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