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