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Fixes to the new thumbnail code. Will need more changes... 

2004-01-06  Sven Neumann  <sven@gimp.org>

	Fixes to the new thumbnail code. Will need more changes...

	* app/core/gimpimagefile.c: set image information before calling
	gimp_thumbnail_save_thumb(). Emit the "info_changed" signal when
	the thumbnail states change.

	* libgimpthumb/gimpthumbnail.c: redone gimp_thumbnail_load_thumb().
	Added some debugging code that is by default disabled.
This commit is contained in:
Sven Neumann 2004-01-06 02:33:08 +00:00 committed by Sven Neumann
parent f6d50d1ba7
commit 672a56b2db
3 changed files with 174 additions and 85 deletions
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11
ChangeLog
View File

@ -1,3 +1,14 @@
2004-01-06 Sven Neumann <sven@gimp.org>
Fixes to the new thumbnail code. Will need more changes...
* app/core/gimpimagefile.c: set image information before calling
gimp_thumbnail_save_thumb(). Emit the "info_changed" signal when
the thumbnail states change.
* libgimpthumb/gimpthumbnail.c: redone gimp_thumbnail_load_thumb().
Added some debugging code that is by default disabled.
2004-01-05 Manish Singh <yosh@gimp.org>
* app/paint-funcs/paint-funcs.c (expand_line): on second thought, just

92
app/core/gimpimagefile.c
View File

@ -54,23 +54,26 @@ enum
LAST_SIGNAL
};
static void gimp_imagefile_class_init (GimpImagefileClass *klass);
static void gimp_imagefile_init (GimpImagefile *imagefile);
static void gimp_imagefile_finalize (GObject *object);
static void gimp_imagefile_name_changed (GimpObject *object);
static void gimp_imagefile_class_init (GimpImagefileClass *klass);
static void gimp_imagefile_init (GimpImagefile *imagefile);
static void gimp_imagefile_finalize (GObject *object);
static void gimp_imagefile_name_changed (GimpObject *object);
static TempBuf * gimp_imagefile_get_new_preview (GimpViewable *viewable,
gint width,
gint height);
static TempBuf * gimp_imagefile_load_thumb (GimpImagefile *imagefile,
gint size);
static gboolean gimp_imagefile_save_thumb (GimpImagefile *imagefile,
GimpImage *gimage,
gint size,
GError **error);
static void gimp_imagefile_notify_thumbnail (GimpImagefile *imagefile,
GParamSpec *pspec);
static gchar * gimp_imagefile_get_description (GimpViewable *viewable,
gchar **tooltip);
static TempBuf * gimp_imagefile_get_new_preview (GimpViewable *viewable,
gint width,
gint height);
static TempBuf * gimp_imagefile_load_thumb (GimpImagefile *imagefile,
gint size);
static gboolean gimp_imagefile_save_thumb (GimpImagefile *imagefile,
GimpImage *gimage,
gint size,
GError **error);
static gchar * gimp_imagefile_get_description (GimpViewable *viewable,
gchar **tooltip);
static guint gimp_imagefile_signals[LAST_SIGNAL] = { 0 };
@ -137,6 +140,8 @@ gimp_imagefile_class_init (GimpImagefileClass *klass)
viewable_class->get_new_preview = gimp_imagefile_get_new_preview;
viewable_class->get_description = gimp_imagefile_get_description;
g_type_class_ref (GIMP_TYPE_IMAGE_TYPE);
creator = g_strdup_printf ("gimp-%d.%d",
GIMP_MAJOR_VERSION, GIMP_MINOR_VERSION);
@ -151,6 +156,10 @@ gimp_imagefile_init (GimpImagefile *imagefile)
imagefile->gimp = NULL;
imagefile->thumbnail = gimp_thumbnail_new ();
imagefile->description = NULL;
g_signal_connect_object (imagefile->thumbnail, "notify",
G_CALLBACK (gimp_imagefile_notify_thumbnail),
imagefile, G_CONNECT_SWAPPED);
}
static void
@ -197,6 +206,8 @@ void
gimp_imagefile_update (GimpImagefile *imagefile,
gint size)
{
gchar *uri;
g_return_if_fail (GIMP_IS_IMAGEFILE (imagefile));
g_return_if_fail (size <= 256);
@ -208,10 +219,10 @@ gimp_imagefile_update (GimpImagefile *imagefile,
gimp_viewable_invalidate_preview (GIMP_VIEWABLE (imagefile));
gimp_thumbnail_peek_image (imagefile->thumbnail);
gimp_thumbnail_peek_thumb (imagefile->thumbnail, size);
g_object_get (imagefile->thumbnail,
"image-uri", &uri,
NULL);
#if 0
if (uri)
{
GimpImagefile *documents_imagefile;
@ -224,8 +235,9 @@ gimp_imagefile_update (GimpImagefile *imagefile,
{
gimp_imagefile_update (GIMP_IMAGEFILE (documents_imagefile), size);
}
g_free (uri);
}
#endif
}
void
@ -316,6 +328,17 @@ gimp_imagefile_name_changed (GimpObject *object)
gimp_thumbnail_set_uri (imagefile->thumbnail, gimp_object_get_name (object));
}
static void
gimp_imagefile_notify_thumbnail (GimpImagefile *imagefile,
GParamSpec *pspec)
{
if (strcmp (pspec->name, "image-state") == 0 ||
strcmp (pspec->name, "thumb-state") == 0)
{
g_signal_emit (imagefile, gimp_imagefile_signals[INFO_CHANGED], 0);
}
}
static TempBuf *
gimp_imagefile_get_new_preview (GimpViewable *viewable,
gint width,
@ -331,8 +354,6 @@ gimp_imagefile_get_new_preview (GimpViewable *viewable,
temp_buf = gimp_imagefile_load_thumb (imagefile, MAX (width, height));
/* FIXME: add back .xvpics compatibility */
if (temp_buf)
{
gint preview_width;
@ -577,10 +598,14 @@ gimp_imagefile_save_thumb (GimpImagefile *imagefile,
gint size,
GError **error)
{
const gchar *uri;
GdkPixbuf *pixbuf;
gint width, height;
gboolean success = FALSE;
const gchar *uri;
GdkPixbuf *pixbuf;
GEnumClass *enum_class;
GimpImageType type;
const gchar *type_str;
gint num_layers;
gint width, height;
gboolean success = FALSE;
if (size < 1)
return TRUE;
@ -615,6 +640,23 @@ gimp_imagefile_save_thumb (GimpImagefile *imagefile,
if (! pixbuf)
return TRUE;
type = GIMP_IMAGE_TYPE_FROM_BASE_TYPE (gimp_image_base_type (gimage));
if (gimp_image_has_alpha (gimage))
type = GIMP_IMAGE_TYPE_WITH_ALPHA (type);
enum_class = g_type_class_peek (GIMP_TYPE_IMAGE_TYPE);
type_str = g_enum_get_value (enum_class, type)->value_nick;
num_layers = gimp_container_num_children (gimage->layers);
g_object_set (imagefile->thumbnail,
"image-width", gimage->width,
"image-height", gimage->height,
"image-type", type_str,
"image-num-layers", num_layers,
NULL);
success = gimp_thumbnail_save_thumb (imagefile->thumbnail,
pixbuf,
"The GIMP " GIMP_VERSION,

156
libgimpthumb/gimpthumbnail.c
View File

@ -4,7 +4,7 @@
* Thumbnail handling according to the Thumbnail Managing Standard.
* http://triq.net/~pearl/thumbnail-spec/
*
* Copyright (C) 2001-2003 Sven Neumann <sven@gimp.org>
* Copyright (C) 2001-2004 Sven Neumann <sven@gimp.org>
* Michael Natterer <mitch@gimp.org>
*
* This library is free software; you can redistribute it and/or
@ -44,6 +44,9 @@
#include "libgimp/libgimp-intl.h"
/* #define THUMB_DEBUG 1 */
#define TAG_DESCRIPTION "tEXt::Description"
#define TAG_SOFTWARE "tEXt::Software"
#define TAG_THUMB_URI "tEXt::Thumb::URI"
@ -88,6 +91,11 @@ static void gimp_thumbnail_update_image (GimpThumbnail *thumbnail);
static void gimp_thumbnail_update_thumb (GimpThumbnail *thumbnail,
GimpThumbSize size);
#ifdef THUMB_DEBUG
static void gimp_thumbnail_debug_notify (GObject *object,
GParamSpec *pspec);
#endif
static GObjectClass *parent_class = NULL;
@ -208,6 +216,12 @@ gimp_thumbnail_init (GimpThumbnail *thumbnail)
thumbnail->thumb_filename = NULL;
thumbnail->thumb_mtime = 0;
thumbnail->thumb_filesize = 0;
#ifdef THUMB_DEBUG
g_signal_connect (thumbnail, "notify",
G_CALLBACK (gimp_thumbnail_debug_notify),
NULL);
#endif
}
static void
@ -246,7 +260,6 @@ gimp_thumbnail_set_property (GObject *object,
GParamSpec *pspec)
{
GimpThumbnail *thumbnail = GIMP_THUMBNAIL (object);
gint64 int_value;
switch (property_id)
{
@ -258,20 +271,10 @@ gimp_thumbnail_set_property (GObject *object,
g_value_get_string (value));
break;
case PROP_IMAGE_MTIME:
int_value = g_value_get_int64 (value);
if (thumbnail->image_mtime != int_value)
{
thumbnail->image_mtime = int_value;
gimp_thumbnail_invalidate_thumb (thumbnail);
}
thumbnail->image_mtime = g_value_get_int64 (value);
break;
case PROP_IMAGE_FILESIZE:
int_value = g_value_get_int64 (value);
if (thumbnail->image_filesize != int_value)
{
thumbnail->image_filesize = int_value;
gimp_thumbnail_invalidate_thumb (thumbnail);
}
thumbnail->image_filesize = g_value_get_int64 (value);
break;
case PROP_IMAGE_WIDTH:
thumbnail->image_width = g_value_get_int (value);
@ -328,7 +331,7 @@ gimp_thumbnail_get_property (GObject *object,
g_value_set_string (value, thumbnail->image_type);
break;
case PROP_IMAGE_NUM_LAYERS:
g_value_set_int (value, thumbnail->image_height);
g_value_set_int (value, thumbnail->image_num_layers);
break;
case PROP_THUMB_STATE:
g_value_set_enum (value, thumbnail->thumb_state);
@ -525,8 +528,8 @@ gimp_thumbnail_update_image (GimpThumbnail *thumbnail)
if (state != thumbnail->image_state)
{
g_object_set (thumbnail,
"image-state",
state, NULL);
"image-state", state,
NULL);
}
if (mtime != thumbnail->image_mtime || filesize != thumbnail->image_filesize)
@ -543,12 +546,10 @@ gimp_thumbnail_update_thumb (GimpThumbnail *thumbnail,
GimpThumbSize size)
{
GimpThumbState state;
GimpThumbSize s;
gint64 filesize;
gint64 mtime;
gint64 filesize = 0;
gint64 mtime = 0;
state = thumbnail->thumb_state;
s = size;
switch (state)
{
@ -561,7 +562,7 @@ gimp_thumbnail_update_thumb (GimpThumbnail *thumbnail,
g_return_if_fail (thumbnail->thumb_filename == NULL);
thumbnail->thumb_filename =
gimp_thumb_find_thumb (thumbnail->image_uri, &s);
gimp_thumb_find_thumb (thumbnail->image_uri, &size);
break;
default:
@ -569,20 +570,23 @@ gimp_thumbnail_update_thumb (GimpThumbnail *thumbnail,
break;
}
switch (state)
{
default:
if (thumbnail->thumb_filename &&
gimp_thumb_file_test (thumbnail->thumb_filename, &mtime, &filesize))
{
state = GIMP_THUMB_STATE_EXISTS;
}
else
{
state = GIMP_THUMB_STATE_NOT_FOUND;
}
break;
}
if (thumbnail->thumb_filename &&
gimp_thumb_file_test (thumbnail->thumb_filename, &filesize, &mtime))
{
state = GIMP_THUMB_STATE_EXISTS;
if (thumbnail->thumb_state == GIMP_THUMB_STATE_OK &&
thumbnail->thumb_filesize == filesize &&
thumbnail->thumb_mtime == mtime)
return;
}
else
{
state = GIMP_THUMB_STATE_NOT_FOUND;
}
thumbnail->thumb_filesize = filesize;
thumbnail->thumb_mtime = mtime;
if (state != thumbnail->thumb_state)
g_object_set (thumbnail, "thumb-state", state, NULL);
@ -643,7 +647,7 @@ gimp_thumbnail_set_info_from_pixbuf (GimpThumbnail *thumbnail,
option = gdk_pixbuf_get_option (pixbuf, TAG_THUMB_GIMP_LAYERS);
if (option && sscanf (option, "%d", &n) == 1)
thumbnail->image_num_layers = 0;
thumbnail->image_num_layers = n;
g_object_thaw_notify (G_OBJECT (thumbnail));
}
@ -675,47 +679,40 @@ gimp_thumbnail_load_thumb (GimpThumbnail *thumbnail,
GError **error)
{
GimpThumbState state;
GdkPixbuf *pixbuf = NULL;
gchar *name;
GdkPixbuf *pixbuf;
const gchar *option;
gint64 image_mtime;
gint64 image_size;
/* FIXME: this function needs review, it is broken!! */
g_return_val_if_fail (GIMP_IS_THUMBNAIL (thumbnail), NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
if (! thumbnail->image_uri)
return NULL;
state = GIMP_THUMB_STATE_NOT_FOUND;
state = gimp_thumbnail_peek_thumb (thumbnail, size);
name = gimp_thumb_find_thumb (thumbnail->image_uri, &size);
if (!name)
goto cleanup;
pixbuf = gdk_pixbuf_new_from_file (name, error);
g_free (name);
if (state != GIMP_THUMB_STATE_EXISTS)
return NULL;
pixbuf = gdk_pixbuf_new_from_file (thumbnail->thumb_filename, error);
if (! pixbuf)
goto cleanup;
return NULL;
/* 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 cleanup;
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 cleanup;
goto finish;
option = gdk_pixbuf_get_option (pixbuf, TAG_THUMB_FILESIZE);
if (option && sscanf (option, "%" G_GINT64_FORMAT, &image_size) != 1)
goto cleanup;
goto finish;
/* TAG_THUMB_FILESIZE is optional but must match if present */
if (image_mtime == thumbnail->image_mtime &&
@ -732,17 +729,17 @@ gimp_thumbnail_load_thumb (GimpThumbnail *thumbnail,
else
gimp_thumbnail_set_info_from_pixbuf (thumbnail, pixbuf);
cleanup:
if (state != thumbnail->thumb_state)
g_object_set (thumbnail, "thumb-state", state, NULL);
if (pixbuf && (state != GIMP_THUMB_STATE_OLD &&
state != GIMP_THUMB_STATE_OK))
finish:
if (state != GIMP_THUMB_STATE_OLD && state != GIMP_THUMB_STATE_OK)
{
g_object_unref (pixbuf);
return NULL;
pixbuf = NULL;
}
g_object_set (thumbnail,
"thumb-state", state,
NULL);
return pixbuf;
}
@ -924,3 +921,42 @@ gimp_thumbnail_save_failure (GimpThumbnail *thumbnail,
return success;
}
#ifdef THUMB_DEBUG
static void
gimp_thumbnail_debug_notify (GObject *object,
GParamSpec *pspec)
{
GValue value = { 0, };
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 = { 0, };
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