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