+/*
+ * Geeqie
+ * (C) 2006 John Ellis
+ * Copyright (C) 2008 The Geeqie Team
+ *
+ * Author: John Ellis
+ *
+ * This software is released under the GNU General Public License (GNU GPL).
+ * Please read the included file COPYING for more information.
+ * This software comes with no warranty of any kind, use at your own risk!
+ */
+
+
+#include "main.h"
+#include "filefilter.h"
+
+#include "cache.h"
+#include "debug.h"
+#include "rcfile.h"
+#include "secure_save.h"
+#include "thumb_standard.h"
+#include "ui_fileops.h"
+
+
+/*
+ *-----------------------------------------------------------------------------
+ * file filtering
+ *-----------------------------------------------------------------------------
+ */
+
+static GList *filter_list = NULL;
+static GList *extension_list = NULL;
+static GList *sidecar_ext_list = NULL;
+
+static GList *file_class_extension_list[FILE_FORMAT_CLASSES];
+
+
+gint ishidden(const gchar *name)
+{
+ if (name[0] != '.') return FALSE;
+ if (name[1] == '\0' || (name[1] == '.' && name[2] == '\0')) return FALSE;
+ return TRUE;
+}
+
+static FilterEntry *filter_entry_new(const gchar *key, const gchar *description,
+ const gchar *extensions, FileFormatClass file_class, gint enabled)
+{
+ FilterEntry *fe;
+
+ fe = g_new0(FilterEntry, 1);
+ fe->key = g_strdup(key);
+ fe->description = g_strdup(description);
+ fe->extensions = g_strdup(extensions);
+ fe->enabled = enabled;
+ fe->file_class = file_class;
+
+ return fe;
+}
+
+static void filter_entry_free(FilterEntry *fe)
+{
+ if (!fe) return;
+
+ g_free(fe->key);
+ g_free(fe->description);
+ g_free(fe->extensions);
+ g_free(fe);
+}
+
+GList *filter_get_list(void)
+{
+ return filter_list;
+}
+
+void filter_remove_entry(FilterEntry *fe)
+{
+ if (!g_list_find(filter_list, fe)) return;
+
+ filter_list = g_list_remove(filter_list, fe);
+ filter_entry_free(fe);
+}
+
+static gint filter_key_exists(const gchar *key)
+{
+ GList *work;
+
+ if (!key) return FALSE;
+
+ work = filter_list;
+ while (work)
+ {
+ FilterEntry *fe = work->data;
+ work = work->next;
+
+ if (strcmp(fe->key, key) == 0) return TRUE;
+ }
+
+ return FALSE;
+}
+
+void filter_add(const gchar *key, const gchar *description, const gchar *extensions, FileFormatClass file_class, gint enabled)
+{
+ filter_list = g_list_append(filter_list, filter_entry_new(key, description, extensions, file_class, enabled));
+}
+
+void filter_add_unique(const gchar *description, const gchar *extensions, FileFormatClass file_class, gint enabled)
+{
+ gchar *key;
+ gint n;
+
+ key = g_strdup("user0");
+ n = 1;
+ while (filter_key_exists(key))
+ {
+ g_free(key);
+ if (n > 999) return;
+ key = g_strdup_printf("user%d", n);
+ n++;
+ }
+
+ filter_add(key, description, extensions, file_class, enabled);
+ g_free(key);
+}
+
+static void filter_add_if_missing(const gchar *key, const gchar *description, const gchar *extensions, FileFormatClass file_class, gint enabled)
+{
+ GList *work;
+
+ if (!key) return;
+
+ work = filter_list;
+ while (work)
+ {
+ FilterEntry *fe = work->data;
+ work = work->next;
+ if (fe->key && strcmp(fe->key, key) == 0)
+ {
+ if (fe->file_class == FORMAT_CLASS_UNKNOWN)
+ fe->file_class = file_class; /* for compatibility */
+ return;
+ }
+ }
+
+ filter_add(key, description, extensions, file_class, enabled);
+}
+
+void filter_reset(void)
+{
+ GList *work;
+
+ work = filter_list;
+ while (work)
+ {
+ FilterEntry *fe = work->data;
+ work = work->next;
+ filter_entry_free(fe);
+ }
+
+ g_list_free(filter_list);
+ filter_list = NULL;
+}
+
+void filter_add_defaults(void)
+{
+ GSList *list, *work;
+
+ list = gdk_pixbuf_get_formats();
+ work = list;
+ while (work)
+ {
+ GdkPixbufFormat *format;
+ gchar *name;
+ gchar *desc;
+ gchar **extensions;
+ GString *filter = NULL;
+ gint i;
+
+ format = work->data;
+ work = work->next;
+
+ name = gdk_pixbuf_format_get_name(format);
+ desc = gdk_pixbuf_format_get_description(format);
+ extensions = gdk_pixbuf_format_get_extensions(format);
+
+ i = 0;
+ while (extensions[i])
+ {
+ if (!filter)
+ {
+ filter = g_string_new(".");
+ filter = g_string_append(filter, extensions[i]);
+ }
+ else
+ {
+ filter = g_string_append(filter, ";.");
+ filter = g_string_append(filter, extensions[i]);
+ }
+ i++;
+ }
+
+ DEBUG_1("loader reported [%s] [%s] [%s]", name, desc, filter->str);
+
+ filter_add_if_missing(name, desc, filter->str, FORMAT_CLASS_IMAGE, TRUE);
+
+ g_free(name);
+ g_free(desc);
+ g_strfreev(extensions);
+ g_string_free(filter, TRUE);
+ }
+ g_slist_free(list);
+
+ /* add defaults even if gdk-pixbuf does not have them, but disabled */
+ filter_add_if_missing("jpeg", "JPEG group", ".jpg;.jpeg;.jpe", FORMAT_CLASS_IMAGE, FALSE);
+ filter_add_if_missing("png", "Portable Network Graphic", ".png", FORMAT_CLASS_IMAGE, FALSE);
+ filter_add_if_missing("tiff", "Tiff", ".tif;.tiff", FORMAT_CLASS_IMAGE, FALSE);
+ filter_add_if_missing("pnm", "Packed Pixel formats", ".pbm;.pgm;.pnm;.ppm", FORMAT_CLASS_IMAGE, FALSE);
+ filter_add_if_missing("gif", "Graphics Interchange Format", ".gif", FORMAT_CLASS_IMAGE, FALSE);
+ filter_add_if_missing("xbm", "X bitmap", ".xbm", FORMAT_CLASS_IMAGE, FALSE);
+ filter_add_if_missing("xpm", "X pixmap", ".xpm", FORMAT_CLASS_IMAGE, FALSE);
+ filter_add_if_missing("bmp", "Bitmap", ".bmp", FORMAT_CLASS_IMAGE, FALSE);
+ filter_add_if_missing("ico", "Icon file", ".ico;.cur", FORMAT_CLASS_IMAGE, FALSE);
+ filter_add_if_missing("ras", "Raster", ".ras", FORMAT_CLASS_IMAGE, FALSE);
+ filter_add_if_missing("svg", "Scalable Vector Graphics", ".svg", FORMAT_CLASS_IMAGE, FALSE);
+
+ /* non-image files that might be desirable to show */
+ filter_add_if_missing("xmp", "XMP sidecar", ".xmp", FORMAT_CLASS_META, TRUE);
+
+ /* These are the raw camera formats with embedded jpeg/exif.
+ * (see format_raw.c and/or exiv2.cc)
+ */
+ filter_add_if_missing("arw", "Sony raw format", ".arw;.srf;.sr2", FORMAT_CLASS_RAWIMAGE, TRUE);
+ filter_add_if_missing("crw", "Canon raw format", ".crw;.cr2", FORMAT_CLASS_RAWIMAGE, TRUE);
+ filter_add_if_missing("kdc", "Kodak raw format", ".kdc;.dcr", FORMAT_CLASS_RAWIMAGE, TRUE);
+ filter_add_if_missing("raf", "Fujifilm raw format", ".raf", FORMAT_CLASS_RAWIMAGE, TRUE);
+ filter_add_if_missing("mef", "Mamiya raw format", ".mef;.mos", FORMAT_CLASS_RAWIMAGE, TRUE);
+ filter_add_if_missing("mrw", "Minolta raw format", ".mrw", FORMAT_CLASS_RAWIMAGE, TRUE);
+ filter_add_if_missing("nef", "Nikon raw format", ".nef", FORMAT_CLASS_RAWIMAGE, TRUE);
+ filter_add_if_missing("orf", "Olympus raw format", ".orf", FORMAT_CLASS_RAWIMAGE, TRUE);
+ filter_add_if_missing("pef", "Pentax or Samsung raw format", ".pef;.ptx", FORMAT_CLASS_RAWIMAGE, TRUE);
+ filter_add_if_missing("dng", "Adobe Digital Negative raw format", ".dng", FORMAT_CLASS_RAWIMAGE, TRUE);
+ filter_add_if_missing("x3f", "Sigma raw format", ".x3f", FORMAT_CLASS_RAWIMAGE, TRUE);
+ filter_add_if_missing("raw", "Panasonic raw format", ".raw", FORMAT_CLASS_RAWIMAGE, TRUE);
+ filter_add_if_missing("r3d", "Red raw format", ".r3d", FORMAT_CLASS_RAWIMAGE, TRUE);
+ filter_add_if_missing("3fr", "Hasselblad raw format", ".3fr", FORMAT_CLASS_RAWIMAGE, TRUE);
+ filter_add_if_missing("erf", "Epson raw format", ".erf", FORMAT_CLASS_RAWIMAGE, TRUE);
+}
+
+GList *filter_to_list(const gchar *extensions)
+{
+ GList *list = NULL;
+ const gchar *p;
+
+ if (!extensions) return NULL;
+
+ p = extensions;
+ while (*p != '\0')
+ {
+ const gchar *b;
+ gint l = 0;
+
+ b = p;
+ while (*p != '\0' && *p != ';')
+ {
+ p++;
+ l++;
+ }
+ list = g_list_append(list, g_strndup(b, l));
+ if (*p == ';') p++;
+ }
+
+ return list;
+}
+
+void filter_rebuild(void)
+{
+ GList *work;
+ gint i;
+
+ string_list_free(extension_list);
+ extension_list = NULL;
+
+ for (i = 0; i < FILE_FORMAT_CLASSES; i++)
+ {
+ string_list_free(file_class_extension_list[i]);
+ file_class_extension_list[i] = NULL;
+ }
+
+ work = filter_list;
+ while (work)
+ {
+ FilterEntry *fe;
+
+ fe = work->data;
+ work = work->next;
+
+ if (fe->enabled)
+ {
+ GList *ext;
+
+ ext = filter_to_list(fe->extensions);
+ if (ext) extension_list = g_list_concat(extension_list, ext);
+
+ if (fe->file_class >= 0 && fe->file_class < FILE_FORMAT_CLASSES)
+ {
+ ext = filter_to_list(fe->extensions);
+ if (ext) file_class_extension_list[fe->file_class] = g_list_concat(file_class_extension_list[fe->file_class], ext);
+ }
+ else
+ {
+ printf("WARNING: invalid file class %d\n", fe->file_class);
+ }
+ }
+ }
+}
+
+gint filter_name_exists(const gchar *name)
+{
+ GList *work;
+ gint ln;
+
+ if (!extension_list || options->file_filter.disable) return TRUE;
+
+ ln = strlen(name);
+ work = extension_list;
+ while (work)
+ {
+ gchar *filter = work->data;
+ gint lf = strlen(filter);
+
+ if (ln >= lf)
+ {
+ if (strncasecmp(name + ln - lf, filter, lf) == 0) return TRUE;
+ }
+ work = work->next;
+ }
+
+ return FALSE;
+}
+
+gint filter_file_class(const gchar *name, FileFormatClass file_class)
+{
+ GList *work;
+ gint ln;
+
+ if (file_class < 0 || file_class >= FILE_FORMAT_CLASSES)
+ {
+ printf("WARNING: invalid file class %d\n", file_class);
+ return FALSE;
+ }
+
+ ln = strlen(name);
+ work = file_class_extension_list[file_class];
+ while (work)
+ {
+ gchar *filter = work->data;
+ gint lf = strlen(filter);
+
+ if (ln >= lf)
+ {
+ if (strncasecmp(name + ln - lf, filter, lf) == 0) return TRUE;
+ }
+ work = work->next;
+ }
+
+ return FALSE;
+}
+
+void filter_write_list(SecureSaveInfo *ssi)
+{
+ GList *work;
+
+ work = filter_list;
+ while (work)
+ {
+ FilterEntry *fe = work->data;
+ work = work->next;
+
+ gchar *extensions = escquote_value(fe->extensions);
+ gchar *description = escquote_value(fe->description);
+
+ secure_fprintf(ssi, "file_filter.ext: \"%s%s\" %s %s %d\n",
+ (fe->enabled) ? "" : "#",
+ fe->key, extensions, description, fe->file_class);
+ g_free(extensions);
+ g_free(description);
+ }
+}
+
+void filter_parse(const gchar *text)
+{
+ const gchar *p;
+ gchar *key;
+ gchar *ext;
+ gchar *desc;
+ gint enabled = TRUE;
+ gint file_class;
+
+ if (!text || text[0] != '"') return;
+
+ key = quoted_value(text, &p);
+ if (!key) return;
+
+ ext = quoted_value(p, &p);
+ desc = quoted_value(p, &p);
+
+ file_class = strtol(p, NULL, 10);
+
+ if (file_class < 0 || file_class >= FILE_FORMAT_CLASSES) file_class = FORMAT_CLASS_UNKNOWN;
+
+ if (key && key[0] == '#')
+ {
+ gchar *tmp;
+ tmp = g_strdup(key + 1);
+ g_free(key);
+ key = tmp;
+
+ enabled = FALSE;
+ }
+
+ if (key && strlen(key) > 0 && ext) filter_add(key, desc, ext, file_class, enabled);
+
+ g_free(key);
+ g_free(ext);
+ g_free(desc);
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ * sidecar extension list
+ *-----------------------------------------------------------------------------
+ */
+
+GList *sidecar_ext_get_list(void)
+{
+ return sidecar_ext_list;
+}
+
+void sidecar_ext_parse(const gchar *text, gint quoted)
+{
+ GList *work;
+ gchar *value;
+
+ work = sidecar_ext_list;
+ while (work)
+ {
+ gchar *ext = work->data;
+ work = work->next;
+ g_free(ext);
+ }
+ g_list_free(sidecar_ext_list);
+ sidecar_ext_list = NULL;
+
+ if (quoted)
+ value = quoted_value(text, NULL);
+ else
+ value = g_strdup(text);
+
+ if (value == NULL) return;
+
+ sidecar_ext_list = filter_to_list(value);
+
+ g_free(value);
+}
+
+void sidecar_ext_write(SecureSaveInfo *ssi)
+{
+ secure_fprintf(ssi, "sidecar.ext: \"%s\"\n", sidecar_ext_to_string());
+}
+
+char *sidecar_ext_to_string()
+{
+ GList *work;
+ GString *str = g_string_new("");
+
+ work = sidecar_ext_list;
+ while (work)
+ {
+ gchar *ext = work->data;
+ work = work->next;
+ g_string_append(str, ext);
+ if (work) g_string_append(str, ";");
+ }
+ return g_string_free(str, FALSE);
+}
+
+void sidecar_ext_add_defaults()
+{
+ sidecar_ext_parse(".jpg;.cr2;.nef;.crw;.xmp", FALSE);
+}