(Text): Replace inforef to emacs-xtra by conditional xref's, depending on

[gnu-emacs] / src / w32reg.c

diff --git a/src/w32reg.c b/src/w32reg.c
index 9142fee5a40af42a6061aea6adf3ded90a3ba8b7..cd2a3bdf755555c888b041b00d0d2ffd73f566cf 100644 (file)
--- a/src/w32reg.c
+++ b/src/w32reg.c
@@ -1,5 +1,6 @@
 /* Emulate the X Resource Manager through the registry.
-   Copyright (C) 1990, 1993, 1994 Free Software Foundation.
+   Copyright (C) 1990, 1993, 1994, 2002, 2003, 2004,
+                 2005, 2006 Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
 
@@ -15,8 +16,8 @@ GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with GNU Emacs; see the file COPYING.  If not, write to
-the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.  */
 
 /* Written by Kevin Gallo */
 
@@ -28,10 +29,57 @@ Boston, MA 02111-1307, USA.  */
 #include <stdio.h>
 #include <string.h>
 
-#define REG_ROOT "Software\\GNU\\Emacs"
+#define REG_ROOT "SOFTWARE\\GNU\\Emacs"
 
-LPBYTE 
-win32_get_string_resource (name, class, dwexptype)
+/* Default system colors from the Display Control Panel settings.  */
+#define SYSTEM_DEFAULT_RESOURCES                          \
+  "emacs.foreground:SystemWindowText\0"                          \
+  "emacs.background:SystemWindow\0"                       \
+  "emacs.tooltip.attributeForeground:SystemInfoText\0"    \
+  "emacs.tooltip.attributeBackground:SystemInfoWindow\0"  \
+  "emacs.tool-bar.attributeForeground:SystemButtonText\0" \
+  "emacs.tool-bar.attributeBackground:SystemButtonFace\0" \
+  "emacs.menu.attributeForeground:SystemMenuText\0"       \
+  "emacs.menu.attributeBackground:SystemMenu\0"           \
+  "emacs.scroll-bar.attributeForeground:SystemScrollbar"
+
+/* Other possibilities for default faces:
+
+  region: Could use SystemHilight, but interferes with our ability to
+  see most syntax highlighting through the region face.
+
+  modeline: Could use System(In)ActiveTitle, gradient versions (not
+  supported on 95 and NT), but modeline is more like a status bar
+  really (which don't appear to be configurable in Windows).
+
+  highlight: Could use SystemHotTrackingColor, but it is not supported
+  on Windows 95 or NT, and other apps only seem to use it for menus
+  anyway.
+
+*/
+
+static char *
+w32_get_rdb_resource (rdb, resource)
+     char *rdb;
+     char *resource;
+{
+  char *value = rdb;
+  int len = strlen (resource);
+
+  while (*value)
+    {
+      /* Comparison is case-insensitive because registry searches are too.  */
+      if ((strnicmp (value, resource, len) == 0) && (value[len] == ':'))
+        return xstrdup (&value[len + 1]);
+
+      value = strchr (value, '\0') + 1;
+    }
+
+  return NULL;
+}
+
+LPBYTE
+w32_get_string_resource (name, class, dwexptype)
      char *name, *class;
      DWORD dwexptype;
 {
@@ -40,21 +88,24 @@ win32_get_string_resource (name, class, dwexptype)
   DWORD dwType;
   DWORD cbData;
   BOOL ok = FALSE;
-  
+  HKEY hive = HKEY_CURRENT_USER;
+
+ trykey:
+
   BLOCK_INPUT;
-  
-  /* Check both the current user and the local machine to see if we have any resources */
-  
-  if (RegOpenKeyEx (HKEY_CURRENT_USER, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS
-      || RegOpenKeyEx (HKEY_LOCAL_MACHINE, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS)
+
+  /* Check both the current user and the local machine to see if we have
+     any resources */
+
+  if (RegOpenKeyEx (hive, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS)
     {
       char *keyname;
-      
+
       if (RegQueryValueEx (hrootkey, name, NULL, &dwType, NULL, &cbData) == ERROR_SUCCESS
          && dwType == dwexptype)
        {
          keyname = name;
-       } 
+       }
       else if (RegQueryValueEx (hrootkey, class, NULL, &dwType, NULL, &cbData) == ERROR_SUCCESS
               && dwType == dwexptype)
        {
@@ -64,25 +115,33 @@ win32_get_string_resource (name, class, dwexptype)
        {
          keyname = NULL;
        }
-      
+
       ok = (keyname
            && (lpvalue = (LPBYTE) xmalloc (cbData)) != NULL
            && RegQueryValueEx (hrootkey, keyname, NULL, NULL, lpvalue, &cbData) == ERROR_SUCCESS);
-      
+
       RegCloseKey (hrootkey);
     }
-  
+
   UNBLOCK_INPUT;
-  
-  if (!ok) 
-    {
-      if (lpvalue) xfree (lpvalue);
-      return (NULL);
-    } 
-  else 
+
+  if (!ok)
     {
-      return (lpvalue);
+      if (lpvalue)
+       {
+         xfree (lpvalue);
+         lpvalue = NULL;
+       }
+      if (hive == HKEY_CURRENT_USER)
+       {
+         hive = HKEY_LOCAL_MACHINE;
+         goto trykey;
+       }
+
+      /* Check if there are Windows specific defaults defined.  */
+      return w32_get_rdb_resource (SYSTEM_DEFAULT_RESOURCES, name);
     }
+  return (lpvalue);
 }
 
 /* Retrieve the string resource specified by NAME with CLASS from
@@ -90,8 +149,21 @@ win32_get_string_resource (name, class, dwexptype)
 
 char *
 x_get_string_resource (rdb, name, class)
-     int rdb;
+     XrmDatabase rdb;
      char *name, *class;
 {
-  return (win32_get_string_resource (name, class, REG_SZ));
+  if (rdb)
+    {
+      char *resource;
+
+      if (resource = w32_get_rdb_resource (rdb, name))
+        return resource;
+      if (resource = w32_get_rdb_resource (rdb, class))
+        return resource;
+    }
+
+  return (w32_get_string_resource (name, class, REG_SZ));
 }
+
+/* arch-tag: 755fce25-42d7-4acb-874f-2fb42336823d
+   (do not change this comment) */