE wxOperatingSystemId wxGetOsVersion(int *majorVsn = (int *) NULL,
95 int *minorVsn = (int *) NULL);
96
97 // Get platform endianness
98 WXDLLIMPEXP_BASE bool wxIsPlatformLittleEndian();
99
100 // Get platform architecture
101 WXDLLIMPEXP_BASE bool wxIsPlatform64Bit();
102
103 // Return a string with the current date/time
104 WXDLLIMPEXP_BASE wxString wxNow();
105
106 // Return path where wxWidgets is installed (mostly useful in Unices)
107 WXDLLIMPEXP_BASE const wxChar *wxGetInstallPrefix();
108 // Return path to wxWin data (/usr/share/wx/%{version}) (Unices)
109 WXDLLIMPEXP_BASE wxString wxGetDataDir();
110
111 /*
112 * Class to make it easier to specify platform-dependent values
113 *
114 * Examples:
115 * long val = wxPlatform::If(wxMac, 1).ElseIf(wxGTK, 2).ElseIf(stPDA, 5).Else(3);
116 * wxString strVal = wxPlatform::If(wxMac, wxT("Mac")).ElseIf(wxMSW, wxT("MSW")).Else(wxT("Other"));
117 *
118 * A custom platform symbol:
119 *
120 * #define stPDA 100
121 * #ifdef __WXWINCE__
122 * wxPlatform::AddPlatform(stPDA);
123 * #endif
124 *
125 * long windowStyle = wxCAPTION | (long) wxPlatform::IfNot(stPDA, wxRESIZE_BORDER);
126 *
127 */
128
129 class WXDLLIMPEXP_BASE wxPlatform
130 {
131 public:
132 wxPlatform() { Init(); }
133 wxPlatform(const wxPlatform& platform) { Copy(platform); }
134 void operator = (const wxPlatform& platform) { Copy(platform); }
135 void Copy(const wxPlatform& platform);
136
137 // Specify an optional default value
138 wxPlatform(int defValue) { Init(); m_longValue = (long)defValue; }
139 wxPlatform(long defValue) { Init(); m_longValue = defValue; }
140 wxPlatform(const wxString& defValue) { Init(); m_stringValue = defValue; }
141 wxPlatform(double defValue) { Init(); m_doubleValue = defValue; }
142
143 static wxPlatform If(int platform, long value);
144 static wxPlatform IfNot(int platform, long value);
145 wxPlatform& ElseIf(int platform, long value);
146 wxPlatform& ElseIfNot(int platform, long value);
147 wxPlatform& Else(long value);
148
149 static wxPlatform If(int platform, int value) { return If(platform, (long)value); }
150 static wxPlatform IfNot(int platform, int value) { return IfNot(platform, (long)value); }
151 wxPlatform& ElseIf(int platform, int value) { return ElseIf(platform, (long) value); }
152 wxPlatform& ElseIfNot(int platform, int value) { return ElseIfNot(platform, (long) value); }
153 wxPlatform& Else(int value) { return Else((long) value); }
154
155 static wxPlatform If(int platform, double value);
156 static wxPlatform IfNot(int platform, double value);
157 wxPlatform& ElseIf(int platform, double value);
158 wxPlatform& ElseIfNot(int platform, double value);
159 wxPlatform& Else(double value);
160
161 static wxPlatform If(int platform, const wxString& value);
162 static wxPlatform IfNot(int platform, const wxString& value);
163 wxPlatform& ElseIf(int platform, const wxString& value);
164 wxPlatform& ElseIfNot(int platform, const wxString& value);
165 wxPlatform& Else(const wxString& value);
166
167 long GetInteger() const { return m_longValue; }
168 const wxString& GetString() const { return m_stringValue; }
169 double GetDouble() const { return m_doubleValue; }
170
171 operator int() const { return (int) GetInteger(); }
172 operator long() const { return GetInteger(); }
173 operator double() const { return GetDouble(); }
174 operator const wxString&() const { return GetString(); }
175
176 static void AddPlatform(int platform);
177 static bool Is(int platform);
178 static void ClearPlatforms();
179
180 private:
181
182 void Init() { m_longValue = 0; m_doubleValue = 0.0; }
183
184 long m_longValue;
185 double m_doubleValue;
186 wxString m_stringValue;
187 static wxArrayInt* sm_customPlatforms;
188 };
189
190 /// Function for testing current platform
191 inline bool wxPlatformIs(int platform) { return wxPlatform::Is(platform); }
192
193 #if wxUSE_GUI
194
195 // Get the state of a key (true if pressed, false if not)
196 // This is generally most useful getting the state of
197 // the modifier or toggle keys.
198 WXDLLEXPORT bool wxGetKeyState(wxKeyCode key);
199
200
201 // Don't synthesize KeyUp events holding down a key and producing
202 // KeyDown events with autorepeat. On by default and always on
203 // in wxMSW.
204 WXDLLEXPORT bool wxSetDetectableAutoRepeat( bool flag );
205
206
207 // wxMouseState is used to hold information about button and modifier state
208 // and is what is returned from wxGetMouseState.
209 class WXDLLEXPORT wxMouseState
210 {
211 public:
212 wxMouseState()
213 : m_x(0), m_y(0),
214 m_leftDown(false), m_middleDown(false), m_rightDown(false),
215 m_controlDown(false), m_shiftDown(false), m_altDown(false),
216 m_metaDown(false)
217 {}
218
219 wxCoord GetX() { return m_x; }
220 wxCoord GetY() { return m_y; }
221
222 bool LeftDown() { return m_leftDown; }
223 bool MiddleDown() { return m_middleDown; }
224 bool RightDown() { return m_rightDown; }
225
226 bool ControlDown() { return m_controlDown; }
227 bool ShiftDown() { return m_shiftDown; }
228 bool AltDown() { return m_altDown; }
229 bool MetaDown() { return m_metaDown; }
230 bool CmdDown()
231 {
232 #if defined(__WXMAC__) || defined(__WXCOCOA__)
233 return MetaDown();
234 #else
235 return ControlDown();
236 #endif
237 }
238
239 void SetX(wxCoord x) { m_x = x; }
240 void SetY(wxCoord y) { m_y = y; }
241
242 void SetLeftDown(bool down) { m_leftDown = down; }
243 void SetMiddleDown(bool down) { m_middleDown = down; }
244 void SetRightDown(bool down) { m_rightDown = down; }
245
246 void SetControlDown(bool down) { m_controlDown = down; }
247 void SetShiftDown(bool down) { m_shiftDown = down; }
248 void SetAltDown(bool down) { m_altDown = down; }
249 void SetMetaDown(bool down) { m_metaDown = down; }
250
251 private:
252 wxCoord m_x;
253 wxCoord m_y;
254
255 bool m_leftDown : 1;
256 bool m_middleDown : 1;
257 bool m_rightDown : 1;
258
259 bool m_controlDown : 1;
260 bool m_shiftDown : 1;
261 bool m_altDown : 1;
262 bool m_metaDown : 1;
263 };
264
265
266 // Returns the current state of the mouse position, buttons and modifers
267 WXDLLEXPORT wxMouseState wxGetMouseState();
268
269 #endif // wxUSE_GUI
270
271 // ----------------------------------------------------------------------------
272 // Window ID management
273 // ----------------------------------------------------------------------------
274
275 // Ensure subsequent IDs don't clash with this one
276 WXDLLIMPEXP_BASE void wxRegisterId(long id);
277
278 // Return the current ID
279 WXDLLIMPEXP_BASE long wxGetCurrentId();
280
281 // Generate a unique ID
282 WXDLLIMPEXP_BASE long wxNewId();
283
284 // ----------------------------------------------------------------------------
285 // Various conversions
286 // ----------------------------------------------------------------------------
287
288 // Convert 2-digit hex number to decimal
289 WXDLLIMPEXP_BASE int wxHexToDec(const wxString& buf);
290
291 // Convert decimal integer to 2-character hex string
292 WXDLLIMPEXP_BASE void wxDecToHex(int dec, wxChar *buf);
293 WXDLLIMPEXP_BASE void wxDecToHex(int dec, char* ch1, char* ch2);
294 WXDLLIMPEXP_BASE wxString wxDecToHex(int dec);
295
296 // ----------------------------------------------------------------------------
297 // Process management
298 // ----------------------------------------------------------------------------
299
300 // NB: for backwards compatibility reasons the values of wxEXEC_[A]SYNC *must*
301 // be 0 and 1, don't change!
302
303 enum
304 {
305 // execute the process asynchronously
306 wxEXEC_ASYNC = 0,
307
308 // execute it synchronously, i.e. wait until it finishes
309 wxEXEC_SYNC = 1,
310
311 // under Windows, don't hide the child even if it's IO is redirected (this
312 // is done by default)
313 wxEXEC_NOHIDE = 2,
314
315 // under Unix, if the process is the group leader then passing wxKILL_CHILDREN to wxKill
316 // kills all children as well as pid
317 wxEXEC_MAKE_GROUP_LEADER = 4,
318
319 // by default synchronous execution disables all program windows to avoid
320 // that the user interacts with the program while the child process is
321 // running, you can use this flag to prevent this from happening
322 wxEXEC_NODISABLE = 8,
323
324 // by default, the event loop is run while waiting for synchronous execution
325 // to complete and this flag can be used to simply block the main process
326 // until the child process finishes
327 wxEXEC_NOEVENTS = 16,
328
329 // convenient synonym for flags given system()-like behaviour
330 wxEXEC_BLOCK = wxEXEC_SYNC | wxEXEC_NOEVENTS
331 };
332
333 // Execute another program.
334 //
335 // If flags contain wxEXEC_SYNC, return -1 on failure and the exit code of the
336 // process if everything was ok. Otherwise (i.e. if wxEXEC_ASYNC), return 0 on
337 // failure and the PID of the launched process if ok.
338 WXDLLIMPEXP_BASE long wxExecute(wxChar **argv, int flags = wxEXEC_ASYNC,
339 wxProcess *process = (wxProcess *) NULL);
340 WXDLLIMPEXP_BASE long wxExecute(const wxString& command, int flags = wxEXEC_ASYNC,
341 wxProcess *process = (wxProcess *) NULL);
342
343 // execute the command capturing its output into an array line by line, this is
344 // always synchronous
345 WXDLLIMPEXP_BASE long wxExecute(const wxString& command,
346 wxArrayString& output,
347 int flags = 0);
348
349 // also capture stderr (also synchronous)
350 WXDLLIMPEXP_BASE long wxExecute(const wxString& command,
351 wxArrayString& output,
352 wxArrayString& error,
353 int flags = 0);
354
355 #if defined(__WXMSW__) && wxUSE_IPC
356 // ask a DDE server to execute the DDE request with given parameters
357 WXDLLIMPEXP_BASE bool wxExecuteDDE(const wxString& ddeServer,
358 const wxString& ddeTopic,
359 const wxString& ddeCommand);
360 #endif // __WXMSW__ && wxUSE_IPC
361
362 enum wxSignal
363 {
364 wxSIGNONE = 0, // verify if the process exists under Unix
365 wxSIGHUP,
366 wxSIGINT,
367 wxSIGQUIT,
368 wxSIGILL,
369 wxSIGTRAP,
370 wxSIGABRT,
371 wxSIGIOT = wxSIGABRT, // another name
372 wxSIGEMT,
373 wxSIGFPE,
374 wxSIGKILL,
375 wxSIGBUS,
376 wxSIGSEGV,
377 wxSIGSYS,
378 wxSIGPIPE,
379 wxSIGALRM,
380 wxSIGTERM
381
382 // further signals are different in meaning between different Unix systems
383 };
384
385 enum wxKillError
386 {
387 wxKILL_OK, // no error
388 wxKILL_BAD_SIGNAL, // no such signal
389 wxKILL_ACCESS_DENIED, // permission denied
390 wxKILL_NO_PROCESS, // no such process
391 wxKILL_ERROR // another, unspecified error
392 };
393
394 enum wxKillFlags
395 {
396 wxKILL_NOCHILDREN = 0, // don't kill children
397 wxKILL_CHILDREN = 1 // kill children
398 };
399
400 enum wxShutdownFlags
401 {
402 wxSHUTDOWN_POWEROFF, // power off the computer
403 wxSHUTDOWN_REBOOT // shutdown and reboot
404 };
405
406 // Shutdown or reboot the PC
407 WXDLLIMPEXP_BASE bool wxShutdown(wxShutdownFlags wFlags);
408
409 // send the given signal to the process (only NONE and KILL are supported under
410 // Windows, all others mean TERM), return 0 if ok and -1 on error
411 //
412 // return detailed error in rc if not NULL
413 WXDLLIMPEXP_BASE int wxKill(long pid,
414 wxSignal sig = wxSIGTERM,
415 wxKillError *rc = NULL,
416 int flags = wxKILL_NOCHILDREN);
417
418 // Execute a command in an interactive shell window (always synchronously)
419 // If no command then just the shell
420 WXDLLIMPEXP_BASE bool wxShell(const wxString& command = wxEmptyString);
421
422 // As wxShell(), but must give a (non interactive) command and its output will
423 // be returned in output array
424 WXDLLIMPEXP_BASE bool wxShell(const wxString& command, wxArrayString& output);
425
426 // Sleep for nSecs seconds
427 WXDLLIMPEXP_BASE void wxSleep(int nSecs);
428
429 // Sleep for a given amount of milliseconds
430 WXDLLIMPEXP_BASE void wxMilliSleep(unsigned long milliseconds);
431
432 // Sleep for a given amount of microseconds
433 WXDLLIMPEXP_BASE void wxMicroSleep(unsigned long microseconds);
434
435 // Sleep for a given amount of milliseconds (old, bad name), use wxMilliSleep
436 wxDEPRECATED( WXDLLIMPEXP_BASE void wxUsleep(unsigned long milliseconds) );
437
438 // Get the process id of the current process
439 WXDLLIMPEXP_BASE unsigned long wxGetProcessId();
440
441 // Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
442 WXDLLIMPEXP_BASE wxMemorySize wxGetFreeMemory();
443
444 #if wxUSE_ON_FATAL_EXCEPTION
445
446 // should wxApp::OnFatalException() be called?
447 WXDLLIMPEXP_BASE bool wxHandleFatalExceptions(bool doit = true);
448
449 #endif // wxUSE_ON_FATAL_EXCEPTION
450
451 // ----------------------------------------------------------------------------
452 // Environment variables
453 // ----------------------------------------------------------------------------
454
455 // returns true if variable exists (value may be NULL if you just want to check
456 // for this)
457 WXDLLIMPEXP_BASE bool wxGetEnv(const wxString& var, wxString *value);
458
459 // set the env var name to the given value, return true on success
460 WXDLLIMPEXP_BASE bool wxSetEnv(const wxString& var, const wxString& value);
461
462 // remove the env var from environment
463 WXDLLIMPEXP_BASE bool wxUnsetEnv(const wxString& var);
464
465 #if WXWIN_COMPATIBILITY_2_8
466 inline bool wxSetEnv(const wxString& var, const char *value)
467 { return wxSetEnv(var, wxString(value)); }
468 inline bool wxSetEnv(const wxString& var, const wchar_t *value)
469 { return wxSetEnv(var, wxString(value)); }
470 template<typename T>
471 inline bool wxSetEnv(const wxString& var, const wxCharTypeBuffer<T>& value)
472 { return wxSetEnv(var, wxString(value)); }
473 inline bool wxSetEnv(const wxString& var, const wxCStrData& value)
474 { return wxSetEnv(var, wxString(value)); }
475
476 // this one is for passing NULL directly - don't use it, use wxUnsetEnv instead
477 wxDEPRECATED( inline bool wxSetEnv(const wxString& var, int value) );
478 inline bool wxSetEnv(const wxString& var, int value)
479 {
480 wxASSERT_MSG( value == 0, "using non-NULL integer as string?" );
481 return wxUnsetEnv(var);
482 }
483 #endif // WXWIN_COMPATIBILITY_2_8
484
485 // ----------------------------------------------------------------------------
486 // Network and username functions.
487 // ----------------------------------------------------------------------------
488
489 // NB: "char *" functions are deprecated, use wxString ones!
490
491 // Get eMail address
492 WXDLLIMPEXP_BASE bool wxGetEmailAddress(wxChar *buf, int maxSize);
493 WXDLLIMPEXP_BASE wxString wxGetEmailAddress();
494
495 // Get hostname.
496 WXDLLIMPEXP_BASE bool wxGetHostName(wxChar *buf, int maxSize);
497 WXDLLIMPEXP_BASE wxString wxGetHostName();
498
499 // Get FQDN
500 WXDLLIMPEXP_BASE wxString wxGetFullHostName();
501 WXDLLIMPEXP_BASE bool wxGetFullHostName(wxChar *buf, int maxSize);
502
503 // Get user ID e.g. jacs (this is known as login name under Unix)
504 WXDLLIMPEXP_BASE bool wxGetUserId(wxChar *buf, int maxSize);
505 WXDLLIMPEXP_BASE wxString wxGetUserId();
506
507 // Get user name e.g. Julian Smart
508 WXDLLIMPEXP_BASE bool wxGetUserName(wxChar *buf, int maxSize);
509 WXDLLIMPEXP_BASE wxString wxGetUserName();
510
511 // Get current Home dir and copy to dest (returns pstr->c_str())
512 WXDLLIMPEXP_BASE wxString wxGetHomeDir();
513 WXDLLIMPEXP_BASE const wxChar* wxGetHomeDir(wxString *pstr);
514
515 // Get the user's home dir (caller must copy --- volatile)
516 // returns NULL is no HOME dir is known
517 #if defined(__UNIX__) && wxUSE_UNICODE && !defined(__WINE__)
518 WXDLLIMPEXP_BASE const wxMB2WXbuf wxGetUserHome(const wxString& user = wxEmptyString);
519 #else
520 WXDLLIMPEXP_BASE wxChar* wxGetUserHome(const wxString& user = wxEmptyString);
521 #endif
522
523 #if wxUSE_LONGLONG
524 typedef wxLongLong wxDiskspaceSize_t;
525 #else
526 typedef long wxDiskspaceSize_t;
527 #endif
528
529 // get number of total/free bytes on the disk where path belongs
530 WXDLLIMPEXP_BASE bool wxGetDiskSpace(const wxString& path,
531 wxDiskspaceSize_t *pTotal = NULL,
532 wxDiskspaceSize_t *pFree = NULL);
533
534 #if wxUSE_GUI // GUI only things from now on
535
536 // ----------------------------------------------------------------------------
537 // Launch default browser
538 // ----------------------------------------------------------------------------
539
540 // flags for wxLaunchDefaultBrowser
541 enum
542 {
543 wxBROWSER_NEW_WINDOW = 1
544 };
545
546 // Launch url in the user's default internet browser
547 WXDLLIMPEXP_CORE bool wxLaunchDefaultBrowser(const wxString& url, int flags = 0);
548
549 // ----------------------------------------------------------------------------
550 // Menu accelerators related things
551 // ----------------------------------------------------------------------------
552
553 // flags for wxStripMenuCodes
554 enum
555 {
556 // strip '&' characters
557 wxStrip_Mnemonics = 1,
558
559 // strip everything after '\t'
560 wxStrip_Accel = 2,
561
562 // strip everything (this is the default)
563 wxStrip_All = wxStrip_Mnemonics | wxStrip_Accel
564 };
565
566 // strip mnemonics and/or accelerators from the label
567 WXDLLEXPORT wxString
568 wxStripMenuCodes(const wxString& str, int flags = wxStrip_All);
569
570 #if WXWIN_COMPATIBILITY_2_6
571 // obsolete and deprecated version, do not use, use the above overload instead
572 wxDEPRECATED(
573 WXDLLEXPORT wxChar* wxStripMenuCodes(const wxChar *in, wxChar *out = NULL)
574 );
575
576 #if wxUSE_ACCEL
577 class WXDLLEXPORT wxAcceleratorEntry;
578
579 // use wxAcceleratorEntry::Create() or FromString() methods instead
580 wxDEPRECATED(
581 WXDLLEXPORT wxAcceleratorEntry *wxGetAccelFromString(const wxString& label)
582 );
583 #endif // wxUSE_ACCEL
584
585 #endif // WXWIN_COMPATIBILITY_2_6
586
587 // ----------------------------------------------------------------------------
588 // Window search
589 // ----------------------------------------------------------------------------
590
591 // Returns menu item id or wxNOT_FOUND if none.
592 WXDLLEXPORT int wxFindMenuItemId(wxFrame *frame, const wxString& menuString, const wxString& itemString);
593
594 // Find the wxWindow at the given point. wxGenericFindWindowAtPoint
595 // is always present but may be less reliable than a native version.
596 WXDLLEXPORT wxWindow* wxGenericFindWindowAtPoint(const wxPoint& pt);
597 WXDLLEXPORT wxWindow* wxFindWindowAtPoint(const wxPoint& pt);
598
599 // NB: this function is obsolete, use wxWindow::FindWindowByLabel() instead
600 //
601 // Find the window/widget with the given title or label.
602 // Pass a parent to begin the search from, or NULL to look through
603 // all windows.
604 WXDLLEXPORT wxWindow* wxFindWindowByLabel(const wxString& title, wxWindow *parent = (wxWindow *) NULL);
605
606 // NB: this function is obsolete, use wxWindow::FindWindowByName() instead
607 //
608 // Find window by name, and if that fails, by label.
609 WXDLLEXPORT wxWindow* wxFindWindowByName(const wxString& name, wxWindow *parent = (wxWindow *) NULL);
610
611 // ----------------------------------------------------------------------------
612 // Message/event queue helpers
613 // ----------------------------------------------------------------------------
614
615 // Yield to other apps/messages and disable user input
616 WXDLLEXPORT bool wxSafeYield(wxWindow *win = NULL, bool onlyIfNeeded = false);
617
618 // Enable or disable input to all top level windows
619 WXDLLEXPORT void wxEnableTopLevelWindows(bool enable = true);
620
621 // Check whether this window wants to process messages, e.g. Stop button
622 // in long calculations.
623 WXDLLEXPORT bool wxCheckForInterrupt(wxWindow *wnd);
624
625 // Consume all events until no more left
626 WXDLLEXPORT void wxFlushEvents();
627
628 // a class which disables all windows (except, may be, thegiven one) in its
629 // ctor and enables them back in its dtor
630 class WXDLLEXPORT wxWindowDisabler
631 {
632 public:
633 wxWindowDisabler(wxWindow *winToSkip = (wxWindow *)NULL);
634 ~wxWindowDisabler();
635
636 private:
637 wxWindowList *m_winDisabled;
638
639 DECLARE_NO_COPY_CLASS(wxWindowDisabler)
640 };
641
642 // ----------------------------------------------------------------------------
643 // Cursors
644 // ----------------------------------------------------------------------------
645
646 // Set the cursor to the busy cursor for all windows
647 WXDLLIMPEXP_CORE void wxBeginBusyCursor(const wxCursor *cursor = wxHOURGLASS_CURSOR);
648
649 // Restore cursor to normal
650 WXDLLEXPORT void wxEndBusyCursor();
651
652 // true if we're between the above two calls
653 WXDLLEXPORT bool wxIsBusy();
654
655 // Convenience class so we can just create a wxBusyCursor object on the stack
656 class WXDLLEXPORT wxBusyCursor
657 {
658 public:
659 wxBusyCursor(const wxCursor* cursor = wxHOURGLASS_CURSOR)
660 { wxBeginBusyCursor(cursor); }
661 ~wxBusyCursor()
662 { wxEndBusyCursor(); }
663
664 // FIXME: These two methods are currently only implemented (and needed?)
665 // in wxGTK. BusyCursor handling should probably be moved to
666 // common code since the wxGTK and wxMSW implementations are very
667 // similar except for wxMSW using HCURSOR directly instead of
668 // wxCursor.. -- RL.
669 static const wxCursor &GetStoredCursor();
670 static const wxCursor GetBusyCursor();
671 };
672
673 void WXDLLEXPORT wxGetMousePosition( int* x, int* y );
674
675 // MSW only: get user-defined resource from the .res file.
676 // Returns NULL or newly-allocated memory, so use delete[] to clean up.
677 #ifdef __WXMSW__
678 extern WXDLLEXPORT const wxChar* wxUserResourceStr;
679 WXDLLEXPORT wxChar* wxLoadUserResource(const wxString& resourceName, const wxString& resourceType = wxUserResourceStr);
680 #endif // MSW
681
682 // ----------------------------------------------------------------------------
683 // X11 Display access
684 // ----------------------------------------------------------------------------
685
686 #if defined(__X__) || defined(__WXGTK__)
687
688 #ifdef __WXGTK__
689 void *wxGetDisplay();
690 #endif
691
692 #ifdef __X__
693 WXDLLIMPEXP_CORE WXDisplay *wxGetDisplay();
694 WXDLLIMPEXP_CORE bool wxSetDisplay(const wxString& display_name);
695 WXDLLIMPEXP_CORE wxString wxGetDisplayName();
696 #endif // X or GTK+
697
698 // use this function instead of the functions above in implementation code
699 inline struct _XDisplay *wxGetX11Display()
700 {
701 return (_XDisplay *)wxGetDisplay();
702 }
703
704 #endif // X11 || wxGTK
705
706 #endif // wxUSE_GUI
707
708 // ----------------------------------------------------------------------------
709 // wxYield(): these functions are obsolete, please use wxApp methods instead!
710 // ----------------------------------------------------------------------------
711
712 // Yield to other apps/messages
713 WXDLLIMPEXP_BASE bool wxYield();
714
715 // Like wxYield, but fails silently if the yield is recursive.
716 WXDLLIMPEXP_BASE bool wxYieldIfNeeded();
717
718 // ----------------------------------------------------------------------------
719 // Error message functions used by wxWidgets (deprecated, use wxLog)
720 // ----------------------------------------------------------------------------
721
722 #endif
723 // _WX_UTILSH__