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 #ifdef __GNUG__
  16 #pragma interface "utils.h"
  17 #endif
  18
  19 #include "wx/setup.h"
  20 #include "wx/object.h"
  21 #include "wx/list.h"
  22 #include "wx/window.h"
  23 #include "wx/filefn.h"
  24 #include "wx/process.h"
  25
  26 #if USE_IOSTREAMH
  27 #include <iostream.h>
  28 #else
  29 #include <iostream>
  30 #endif
  31
  32 #ifdef __X__
  33 #ifndef __VMS__
  34 /*steve: these two are not known under VMS */
  35 #include <dirent.h>
  36 #include <unistd.h>
  37 #endif
  38 #endif
  39
  40 #include <stdio.h>
  41
  42 #ifdef __GNUWIN32__
  43 #define stricmp strcasecmp
  44 #define strnicmp strncasecmp
  45 #endif
  46
  47 // Forward declaration
  48 class WXDLLEXPORT wxFrame;
  49
  50 // Stupid ASCII macros
  51 #define   wxToUpper(C)      (((C) >= 'a' && (C) <= 'z')? (C) - 'a' + 'A': (C))
  52 #define   wxToLower(C)      (((C) >= 'A' && (C) <= 'Z')? (C) - 'A' + 'a': (C))
  53
  54 // Return a string with the current date/time
  55 wxString WXDLLEXPORT wxNow(void);
  56
  57 // Make a copy of this string using 'new'
  58 char* WXDLLEXPORT copystring(const char *s);
  59
  60 // Generate a unique ID
  61 long WXDLLEXPORT wxNewId(void);
  62 #define NewId wxNewId
  63
  64 // Ensure subsequent IDs don't clash with this one
  65 void WXDLLEXPORT wxRegisterId(long id);
  66 #define RegisterId wxRegisterId
  67
  68 // Return the current ID
  69 long WXDLLEXPORT wxGetCurrentId(void);
  70
  71 // Useful buffer
  72 WXDLLEXPORT_DATA(extern char*) wxBuffer;
  73
  74 WXDLLEXPORT_DATA(extern const char*) wxFloatToStringStr;
  75 WXDLLEXPORT_DATA(extern const char*) wxDoubleToStringStr;
  76
  77 // Various conversions
  78 void WXDLLEXPORT StringToFloat(char *s, float *number);
  79 char* WXDLLEXPORT FloatToString(float number, const char *fmt = wxFloatToStringStr);
  80 void WXDLLEXPORT StringToDouble(char *s, double *number);
  81 char* WXDLLEXPORT DoubleToString(double number, const char *fmt = wxDoubleToStringStr);
  82 void WXDLLEXPORT StringToInt(char *s, int *number);
  83 void WXDLLEXPORT StringToLong(char *s, long *number);
  84 char* WXDLLEXPORT IntToString(int number);
  85 char* WXDLLEXPORT LongToString(long number);
  86
  87 // Matches string one within string two regardless of case
  88 bool WXDLLEXPORT StringMatch(char *one, char *two, bool subString = TRUE, bool exact = FALSE);
  89
  90 // A shorter way of using strcmp
  91 #define wxStringEq(s1, s2) (s1 && s2 && (strcmp(s1, s2) == 0))
  92
  93 // Convert 2-digit hex number to decimal
  94 int WXDLLEXPORT wxHexToDec(char *buf);
  95
  96 // Convert decimal integer to 2-character hex string
  97 void WXDLLEXPORT wxDecToHex(int dec, char *buf);
  98
  99 // Execute another program. Returns 0 if there was an error, a PID otherwise.
 100 long WXDLLEXPORT wxExecute(char **argv, bool Async = FALSE,
 101                            wxProcess *process = (wxProcess *) NULL);
 102 long WXDLLEXPORT wxExecute(const wxString& command, bool Async = FALSE,
 103                            wxProcess *process = (wxProcess *) NULL);
 104
 105 #define wxSIGTERM 1
 106
 107 int WXDLLEXPORT wxKill(long pid, int sig=wxSIGTERM);
 108
 109 // Execute a command in an interactive shell window
 110 // If no command then just the shell
 111 bool WXDLLEXPORT wxShell(const wxString& command = "");
 112
 113 // Sleep for nSecs seconds under UNIX, do nothing under Windows
 114 void WXDLLEXPORT wxSleep(int nSecs);
 115
 116 // Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
 117 long WXDLLEXPORT wxGetFreeMemory(void);
 118
 119 // Consume all events until no more left
 120 void WXDLLEXPORT wxFlushEvents(void);
 121
 122 /*
 123  * Network and username functions.
 124  *
 125  */
 126
 127 // Get eMail address
 128 bool WXDLLEXPORT wxGetEmailAddress(char *buf, int maxSize);
 129
 130 // Get hostname.
 131 bool WXDLLEXPORT wxGetHostName(char *buf, int maxSize);
 132
 133 // Get user ID e.g. jacs
 134 bool WXDLLEXPORT wxGetUserId(char *buf, int maxSize);
 135
 136 // Get user name e.g. Julian Smart
 137 bool WXDLLEXPORT wxGetUserName(char *buf, int maxSize);
 138
 139 /*
 140  * Strip out any menu codes
 141  */
 142 char* WXDLLEXPORT wxStripMenuCodes(char *in, char *out = (char *) NULL);
 143
 144 // Find the window/widget with the given title or label.
 145 // Pass a parent to begin the search from, or NULL to look through
 146 // all windows.
 147 wxWindow* WXDLLEXPORT wxFindWindowByLabel(const wxString& title, wxWindow *parent = (wxWindow *) NULL);
 148
 149 // Find window by name, and if that fails, by label.
 150 wxWindow* WXDLLEXPORT wxFindWindowByName(const wxString& name, wxWindow *parent = (wxWindow *) NULL);
 151
 152 // Returns menu item id or -1 if none.
 153 int WXDLLEXPORT wxFindMenuItemId(wxFrame *frame, const wxString& menuString, const wxString& itemString);
 154
 155 // A debugging stream buffer.
 156 // Under Windows, this writes to the Windows debug output.
 157 // Under other platforms, it writes to cerr.
 158
 159 // ALl this horrible gubbins required for Borland, because the calling
 160 // convention needs to be the same as for streambuf.
 161 // Thanks to Gerhard.Vogt@embl-heidelberg.de for this solution.
 162
 163 #if defined(__BORLANDC__) && defined(__BCOPT__) && !defined(_RTL_ALLOW_po) && !defined(__FLAT__)
 164 #pragma option -po-
 165 #endif
 166
 167 // Can't export a class derived from a non-export class
 168 #if !defined(_WINDLL) && !defined(WXUSINGDLL)
 169
 170 #ifdef new
 171 #undef new
 172 #endif
 173
 174 class WXDLLEXPORT wxDebugStreamBuf: public streambuf
 175 {
 176   public:
 177     wxDebugStreamBuf(void);
 178     ~wxDebugStreamBuf(void) {}
 179
 180     int overflow(int i);
 181     inline int underflow(void) { return EOF; }
 182     int sync(void);
 183 };
 184
 185 #if WXDEBUG && USE_GLOBAL_MEMORY_OPERATORS
 186 #define new WXDEBUG_NEW
 187 #endif
 188
 189 #endif
 190
 191 #if defined(__BORLANDC__) && defined(__BCOPT__) && !defined(_RTL_ALLOW_po) && !defined(__FLAT__)
 192 #pragma option -po.
 193 #endif
 194
 195 /*
 196 #if (!defined(__MINMAX_DEFINED) && !defined(max))
 197 #define max(a,b)            (((a) > (b)) ? (a) : (b))
 198 #define min(a,b)            (((a) < (b)) ? (a) : (b))
 199 #define __MINMAX_DEFINED 1
 200 #endif
 201 */
 202 #define wxMax(a,b)            (((a) > (b)) ? (a) : (b))
 203 #define wxMin(a,b)            (((a) < (b)) ? (a) : (b))
 204
 205 // Yield to other apps/messages
 206 bool WXDLLEXPORT wxYield(void);
 207
 208 // Format a message on the standard error (UNIX) or the debugging
 209 // stream (Windows)
 210 void WXDLLEXPORT wxDebugMsg(const char *fmt ...) ;
 211
 212 // Sound the bell
 213 void WXDLLEXPORT wxBell(void) ;
 214
 215 // Get OS version
 216 int WXDLLEXPORT wxGetOsVersion(int *majorVsn= (int *) NULL,int *minorVsn= (int *) NULL) ;
 217
 218 // Set the cursor to the busy cursor for all windows
 219 class WXDLLEXPORT wxCursor;
 220 WXDLLEXPORT_DATA(extern wxCursor*) wxHOURGLASS_CURSOR;
 221 void WXDLLEXPORT wxBeginBusyCursor(wxCursor *cursor = wxHOURGLASS_CURSOR);
 222
 223 // Restore cursor to normal
 224 void WXDLLEXPORT wxEndBusyCursor(void);
 225
 226 // TRUE if we're between the above two calls
 227 bool WXDLLEXPORT wxIsBusy(void);
 228
 229 /* Error message functions used by wxWindows */
 230
 231 // Non-fatal error (continues)
 232 WXDLLEXPORT_DATA(extern const char*) wxInternalErrorStr;
 233 void WXDLLEXPORT wxError(const wxString& msg, const wxString& title = wxInternalErrorStr);
 234
 235 // Fatal error (exits)
 236 WXDLLEXPORT_DATA(extern const char*) wxFatalErrorStr;
 237 void WXDLLEXPORT wxFatalError(const wxString& msg, const wxString& title = wxFatalErrorStr);
 238
 239 // Reading and writing resources (eg WIN.INI, .Xdefaults)
 240 #if USE_RESOURCES
 241 bool WXDLLEXPORT wxWriteResource(const wxString& section, const wxString& entry, const wxString& value, const wxString& file = "");
 242 bool WXDLLEXPORT wxWriteResource(const wxString& section, const wxString& entry, float value, const wxString& file = "");
 243 bool WXDLLEXPORT wxWriteResource(const wxString& section, const wxString& entry, long value, const wxString& file = "");
 244 bool WXDLLEXPORT wxWriteResource(const wxString& section, const wxString& entry, int value, const wxString& file = "");
 245
 246 bool WXDLLEXPORT wxGetResource(const wxString& section, const wxString& entry, char **value, const wxString& file = "");
 247 bool WXDLLEXPORT wxGetResource(const wxString& section, const wxString& entry, float *value, const wxString& file = "");
 248 bool WXDLLEXPORT wxGetResource(const wxString& section, const wxString& entry, long *value, const wxString& file = "");
 249 bool WXDLLEXPORT wxGetResource(const wxString& section, const wxString& entry, int *value, const wxString& file = "");
 250 #endif // USE_RESOURCES
 251
 252 // Get current Home dir and copy to dest (returns pstr->c_str())
 253 const char* WXDLLEXPORT wxGetHomeDir(wxString *pstr);
 254
 255 // Get the user's home dir (caller must copy--- volatile)
 256 // returns NULL is no HOME dir is known
 257 char* WXDLLEXPORT wxGetUserHome(const wxString& user = "");
 258
 259 // Check whether this window wants to process messages, e.g. Stop button
 260 // in long calculations.
 261 bool WXDLLEXPORT wxCheckForInterrupt(wxWindow *wnd);
 262
 263 void WXDLLEXPORT wxGetMousePosition( int* x, int* y );
 264
 265 // MSW only: get user-defined resource from the .res file.
 266 // Returns NULL or newly-allocated memory, so use delete[] to clean up.
 267 #ifdef __WXMSW__
 268 extern const char* WXDLLEXPORT wxUserResourceStr;
 269 char* WXDLLEXPORT wxLoadUserResource(const wxString& resourceName, const wxString& resourceType = wxUserResourceStr);
 270 #endif
 271
 272 // X only
 273 #ifdef __X__
 274 // Get X display: often needed in the wxWindows implementation.
 275 Display *wxGetDisplay(void);
 276 /* Matthew Flatt: Added wxSetDisplay and wxGetDisplayName */
 277 bool wxSetDisplay(const wxString& display_name);
 278 wxString wxGetDisplayName(void);
 279 #endif
 280
 281 #ifdef __X__
 282
 283 #include <X11/Xlib.h>
 284
 285 #define wxMAX_RGB           0xff
 286 #define wxMAX_SV            1000
 287 #define wxSIGN(x)           ((x < 0) ? -x : x)
 288 #define wxH_WEIGHT          4
 289 #define wxS_WEIGHT          1
 290 #define wxV_WEIGHT          2
 291
 292 typedef struct wx_hsv {
 293                         int h,s,v;
 294                       } wxHSV;
 295
 296 #define wxMax3(x,y,z) ((x > y) ? ((x > z) ? x : z) : ((y > z) ? y : z))
 297 #define wxMin3(x,y,z) ((x < y) ? ((x < z) ? x : z) : ((y < z) ? y : z))
 298
 299 #define wxMax2(x,y)   ((x > y) ? x : y)
 300 #define wxMin2(x,y)   ((x < y) ? x : y)
 301
 302 void wxHSVToXColor(wxHSV *hsv,XColor *xcolor);
 303 void wxXColorToHSV(wxHSV *hsv,XColor *xcolor);
 304 void wxAllocNearestColor(Display *display,Colormap colormap,XColor *xcolor);
 305 void wxAllocColor(Display *display,Colormap colormap,XColor *xcolor);
 306
 307 #endif //__X__
 308
 309 #endif
 310     // _WX_UTILSH__