src/gtk/utilsres.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        utils.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
   7 // Licence:           wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10
  11 //#ifdef __GNUG__
  12 //#pragma implementation "utils.h"
  13 //#endif
  14
  15 #include "wx/utils.h"
  16 #include "wx/string.h"
  17 #include "wx/list.h"
  18
  19 #include <ctype.h>
  20 #include <string.h>
  21 #include <unistd.h>
  22 #ifdef __SVR4__
  23 #include <sys/systeminfo.h>
  24 #endif
  25
  26 #include "gdk/gdkx.h"        // GDK_DISPLAY
  27 #include "gdk/gdkprivate.h"  // gdk_progclass
  28
  29 #include <X11/Xlib.h>
  30 #include <X11/Xutil.h>
  31 #include <X11/Xresource.h>
  32
  33 #include "wx/log.h"
  34
  35 //-----------------------------------------------------------------------------
  36 // constants
  37 //-----------------------------------------------------------------------------
  38
  39 // Yuck this is really BOTH site and platform dependent
  40 // so we should use some other strategy!
  41 #ifdef __SUN__
  42     #define DEFAULT_XRESOURCE_DIR _T("/usr/openwin/lib/app-defaults")
  43 #else
  44     #define DEFAULT_XRESOURCE_DIR _T("/usr/lib/X11/app-defaults")
  45 #endif
  46
  47 //-----------------------------------------------------------------------------
  48 // glabal data (data.cpp)
  49 //-----------------------------------------------------------------------------
  50
  51 extern wxResourceCache *wxTheResourceCache;
  52 extern XrmDatabase wxResourceDatabase;
  53
  54 //-----------------------------------------------------------------------------
  55 // utility functions for get/write resources
  56 //-----------------------------------------------------------------------------
  57
  58 static wxChar *GetResourcePath(wxChar *buf, wxChar *name, bool create)
  59 {
  60     if (create && FileExists(name))
  61     {
  62         wxStrcpy(buf, name);
  63         return buf; // Exists so ...
  64     }
  65     if (*name == _T('/'))
  66         wxStrcpy(buf, name);
  67     else
  68     {
  69         // Put in standard place for resource files if not absolute
  70         wxStrcpy(buf, DEFAULT_XRESOURCE_DIR);
  71         wxStrcat(buf, _T("/"));
  72         wxStrcat(buf, FileNameFromPath(name));
  73     }
  74     if (create)
  75     {
  76         // Touch the file to create it
  77         FILE *fd = fopen(wxConv_file.cWX2MB(buf), "w");
  78         if (fd) fclose(fd);
  79     }
  80     return buf;
  81 }
  82
  83 // Read $HOME for what it says is home, if not
  84 // read $USER or $LOGNAME for user name else determine
  85 // the Real User, then determine the Real home dir.
  86 static wxChar *GetIniFile(wxChar *dest, const wxChar *filename)
  87 {
  88     wxChar *home = (wxChar *) NULL;
  89     if (filename && wxIsAbsolutePath(filename))
  90     {
  91       wxStrcpy(dest, filename);
  92     }
  93     else
  94     {
  95       if ((home = wxGetUserHome(wxString())) != NULL)
  96       {
  97         wxStrcpy(dest, home);
  98         if (dest[wxStrlen(dest) - 1] != _T('/')) wxStrcat(dest, _T("/"));
  99         if (filename == NULL)
 100         {
 101           if ((filename = wxGetenv(_T("XENVIRONMENT"))) == NULL) filename = _T(".Xdefaults");
 102         }
 103         else
 104           if (*filename != _T('.')) wxStrcat(dest, _T("."));
 105         wxStrcat(dest, filename);
 106       }
 107       else
 108       {
 109         dest[0] = _T('\0');
 110       }
 111     }
 112     return dest;
 113 }
 114
 115 static void wxXMergeDatabases()
 116 {
 117     XrmDatabase homeDB, serverDB, applicationDB;
 118     wxChar filenamebuf[1024];
 119
 120     wxChar *filename = &filenamebuf[0];
 121     wxChar *environment;
 122     char *classname = gdk_progclass;               // Robert Roebling ??
 123     char name[256];
 124     (void)strcpy(name, "/usr/lib/X11/app-defaults/");
 125     (void)strcat(name, classname ? classname : "wxWindows");
 126
 127     // Get application defaults file, if any
 128     if ((applicationDB = XrmGetFileDatabase(name)))
 129         (void)XrmMergeDatabases(applicationDB, &wxResourceDatabase);
 130
 131     // Merge server defaults, created by xrdb, loaded as a property of the root
 132     // window when the server initializes and loaded into the display
 133     // structure on XOpenDisplay;
 134     // if not defined, use .Xdefaults
 135     if (XResourceManagerString(GDK_DISPLAY()) != NULL)
 136     {
 137         serverDB = XrmGetStringDatabase(XResourceManagerString(GDK_DISPLAY()));
 138     }
 139     else
 140     {
 141         (void)GetIniFile(filename, (wxChar *) NULL);
 142         serverDB = XrmGetFileDatabase(wxConv_file.cWX2MB(filename));
 143     }
 144     if (serverDB)
 145         XrmMergeDatabases(serverDB, &wxResourceDatabase);
 146
 147     // Open XENVIRONMENT file, or if not defined, the .Xdefaults,
 148     // and merge into existing database
 149
 150     if ((environment = wxGetenv(_T("XENVIRONMENT"))) == NULL)
 151     {
 152         size_t len;
 153 #if wxUSE_UNICODE
 154         char hostbuf[1024];
 155 #endif
 156         environment = GetIniFile(filename, (const wxChar *) NULL);
 157         len = wxStrlen(environment);
 158 #if !defined(SVR4) || defined(__sgi)
 159 #if wxUSE_UNICODE
 160         (void)gethostname(hostbuf, 1024 - len);
 161 #else
 162         (void)gethostname(environment + len, 1024 - len);
 163 #endif
 164 #else
 165 #if wxUSE_UNICODE
 166         (void)sysinfo(SI_HOSTNAME, hostbuf, 1024 - len);
 167 #else
 168         (void)sysinfo(SI_HOSTNAME, environment + len, 1024 - len);
 169 #endif
 170 #endif
 171 #if wxUSE_UNICODE
 172         wxStrcat(environment, wxConv_libc.cMB2WX(hostbuf));
 173 #endif
 174     }
 175     if ((homeDB = XrmGetFileDatabase(wxConv_file.cWX2MB(environment))))
 176         XrmMergeDatabases(homeDB, &wxResourceDatabase);
 177 }
 178
 179 //-----------------------------------------------------------------------------
 180 // called on application exit
 181 //-----------------------------------------------------------------------------
 182
 183 void wxFlushResources()
 184 {
 185     wxChar nameBuffer[512];
 186
 187     wxNode *node = wxTheResourceCache->First();
 188     while (node) {
 189         wxString str = node->GetKeyString();
 190         wxChar *file = WXSTRINGCAST str;
 191         // If file doesn't exist, create it first.
 192         (void)GetResourcePath(nameBuffer, file, TRUE);
 193
 194         XrmDatabase database = (XrmDatabase)node->Data();
 195         XrmPutFileDatabase(database, wxConv_file.cWX2MB(nameBuffer));
 196         XrmDestroyDatabase(database);
 197         wxNode *next = node->Next();
 198 //        delete node;
 199         node = next;
 200     }
 201 }
 202
 203 void wxDeleteResources(const wxChar *file)
 204 {
 205     wxLogTrace(wxTraceResAlloc, _T("Delete: Number = %d"), wxTheResourceCache->Number());
 206     wxChar buffer[500];
 207     (void)GetIniFile(buffer, file);
 208
 209     wxNode *node = wxTheResourceCache->Find(buffer);
 210     if (node) {
 211         XrmDatabase database = (XrmDatabase)node->Data();
 212         XrmDestroyDatabase(database);
 213 //        delete node;
 214     }
 215 }
 216
 217 //-----------------------------------------------------------------------------
 218 // resource functions
 219 //-----------------------------------------------------------------------------
 220
 221 bool wxWriteResource(const wxString& section, const wxString& entry, const wxString& value, const wxString& file )
 222 {
 223     wxChar buffer[500];
 224
 225     if (!entry) return FALSE;
 226
 227     (void)GetIniFile(buffer, file);
 228
 229     XrmDatabase database;
 230     wxNode *node = wxTheResourceCache->Find(buffer);
 231     if (node)
 232         database = (XrmDatabase)node->Data();
 233     else {
 234         database = XrmGetFileDatabase(wxConv_file.cWX2MB(buffer));
 235         wxLogTrace(wxTraceResAlloc, _T("Write: Number = %d"), wxTheResourceCache->Number());
 236         wxTheResourceCache->Append(buffer, (wxObject *)database);
 237     }
 238     char resName[300];
 239     strcpy(resName, !section.IsNull() ? MBSTRINGCAST section.mb_str() : "wxWindows");
 240     strcat(resName, ".");
 241     strcat(resName, entry.mb_str());
 242     XrmPutStringResource(&database, resName, value.mb_str());
 243     return TRUE;
 244 };
 245
 246 bool wxWriteResource(const wxString& section, const wxString& entry, float value, const wxString& file )
 247 {
 248     char buf[50];
 249     sprintf(buf, "%.4f", value);
 250     return wxWriteResource(section, entry, buf, file);
 251 };
 252
 253 bool wxWriteResource(const wxString& section, const wxString& entry, long value, const wxString& file )
 254 {
 255     char buf[50];
 256     sprintf(buf, "%ld", value);
 257     return wxWriteResource(section, entry, buf, file);
 258 };
 259
 260 bool wxWriteResource(const wxString& section, const wxString& entry, int value, const wxString& file )
 261 {
 262     char buf[50];
 263     sprintf(buf, "%d", value);
 264     return wxWriteResource(section, entry, buf, file);
 265 };
 266
 267 bool wxGetResource(const wxString& section, const wxString& entry, char **value, const wxString& file )
 268 {
 269     if (!wxResourceDatabase)
 270         wxXMergeDatabases();
 271
 272     XrmDatabase database;
 273     if (!file.IsEmpty())
 274     {
 275         wxChar buffer[500];
 276         // Is this right? Trying to get it to look in the user's
 277         // home directory instead of current directory -- JACS
 278         (void)GetIniFile(buffer, file);
 279
 280         wxNode *node = (wxNode*) NULL;  /* suppress egcs warning */
 281         node = wxTheResourceCache->Find(buffer);
 282         if (node)
 283         {
 284             database = (XrmDatabase)node->Data();
 285         }
 286         else
 287         {
 288             database = XrmGetFileDatabase(wxConv_file.cWX2MB(buffer));
 289             wxLogTrace(wxTraceResAlloc, _T("Get: Number = %d"), wxTheResourceCache->Number());
 290             wxTheResourceCache->Append(buffer, (wxObject *)database);
 291         }
 292     } else
 293         database = wxResourceDatabase;
 294
 295     XrmValue xvalue;
 296     char *str_type[20];
 297     char buf[150];
 298     strcpy(buf, section.mb_str());
 299     strcat(buf, ".");
 300     strcat(buf, entry.mb_str());
 301
 302     bool success = XrmGetResource(database, buf, "*", str_type, &xvalue);
 303     // Try different combinations of upper/lower case, just in case...
 304     if (!success)
 305     {
 306         buf[0] = (isupper(buf[0]) ? tolower(buf[0]) : toupper(buf[0]));
 307         success = XrmGetResource(database, buf, "*", str_type,        &xvalue);
 308     }
 309     if (success)
 310     {
 311         if (*value)
 312             delete[] *value;
 313         *value = new char[xvalue.size + 1];
 314         strncpy(*value, xvalue.addr, (int)xvalue.size);
 315         return TRUE;
 316     }
 317     return FALSE;
 318 };
 319
 320 bool wxGetResource(const wxString& section, const wxString& entry, float *value, const wxString& file )
 321 {
 322     char *s = (char *) NULL;
 323     bool succ = wxGetResource(section, entry, &s, file);
 324     if (succ)
 325     {
 326         *value = (float)strtod(s, (char **) NULL);
 327         delete[]s;
 328         return TRUE;
 329     } else
 330         return FALSE;
 331 };
 332
 333 bool wxGetResource(const wxString& section, const wxString& entry, long *value, const wxString& file )
 334 {
 335     char *s = (char *) NULL;
 336     bool succ = wxGetResource(section, entry, &s, file);
 337     if (succ)
 338     {
 339         *value = strtol(s, (char **) NULL, 10);
 340         delete[]s;
 341         return TRUE;
 342     } else
 343         return FALSE;
 344 };
 345
 346 bool wxGetResource(const wxString& section, const wxString& entry, int *value, const wxString& file )
 347 {
 348     char *s = (char *) NULL;
 349     bool succ = wxGetResource(section, entry, &s, file);
 350     if (succ)
 351     {
 352         // Handle True, False here
 353         // True, Yes, Enables, Set or  Activated
 354         if (*s == 'T' || *s == 'Y' || *s == 'E' || *s == 'S' || *s == 'A')
 355             *value = TRUE;
 356         // False, No, Disabled, Reset, Cleared, Deactivated
 357         else if (*s == 'F' || *s == 'N' || *s == 'D' || *s == 'R' || *s == 'C')
 358             *value = FALSE;
 359         // Handle as Integer
 360         else
 361             *value = (int)strtol(s, (char **) NULL, 10);
 362         delete[]s;
 363         return TRUE;
 364     } else
 365         return FALSE;
 366 };
 367