| 1 | /* Emulate the X Resource Manager through the registry. |
| 2 | Copyright (C) 1990, 1993-1994, 2001-2014 Free Software Foundation, |
| 3 | Inc. |
| 4 | |
| 5 | This file is part of GNU Emacs. |
| 6 | |
| 7 | GNU Emacs is free software: you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation, either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | GNU Emacs is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | /* Written by Kevin Gallo */ |
| 21 | |
| 22 | #include <config.h> |
| 23 | #include "lisp.h" |
| 24 | #include "w32term.h" |
| 25 | #include "blockinput.h" |
| 26 | |
| 27 | #include <stdio.h> |
| 28 | |
| 29 | #define REG_ROOT "SOFTWARE\\GNU\\Emacs" |
| 30 | |
| 31 | /* Default system colors from the Display Control Panel settings. */ |
| 32 | #define SYSTEM_DEFAULT_RESOURCES \ |
| 33 | "emacs.foreground:SystemWindowText\0" \ |
| 34 | "emacs.background:SystemWindow\0" \ |
| 35 | "emacs.tooltip.attributeForeground:SystemInfoText\0" \ |
| 36 | "emacs.tooltip.attributeBackground:SystemInfoWindow\0" \ |
| 37 | "emacs.tool-bar.attributeForeground:SystemButtonText\0" \ |
| 38 | "emacs.tool-bar.attributeBackground:SystemButtonFace\0" \ |
| 39 | "emacs.menu.attributeForeground:SystemMenuText\0" \ |
| 40 | "emacs.menu.attributeBackground:SystemMenu\0" \ |
| 41 | "emacs.scroll-bar.attributeForeground:SystemScrollbar\0" |
| 42 | |
| 43 | /* Other possibilities for default faces: |
| 44 | |
| 45 | region: Could use SystemHilight, but interferes with our ability to |
| 46 | see most syntax highlighting through the region face. |
| 47 | |
| 48 | modeline: Could use System(In)ActiveTitle, gradient versions (not |
| 49 | supported on 95 and NT), but modeline is more like a status bar |
| 50 | really (which don't appear to be configurable in Windows). |
| 51 | |
| 52 | highlight: Could use SystemHotTrackingColor, but it is not supported |
| 53 | on Windows 95 or NT, and other apps only seem to use it for menus |
| 54 | anyway. |
| 55 | |
| 56 | */ |
| 57 | |
| 58 | static char * |
| 59 | w32_get_rdb_resource (char *rdb, const char *resource) |
| 60 | { |
| 61 | char *value = rdb; |
| 62 | int len = strlen (resource); |
| 63 | |
| 64 | while (*value) |
| 65 | { |
| 66 | /* Comparison is case-insensitive because registry searches are too. */ |
| 67 | if ((strnicmp (value, resource, len) == 0) && (value[len] == ':')) |
| 68 | return xstrdup (&value[len + 1]); |
| 69 | |
| 70 | value = strchr (value, '\0') + 1; |
| 71 | } |
| 72 | |
| 73 | return NULL; |
| 74 | } |
| 75 | |
| 76 | static LPBYTE |
| 77 | w32_get_string_resource (const char *name, const char *class, DWORD dwexptype) |
| 78 | { |
| 79 | LPBYTE lpvalue = NULL; |
| 80 | HKEY hrootkey = NULL; |
| 81 | DWORD dwType; |
| 82 | DWORD cbData; |
| 83 | BOOL ok = FALSE; |
| 84 | HKEY hive = HKEY_CURRENT_USER; |
| 85 | |
| 86 | trykey: |
| 87 | |
| 88 | block_input (); |
| 89 | |
| 90 | /* Check both the current user and the local machine to see if we have |
| 91 | any resources */ |
| 92 | |
| 93 | if (RegOpenKeyEx (hive, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS) |
| 94 | { |
| 95 | const char *keyname; |
| 96 | |
| 97 | if (RegQueryValueEx (hrootkey, name, NULL, &dwType, NULL, &cbData) == ERROR_SUCCESS |
| 98 | && dwType == dwexptype) |
| 99 | { |
| 100 | keyname = name; |
| 101 | } |
| 102 | else if (RegQueryValueEx (hrootkey, class, NULL, &dwType, NULL, &cbData) == ERROR_SUCCESS |
| 103 | && dwType == dwexptype) |
| 104 | { |
| 105 | keyname = class; |
| 106 | } |
| 107 | else |
| 108 | { |
| 109 | keyname = NULL; |
| 110 | } |
| 111 | |
| 112 | ok = (keyname |
| 113 | && (lpvalue = xmalloc (cbData)) != NULL |
| 114 | && RegQueryValueEx (hrootkey, keyname, NULL, NULL, lpvalue, &cbData) == ERROR_SUCCESS); |
| 115 | |
| 116 | RegCloseKey (hrootkey); |
| 117 | } |
| 118 | |
| 119 | unblock_input (); |
| 120 | |
| 121 | if (!ok) |
| 122 | { |
| 123 | if (lpvalue) |
| 124 | { |
| 125 | xfree (lpvalue); |
| 126 | lpvalue = NULL; |
| 127 | } |
| 128 | if (hive == HKEY_CURRENT_USER) |
| 129 | { |
| 130 | hive = HKEY_LOCAL_MACHINE; |
| 131 | goto trykey; |
| 132 | } |
| 133 | |
| 134 | /* Check if there are Windows specific defaults defined. */ |
| 135 | return w32_get_rdb_resource (SYSTEM_DEFAULT_RESOURCES, name); |
| 136 | } |
| 137 | return (lpvalue); |
| 138 | } |
| 139 | |
| 140 | /* Retrieve the string resource specified by NAME with CLASS from |
| 141 | database RDB. */ |
| 142 | |
| 143 | char * |
| 144 | x_get_string_resource (XrmDatabase rdb, const char *name, const char *class) |
| 145 | { |
| 146 | if (rdb) |
| 147 | { |
| 148 | char *resource; |
| 149 | |
| 150 | if ((resource = w32_get_rdb_resource (rdb, name))) |
| 151 | return resource; |
| 152 | if ((resource = w32_get_rdb_resource (rdb, class))) |
| 153 | return resource; |
| 154 | } |
| 155 | |
| 156 | if (inhibit_x_resources) |
| 157 | /* --quick was passed, so this is a no-op. */ |
| 158 | return NULL; |
| 159 | |
| 160 | return w32_get_string_resource (name, class, REG_SZ); |
| 161 | } |