X-Git-Url: https://git.street.me.uk/andy/viking.git/blobdiff_plain/efe9a9c37749837735f5735eec3fc2585359f787..e29aad19b9c3a0e0686354e3896eda9254d0e06c:/src/babel.c?ds=inline diff --git a/src/babel.c b/src/babel.c index 8b3fd833..3f13ab37 100644 --- a/src/babel.c +++ b/src/babel.c @@ -3,6 +3,8 @@ * * Copyright (C) 2003-2005, Evan Battaglia * Copyright (C) 2006, Quy Tonthat + * Copyright (C) 2013, Guilhem Bonnefille + * Copyright (C) 2015, Rob Norris * * 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 @@ -24,9 +26,8 @@ * SECTION:babel * @short_description: running external programs and redirecting to TRWLayers. * - * GPSBabel may not be necessary for everything -- for instance, - * use a_babel_convert_from_shellcommand() with input_file_type == %NULL - * for an external program that outputs GPX. + * GPSBabel may not be necessary for everything, + * one can use shell_command option but this will be OS platform specific */ #ifdef HAVE_CONFIG_H @@ -36,16 +37,15 @@ #include "viking.h" #include "gpx.h" #include "babel.h" +#include "preferences.h" #include -#ifdef HAVE_SYS_WAIT_H -#include -#endif #ifdef HAVE_UNISTD_H #include #endif #include #include #include +#include /* TODO in the future we could have support for other shells (change command strings), or not use a shell at all */ #define BASH_LOCATION "/bin/bash" @@ -70,12 +70,63 @@ GList *a_babel_file_list; */ GList *a_babel_device_list; +/** + * Run a function on all file formats supporting a given mode. + */ +void a_babel_foreach_file_with_mode (BabelMode mode, GFunc func, gpointer user_data) +{ + GList *current; + for ( current = g_list_first (a_babel_file_list) ; + current != NULL ; + current = g_list_next (current) ) + { + BabelFile *currentFile = current->data; + /* Check compatibility of modes */ + gboolean compat = TRUE; + if (mode.waypointsRead && ! currentFile->mode.waypointsRead) compat = FALSE; + if (mode.waypointsWrite && ! currentFile->mode.waypointsWrite) compat = FALSE; + if (mode.tracksRead && ! currentFile->mode.tracksRead) compat = FALSE; + if (mode.tracksWrite && ! currentFile->mode.tracksWrite) compat = FALSE; + if (mode.routesRead && ! currentFile->mode.routesRead) compat = FALSE; + if (mode.routesWrite && ! currentFile->mode.routesWrite) compat = FALSE; + /* Do call */ + if (compat) + func (currentFile, user_data); + } +} + +/** + * a_babel_foreach_file_read_any: + * @func: The function to be called on any file format with a read method + * @user_data: Data passed into the function + * + * Run a function on all file formats with any kind of read method + * (which is almost all but not quite - e.g. with GPSBabel v1.4.4 - PalmDoc is write only waypoints) + */ +void a_babel_foreach_file_read_any (GFunc func, gpointer user_data) +{ + GList *current; + for ( current = g_list_first (a_babel_file_list) ; + current != NULL ; + current = g_list_next (current) ) + { + BabelFile *currentFile = current->data; + // Call function when any read mode found + if ( currentFile->mode.waypointsRead || + currentFile->mode.tracksRead || + currentFile->mode.routesRead) + func (currentFile, user_data); + } +} + /** * a_babel_convert: * @vt: The TRW layer to modify. All data will be deleted, and replaced by what gpsbabel outputs. * @babelargs: A string containing gpsbabel command line filter options. No file types or names should * be specified. * @cb: A callback function. + * @user_data: passed along to cb + * @not_used: Must use NULL * * This function modifies data in a trw layer using gpsbabel filters. This routine is synchronous; * that is, it will block the calling program until the conversion is done. To avoid blocking, call @@ -83,20 +134,15 @@ GList *a_babel_device_list; * * Returns: %TRUE on success */ -gboolean a_babel_convert( VikTrwLayer *vt, const char *babelargs, BabelStatusFunc cb, gpointer user_data ) +gboolean a_babel_convert( VikTrwLayer *vt, const char *babelargs, BabelStatusFunc cb, gpointer user_data, gpointer not_used ) { - int fd_src; - FILE *f; - gchar *name_src = NULL; gboolean ret = FALSE; gchar *bargs = g_strconcat(babelargs, " -i gpx", NULL); + gchar *name_src = a_gpx_write_tmp_file ( vt, NULL ); - if ((fd_src = g_file_open_tmp("tmp-viking.XXXXXX", &name_src, NULL)) >= 0) { - f = fdopen(fd_src, "w"); - a_gpx_write_file(vt, f); - fclose(f); - f = NULL; - ret = a_babel_convert_from ( vt, bargs, name_src, cb, user_data ); + if ( name_src ) { + ProcessOptions po = { bargs, name_src, NULL, NULL, NULL }; + ret = a_babel_convert_from ( vt, &po, cb, user_data, not_used ); g_remove(name_src); g_free(name_src); } @@ -105,68 +151,27 @@ gboolean a_babel_convert( VikTrwLayer *vt, const char *babelargs, BabelStatusFun return ret; } -#ifdef WINDOWS -static gboolean babel_general_convert( BabelStatusFunc cb, gchar **args, gpointer user_data ) +/** + * Perform any cleanup actions once GPSBabel has completed running + */ +static void babel_watch ( GPid pid, + gint status, + gpointer user_data ) { - gboolean ret; - FILE *f; - gchar *cmd; - gchar **args2; - - STARTUPINFO si; - PROCESS_INFORMATION pi; - - ZeroMemory( &si, sizeof(si) ); - ZeroMemory( &pi, sizeof(pi) ); - si.cb = sizeof(si); - si.dwFlags = STARTF_USESHOWWINDOW; - si.wShowWindow = SW_HIDE; - - cmd = g_strjoinv( " ", args); - args2 = g_strsplit(cmd, "\\", 0); - g_free(cmd); - cmd = g_strjoinv( "\\\\", args2); - g_free(args2); - args2 = g_strsplit(cmd, "/", 0); - g_free(cmd); - cmd = g_strjoinv( "\\\\", args2); - - if( !CreateProcess( - NULL, // No module name (use command line). - (LPTSTR)cmd, // Command line. - NULL, // Process handle not inheritable. - NULL, // Thread handle not inheritable. - FALSE, // Set handle inheritance to FALSE. - 0, // No creation flags. - NULL, // Use parent's environment block. - NULL, // Use parent's starting directory. - &si, // Pointer to STARTUPINFO structure. - &pi ) // Pointer to PROCESS_INFORMATION structure. - ){ - g_error ( "CreateProcess failed" ); - ret = FALSE; - } - else { - WaitForSingleObject(pi.hProcess, INFINITE); - WaitForSingleObject(pi.hThread, INFINITE); - - CloseHandle(pi.hThread); - CloseHandle(pi.hProcess); - - if ( cb ) - cb(BABEL_DONE, NULL, user_data); - - ret = TRUE; - } - - g_strfreev( args2 ); - g_free( cmd ); - - return ret; + g_spawn_close_pid ( pid ); } -/* Windows */ -#else -/* Posix */ + +/** + * babel_general_convert: + * @args: The command line arguments passed to GPSBabel + * @cb: callback that is run for each line of GPSBabel output and at completion of the run + * callback may be NULL + * @user_data: passed along to cb + * + * The function to actually invoke the GPSBabel external command + * + * Returns: %TRUE on successful invocation of GPSBabel command + */ static gboolean babel_general_convert( BabelStatusFunc cb, gchar **args, gpointer user_data ) { gboolean ret = FALSE; @@ -174,8 +179,13 @@ static gboolean babel_general_convert( BabelStatusFunc cb, gchar **args, gpointe GError *error = NULL; gint babel_stdout; - if (!g_spawn_async_with_pipes (NULL, args, NULL, 0, NULL, NULL, &pid, NULL, &babel_stdout, NULL, &error)) { - g_error("Async command failed: %s", error->message); + if ( vik_debug ) { + for ( guint i=0; args[i]; i++ ) + g_debug ("%s: %s", __FUNCTION__, args[i] ); + } + + if (!g_spawn_async_with_pipes (NULL, args, NULL, G_SPAWN_DO_NOT_REAP_CHILD, NULL, NULL, &pid, NULL, &babel_stdout, NULL, &error)) { + g_warning ("Async command failed: %s", error->message); g_error_free(error); ret = FALSE; } else { @@ -193,15 +203,14 @@ static gboolean babel_general_convert( BabelStatusFunc cb, gchar **args, gpointe cb(BABEL_DONE, NULL, user_data); fclose(diag); diag = NULL; - waitpid(pid, NULL, 0); - g_spawn_close_pid(pid); + + g_child_watch_add ( pid, (GChildWatchFunc) babel_watch, NULL ); ret = TRUE; } return ret; } -#endif /* Posix */ /** * babel_general_convert_from: @@ -244,11 +253,15 @@ static gboolean babel_general_convert_from( VikTrwLayer *vt, BabelStatusFunc cb, } /** - * a_babel_convert_from: - * @vt: The TRW layer to place data into. Duplicate items will be overwritten. - * @babelargs: A string containing gpsbabel command line options. In addition to any filters, this string - * must include the input file type (-i) option. - * @cb: Optional callback function. Same usage as in a_babel_convert(). + * a_babel_convert_from_filter: + * @vt: The TRW layer to place data into. Duplicate items will be overwritten. + * @babelargs: A string containing gpsbabel command line options. This string + * must include the input file type (-i) option. + * @from the file name to convert from + * @babelfilters: A string containing gpsbabel filter command line options + * @cb: Optional callback function. Same usage as in a_babel_convert(). + * @user_data: passed along to cb + * @not_used: Must use NULL * * Loads data into a trw layer from a file, using gpsbabel. This routine is synchronous; * that is, it will block the calling program until the conversion is done. To avoid blocking, call @@ -256,7 +269,7 @@ static gboolean babel_general_convert_from( VikTrwLayer *vt, BabelStatusFunc cb, * * Returns: %TRUE on success */ -gboolean a_babel_convert_from( VikTrwLayer *vt, const char *babelargs, const char *from, BabelStatusFunc cb, gpointer user_data ) +gboolean a_babel_convert_from_filter( VikTrwLayer *vt, const char *babelargs, const char *from, const char *babelfilters, BabelStatusFunc cb, gpointer user_data, gpointer not_used ) { int i,j; int fd_dst; @@ -265,10 +278,12 @@ gboolean a_babel_convert_from( VikTrwLayer *vt, const char *babelargs, const cha gchar *args[64]; if ((fd_dst = g_file_open_tmp("tmp-viking.XXXXXX", &name_dst, NULL)) >= 0) { + g_debug ("%s: temporary file: %s", __FUNCTION__, name_dst); close(fd_dst); if (gpsbabel_loc ) { gchar **sub_args = g_strsplit(babelargs, " ", 0); + gchar **sub_filters = NULL; i = 0; if (unbuffer_loc) @@ -279,10 +294,18 @@ gboolean a_babel_convert_from( VikTrwLayer *vt, const char *babelargs, const cha if (sub_args[j][0] != '\0') args[i++] = sub_args[j]; } - args[i++] = "-o"; - args[i++] = "gpx"; args[i++] = "-f"; args[i++] = (char *)from; + if (babelfilters) { + sub_filters = g_strsplit(babelfilters, " ", 0); + for (j = 0; sub_filters[j]; j++) { + /* some version of gpsbabel can not take extra blank arg */ + if (sub_filters[j][0] != '\0') + args[i++] = sub_filters[j]; + } + } + args[i++] = "-o"; + args[i++] = "gpx"; args[i++] = "-F"; args[i++] = name_dst; args[i] = NULL; @@ -290,8 +313,10 @@ gboolean a_babel_convert_from( VikTrwLayer *vt, const char *babelargs, const cha ret = babel_general_convert_from ( vt, cb, args, name_dst, user_data ); g_strfreev(sub_args); + if (sub_filters) + g_strfreev(sub_filters); } else - g_error("gpsbabel not found in PATH"); + g_critical("gpsbabel not found in PATH"); g_remove(name_dst); g_free(name_dst); } @@ -301,6 +326,12 @@ gboolean a_babel_convert_from( VikTrwLayer *vt, const char *babelargs, const cha /** * a_babel_convert_from_shellcommand: + * @vt: The #VikTrwLayer where to insert the collected data + * @input_cmd: the command to run + * @input_file_type: + * @cb: Optional callback function. Same usage as in a_babel_convert(). + * @user_data: passed along to cb + * @not_used: Must use NULL * * Runs the input command in a shell (bash) and optionally uses GPSBabel to convert from input_file_type. * If input_file_type is %NULL, doesn't use GPSBabel. Input must be GPX (or Geocaching *.loc) @@ -308,7 +339,7 @@ gboolean a_babel_convert_from( VikTrwLayer *vt, const char *babelargs, const cha * Uses babel_general_convert_from() to actually run the command. This function * prepares the command and temporary file, and sets up the arguments for bash. */ -gboolean a_babel_convert_from_shellcommand ( VikTrwLayer *vt, const char *input_cmd, const char *input_file_type, BabelStatusFunc cb, gpointer user_data ) +gboolean a_babel_convert_from_shellcommand ( VikTrwLayer *vt, const char *input_cmd, const char *input_file_type, BabelStatusFunc cb, gpointer user_data, gpointer not_used ) { int fd_dst; gchar *name_dst = NULL; @@ -316,6 +347,7 @@ gboolean a_babel_convert_from_shellcommand ( VikTrwLayer *vt, const char *input_ gchar **args; if ((fd_dst = g_file_open_tmp("tmp-viking.XXXXXX", &name_dst, NULL)) >= 0) { + g_debug ("%s: temporary file: %s", __FUNCTION__, name_dst); gchar *shell_command; if ( input_file_type ) shell_command = g_strdup_printf("%s | %s -i %s -f - -o gpx -F %s", @@ -342,9 +374,28 @@ gboolean a_babel_convert_from_shellcommand ( VikTrwLayer *vt, const char *input_ return ret; } -gboolean a_babel_convert_from_url ( VikTrwLayer *vt, const char *url, const char *input_type, BabelStatusFunc cb, gpointer user_data ) +/** + * a_babel_convert_from_url_filter: + * @vt: The #VikTrwLayer where to insert the collected data + * @url: the URL to fetch + * @input_type: If input_type is %NULL, input must be GPX. + * @babelfilters: The filter arguments to pass to gpsbabel + * @cb: Optional callback function. Same usage as in a_babel_convert(). + * @user_data: Passed along to cb + * @options: Download options. If %NULL then default download options will be used. + * + * Download the file pointed by the URL and optionally uses GPSBabel to convert from input_type. + * If input_type and babelfilters are %NULL, gpsbabel is not used. + * + * Returns: %TRUE on successful invocation of GPSBabel or read of the GPX + * + */ +gboolean a_babel_convert_from_url_filter ( VikTrwLayer *vt, const char *url, const char *input_type, const char *babelfilters, BabelStatusFunc cb, gpointer user_data, DownloadMapOptions *options ) { - static DownloadMapOptions options = { FALSE, FALSE, NULL, 0, a_check_kml_file}; + // If no download options specified, use defaults: + DownloadMapOptions myoptions = { FALSE, FALSE, NULL, 2, NULL, NULL, NULL }; + if ( options ) + myoptions = *options; gint fd_src; int fetch_ret; gboolean ret = FALSE; @@ -354,16 +405,27 @@ gboolean a_babel_convert_from_url ( VikTrwLayer *vt, const char *url, const char g_debug("%s: input_type=%s url=%s", __FUNCTION__, input_type, url); if ((fd_src = g_file_open_tmp("tmp-viking.XXXXXX", &name_src, NULL)) >= 0) { + g_debug ("%s: temporary file: %s", __FUNCTION__, name_src); close(fd_src); g_remove(name_src); - babelargs = g_strdup_printf(" -i %s", input_type); - - fetch_ret = a_http_download_get_url(url, "", name_src, &options, NULL); - if (fetch_ret == 0) - ret = a_babel_convert_from( vt, babelargs, name_src, NULL, NULL); - - g_remove(name_src); + fetch_ret = a_http_download_get_url(url, "", name_src, &myoptions, NULL); + if (fetch_ret == DOWNLOAD_SUCCESS) { + if (input_type != NULL || babelfilters != NULL) { + babelargs = (input_type) ? g_strdup_printf(" -i %s", input_type) : g_strdup(""); + ret = a_babel_convert_from_filter( vt, babelargs, name_src, babelfilters, NULL, NULL, NULL ); + } else { + /* Process directly the retrieved file */ + g_debug("%s: directly read GPX file %s", __FUNCTION__, name_src); + FILE *f = g_fopen(name_src, "r"); + if (f) { + ret = a_gpx_read_file ( vt, f ); + fclose(f); + f = NULL; + } + } + } + util_remove(name_src); g_free(babelargs); g_free(name_src); } @@ -371,17 +433,60 @@ gboolean a_babel_convert_from_url ( VikTrwLayer *vt, const char *url, const char return ret; } -static gboolean babel_general_convert_to( VikTrwLayer *vt, BabelStatusFunc cb, gchar **args, const gchar *name_src, gpointer user_data ) +/** + * a_babel_convert_from: + * @vt: The TRW layer to place data into. Duplicate items will be overwritten. + * @process_options: The options to control the appropriate processing function. See #ProcessOptions for more detail + * @cb: Optional callback function. Same usage as in a_babel_convert(). + * @user_data: passed along to cb + * @download_options: If downloading from a URL use these options (may be NULL) + * + * Loads data into a trw layer from a file, using gpsbabel. This routine is synchronous; + * that is, it will block the calling program until the conversion is done. To avoid blocking, call + * this routine from a worker thread. + * + * Returns: %TRUE on success + */ +gboolean a_babel_convert_from ( VikTrwLayer *vt, ProcessOptions *process_options, BabelStatusFunc cb, gpointer user_data, gpointer download_options ) { - if (!a_file_export(vt, name_src, FILE_TYPE_GPX, NULL)) { - g_error("Error exporting to %s", name_src); + if ( !process_options ) return FALSE; + if ( process_options->url ) + return a_babel_convert_from_url_filter ( vt, process_options->url, process_options->input_file_type, process_options->babel_filters, cb, user_data, download_options ); + if ( process_options->babelargs ) + return a_babel_convert_from_filter ( vt, process_options->babelargs, process_options->filename, process_options->babel_filters, cb, user_data, download_options ); + if ( process_options->shell_command ) + return a_babel_convert_from_shellcommand ( vt, process_options->shell_command, process_options->filename, cb, user_data, download_options ); + return FALSE; +} + +static gboolean babel_general_convert_to( VikTrwLayer *vt, VikTrack *trk, BabelStatusFunc cb, gchar **args, const gchar *name_src, gpointer user_data ) +{ + // Now strips out invisible tracks and waypoints + if (!a_file_export(vt, name_src, FILE_TYPE_GPX, trk, FALSE)) { + g_critical("Error exporting to %s", name_src); return FALSE; } return babel_general_convert (cb, args, user_data); } -gboolean a_babel_convert_to( VikTrwLayer *vt, const char *babelargs, const char *to, BabelStatusFunc cb, gpointer user_data ) +/** + * a_babel_convert_to: + * @vt: The TRW layer from which data is taken. + * @track: Operate on the individual track if specified. Use NULL when operating on a TRW layer + * @babelargs: A string containing gpsbabel command line options. In addition to any filters, this string + * must include the input file type (-i) option. + * @to: Filename or device the data is written to. + * @cb: Optional callback function. Same usage as in a_babel_convert. + * @user_data: passed along to cb + * + * Exports data using gpsbabel. This routine is synchronous; + * that is, it will block the calling program until the conversion is done. To avoid blocking, call + * this routine from a worker thread. + * + * Returns: %TRUE on successful invocation of GPSBabel command + */ +gboolean a_babel_convert_to( VikTrwLayer *vt, VikTrack *track, const char *babelargs, const char *to, BabelStatusFunc cb, gpointer user_data ) { int i,j; int fd_src; @@ -390,6 +495,7 @@ gboolean a_babel_convert_to( VikTrwLayer *vt, const char *babelargs, const char gchar *args[64]; if ((fd_src = g_file_open_tmp("tmp-viking.XXXXXX", &name_src, NULL)) >= 0) { + g_debug ("%s: temporary file: %s", __FUNCTION__, name_src); close(fd_src); if (gpsbabel_loc ) { @@ -411,11 +517,11 @@ gboolean a_babel_convert_to( VikTrwLayer *vt, const char *babelargs, const char args[i++] = (char *)to; args[i] = NULL; - ret = babel_general_convert_to ( vt, cb, args, name_src, user_data ); + ret = babel_general_convert_to ( vt, track, cb, args, name_src, user_data ); g_strfreev(sub_args); } else - g_error("gpsbabel not found in PATH"); + g_critical("gpsbabel not found in PATH"); g_remove(name_src); g_free(name_src); } @@ -423,18 +529,18 @@ gboolean a_babel_convert_to( VikTrwLayer *vt, const char *babelargs, const char return ret; } -static void set_mode(BabelMode mode, gchar *smode) +static void set_mode(BabelMode *mode, gchar *smode) { - mode.waypointsRead = smode[0] == 'r'; - mode.waypointsWrite = smode[1] == 'w'; - mode.tracksRead = smode[2] == 'r'; - mode.tracksWrite = smode[3] == 'w'; - mode.routesRead = smode[4] == 'r'; - mode.routesWrite = smode[5] == 'w'; + mode->waypointsRead = smode[0] == 'r'; + mode->waypointsWrite = smode[1] == 'w'; + mode->tracksRead = smode[2] == 'r'; + mode->tracksWrite = smode[3] == 'w'; + mode->routesRead = smode[4] == 'r'; + mode->routesWrite = smode[5] == 'w'; } /** - * load_feature: + * load_feature_parse_line: * * Load a single feature stored in the given line. */ @@ -449,11 +555,16 @@ static void load_feature_parse_line (gchar *line) && tokens[3] != NULL && tokens[4] != NULL ) { BabelDevice *device = g_malloc ( sizeof (BabelDevice) ); - set_mode (device->mode, tokens[1]); + set_mode (&(device->mode), tokens[1]); device->name = g_strdup (tokens[2]); - device->label = g_strdup (tokens[4]); + device->label = g_strndup (tokens[4], 50); // Limit really long label text a_babel_device_list = g_list_append (a_babel_device_list, device); - g_debug ("New gpsbabel device: %s", device->name); + g_debug ("New gpsbabel device: %s, %d%d%d%d%d%d(%s)", + device->name, + device->mode.waypointsRead, device->mode.waypointsWrite, + device->mode.tracksRead, device->mode.tracksWrite, + device->mode.routesRead, device->mode.routesWrite, + tokens[1]); } else { g_warning ( "Unexpected gpsbabel format string: %s", line); } @@ -463,12 +574,17 @@ static void load_feature_parse_line (gchar *line) && tokens[3] != NULL && tokens[4] != NULL ) { BabelFile *file = g_malloc ( sizeof (BabelFile) ); - set_mode (file->mode, tokens[1]); + set_mode (&(file->mode), tokens[1]); file->name = g_strdup (tokens[2]); file->ext = g_strdup (tokens[3]); file->label = g_strdup (tokens[4]); a_babel_file_list = g_list_append (a_babel_file_list, file); - g_debug ("New gpsbabel file: %s", file->name); + g_debug ("New gpsbabel file: %s, %d%d%d%d%d%d(%s)", + file->name, + file->mode.waypointsRead, file->mode.waypointsWrite, + file->mode.tracksRead, file->mode.tracksWrite, + file->mode.routesRead, file->mode.routesWrite, + tokens[1]); } else { g_warning ( "Unexpected gpsbabel format string: %s", line); } @@ -501,24 +617,74 @@ static gboolean load_feature () ret = babel_general_convert (load_feature_cb, args, NULL); } else - g_error("gpsbabel not found in PATH"); + g_critical("gpsbabel not found in PATH"); return ret; } +static VikLayerParam prefs[] = { + { VIK_LAYER_NUM_TYPES, VIKING_PREFERENCES_IO_NAMESPACE "gpsbabel", VIK_LAYER_PARAM_STRING, VIK_LAYER_GROUP_NONE, N_("GPSBabel:"), VIK_LAYER_WIDGET_FILEENTRY, NULL, NULL, + N_("Allow setting the specific instance of GPSBabel. You must restart Viking for this value to take effect."), NULL, NULL, NULL }, +}; + +/** + * a_babel_init: + * + * Just setup preferences first + */ void a_babel_init () { - /* TODO allow to set gpsbabel path via command line */ - gpsbabel_loc = g_find_program_in_path( "gpsbabel" ); - if ( !gpsbabel_loc ) - g_error( "gpsbabel not found in PATH" ); + // Set the defaults + VikLayerParamData vlpd; +#ifdef WINDOWS + // Basic guesses - could use %ProgramFiles% but this is simpler: + if ( g_file_test ( "C:\\Program Files (x86)\\GPSBabel\\gpsbabel.exe", G_FILE_TEST_EXISTS ) ) + // 32 bit location on a 64 bit system + vlpd.s = "C:\\Program Files (x86)\\GPSBabel\\gpsbabel.exe"; + else + vlpd.s = "C:\\Program Files\\GPSBabel\\gpsbabel.exe"; +#else + vlpd.s = "gpsbabel"; +#endif + a_preferences_register(&prefs[0], vlpd, VIKING_PREFERENCES_IO_GROUP_KEY); +} + +/** + * a_babel_post_init: + * + * Initialises babel module. + * Mainly check existence of gpsbabel progam + * and load all features available in that version. + */ +void a_babel_post_init () +{ + // Read the current preference + const gchar *gpsbabel = a_preferences_get(VIKING_PREFERENCES_IO_NAMESPACE "gpsbabel")->s; + // If setting is still the UNIX default then lookup in the path - otherwise attempt to use the specified value directly. + if ( g_strcmp0 ( gpsbabel, "gpsbabel" ) == 0 ) { + gpsbabel_loc = g_find_program_in_path( "gpsbabel" ); + if ( !gpsbabel_loc ) + g_critical( "gpsbabel not found in PATH" ); + } + else + gpsbabel_loc = (gchar*)gpsbabel; + + // Unlikely to package unbuffer on Windows so ATM don't even bother trying + // Highly unlikely unbuffer is available on a Windows system otherwise +#ifndef WINDOWS unbuffer_loc = g_find_program_in_path( "unbuffer" ); if ( !unbuffer_loc ) g_warning( "unbuffer not found in PATH" ); +#endif load_feature (); } +/** + * a_babel_uninit: + * + * Free resources acquired by a_babel_init. + */ void a_babel_uninit () { g_free ( gpsbabel_loc ); @@ -548,3 +714,15 @@ void a_babel_uninit () } } + +/** + * a_babel_available: + * + * Indicates if babel is available or not. + * + * Returns: true if babel available + */ +gboolean a_babel_available () +{ + return a_babel_device_list != NULL; +}