From e42129241681dde7adae7d20697e7b421682fbb4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 18:23:22 +0200 Subject: Adding upstream version 2.10.22. Signed-off-by: Daniel Baumann --- libgimpthumb/Makefile.am | 137 ++++ libgimpthumb/Makefile.in | 1144 +++++++++++++++++++++++++++++ libgimpthumb/gimp-thumbnail-list.c | 251 +++++++ libgimpthumb/gimpthumb-enums.c | 75 ++ libgimpthumb/gimpthumb-enums.h | 118 +++ libgimpthumb/gimpthumb-error.c | 52 ++ libgimpthumb/gimpthumb-error.h | 64 ++ libgimpthumb/gimpthumb-types.h | 38 + libgimpthumb/gimpthumb-utils.c | 870 ++++++++++++++++++++++ libgimpthumb/gimpthumb-utils.h | 73 ++ libgimpthumb/gimpthumb.def | 32 + libgimpthumb/gimpthumb.h | 38 + libgimpthumb/gimpthumbnail.c | 1400 ++++++++++++++++++++++++++++++++++++ libgimpthumb/gimpthumbnail.h | 135 ++++ 14 files changed, 4427 insertions(+) create mode 100644 libgimpthumb/Makefile.am create mode 100644 libgimpthumb/Makefile.in create mode 100644 libgimpthumb/gimp-thumbnail-list.c create mode 100644 libgimpthumb/gimpthumb-enums.c create mode 100644 libgimpthumb/gimpthumb-enums.h create mode 100644 libgimpthumb/gimpthumb-error.c create mode 100644 libgimpthumb/gimpthumb-error.h create mode 100644 libgimpthumb/gimpthumb-types.h create mode 100644 libgimpthumb/gimpthumb-utils.c create mode 100644 libgimpthumb/gimpthumb-utils.h create mode 100644 libgimpthumb/gimpthumb.def create mode 100644 libgimpthumb/gimpthumb.h create mode 100644 libgimpthumb/gimpthumbnail.c create mode 100644 libgimpthumb/gimpthumbnail.h (limited to 'libgimpthumb') diff --git a/libgimpthumb/Makefile.am b/libgimpthumb/Makefile.am new file mode 100644 index 0000000..2655379 --- /dev/null +++ b/libgimpthumb/Makefile.am @@ -0,0 +1,137 @@ +## Process this file with automake to produce Makefile.in + +libgimpbase = $(top_builddir)/libgimpbase/libgimpbase-$(GIMP_API_VERSION).la + +if PLATFORM_WIN32 +no_undefined = -no-undefined +endif + +if PLATFORM_OSX +xobjective_c = "-xobjective-c" +xobjective_cxx = "-xobjective-c++" +xnone = "-xnone" +framework_cocoa = -framework Cocoa +endif + +if OS_WIN32 +gimpthumb_def = gimpthumb.def +libgimpthumb_export_symbols = -export-symbols $(srcdir)/gimpthumb.def + +install-libtool-import-lib: + $(INSTALL) .libs/libgimpthumb-$(GIMP_API_VERSION).dll.a $(DESTDIR)$(libdir) + $(INSTALL) $(srcdir)/gimpthumb.def $(DESTDIR)$(libdir) + +uninstall-libtool-import-lib: + -rm $(DESTDIR)$(libdir)/libgimpthumb-$(GIMP_API_VERSION).dll.a + -rm $(DESTDIR)$(libdir)/gimpthumb.def +else +install-libtool-import-lib: +uninstall-libtool-import-lib: +endif + +if MS_LIB_AVAILABLE +noinst_DATA = gimpthumb-$(GIMP_API_VERSION).lib + +install-ms-lib: + $(INSTALL) gimpthumb-$(GIMP_API_VERSION).lib $(DESTDIR)$(libdir) + +uninstall-ms-lib: + -rm $(DESTDIR)$(libdir)/gimpthumb-$(GIMP_API_VERSION).lib + +gimpthumb-@GIMP_API_VERSION@.lib: gimpthumb.def + lib -name:libgimpthumb-$(GIMP_API_VERSION)-@LT_CURRENT_MINUS_AGE@.dll -def:gimpthumb.def -out:$@ + +else +install-ms-lib: +uninstall-ms-lib: +endif + +libgimpthumbincludedir = $(includedir)/gimp-$(GIMP_API_VERSION)/libgimpthumb + +AM_CPPFLAGS = \ + -DG_LOG_DOMAIN=\"LibGimpThumb\" \ + -DGIMP_THUMB_COMPILATION \ + -I$(top_srcdir) \ + $(GDK_PIXBUF_CFLAGS) \ + $(GIO_CFLAGS) \ + -I$(includedir) + +AM_CFLAGS = \ + $(xobjective_c) + +AM_CXXFLAGS = \ + $(xobjective_cxx) + +AM_LDFLAGS = \ + $(xnone) + +EXTRA_DIST = \ + gimpthumb.def + +lib_LTLIBRARIES = libgimpthumb-@GIMP_API_VERSION@.la + +libgimpthumb_@GIMP_API_VERSION@_la_SOURCES = \ + gimpthumb.h \ + gimpthumb-enums.c \ + gimpthumb-enums.h \ + gimpthumb-error.c \ + gimpthumb-error.h \ + gimpthumb-types.h \ + gimpthumb-utils.c \ + gimpthumb-utils.h \ + gimpthumbnail.c \ + gimpthumbnail.h + +libgimpthumbinclude_HEADERS = \ + gimpthumb.h \ + gimpthumb-enums.h \ + gimpthumb-error.h \ + gimpthumb-types.h \ + gimpthumb-utils.h \ + gimpthumbnail.h + +libgimpthumb_@GIMP_API_VERSION@_la_LDFLAGS = \ + -version-info $(LT_VERSION_INFO) \ + $(no_undefined) \ + $(libgimpbase) \ + $(libgimpthumb_export_symbols) \ + $(framework_cocoa) \ + $(xnone) + +libgimpthumb_@GIMP_API_VERSION@_la_LIBADD = \ + $(GDK_PIXBUF_LIBS) \ + $(GIO_LIBS) + + +noinst_PROGRAMS = gimp-thumbnail-list + +gimp_thumbnail_list_SOURCES = gimp-thumbnail-list.c + +gimp_thumbnail_list_LDADD = \ + libgimpthumb-$(GIMP_API_VERSION).la \ + $(GDK_PIXBUF_LIBS) \ + $(GIO_LIBS) + + +install-data-local: install-ms-lib install-libtool-import-lib + +uninstall-local: uninstall-ms-lib uninstall-libtool-import-lib + + +# +# rules to generate built sources +# +# setup autogeneration dependencies +gen_sources = xgen-tec +CLEANFILES = $(gen_sources) + +gimpthumb-enums.c: $(srcdir)/gimpthumb-enums.h $(GIMP_MKENUMS) Makefile.am + $(AM_V_GEN) $(GIMP_MKENUMS) \ + --fhead "#include \"config.h\"\n#include \n#include \"gimpthumb-enums.h\"" \ + --fprod "\n/* enumerations from \"@filename@\" */" \ + --vhead "GType\n@enum_name@_get_type (void)\n{\n static const G@Type@Value values[] =\n {" \ + --vprod " { @VALUENAME@, @valuedesc@, \"@valuenick@\" }," \ + --vtail " { 0, NULL, NULL }\n };\n\n static GType type = 0;\n\n if (G_UNLIKELY (! type))\n type = g_@type@_register_static (\"@EnumName@\", values);\n\n return type;\n}\n" \ + $< > xgen-tec \ + && cp xgen-tec $(@F) \ + && rm -f xgen-tec diff --git a/libgimpthumb/Makefile.in b/libgimpthumb/Makefile.in new file mode 100644 index 0000000..ccb6757 --- /dev/null +++ b/libgimpthumb/Makefile.in @@ -0,0 +1,1144 @@ +# Makefile.in generated by automake 1.16.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + + + + +VPATH = @srcdir@ +am__is_gnu_make = { \ + if test -z '$(MAKELEVEL)'; then \ + false; \ + elif test -n '$(MAKE_HOST)'; 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+$(am__aclocal_m4_deps): + +clean-noinstPROGRAMS: + @list='$(noinst_PROGRAMS)'; test -n "$$list" || exit 0; \ + echo " rm -f" $$list; \ + rm -f $$list || exit $$?; \ + test -n "$(EXEEXT)" || exit 0; \ + list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \ + echo " rm -f" $$list; \ + rm -f $$list + +install-libLTLIBRARIES: $(lib_LTLIBRARIES) + @$(NORMAL_INSTALL) + @list='$(lib_LTLIBRARIES)'; test -n "$(libdir)" || list=; \ + list2=; for p in $$list; do \ + if test -f $$p; then \ + list2="$$list2 $$p"; \ + else :; fi; \ + done; \ + test -z "$$list2" || { \ + echo " $(MKDIR_P) '$(DESTDIR)$(libdir)'"; \ + $(MKDIR_P) "$(DESTDIR)$(libdir)" || exit 1; \ + echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(libdir)'"; \ + $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(libdir)"; \ + } + +uninstall-libLTLIBRARIES: + @$(NORMAL_UNINSTALL) + 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uninstall-libtool-import-lib + +gimpthumb-enums.c: $(srcdir)/gimpthumb-enums.h $(GIMP_MKENUMS) Makefile.am + $(AM_V_GEN) $(GIMP_MKENUMS) \ + --fhead "#include \"config.h\"\n#include \n#include \"gimpthumb-enums.h\"" \ + --fprod "\n/* enumerations from \"@filename@\" */" \ + --vhead "GType\n@enum_name@_get_type (void)\n{\n static const G@Type@Value values[] =\n {" \ + --vprod " { @VALUENAME@, @valuedesc@, \"@valuenick@\" }," \ + --vtail " { 0, NULL, NULL }\n };\n\n static GType type = 0;\n\n if (G_UNLIKELY (! type))\n type = g_@type@_register_static (\"@EnumName@\", values);\n\n return type;\n}\n" \ + $< > xgen-tec \ + && cp xgen-tec $(@F) \ + && rm -f xgen-tec + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/libgimpthumb/gimp-thumbnail-list.c b/libgimpthumb/gimp-thumbnail-list.c new file mode 100644 index 0000000..2086af2 --- /dev/null +++ b/libgimpthumb/gimp-thumbnail-list.c @@ -0,0 +1,251 @@ +/* + * gimp-thumbnail-list.c + */ + +#include +#include +#include + + +#define STATE_NONE -1 +#define STATE_ERROR -2 + + +static gboolean parse_option_state (const gchar *option_name, + const gchar *value, + gpointer data, + GError **error); +static gboolean parse_option_path (const gchar *option_name, + const gchar *value, + gpointer data, + GError **error); +static void process_folder (const gchar *folder); +static void process_thumbnail (const gchar *filename); + + +static GimpThumbState option_state = STATE_NONE; +static gboolean option_verbose = FALSE; +static gchar *option_path = NULL; + + +static const GOptionEntry main_entries[] = +{ + { + "state", 's', 0, + G_OPTION_ARG_CALLBACK, parse_option_state, + "Filter by thumbnail state " + "(unknown|remote|folder|special|not-found|exists|old|failed|ok|error)", + "" + }, + { + "path", 'p', 0, + G_OPTION_ARG_CALLBACK, parse_option_path, + "Filter by original file's path", + "" + }, + { + "verbose", 'v', 0, + G_OPTION_ARG_NONE, &option_verbose, + "Print additional info per matched file", NULL + }, + { NULL } +}; + + +gint +main (gint argc, + gchar *argv[]) +{ + GOptionContext *context; + GDir *dir; + const gchar *thumb_folder; + const gchar *folder; + GError *error = NULL; + + gimp_thumb_init ("gimp-thumbnail-list", NULL); + + thumb_folder = gimp_thumb_get_thumb_base_dir (); + + context = g_option_context_new (NULL); + g_option_context_add_main_entries (context, main_entries, NULL); + + if (! g_option_context_parse (context, &argc, &argv, &error)) + { + g_printerr ("%s\n", error->message); + return -1; + } + + dir = g_dir_open (thumb_folder, 0, &error); + + if (! dir) + g_error ("Error opening %s: %s", thumb_folder, error->message); + + while ((folder = g_dir_read_name (dir))) + { + gchar *filename; + + filename = g_build_filename (thumb_folder, folder, NULL); + + if (g_file_test (filename, G_FILE_TEST_IS_DIR)) + process_folder (filename); + + g_free (filename); + } + + g_dir_close (dir); + + return 0; +} + +static gboolean +parse_option_state (const gchar *option_name, + const gchar *value, + gpointer data, + GError **error) +{ + if (strcmp (value, "unknown") == 0) + option_state = GIMP_THUMB_STATE_UNKNOWN; + else if (strcmp (value, "remote") == 0) + option_state = GIMP_THUMB_STATE_REMOTE; + else if (strcmp (value, "folder") == 0) + option_state = GIMP_THUMB_STATE_FOLDER; + else if (strcmp (value, "special") == 0) + option_state = GIMP_THUMB_STATE_SPECIAL; + else if (strcmp (value, "not-found") == 0) + option_state = GIMP_THUMB_STATE_NOT_FOUND; + else if (strcmp (value, "exists") == 0) + option_state = GIMP_THUMB_STATE_EXISTS; + else if (strcmp (value, "old") == 0) + option_state = GIMP_THUMB_STATE_OLD; + else if (strcmp (value, "failed") == 0) + option_state = GIMP_THUMB_STATE_FAILED; + else if (strcmp (value, "ok") == 0) + option_state = GIMP_THUMB_STATE_OK; + else if (strcmp (value, "error") == 0) + option_state = STATE_ERROR; + else + return FALSE; + + return TRUE; +} + +static gboolean +parse_option_path (const gchar *option_name, + const gchar *value, + gpointer data, + GError **error) +{ + option_path = g_strdup (value); + + return TRUE; +} + +static void +process_folder (const gchar *folder) +{ + GDir *dir; + const gchar *name; + GError *error = NULL; + +#if 0 + g_print ("processing folder: %s\n", folder); +#endif + + dir = g_dir_open (folder, 0, &error); + + if (! dir) + { + g_printerr ("Error opening '%s': %s", folder, error->message); + return; + } + + while ((name = g_dir_read_name (dir))) + { + gchar *filename; + + filename = g_build_filename (folder, name, NULL); + + if (g_file_test (filename, G_FILE_TEST_IS_DIR)) + process_folder (filename); + else + process_thumbnail (filename); + + g_free (filename); + } + + g_dir_close (dir); +} + +static void +process_thumbnail (const gchar *filename) +{ + GimpThumbnail *thumbnail; + GError *error = NULL; + + thumbnail = gimp_thumbnail_new (); + + if (! gimp_thumbnail_set_from_thumb (thumbnail, filename, &error)) + { + if (option_state == STATE_ERROR) + { + if (option_verbose) + g_print ("%s '%s'\n", filename, error->message); + else + g_print ("%s\n", filename); + } + + g_clear_error (&error); + } + else + { + GimpThumbState state = gimp_thumbnail_peek_image (thumbnail); + + if ((option_state == STATE_NONE || state == option_state) + + && + + (option_path == NULL || + strstr (thumbnail->image_uri, option_path))) + { + if (option_verbose) + g_print ("%s '%s'\n", filename, thumbnail->image_uri); + else + g_print ("%s\n", filename); + } + +#if 0 + switch (foo) + { + case GIMP_THUMB_STATE_REMOTE: + g_print ("%s Remote image '%s'\n", filename, thumbnail->image_uri); + break; + + case GIMP_THUMB_STATE_FOLDER: + g_print ("%s Folder '%s'\n", filename, thumbnail->image_uri); + break; + + case GIMP_THUMB_STATE_SPECIAL: + g_print ("%s Special file '%s'\n", filename, thumbnail->image_uri); + break; + + case GIMP_THUMB_STATE_NOT_FOUND: + g_print ("%s Image not found '%s'\n", filename, thumbnail->image_uri); + break; + + case GIMP_THUMB_STATE_OLD: + g_print ("%s Thumbnail old '%s'\n", filename, thumbnail->image_uri); + break; + + case GIMP_THUMB_STATE_FAILED: + g_print ("%s EEEEEEEEK '%s'\n", filename, thumbnail->image_uri); + break; + + default: + g_print ("%s '%s'\n", filename, thumbnail->image_uri); + break; + } +#endif + } + + g_object_unref (thumbnail); +} diff --git a/libgimpthumb/gimpthumb-enums.c b/libgimpthumb/gimpthumb-enums.c new file mode 100644 index 0000000..9551208 --- /dev/null +++ b/libgimpthumb/gimpthumb-enums.c @@ -0,0 +1,75 @@ + +/* Generated data (by gimp-mkenums) */ + +#include "config.h" +#include +#include "gimpthumb-enums.h" + +/* enumerations from "gimpthumb-enums.h" */ +GType +gimp_thumb_file_type_get_type (void) +{ + static const GEnumValue values[] = + { + { GIMP_THUMB_FILE_TYPE_NONE, "GIMP_THUMB_FILE_TYPE_NONE", "none" }, + { GIMP_THUMB_FILE_TYPE_REGULAR, "GIMP_THUMB_FILE_TYPE_REGULAR", "regular" }, + { GIMP_THUMB_FILE_TYPE_FOLDER, "GIMP_THUMB_FILE_TYPE_FOLDER", "folder" }, + { GIMP_THUMB_FILE_TYPE_SPECIAL, "GIMP_THUMB_FILE_TYPE_SPECIAL", "special" }, + { 0, NULL, NULL } + }; + + static GType type = 0; + + if (G_UNLIKELY (! type)) + type = g_enum_register_static ("GimpThumbFileType", values); + + return type; +} + +GType +gimp_thumb_size_get_type (void) +{ + static const GEnumValue values[] = + { + { GIMP_THUMB_SIZE_FAIL, "GIMP_THUMB_SIZE_FAIL", "fail" }, + { GIMP_THUMB_SIZE_NORMAL, "GIMP_THUMB_SIZE_NORMAL", "normal" }, + { GIMP_THUMB_SIZE_LARGE, "GIMP_THUMB_SIZE_LARGE", "large" }, + { 0, NULL, NULL } + }; + + static GType type = 0; + + if (G_UNLIKELY (! type)) + type = g_enum_register_static ("GimpThumbSize", values); + + return type; +} + +GType +gimp_thumb_state_get_type (void) +{ + static const GEnumValue values[] = + { + { GIMP_THUMB_STATE_UNKNOWN, "GIMP_THUMB_STATE_UNKNOWN", "unknown" }, + { GIMP_THUMB_STATE_REMOTE, "GIMP_THUMB_STATE_REMOTE", "remote" }, + { GIMP_THUMB_STATE_FOLDER, "GIMP_THUMB_STATE_FOLDER", "folder" }, + { GIMP_THUMB_STATE_SPECIAL, "GIMP_THUMB_STATE_SPECIAL", "special" }, + { GIMP_THUMB_STATE_NOT_FOUND, "GIMP_THUMB_STATE_NOT_FOUND", "not-found" }, + { GIMP_THUMB_STATE_EXISTS, "GIMP_THUMB_STATE_EXISTS", "exists" }, + { GIMP_THUMB_STATE_OLD, "GIMP_THUMB_STATE_OLD", "old" }, + { GIMP_THUMB_STATE_FAILED, "GIMP_THUMB_STATE_FAILED", "failed" }, + { GIMP_THUMB_STATE_OK, "GIMP_THUMB_STATE_OK", "ok" }, + { 0, NULL, NULL } + }; + + static GType type = 0; + + if (G_UNLIKELY (! type)) + type = g_enum_register_static ("GimpThumbState", values); + + return type; +} + + +/* Generated data ends here */ + diff --git a/libgimpthumb/gimpthumb-enums.h b/libgimpthumb/gimpthumb-enums.h new file mode 100644 index 0000000..8414673 --- /dev/null +++ b/libgimpthumb/gimpthumb-enums.h @@ -0,0 +1,118 @@ +/* LIBGIMP - The GIMP Library + * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball + * + * Thumbnail handling according to the Thumbnail Managing Standard. + * https://specifications.freedesktop.org/thumbnail-spec/ + * + * Copyright (C) 2001-2003 Sven Neumann + * Michael Natterer + * + * This library is free software: you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 3 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see + * . + */ + +#ifndef __GIMP_THUMB_ENUMS_H__ +#define __GIMP_THUMB_ENUMS_H__ + +G_BEGIN_DECLS + + +/** + * SECTION: gimpthumb-enums + * @title: GimpThumb-enums + * @short_description: Enumerations used by libgimpthumb + * + * Enumerations used by libgimpthumb + **/ + + +/** + * GimpThumbFileType: + * @GIMP_THUMB_FILE_TYPE_NONE: file does not exist + * @GIMP_THUMB_FILE_TYPE_REGULAR: a regular file + * @GIMP_THUMB_FILE_TYPE_FOLDER: a directory + * @GIMP_THUMB_FILE_TYPE_SPECIAL: a special file (device node, fifo, socket, ...) + * + * File types as returned by gimp_thumb_file_test(). + **/ +#define GIMP_TYPE_THUMB_FILE_TYPE (gimp_thumb_file_type_get_type ()) + +GType gimp_thumb_file_type_get_type (void) G_GNUC_CONST; + +typedef enum +{ + GIMP_THUMB_FILE_TYPE_NONE, + GIMP_THUMB_FILE_TYPE_REGULAR, + GIMP_THUMB_FILE_TYPE_FOLDER, + GIMP_THUMB_FILE_TYPE_SPECIAL +} GimpThumbFileType; + + +/** + * GimpThumbSize: + * @GIMP_THUMB_SIZE_FAIL: special size used to indicate a thumbnail + * creation failure + * @GIMP_THUMB_SIZE_NORMAL: normal thumbnail size (128 pixels) + * @GIMP_THUMB_SIZE_LARGE: large thumbnail size (256 pixels) + * + * Possible thumbnail sizes as defined by the Thumbnail Managing + * Standard. + **/ +#define GIMP_TYPE_THUMB_SIZE (gimp_thumb_size_get_type ()) + +GType gimp_thumb_size_get_type (void) G_GNUC_CONST; + +typedef enum +{ + GIMP_THUMB_SIZE_FAIL = 0, + GIMP_THUMB_SIZE_NORMAL = 128, + GIMP_THUMB_SIZE_LARGE = 256 +} GimpThumbSize; + + +/** + * GimpThumbState: + * @GIMP_THUMB_STATE_UNKNOWN: nothing is known about the file/thumbnail + * @GIMP_THUMB_STATE_REMOTE: the file is on a remote file system + * @GIMP_THUMB_STATE_FOLDER: the file is a directory + * @GIMP_THUMB_STATE_SPECIAL: the file is a special file + * @GIMP_THUMB_STATE_NOT_FOUND: the file/thumbnail doesn't exist + * @GIMP_THUMB_STATE_EXISTS: the file/thumbnail exists + * @GIMP_THUMB_STATE_OLD: the thumbnail may be outdated + * @GIMP_THUMB_STATE_FAILED: the thumbnail couldn't be created + * @GIMP_THUMB_STATE_OK: the thumbnail exists and matches the image + * + * Possible image and thumbnail file states used by libgimpthumb. + **/ +#define GIMP_TYPE_THUMB_STATE (gimp_thumb_state_get_type ()) + +GType gimp_thumb_state_get_type (void) G_GNUC_CONST; + +typedef enum +{ + GIMP_THUMB_STATE_UNKNOWN, + GIMP_THUMB_STATE_REMOTE, + GIMP_THUMB_STATE_FOLDER, + GIMP_THUMB_STATE_SPECIAL, + GIMP_THUMB_STATE_NOT_FOUND, + GIMP_THUMB_STATE_EXISTS, + GIMP_THUMB_STATE_OLD, + GIMP_THUMB_STATE_FAILED, + GIMP_THUMB_STATE_OK +} GimpThumbState; + + +G_END_DECLS + +#endif /* __GIMP_THUMB_ENUMS_H__ */ diff --git a/libgimpthumb/gimpthumb-error.c b/libgimpthumb/gimpthumb-error.c new file mode 100644 index 0000000..f4ab620 --- /dev/null +++ b/libgimpthumb/gimpthumb-error.c @@ -0,0 +1,52 @@ +/* LIBGIMP - The GIMP Library + * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball + * + * Thumbnail handling according to the Thumbnail Managing Standard. + * https://specifications.freedesktop.org/thumbnail-spec/ + * + * Copyright (C) 2001-2003 Sven Neumann + * Michael Natterer + * + * This library is free software: you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 3 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see + * . + */ + +#include "config.h" + +#include + +#include "gimpthumb-error.h" + + +/** + * SECTION: gimpthumb-error + * @title: GimpThumb-error + * @short_description: Error codes used by libgimpthumb + * + * Error codes used by libgimpthumb + **/ + + +/** + * gimp_thumb_error_quark: + * + * This function is never called directly. Use GIMP_THUMB_ERROR() instead. + * + * Return value: the #GQuark that defines the GimpThumb error domain. + **/ +GQuark +gimp_thumb_error_quark (void) +{ + return g_quark_from_static_string ("gimp-thumb-error-quark"); +} diff --git a/libgimpthumb/gimpthumb-error.h b/libgimpthumb/gimpthumb-error.h new file mode 100644 index 0000000..9dec6e8 --- /dev/null +++ b/libgimpthumb/gimpthumb-error.h @@ -0,0 +1,64 @@ +/* LIBGIMP - The GIMP Library + * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball + * + * Thumbnail handling according to the Thumbnail Managing Standard. + * https://specifications.freedesktop.org/thumbnail-spec/ + * + * Copyright (C) 2001-2003 Sven Neumann + * Michael Natterer + * + * This library is free software: you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 3 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see + * . + */ + +#if !defined (__GIMP_THUMB_H_INSIDE__) && !defined (GIMP_THUMB_COMPILATION) +#error "Only can be included directly." +#endif + +#ifndef __GIMP_THUMB_ERROR_H__ +#define __GIMP_THUMB_ERROR_H__ + +G_BEGIN_DECLS + + +/** + * GimpThumbError: + * @GIMP_THUMB_ERROR_OPEN: there was a problem opening the file + * @GIMP_THUMB_ERROR_OPEN_ENOENT: the file doesn't exist + * @GIMP_THUMB_ERROR_MKDIR: there was a problem creating a directory + * + * These are the possible error codes used when a #GError is set by + * libgimpthumb. + **/ +typedef enum +{ + GIMP_THUMB_ERROR_OPEN, + GIMP_THUMB_ERROR_OPEN_ENOENT, + GIMP_THUMB_ERROR_MKDIR +} GimpThumbError; + + +/** + * GIMP_THUMB_ERROR: + * + * Identifier for the libgimpthumb error domain. + **/ +#define GIMP_THUMB_ERROR (gimp_thumb_error_quark ()) + +GQuark gimp_thumb_error_quark (void) G_GNUC_CONST; + + +G_END_DECLS + +#endif /* __GIMP_THUMB_ERROR_H__ */ diff --git a/libgimpthumb/gimpthumb-types.h b/libgimpthumb/gimpthumb-types.h new file mode 100644 index 0000000..29aa4e3 --- /dev/null +++ b/libgimpthumb/gimpthumb-types.h @@ -0,0 +1,38 @@ +/* LIBGIMP - The GIMP Library + * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball + * + * Thumbnail handling according to the Thumbnail Managing Standard. + * https://specifications.freedesktop.org/thumbnail-spec/ + * + * Copyright (C) 2001-2003 Sven Neumann + * Michael Natterer + * + * This library is free software: you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 3 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see + * . + */ + +#ifndef __GIMP_THUMB_TYPES_H__ +#define __GIMP_THUMB_TYPES_H__ + + +#include + +G_BEGIN_DECLS + +typedef struct _GimpThumbnail GimpThumbnail; + +G_END_DECLS + + +#endif /* __GIMP_THUMB_TYPES_H__ */ diff --git a/libgimpthumb/gimpthumb-utils.c b/libgimpthumb/gimpthumb-utils.c new file mode 100644 index 0000000..59dd830 --- /dev/null +++ b/libgimpthumb/gimpthumb-utils.c @@ -0,0 +1,870 @@ +/* LIBGIMP - The GIMP Library + * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball + * + * Thumbnail handling according to the Thumbnail Managing Standard. + * https://specifications.freedesktop.org/thumbnail-spec/ + * + * Copyright (C) 2001-2003 Sven Neumann + * Michael Natterer + * + * This library is free software: you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 3 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see + * . + */ + +#include "config.h" + +#include +#include +#include + +#ifdef PLATFORM_OSX +#include +#endif + +#include +#include + +#ifdef G_OS_WIN32 +#include "libgimpbase/gimpwin32-io.h" +#endif + +#include "gimpthumb-error.h" +#include "gimpthumb-types.h" +#include "gimpthumb-utils.h" + +#include "libgimp/libgimp-intl.h" + + +/** + * SECTION: gimpthumb-utils + * @title: GimpThumb-utils + * @short_description: Utility functions provided and used by libgimpthumb + * + * Utility functions provided and used by libgimpthumb + **/ + + +static gint gimp_thumb_size (GimpThumbSize size); +static gchar * gimp_thumb_png_lookup (const gchar *name, + const gchar *basedir, + GimpThumbSize *size) G_GNUC_MALLOC; +static const gchar * gimp_thumb_png_name (const gchar *uri); +static void gimp_thumb_exit (void); + + + +static gboolean gimp_thumb_initialized = FALSE; +static gint thumb_num_sizes = 0; +static gint *thumb_sizes = NULL; +static const gchar **thumb_sizenames = NULL; +static gchar *thumb_dir = NULL; +static gchar **thumb_subdirs = NULL; +static gchar *thumb_fail_subdir = NULL; + + +/** + * gimp_thumb_init: + * @creator: an ASCII string that identifies the thumbnail creator + * @thumb_basedir: an absolute path or %NULL to use the default + * + * This function initializes the thumbnail system. It must be called + * before any other functions from libgimpthumb are used. You may call + * it more than once if you want to change the @thumb_basedir but if + * you do that, you should make sure that no thread is still using the + * library. Apart from this function, libgimpthumb is multi-thread + * safe. + * + * The @creator string must be 7bit ASCII and should contain the name + * of the software that creates the thumbnails. It is used to handle + * thumbnail creation failures. See the spec for more details. + * + * Usually you will pass %NULL for @thumb_basedir. Thumbnails will + * then be stored in the user's personal thumbnail directory as + * defined in the spec. If you wish to use libgimpthumb to store + * application-specific thumbnails, you can specify a different base + * directory here. + * + * Return value: %TRUE if the library was successfully initialized. + **/ +gboolean +gimp_thumb_init (const gchar *creator, + const gchar *thumb_basedir) +{ + GEnumClass *enum_class; + GEnumValue *enum_value; + gint i; + + g_return_val_if_fail (creator != NULL, FALSE); + g_return_val_if_fail (thumb_basedir == NULL || + g_path_is_absolute (thumb_basedir), FALSE); + + if (gimp_thumb_initialized) + gimp_thumb_exit (); + + if (thumb_basedir) + { + thumb_dir = g_strdup (thumb_basedir); + } + else + { +#ifdef PLATFORM_OSX + + NSAutoreleasePool *pool; + NSArray *path; + NSString *cache_dir; + + pool = [[NSAutoreleasePool alloc] init]; + + path = NSSearchPathForDirectoriesInDomains (NSCachesDirectory, + NSUserDomainMask, YES); + cache_dir = [path objectAtIndex:0]; + + thumb_dir = g_build_filename ([cache_dir UTF8String], "org.freedesktop.thumbnails", + NULL); + + [pool drain]; + +#else + + const gchar *cache_dir = g_get_user_cache_dir (); + + if (cache_dir && g_file_test (cache_dir, G_FILE_TEST_IS_DIR)) + { + thumb_dir = g_build_filename (cache_dir, "thumbnails", NULL); + } + +#endif + + if (! thumb_dir) + { + gchar *name = g_filename_display_name (g_get_tmp_dir ()); + + g_message (_("Cannot determine a valid thumbnails directory.\n" + "Thumbnails will be stored in the folder for " + "temporary files (%s) instead."), name); + g_free (name); + + thumb_dir = g_build_filename (g_get_tmp_dir (), ".thumbnails", NULL); + } + } + + enum_class = g_type_class_ref (GIMP_TYPE_THUMB_SIZE); + + thumb_num_sizes = enum_class->n_values; + thumb_sizes = g_new (gint, thumb_num_sizes); + thumb_sizenames = g_new (const gchar *, thumb_num_sizes); + thumb_subdirs = g_new (gchar *, thumb_num_sizes); + + for (i = 0, enum_value = enum_class->values; + i < enum_class->n_values; + i++, enum_value++) + { + thumb_sizes[i] = enum_value->value; + thumb_sizenames[i] = enum_value->value_nick; + thumb_subdirs[i] = g_build_filename (thumb_dir, + enum_value->value_nick, NULL); + } + + thumb_fail_subdir = thumb_subdirs[0]; + thumb_subdirs[0] = g_build_filename (thumb_fail_subdir, creator, NULL); + + g_type_class_unref (enum_class); + + gimp_thumb_initialized = TRUE; + + return gimp_thumb_initialized; +} + +/** + * gimp_thumb_get_thumb_base_dir: + * + * Returns the base directory of thumbnails cache. + * It uses the Freedesktop Thumbnail Managing Standard on UNIX, + * "~/Library/Caches/org.freedesktop.thumbnails" on OSX, and a cache + * folder determined by glib on Windows (currently the common repository + * for temporary Internet files). + * The returned string belongs to GIMP and must not be changed nor freed. + * + * Returns: the thumbnails cache directory. + * + * Since: 2.10 + **/ +const gchar * +gimp_thumb_get_thumb_base_dir (void) +{ + g_return_val_if_fail (gimp_thumb_initialized, NULL); + + return thumb_dir; +} + +/** + * gimp_thumb_get_thumb_dir: + * @size: a GimpThumbSize + * + * Retrieve the name of the thumbnail folder for a specific size. The + * returned pointer will become invalid if gimp_thumb_init() is used + * again. It must not be changed or freed. + * + * Return value: the thumbnail directory in the encoding of the filesystem + **/ +const gchar * +gimp_thumb_get_thumb_dir (GimpThumbSize size) +{ + g_return_val_if_fail (gimp_thumb_initialized, NULL); + + size = gimp_thumb_size (size); + + return thumb_subdirs[size]; +} + +/** + * gimp_thumb_get_thumb_dir_local: + * @dirname: the basename of the dir, without the actual dirname itself + * @size: a GimpThumbSize + * + * Retrieve the name of the local thumbnail folder for a specific + * size. Unlike gimp_thumb_get_thumb_dir() the returned string is not + * constant and should be free'd when it is not any longer needed. + * + * Return value: the thumbnail directory in the encoding of the filesystem + * + * Since: 2.2 + **/ +gchar * +gimp_thumb_get_thumb_dir_local (const gchar *dirname, + GimpThumbSize size) +{ + g_return_val_if_fail (gimp_thumb_initialized, NULL); + g_return_val_if_fail (dirname != NULL, NULL); + g_return_val_if_fail (size > GIMP_THUMB_SIZE_FAIL, NULL); + + size = gimp_thumb_size (size); + + return g_build_filename (dirname, thumb_sizenames[size], NULL); +} + +/** + * gimp_thumb_ensure_thumb_dir: + * @size: a GimpThumbSize + * @error: return location for possible errors + * + * This function checks if the directory that is required to store + * thumbnails for a particular @size exist and attempts to create it + * if necessary. + * + * You shouldn't have to call this function directly since + * gimp_thumbnail_save_thumb() and gimp_thumbnail_save_failure() will + * do this for you. + * + * Return value: %TRUE is the directory exists, %FALSE if it could not + * be created + **/ +gboolean +gimp_thumb_ensure_thumb_dir (GimpThumbSize size, + GError **error) +{ + g_return_val_if_fail (gimp_thumb_initialized, FALSE); + g_return_val_if_fail (error == NULL || *error == NULL, FALSE); + + size = gimp_thumb_size (size); + + if (g_file_test (thumb_subdirs[size], G_FILE_TEST_IS_DIR)) + return TRUE; + + if (g_file_test (thumb_dir, G_FILE_TEST_IS_DIR) || + (g_mkdir_with_parents (thumb_dir, S_IRUSR | S_IWUSR | S_IXUSR) == 0)) + { + if (size == 0) + g_mkdir_with_parents (thumb_fail_subdir, S_IRUSR | S_IWUSR | S_IXUSR); + + g_mkdir_with_parents (thumb_subdirs[size], S_IRUSR | S_IWUSR | S_IXUSR); + } + + if (g_file_test (thumb_subdirs[size], G_FILE_TEST_IS_DIR)) + return TRUE; + + g_set_error (error, + GIMP_THUMB_ERROR, GIMP_THUMB_ERROR_MKDIR, + _("Failed to create thumbnail folder '%s'."), + thumb_subdirs[size]); + + return FALSE; +} + +/** + * gimp_thumb_ensure_thumb_dir_local: + * @dirname: the basename of the dir, without the actual dirname itself + * @size: a GimpThumbSize + * @error: return location for possible errors + * + * This function checks if the directory that is required to store + * local thumbnails for a particular @size exist and attempts to + * create it if necessary. + * + * You shouldn't have to call this function directly since + * gimp_thumbnail_save_thumb_local() will do this for you. + * + * Return value: %TRUE is the directory exists, %FALSE if it could not + * be created + * + * Since: 2.2 + **/ +gboolean +gimp_thumb_ensure_thumb_dir_local (const gchar *dirname, + GimpThumbSize size, + GError **error) +{ + gchar *basedir; + gchar *subdir; + + g_return_val_if_fail (gimp_thumb_initialized, FALSE); + g_return_val_if_fail (dirname != NULL, FALSE); + g_return_val_if_fail (g_path_is_absolute (dirname), FALSE); + g_return_val_if_fail (size > GIMP_THUMB_SIZE_FAIL, FALSE); + g_return_val_if_fail (error == NULL || *error == NULL, FALSE); + + size = gimp_thumb_size (size); + + subdir = g_build_filename (dirname, + ".thumblocal", thumb_sizenames[size], + NULL); + + if (g_file_test (subdir, G_FILE_TEST_IS_DIR)) + { + g_free (subdir); + return TRUE; + } + + basedir = g_build_filename (dirname, ".thumblocal", NULL); + + if (g_file_test (basedir, G_FILE_TEST_IS_DIR) || + (g_mkdir (thumb_dir, S_IRUSR | S_IWUSR | S_IXUSR) == 0)) + { + g_mkdir (subdir, S_IRUSR | S_IWUSR | S_IXUSR); + } + + g_free (basedir); + + if (g_file_test (subdir, G_FILE_TEST_IS_DIR)) + { + g_free (subdir); + return TRUE; + } + + g_set_error (error, + GIMP_THUMB_ERROR, GIMP_THUMB_ERROR_MKDIR, + _("Failed to create thumbnail folder '%s'."), + subdir); + g_free (subdir); + + return FALSE; +} + +/** + * gimp_thumb_name_from_uri: + * @uri: an escaped URI + * @size: a #GimpThumbSize + * + * Creates the name of the thumbnail file of the specified @size that + * belongs to an image file located at the given @uri. + * + * Return value: a newly allocated filename in the encoding of the + * filesystem or %NULL if @uri points to the user's + * thumbnail repository. + **/ +gchar * +gimp_thumb_name_from_uri (const gchar *uri, + GimpThumbSize size) +{ + g_return_val_if_fail (gimp_thumb_initialized, NULL); + g_return_val_if_fail (uri != NULL, NULL); + + if (strstr (uri, thumb_dir)) + return NULL; + + size = gimp_thumb_size (size); + + return g_build_filename (thumb_subdirs[size], + gimp_thumb_png_name (uri), + NULL); +} + +/** + * gimp_thumb_name_from_uri_local: + * @uri: an escaped URI + * @size: a #GimpThumbSize + * + * Creates the name of a local thumbnail file of the specified @size + * that belongs to an image file located at the given @uri. Local + * thumbnails have been introduced with version 0.7 of the spec. + * + * Return value: a newly allocated filename in the encoding of the + * filesystem or %NULL if @uri is a remote file or + * points to the user's thumbnail repository. + * + * Since: 2.2 + **/ +gchar * +gimp_thumb_name_from_uri_local (const gchar *uri, + GimpThumbSize size) +{ + gchar *filename; + gchar *result = NULL; + + g_return_val_if_fail (gimp_thumb_initialized, NULL); + g_return_val_if_fail (uri != NULL, NULL); + g_return_val_if_fail (size > GIMP_THUMB_SIZE_FAIL, NULL); + + if (strstr (uri, thumb_dir)) + return NULL; + + filename = _gimp_thumb_filename_from_uri (uri); + + if (filename) + { + const gchar *baseuri = strrchr (uri, '/'); + + if (baseuri && baseuri[0] && baseuri[1]) + { + gchar *dirname = g_path_get_dirname (filename); + gint i = gimp_thumb_size (size); + + result = g_build_filename (dirname, + ".thumblocal", thumb_sizenames[i], + gimp_thumb_png_name (uri), + NULL); + + g_free (dirname); + } + + g_free (filename); + } + + return result; +} + +/** + * gimp_thumb_find_thumb: + * @uri: an escaped URI + * @size: pointer to a #GimpThumbSize + * + * This function attempts to locate a thumbnail for the given + * @uri. First it tries the size that is stored at @size. If no + * thumbnail of that size is found, it will look for a larger + * thumbnail, then falling back to a smaller size. + * + * If the user's thumbnail repository doesn't provide a thumbnail but + * a local thumbnail repository exists for the folder the image is + * located in, the same search is done among the local thumbnails (if + * there are any). + * + * If a thumbnail is found, it's size is written to the variable + * pointer to by @size and the file location is returned. + * + * Return value: a newly allocated string in the encoding of the + * filesystem or %NULL if no thumbnail for @uri was found + **/ +gchar * +gimp_thumb_find_thumb (const gchar *uri, + GimpThumbSize *size) +{ + gchar *result; + + g_return_val_if_fail (gimp_thumb_initialized, NULL); + g_return_val_if_fail (uri != NULL, NULL); + g_return_val_if_fail (size != NULL, NULL); + g_return_val_if_fail (*size > GIMP_THUMB_SIZE_FAIL, NULL); + + result = gimp_thumb_png_lookup (gimp_thumb_png_name (uri), NULL, size); + + if (! result) + { + gchar *filename = _gimp_thumb_filename_from_uri (uri); + + if (filename) + { + const gchar *baseuri = strrchr (uri, '/'); + + if (baseuri && baseuri[0] && baseuri[1]) + { + gchar *dirname = g_path_get_dirname (filename); + + result = gimp_thumb_png_lookup (gimp_thumb_png_name (baseuri + 1), + dirname, size); + + g_free (dirname); + } + + g_free (filename); + } + } + + return result; +} + +/** + * gimp_thumb_file_test: + * @filename: a filename in the encoding of the filesystem + * @mtime: return location for modification time + * @size: return location for file size + * @err_no: return location for system "errno" + * + * This is a convenience and portability wrapper around stat(). It + * checks if the given @filename exists and returns modification time + * and file size in 64bit integer values. + * + * Return value: The type of the file, or #GIMP_THUMB_FILE_TYPE_NONE if + * the file doesn't exist. + **/ +GimpThumbFileType +gimp_thumb_file_test (const gchar *filename, + gint64 *mtime, + gint64 *size, + gint *err_no) +{ + GimpThumbFileType type = GIMP_THUMB_FILE_TYPE_NONE; + GFile *file; + GFileInfo *info; + + g_return_val_if_fail (filename != NULL, FALSE); + + file = g_file_new_for_path (filename); + + info = g_file_query_info (file, + G_FILE_ATTRIBUTE_STANDARD_TYPE "," + G_FILE_ATTRIBUTE_STANDARD_SIZE "," + G_FILE_ATTRIBUTE_TIME_MODIFIED, + G_FILE_QUERY_INFO_NONE, + NULL, NULL); + + if (info) + { + if (mtime) + *mtime = + g_file_info_get_attribute_uint64 (info, + G_FILE_ATTRIBUTE_TIME_MODIFIED); + + if (size) + *size = g_file_info_get_size (info); + + if (err_no) + *err_no = 0; + + switch (g_file_info_get_attribute_uint32 (info, + G_FILE_ATTRIBUTE_STANDARD_TYPE)) + { + case G_FILE_TYPE_REGULAR: + type = GIMP_THUMB_FILE_TYPE_REGULAR; + break; + + case G_FILE_TYPE_DIRECTORY: + type = GIMP_THUMB_FILE_TYPE_FOLDER; + break; + + default: + type = GIMP_THUMB_FILE_TYPE_SPECIAL; + break; + } + + g_object_unref (info); + } + else + { + if (mtime) *mtime = 0; + if (size) *size = 0; + if (err_no) *err_no = ENOENT; + } + + g_object_unref (file); + + return type; +} + +/** + * gimp_thumbs_delete_for_uri: + * @uri: an escaped URI + * + * Deletes all thumbnails for the image file specified by @uri from the + * user's thumbnail repository. + * + * Since: 2.2 + **/ +void +gimp_thumbs_delete_for_uri (const gchar *uri) +{ + gint i; + + g_return_if_fail (gimp_thumb_initialized); + g_return_if_fail (uri != NULL); + + for (i = 0; i < thumb_num_sizes; i++) + { + gchar *filename = gimp_thumb_name_from_uri (uri, thumb_sizes[i]); + + if (filename) + { + g_unlink (filename); + g_free (filename); + } + } +} + +/** + * gimp_thumbs_delete_for_uri_local: + * @uri: an escaped URI + * + * Deletes all thumbnails for the image file specified by @uri from + * the local thumbnail repository. + * + * Since: 2.2 + **/ +void +gimp_thumbs_delete_for_uri_local (const gchar *uri) +{ + gint i; + + g_return_if_fail (gimp_thumb_initialized); + g_return_if_fail (uri != NULL); + + for (i = 0; i < thumb_num_sizes; i++) + { + gchar *filename = gimp_thumb_name_from_uri_local (uri, thumb_sizes[i]); + + if (filename) + { + g_unlink (filename); + g_free (filename); + } + } +} + +void +_gimp_thumbs_delete_others (const gchar *uri, + GimpThumbSize size) +{ + gint i; + + g_return_if_fail (gimp_thumb_initialized); + g_return_if_fail (uri != NULL); + + size = gimp_thumb_size (size); + + for (i = 0; i < thumb_num_sizes; i++) + { + gchar *filename; + + if (i == size) + continue; + + filename = gimp_thumb_name_from_uri (uri, thumb_sizes[i]); + if (filename) + { + g_unlink (filename); + g_free (filename); + } + } +} + +gchar * +_gimp_thumb_filename_from_uri (const gchar *uri) +{ + gchar *filename; + gchar *hostname; + + g_return_val_if_fail (uri != NULL, NULL); + + filename = g_filename_from_uri (uri, &hostname, NULL); + + if (!filename) + return NULL; + + if (hostname) + { + /* we have a file: URI with a hostname */ + +#ifdef G_OS_WIN32 + /* on Win32, create a valid UNC path and use it as the filename */ + gchar *tmp = g_build_filename ("//", hostname, filename, NULL); + + g_free (filename); + filename = tmp; +#else + /* otherwise return NULL, caller should use URI then */ + g_free (filename); + filename = NULL; +#endif + + g_free (hostname); + } + + return filename; +} + +static void +gimp_thumb_exit (void) +{ + gint i; + + g_free (thumb_dir); + g_free (thumb_sizes); + g_free (thumb_sizenames); + for (i = 0; i < thumb_num_sizes; i++) + g_free (thumb_subdirs[i]); + g_free (thumb_subdirs); + g_free (thumb_fail_subdir); + + thumb_num_sizes = 0; + thumb_sizes = NULL; + thumb_sizenames = NULL; + thumb_dir = NULL; + thumb_subdirs = NULL; + thumb_fail_subdir = NULL; + gimp_thumb_initialized = FALSE; +} + +static gint +gimp_thumb_size (GimpThumbSize size) +{ + gint i = 0; + + if (size > GIMP_THUMB_SIZE_FAIL) + { + for (i = 1; + i < thumb_num_sizes && thumb_sizes[i] < size; + i++) + /* nothing */; + + if (i == thumb_num_sizes) + i--; + } + + return i; +} + +static gchar * +gimp_thumb_png_lookup (const gchar *name, + const gchar *basedir, + GimpThumbSize *size) +{ + gchar *thumb_name = NULL; + gchar **subdirs = NULL; + gint i, n; + + if (basedir) + { + gchar *dir = g_build_filename (basedir, ".thumblocal", NULL); + + if (g_file_test (basedir, G_FILE_TEST_IS_DIR)) + { + gint i; + + subdirs = g_new (gchar *, thumb_num_sizes); + + subdirs[0] = NULL; /* GIMP_THUMB_SIZE_FAIL */ + + for (i = 1; i < thumb_num_sizes; i++) + subdirs[i] = g_build_filename (dir, thumb_sizenames[i], NULL); + } + + g_free (dir); + } + else + { + subdirs = thumb_subdirs; + } + + if (! subdirs) + return NULL; + + i = n = gimp_thumb_size (*size); + + for (; i < thumb_num_sizes; i++) + { + if (! subdirs[i]) + continue; + + thumb_name = g_build_filename (subdirs[i], name, NULL); + + if (gimp_thumb_file_test (thumb_name, + NULL, NULL, + NULL) == GIMP_THUMB_FILE_TYPE_REGULAR) + { + *size = thumb_sizes[i]; + goto finish; + } + + g_free (thumb_name); + } + + for (i = n - 1; i >= 0; i--) + { + if (! subdirs[i]) + continue; + + thumb_name = g_build_filename (subdirs[i], name, NULL); + + if (gimp_thumb_file_test (thumb_name, + NULL, NULL, + NULL) == GIMP_THUMB_FILE_TYPE_REGULAR) + { + *size = thumb_sizes[i]; + goto finish; + } + + g_free (thumb_name); + } + + thumb_name = NULL; + + finish: + if (basedir) + { + for (i = 0; i < thumb_num_sizes; i++) + g_free (subdirs[i]); + g_free (subdirs); + } + + return thumb_name; +} + +static const gchar * +gimp_thumb_png_name (const gchar *uri) +{ + static gchar name[40]; + + GChecksum *checksum; + guchar digest[16]; + gsize len = sizeof (digest); + gsize i; + + checksum = g_checksum_new (G_CHECKSUM_MD5); + g_checksum_update (checksum, (const guchar *) uri, -1); + g_checksum_get_digest (checksum, digest, &len); + g_checksum_free (checksum); + + for (i = 0; i < len; i++) + { + guchar n; + + n = (digest[i] >> 4) & 0xF; + name[i * 2] = (n > 9) ? 'a' + n - 10 : '0' + n; + + n = digest[i] & 0xF; + name[i * 2 + 1] = (n > 9) ? 'a' + n - 10 : '0' + n; + } + + strncpy (name + 32, ".png", 5); + + return (const gchar *) name; +} diff --git a/libgimpthumb/gimpthumb-utils.h b/libgimpthumb/gimpthumb-utils.h new file mode 100644 index 0000000..7346e1a --- /dev/null +++ b/libgimpthumb/gimpthumb-utils.h @@ -0,0 +1,73 @@ +/* LIBGIMP - The GIMP Library + * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball + * + * Thumbnail handling according to the Thumbnail Managing Standard. + * https://specifications.freedesktop.org/thumbnail-spec/ + * + * Copyright (C) 2001-2003 Sven Neumann + * Michael Natterer + * + * This library is free software: you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 3 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see + * . + */ + +#if !defined (__GIMP_THUMB_H_INSIDE__) && !defined (GIMP_THUMB_COMPILATION) +#error "Only can be included directly." +#endif + +#ifndef __GIMP_THUMB_UTILS_H__ +#define __GIMP_THUMB_UTILS_H__ + +G_BEGIN_DECLS + + +gboolean gimp_thumb_init (const gchar *creator, + const gchar *thumb_basedir); + +const gchar * gimp_thumb_get_thumb_base_dir (void); + +gchar * gimp_thumb_find_thumb (const gchar *uri, + GimpThumbSize *size) G_GNUC_MALLOC; + +GimpThumbFileType gimp_thumb_file_test (const gchar *filename, + gint64 *mtime, + gint64 *size, + gint *err_no); + +gchar * gimp_thumb_name_from_uri (const gchar *uri, + GimpThumbSize size) G_GNUC_MALLOC; +const gchar * gimp_thumb_get_thumb_dir (GimpThumbSize size); +gboolean gimp_thumb_ensure_thumb_dir (GimpThumbSize size, + GError **error); +void gimp_thumbs_delete_for_uri (const gchar *uri); + +gchar * gimp_thumb_name_from_uri_local (const gchar *uri, + GimpThumbSize size) G_GNUC_MALLOC; +gchar * gimp_thumb_get_thumb_dir_local (const gchar *dirname, + GimpThumbSize size) G_GNUC_MALLOC; +gboolean gimp_thumb_ensure_thumb_dir_local (const gchar *dirname, + GimpThumbSize size, + GError **error); +void gimp_thumbs_delete_for_uri_local (const gchar *uri); + + +/* for internal use only */ +G_GNUC_INTERNAL void _gimp_thumbs_delete_others (const gchar *uri, + GimpThumbSize size); +G_GNUC_INTERNAL gchar * _gimp_thumb_filename_from_uri (const gchar *uri); + + +G_END_DECLS + +#endif /* __GIMP_THUMB_UTILS_H__ */ diff --git a/libgimpthumb/gimpthumb.def b/libgimpthumb/gimpthumb.def new file mode 100644 index 0000000..db8c44d --- /dev/null +++ b/libgimpthumb/gimpthumb.def @@ -0,0 +1,32 @@ +EXPORTS + gimp_thumb_ensure_thumb_dir + gimp_thumb_ensure_thumb_dir_local + gimp_thumb_error_quark + gimp_thumb_file_test + gimp_thumb_file_type_get_type + gimp_thumb_find_thumb + gimp_thumb_get_thumb_base_dir + gimp_thumb_get_thumb_dir + gimp_thumb_get_thumb_dir_local + gimp_thumb_init + gimp_thumb_name_from_uri + gimp_thumb_name_from_uri_local + gimp_thumb_size_get_type + gimp_thumb_state_get_type + gimp_thumbnail_check_thumb + gimp_thumbnail_delete_failure + gimp_thumbnail_delete_others + gimp_thumbnail_get_type + gimp_thumbnail_has_failed + gimp_thumbnail_load_thumb + gimp_thumbnail_new + gimp_thumbnail_peek_image + gimp_thumbnail_peek_thumb + gimp_thumbnail_save_failure + gimp_thumbnail_save_thumb + gimp_thumbnail_save_thumb_local + gimp_thumbnail_set_filename + gimp_thumbnail_set_from_thumb + gimp_thumbnail_set_uri + gimp_thumbs_delete_for_uri + gimp_thumbs_delete_for_uri_local diff --git a/libgimpthumb/gimpthumb.h b/libgimpthumb/gimpthumb.h new file mode 100644 index 0000000..97a038a --- /dev/null +++ b/libgimpthumb/gimpthumb.h @@ -0,0 +1,38 @@ +/* LIBGIMP - The GIMP Library + * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball + * + * Thumbnail handling according to the Thumbnail Managing Standard. + * https://specifications.freedesktop.org/thumbnail-spec/ + * + * Copyright (C) 2001-2003 Sven Neumann + * Michael Natterer + * + * This library is free software: you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 3 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see + * . + */ + +#ifndef __GIMP_THUMB_H__ +#define __GIMP_THUMB_H__ + +#define __GIMP_THUMB_H_INSIDE__ + +#include + +#include +#include +#include + +#undef __GIMP_THUMB_H_INSIDE__ + +#endif /* __GIMP_THUMB_H__ */ diff --git a/libgimpthumb/gimpthumbnail.c b/libgimpthumb/gimpthumbnail.c new file mode 100644 index 0000000..e7f9d3d --- /dev/null +++ b/libgimpthumb/gimpthumbnail.c @@ -0,0 +1,1400 @@ +/* LIBGIMP - The GIMP Library + * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball + * + * Thumbnail handling according to the Thumbnail Managing Standard. + * https://specifications.freedesktop.org/thumbnail-spec/ + * + * Copyright (C) 2001-2004 Sven Neumann + * Michael Natterer + * + * This library is free software: you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 3 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see + * . + */ + +#include "config.h" + +#include +#include +#include + +#ifdef HAVE_UNISTD_H +#include +#endif + +#include +#include + +#include "libgimpbase/gimpparam.h" + +#ifdef G_OS_WIN32 +#include "libgimpbase/gimpwin32-io.h" +#include +#define _getpid getpid +#endif + +#include "gimpthumb-types.h" +#include "gimpthumb-error.h" +#include "gimpthumb-utils.h" +#include "gimpthumbnail.h" + +#include "libgimp/libgimp-intl.h" + + +/** + * SECTION: gimpthumbnail + * @title: GimpThumbnail + * @short_description: The GimpThumbnail object + * + * The GimpThumbnail object + **/ + + +/* #define GIMP_THUMB_DEBUG */ + + +#if defined (GIMP_THUMB_DEBUG) && defined (__GNUC__) +#define GIMP_THUMB_DEBUG_CALL(t) \ + g_printerr ("%s: %s\n", \ + __FUNCTION__, t->image_uri ? t->image_uri : "(null)") +#else +#define GIMP_THUMB_DEBUG_CALL(t) ((void)(0)) +#endif + + +#define TAG_DESCRIPTION "tEXt::Description" +#define TAG_SOFTWARE "tEXt::Software" +#define TAG_THUMB_URI "tEXt::Thumb::URI" +#define TAG_THUMB_MTIME "tEXt::Thumb::MTime" +#define TAG_THUMB_FILESIZE "tEXt::Thumb::Size" +#define TAG_THUMB_MIMETYPE "tEXt::Thumb::Mimetype" +#define TAG_THUMB_IMAGE_WIDTH "tEXt::Thumb::Image::Width" +#define TAG_THUMB_IMAGE_HEIGHT "tEXt::Thumb::Image::Height" +#define TAG_THUMB_GIMP_TYPE "tEXt::Thumb::X-GIMP::Type" +#define TAG_THUMB_GIMP_LAYERS "tEXt::Thumb::X-GIMP::Layers" + + +enum +{ + PROP_0, + PROP_IMAGE_STATE, + PROP_IMAGE_URI, + PROP_IMAGE_MTIME, + PROP_IMAGE_FILESIZE, + PROP_IMAGE_MIMETYPE, + PROP_IMAGE_WIDTH, + PROP_IMAGE_HEIGHT, + PROP_IMAGE_TYPE, + PROP_IMAGE_NUM_LAYERS, + PROP_THUMB_STATE +}; + + +static void gimp_thumbnail_finalize (GObject *object); +static void gimp_thumbnail_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec); +static void gimp_thumbnail_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec); +static void gimp_thumbnail_reset_info (GimpThumbnail *thumbnail); + +static void gimp_thumbnail_update_image (GimpThumbnail *thumbnail); +static void gimp_thumbnail_update_thumb (GimpThumbnail *thumbnail, + GimpThumbSize size); + +static gboolean gimp_thumbnail_save (GimpThumbnail *thumbnail, + GimpThumbSize size, + const gchar *filename, + GdkPixbuf *pixbuf, + const gchar *software, + GError **error); +#ifdef GIMP_THUMB_DEBUG +static void gimp_thumbnail_debug_notify (GObject *object, + GParamSpec *pspec); +#endif + + +G_DEFINE_TYPE (GimpThumbnail, gimp_thumbnail, G_TYPE_OBJECT) + +#define parent_class gimp_thumbnail_parent_class + + +static void +gimp_thumbnail_class_init (GimpThumbnailClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + + object_class->finalize = gimp_thumbnail_finalize; + object_class->set_property = gimp_thumbnail_set_property; + object_class->get_property = gimp_thumbnail_get_property; + + g_object_class_install_property (object_class, + PROP_IMAGE_STATE, + g_param_spec_enum ("image-state", NULL, + "State of the image associated to the thumbnail object", + GIMP_TYPE_THUMB_STATE, + GIMP_THUMB_STATE_UNKNOWN, + GIMP_PARAM_READWRITE)); + g_object_class_install_property (object_class, + PROP_IMAGE_URI, + g_param_spec_string ("image-uri", NULL, + "URI of the image file", + NULL, + GIMP_PARAM_READWRITE)); + g_object_class_install_property (object_class, + PROP_IMAGE_MTIME, + g_param_spec_int64 ("image-mtime", NULL, + "Modification time of the image file in seconds since the Epoch", + G_MININT64, G_MAXINT64, 0, + GIMP_PARAM_READWRITE)); + g_object_class_install_property (object_class, + PROP_IMAGE_FILESIZE, + g_param_spec_int64 ("image-filesize", NULL, + "Size of the image file in bytes", + 0, G_MAXINT64, 0, + GIMP_PARAM_READWRITE)); + /** + * GimpThumbnail::image-mimetype: + * + * Image mimetype + * + * Since: 2.2 + **/ + g_object_class_install_property (object_class, + PROP_IMAGE_MIMETYPE, + g_param_spec_string ("image-mimetype", NULL, + "Image mimetype", + NULL, + GIMP_PARAM_READWRITE)); + g_object_class_install_property (object_class, + PROP_IMAGE_WIDTH, + g_param_spec_int ("image-width", NULL, + "Width of the image in pixels", + 0, G_MAXINT, 0, + GIMP_PARAM_READWRITE)); + g_object_class_install_property (object_class, + PROP_IMAGE_HEIGHT, + g_param_spec_int ("image-height", NULL, + "Height of the image in pixels", + 0, G_MAXINT, 0, + GIMP_PARAM_READWRITE)); + g_object_class_install_property (object_class, + PROP_IMAGE_TYPE, + g_param_spec_string ("image-type", NULL, + "String describing the type of the image format", + NULL, + GIMP_PARAM_READWRITE)); + g_object_class_install_property (object_class, + PROP_IMAGE_NUM_LAYERS, + g_param_spec_int ("image-num-layers", NULL, + "The number of layers in the image", + 0, G_MAXINT, 0, + GIMP_PARAM_READWRITE)); + g_object_class_install_property (object_class, + PROP_THUMB_STATE, + g_param_spec_enum ("thumb-state", NULL, + "State of the thumbnail file", + GIMP_TYPE_THUMB_STATE, + GIMP_THUMB_STATE_UNKNOWN, + GIMP_PARAM_READWRITE)); +} + +static void +gimp_thumbnail_init (GimpThumbnail *thumbnail) +{ + thumbnail->image_state = GIMP_THUMB_STATE_UNKNOWN; + thumbnail->image_uri = NULL; + thumbnail->image_filename = NULL; + thumbnail->image_mtime = 0; + thumbnail->image_filesize = 0; + thumbnail->image_mimetype = NULL; + thumbnail->image_width = 0; + thumbnail->image_height = 0; + thumbnail->image_type = NULL; + thumbnail->image_num_layers = 0; + + thumbnail->thumb_state = GIMP_THUMB_STATE_UNKNOWN; + thumbnail->thumb_size = -1; + thumbnail->thumb_filename = NULL; + thumbnail->thumb_mtime = 0; + thumbnail->thumb_filesize = 0; + +#ifdef GIMP_THUMB_DEBUG + g_signal_connect (thumbnail, "notify", + G_CALLBACK (gimp_thumbnail_debug_notify), + NULL); +#endif +} + +static void +gimp_thumbnail_finalize (GObject *object) +{ + GimpThumbnail *thumbnail = GIMP_THUMBNAIL (object); + + g_clear_pointer (&thumbnail->image_uri, g_free); + g_clear_pointer (&thumbnail->image_filename, g_free); + g_clear_pointer (&thumbnail->image_mimetype, g_free); + g_clear_pointer (&thumbnail->image_type, g_free); + g_clear_pointer (&thumbnail->thumb_filename, g_free); + + G_OBJECT_CLASS (parent_class)->finalize (object); +} + +static void +gimp_thumbnail_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec) +{ + GimpThumbnail *thumbnail = GIMP_THUMBNAIL (object); + + switch (property_id) + { + case PROP_IMAGE_STATE: + thumbnail->image_state = g_value_get_enum (value); + break; + case PROP_IMAGE_URI: + gimp_thumbnail_set_uri (GIMP_THUMBNAIL (object), + g_value_get_string (value)); + break; + case PROP_IMAGE_MTIME: + thumbnail->image_mtime = g_value_get_int64 (value); + break; + case PROP_IMAGE_FILESIZE: + thumbnail->image_filesize = g_value_get_int64 (value); + break; + case PROP_IMAGE_MIMETYPE: + g_free (thumbnail->image_mimetype); + thumbnail->image_mimetype = g_value_dup_string (value); + break; + case PROP_IMAGE_WIDTH: + thumbnail->image_width = g_value_get_int (value); + break; + case PROP_IMAGE_HEIGHT: + thumbnail->image_height = g_value_get_int (value); + break; + case PROP_IMAGE_TYPE: + g_free (thumbnail->image_type); + thumbnail->image_type = g_value_dup_string (value); + break; + case PROP_IMAGE_NUM_LAYERS: + thumbnail->image_num_layers = g_value_get_int (value); + break; + case PROP_THUMB_STATE: + thumbnail->thumb_state = g_value_get_enum (value); + break; + + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +static void +gimp_thumbnail_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec) +{ + GimpThumbnail *thumbnail = GIMP_THUMBNAIL (object); + + switch (property_id) + { + case PROP_IMAGE_STATE: + g_value_set_enum (value, thumbnail->image_state); + break; + case PROP_IMAGE_URI: + g_value_set_string (value, thumbnail->image_uri); + break; + case PROP_IMAGE_MTIME: + g_value_set_int64 (value, thumbnail->image_mtime); + break; + case PROP_IMAGE_FILESIZE: + g_value_set_int64 (value, thumbnail->image_filesize); + break; + case PROP_IMAGE_MIMETYPE: + g_value_set_string (value, thumbnail->image_mimetype); + break; + case PROP_IMAGE_WIDTH: + g_value_set_int (value, thumbnail->image_width); + break; + case PROP_IMAGE_HEIGHT: + g_value_set_int (value, thumbnail->image_height); + break; + case PROP_IMAGE_TYPE: + g_value_set_string (value, thumbnail->image_type); + break; + case PROP_IMAGE_NUM_LAYERS: + g_value_set_int (value, thumbnail->image_num_layers); + break; + case PROP_THUMB_STATE: + g_value_set_enum (value, thumbnail->thumb_state); + break; + + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +/** + * gimp_thumbnail_new: + * + * Creates a new #GimpThumbnail object. + * + * Return value: a newly allocated GimpThumbnail object + **/ +GimpThumbnail * +gimp_thumbnail_new (void) +{ + return g_object_new (GIMP_TYPE_THUMBNAIL, NULL); +} + +/** + * gimp_thumbnail_set_uri: + * @thumbnail: a #GimpThumbnail object + * @uri: an escaped URI + * + * Sets the location of the image file associated with the #thumbnail. + * + * All information stored in the #GimpThumbnail is reset. + **/ +void +gimp_thumbnail_set_uri (GimpThumbnail *thumbnail, + const gchar *uri) +{ + g_return_if_fail (GIMP_IS_THUMBNAIL (thumbnail)); + + GIMP_THUMB_DEBUG_CALL (thumbnail); + + if (thumbnail->image_uri) + g_free (thumbnail->image_uri); + + thumbnail->image_uri = g_strdup (uri); + + g_clear_pointer (&thumbnail->image_filename, g_free); + g_clear_pointer (&thumbnail->thumb_filename, g_free); + + thumbnail->thumb_size = -1; + thumbnail->thumb_filesize = 0; + thumbnail->thumb_mtime = 0; + + g_object_set (thumbnail, + "image-state", GIMP_THUMB_STATE_UNKNOWN, + "image-filesize", (gint64) 0, + "image-mtime", (gint64) 0, + "image-mimetype", NULL, + "image-width", 0, + "image-height", 0, + "image-type", NULL, + "image-num-layers", 0, + "thumb-state", GIMP_THUMB_STATE_UNKNOWN, + NULL); +} + +/** + * gimp_thumbnail_set_filename: + * @thumbnail: a #GimpThumbnail object + * @filename: a local filename in the encoding of the filesystem + * @error: return location for possible errors + * + * Sets the location of the image file associated with the #thumbnail. + * + * Return value: %TRUE if the filename was successfully set, + * %FALSE otherwise + **/ +gboolean +gimp_thumbnail_set_filename (GimpThumbnail *thumbnail, + const gchar *filename, + GError **error) +{ + gchar *uri = NULL; + + g_return_val_if_fail (GIMP_IS_THUMBNAIL (thumbnail), FALSE); + g_return_val_if_fail (error == NULL || *error == NULL, FALSE); + + GIMP_THUMB_DEBUG_CALL (thumbnail); + + if (filename) + uri = g_filename_to_uri (filename, NULL, error); + + gimp_thumbnail_set_uri (thumbnail, uri); + + g_free (uri); + + return (!filename || uri); +} + +/** + * gimp_thumbnail_set_from_thumb: + * @thumbnail: a #GimpThumbnail object + * @filename: filename of a local thumbnail file + * @error: return location for possible errors + * + * This function tries to load the thumbnail file pointed to by + * @filename and retrieves the URI of the original image file from + * it. This allows you to find the image file associated with a + * thumbnail file. + * + * This will only work with thumbnails from the global thumbnail + * directory that contain a valid Thumb::URI tag. + * + * Return value: %TRUE if the pixbuf could be loaded, %FALSE otherwise + **/ +gboolean +gimp_thumbnail_set_from_thumb (GimpThumbnail *thumbnail, + const gchar *filename, + GError **error) +{ + GdkPixbuf *pixbuf; + const gchar *uri; + + g_return_val_if_fail (GIMP_IS_THUMBNAIL (thumbnail), FALSE); + g_return_val_if_fail (filename != NULL, FALSE); + g_return_val_if_fail (error == NULL || *error == NULL, FALSE); + + GIMP_THUMB_DEBUG_CALL (thumbnail); + + pixbuf = gdk_pixbuf_new_from_file (filename, error); + if (! pixbuf) + return FALSE; + + uri = gdk_pixbuf_get_option (pixbuf, TAG_THUMB_URI); + if (! uri) + { + g_set_error (error, GIMP_THUMB_ERROR, 0, + _("Thumbnail contains no Thumb::URI tag")); + g_object_unref (pixbuf); + return FALSE; + } + + gimp_thumbnail_set_uri (thumbnail, uri); + g_object_unref (pixbuf); + + return TRUE; +} + +/** + * gimp_thumbnail_peek_image: + * @thumbnail: a #GimpThumbnail object + * + * Checks the image file associated with the @thumbnail and updates + * information such as state, filesize and modification time. + * + * Return value: the image's #GimpThumbState after the update + **/ +GimpThumbState +gimp_thumbnail_peek_image (GimpThumbnail *thumbnail) +{ + g_return_val_if_fail (GIMP_IS_THUMBNAIL (thumbnail), + GIMP_THUMB_STATE_UNKNOWN); + + GIMP_THUMB_DEBUG_CALL (thumbnail); + + g_object_freeze_notify (G_OBJECT (thumbnail)); + + gimp_thumbnail_update_image (thumbnail); + + g_object_thaw_notify (G_OBJECT (thumbnail)); + + return thumbnail->image_state; +} + +/** + * gimp_thumbnail_peek_thumb: + * @thumbnail: a #GimpThumbnail object + * @size: the preferred size of the thumbnail image + * + * Checks if a thumbnail file for the @thumbnail exists. It doesn't + * load the thumbnail image and thus cannot check if the thumbnail is + * valid and uptodate for the image file asosciated with the + * @thumbnail. + * + * If you want to check the thumbnail, either attempt to load it using + * gimp_thumbnail_load_thumb(), or, if you don't need the resulting + * thumbnail pixbuf, use gimp_thumbnail_check_thumb(). + * + * Return value: the thumbnail's #GimpThumbState after the update + **/ +GimpThumbState +gimp_thumbnail_peek_thumb (GimpThumbnail *thumbnail, + GimpThumbSize size) +{ + g_return_val_if_fail (GIMP_IS_THUMBNAIL (thumbnail), + GIMP_THUMB_STATE_UNKNOWN); + + GIMP_THUMB_DEBUG_CALL (thumbnail); + + g_object_freeze_notify (G_OBJECT (thumbnail)); + + gimp_thumbnail_update_image (thumbnail); + gimp_thumbnail_update_thumb (thumbnail, size); + + g_object_thaw_notify (G_OBJECT (thumbnail)); + + return thumbnail->thumb_state; +} + +/** + * gimp_thumbnail_check_thumb: + * @thumbnail: a #GimpThumbnail object + * @size: the preferred size of the thumbnail image + * + * Checks if a thumbnail file for the @thumbnail exists, loads it and + * verifies it is valid and uptodate for the image file asosciated + * with the @thumbnail. + * + * Return value: the thumbnail's #GimpThumbState after the update + * + * Since: 2.2 + **/ +GimpThumbState +gimp_thumbnail_check_thumb (GimpThumbnail *thumbnail, + GimpThumbSize size) +{ + GdkPixbuf *pixbuf; + + g_return_val_if_fail (GIMP_IS_THUMBNAIL (thumbnail), FALSE); + + GIMP_THUMB_DEBUG_CALL (thumbnail); + + if (gimp_thumbnail_peek_thumb (thumbnail, size) == GIMP_THUMB_STATE_OK) + return GIMP_THUMB_STATE_OK; + + pixbuf = gimp_thumbnail_load_thumb (thumbnail, size, NULL); + + if (pixbuf) + g_object_unref (pixbuf); + + return thumbnail->thumb_state; +} + +static void +gimp_thumbnail_update_image (GimpThumbnail *thumbnail) +{ + GimpThumbState state; + gint64 mtime = 0; + gint64 filesize = 0; + + if (! thumbnail->image_uri) + return; + + state = thumbnail->image_state; + + switch (state) + { + case GIMP_THUMB_STATE_UNKNOWN: + g_return_if_fail (thumbnail->image_filename == NULL); + + thumbnail->image_filename = + _gimp_thumb_filename_from_uri (thumbnail->image_uri); + + if (! thumbnail->image_filename) + state = GIMP_THUMB_STATE_REMOTE; + + break; + + case GIMP_THUMB_STATE_REMOTE: + break; + + default: + g_return_if_fail (thumbnail->image_filename != NULL); + break; + } + + switch (state) + { + case GIMP_THUMB_STATE_REMOTE: + break; + + default: + switch (gimp_thumb_file_test (thumbnail->image_filename, + &mtime, &filesize, + &thumbnail->image_not_found_errno)) + { + case GIMP_THUMB_FILE_TYPE_REGULAR: + state = GIMP_THUMB_STATE_EXISTS; + break; + + case GIMP_THUMB_FILE_TYPE_FOLDER: + state = GIMP_THUMB_STATE_FOLDER; + break; + + case GIMP_THUMB_FILE_TYPE_SPECIAL: + state = GIMP_THUMB_STATE_SPECIAL; + break; + + default: + state = GIMP_THUMB_STATE_NOT_FOUND; + break; + } + break; + } + + if (state != thumbnail->image_state) + { + g_object_set (thumbnail, + "image-state", state, + NULL); + } + + if (mtime != thumbnail->image_mtime || filesize != thumbnail->image_filesize) + { + g_object_set (thumbnail, + "image-mtime", mtime, + "image-filesize", filesize, + NULL); + + if (thumbnail->thumb_state == GIMP_THUMB_STATE_OK) + g_object_set (thumbnail, + "thumb-state", GIMP_THUMB_STATE_OLD, + NULL); + } +} + +static void +gimp_thumbnail_update_thumb (GimpThumbnail *thumbnail, + GimpThumbSize size) +{ + gchar *filename; + GimpThumbState state; + gint64 filesize = 0; + gint64 mtime = 0; + + if (! thumbnail->image_uri) + return; + + state = thumbnail->thumb_state; + + filename = gimp_thumb_find_thumb (thumbnail->image_uri, &size); + + /* We don't want to clear the GIMP_THUMB_STATE_FAILED state, because + * it is normal to have no filename if thumbnail creation failed. */ + if (state != GIMP_THUMB_STATE_FAILED && ! filename) + state = GIMP_THUMB_STATE_NOT_FOUND; + + switch (state) + { + case GIMP_THUMB_STATE_EXISTS: + case GIMP_THUMB_STATE_OLD: + case GIMP_THUMB_STATE_OK: + g_return_if_fail (thumbnail->thumb_filename != NULL); + + if (thumbnail->thumb_size == size && + thumbnail->thumb_filesize == filesize && + thumbnail->thumb_mtime == mtime) + { + g_free (filename); + return; + } + break; + default: + break; + } + + if (thumbnail->thumb_filename) + g_free (thumbnail->thumb_filename); + + thumbnail->thumb_filename = filename; + + if (filename) + state = (size > GIMP_THUMB_SIZE_FAIL ? + GIMP_THUMB_STATE_EXISTS : GIMP_THUMB_STATE_FAILED); + + thumbnail->thumb_size = size; + thumbnail->thumb_filesize = filesize; + thumbnail->thumb_mtime = mtime; + + if (state != thumbnail->thumb_state) + { + g_object_freeze_notify (G_OBJECT (thumbnail)); + + g_object_set (thumbnail, "thumb-state", state, NULL); + gimp_thumbnail_reset_info (thumbnail); + + g_object_thaw_notify (G_OBJECT (thumbnail)); + } +} + +static void +gimp_thumbnail_reset_info (GimpThumbnail *thumbnail) +{ + g_object_set (thumbnail, + "image-width", 0, + "image-height", 0, + "image-type", NULL, + "image-num-layers", 0, + NULL); +} + +static void +gimp_thumbnail_set_info_from_pixbuf (GimpThumbnail *thumbnail, + GdkPixbuf *pixbuf) +{ + const gchar *option; + gint num; + + g_object_freeze_notify (G_OBJECT (thumbnail)); + + gimp_thumbnail_reset_info (thumbnail); + + g_free (thumbnail->image_mimetype); + thumbnail->image_mimetype = + g_strdup (gdk_pixbuf_get_option (pixbuf, TAG_THUMB_MIMETYPE)); + + option = gdk_pixbuf_get_option (pixbuf, TAG_THUMB_IMAGE_WIDTH); + if (option && sscanf (option, "%d", &num) == 1) + thumbnail->image_width = num; + + option = gdk_pixbuf_get_option (pixbuf, TAG_THUMB_IMAGE_HEIGHT); + if (option && sscanf (option, "%d", &num) == 1) + thumbnail->image_height = num; + + thumbnail->image_type = + g_strdup (gdk_pixbuf_get_option (pixbuf, TAG_THUMB_GIMP_TYPE)); + + option = gdk_pixbuf_get_option (pixbuf, TAG_THUMB_GIMP_LAYERS); + if (option && sscanf (option, "%d", &num) == 1) + thumbnail->image_num_layers = num; + + g_object_thaw_notify (G_OBJECT (thumbnail)); +} + +static gboolean +gimp_thumbnail_save (GimpThumbnail *thumbnail, + GimpThumbSize size, + const gchar *filename, + GdkPixbuf *pixbuf, + const gchar *software, + GError **error) +{ + const gchar *keys[12]; + gchar *values[12]; + gchar *basename; + gchar *dirname; + gchar *tmpname; + gboolean success; + gint i = 0; + + keys[i] = TAG_DESCRIPTION; + values[i] = g_strdup_printf ("Thumbnail of %s", thumbnail->image_uri); + i++; + + keys[i] = TAG_SOFTWARE; + values[i] = g_strdup (software); + i++; + + keys[i] = TAG_THUMB_URI; + values[i] = g_strdup (thumbnail->image_uri); + i++; + + keys[i] = TAG_THUMB_MTIME; + values[i] = g_strdup_printf ("%" G_GINT64_FORMAT, thumbnail->image_mtime); + i++; + + keys[i] = TAG_THUMB_FILESIZE; + values[i] = g_strdup_printf ("%" G_GINT64_FORMAT, thumbnail->image_filesize); + i++; + + if (thumbnail->image_mimetype) + { + keys[i] = TAG_THUMB_MIMETYPE; + values[i] = g_strdup (thumbnail->image_mimetype); + i++; + } + + if (thumbnail->image_width > 0) + { + keys[i] = TAG_THUMB_IMAGE_WIDTH; + values[i] = g_strdup_printf ("%d", thumbnail->image_width); + i++; + } + + if (thumbnail->image_height > 0) + { + keys[i] = TAG_THUMB_IMAGE_HEIGHT; + values[i] = g_strdup_printf ("%d", thumbnail->image_height); + i++; + } + + if (thumbnail->image_type) + { + keys[i] = TAG_THUMB_GIMP_TYPE; + values[i] = g_strdup (thumbnail->image_type); + i++; + } + + if (thumbnail->image_num_layers > 0) + { + keys[i] = TAG_THUMB_GIMP_LAYERS; + values[i] = g_strdup_printf ("%d", thumbnail->image_num_layers); + i++; + } + + keys[i] = NULL; + values[i] = NULL; + + basename = g_path_get_basename (filename); + dirname = g_path_get_dirname (filename); + + tmpname = g_strdup_printf ("%s%cgimp-thumb-%d-%.8s", + dirname, G_DIR_SEPARATOR, getpid (), basename); + + g_free (dirname); + g_free (basename); + + success = gdk_pixbuf_savev (pixbuf, tmpname, "png", + (gchar **) keys, values, + error); + + for (i = 0; keys[i]; i++) + g_free (values[i]); + + if (success) + { +#ifdef GIMP_THUMB_DEBUG + g_printerr ("thumbnail saved to temporary file %s\n", tmpname); +#endif + + success = (g_rename (tmpname, filename) == 0); + + if (! success) + g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno), + _("Could not create thumbnail for %s: %s"), + thumbnail->image_uri, g_strerror (errno)); + } + + if (success) + { +#ifdef GIMP_THUMB_DEBUG + g_printerr ("temporary thumbnail file renamed to %s\n", filename); +#endif + + success = (g_chmod (filename, 0600) == 0); + + if (! success) + g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno), + "Could not set permissions of thumbnail for %s: %s", + thumbnail->image_uri, g_strerror (errno)); + + g_object_freeze_notify (G_OBJECT (thumbnail)); + + gimp_thumbnail_update_thumb (thumbnail, size); + + if (success && + thumbnail->thumb_state == GIMP_THUMB_STATE_EXISTS && + strcmp (filename, thumbnail->thumb_filename) == 0) + { + thumbnail->thumb_state = GIMP_THUMB_STATE_OK; + } + + g_object_thaw_notify (G_OBJECT (thumbnail)); + } + + g_unlink (tmpname); + g_free (tmpname); + + return success; +} + +#ifdef GIMP_THUMB_DEBUG +static void +gimp_thumbnail_debug_notify (GObject *object, + GParamSpec *pspec) +{ + GValue value = G_VALUE_INIT; + gchar *str = NULL; + const gchar *name; + + g_value_init (&value, pspec->value_type); + g_object_get_property (object, pspec->name, &value); + + if (G_VALUE_HOLDS_STRING (&value)) + { + str = g_value_dup_string (&value); + } + else if (g_value_type_transformable (pspec->value_type, G_TYPE_STRING)) + { + GValue tmp = G_VALUE_INIT; + + g_value_init (&tmp, G_TYPE_STRING); + g_value_transform (&value, &tmp); + + str = g_value_dup_string (&tmp); + + g_value_unset (&tmp); + } + + g_value_unset (&value); + + name = GIMP_THUMBNAIL (object)->image_uri; + + g_printerr (" GimpThumb (%s) %s: %s\n", + name ? name : "(null)", pspec->name, str); + + g_free (str); +} +#endif + + +/** + * gimp_thumbnail_load_thumb: + * @thumbnail: a #GimpThumbnail object + * @size: the preferred #GimpThumbSize for the preview + * @error: return location for possible errors + * + * Attempts to load a thumbnail preview for the image associated with + * @thumbnail. Before you use this function you need need to set an + * image location using gimp_thumbnail_set_uri() or + * gimp_thumbnail_set_filename(). You can also peek at the thumb + * before loading it using gimp_thumbnail_peek_thumb. + * + * This function will return the best matching pixbuf for the + * specified @size. It returns the pixbuf as loaded from disk. It is + * left to the caller to scale it to the desired size. The returned + * pixbuf may also represent an outdated preview of the image file. + * In order to verify if the preview is uptodate, you should check the + * "thumb_state" property after calling this function. + * + * Return value: a preview pixbuf or %NULL if no thumbnail was found + **/ +GdkPixbuf * +gimp_thumbnail_load_thumb (GimpThumbnail *thumbnail, + GimpThumbSize size, + GError **error) +{ + GimpThumbState state; + GdkPixbuf *pixbuf; + const gchar *option; + gint64 image_mtime; + gint64 image_size; + + g_return_val_if_fail (GIMP_IS_THUMBNAIL (thumbnail), NULL); + + GIMP_THUMB_DEBUG_CALL (thumbnail); + + if (! thumbnail->image_uri) + return NULL; + + state = gimp_thumbnail_peek_thumb (thumbnail, size); + + if (state < GIMP_THUMB_STATE_EXISTS || state == GIMP_THUMB_STATE_FAILED) + return NULL; + + pixbuf = gdk_pixbuf_new_from_file (thumbnail->thumb_filename, NULL); + if (! pixbuf) + return NULL; + +#ifdef GIMP_THUMB_DEBUG + g_printerr ("thumbnail loaded from %s\n", thumbnail->thumb_filename); +#endif + + g_object_freeze_notify (G_OBJECT (thumbnail)); + + /* URI and mtime from the thumbnail need to match our file */ + option = gdk_pixbuf_get_option (pixbuf, TAG_THUMB_URI); + if (!option) + goto finish; + + if (strcmp (option, thumbnail->image_uri)) + { + /* might be a local thumbnail, try if the local part matches */ + const gchar *baseuri = strrchr (thumbnail->image_uri, '/'); + + if (!baseuri || strcmp (option, baseuri)) + goto finish; + } + + state = GIMP_THUMB_STATE_OLD; + + option = gdk_pixbuf_get_option (pixbuf, TAG_THUMB_MTIME); + if (!option || sscanf (option, "%" G_GINT64_FORMAT, &image_mtime) != 1) + goto finish; + + option = gdk_pixbuf_get_option (pixbuf, TAG_THUMB_FILESIZE); + if (option && sscanf (option, "%" G_GINT64_FORMAT, &image_size) != 1) + goto finish; + + /* TAG_THUMB_FILESIZE is optional but must match if present */ + if (image_mtime == thumbnail->image_mtime && + (option == NULL || image_size == thumbnail->image_filesize)) + { + if (thumbnail->thumb_size == GIMP_THUMB_SIZE_FAIL) + state = GIMP_THUMB_STATE_FAILED; + else + state = GIMP_THUMB_STATE_OK; + } + + if (state == GIMP_THUMB_STATE_FAILED) + gimp_thumbnail_reset_info (thumbnail); + else + gimp_thumbnail_set_info_from_pixbuf (thumbnail, pixbuf); + + finish: + if (thumbnail->thumb_size == GIMP_THUMB_SIZE_FAIL || + (state != GIMP_THUMB_STATE_OLD && state != GIMP_THUMB_STATE_OK)) + { + g_object_unref (pixbuf); + pixbuf = NULL; + } + + g_object_set (thumbnail, + "thumb-state", state, + NULL); + + g_object_thaw_notify (G_OBJECT (thumbnail)); + + return pixbuf; +} + +/** + * gimp_thumbnail_save_thumb: + * @thumbnail: a #GimpThumbnail object + * @pixbuf: a #GdkPixbuf representing the preview thumbnail + * @software: a string describing the software saving the thumbnail + * @error: return location for possible errors + * + * Saves a preview thumbnail for the image associated with @thumbnail. + * to the global thumbnail repository. + * + * The caller is responsible for setting the image file location, it's + * filesize, modification time. One way to set this info is to is to + * call gimp_thumbnail_set_uri() followed by gimp_thumbnail_peek_image(). + * Since this won't work for remote images, it is left to the user of + * gimp_thumbnail_save_thumb() to do this or to set the information + * using the @thumbnail object properties. + * + * The image format type and the number of layers can optionally be + * set in order to be stored with the preview image. + * + * Return value: %TRUE if a thumbnail was successfully written, + * %FALSE otherwise + **/ +gboolean +gimp_thumbnail_save_thumb (GimpThumbnail *thumbnail, + GdkPixbuf *pixbuf, + const gchar *software, + GError **error) +{ + GimpThumbSize size; + gchar *name; + gboolean success; + + g_return_val_if_fail (GIMP_IS_THUMBNAIL (thumbnail), FALSE); + g_return_val_if_fail (thumbnail->image_uri != NULL, FALSE); + g_return_val_if_fail (GDK_IS_PIXBUF (pixbuf), FALSE); + g_return_val_if_fail (software != NULL, FALSE); + g_return_val_if_fail (error == NULL || *error == NULL, FALSE); + + GIMP_THUMB_DEBUG_CALL (thumbnail); + + size = MAX (gdk_pixbuf_get_width (pixbuf), gdk_pixbuf_get_height (pixbuf)); + if (size < 1) + return TRUE; + + name = gimp_thumb_name_from_uri (thumbnail->image_uri, size); + if (! name) + return TRUE; + + if (! gimp_thumb_ensure_thumb_dir (size, error)) + { + g_free (name); + return FALSE; + } + + success = gimp_thumbnail_save (thumbnail, + size, name, pixbuf, software, + error); + g_free (name); + + return success; +} + +/** + * gimp_thumbnail_save_thumb_local: + * @thumbnail: a #GimpThumbnail object + * @pixbuf: a #GdkPixbuf representing the preview thumbnail + * @software: a string describing the software saving the thumbnail + * @error: return location for possible errors + * + * Saves a preview thumbnail for the image associated with @thumbnail + * to the local thumbnail repository. Local thumbnails have been added + * with version 0.7 of the spec. + * + * Please see also gimp_thumbnail_save_thumb(). The notes made there + * apply here as well. + * + * Return value: %TRUE if a thumbnail was successfully written, + * %FALSE otherwise + * + * Since: 2.2 + **/ +gboolean +gimp_thumbnail_save_thumb_local (GimpThumbnail *thumbnail, + GdkPixbuf *pixbuf, + const gchar *software, + GError **error) +{ + GimpThumbSize size; + gchar *name; + gchar *filename; + gchar *dirname; + gboolean success; + + g_return_val_if_fail (GIMP_IS_THUMBNAIL (thumbnail), FALSE); + g_return_val_if_fail (thumbnail->image_uri != NULL, FALSE); + g_return_val_if_fail (GDK_IS_PIXBUF (pixbuf), FALSE); + g_return_val_if_fail (software != NULL, FALSE); + g_return_val_if_fail (error == NULL || *error == NULL, FALSE); + + GIMP_THUMB_DEBUG_CALL (thumbnail); + + size = MAX (gdk_pixbuf_get_width (pixbuf), gdk_pixbuf_get_height (pixbuf)); + if (size < 1) + return TRUE; + + filename = _gimp_thumb_filename_from_uri (thumbnail->image_uri); + if (! filename) + return TRUE; + + dirname = g_path_get_dirname (filename); + g_free (filename); + + name = gimp_thumb_name_from_uri_local (thumbnail->image_uri, size); + if (! name) + { + g_free (dirname); + return TRUE; + } + + if (! gimp_thumb_ensure_thumb_dir_local (dirname, size, error)) + { + g_free (name); + g_free (dirname); + return FALSE; + } + + g_free (dirname); + + success = gimp_thumbnail_save (thumbnail, + size, name, pixbuf, software, + error); + g_free (name); + + return success; +} + +/** + * gimp_thumbnail_save_failure: + * @thumbnail: a #GimpThumbnail object + * @software: a string describing the software saving the thumbnail + * @error: return location for possible errors + * + * Saves a failure thumbnail for the image associated with + * @thumbnail. This is an empty pixbuf that indicates that an attempt + * to create a preview for the image file failed. It should be used to + * prevent the software from further attempts to create this thumbnail. + * + * Return value: %TRUE if a failure thumbnail was successfully written, + * %FALSE otherwise + **/ +gboolean +gimp_thumbnail_save_failure (GimpThumbnail *thumbnail, + const gchar *software, + GError **error) +{ + GdkPixbuf *pixbuf; + gchar *name; + gchar *desc; + gchar *time_str; + gchar *size_str; + gboolean success; + + g_return_val_if_fail (GIMP_IS_THUMBNAIL (thumbnail), FALSE); + g_return_val_if_fail (thumbnail->image_uri != NULL, FALSE); + g_return_val_if_fail (software != NULL, FALSE); + + GIMP_THUMB_DEBUG_CALL (thumbnail); + + name = gimp_thumb_name_from_uri (thumbnail->image_uri, GIMP_THUMB_SIZE_FAIL); + if (! name) + return TRUE; + + if (! gimp_thumb_ensure_thumb_dir (GIMP_THUMB_SIZE_FAIL, error)) + { + g_free (name); + return FALSE; + } + + pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, 1, 1); + + desc = g_strdup_printf ("Thumbnail failure for %s", thumbnail->image_uri); + time_str = g_strdup_printf ("%" G_GINT64_FORMAT, thumbnail->image_mtime); + size_str = g_strdup_printf ("%" G_GINT64_FORMAT, thumbnail->image_filesize); + + success = gdk_pixbuf_save (pixbuf, name, "png", error, + TAG_DESCRIPTION, desc, + TAG_SOFTWARE, software, + TAG_THUMB_URI, thumbnail->image_uri, + TAG_THUMB_MTIME, time_str, + TAG_THUMB_FILESIZE, size_str, + NULL); + if (success) + { + success = (g_chmod (name, 0600) == 0); + + if (success) + gimp_thumbnail_update_thumb (thumbnail, GIMP_THUMB_SIZE_NORMAL); + else + g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno), + "Could not set permissions of thumbnail '%s': %s", + name, g_strerror (errno)); + } + + g_object_unref (pixbuf); + + g_free (size_str); + g_free (time_str); + g_free (desc); + g_free (name); + + return success; +} + +/** + * gimp_thumbnail_delete_failure: + * @thumbnail: a #GimpThumbnail object + * + * Removes a failure thumbnail if one exists. This function should be + * used after a thumbnail has been successfully created. + * + * Since: 2.2 + **/ +void +gimp_thumbnail_delete_failure (GimpThumbnail *thumbnail) +{ + gchar *filename; + + g_return_if_fail (GIMP_IS_THUMBNAIL (thumbnail)); + g_return_if_fail (thumbnail->image_uri != NULL); + + GIMP_THUMB_DEBUG_CALL (thumbnail); + + filename = gimp_thumb_name_from_uri (thumbnail->image_uri, + GIMP_THUMB_SIZE_FAIL); + if (filename) + { + g_unlink (filename); + g_free (filename); + } +} + +/** + * gimp_thumbnail_delete_others: + * @thumbnail: a #GimpThumbnail object + * @size: the thumbnail size which should not be deleted + * + * Removes all other thumbnails from the global thumbnail + * repository. Only the thumbnail for @size is not deleted. This + * function should be used after a thumbnail has been successfully + * updated. See the spec for a more detailed description on when to + * delete thumbnails. + * + * Since: 2.2 + **/ +void +gimp_thumbnail_delete_others (GimpThumbnail *thumbnail, + GimpThumbSize size) +{ + g_return_if_fail (GIMP_IS_THUMBNAIL (thumbnail)); + g_return_if_fail (thumbnail->image_uri != NULL); + + GIMP_THUMB_DEBUG_CALL (thumbnail); + + _gimp_thumbs_delete_others (thumbnail->image_uri, size); +} + +/** + * gimp_thumbnail_has_failed: + * @thumbnail: a #GimpThumbnail object + * + * Checks if a valid failure thumbnail for the given thumbnail exists + * in the global thumbnail repository. This may be the case even if + * gimp_thumbnail_peek_thumb() doesn't return %GIMP_THUMB_STATE_FAILED + * since there might be a real thumbnail and a failure thumbnail for + * the same image file. + * + * The application should not attempt to create the thumbnail if a + * valid failure thumbnail exists. + * + * Return value: %TRUE if a failure thumbnail exists or + * + * Since: 2.2 + **/ +gboolean +gimp_thumbnail_has_failed (GimpThumbnail *thumbnail) +{ + GdkPixbuf *pixbuf; + const gchar *option; + gchar *filename; + gint64 image_mtime; + gint64 image_size; + gboolean failed = FALSE; + + g_return_val_if_fail (GIMP_IS_THUMBNAIL (thumbnail), FALSE); + g_return_val_if_fail (thumbnail->image_uri != NULL, FALSE); + + GIMP_THUMB_DEBUG_CALL (thumbnail); + + filename = gimp_thumb_name_from_uri (thumbnail->image_uri, + GIMP_THUMB_SIZE_FAIL); + if (! filename) + return FALSE; + + pixbuf = gdk_pixbuf_new_from_file (filename, NULL); + g_free (filename); + + if (! pixbuf) + return FALSE; + + if (gimp_thumbnail_peek_image (thumbnail) < GIMP_THUMB_STATE_EXISTS) + goto finish; + + /* URI and mtime from the thumbnail need to match our file */ + option = gdk_pixbuf_get_option (pixbuf, TAG_THUMB_URI); + if (! option || strcmp (option, thumbnail->image_uri)) + goto finish; + + option = gdk_pixbuf_get_option (pixbuf, TAG_THUMB_MTIME); + if (!option || sscanf (option, "%" G_GINT64_FORMAT, &image_mtime) != 1) + goto finish; + + option = gdk_pixbuf_get_option (pixbuf, TAG_THUMB_FILESIZE); + if (option && sscanf (option, "%" G_GINT64_FORMAT, &image_size) != 1) + goto finish; + + /* TAG_THUMB_FILESIZE is optional but must match if present */ + if (image_mtime == thumbnail->image_mtime && + (option == NULL || image_size == thumbnail->image_filesize)) + { + failed = TRUE; + } + + finish: + g_object_unref (pixbuf); + + return failed; +} diff --git a/libgimpthumb/gimpthumbnail.h b/libgimpthumb/gimpthumbnail.h new file mode 100644 index 0000000..2099ff0 --- /dev/null +++ b/libgimpthumb/gimpthumbnail.h @@ -0,0 +1,135 @@ +/* LIBGIMP - The GIMP Library + * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball + * + * Thumbnail handling according to the Thumbnail Managing Standard. + * https://specifications.freedesktop.org/thumbnail-spec/ + * + * Copyright (C) 2001-2004 Sven Neumann + * Michael Natterer + * + * This library is free software: you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 3 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see + * . + */ + +#if !defined (__GIMP_THUMB_H_INSIDE__) && !defined (GIMP_THUMB_COMPILATION) +#error "Only can be included directly." +#endif + +#ifndef __GIMP_THUMBNAIL_H__ +#define __GIMP_THUMBNAIL_H__ + +G_BEGIN_DECLS + + +#define GIMP_TYPE_THUMBNAIL (gimp_thumbnail_get_type ()) +#define GIMP_THUMBNAIL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_THUMBNAIL, GimpThumbnail)) +#define GIMP_THUMBNAIL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_THUMBNAIL, GimpThumbnailClass)) +#define GIMP_IS_THUMBNAIL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_THUMBNAIL)) +#define GIMP_IS_THUMBNAIL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_THUMBNAIL)) +#define GIMP_THUMBNAIL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_THUMBNAIL, GimpThumbnailClass)) + + +typedef struct _GimpThumbnailClass GimpThumbnailClass; + +/** + * GimpThumbnail: + * + * All members of #GimpThumbnail are private and should only be accessed + * using object properties. + **/ +struct _GimpThumbnail +{ + GObject parent_instance; + + /*< private >*/ + GimpThumbState image_state; + gchar *image_uri; + gchar *image_filename; + gint64 image_filesize; + gint64 image_mtime; + gint image_not_found_errno; + gint image_width; + gint image_height; + gchar *image_type; + gint image_num_layers; + + GimpThumbState thumb_state; + GimpThumbSize thumb_size; + gchar *thumb_filename; + gint64 thumb_filesize; + gint64 thumb_mtime; + + gchar *image_mimetype; + + gpointer _reserved_2; +}; + +struct _GimpThumbnailClass +{ + GObjectClass parent_class; + + /* Padding for future expansion */ + void (* _gimp_reserved1) (void); + void (* _gimp_reserved2) (void); + void (* _gimp_reserved3) (void); + void (* _gimp_reserved4) (void); +}; + + +GType gimp_thumbnail_get_type (void) G_GNUC_CONST; + +GimpThumbnail * gimp_thumbnail_new (void); + +void gimp_thumbnail_set_uri (GimpThumbnail *thumbnail, + const gchar *uri); +gboolean gimp_thumbnail_set_filename (GimpThumbnail *thumbnail, + const gchar *filename, + GError **error); +gboolean gimp_thumbnail_set_from_thumb (GimpThumbnail *thumbnail, + const gchar *filename, + GError **error); + +GimpThumbState gimp_thumbnail_peek_image (GimpThumbnail *thumbnail); +GimpThumbState gimp_thumbnail_peek_thumb (GimpThumbnail *thumbnail, + GimpThumbSize size); + +GimpThumbState gimp_thumbnail_check_thumb (GimpThumbnail *thumbnail, + GimpThumbSize size); + +GdkPixbuf * gimp_thumbnail_load_thumb (GimpThumbnail *thumbnail, + GimpThumbSize size, + GError **error); + +gboolean gimp_thumbnail_save_thumb (GimpThumbnail *thumbnail, + GdkPixbuf *pixbuf, + const gchar *software, + GError **error); +gboolean gimp_thumbnail_save_thumb_local (GimpThumbnail *thumbnail, + GdkPixbuf *pixbuf, + const gchar *software, + GError **error); + +gboolean gimp_thumbnail_save_failure (GimpThumbnail *thumbnail, + const gchar *software, + GError **error); +void gimp_thumbnail_delete_failure (GimpThumbnail *thumbnail); +void gimp_thumbnail_delete_others (GimpThumbnail *thumbnail, + GimpThumbSize size); + +gboolean gimp_thumbnail_has_failed (GimpThumbnail *thumbnail); + + +G_END_DECLS + +#endif /* __GIMP_THUMBNAIL_H__ */ -- cgit v1.2.3