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 "/usr/openwin/lib/app-defaults"
  43 #else
  44     #define DEFAULT_XRESOURCE_DIR "/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 char *GetResourcePath(char *buf, char *name, bool create)
  59 {
  60     if (create && FileExists(name))
  61     {
  62         strcpy(buf, name);
  63         return buf; // Exists so ...
  64     }
  65     if (*name == '/')
  66         strcpy(buf, name);
  67     else
  68     {
  69         // Put in standard place for resource files if not absolute
  70         strcpy(buf, DEFAULT_XRESOURCE_DIR);
  71         strcat(buf, "/");
  72         strcat(buf, FileNameFromPath(name));
  73     }
  74     if (create)
  75     {
  76         // Touch the file to create it
  77         FILE *fd = fopen(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 char *GetIniFile(char *dest, const char *filename)
  87 {
  88     char *home = (char *) NULL;
  89     if (filename && wxIsAbsolutePath(filename))
  90     {
  91       strcpy(dest, filename);
  92     }
  93     else
  94     {
  95       if ((home = wxGetUserHome(wxString())) != NULL)
  96       {
  97         strcpy(dest, home);
  98         if (dest[strlen(dest) - 1] != '/') strcat(dest, "/");
  99         if (filename == NULL)
 100         {
 101           if ((filename = getenv("XENVIRONMENT")) == NULL) filename = ".Xdefaults";
 102         }
 103         else
 104           if (*filename != '.') strcat(dest, ".");
 105         strcat(dest, filename);
 106       }
 107       else
 108       {
 109         dest[0] = '\0';
 110       }
 111     }
 112     return dest;
 113 }
 114
 115 static void wxXMergeDatabases()
 116 {
 117     XrmDatabase homeDB, serverDB, applicationDB;
 118     char filenamebuf[1024];
 119
 120     char *filename = &filenamebuf[0];
 121     char *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, (char *) NULL);
 142         serverDB = XrmGetFileDatabase(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 = getenv("XENVIRONMENT")) == NULL)
 151     {
 152         size_t len;
 153         environment = GetIniFile(filename, (const char *) NULL);
 154         len = strlen(environment);
 155 #if !defined(SVR4) || defined(__sgi)
 156         (void)gethostname(environment + len, 1024 - len);
 157 #else
 158         (void)sysinfo(SI_HOSTNAME, environment + len, 1024 - len);
 159 #endif
 160     }
 161     if ((homeDB = XrmGetFileDatabase(environment)))
 162         XrmMergeDatabases(homeDB, &wxResourceDatabase);
 163 }
 164
 165 //-----------------------------------------------------------------------------
 166 // called on application exit
 167 //-----------------------------------------------------------------------------
 168
 169 void wxFlushResources()
 170 {
 171     char nameBuffer[512];
 172
 173     wxNode *node = wxTheResourceCache->First();
 174     while (node) {
 175         wxString str = node->GetKeyString();
 176         char *file = WXSTRINGCAST str;
 177         // If file doesn't exist, create it first.
 178         (void)GetResourcePath(nameBuffer, file, TRUE);
 179
 180         XrmDatabase database = (XrmDatabase)node->Data();
 181         XrmPutFileDatabase(database, nameBuffer);
 182         XrmDestroyDatabase(database);
 183         wxNode *next = node->Next();
 184 //        delete node;
 185         node = next;
 186     }
 187 }
 188
 189 void wxDeleteResources(const char *file)
 190 {
 191     wxLogTrace(wxTraceResAlloc, "Delete: Number = %d", wxTheResourceCache->Number());
 192     char buffer[500];
 193     (void)GetIniFile(buffer, file);
 194
 195     wxNode *node = wxTheResourceCache->Find(buffer);
 196     if (node) {
 197         XrmDatabase database = (XrmDatabase)node->Data();
 198         XrmDestroyDatabase(database);
 199 //        delete node;
 200     }
 201 }
 202
 203 //-----------------------------------------------------------------------------
 204 // resource functions
 205 //-----------------------------------------------------------------------------
 206
 207 bool wxWriteResource(const wxString& section, const wxString& entry, const wxString& value, const wxString& file )
 208 {
 209     char buffer[500];
 210
 211     if (!entry) return FALSE;
 212
 213     (void)GetIniFile(buffer, file);
 214
 215     XrmDatabase database;
 216     wxNode *node = wxTheResourceCache->Find(buffer);
 217     if (node)
 218         database = (XrmDatabase)node->Data();
 219     else {
 220         database = XrmGetFileDatabase(buffer);
 221         wxLogTrace(wxTraceResAlloc, "Write: Number = %d", wxTheResourceCache->Number());
 222         wxTheResourceCache->Append(buffer, (wxObject *)database);
 223     }
 224     char resName[300];
 225     strcpy(resName, !section.IsNull() ? WXSTRINGCAST section : "wxWindows");
 226     strcat(resName, ".");
 227     strcat(resName, entry);
 228     XrmPutStringResource(&database, resName, value);
 229     return TRUE;
 230 };
 231
 232 bool wxWriteResource(const wxString& section, const wxString& entry, float value, const wxString& file )
 233 {
 234     char buf[50];
 235     sprintf(buf, "%.4f", value);
 236     return wxWriteResource(section, entry, buf, file);
 237 };
 238
 239 bool wxWriteResource(const wxString& section, const wxString& entry, long value, const wxString& file )
 240 {
 241     char buf[50];
 242     sprintf(buf, "%ld", value);
 243     return wxWriteResource(section, entry, buf, file);
 244 };
 245
 246 bool wxWriteResource(const wxString& section, const wxString& entry, int value, const wxString& file )
 247 {
 248     char buf[50];
 249     sprintf(buf, "%d", value);
 250     return wxWriteResource(section, entry, buf, file);
 251 };
 252
 253 bool wxGetResource(const wxString& section, const wxString& entry, char **value, const wxString& file )
 254 {
 255     if (!wxResourceDatabase)
 256         wxXMergeDatabases();
 257
 258     XrmDatabase database;
 259     if (!file.IsEmpty())
 260     {
 261         char buffer[500];
 262         // Is this right? Trying to get it to look in the user's
 263         // home directory instead of current directory -- JACS
 264         (void)GetIniFile(buffer, file);
 265
 266         wxNode *node = (wxNode*) NULL;  /* suppress egcs warning */
 267         node = wxTheResourceCache->Find(buffer);
 268         if (node)
 269         {
 270             database = (XrmDatabase)node->Data();
 271         }
 272         else
 273         {
 274             database = XrmGetFileDatabase(buffer);
 275             wxLogTrace(wxTraceResAlloc, "Get: Number = %d", wxTheResourceCache->Number());
 276             wxTheResourceCache->Append(buffer, (wxObject *)database);
 277         }
 278     } else
 279         database = wxResourceDatabase;
 280
 281     XrmValue xvalue;
 282     char *str_type[20];
 283     char buf[150];
 284     strcpy(buf, section);
 285     strcat(buf, ".");
 286     strcat(buf, entry);
 287
 288     bool success = XrmGetResource(database, buf, "*", str_type, &xvalue);
 289     // Try different combinations of upper/lower case, just in case...
 290     if (!success)
 291     {
 292         buf[0] = (isupper(buf[0]) ? tolower(buf[0]) : toupper(buf[0]));
 293         success = XrmGetResource(database, buf, "*", str_type,        &xvalue);
 294     }
 295     if (success)
 296     {
 297         if (*value)
 298             delete[] *value;
 299         *value = new char[xvalue.size + 1];
 300         strncpy(*value, xvalue.addr, (int)xvalue.size);
 301         return TRUE;
 302     }
 303     return FALSE;
 304 };
 305
 306 bool wxGetResource(const wxString& section, const wxString& entry, float *value, const wxString& file )
 307 {
 308     char *s = (char *) NULL;
 309     bool succ = wxGetResource(section, entry, &s, file);
 310     if (succ)
 311     {
 312         *value = (float)strtod(s, (char **) NULL);
 313         delete[]s;
 314         return TRUE;
 315     } else
 316         return FALSE;
 317 };
 318
 319 bool wxGetResource(const wxString& section, const wxString& entry, long *value, const wxString& file )
 320 {
 321     char *s = (char *) NULL;
 322     bool succ = wxGetResource(section, entry, &s, file);
 323     if (succ)
 324     {
 325         *value = strtol(s, (char **) NULL, 10);
 326         delete[]s;
 327         return TRUE;
 328     } else
 329         return FALSE;
 330 };
 331
 332 bool wxGetResource(const wxString& section, const wxString& entry, int *value, const wxString& file )
 333 {
 334     char *s = (char *) NULL;
 335     bool succ = wxGetResource(section, entry, &s, file);
 336     if (succ)
 337     {
 338         // Handle True, False here
 339         // True, Yes, Enables, Set or  Activated
 340         if (*s == 'T' || *s == 'Y' || *s == 'E' || *s == 'S' || *s == 'A')
 341             *value = TRUE;
 342         // False, No, Disabled, Reset, Cleared, Deactivated
 343         else if (*s == 'F' || *s == 'N' || *s == 'D' || *s == 'R' || *s == 'C')
 344             *value = FALSE;
 345         // Handle as Integer
 346         else
 347             *value = (int)strtol(s, (char **) NULL, 10);
 348         delete[]s;
 349         return TRUE;
 350     } else
 351         return FALSE;
 352 };
 353