diff options
Diffstat (limited to 'plug-ins/file-raw/file-raw-utils.c')
| -rw-r--r-- | plug-ins/file-raw/file-raw-utils.c | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/plug-ins/file-raw/file-raw-utils.c b/plug-ins/file-raw/file-raw-utils.c new file mode 100644 index 0000000..8847cd0 --- /dev/null +++ b/plug-ins/file-raw/file-raw-utils.c @@ -0,0 +1,153 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * file-raw-utils.h -- raw file format plug-in + * Copyright (C) 2016 Tobias Ellinghaus <me@houz.org> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#include <gdk/gdk.h> + +#ifdef GDK_WINDOWING_QUARTZ +#include <CoreServices/CoreServices.h> +#endif + +#ifdef GDK_WINDOWING_WIN32 +#include <windows.h> +#endif + +#include <libgimp/gimp.h> + +#include "file-raw-utils.h" + + +gchar * +file_raw_get_executable_path (const gchar *main_executable, + const gchar *suffix, + const gchar *env_variable, + const gchar *mac_bundle_id, + const gchar *win32_registry_key_base, + gboolean *search_path) +{ + /* + * First check for the environment variable. + * Next do platform specific checks (bundle lookup on Mac, registry stuff + * on Windows). + * Last resort is hoping for the executable to be in PATH. + */ + + /* + * Look for env variable. That can be set directly or via an environ file. + * We assume that just appending the suffix to that value will work. + * That means that on Windows there should be no ".exe"! + */ + const gchar *dt_env = env_variable ? g_getenv (env_variable) : NULL; + + if (dt_env) + return g_strconcat (dt_env, suffix, NULL); + +#if defined (GDK_WINDOWING_QUARTZ) + if (mac_bundle_id) + { + CFStringRef bundle_id; + + /* For macOS, attempt searching for an app bundle first. */ + bundle_id = CFStringCreateWithCString (NULL, mac_bundle_id, + kCFStringEncodingUTF8); + if (bundle_id) + { + OSStatus status; + CFURLRef bundle_url = NULL; + + status = LSFindApplicationForInfo (kLSUnknownCreator, + bundle_id, NULL, NULL, + &bundle_url); + if (status >= 0) + { + CFBundleRef bundle; + CFURLRef exec_url, absolute_url; + CFStringRef path; + gchar *ret; + CFIndex len; + + bundle = CFBundleCreate (kCFAllocatorDefault, bundle_url); + CFRelease (bundle_url); + + exec_url = CFBundleCopyExecutableURL (bundle); + absolute_url = CFURLCopyAbsoluteURL (exec_url); + path = CFURLCopyFileSystemPath (absolute_url, kCFURLPOSIXPathStyle); + + /* This gets us the length in UTF16 characters, we multiply by 2 + * to make sure we have a buffer big enough to fit the UTF8 string. + */ + len = CFStringGetLength (path); + ret = g_malloc0 (len * 2 * sizeof (gchar)); + if (! CFStringGetCString (path, ret, 2 * len * sizeof (gchar), + kCFStringEncodingUTF8)) + ret = NULL; + + CFRelease (path); + CFRelease (absolute_url); + CFRelease (exec_url); + CFRelease (bundle); + + if (ret) + return ret; + } + + CFRelease (bundle_id); + } + /* else, app bundle was not found, try path search as last resort. */ + } + +#elif defined (GDK_WINDOWING_WIN32) + if (win32_registry_key_base) + { + /* Look for the application in the Windows registry. */ + char *registry_key; + char path[MAX_PATH]; + DWORD buffer_size = sizeof (path); + long status; + + if (suffix) + registry_key = g_strconcat (win32_registry_key_base, suffix, ".exe", NULL); + else + registry_key = g_strconcat (win32_registry_key_base, ".exe", NULL); + + /* Check HKCU first in case there is a user specific installation. */ + status = RegGetValue (HKEY_CURRENT_USER, registry_key, "", RRF_RT_ANY, + NULL, (PVOID)&path, &buffer_size); + + if (status != ERROR_SUCCESS) + status = RegGetValue (HKEY_LOCAL_MACHINE, registry_key, "", RRF_RT_ANY, + NULL, (PVOID)&path, &buffer_size); + + g_free (registry_key); + + if (status == ERROR_SUCCESS) + return g_strdup (path); + } +#endif + + /* Finally, the last resort. */ + *search_path = TRUE; + + if (suffix) + return g_strconcat (main_executable, suffix, NULL); + + return g_strdup (main_executable); +} |