1088 lines
33 KiB
C
1088 lines
33 KiB
C
/* PIKA - Photo and Image Kooker Application
|
||
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
|
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
|
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*
|
||
* Original copyright, applying to most contents (license remains unchanged):
|
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
|
||
*
|
||
* pikaimagefile.c
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*
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* Copyright (C) 2001-2004 Sven Neumann <sven@gimp.org>
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* Michael Natterer <mitch@gimp.org>
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||
*
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* This program is free software: you can redistribute it and/or modify
|
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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||
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#include "config.h"
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#include <string.h>
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||
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#include <gegl.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include "libpikabase/pikabase.h"
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#include "libpikathumb/pikathumb.h"
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#include "core-types.h"
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#include "config/pikacoreconfig.h"
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#include "gegl/pika-babl.h"
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#include "gegl/pika-gegl-utils.h"
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#include "pika.h"
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#include "pikacontainer.h"
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#include "pikacontext.h"
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#include "pikaimage.h"
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#include "pikaimagefile.h"
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#include "pikapickable.h"
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#include "pikaprogress.h"
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#include "file/file-open.h"
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#include "pika-intl.h"
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enum
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{
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INFO_CHANGED,
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LAST_SIGNAL
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||
};
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typedef struct _PikaImagefilePrivate PikaImagefilePrivate;
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struct _PikaImagefilePrivate
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{
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Pika *pika;
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GFile *file;
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PikaThumbnail *thumbnail;
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GIcon *icon;
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GCancellable *icon_cancellable;
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gchar *description;
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gboolean static_desc;
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};
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#define GET_PRIVATE(imagefile) ((PikaImagefilePrivate *) pika_imagefile_get_instance_private ((PikaImagefile *) (imagefile)))
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static void pika_imagefile_dispose (GObject *object);
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static void pika_imagefile_finalize (GObject *object);
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static void pika_imagefile_name_changed (PikaObject *object);
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static GdkPixbuf * pika_imagefile_get_new_pixbuf (PikaViewable *viewable,
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PikaContext *context,
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gint width,
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gint height);
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static gchar * pika_imagefile_get_description (PikaViewable *viewable,
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gchar **tooltip);
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static void pika_imagefile_info_changed (PikaImagefile *imagefile);
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static void pika_imagefile_notify_thumbnail (PikaImagefile *imagefile,
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GParamSpec *pspec);
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static void pika_imagefile_icon_callback (GObject *source_object,
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GAsyncResult *result,
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gpointer data);
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static GdkPixbuf * pika_imagefile_load_thumb (PikaImagefile *imagefile,
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gint width,
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gint height);
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static gboolean pika_imagefile_save_thumb (PikaImagefile *imagefile,
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PikaImage *image,
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gint size,
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gboolean replace,
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GError **error);
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static void pika_thumbnail_set_info_from_image (PikaThumbnail *thumbnail,
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const gchar *mime_type,
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PikaImage *image);
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static void pika_thumbnail_set_info (PikaThumbnail *thumbnail,
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const gchar *mime_type,
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gint width,
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gint height,
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const Babl *format,
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gint num_layers);
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G_DEFINE_TYPE_WITH_PRIVATE (PikaImagefile, pika_imagefile, PIKA_TYPE_VIEWABLE)
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#define parent_class pika_imagefile_parent_class
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static guint pika_imagefile_signals[LAST_SIGNAL] = { 0 };
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static void
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pika_imagefile_class_init (PikaImagefileClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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PikaObjectClass *pika_object_class = PIKA_OBJECT_CLASS (klass);
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PikaViewableClass *viewable_class = PIKA_VIEWABLE_CLASS (klass);
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gchar *creator;
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pika_imagefile_signals[INFO_CHANGED] =
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g_signal_new ("info-changed",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (PikaImagefileClass, info_changed),
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NULL, NULL, NULL,
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G_TYPE_NONE, 0);
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object_class->dispose = pika_imagefile_dispose;
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object_class->finalize = pika_imagefile_finalize;
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pika_object_class->name_changed = pika_imagefile_name_changed;
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viewable_class->name_changed_signal = "info-changed";
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viewable_class->get_new_pixbuf = pika_imagefile_get_new_pixbuf;
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viewable_class->get_description = pika_imagefile_get_description;
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g_type_class_ref (PIKA_TYPE_IMAGE_TYPE);
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creator = g_strdup_printf ("pika-%d.%d",
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PIKA_MAJOR_VERSION, PIKA_MINOR_VERSION);
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pika_thumb_init (creator, NULL);
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g_free (creator);
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}
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static void
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pika_imagefile_init (PikaImagefile *imagefile)
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{
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PikaImagefilePrivate *private = GET_PRIVATE (imagefile);
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private->thumbnail = pika_thumbnail_new ();
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g_signal_connect_object (private->thumbnail, "notify",
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G_CALLBACK (pika_imagefile_notify_thumbnail),
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imagefile, G_CONNECT_SWAPPED);
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}
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static void
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pika_imagefile_dispose (GObject *object)
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{
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PikaImagefilePrivate *private = GET_PRIVATE (object);
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if (private->icon_cancellable)
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{
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g_cancellable_cancel (private->icon_cancellable);
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g_clear_object (&private->icon_cancellable);
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}
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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pika_imagefile_finalize (GObject *object)
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{
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PikaImagefilePrivate *private = GET_PRIVATE (object);
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if (private->description)
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{
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if (! private->static_desc)
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g_free (private->description);
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private->description = NULL;
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}
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g_clear_object (&private->thumbnail);
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g_clear_object (&private->icon);
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g_clear_object (&private->file);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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pika_imagefile_name_changed (PikaObject *object)
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{
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PikaImagefilePrivate *private = GET_PRIVATE (object);
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if (PIKA_OBJECT_CLASS (parent_class)->name_changed)
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PIKA_OBJECT_CLASS (parent_class)->name_changed (object);
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pika_thumbnail_set_uri (private->thumbnail, pika_object_get_name (object));
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g_clear_object (&private->file);
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if (pika_object_get_name (object))
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private->file = g_file_new_for_uri (pika_object_get_name (object));
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}
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static GdkPixbuf *
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pika_imagefile_get_new_pixbuf (PikaViewable *viewable,
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PikaContext *context,
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gint width,
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gint height)
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{
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PikaImagefile *imagefile = PIKA_IMAGEFILE (viewable);
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if (! pika_object_get_name (imagefile))
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return NULL;
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return pika_imagefile_load_thumb (imagefile, width, height);
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}
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static gchar *
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pika_imagefile_get_description (PikaViewable *viewable,
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gchar **tooltip)
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{
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PikaImagefile *imagefile = PIKA_IMAGEFILE (viewable);
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PikaImagefilePrivate *private = GET_PRIVATE (imagefile);
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PikaThumbnail *thumbnail = private->thumbnail;
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gchar *basename;
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if (! private->file)
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return NULL;
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if (tooltip)
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{
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const gchar *name;
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const gchar *desc;
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name = pika_file_get_utf8_name (private->file);
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desc = pika_imagefile_get_desc_string (imagefile);
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if (desc)
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*tooltip = g_strdup_printf ("%s\n%s", name, desc);
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else
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*tooltip = g_strdup (name);
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}
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basename = g_path_get_basename (pika_file_get_utf8_name (private->file));
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if (thumbnail->image_width > 0 && thumbnail->image_height > 0)
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{
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gchar *tmp = basename;
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basename = g_strdup_printf ("%s (%d × %d)",
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tmp,
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thumbnail->image_width,
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thumbnail->image_height);
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g_free (tmp);
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}
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return basename;
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}
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/* public functions */
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||
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PikaImagefile *
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pika_imagefile_new (Pika *pika,
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GFile *file)
|
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{
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||
PikaImagefile *imagefile;
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g_return_val_if_fail (PIKA_IS_PIKA (pika), NULL);
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g_return_val_if_fail (file == NULL || G_IS_FILE (file), NULL);
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imagefile = g_object_new (PIKA_TYPE_IMAGEFILE, NULL);
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GET_PRIVATE (imagefile)->pika = pika;
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if (file)
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{
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pika_object_take_name (PIKA_OBJECT (imagefile), g_file_get_uri (file));
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/* file member gets created by pika_imagefile_name_changed() */
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}
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return imagefile;
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}
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GFile *
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pika_imagefile_get_file (PikaImagefile *imagefile)
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{
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g_return_val_if_fail (PIKA_IS_IMAGEFILE (imagefile), NULL);
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return GET_PRIVATE (imagefile)->file;
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}
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void
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pika_imagefile_set_file (PikaImagefile *imagefile,
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GFile *file)
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{
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g_return_if_fail (PIKA_IS_IMAGEFILE (imagefile));
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g_return_if_fail (file == NULL || G_IS_FILE (file));
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if (GET_PRIVATE (imagefile)->file != file)
|
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{
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pika_object_take_name (PIKA_OBJECT (imagefile),
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file ? g_file_get_uri (file) : NULL);
|
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}
|
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}
|
||
|
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PikaThumbnail *
|
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pika_imagefile_get_thumbnail (PikaImagefile *imagefile)
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{
|
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g_return_val_if_fail (PIKA_IS_IMAGEFILE (imagefile), NULL);
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||
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return GET_PRIVATE (imagefile)->thumbnail;
|
||
}
|
||
|
||
GIcon *
|
||
pika_imagefile_get_gicon (PikaImagefile *imagefile)
|
||
{
|
||
PikaImagefilePrivate *private;
|
||
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g_return_val_if_fail (PIKA_IS_IMAGEFILE (imagefile), NULL);
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||
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private = GET_PRIVATE (imagefile);
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||
|
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if (private->icon)
|
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return private->icon;
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||
|
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if (private->file && ! private->icon_cancellable)
|
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{
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||
private->icon_cancellable = g_cancellable_new ();
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||
|
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g_file_query_info_async (private->file, "standard::icon",
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G_FILE_QUERY_INFO_NONE,
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G_PRIORITY_DEFAULT,
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private->icon_cancellable,
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pika_imagefile_icon_callback,
|
||
imagefile);
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
void
|
||
pika_imagefile_set_mime_type (PikaImagefile *imagefile,
|
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const gchar *mime_type)
|
||
{
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g_return_if_fail (PIKA_IS_IMAGEFILE (imagefile));
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g_object_set (GET_PRIVATE (imagefile)->thumbnail,
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"image-mimetype", mime_type,
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NULL);
|
||
}
|
||
|
||
void
|
||
pika_imagefile_update (PikaImagefile *imagefile)
|
||
{
|
||
PikaImagefilePrivate *private;
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||
gchar *uri;
|
||
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g_return_if_fail (PIKA_IS_IMAGEFILE (imagefile));
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||
|
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private = GET_PRIVATE (imagefile);
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||
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pika_viewable_invalidate_preview (PIKA_VIEWABLE (imagefile));
|
||
|
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g_object_get (private->thumbnail,
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"image-uri", &uri,
|
||
NULL);
|
||
|
||
if (uri)
|
||
{
|
||
PikaImagefile *documents_imagefile = (PikaImagefile *)
|
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pika_container_get_child_by_name (private->pika->documents, uri);
|
||
|
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if (documents_imagefile != imagefile &&
|
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PIKA_IS_IMAGEFILE (documents_imagefile))
|
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pika_viewable_invalidate_preview (PIKA_VIEWABLE (documents_imagefile));
|
||
|
||
g_free (uri);
|
||
}
|
||
}
|
||
|
||
gboolean
|
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pika_imagefile_create_thumbnail (PikaImagefile *imagefile,
|
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PikaContext *context,
|
||
PikaProgress *progress,
|
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gint size,
|
||
gboolean replace,
|
||
GError **error)
|
||
{
|
||
PikaImagefilePrivate *private;
|
||
PikaThumbnail *thumbnail;
|
||
PikaThumbState image_state;
|
||
|
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g_return_val_if_fail (PIKA_IS_IMAGEFILE (imagefile), FALSE);
|
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g_return_val_if_fail (PIKA_IS_CONTEXT (context), FALSE);
|
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g_return_val_if_fail (progress == NULL || PIKA_IS_PROGRESS (progress), FALSE);
|
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g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
|
||
|
||
/* thumbnailing is disabled, we successfully did nothing */
|
||
if (size < 1)
|
||
return TRUE;
|
||
|
||
private = GET_PRIVATE (imagefile);
|
||
|
||
thumbnail = private->thumbnail;
|
||
|
||
pika_thumbnail_set_uri (thumbnail,
|
||
pika_object_get_name (imagefile));
|
||
|
||
image_state = pika_thumbnail_peek_image (thumbnail);
|
||
|
||
if (image_state == PIKA_THUMB_STATE_REMOTE ||
|
||
image_state >= PIKA_THUMB_STATE_EXISTS)
|
||
{
|
||
PikaImage *image;
|
||
gboolean success;
|
||
gint width = 0;
|
||
gint height = 0;
|
||
const gchar *mime_type = NULL;
|
||
const Babl *format = NULL;
|
||
gint num_layers = -1;
|
||
|
||
/* we only want to attempt thumbnailing on readable, regular files */
|
||
if (g_file_is_native (private->file))
|
||
{
|
||
GFileInfo *file_info;
|
||
gboolean regular;
|
||
gboolean readable;
|
||
|
||
file_info = g_file_query_info (private->file,
|
||
G_FILE_ATTRIBUTE_STANDARD_TYPE ","
|
||
G_FILE_ATTRIBUTE_ACCESS_CAN_READ,
|
||
G_FILE_QUERY_INFO_NONE,
|
||
NULL, NULL);
|
||
|
||
regular = (g_file_info_get_attribute_uint32 (file_info, G_FILE_ATTRIBUTE_STANDARD_TYPE) == G_FILE_TYPE_REGULAR);
|
||
readable = g_file_info_get_attribute_boolean (file_info,
|
||
G_FILE_ATTRIBUTE_ACCESS_CAN_READ);
|
||
|
||
g_object_unref (file_info);
|
||
|
||
if (! (regular && readable))
|
||
return TRUE;
|
||
}
|
||
|
||
g_object_ref (imagefile);
|
||
|
||
image = file_open_thumbnail (private->pika, context, progress,
|
||
private->file, size,
|
||
&mime_type, &width, &height,
|
||
&format, &num_layers, error);
|
||
|
||
if (image)
|
||
{
|
||
pika_thumbnail_set_info (private->thumbnail,
|
||
mime_type, width, height,
|
||
format, num_layers);
|
||
}
|
||
else
|
||
{
|
||
PikaPDBStatusType status;
|
||
|
||
if (error && *error)
|
||
{
|
||
g_printerr ("Info: Thumbnail load procedure failed: %s\n"
|
||
" Falling back to file load procedure.\n",
|
||
(*error)->message);
|
||
g_clear_error (error);
|
||
}
|
||
|
||
image = file_open_image (private->pika, context, progress,
|
||
private->file,
|
||
FALSE, NULL, PIKA_RUN_NONINTERACTIVE,
|
||
&status, &mime_type, error);
|
||
|
||
if (image)
|
||
pika_thumbnail_set_info_from_image (private->thumbnail,
|
||
mime_type, image);
|
||
}
|
||
|
||
if (image)
|
||
{
|
||
success = pika_imagefile_save_thumb (imagefile,
|
||
image, size, replace,
|
||
error);
|
||
|
||
g_object_unref (image);
|
||
}
|
||
else
|
||
{
|
||
/* If the error object is already set (i.e. we have an error
|
||
* message for why the thumbnail creation failed), this is the
|
||
* error we want to return. Ignore any error from failed
|
||
* thumbnail saving.
|
||
*/
|
||
pika_thumbnail_save_failure (thumbnail,
|
||
"PIKA " PIKA_VERSION,
|
||
error && *error ? NULL : error);
|
||
pika_imagefile_update (imagefile);
|
||
success = FALSE;
|
||
}
|
||
|
||
g_object_unref (imagefile);
|
||
|
||
if (! success)
|
||
{
|
||
g_object_set (thumbnail,
|
||
"thumb-state", PIKA_THUMB_STATE_FAILED,
|
||
NULL);
|
||
}
|
||
|
||
return success;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* The weak version doesn't ref the imagefile but deals gracefully
|
||
* with an imagefile that is destroyed while the thumbnail is
|
||
* created. This allows one to use this function w/o the need to
|
||
* block the user interface.
|
||
*/
|
||
void
|
||
pika_imagefile_create_thumbnail_weak (PikaImagefile *imagefile,
|
||
PikaContext *context,
|
||
PikaProgress *progress,
|
||
gint size,
|
||
gboolean replace)
|
||
{
|
||
PikaImagefilePrivate *private;
|
||
PikaImagefile *local;
|
||
|
||
g_return_if_fail (PIKA_IS_IMAGEFILE (imagefile));
|
||
|
||
if (size < 1)
|
||
return;
|
||
|
||
private = GET_PRIVATE (imagefile);
|
||
|
||
if (! private->file)
|
||
return;
|
||
|
||
local = pika_imagefile_new (private->pika, private->file);
|
||
|
||
g_object_add_weak_pointer (G_OBJECT (imagefile), (gpointer) &imagefile);
|
||
|
||
if (! pika_imagefile_create_thumbnail (local, context, progress, size, replace,
|
||
NULL))
|
||
{
|
||
/* The weak version works on a local copy so the thumbnail
|
||
* status of the actual image is not properly updated in case of
|
||
* creation failure, thus it would end up in a generic
|
||
* PIKA_THUMB_STATE_NOT_FOUND, which is less informative.
|
||
*/
|
||
g_object_set (private->thumbnail,
|
||
"thumb-state", PIKA_THUMB_STATE_FAILED,
|
||
NULL);
|
||
}
|
||
|
||
if (imagefile)
|
||
{
|
||
GFile *file = pika_imagefile_get_file (imagefile);
|
||
|
||
if (file && g_file_equal (file, pika_imagefile_get_file (local)))
|
||
{
|
||
pika_imagefile_update (imagefile);
|
||
}
|
||
|
||
g_object_remove_weak_pointer (G_OBJECT (imagefile),
|
||
(gpointer) &imagefile);
|
||
}
|
||
|
||
g_object_unref (local);
|
||
}
|
||
|
||
gboolean
|
||
pika_imagefile_check_thumbnail (PikaImagefile *imagefile)
|
||
{
|
||
PikaImagefilePrivate *private;
|
||
gint size;
|
||
|
||
g_return_val_if_fail (PIKA_IS_IMAGEFILE (imagefile), FALSE);
|
||
|
||
private = GET_PRIVATE (imagefile);
|
||
|
||
size = private->pika->config->thumbnail_size;
|
||
|
||
if (size > 0)
|
||
{
|
||
PikaThumbState state;
|
||
|
||
state = pika_thumbnail_check_thumb (private->thumbnail, size);
|
||
|
||
return (state == PIKA_THUMB_STATE_OK);
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
gboolean
|
||
pika_imagefile_save_thumbnail (PikaImagefile *imagefile,
|
||
const gchar *mime_type,
|
||
PikaImage *image,
|
||
GError **error)
|
||
{
|
||
PikaImagefilePrivate *private;
|
||
gint size;
|
||
gboolean success = TRUE;
|
||
|
||
g_return_val_if_fail (PIKA_IS_IMAGEFILE (imagefile), FALSE);
|
||
g_return_val_if_fail (PIKA_IS_IMAGE (image), FALSE);
|
||
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
|
||
|
||
private = GET_PRIVATE (imagefile);
|
||
|
||
size = private->pika->config->thumbnail_size;
|
||
|
||
if (size > 0)
|
||
{
|
||
pika_thumbnail_set_info_from_image (private->thumbnail,
|
||
mime_type, image);
|
||
|
||
success = pika_imagefile_save_thumb (imagefile,
|
||
image, size, FALSE,
|
||
error);
|
||
}
|
||
|
||
return success;
|
||
}
|
||
|
||
|
||
/* private functions */
|
||
|
||
static void
|
||
pika_imagefile_info_changed (PikaImagefile *imagefile)
|
||
{
|
||
PikaImagefilePrivate *private = GET_PRIVATE (imagefile);
|
||
|
||
if (private->description)
|
||
{
|
||
if (! private->static_desc)
|
||
g_free (private->description);
|
||
|
||
private->description = NULL;
|
||
}
|
||
|
||
g_clear_object (&private->icon);
|
||
|
||
g_signal_emit (imagefile, pika_imagefile_signals[INFO_CHANGED], 0);
|
||
}
|
||
|
||
static void
|
||
pika_imagefile_notify_thumbnail (PikaImagefile *imagefile,
|
||
GParamSpec *pspec)
|
||
{
|
||
if (strcmp (pspec->name, "image-state") == 0 ||
|
||
strcmp (pspec->name, "thumb-state") == 0)
|
||
{
|
||
pika_imagefile_info_changed (imagefile);
|
||
}
|
||
}
|
||
|
||
static void
|
||
pika_imagefile_icon_callback (GObject *source_object,
|
||
GAsyncResult *result,
|
||
gpointer data)
|
||
{
|
||
PikaImagefile *imagefile;
|
||
PikaImagefilePrivate *private;
|
||
GFile *file = G_FILE (source_object);
|
||
GError *error = NULL;
|
||
GFileInfo *file_info;
|
||
|
||
file_info = g_file_query_info_finish (file, result, &error);
|
||
|
||
if (error)
|
||
{
|
||
/* we were cancelled from dispose() and the imagefile is
|
||
* long gone, bail out
|
||
*/
|
||
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
|
||
{
|
||
g_clear_error (&error);
|
||
return;
|
||
}
|
||
|
||
#ifdef PIKA_UNSTABLE
|
||
g_printerr ("%s: %s\n", G_STRFUNC, error->message);
|
||
#endif
|
||
|
||
g_clear_error (&error);
|
||
}
|
||
|
||
imagefile = PIKA_IMAGEFILE (data);
|
||
private = GET_PRIVATE (imagefile);
|
||
|
||
if (file_info)
|
||
{
|
||
private->icon = g_object_ref (G_ICON (g_file_info_get_attribute_object (file_info, G_FILE_ATTRIBUTE_STANDARD_ICON)));
|
||
g_object_unref (file_info);
|
||
}
|
||
|
||
g_clear_object (&private->icon_cancellable);
|
||
|
||
if (private->icon)
|
||
pika_viewable_invalidate_preview (PIKA_VIEWABLE (imagefile));
|
||
}
|
||
|
||
const gchar *
|
||
pika_imagefile_get_desc_string (PikaImagefile *imagefile)
|
||
{
|
||
PikaImagefilePrivate *private;
|
||
PikaThumbnail *thumbnail;
|
||
|
||
g_return_val_if_fail (PIKA_IS_IMAGEFILE (imagefile), NULL);
|
||
|
||
private = GET_PRIVATE (imagefile);
|
||
|
||
if (private->description)
|
||
return (const gchar *) private->description;
|
||
|
||
thumbnail = private->thumbnail;
|
||
|
||
switch (thumbnail->image_state)
|
||
{
|
||
case PIKA_THUMB_STATE_UNKNOWN:
|
||
private->description = NULL;
|
||
private->static_desc = TRUE;
|
||
break;
|
||
|
||
case PIKA_THUMB_STATE_FOLDER:
|
||
private->description = (gchar *) _("Folder");
|
||
private->static_desc = TRUE;
|
||
break;
|
||
|
||
case PIKA_THUMB_STATE_SPECIAL:
|
||
private->description = (gchar *) _("Special File");
|
||
private->static_desc = TRUE;
|
||
break;
|
||
|
||
case PIKA_THUMB_STATE_NOT_FOUND:
|
||
private->description =
|
||
(gchar *) g_strerror (thumbnail->image_not_found_errno);
|
||
private->static_desc = TRUE;
|
||
break;
|
||
|
||
default:
|
||
{
|
||
GString *str = g_string_new (NULL);
|
||
|
||
if (thumbnail->image_state == PIKA_THUMB_STATE_REMOTE)
|
||
{
|
||
g_string_append (str, _("Remote File"));
|
||
}
|
||
|
||
if (thumbnail->image_filesize > 0)
|
||
{
|
||
gchar *size = g_format_size (thumbnail->image_filesize);
|
||
|
||
if (str->len > 0)
|
||
g_string_append_c (str, '\n');
|
||
|
||
g_string_append (str, size);
|
||
g_free (size);
|
||
}
|
||
|
||
switch (thumbnail->thumb_state)
|
||
{
|
||
case PIKA_THUMB_STATE_NOT_FOUND:
|
||
if (str->len > 0)
|
||
g_string_append_c (str, '\n');
|
||
g_string_append (str, _("Click to create preview"));
|
||
break;
|
||
|
||
case PIKA_THUMB_STATE_EXISTS:
|
||
if (str->len > 0)
|
||
g_string_append_c (str, '\n');
|
||
g_string_append (str, _("Loading preview..."));
|
||
break;
|
||
|
||
case PIKA_THUMB_STATE_OLD:
|
||
if (str->len > 0)
|
||
g_string_append_c (str, '\n');
|
||
g_string_append (str, _("Preview is out of date"));
|
||
break;
|
||
|
||
case PIKA_THUMB_STATE_FAILED:
|
||
if (str->len > 0)
|
||
g_string_append_c (str, '\n');
|
||
g_string_append (str, _("Cannot create preview"));
|
||
break;
|
||
|
||
case PIKA_THUMB_STATE_OK:
|
||
{
|
||
if (thumbnail->image_state == PIKA_THUMB_STATE_REMOTE)
|
||
{
|
||
if (str->len > 0)
|
||
g_string_append_c (str, '\n');
|
||
|
||
g_string_append (str, _("(Preview may be out of date)"));
|
||
}
|
||
|
||
if (thumbnail->image_width > 0 && thumbnail->image_height > 0)
|
||
{
|
||
if (str->len > 0)
|
||
g_string_append_c (str, '\n');
|
||
|
||
g_string_append_printf (str,
|
||
ngettext ("%d × %d pixel",
|
||
"%d × %d pixels",
|
||
thumbnail->image_height),
|
||
thumbnail->image_width,
|
||
thumbnail->image_height);
|
||
}
|
||
|
||
if (thumbnail->image_type)
|
||
{
|
||
if (str->len > 0)
|
||
g_string_append_c (str, '\n');
|
||
|
||
g_string_append (str, gettext (thumbnail->image_type));
|
||
}
|
||
|
||
if (thumbnail->image_num_layers > 0)
|
||
{
|
||
if (thumbnail->image_type)
|
||
g_string_append_len (str, ", ", 2);
|
||
else if (str->len > 0)
|
||
g_string_append_c (str, '\n');
|
||
|
||
g_string_append_printf (str,
|
||
ngettext ("%d layer",
|
||
"%d layers",
|
||
thumbnail->image_num_layers),
|
||
thumbnail->image_num_layers);
|
||
}
|
||
}
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
|
||
private->description = g_string_free (str, FALSE);
|
||
private->static_desc = FALSE;
|
||
}
|
||
}
|
||
|
||
return (const gchar *) private->description;
|
||
}
|
||
|
||
static GdkPixbuf *
|
||
pika_imagefile_load_thumb (PikaImagefile *imagefile,
|
||
gint width,
|
||
gint height)
|
||
{
|
||
PikaImagefilePrivate *private = GET_PRIVATE (imagefile);
|
||
PikaThumbnail *thumbnail = private->thumbnail;
|
||
GdkPixbuf *pixbuf = NULL;
|
||
GError *error = NULL;
|
||
gint size = MAX (width, height);
|
||
gint pixbuf_width;
|
||
gint pixbuf_height;
|
||
gint preview_width;
|
||
gint preview_height;
|
||
|
||
if (pika_thumbnail_peek_thumb (thumbnail, size) < PIKA_THUMB_STATE_EXISTS)
|
||
return NULL;
|
||
|
||
if (thumbnail->image_state == PIKA_THUMB_STATE_NOT_FOUND)
|
||
return NULL;
|
||
|
||
pixbuf = pika_thumbnail_load_thumb (thumbnail, size, &error);
|
||
|
||
if (! pixbuf)
|
||
{
|
||
if (error)
|
||
{
|
||
pika_message (private->pika, NULL, PIKA_MESSAGE_ERROR,
|
||
_("Could not open thumbnail '%s': %s"),
|
||
thumbnail->thumb_filename, error->message);
|
||
g_clear_error (&error);
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
pixbuf_width = gdk_pixbuf_get_width (pixbuf);
|
||
pixbuf_height = gdk_pixbuf_get_height (pixbuf);
|
||
|
||
pika_viewable_calc_preview_size (pixbuf_width,
|
||
pixbuf_height,
|
||
width,
|
||
height,
|
||
TRUE, 1.0, 1.0,
|
||
&preview_width,
|
||
&preview_height,
|
||
NULL);
|
||
|
||
if (preview_width < pixbuf_width || preview_height < pixbuf_height)
|
||
{
|
||
GdkPixbuf *scaled = gdk_pixbuf_scale_simple (pixbuf,
|
||
preview_width,
|
||
preview_height,
|
||
GDK_INTERP_BILINEAR);
|
||
g_object_unref (pixbuf);
|
||
pixbuf = scaled;
|
||
|
||
pixbuf_width = preview_width;
|
||
pixbuf_height = preview_height;
|
||
}
|
||
|
||
if (gdk_pixbuf_get_n_channels (pixbuf) != 3)
|
||
{
|
||
GdkPixbuf *tmp = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8,
|
||
pixbuf_width, pixbuf_height);
|
||
|
||
gdk_pixbuf_composite_color (pixbuf, tmp,
|
||
0, 0, pixbuf_width, pixbuf_height,
|
||
0.0, 0.0, 1.0, 1.0,
|
||
GDK_INTERP_NEAREST, 255,
|
||
0, 0, PIKA_CHECK_SIZE_SM,
|
||
0x66666666, 0x99999999);
|
||
|
||
g_object_unref (pixbuf);
|
||
pixbuf = tmp;
|
||
}
|
||
|
||
return pixbuf;
|
||
}
|
||
|
||
static gboolean
|
||
pika_imagefile_save_thumb (PikaImagefile *imagefile,
|
||
PikaImage *image,
|
||
gint size,
|
||
gboolean replace,
|
||
GError **error)
|
||
{
|
||
PikaImagefilePrivate *private = GET_PRIVATE (imagefile);
|
||
PikaThumbnail *thumbnail = private->thumbnail;
|
||
GdkPixbuf *pixbuf;
|
||
gint width, height;
|
||
gboolean success = FALSE;
|
||
|
||
if (size < 1)
|
||
return TRUE;
|
||
|
||
if (pika_image_get_width (image) <= size &&
|
||
pika_image_get_height (image) <= size)
|
||
{
|
||
width = pika_image_get_width (image);
|
||
height = pika_image_get_height (image);
|
||
|
||
size = MAX (width, height);
|
||
}
|
||
else
|
||
{
|
||
if (pika_image_get_width (image) < pika_image_get_height (image))
|
||
{
|
||
height = size;
|
||
width = MAX (1, (size * pika_image_get_width (image) /
|
||
pika_image_get_height (image)));
|
||
}
|
||
else
|
||
{
|
||
width = size;
|
||
height = MAX (1, (size * pika_image_get_height (image) /
|
||
pika_image_get_width (image)));
|
||
}
|
||
}
|
||
|
||
/* we need the projection constructed NOW, not some time later */
|
||
pika_pickable_flush (PIKA_PICKABLE (image));
|
||
|
||
pixbuf = pika_viewable_get_new_pixbuf (PIKA_VIEWABLE (image),
|
||
/* random context, unused */
|
||
pika_get_user_context (image->pika),
|
||
width, height);
|
||
|
||
/* when layer previews are disabled, we won't get a pixbuf */
|
||
if (! pixbuf)
|
||
return TRUE;
|
||
|
||
success = pika_thumbnail_save_thumb (thumbnail,
|
||
pixbuf,
|
||
"PIKA " PIKA_VERSION,
|
||
error);
|
||
|
||
g_object_unref (pixbuf);
|
||
|
||
if (success)
|
||
{
|
||
if (replace)
|
||
pika_thumbnail_delete_others (thumbnail, size);
|
||
else
|
||
pika_thumbnail_delete_failure (thumbnail);
|
||
|
||
pika_imagefile_update (imagefile);
|
||
}
|
||
|
||
return success;
|
||
}
|
||
|
||
static void
|
||
pika_thumbnail_set_info_from_image (PikaThumbnail *thumbnail,
|
||
const gchar *mime_type,
|
||
PikaImage *image)
|
||
{
|
||
const Babl *format;
|
||
|
||
/* peek the thumbnail to make sure that mtime and filesize are set */
|
||
pika_thumbnail_peek_image (thumbnail);
|
||
|
||
format = pika_image_get_layer_format (image,
|
||
pika_image_has_alpha (image));
|
||
|
||
g_object_set (thumbnail,
|
||
"image-mimetype", mime_type,
|
||
"image-width", pika_image_get_width (image),
|
||
"image-height", pika_image_get_height (image),
|
||
"image-type", pika_babl_format_get_description (format),
|
||
"image-num-layers", pika_image_get_n_layers (image),
|
||
NULL);
|
||
}
|
||
|
||
/**
|
||
* pika_thumbnail_set_info:
|
||
* @thumbnail: #PikaThumbnail object
|
||
* @mime_type: MIME type of the image associated with this thumbnail
|
||
* @width: width of the image associated with this thumbnail
|
||
* @height: height of the image associated with this thumbnail
|
||
* @format: format of the image (or NULL if the type is not known)
|
||
* @num_layers: number of layers in the image
|
||
* (or -1 if the number of layers is not known)
|
||
*
|
||
* Set information about the image associated with the @thumbnail object.
|
||
*/
|
||
static void
|
||
pika_thumbnail_set_info (PikaThumbnail *thumbnail,
|
||
const gchar *mime_type,
|
||
gint width,
|
||
gint height,
|
||
const Babl *format,
|
||
gint num_layers)
|
||
{
|
||
/* peek the thumbnail to make sure that mtime and filesize are set */
|
||
pika_thumbnail_peek_image (thumbnail);
|
||
|
||
g_object_set (thumbnail,
|
||
"image-mimetype", mime_type,
|
||
"image-width", width,
|
||
"image-height", height,
|
||
NULL);
|
||
|
||
if (format)
|
||
g_object_set (thumbnail,
|
||
"image-type", pika_babl_format_get_description (format),
|
||
NULL);
|
||
|
||
if (num_layers != -1)
|
||
g_object_set (thumbnail,
|
||
"image-num-layers", num_layers,
|
||
NULL);
|
||
}
|
