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gimp/app/widgets/gimpthumbbox.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <string.h>
#include <gtk/gtk.h>
#include "libgimpthumb/gimpthumb.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "config/gimpcoreconfig.h"
#include "core/gimp.h"
#include "core/gimpimagefile.h"
#include "file/file-utils.h"
#include "gimppreview.h"
#include "gimpthumbbox.h"
#include "gimpwidgets-utils.h"
#include "gimp-intl.h"
/* local function prototypes */
static void gimp_thumb_box_class_init (GimpThumbBoxClass *klass);
static void gimp_thumb_box_init (GimpThumbBox *box);
static void gimp_thumb_box_finalize (GObject *object);
static void gimp_thumb_box_style_set (GtkWidget *widget,
GtkStyle *prev_style);
static gboolean gimp_thumb_box_ebox_button_press (GtkWidget *widget,
GdkEventButton *bevent,
GimpThumbBox *box);
static void gimp_thumb_box_thumbnail_clicked (GtkWidget *widget,
GdkModifierType state,
GimpThumbBox *box);
static void gimp_thumb_box_imagefile_info_changed (GimpImagefile *imagefile,
GimpThumbBox *box);
static void gimp_thumb_box_create_thumbnails (GimpThumbBox *box,
gboolean always_create);
static void gimp_thumb_box_create_thumbnail (GimpThumbBox *box,
const gchar *uri,
GimpThumbnailSize size,
gboolean always_create);
/* private variables */
static GtkFrameClass *parent_class = NULL;
GType
gimp_thumb_box_get_type (void)
{
static GType box_type = 0;
if (! box_type)
{
static const GTypeInfo box_info =
{
sizeof (GimpThumbBoxClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gimp_thumb_box_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpThumbBox),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_thumb_box_init,
};
box_type = g_type_register_static (GTK_TYPE_FRAME,
"GimpThumbBox",
&box_info, 0);
}
return box_type;
}
static void
gimp_thumb_box_class_init (GimpThumbBoxClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->finalize = gimp_thumb_box_finalize;
widget_class->style_set = gimp_thumb_box_style_set;
}
static void
gimp_thumb_box_init (GimpThumbBox *box)
{
gtk_frame_set_shadow_type (GTK_FRAME (box), GTK_SHADOW_IN);
}
static void
gimp_thumb_box_finalize (GObject *object)
{
GimpThumbBox *box = GIMP_THUMB_BOX (object);
gimp_thumb_box_take_uris (box, NULL);
if (box->imagefile)
{
g_object_unref (box->imagefile);
box->imagefile = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_thumb_box_style_set (GtkWidget *widget,
GtkStyle *prev_style)
{
GimpThumbBox *box = GIMP_THUMB_BOX (widget);
GtkWidget *ebox;
GTK_WIDGET_CLASS (parent_class)->style_set (widget, prev_style);
gtk_widget_modify_bg (box->preview, GTK_STATE_NORMAL,
&widget->style->base[GTK_STATE_NORMAL]);
gtk_widget_modify_bg (box->preview, GTK_STATE_INSENSITIVE,
&widget->style->base[GTK_STATE_NORMAL]);
ebox = gtk_bin_get_child (GTK_BIN (widget));
gtk_widget_modify_bg (ebox, GTK_STATE_NORMAL,
&widget->style->base[GTK_STATE_NORMAL]);
gtk_widget_modify_bg (ebox, GTK_STATE_INSENSITIVE,
&widget->style->base[GTK_STATE_NORMAL]);
}
/* public functions */
GtkWidget *
gimp_thumb_box_new (Gimp *gimp)
{
GimpThumbBox *box;
GtkWidget *vbox;
GtkWidget *vbox2;
GtkWidget *ebox;
GtkWidget *hbox;
GtkWidget *button;
GtkWidget *label;
gchar *str;
GtkRequisition info_requisition;
GtkRequisition progress_requisition;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
box = g_object_new (GIMP_TYPE_THUMB_BOX, NULL);
ebox = gtk_event_box_new ();
gtk_container_add (GTK_CONTAINER (box), ebox);
gtk_widget_show (ebox);
g_signal_connect (ebox, "button_press_event",
G_CALLBACK (gimp_thumb_box_ebox_button_press),
box);
str = g_strdup_printf (_("Click to update preview\n"
"%s Click to force update even "
"if preview is up-to-date"),
gimp_get_mod_string (GDK_CONTROL_MASK));
gimp_help_set_help_data (ebox, str, NULL);
g_free (str);
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (ebox), vbox);
gtk_widget_show (vbox);
button = gtk_button_new ();
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
label = gtk_label_new_with_mnemonic (_("_Preview"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_container_add (GTK_CONTAINER (button), label);
gtk_widget_show (label);
g_signal_connect (button, "button_press_event",
G_CALLBACK (gtk_true),
NULL);
g_signal_connect (button, "button_release_event",
G_CALLBACK (gtk_true),
NULL);
g_signal_connect (button, "enter_notify_event",
G_CALLBACK (gtk_true),
NULL);
g_signal_connect (button, "leave_notify_event",
G_CALLBACK (gtk_true),
NULL);
vbox2 = gtk_vbox_new (FALSE, 2);
gtk_container_set_border_width (GTK_CONTAINER (vbox2), 2);
gtk_container_add (GTK_CONTAINER (vbox), vbox2);
gtk_widget_show (vbox2);
hbox = gtk_hbox_new (TRUE, 0);
gtk_box_pack_start (GTK_BOX (vbox2), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
box->imagefile = gimp_imagefile_new (gimp, NULL);
g_signal_connect (box->imagefile, "info_changed",
G_CALLBACK (gimp_thumb_box_imagefile_info_changed),
box);
box->preview = gimp_preview_new (GIMP_VIEWABLE (box->imagefile),
gimp->config->thumbnail_size, 0, FALSE);
gtk_box_pack_start (GTK_BOX (hbox), box->preview, TRUE, FALSE, 10);
gtk_widget_show (box->preview);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), box->preview);
g_signal_connect (box->preview, "clicked",
G_CALLBACK (gimp_thumb_box_thumbnail_clicked),
box);
box->filename = gtk_label_new (_("No selection"));
gtk_label_set_line_wrap (GTK_LABEL (box->filename), TRUE);
gtk_label_set_justify (GTK_LABEL (box->filename), GTK_JUSTIFY_CENTER);
gtk_box_pack_start (GTK_BOX (vbox2), box->filename, FALSE, FALSE, 0);
gtk_widget_show (box->filename);
box->info = gtk_label_new (" \n \n ");
gtk_misc_set_alignment (GTK_MISC (box->info), 0.5, 0.0);
gtk_label_set_justify (GTK_LABEL (box->info), GTK_JUSTIFY_CENTER);
gtk_box_pack_start (GTK_BOX (vbox2), box->info, FALSE, FALSE, 0);
gtk_widget_show (box->info);
box->progress = gtk_progress_bar_new ();
gtk_progress_bar_set_text (GTK_PROGRESS_BAR (box->progress), "foo");
gtk_box_pack_end (GTK_BOX (vbox2), box->progress, FALSE, FALSE, 0);
gtk_widget_set_no_show_all (box->progress, TRUE);
/* don't gtk_widget_show (box->progress); */
/* eek */
gtk_widget_size_request (box->info, &info_requisition);
gtk_widget_size_request (box->progress, &progress_requisition);
gtk_widget_set_size_request (box->info,
progress_requisition.width,
info_requisition.height);
gtk_widget_set_size_request (box->filename,
progress_requisition.width, -1);
return GTK_WIDGET (box);
}
void
gimp_thumb_box_set_uri (GimpThumbBox *box,
const gchar *uri)
{
g_return_if_fail (GIMP_IS_THUMB_BOX (box));
gimp_object_set_name (GIMP_OBJECT (box->imagefile), uri);
if (uri)
{
gchar *basename;
basename = file_utils_uri_to_utf8_basename (uri);
gtk_label_set_text (GTK_LABEL (box->filename), basename);
g_free (basename);
}
else
{
gtk_label_set_text (GTK_LABEL (box->filename), _("No selection"));
}
gtk_widget_set_sensitive (GTK_WIDGET (box), uri != NULL);
gimp_imagefile_update (box->imagefile);
}
void
gimp_thumb_box_take_uris (GimpThumbBox *box,
GSList *uris)
{
g_return_if_fail (GIMP_IS_THUMB_BOX (box));
if (box->uris)
{
g_slist_foreach (box->uris, (GFunc) g_free, NULL);
g_slist_free (box->uris);
box->uris = NULL;
}
box->uris = uris;
}
/* private functions */
static gboolean
gimp_thumb_box_ebox_button_press (GtkWidget *widget,
GdkEventButton *bevent,
GimpThumbBox *box)
{
gimp_thumb_box_thumbnail_clicked (widget, bevent->state, box);
return TRUE;
}
static void
gimp_thumb_box_thumbnail_clicked (GtkWidget *widget,
GdkModifierType state,
GimpThumbBox *box)
{
gimp_thumb_box_create_thumbnails (box,
(state & GDK_CONTROL_MASK) ? TRUE : FALSE);
}
static void
gimp_thumb_box_imagefile_info_changed (GimpImagefile *imagefile,
GimpThumbBox *box)
{
gtk_label_set_text (GTK_LABEL (box->info),
gimp_imagefile_get_desc_string (imagefile));
}
static void
gimp_thumb_box_create_thumbnails (GimpThumbBox *box,
gboolean always_create)
{
Gimp *gimp = box->imagefile->gimp;
if (gimp->config->thumbnail_size != GIMP_THUMBNAIL_SIZE_NONE &&
gimp->config->layer_previews)
{
GSList *list;
gint n_uris;
gint i;
gimp_set_busy (gimp);
gtk_widget_set_sensitive (gtk_widget_get_toplevel (GTK_WIDGET (box)),
FALSE);
n_uris = g_slist_length (box->uris);
if (n_uris > 1)
{
gchar *str;
gtk_progress_bar_set_text (GTK_PROGRESS_BAR (box->progress), NULL);
gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (box->progress), 0.0);
gtk_widget_hide (box->info);
gtk_widget_show (box->progress);
for (list = box->uris->next, i = 0;
list;
list = g_slist_next (list), i++)
{
str = g_strdup_printf (_("Thumbnail %d of %d"), i, n_uris);
gtk_progress_bar_set_text (GTK_PROGRESS_BAR (box->progress), str);
g_free (str);
while (g_main_context_pending (NULL))
g_main_context_iteration (NULL, FALSE);
gimp_thumb_box_create_thumbnail (box,
list->data,
gimp->config->thumbnail_size,
always_create);
gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (box->progress),
(gdouble) i /
(gdouble) n_uris);
while (g_main_context_pending (NULL))
g_main_context_iteration (NULL, FALSE);
}
str = g_strdup_printf (_("Thumbnail %d of %d"), n_uris, n_uris);
gtk_progress_bar_set_text (GTK_PROGRESS_BAR (box->progress), str);
g_free (str);
while (g_main_context_pending (NULL))
g_main_context_iteration (NULL, FALSE);
}
if (box->uris)
{
gimp_thumb_box_create_thumbnail (box,
box->uris->data,
gimp->config->thumbnail_size,
always_create);
if (n_uris > 1)
{
gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (box->progress),
1.0);
while (g_main_context_pending (NULL))
g_main_context_iteration (NULL, FALSE);
}
}
if (n_uris > 1)
{
gtk_widget_hide (box->progress);
gtk_widget_show (box->info);
}
gtk_widget_set_sensitive (gtk_widget_get_toplevel (GTK_WIDGET (box)),
TRUE);
gimp_unset_busy (gimp);
}
}
static void
gimp_thumb_box_create_thumbnail (GimpThumbBox *box,
const gchar *uri,
GimpThumbnailSize size,
gboolean always_create)
{
gchar *filename = g_filename_from_uri (uri, NULL, NULL);
if (filename && g_file_test (filename, G_FILE_TEST_IS_REGULAR))
{
gchar *basename = file_utils_uri_to_utf8_basename (uri);
gtk_label_set_text (GTK_LABEL (box->filename), basename);
g_free (basename);
gimp_object_set_name (GIMP_OBJECT (box->imagefile), uri);
if (always_create ||
gimp_thumbnail_peek_thumb (box->imagefile->thumbnail, size)
< GIMP_THUMB_STATE_FAILED)
{
gimp_imagefile_create_thumbnail (box->imagefile,
gimp_get_user_context (box->imagefile->gimp),
size);
}
}
g_free (filename);
}
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