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
  25 #include "wx/ioswrap.h"
  26
  27 class WXDLLEXPORT wxProcess;
  28
  29 #ifdef __X__
  30 #ifndef __VMS__
  31 /*steve: these two are not known under VMS */
  32 #include <dirent.h>
  33 #include <unistd.h>
  34 #endif
  35 #endif
  36
  37 #include <stdio.h>
  38
  39 #ifdef __GNUWIN32__
  40 #define stricmp strcasecmp
  41 #define strnicmp strncasecmp
  42 #endif
  43
  44 // Forward declaration
  45 class WXDLLEXPORT wxFrame;
  46
  47 // Stupid ASCII macros
  48 #define   wxToUpper(C)      (((C) >= 'a' && (C) <= 'z')? (C) - 'a' + 'A': (C))
  49 #define   wxToLower(C)      (((C) >= 'A' && (C) <= 'Z')? (C) - 'A' + 'a': (C))
  50
  51 // Return a string with the current date/time
  52 WXDLLEXPORT wxString wxNow();
  53
  54 // Make a copy of this string using 'new'
  55 WXDLLEXPORT char* copystring(const char *s);
  56
  57 // Generate a unique ID
  58 WXDLLEXPORT long wxNewId();
  59 #define NewId wxNewId
  60
  61 // Ensure subsequent IDs don't clash with this one
  62 WXDLLEXPORT void wxRegisterId(long id);
  63 #define RegisterId wxRegisterId
  64
  65 // Return the current ID
  66 WXDLLEXPORT long wxGetCurrentId();
  67
  68 // Useful buffer
  69 WXDLLEXPORT_DATA(extern char*) wxBuffer;
  70
  71 WXDLLEXPORT_DATA(extern const char*) wxFloatToStringStr;
  72 WXDLLEXPORT_DATA(extern const char*) wxDoubleToStringStr;
  73
  74 // Various conversions
  75 WXDLLEXPORT void StringToFloat(char *s, float *number);
  76 WXDLLEXPORT char* FloatToString(float number, const char *fmt = wxFloatToStringStr);
  77 WXDLLEXPORT void StringToDouble(char *s, double *number);
  78 WXDLLEXPORT char* DoubleToString(double number, const char *fmt = wxDoubleToStringStr);
  79 WXDLLEXPORT void StringToInt(char *s, int *number);
  80 WXDLLEXPORT void StringToLong(char *s, long *number);
  81 WXDLLEXPORT char* IntToString(int number);
  82 WXDLLEXPORT char* LongToString(long number);
  83
  84 // Matches string one within string two regardless of case
  85 WXDLLEXPORT bool StringMatch(char *one, char *two, bool subString = TRUE, bool exact = FALSE);
  86
  87 // A shorter way of using strcmp
  88 #define wxStringEq(s1, s2) (s1 && s2 && (strcmp(s1, s2) == 0))
  89
  90 // Convert 2-digit hex number to decimal
  91 WXDLLEXPORT int wxHexToDec(const wxString& buf);
  92
  93 // Convert decimal integer to 2-character hex string
  94 WXDLLEXPORT void wxDecToHex(int dec, char *buf);
  95 WXDLLEXPORT wxString wxDecToHex(int dec);
  96
  97 // Execute another program. Returns 0 if there was an error, a PID otherwise.
  98 WXDLLEXPORT long wxExecute(char **argv, bool sync = FALSE,
  99                            wxProcess *process = (wxProcess *) NULL);
 100 WXDLLEXPORT long wxExecute(const wxString& command, bool sync = FALSE,
 101                            wxProcess *process = (wxProcess *) NULL);
 102
 103 #define wxSIGTERM 1
 104
 105 WXDLLEXPORT int wxKill(long pid, int sig=wxSIGTERM);
 106
 107 // Execute a command in an interactive shell window
 108 // If no command then just the shell
 109 WXDLLEXPORT bool wxShell(const wxString& command = wxEmptyString);
 110
 111 // Sleep for nSecs seconds under UNIX, do nothing under Windows
 112 WXDLLEXPORT void wxSleep(int nSecs);
 113
 114 // Sleep for a given amount of milliseconds
 115 WXDLLEXPORT void wxUsleep(unsigned long milliseconds);
 116
 117 // Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
 118 WXDLLEXPORT long wxGetFreeMemory();
 119
 120 // Consume all events until no more left
 121 WXDLLEXPORT void wxFlushEvents();
 122
 123 /*
 124  * Network and username functions.
 125  *
 126  */
 127
 128 // Get eMail address
 129 WXDLLEXPORT bool wxGetEmailAddress(char *buf, int maxSize);
 130
 131 // Get hostname.
 132 WXDLLEXPORT bool wxGetHostName(char *buf, int maxSize);
 133 WXDLLEXPORT bool wxGetHostName(wxString& buf);
 134
 135 // Get user ID e.g. jacs
 136 WXDLLEXPORT bool wxGetUserId(char *buf, int maxSize);
 137 WXDLLEXPORT bool wxGetUserId(wxString& buf);
 138
 139 // Get user name e.g. Julian Smart
 140 WXDLLEXPORT bool wxGetUserName(char *buf, int maxSize);
 141 WXDLLEXPORT bool wxGetUserName(wxString& buf);
 142
 143 /*
 144  * Strip out any menu codes
 145  */
 146 WXDLLEXPORT char* wxStripMenuCodes(char *in, char *out = (char *) NULL);
 147 WXDLLEXPORT wxString wxStripMenuCodes(const wxString& str);
 148
 149 // Find the window/widget with the given title or label.
 150 // Pass a parent to begin the search from, or NULL to look through
 151 // all windows.
 152 WXDLLEXPORT wxWindow* wxFindWindowByLabel(const wxString& title, wxWindow *parent = (wxWindow *) NULL);
 153
 154 // Find window by name, and if that fails, by label.
 155 WXDLLEXPORT wxWindow* wxFindWindowByName(const wxString& name, wxWindow *parent = (wxWindow *) NULL);
 156
 157 // Returns menu item id or -1 if none.
 158 WXDLLEXPORT int wxFindMenuItemId(wxFrame *frame, const wxString& menuString, const wxString& itemString);
 159
 160 /*
 161 #if (!defined(__MINMAX_DEFINED) && !defined(max))
 162 #define max(a,b)            (((a) > (b)) ? (a) : (b))
 163 #define min(a,b)            (((a) < (b)) ? (a) : (b))
 164 #define __MINMAX_DEFINED 1
 165 #endif
 166 */
 167
 168 #define wxMax(a,b)            (((a) > (b)) ? (a) : (b))
 169 #define wxMin(a,b)            (((a) < (b)) ? (a) : (b))
 170
 171 // Yield to other apps/messages
 172 WXDLLEXPORT bool wxYield();
 173
 174 // Format a message on the standard error (UNIX) or the debugging
 175 // stream (Windows)
 176 WXDLLEXPORT void wxDebugMsg(const char *fmt ...) ;
 177
 178 // Sound the bell
 179 WXDLLEXPORT void wxBell(void) ;
 180
 181 // Get OS version
 182 WXDLLEXPORT int wxGetOsVersion(int *majorVsn= (int *) NULL,int *minorVsn= (int *) NULL) ;
 183
 184 // Set the cursor to the busy cursor for all windows
 185 class WXDLLEXPORT wxCursor;
 186 WXDLLEXPORT_DATA(extern wxCursor*) wxHOURGLASS_CURSOR;
 187 WXDLLEXPORT void wxBeginBusyCursor(wxCursor *cursor = wxHOURGLASS_CURSOR);
 188
 189 // Restore cursor to normal
 190 WXDLLEXPORT void wxEndBusyCursor();
 191
 192 // TRUE if we're between the above two calls
 193 WXDLLEXPORT bool wxIsBusy();
 194
 195 // Convenience class so we can just create a wxBusyCursor object on the stack
 196 class WXDLLEXPORT wxBusyCursor
 197 {
 198 public:
 199     wxBusyCursor(wxCursor* cursor = wxHOURGLASS_CURSOR)
 200         { wxBeginBusyCursor(cursor); }
 201    ~wxBusyCursor()
 202         { wxEndBusyCursor(); }
 203 };
 204
 205 // Error message functions used by wxWindows
 206
 207 // Non-fatal error (continues)
 208 WXDLLEXPORT_DATA(extern const char*) wxInternalErrorStr;
 209 WXDLLEXPORT void wxError(const wxString& msg, const wxString& title = wxInternalErrorStr);
 210
 211 // Fatal error (exits)
 212 WXDLLEXPORT_DATA(extern const char*) wxFatalErrorStr;
 213 WXDLLEXPORT void wxFatalError(const wxString& msg, const wxString& title = wxFatalErrorStr);
 214
 215 // Reading and writing resources (eg WIN.INI, .Xdefaults)
 216 #if wxUSE_RESOURCES
 217 WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, const wxString& value, const wxString& file = wxEmptyString);
 218 WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, float value, const wxString& file = wxEmptyString);
 219 WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, long value, const wxString& file = wxEmptyString);
 220 WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, int value, const wxString& file = wxEmptyString);
 221
 222 WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, char **value, const wxString& file = wxEmptyString);
 223 WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, float *value, const wxString& file = wxEmptyString);
 224 WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, long *value, const wxString& file = wxEmptyString);
 225 WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, int *value, const wxString& file = wxEmptyString);
 226 #endif // wxUSE_RESOURCES
 227
 228 // Get current Home dir and copy to dest (returns pstr->c_str())
 229 WXDLLEXPORT const char* wxGetHomeDir(wxString *pstr);
 230
 231 // Get the user's home dir (caller must copy--- volatile)
 232 // returns NULL is no HOME dir is known
 233 WXDLLEXPORT char* wxGetUserHome(const wxString& user = wxEmptyString);
 234
 235 // Check whether this window wants to process messages, e.g. Stop button
 236 // in long calculations.
 237 WXDLLEXPORT bool wxCheckForInterrupt(wxWindow *wnd);
 238
 239 void WXDLLEXPORT wxGetMousePosition( int* x, int* y );
 240
 241 // MSW only: get user-defined resource from the .res file.
 242 // Returns NULL or newly-allocated memory, so use delete[] to clean up.
 243 #ifdef __WXMSW__
 244 WXDLLEXPORT extern const char* wxUserResourceStr;
 245 WXDLLEXPORT char* wxLoadUserResource(const wxString& resourceName, const wxString& resourceType = wxUserResourceStr);
 246
 247 // Implemented in utils.cpp: VC++, Win95 only. Sets up a console for standard
 248 // input/output
 249 WXDLLEXPORT void wxRedirectIOToConsole();
 250
 251 #endif
 252
 253 // X only
 254 #ifdef __X__
 255 WXDisplay *wxGetDisplay();
 256 bool wxSetDisplay(const wxString& display_name);
 257 wxString wxGetDisplayName();
 258 #endif
 259
 260 #ifdef __X__
 261
 262 #include <X11/Xlib.h>
 263
 264 #define wxMAX_RGB           0xff
 265 #define wxMAX_SV            1000
 266 #define wxSIGN(x)           ((x < 0) ? -x : x)
 267 #define wxH_WEIGHT          4
 268 #define wxS_WEIGHT          1
 269 #define wxV_WEIGHT          2
 270
 271 typedef struct wx_hsv {
 272                         int h,s,v;
 273                       } wxHSV;
 274
 275 #define wxMax3(x,y,z) ((x > y) ? ((x > z) ? x : z) : ((y > z) ? y : z))
 276 #define wxMin3(x,y,z) ((x < y) ? ((x < z) ? x : z) : ((y < z) ? y : z))
 277
 278 #define wxMax2(x,y)   ((x > y) ? x : y)
 279 #define wxMin2(x,y)   ((x < y) ? x : y)
 280
 281 void wxHSVToXColor(wxHSV *hsv,XColor *xcolor);
 282 void wxXColorToHSV(wxHSV *hsv,XColor *xcolor);
 283 void wxAllocNearestColor(Display *display,Colormap colormap,XColor *xcolor);
 284 void wxAllocColor(Display *display,Colormap colormap,XColor *xcolor);
 285
 286 #endif //__X__
 287
 288 #endif
 289     // _WX_UTILSH__