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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 "libgimpbase/gimpbase.h"
#include "libgimpthumb/gimpthumb.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "config/gimpcoreconfig.h"
#include "core/gimp.h"
#include "core/gimpcontext.h"
#include "core/gimpimagefile.h"
#include "core/gimpprogress.h"
#include "plug-in/gimppluginmanager.h"
#include "file/file-utils.h"
#include "gimpfiledialog.h" /* eek */
#include "gimpthumbbox.h"
#include "gimpview.h"
#include "gimpviewrenderer-frame.h"
#include "gimpwidgets-utils.h"
#include "gimp-intl.h"
/* local function prototypes */
static void gimp_thumb_box_progress_iface_init (GimpProgressInterface *iface);
static void gimp_thumb_box_dispose (GObject *object);
static void gimp_thumb_box_finalize (GObject *object);
static void gimp_thumb_box_style_set (GtkWidget *widget,
GtkStyle *prev_style);
static GimpProgress *
gimp_thumb_box_progress_start (GimpProgress *progress,
const gchar *message,
gboolean cancelable);
static void gimp_thumb_box_progress_end (GimpProgress *progress);
static gboolean gimp_thumb_box_progress_is_active (GimpProgress *progress);
static void gimp_thumb_box_progress_set_value (GimpProgress *progress,
gdouble percentage);
static gdouble gimp_thumb_box_progress_get_value (GimpProgress *progress);
static void gimp_thumb_box_progress_pulse (GimpProgress *progress);
static gboolean gimp_thumb_box_progress_message (GimpProgress *progress,
Gimp *gimp,
GimpMessageSeverity severity,
const gchar *domain,
const gchar *message);
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_thumb_state_notify (GimpThumbnail *thumb,
GParamSpec *pspec,
GimpThumbBox *box);
static void gimp_thumb_box_create_thumbnails (GimpThumbBox *box,
gboolean force);
static void gimp_thumb_box_create_thumbnail (GimpThumbBox *box,
const gchar *uri,
GimpThumbnailSize size,
gboolean force);
static gboolean gimp_thumb_box_auto_thumbnail (GimpThumbBox *box);
G_DEFINE_TYPE_WITH_CODE (GimpThumbBox, gimp_thumb_box, GTK_TYPE_FRAME,
G_IMPLEMENT_INTERFACE (GIMP_TYPE_PROGRESS,
gimp_thumb_box_progress_iface_init))
#define parent_class gimp_thumb_box_parent_class
static void
gimp_thumb_box_class_init (GimpThumbBoxClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
object_class->dispose = gimp_thumb_box_dispose;
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);
box->idle_id = 0;
}
static void
gimp_thumb_box_progress_iface_init (GimpProgressInterface *iface)
{
iface->start = gimp_thumb_box_progress_start;
iface->end = gimp_thumb_box_progress_end;
iface->is_active = gimp_thumb_box_progress_is_active;
iface->set_value = gimp_thumb_box_progress_set_value;
iface->get_value = gimp_thumb_box_progress_get_value;
iface->pulse = gimp_thumb_box_progress_pulse;
iface->message = gimp_thumb_box_progress_message;
}
static void
gimp_thumb_box_dispose (GObject *object)
{
GimpThumbBox *box = GIMP_THUMB_BOX (object);
if (box->idle_id)
{
g_source_remove (box->idle_id);
box->idle_id = 0;
}
G_OBJECT_CLASS (parent_class)->dispose (object);
}
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]);
}
static GimpProgress *
gimp_thumb_box_progress_start (GimpProgress *progress,
const gchar *message,
gboolean cancelable)
{
GimpThumbBox *box = GIMP_THUMB_BOX (progress);
if (! box->progress_active)
{
GtkProgressBar *bar = GTK_PROGRESS_BAR (box->progress);
gtk_progress_bar_set_fraction (bar, 0.0);
box->progress_active = TRUE;
return progress;
}
return NULL;
}
static void
gimp_thumb_box_progress_end (GimpProgress *progress)
{
GimpThumbBox *box = GIMP_THUMB_BOX (progress);
if (box->progress_active)
{
GtkProgressBar *bar = GTK_PROGRESS_BAR (box->progress);
gtk_progress_bar_set_fraction (bar, 0.0);
box->progress_active = FALSE;
}
}
static gboolean
gimp_thumb_box_progress_is_active (GimpProgress *progress)
{
GimpThumbBox *box = GIMP_THUMB_BOX (progress);
return box->progress_active;
}
static void
gimp_thumb_box_progress_set_value (GimpProgress *progress,
gdouble percentage)
{
GimpThumbBox *box = GIMP_THUMB_BOX (progress);
if (box->progress_active)
{
GtkProgressBar *bar = GTK_PROGRESS_BAR (box->progress);
gtk_progress_bar_set_fraction (bar, percentage);
}
}
static gdouble
gimp_thumb_box_progress_get_value (GimpProgress *progress)
{
GimpThumbBox *box = GIMP_THUMB_BOX (progress);
if (box->progress_active)
{
GtkProgressBar *bar = GTK_PROGRESS_BAR (box->progress);
return gtk_progress_bar_get_fraction (bar);
}
return 0.0;
}
static void
gimp_thumb_box_progress_pulse (GimpProgress *progress)
{
GimpThumbBox *box = GIMP_THUMB_BOX (progress);
if (box->progress_active)
{
GtkProgressBar *bar = GTK_PROGRESS_BAR (box->progress);
gtk_progress_bar_pulse (bar);
}
}
static gboolean
gimp_thumb_box_progress_message (GimpProgress *progress,
Gimp *gimp,
GimpMessageSeverity severity,
const gchar *domain,
const gchar *message)
{
/* GimpThumbBox never shows any messages */
return TRUE;
}
/* public functions */
GtkWidget *
gimp_thumb_box_new (GimpContext *context)
{
GimpThumbBox *box;
GtkWidget *vbox;
GtkWidget *vbox2;
GtkWidget *ebox;
GtkWidget *hbox;
GtkWidget *button;
GtkWidget *label;
gchar *str;
gint h, v;
GtkRequisition info_requisition;
GtkRequisition thumb_progress_requisition;
GtkRequisition progress_requisition;
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
box = g_object_new (GIMP_TYPE_THUMB_BOX, NULL);
box->context = context;
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%sClick to force update even "
"if preview is up-to-date"),
gimp_get_mod_string (GDK_CONTROL_MASK),
gimp_get_mod_separator ());
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 (_("Pr_eview"));
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, 6);
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 (context->gimp, NULL);
g_signal_connect (box->imagefile, "info-changed",
G_CALLBACK (gimp_thumb_box_imagefile_info_changed),
box);
g_signal_connect (box->imagefile->thumbnail, "notify::thumb-state",
G_CALLBACK (gimp_thumb_box_thumb_state_notify),
box);
gimp_view_renderer_get_frame_size (&h, &v);
box->preview = gimp_view_new (context,
GIMP_VIEWABLE (box->imagefile),
/* add padding for the shadow frame */
context->gimp->config->thumbnail_size +
MAX (h, v),
0, FALSE);
gtk_box_pack_start (GTK_BOX (hbox), box->preview, TRUE, FALSE, 2);
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_ellipsize (GTK_LABEL (box->filename), PANGO_ELLIPSIZE_MIDDLE);
gtk_label_set_justify (GTK_LABEL (box->filename), GTK_JUSTIFY_CENTER);
gimp_label_set_attributes (GTK_LABEL (box->filename),
PANGO_ATTR_STYLE, PANGO_STYLE_OBLIQUE,
-1);
gtk_box_pack_start (GTK_BOX (vbox2), box->filename, FALSE, FALSE, 0);
gtk_widget_show (box->filename);
box->info = gtk_label_new (" \n \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);
gimp_label_set_attributes (GTK_LABEL (box->info),
PANGO_ATTR_SCALE, PANGO_SCALE_SMALL,
-1);
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), "Fog");
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); */
box->thumb_progress = gtk_progress_bar_new ();
gtk_progress_bar_set_text (GTK_PROGRESS_BAR (box->thumb_progress), "Fog");
gtk_box_pack_end (GTK_BOX (vbox2), box->thumb_progress, FALSE, FALSE, 0);
gtk_widget_set_no_show_all (box->thumb_progress, TRUE);
/* don't gtk_widget_show (box->thumb_progress); */
/* eek */
gtk_widget_size_request (box->info, &info_requisition);
gtk_widget_size_request (box->thumb_progress, &thumb_progress_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);
gtk_widget_set_size_request (box->thumb_progress, -1,
thumb_progress_requisition.height);
gtk_progress_bar_set_text (GTK_PROGRESS_BAR (box->thumb_progress), "");
gtk_widget_set_size_request (box->progress, -1,
progress_requisition.height);
gtk_progress_bar_set_text (GTK_PROGRESS_BAR (box->progress), "");
return GTK_WIDGET (box);
}
void
gimp_thumb_box_set_uri (GimpThumbBox *box,
const gchar *uri)
{
g_return_if_fail (GIMP_IS_THUMB_BOX (box));
if (box->idle_id)
{
g_source_remove (box->idle_id);
box->idle_id = 0;
}
gimp_object_set_name (GIMP_OBJECT (box->imagefile), uri);
if (uri)
{
gchar *basename = file_utils_uri_display_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_thumb_state_notify (GimpThumbnail *thumb,
GParamSpec *pspec,
GimpThumbBox *box)
{
if (box->idle_id)
return;
if (thumb->image_state == GIMP_THUMB_STATE_REMOTE)
return;
switch (thumb->thumb_state)
{
case GIMP_THUMB_STATE_NOT_FOUND:
case GIMP_THUMB_STATE_OLD:
box->idle_id =
g_idle_add_full (G_PRIORITY_LOW,
(GSourceFunc) gimp_thumb_box_auto_thumbnail,
box, NULL);
break;
default:
break;
}
}
static void
gimp_thumb_box_create_thumbnails (GimpThumbBox *box,
gboolean force)
{
Gimp *gimp = box->imagefile->gimp;
GimpFileDialog *dialog = NULL;
GtkWidget *toplevel;
GSList *list;
gint n_uris;
gint i;
if (gimp->config->thumbnail_size == GIMP_THUMBNAIL_SIZE_NONE ||
! gimp->config->layer_previews)
return;
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (box));
if (GIMP_IS_FILE_DIALOG (toplevel))
dialog = GIMP_FILE_DIALOG (toplevel);
gimp_set_busy (gimp);
if (dialog)
gimp_file_dialog_set_sensitive (dialog, FALSE);
else
gtk_widget_set_sensitive (toplevel, FALSE);
if (box->uris)
{
gtk_widget_hide (box->info);
gtk_widget_show (box->progress);
}
n_uris = g_slist_length (box->uris);
if (n_uris > 1)
{
gchar *str;
gtk_progress_bar_set_text (GTK_PROGRESS_BAR (box->thumb_progress), NULL);
gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (box->thumb_progress),
0.0);
gtk_widget_show (box->thumb_progress);
for (list = box->uris->next, i = 1;
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->thumb_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,
force);
if (dialog && dialog->canceled)
goto canceled;
gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (box->thumb_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->thumb_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,
force);
if (n_uris > 1)
{
gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (box->thumb_progress),
1.0);
while (g_main_context_pending (NULL))
g_main_context_iteration (NULL, FALSE);
}
}
canceled:
if (n_uris > 1)
gtk_widget_hide (box->thumb_progress);
if (box->uris)
{
gtk_widget_hide (box->progress);
gtk_widget_show (box->info);
}
if (dialog)
gimp_file_dialog_set_sensitive (dialog, TRUE);
else
gtk_widget_set_sensitive (toplevel, TRUE);
gimp_unset_busy (gimp);
}
static void
gimp_thumb_box_create_thumbnail (GimpThumbBox *box,
const gchar *uri,
GimpThumbnailSize size,
gboolean force)
{
gchar *filename = file_utils_filename_from_uri (uri);
GimpThumbnail *thumb;
gchar *basename;
if (filename)
{
gboolean regular = g_file_test (filename, G_FILE_TEST_IS_REGULAR);
g_free (filename);
if (! regular)
return;
}
thumb = box->imagefile->thumbnail;
basename = file_utils_uri_display_basename (uri);
gtk_label_set_text (GTK_LABEL (box->filename), basename);
g_free (basename);
gimp_object_set_name (GIMP_OBJECT (box->imagefile), uri);
if (force ||
(gimp_thumbnail_peek_thumb (thumb, size) < GIMP_THUMB_STATE_FAILED &&
! gimp_thumbnail_has_failed (thumb)))
{
gimp_imagefile_create_thumbnail (box->imagefile, box->context,
GIMP_PROGRESS (box),
size,
!force);
}
}
static gboolean
gimp_thumb_box_auto_thumbnail (GimpThumbBox *box)
{
Gimp *gimp = box->imagefile->gimp;
GimpThumbnail *thumb = box->imagefile->thumbnail;
const gchar *uri = gimp_object_get_name (GIMP_OBJECT (box->imagefile));
box->idle_id = 0;
if (thumb->image_state == GIMP_THUMB_STATE_NOT_FOUND)
return FALSE;
switch (thumb->thumb_state)
{
case GIMP_THUMB_STATE_NOT_FOUND:
case GIMP_THUMB_STATE_OLD:
if (thumb->image_filesize < gimp->config->thumbnail_filesize_limit &&
! gimp_thumbnail_has_failed (thumb) &&
file_utils_find_proc_by_extension (gimp->plug_in_manager->load_procs,
uri))
{
if (thumb->image_filesize > 0)
{
gchar *size;
gchar *text;
size = gimp_memsize_to_string (thumb->image_filesize);
text = g_strdup_printf ("%s\n%s",
size, _("Creating preview..."));
gtk_label_set_text (GTK_LABEL (box->info), text);
g_free (text);
g_free (size);
}
else
{
gtk_label_set_text (GTK_LABEL (box->info),
_("Creating preview..."));
}
gimp_imagefile_create_thumbnail_weak (box->imagefile, box->context,
GIMP_PROGRESS (box),
gimp->config->thumbnail_size,
TRUE);
}
break;
default:
break;
}
return FALSE;
}
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