Changes between Initial Version and Version 1 of FindDirectory

Timestamp:

12/04/09 07:06:26 (14 years ago)

Author:

mmadia

Comment:

copied content from SandBox

FindDirectory

@@ +1 @@
+= Finding a Directory's Path =
+When referencing paths, it is best to use Haiku's Find Directory functionality. The system defines numerous key directories in the [http://dev.haiku-os.org/browser/haiku/trunk/headers/os/storage/FindDirectory.h os/storage/FindDirectory.h] header. In addition to C/C++, a command line utility `finddir` can be used with the same variable names.
+
+== Terminal ==
+{{{
+export USER_SETTINGS_DIRECTORY=`/bin/finddir B_USER_SETTINGS_DIRECTORY`
+}}}
+To test this, try {{{ finddir B_USER_SETTINGS_DIRECTORY }}}
+
+== Shell Script ==
+{{{
+APPS_DIR=`finddir B_APPS_DIRECTORY`
+echo ${APPS_DIR}
+}}}
+
+== Makefile ==
+# Assuming the makefile sets 
+{{{
+APPS_DIR:=$(shell finddir B_APPS_DIRECTORY)
+}}}
+
+== C ==
+{{{
+#!rst
+diff -urN tuxpaint-0.9.21/src/fonts.c tuxpaint-0.9.21-haiku/src/fonts.c
+--- tuxpaint-0.9.21/src/fonts.c 2009-06-06 18:22:00.000000000 +0000
++++ tuxpaint-0.9.21-haiku/src/fonts.c   2009-10-07 07:39:18.000000000 +0000
+@@ -67,6 +67,11 @@
+ #include "win32_print.h"
+ #endif
+ 
++#ifdef __HAIKU__
++#include <FindDirectory.h>
++#include <fs_info.h>
++#endif
++
+ #ifdef __APPLE__
+ #include "wrapperdata.h"
+ extern WrapperData macosx;
+@@ -699,6 +704,14 @@
+     loadfonts(screen, "/boot/home/config/font/ttffonts");
+     loadfonts(screen, "/usr/share/fonts");
+     loadfonts(screen, "/usr/X11R6/lib/X11/fonts");
++#elif defined(__HAIKU__)
++       dev_t volume = dev_for_path("/boot");
++       char buffer[B_PATH_NAME_LENGTH+B_FILE_NAME_LENGTH];
++       status_t result;
++    result = find_directory(B_SYSTEM_FONTS_DIRECTORY, volume, false, buffer, sizeof(buffer));
++       loadfonts(screen, buffer);
++    result = find_directory(B_COMMON_FONTS_DIRECTORY, volume, false, buffer, sizeof(buffer));
++       loadfonts(screen, buffer);
+ #elif defined(__APPLE__)
+     loadfonts(screen, "/System/Library/Fonts");
+     loadfonts(screen, "/Library/Fonts");
+}}}
+
+== C++ ==
+{{{
+#!cpp
+// Note: This is untested!
+
+#ifdef __HAIKU__
+#include <FindDirectory.h>
+#include <fs_info.h>
+#endif
+        
+// ...
+
+BPath dir;
+result = find_directory(B_SYSTEM_FONTS_DIRECTORY, &dir);
+loadfonts(screen, dir.Path());
+result = find_directory(B_COMMON_FONTS_DIRECTORY, &dir);
+loadfonts(screen, dir.Path());
+}}}
+
+== Python == 
+{{{
+#!python
+#!/bin/env python
+
+import commands
+
+# Creating a utility function
+def FindDirectory(aDir):
+        result = commands.getoutput('finddir %s' % aDir)
+        return result
+        
+
+if __name__ == "__main__":
+        # Using the utility function ...
+        B_APPS_DIRECTORY = FindDirectory('B_APPS_DIRECTORY')
+        print 'Using utility function:'
+        print B_APPS_DIRECTORY
+
+        # Set a baloney value, to display functionality
+        B_APPS_DIRECTORY='Some Text to display the value being set properly'
+        print 'After setting a baloney value:'
+        print B_APPS_DIRECTORY
+ 
+        # As a one liner ...
+        B_APPS_DIRECTORY = commands.getoutput('finddir B_APPS_DIRECTORY')
+        print 'Using a one liner:'
+        print B_APPS_DIRECTORY
+}}}