include/wx/utils.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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 license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_UTILSH__
  13 #define _WX_UTILSH__
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 #ifdef __GNUG__
  20     #pragma interface "utils.h"
  21 #endif
  22
  23 #include "wx/setup.h"
  24 #include "wx/object.h"
  25 #include "wx/list.h"
  26 #include "wx/filefn.h"
  27
  28 #ifdef __X__
  29     #include <dirent.h>
  30     #include <unistd.h>
  31 #endif
  32
  33 #include <stdio.h>
  34
  35 // ----------------------------------------------------------------------------
  36 // Forward declaration
  37 // ----------------------------------------------------------------------------
  38
  39 class WXDLLEXPORT wxProcess;
  40 class WXDLLEXPORT wxFrame;
  41 class WXDLLEXPORT wxWindow;
  42 class WXDLLEXPORT wxWindowList;
  43
  44 // FIXME should use wxStricmp() instead
  45 #if defined(__GNUWIN32__)
  46     #define stricmp strcasecmp
  47     #define strnicmp strncasecmp
  48 #endif
  49
  50 // ----------------------------------------------------------------------------
  51 // Macros
  52 // ----------------------------------------------------------------------------
  53
  54 #define wxMax(a,b)            (((a) > (b)) ? (a) : (b))
  55 #define wxMin(a,b)            (((a) < (b)) ? (a) : (b))
  56
  57 // ----------------------------------------------------------------------------
  58 // String functions (deprecated, use wxString)
  59 // ----------------------------------------------------------------------------
  60
  61 // Useful buffer (FIXME VZ: yeah, that is. To be removed!)
  62 WXDLLEXPORT_DATA(extern wxChar*) wxBuffer;
  63
  64 // Make a copy of this string using 'new'
  65 WXDLLEXPORT wxChar* copystring(const wxChar *s);
  66
  67 // Matches string one within string two regardless of case
  68 WXDLLEXPORT bool StringMatch(wxChar *one, wxChar *two, bool subString = TRUE, bool exact = FALSE);
  69
  70 // A shorter way of using strcmp
  71 #define wxStringEq(s1, s2) (s1 && s2 && (wxStrcmp(s1, s2) == 0))
  72
  73 // ----------------------------------------------------------------------------
  74 // Miscellaneous functions
  75 // ----------------------------------------------------------------------------
  76
  77 // Sound the bell
  78 WXDLLEXPORT void wxBell();
  79
  80 // Get OS description as a user-readable string
  81 WXDLLEXPORT wxString wxGetOsDescription();
  82
  83 // Get OS version
  84 WXDLLEXPORT int wxGetOsVersion(int *majorVsn = (int *) NULL,
  85                                int *minorVsn = (int *) NULL);
  86
  87 // Return a string with the current date/time
  88 WXDLLEXPORT wxString wxNow();
  89
  90 #if wxUSE_GUI
  91 // Don't synthesize KeyUp events holding down a key and producing
  92 // KeyDown events with autorepeat. On by default and always on
  93 // in wxMSW.
  94 WXDLLEXPORT bool wxSetDetectableAutoRepeat( bool flag );
  95
  96 // ----------------------------------------------------------------------------
  97 // Window ID management
  98 // ----------------------------------------------------------------------------
  99
 100 // Generate a unique ID
 101 WXDLLEXPORT long wxNewId();
 102 #if !defined(NewId) && defined(WXWIN_COMPATIBILITY)
 103     #define NewId wxNewId
 104 #endif
 105
 106 // Ensure subsequent IDs don't clash with this one
 107 WXDLLEXPORT void wxRegisterId(long id);
 108 #if !defined(RegisterId) && defined(WXWIN_COMPATIBILITY)
 109     #define RegisterId wxRegisterId
 110 #endif
 111
 112 // Return the current ID
 113 WXDLLEXPORT long wxGetCurrentId();
 114
 115 #endif // wxUSE_GUI
 116
 117 // ----------------------------------------------------------------------------
 118 // Various conversions
 119 // ----------------------------------------------------------------------------
 120
 121 WXDLLEXPORT_DATA(extern const wxChar*) wxFloatToStringStr;
 122 WXDLLEXPORT_DATA(extern const wxChar*) wxDoubleToStringStr;
 123
 124 WXDLLEXPORT void StringToFloat(wxChar *s, float *number);
 125 WXDLLEXPORT wxChar* FloatToString(float number, const wxChar *fmt = wxFloatToStringStr);
 126 WXDLLEXPORT void StringToDouble(wxChar *s, double *number);
 127 WXDLLEXPORT wxChar* DoubleToString(double number, const wxChar *fmt = wxDoubleToStringStr);
 128 WXDLLEXPORT void StringToInt(wxChar *s, int *number);
 129 WXDLLEXPORT void StringToLong(wxChar *s, long *number);
 130 WXDLLEXPORT wxChar* IntToString(int number);
 131 WXDLLEXPORT wxChar* LongToString(long number);
 132
 133 // Convert 2-digit hex number to decimal
 134 WXDLLEXPORT int wxHexToDec(const wxString& buf);
 135
 136 // Convert decimal integer to 2-character hex string
 137 WXDLLEXPORT void wxDecToHex(int dec, wxChar *buf);
 138 WXDLLEXPORT wxString wxDecToHex(int dec);
 139
 140 // ----------------------------------------------------------------------------
 141 // Process management
 142 // ----------------------------------------------------------------------------
 143
 144 // Execute another program. Returns 0 if there was an error, a PID otherwise.
 145 WXDLLEXPORT long wxExecute(wxChar **argv, bool sync = FALSE,
 146                            wxProcess *process = (wxProcess *) NULL);
 147 WXDLLEXPORT long wxExecute(const wxString& command, bool sync = FALSE,
 148                            wxProcess *process = (wxProcess *) NULL);
 149
 150 // execute the command capturing its output into an array line by line
 151 WXDLLEXPORT long wxExecute(const wxString& command, wxArrayString& output);
 152
 153 enum wxSignal
 154 {
 155     wxSIGNONE = 0,  // verify if the process exists under Unix
 156     wxSIGHUP,
 157     wxSIGINT,
 158     wxSIGQUIT,
 159     wxSIGILL,
 160     wxSIGTRAP,
 161     wxSIGABRT,
 162     wxSIGIOT = wxSIGABRT,   // another name
 163     wxSIGEMT,
 164     wxSIGFPE,
 165     wxSIGKILL,
 166     wxSIGBUS,
 167     wxSIGSEGV,
 168     wxSIGSYS,
 169     wxSIGPIPE,
 170     wxSIGALRM,
 171     wxSIGTERM
 172
 173     // further signals are different in meaning between different Unix systems
 174 };
 175
 176 // the argument is ignored under Windows - the process is always killed
 177 WXDLLEXPORT int wxKill(long pid, wxSignal sig = wxSIGTERM);
 178
 179 // Execute a command in an interactive shell window (always synchronously)
 180 // If no command then just the shell
 181 WXDLLEXPORT bool wxShell(const wxString& command = wxEmptyString);
 182
 183 // As wxShell(), but must give a (non interactive) command and its output will
 184 // be returned in output array
 185 WXDLLEXPORT bool wxShell(const wxString& command, wxArrayString& output);
 186
 187 // Sleep for nSecs seconds
 188 WXDLLEXPORT void wxSleep(int nSecs);
 189
 190 // Sleep for a given amount of milliseconds
 191 WXDLLEXPORT void wxUsleep(unsigned long milliseconds);
 192
 193 // Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
 194 WXDLLEXPORT long wxGetFreeMemory();
 195
 196 // ----------------------------------------------------------------------------
 197 // Network and username functions.
 198 // ----------------------------------------------------------------------------
 199
 200 // NB: "char *" functions are deprecated, use wxString ones!
 201
 202 // Get eMail address
 203 WXDLLEXPORT bool wxGetEmailAddress(wxChar *buf, int maxSize);
 204 WXDLLEXPORT wxString wxGetEmailAddress();
 205
 206 // Get hostname.
 207 WXDLLEXPORT bool wxGetHostName(wxChar *buf, int maxSize);
 208 WXDLLEXPORT wxString wxGetHostName();
 209
 210 // Get FQDN
 211 WXDLLEXPORT wxString wxGetFullHostName();
 212 WXDLLEXPORT bool wxGetFullHostName(wxChar *buf, int maxSize);
 213
 214 // Get user ID e.g. jacs (this is known as login name under Unix)
 215 WXDLLEXPORT bool wxGetUserId(wxChar *buf, int maxSize);
 216 WXDLLEXPORT wxString wxGetUserId();
 217
 218 // Get user name e.g. Julian Smart
 219 WXDLLEXPORT bool wxGetUserName(wxChar *buf, int maxSize);
 220 WXDLLEXPORT wxString wxGetUserName();
 221
 222 // Get current Home dir and copy to dest (returns pstr->c_str())
 223 WXDLLEXPORT wxString wxGetHomeDir();
 224 WXDLLEXPORT const wxChar* wxGetHomeDir(wxString *pstr);
 225
 226 // Get the user's home dir (caller must copy --- volatile)
 227 // returns NULL is no HOME dir is known
 228 #if defined(__UNIX__) && wxUSE_UNICODE
 229 WXDLLEXPORT const wxMB2WXbuf wxGetUserHome(const wxString& user = wxEmptyString);
 230 #else
 231 WXDLLEXPORT wxChar* wxGetUserHome(const wxString& user = wxEmptyString);
 232 #endif
 233
 234 #if wxUSE_GUI // GUI only things from now on
 235
 236 // ----------------------------------------------------------------------------
 237 // Menu accelerators related things
 238 // ----------------------------------------------------------------------------
 239
 240 WXDLLEXPORT wxChar* wxStripMenuCodes(wxChar *in, wxChar *out = (wxChar *) NULL);
 241 WXDLLEXPORT wxString wxStripMenuCodes(const wxString& str);
 242
 243 #if wxUSE_ACCEL
 244 class WXDLLEXPORT wxAcceleratorEntry;
 245 WXDLLEXPORT wxAcceleratorEntry *wxGetAccelFromString(const wxString& label);
 246 #endif // wxUSE_ACCEL
 247
 248 // ----------------------------------------------------------------------------
 249 // Window search
 250 // ----------------------------------------------------------------------------
 251
 252 // Find the window/widget with the given title or label.
 253 // Pass a parent to begin the search from, or NULL to look through
 254 // all windows.
 255 WXDLLEXPORT wxWindow* wxFindWindowByLabel(const wxString& title, wxWindow *parent = (wxWindow *) NULL);
 256
 257 // Find window by name, and if that fails, by label.
 258 WXDLLEXPORT wxWindow* wxFindWindowByName(const wxString& name, wxWindow *parent = (wxWindow *) NULL);
 259
 260 // Returns menu item id or -1 if none.
 261 WXDLLEXPORT int wxFindMenuItemId(wxFrame *frame, const wxString& menuString, const wxString& itemString);
 262
 263 // ----------------------------------------------------------------------------
 264 // Message/event queue helpers
 265 // ----------------------------------------------------------------------------
 266
 267 // Yield to other apps/messages
 268 WXDLLEXPORT bool wxYield();
 269
 270 // Yield to other apps/messages and disable user input
 271 WXDLLEXPORT bool wxSafeYield(wxWindow *win = NULL);
 272
 273 // Enable or disable input to all top level windows
 274 WXDLLEXPORT void wxEnableTopLevelWindows(bool enable = TRUE);
 275
 276 // Check whether this window wants to process messages, e.g. Stop button
 277 // in long calculations.
 278 WXDLLEXPORT bool wxCheckForInterrupt(wxWindow *wnd);
 279
 280 // Consume all events until no more left
 281 WXDLLEXPORT void wxFlushEvents();
 282
 283 // a class which disables all windows (except, may be, thegiven one) in its
 284 // ctor and enables them back in its dtor
 285 class WXDLLEXPORT wxWindowDisabler
 286 {
 287 public:
 288     wxWindowDisabler(wxWindow *winToSkip = (wxWindow *)NULL);
 289     ~wxWindowDisabler();
 290
 291 private:
 292     wxWindowList *m_winDisabled;
 293
 294 #ifdef __WXMSW__
 295     wxWindow *m_winTop;
 296 #endif // MSW
 297 };
 298
 299 // ----------------------------------------------------------------------------
 300 // Cursors
 301 // ----------------------------------------------------------------------------
 302
 303 // Set the cursor to the busy cursor for all windows
 304 class WXDLLEXPORT wxCursor;
 305 WXDLLEXPORT_DATA(extern wxCursor*) wxHOURGLASS_CURSOR;
 306 WXDLLEXPORT void wxBeginBusyCursor(wxCursor *cursor = wxHOURGLASS_CURSOR);
 307
 308 // Restore cursor to normal
 309 WXDLLEXPORT void wxEndBusyCursor();
 310
 311 // TRUE if we're between the above two calls
 312 WXDLLEXPORT bool wxIsBusy();
 313
 314 // Convenience class so we can just create a wxBusyCursor object on the stack
 315 class WXDLLEXPORT wxBusyCursor
 316 {
 317 public:
 318     wxBusyCursor(wxCursor* cursor = wxHOURGLASS_CURSOR)
 319         { wxBeginBusyCursor(cursor); }
 320    ~wxBusyCursor()
 321         { wxEndBusyCursor(); }
 322 };
 323
 324 // ----------------------------------------------------------------------------
 325 // Error message functions used by wxWindows (deprecated, use wxLog)
 326 // ----------------------------------------------------------------------------
 327
 328 // Format a message on the standard error (UNIX) or the debugging
 329 // stream (Windows)
 330 WXDLLEXPORT void wxDebugMsg(const wxChar *fmt ...);
 331
 332 // Non-fatal error (continues)
 333 WXDLLEXPORT_DATA(extern const wxChar*) wxInternalErrorStr;
 334 WXDLLEXPORT void wxError(const wxString& msg, const wxString& title = wxInternalErrorStr);
 335
 336 // Fatal error (exits)
 337 WXDLLEXPORT_DATA(extern const wxChar*) wxFatalErrorStr;
 338 WXDLLEXPORT void wxFatalError(const wxString& msg, const wxString& title = wxFatalErrorStr);
 339
 340 // ----------------------------------------------------------------------------
 341 // Reading and writing resources (eg WIN.INI, .Xdefaults)
 342 // ----------------------------------------------------------------------------
 343
 344 #if wxUSE_RESOURCES
 345 WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, const wxString& value, const wxString& file = wxEmptyString);
 346 WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, float value, const wxString& file = wxEmptyString);
 347 WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, long value, const wxString& file = wxEmptyString);
 348 WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, int value, const wxString& file = wxEmptyString);
 349
 350 WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, wxChar **value, const wxString& file = wxEmptyString);
 351 WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, float *value, const wxString& file = wxEmptyString);
 352 WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, long *value, const wxString& file = wxEmptyString);
 353 WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, int *value, const wxString& file = wxEmptyString);
 354 #endif // wxUSE_RESOURCES
 355
 356 void WXDLLEXPORT wxGetMousePosition( int* x, int* y );
 357
 358 // MSW only: get user-defined resource from the .res file.
 359 // Returns NULL or newly-allocated memory, so use delete[] to clean up.
 360 #ifdef __WXMSW__
 361 WXDLLEXPORT extern const wxChar* wxUserResourceStr;
 362 WXDLLEXPORT wxChar* wxLoadUserResource(const wxString& resourceName, const wxString& resourceType = wxUserResourceStr);
 363
 364 // Implemented in utils.cpp: VC++, Win95 only. Sets up a console for standard
 365 // input/output
 366 WXDLLEXPORT void wxRedirectIOToConsole();
 367
 368 #endif // MSW
 369
 370 // ----------------------------------------------------------------------------
 371 // Display and colorss (X only)
 372 // ----------------------------------------------------------------------------
 373
 374 #ifdef __WXGTK__
 375     void *wxGetDisplay();
 376 #endif
 377
 378 #ifdef __X__
 379     WXDisplay *wxGetDisplay();
 380     bool wxSetDisplay(const wxString& display_name);
 381     wxString wxGetDisplayName();
 382 #endif // X or GTK+
 383
 384 #ifdef __X__
 385
 386 #ifdef __VMS__ // Xlib.h for VMS is not (yet) compatible with C++
 387                // The resulting warnings are switched off here
 388 #pragma message disable nosimpint
 389 #endif
 390 #include <X11/Xlib.h>
 391 #ifdef __VMS__
 392 #pragma message enable nosimpint
 393 #endif
 394
 395 #define wxMAX_RGB           0xff
 396 #define wxMAX_SV            1000
 397 #define wxSIGN(x)           ((x < 0) ? -x : x)
 398 #define wxH_WEIGHT          4
 399 #define wxS_WEIGHT          1
 400 #define wxV_WEIGHT          2
 401
 402 typedef struct wx_hsv {
 403                         int h,s,v;
 404                       } wxHSV;
 405
 406 #define wxMax3(x,y,z) ((x > y) ? ((x > z) ? x : z) : ((y > z) ? y : z))
 407 #define wxMin3(x,y,z) ((x < y) ? ((x < z) ? x : z) : ((y < z) ? y : z))
 408
 409 void wxHSVToXColor(wxHSV *hsv,XColor *xcolor);
 410 void wxXColorToHSV(wxHSV *hsv,XColor *xcolor);
 411 void wxAllocNearestColor(Display *display,Colormap colormap,XColor *xcolor);
 412 void wxAllocColor(Display *display,Colormap colormap,XColor *xcolor);
 413
 414 #endif //__X__
 415
 416 #endif // wxUSE_GUI
 417
 418 #endif
 419     // _WX_UTILSH__