Add third_party libs

1 files changed, 1182 insertions, 0 deletions

diff --git a/third_party/windows/fltk-1.1.10/src/Fl_Preferences.cxx b/third_party/windows/fltk-1.1.10/src/Fl_Preferences.cxx
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index 0000000..9693720
--- /dev/null
+++ b/third_party/windows/fltk-1.1.10/src/Fl_Preferences.cxx
@@ -0,0 +1,1182 @@
+//

+// "$Id: Fl_Preferences.cxx 6015 2008-01-09 21:23:51Z matt $"

+//

+// Preferences methods for the Fast Light Tool Kit (FLTK).

+//

+// Copyright 2002-2005 by Matthias Melcher.

+//

+// This library is free software; you can redistribute it and/or

+// modify it under the terms of the GNU Library General Public

+// License as published by the Free Software Foundation; either

+// version 2 of the License, or (at your option) any later version.

+//

+// This library is distributed in the hope that it will be useful,

+// but WITHOUT ANY WARRANTY; without even the implied warranty of

+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

+// Library General Public License for more details.

+//

+// You should have received a copy of the GNU Library General Public

+// License along with this library; if not, write to the Free Software

+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307

+// USA.

+//

+// Please report all bugs and problems on the following page:

+//

+//     http://www.fltk.org/str.php

+//

+

+

+#include <FL/Fl.H>

+#include <FL/Fl_Preferences.H>

+#include <FL/filename.H>

+

+#include <stdio.h>

+#include <stdlib.h>

+#include <stdarg.h>

+#include "flstring.h"

+#include <sys/stat.h>

+

+#if defined(WIN32) && !defined(__CYGWIN__)

+#  include <direct.h>

+#  include <io.h>

+// Visual C++ 2005 incorrectly displays a warning about the use of POSIX APIs

+// on Windows, which is supposed to be POSIX compliant...

+#  define access _access

+#  define mkdir _mkdir

+#elif defined (__APPLE__)

+#  include <Carbon/Carbon.h>

+#  include <unistd.h>

+#else

+#  include <unistd.h>

+#endif

+

+

+char Fl_Preferences::nameBuffer[128];

+

+

+/**

+ * create the initial preferences base

+ * - root: machine or user preferences

+ * - vendor: unique identification of author or vendor of application

+ *     Must be a valid directory name.

+ * - application: vendor unique application name, i.e. "PreferencesTest"

+ *     multiple preferences files can be created per application.

+ *     Must be a valid file name.

+ * example: Fl_Preferences base( Fl_Preferences::USER, "fltk.org", "test01");

+ */

+Fl_Preferences::Fl_Preferences( Root root, const char *vendor, const char *application )

+{

+  node = new Node( "." );

+  rootNode = new RootNode( this, root, vendor, application );

+}

+

+

+/**

+ * create the initial preferences base

+ * - path: an application-supplied path

+ * example: Fl_Preferences base( "/usr/foo" );

+ */

+Fl_Preferences::Fl_Preferences( const char *path, const char *vendor, const char *application )

+{

+  node = new Node( "." );

+  rootNode = new RootNode( this, path, vendor, application );

+}

+

+

+/**

+ * create a Preferences node in relation to a parent node for reading and writing

+ * - parent: base name for group

+ * - group: group name (can contain '/' seperated group names)

+ * example: Fl_Preferences colors( base, "setup/colors" );

+ */

+Fl_Preferences::Fl_Preferences( Fl_Preferences &parent, const char *key )

+{

+  rootNode = parent.rootNode;

+  node = parent.node->addChild( key );

+}

+

+

+/**

+ * create a Preferences node in relation to a parent node for reading and writing

+ * - parent: base name for group

+ * - group: group name (can contain '/' seperated group names)

+ * example: Fl_Preferences colors( base, "setup/colors" );

+ */

+Fl_Preferences::Fl_Preferences( Fl_Preferences *parent, const char *key )

+{

+  rootNode = parent->rootNode;

+  node = parent->node->addChild( key );

+}

+

+

+/**

+ * destroy individual keys

+ * - destroying the base preferences will flush changes to the prefs file

+ * - after destroying the base, none of the depending preferences must be read or written

+ */

+Fl_Preferences::~Fl_Preferences()

+{

+  if (node && !node->parent()) delete rootNode;

+  // DO NOT delete nodes! The root node will do that after writing the preferences

+  // zero all pointer to avoid memory errors, event though

+  // Valgrind does not complain (Cygwind does though)

+  node = 0L;

+  rootNode = 0L;

+}

+

+

+/**

+ * return the number of groups that are contained within a group

+ * example: int n = base.groups();

+ */

+int Fl_Preferences::groups()

+{

+  return node->nChildren();

+}

+

+

+/**

+ * return the group name of the n'th group

+ * - there is no guaranteed order of group names

+ * - the index must be within the range given by groups()

+ * example: printf( "Group(%d)='%s'\n", ix, base.group(ix) );

+ */

+const char *Fl_Preferences::group( int ix )

+{

+  return node->child( ix );

+}

+

+

+/**

+ * return 1, if a group with this name exists

+ * example: if ( base.groupExists( "setup/colors" ) ) ...

+ */

+char Fl_Preferences::groupExists( const char *key )

+{

+  return node->search( key ) ? 1 : 0 ;

+}

+

+

+/**

+ * delete a group

+ * example: setup.deleteGroup( "colors/buttons" );

+ */

+char Fl_Preferences::deleteGroup( const char *key )

+{

+  Node *nd = node->search( key );

+  if ( nd ) return nd->remove();

+  return 0;

+}

+

+

+/**

+ * return the number of entries (name/value) pairs for a group

+ * example: int n = buttonColor.entries();

+ */

+int Fl_Preferences::entries()

+{

+  return node->nEntry;

+}

+

+

+/**

+ * return the name of an entry

+ * - there is no guaranteed order of entry names

+ * - the index must be within the range given by entries()

+ * example: printf( "Entry(%d)='%s'\n", ix, buttonColor.entry(ix) );

+ */

+const char *Fl_Preferences::entry( int ix )

+{

+  return node->entry[ix].name;

+}

+

+

+/**

+ * return 1, if an entry with this name exists

+ * example: if ( buttonColor.entryExists( "red" ) ) ...

+ */

+char Fl_Preferences::entryExists( const char *key )

+{

+  return node->getEntry( key )>=0 ? 1 : 0 ;

+}

+

+

+/**

+ * remove a single entry (name/value pair)

+ * example: buttonColor.deleteEntry( "red" );

+ */

+char Fl_Preferences::deleteEntry( const char *key )

+{

+  return node->deleteEntry( key );

+}

+

+

+/**

+ * read an entry from the group

+ */

+char Fl_Preferences::get( const char *key, int &value, int defaultValue )

+{

+  const char *v = node->get( key );

+  value = v ? atoi( v ) : defaultValue;

+  return ( v != 0 );

+}

+

+

+/**

+ * set an entry (name/value pair)

+ */

+char Fl_Preferences::set( const char *key, int value )

+{

+  sprintf( nameBuffer, "%d", value );

+  node->set( key, nameBuffer );

+  return 1;

+}

+

+

+/**

+ * read an entry from the group

+ */

+char Fl_Preferences::get( const char *key, float &value, float defaultValue )

+{

+  const char *v = node->get( key );

+  value = v ? (float)atof( v ) : defaultValue;

+  return ( v != 0 );

+}

+

+

+/**

+ * set an entry (name/value pair)

+ */

+char Fl_Preferences::set( const char *key, float value )

+{

+  sprintf( nameBuffer, "%g", value );

+  node->set( key, nameBuffer );

+  return 1;

+}

+

+

+/**

+ * set an entry (name/value pair)

+ */

+char Fl_Preferences::set( const char *key, float value, int precision )

+{

+  sprintf( nameBuffer, "%.*g", precision, value );

+  node->set( key, nameBuffer );

+  return 1;

+}

+

+

+/**

+ * read an entry from the group

+ */

+char Fl_Preferences::get( const char *key, double &value, double defaultValue )

+{

+  const char *v = node->get( key );

+  value = v ? atof( v ) : defaultValue;

+  return ( v != 0 );

+}

+

+

+/**

+ * set an entry (name/value pair)

+ */

+char Fl_Preferences::set( const char *key, double value )

+{

+  sprintf( nameBuffer, "%g", value );

+  node->set( key, nameBuffer );

+  return 1;

+}

+

+

+/**

+ * set an entry (name/value pair)

+ */

+char Fl_Preferences::set( const char *key, double value, int precision )

+{

+  sprintf( nameBuffer, "%.*g", precision, value );

+  node->set( key, nameBuffer );

+  return 1;

+}

+

+

+// remove control sequences from a string

+static char *decodeText( const char *src )

+{

+  int len = 0;

+  const char *s = src;

+  for ( ; *s; s++, len++ )

+  {

+    if ( *s == '\\' )

+      if ( isdigit( s[1] ) ) s+=3; else s+=1;

+  }

+  char *dst = (char*)malloc( len+1 ), *d = dst;

+  for ( s = src; *s; s++ )

+  {

+    char c = *s;

+    if ( c == '\\' )

+    {

+      if ( s[1] == '\\' ) { *d++ = c; s++; }

+      else if ( s[1] == 'n' ) { *d++ = '\n'; s++; }

+      else if ( s[1] == 'r' ) { *d++ = '\r'; s++; }

+      else if ( isdigit( s[1] ) ) { *d++ = ((s[1]-'0')<<6) + ((s[2]-'0')<<3) + (s[3]-'0'); s+=3; }

+      else s++; // error

+    }

+    else

+      *d++ = c;

+  }

+  *d = 0;

+  return dst;

+}

+

+

+/**

+ * read a text entry from the group

+ * the text will be moved into the given text buffer

+ * text will be clipped to the buffer size

+ */

+char Fl_Preferences::get( const char *key, char *text, const char *defaultValue, int maxSize )

+{

+  const char *v = node->get( key );

+  if ( v && strchr( v, '\\' ) ) {

+    char *w = decodeText( v );

+    strlcpy(text, w, maxSize);

+    free( w );

+    return 1;

+  }

+  if ( !v ) v = defaultValue;

+  if ( v ) strlcpy(text, v, maxSize);

+  else text = 0;

+  return ( v != defaultValue );

+}

+

+

+/**

+ * read a text entry from the group

+ * 'text' will be changed to point to a new text buffer

+ * the text buffer must be deleted with 'free(text)' by the user.

+ */

+char Fl_Preferences::get( const char *key, char *&text, const char *defaultValue )

+{

+  const char *v = node->get( key );

+  if ( v && strchr( v, '\\' ) )

+  {

+    text = decodeText( v );

+    return 1;

+  }    

+  if ( !v ) v = defaultValue;

+  if ( v )

+    text = strdup( v );

+  else

+    text = 0;

+  return ( v != defaultValue );

+}

+

+

+/**

+ * set an entry (name/value pair)

+ */

+char Fl_Preferences::set( const char *key, const char *text )

+{

+  const char *s = text ? text : "";

+  int n=0, ns=0;

+  for ( ; *s; s++ ) { n++; if ( *s<32 || *s=='\\' || *s==0x7f ) ns+=4; }

+  if ( ns )

+  {

+    char *buffer = (char*)malloc( n+ns+1 ), *d = buffer;

+    for ( s=text; *s; ) 

+    { 

+      char c = *s;

+      if ( c=='\\' ) { *d++ = '\\'; *d++ = '\\'; s++; }

+      else if ( c=='\n' ) { *d++ = '\\'; *d++ = 'n'; s++; }

+      else if ( c=='\r' ) { *d++ = '\\'; *d++ = 'r'; s++; }

+      else if ( c<32 || c==0x7f ) 

+	{ *d++ = '\\'; *d++ = '0'+((c>>6)&3); *d++ = '0'+((c>>3)&7); *d++ = '0'+(c&7);  s++; }

+      else *d++ = *s++;

+    }

+    *d = 0;

+    node->set( key, buffer );

+    free( buffer );

+  }

+  else

+    node->set( key, text );

+  return 1;

+}

+

+

+// convert a hex string to binary data

+static void *decodeHex( const char *src, int &size )

+{

+  size = strlen( src )/2;

+  unsigned char *data = (unsigned char*)malloc( size ), *d = data;

+  const char *s = src;

+  int i;

+

+  for ( i=size; i>0; i-- )

+  {

+    int v;

+    char x = tolower(*s++);

+    if ( x >= 'a' ) v = x-'a'+10; else v = x-'0';

+    v = v<<4;

+    x = tolower(*s++);

+    if ( x >= 'a' ) v += x-'a'+10; else v += x-'0';

+    *d++ = (uchar)v;

+  }

+

+  return (void*)data;

+}

+

+

+/**

+ * read a binary entry from the group

+ * the data will be moved into the given destination buffer

+ * data will be clipped to the buffer size

+ */

+char Fl_Preferences::get( const char *key, void *data, const void *defaultValue, int defaultSize, int maxSize )

+{

+  const char *v = node->get( key );

+  if ( v )

+  {

+    int dsize;

+    void *w = decodeHex( v, dsize );

+    memmove( data, w, dsize>maxSize?maxSize:dsize );

+    free( w );

+    return 1;

+  }    

+  if ( defaultValue )

+    memmove( data, defaultValue, defaultSize>maxSize?maxSize:defaultSize );

+  return 0;

+}

+

+

+/**

+ * read a binary entry from the group

+ * 'data' will be changed to point to a new data buffer

+ * the data buffer must be deleted with 'free(data)' by the user.

+ */

+char Fl_Preferences::get( const char *key, void *&data, const void *defaultValue, int defaultSize )

+{

+  const char *v = node->get( key );

+  if ( v )

+  {

+    int dsize;

+    data = decodeHex( v, dsize );

+    return 1;

+  }    

+  if ( defaultValue )

+  {

+    data = (void*)malloc( defaultSize );

+    memmove( data, defaultValue, defaultSize );

+  }

+  else

+    data = 0;

+  return 0;

+}

+

+

+/**

+ * set an entry (name/value pair)

+ */

+char Fl_Preferences::set( const char *key, const void *data, int dsize )

+{

+  char *buffer = (char*)malloc( dsize*2+1 ), *d = buffer;;

+  unsigned char *s = (unsigned char*)data;

+  for ( ; dsize>0; dsize-- )

+  {

+    static char lu[] = "0123456789abcdef";

+    unsigned char v = *s++;

+    *d++ = lu[v>>4];

+    *d++ = lu[v&0xf];

+  }

+  *d = 0;

+  node->set( key, buffer );

+  free( buffer );

+  return 1;

+}

+

+

+/**

+ * return the size of the value part of an entry

+ */

+int Fl_Preferences::size( const char *key )

+{

+  const char *v = node->get( key );

+  return v ? strlen( v ) : 0 ;

+}

+

+/**

+ * creates a path that is related to the preferences file

+ * and that is usable for application data beyond what is covered 

+ * by Fl_Preferences.

+ * - 'getUserdataPath' actually creates the directory

+ * - 'path' must be large enough to receive a complete file path

+ * example:

+ *   Fl_Preferences prefs( USER, "matthiasm.com", "test" );

+ *   char path[FL_PATH_MAX];

+ *   prefs.getUserdataPath( path );

+ * sample returns:

+ *   Win32: c:/Documents and Settings/matt/Application Data/matthiasm.com/test/

+ *   prefs: c:/Documents and Settings/matt/Application Data/matthiasm.com/test.prefs

+ */

+char Fl_Preferences::getUserdataPath( char *path, int pathlen )

+{

+  if ( rootNode )

+    return rootNode->getPath( path, pathlen );

+  return 0;

+}

+

+/**

+ * write all preferences to disk

+ * - this function works only with the base preference group

+ * - this function is rarely used as deleting the base preferences flushes automatically

+ */

+void Fl_Preferences::flush()

+{

+  if ( rootNode && node->dirty() )

+    rootNode->write();

+}

+

+//-----------------------------------------------------------------------------

+// helper class to create dynamic group and entry names on the fly

+//

+

+/**

+ * create a group name or entry name on the fly

+ * - this version creates a simple unsigned integer as an entry name

+ * example:

+ *   int n, i;

+ *   Fl_Preferences prev( appPrefs, "PreviousFiles" );

+ *   prev.get( "n", 0 );

+ *   for ( i=0; i<n; i++ )

+ *     prev.get( Fl_Preferences::Name(i), prevFile[i], "" );

+ */

+Fl_Preferences::Name::Name( unsigned int n )

+{

+  data_ = (char*)malloc(20);

+  sprintf(data_, "%u", n);

+}

+

+/**

+ * create a group name or entry name on the fly

+ * - this version creates entry names as in 'printf'

+ * example:

+ *   int n, i;

+ *   Fl_Preferences prefs( USER, "matthiasm.com", "test" );

+ *   prev.get( "nFiles", 0 );

+ *   for ( i=0; i<n; i++ )

+ *     prev.get( Fl_Preferences::Name( "File%d", i ), prevFile[i], "" );

+ */

+Fl_Preferences::Name::Name( const char *format, ... )

+{

+  data_ = (char*)malloc(1024);

+  va_list args;

+  va_start(args, format);

+  vsnprintf(data_, 1024, format, args);

+  va_end(args);

+}

+

+// delete the name

+Fl_Preferences::Name::~Name()

+{

+  if (data_) {

+    free(data_);

+    data_ = 0L;

+  }

+}

+

+//-----------------------------------------------------------------------------

+// internal methods, do not modify or use as they will change without notice

+//

+

+int Fl_Preferences::Node::lastEntrySet = -1;

+

+// recursively create a path in the file system

+static char makePath( const char *path ) {

+  if (access(path, 0)) {

+    const char *s = strrchr( path, '/' );

+    if ( !s ) return 0;

+    int len = s-path;

+    char *p = (char*)malloc( len+1 );

+    memcpy( p, path, len );

+    p[len] = 0;

+    makePath( p );

+    free( p );

+#if defined(WIN32) && !defined(__CYGWIN__)

+    return ( mkdir( path ) == 0 );

+#else

+    return ( mkdir( path, 0777 ) == 0 );

+#endif // WIN32 && !__CYGWIN__

+  }

+  return 1;

+}

+

+// strip the filename and create a path

+static void makePathForFile( const char *path )

+{

+  const char *s = strrchr( path, '/' );

+  if ( !s ) return;

+  int len = s-path;

+  char *p = (char*)malloc( len+1 );

+  memcpy( p, path, len );

+  p[len] = 0;

+  makePath( p );

+  free( p );

+}

+

+// create the root node

+// - construct the name of the file that will hold our preferences

+Fl_Preferences::RootNode::RootNode( Fl_Preferences *prefs, Root root, const char *vendor, const char *application )

+{

+  char filename[ FL_PATH_MAX ]; filename[0] = 0;

+#ifdef WIN32

+#  define FLPREFS_RESOURCE	"Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Shell Folders"

+  int appDataLen = strlen(vendor) + strlen(application) + 8;

+  DWORD type, nn;

+  LONG err;

+  HKEY key;

+

+  switch (root) {

+    case SYSTEM:

+      err = RegOpenKey( HKEY_LOCAL_MACHINE, FLPREFS_RESOURCE, &key );

+      if (err == ERROR_SUCCESS) {

+	nn = FL_PATH_MAX - appDataLen;

+	err = RegQueryValueEx( key, "Common AppData", 0L, &type, (BYTE*)filename, &nn );

+	if ( ( err != ERROR_SUCCESS ) && ( type == REG_SZ ) )

+	  filename[0] = 0;

+        RegCloseKey(key);

+      }

+      break;

+    case USER:

+      err = RegOpenKey( HKEY_CURRENT_USER, FLPREFS_RESOURCE, &key );

+      if (err == ERROR_SUCCESS) {

+	nn = FL_PATH_MAX - appDataLen;

+	err = RegQueryValueEx( key, "AppData", 0L, &type, (BYTE*)filename, &nn );

+	if ( ( err != ERROR_SUCCESS ) && ( type == REG_SZ ) )

+	{

+	  err = RegQueryValueEx( key, "Personal", 0L, &type, (BYTE*)filename, &nn );

+	  if ( ( err != ERROR_SUCCESS ) && ( type == REG_SZ ) )

+	    filename[0] = 0;

+	}

+        RegCloseKey(key);

+      }

+      break;

+  }

+

+  if (!filename[0]) {

+    strcpy(filename, "C:\\FLTK");

+  }

+

+  snprintf(filename + strlen(filename), sizeof(filename) - strlen(filename),

+           "/%s/%s.prefs", vendor, application);

+  for (char *s = filename; *s; s++) if (*s == '\\') *s = '/';

+#elif defined ( __APPLE__ )

+  FSSpec spec = { 0 };

+  FSRef ref;

+  OSErr err = fnfErr;

+  switch (root) {

+    case SYSTEM:

+      err = FindFolder( kLocalDomain, kPreferencesFolderType,

+			1, &spec.vRefNum, &spec.parID );

+      break;

+    case USER:

+      err = FindFolder( kUserDomain, kPreferencesFolderType, 

+			1, &spec.vRefNum, &spec.parID );

+      break;

+  }

+  FSpMakeFSRef( &spec, &ref );

+  FSRefMakePath( &ref, (UInt8*)filename, FL_PATH_MAX );

+  snprintf(filename + strlen(filename), sizeof(filename) - strlen(filename),

+           "/%s/%s.prefs", vendor, application );

+#else

+  const char *e;

+  switch (root) {

+    case USER:

+      if ((e = getenv("HOME")) != NULL) {

+	strlcpy(filename, e, sizeof(filename));

+

+	if (filename[strlen(filename)-1] != '/') {

+	  strlcat(filename, "/.fltk/", sizeof(filename));

+	} else {

+	  strlcat(filename, ".fltk/", sizeof(filename));

+	}

+	break;

+      }

+

+    case SYSTEM:

+      strcpy(filename, "/etc/fltk/");

+      break;

+  }

+

+  snprintf(filename + strlen(filename), sizeof(filename) - strlen(filename),

+           "%s/%s.prefs", vendor, application);

+#endif

+

+  prefs_       = prefs;

+  filename_    = strdup(filename);

+  vendor_      = strdup(vendor);

+  application_ = strdup(application);

+

+  read();

+}

+

+// create the root node

+// - construct the name of the file that will hold our preferences

+Fl_Preferences::RootNode::RootNode( Fl_Preferences *prefs, const char *path, const char *vendor, const char *application )

+{

+  if (!vendor)

+    vendor = "unknown";

+  if (!application) {

+    application = "unknown";

+    filename_ = strdup(path);

+  } else {

+    char filename[ FL_PATH_MAX ]; filename[0] = 0;

+    snprintf(filename, sizeof(filename), "%s/%s.prefs", path, application);

+    filename_  = strdup(filename);

+  }

+  prefs_       = prefs;

+  vendor_      = strdup(vendor);

+  application_ = strdup(application);

+

+  read();

+}

+

+// destroy the root node and all depending nodes

+Fl_Preferences::RootNode::~RootNode()

+{

+  if ( prefs_->node->dirty() )

+    write();

+  if ( filename_ ) { 

+    free( filename_ );

+    filename_ = 0L;

+  }

+  if ( vendor_ ) {

+    free( vendor_ );

+    vendor_ = 0L;

+  }

+  if ( application_ ) {

+    free( application_ );

+    application_ = 0L;

+  }

+  delete prefs_->node;

+  prefs_->node = 0L;

+}

+

+// read a preferences file and construct the group tree and with all entry leafs

+int Fl_Preferences::RootNode::read()

+{

+  char buf[1024];

+  FILE *f = fopen( filename_, "rb" );

+  if ( !f ) return 0;

+  fgets( buf, 1024, f );

+  fgets( buf, 1024, f );

+  fgets( buf, 1024, f );

+  Node *nd = prefs_->node;

+  for (;;)

+  {

+    if ( !fgets( buf, 1024, f ) ) break;	// EOF or Error

+    if ( buf[0]=='[' ) // read a new group

+    {

+      int end = strcspn( buf+1, "]\n\r" );

+      buf[ end+1 ] = 0;

+      nd = prefs_->node->find( buf+1 );

+    }

+    else if ( buf[0]=='+' ) // 

+    { // value of previous name/value pair spans multiple lines

+      int end = strcspn( buf+1, "\n\r" );

+      if ( end != 0 ) // if entry is not empty

+      {

+	buf[ end+1 ] = 0;

+	nd->add( buf+1 );

+      }

+    }

+    else // read a name/value pair

+    {

+      int end = strcspn( buf, "\n\r" );

+      if ( end != 0 ) // if entry is not empty

+      {

+	buf[ end ] = 0;

+	nd->set( buf );

+      }

+    }

+  }

+  fclose( f );

+  return 0;

+}

+

+// write the group tree and all entry leafs

+int Fl_Preferences::RootNode::write()

+{

+  makePathForFile(filename_);

+  FILE *f = fopen( filename_, "wb" );

+  if ( !f ) return 1;

+  fprintf( f, "; FLTK preferences file format 1.0\n" );

+  fprintf( f, "; vendor: %s\n", vendor_ );

+  fprintf( f, "; application: %s\n", application_ );

+  prefs_->node->write( f );

+  fclose( f );

+  return 0;

+}

+

+// get the path to the preferences directory

+char Fl_Preferences::RootNode::getPath( char *path, int pathlen )

+{

+  strlcpy( path, filename_, pathlen);

+

+  char *s;

+  for ( s = path; *s; s++ ) if ( *s == '\\' ) *s = '/';

+  s = strrchr( path, '.' );

+  if ( !s ) return 0;

+  *s = 0;

+  char ret = makePath( path );

+  strcpy( s, "/" );

+  return ret;

+}

+

+// create a node that represents a group

+// - path must be a single word, prferable alnum(), dot and underscore only. Space is ok.

+Fl_Preferences::Node::Node( const char *path )

+{

+  if ( path ) path_ = strdup( path ); else path_ = 0;

+  child_ = 0; next_ = 0; parent_ = 0;

+  entry = 0;

+  nEntry = NEntry = 0;

+  dirty_ = 0;

+}

+

+// delete this and all depending nodes

+Fl_Preferences::Node::~Node()

+{

+  Node *nx;

+  for ( Node *nd = child_; nd; nd = nx )

+  {

+    nx = nd->next_;

+    delete nd;

+  }

+  child_ = 0L;

+  if ( entry )

+  {

+    for ( int i = 0; i < nEntry; i++ )

+    {

+      if ( entry[i].name ) {

+	free( entry[i].name );

+	entry[i].name = 0L;

+      }

+      if ( entry[i].value ) {

+	free( entry[i].value );

+	entry[i].value = 0L;

+      }

+    }

+    free( entry );

+    entry = 0L;

+    nEntry = 0;

+  }

+  if ( path_ ) {

+    free( path_ );

+    path_ = 0L;

+  }

+  next_ = 0L;

+  parent_ = 0L;

+}

+

+// recursively check if any entry is dirty (was changed after loading a fresh prefs file)

+char Fl_Preferences::Node::dirty()

+{

+  if ( dirty_ ) return 1;

+  if ( next_ && next_->dirty() ) return 1;

+  if ( child_ && child_->dirty() ) return 1;

+  return 0;

+}

+

+// write this node (recursively from the last neighbor back to this)

+// write all entries

+// write all children

+int Fl_Preferences::Node::write( FILE *f )

+{

+  if ( next_ ) next_->write( f );

+  fprintf( f, "\n[%s]\n\n", path_ );

+  for ( int i = 0; i < nEntry; i++ )

+  {

+    char *src = entry[i].value;

+    if ( src )

+    { // hack it into smaller pieces if needed

+      fprintf( f, "%s:", entry[i].name );

+      int cnt;

+      for ( cnt = 0; cnt < 60; cnt++ )

+	if ( src[cnt]==0 ) break;

+      fwrite( src, cnt, 1, f );

+      fprintf( f, "\n" );

+      src += cnt;

+      for (;*src;)

+      {

+	for ( cnt = 0; cnt < 80; cnt++ )

+	  if ( src[cnt]==0 ) break;

+        fputc( '+', f );

+	fwrite( src, cnt, 1, f );

+        fputc( '\n', f );

+	src += cnt;

+      }

+    }

+    else

+      fprintf( f, "%s\n", entry[i].name );

+  }

+  if ( child_ ) child_->write( f );

+  dirty_ = 0;

+  return 0;

+}

+

+// set the parent node and create the full path

+void Fl_Preferences::Node::setParent( Node *pn )

+{

+  parent_ = pn;

+  next_ = pn->child_;

+  pn->child_ = this;

+  sprintf( nameBuffer, "%s/%s", pn->path_, path_ );

+  free( path_ );

+  path_ = strdup( nameBuffer );

+}

+

+// add a child to this node and set its path (try to find it first...)

+Fl_Preferences::Node *Fl_Preferences::Node::addChild( const char *path )

+{

+  sprintf( nameBuffer, "%s/%s", path_, path );

+  char *name = strdup( nameBuffer );

+  Node *nd = find( name );

+  free( name );

+  dirty_ = 1;

+  return nd;

+}

+

+// create and set, or change an entry within this node

+void Fl_Preferences::Node::set( const char *name, const char *value )

+{

+  for ( int i=0; i<nEntry; i++ )

+  {

+    if ( strcmp( name, entry[i].name ) == 0 )

+    {

+      if ( !value ) return; // annotation

+      if ( strcmp( value, entry[i].value ) != 0 )

+      {

+	if ( entry[i].value )

+	  free( entry[i].value );

+	entry[i].value = strdup( value );

+	dirty_ = 1;

+      }

+      lastEntrySet = i;

+      return;

+    }

+  }

+  if ( NEntry==nEntry )

+  {

+    NEntry = NEntry ? NEntry*2 : 10;

+    entry = (Entry*)realloc( entry, NEntry * sizeof(Entry) );

+  }

+  entry[ nEntry ].name = strdup( name );

+  entry[ nEntry ].value = value?strdup( value ):0;

+  lastEntrySet = nEntry;

+  nEntry++;

+  dirty_ = 1;

+}

+

+// create or set a value (or annotation) from a single line in the file buffer

+void Fl_Preferences::Node::set( const char *line )

+{

+  // hmm. If we assume that we always read this file in the beginning,

+  // we can handle the dirty flag 'quick and dirty'

+  char dirt = dirty_;

+  if ( line[0]==';' || line[0]==0 || line[0]=='#' )

+  {

+    set( line, 0 );

+  }

+  else

+  {

+    const char *c = strchr( line, ':' );

+    if ( c )

+    {

+      unsigned int len = c-line+1;

+      if ( len >= sizeof( nameBuffer ) )

+        len = sizeof( nameBuffer );

+      strlcpy( nameBuffer, line, len );

+      set( nameBuffer, c+1 );

+    }

+    else

+      set( line, "" );

+  }

+  dirty_ = dirt;

+}

+

+// add more data to an existing entry

+void Fl_Preferences::Node::add( const char *line )

+{

+  if ( lastEntrySet<0 || lastEntrySet>=nEntry ) return;

+  char *&dst = entry[ lastEntrySet ].value;

+  int a = strlen( dst );

+  int b = strlen( line );

+  dst = (char*)realloc( dst, a+b+1 );

+  memcpy( dst+a, line, b+1 );

+  dirty_ = 1;

+}

+

+// get the value for a name, returns 0 if no such name

+const char *Fl_Preferences::Node::get( const char *name )

+{

+  int i = getEntry( name );

+  return i>=0 ? entry[i].value : 0 ;

+}

+

+// find the index of an entry, returns -1 if no such entry

+int Fl_Preferences::Node::getEntry( const char *name )

+{

+  for ( int i=0; i<nEntry; i++ )

+  {

+    if ( strcmp( name, entry[i].name ) == 0 )

+    {

+      return i;

+    }

+  }

+  return -1;

+}

+

+// remove one entry form this group

+char Fl_Preferences::Node::deleteEntry( const char *name )

+{

+  int ix = getEntry( name );

+  if ( ix == -1 ) return 0;

+  memmove( entry+ix, entry+ix+1, (nEntry-ix-1) * sizeof(Entry) );

+  nEntry--;

+  dirty_ = 1;

+  return 1;

+}

+

+// find a group somewhere in the tree starting here

+// - this method will always return a valid node (except for memory allocation problems)

+// - if the node was not found, 'find' will create the required branch

+Fl_Preferences::Node *Fl_Preferences::Node::find( const char *path )

+{

+  int len = strlen( path_ );

+  if ( strncmp( path, path_, len ) == 0 )

+  {

+    if ( path[ len ] == 0 ) 

+      return this;

+    if ( path[ len ] == '/' )

+    {

+      Node *nd;

+      for ( nd = child_; nd; nd = nd->next_ )

+      {

+	Node *nn = nd->find( path );

+	if ( nn ) return nn;

+      }

+      const char *s = path+len+1;

+      const char *e = strchr( s, '/' );

+      if (e) strlcpy( nameBuffer, s, e-s+1 );

+      else strlcpy( nameBuffer, s, sizeof(nameBuffer));

+      nd = new Node( nameBuffer );

+      nd->setParent( this );

+      return nd->find( path );

+    }

+  }

+  return 0;

+}

+

+// find a group somewhere in the tree starting here

+// caller must not set 'offset' argument

+// - if the node does not exist, 'search' returns NULL

+// - if the pathname is "." (current node) return this node

+// - if the pathname is "./" (root node) return the topmost node

+// - if the pathname starts with "./", start the search at the root node instead

+Fl_Preferences::Node *Fl_Preferences::Node::search( const char *path, int offset )

+{

+

+  if ( offset == 0 )

+  {

+    if ( path[0] == '.' )

+    {

+      if ( path[1] == 0 )

+      {

+	return this; // user was searching for current node

+      }

+      else if ( path[1] == '/' )

+      {

+	Node *nn = this;

+	while ( nn->parent_ ) nn = nn->parent_;

+	if ( path[2]==0 )

+	{ // user is searching for root ( "./" )

+	  return nn;

+	}

+	return nn->search( path+2, 2 ); // do a relative search on the root node

+      }

+    }

+    offset = strlen( path_ ) + 1;

+  }

+  

+  int len = strlen( path_ );

+  if ( len < offset-1 ) return 0;

+  len -= offset;

+  if ( ( len <= 0 ) || ( strncmp( path, path_+offset, len ) == 0 ) )

+  {

+    if ( len > 0 && path[ len ] == 0 ) 

+      return this;

+    if ( len <= 0 || path[ len ] == '/' )

+    {

+      for ( Node *nd = child_; nd; nd = nd->next_ )

+      {

+	Node *nn = nd->search( path, offset );

+	if ( nn ) return nn;

+      }

+      return 0;

+    }

+  }

+  return 0;

+}

+

+// return the number of child nodes (groups)

+int Fl_Preferences::Node::nChildren()

+{

+  int cnt = 0;

+  for ( Node *nd = child_; nd; nd = nd->next_ )

+    cnt++;

+  return cnt;

+}

+

+// return the n'th child node

+const char *Fl_Preferences::Node::child( int ix )

+{

+  Node *nd;

+  for ( nd = child_; nd; nd = nd->next_ )

+  {

+    if ( !ix-- ) break;

+  }

+  if ( nd && nd->path_ )

+  {

+    char *r = strrchr( nd->path_, '/' );

+    return r ? r+1 : nd->path_ ;

+  }

+  return 0L ;

+}

+

+// remove myself from the list and delete me (and all children)

+char Fl_Preferences::Node::remove()

+{

+  Node *nd = 0, *np;

+  if ( parent_ )

+  {

+    nd = parent_->child_; np = 0L;

+    for ( ; nd; np = nd, nd = nd->next_ )

+    {

+      if ( nd == this )

+      {

+	if ( np ) 

+	  np->next_ = nd->next_; 

+	else 

+	  parent_->child_ = nd->next_;

+	break;

+      }

+    }

+    parent_->dirty_ = 1;

+  }

+  delete this;

+  return ( nd != 0 );

+}

+

+

+//

+// End of "$Id: Fl_Preferences.cxx 6015 2008-01-09 21:23:51Z matt $".

+//