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gimp/app/gui/file-open-dialog.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995, 1996, 1997 Spencer Kimball and Peter Mattis
* Copyright (C) 1997 Josh MacDonald
*
* 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"
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <gtk/gtk.h>
#include "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "gui-types.h"
#include "base/temp-buf.h"
#include "core/gimp.h"
#include "core/gimpcontext.h"
#include "core/gimpcoreconfig.h"
#include "core/gimpimage.h"
#include "core/gimpimage-new.h"
#include "core/gimpimagefile.h"
#include "plug-in/plug-in-proc.h"
#include "file/file-open.h"
#include "file/file-utils.h"
#include "widgets/gimpitemfactory.h"
#include "widgets/gimppreview.h"
#include "file-dialog-utils.h"
#include "file-open-dialog.h"
#include "undo.h"
#include "libgimp/gimpintl.h"
/* local function prototypes */
static GtkWidget * file_open_dialog_create (Gimp *gimp);
static void file_open_type_callback (GtkWidget *widget,
gpointer data);
static void file_open_selchanged_callback (GtkTreeSelection *sel,
GtkWidget *open_dialog);
static void file_open_imagefile_info_changed (GimpImagefile *imagefile,
GtkLabel *label);
static gboolean file_open_thumbnail_button_press (GtkWidget *widget,
GdkEventButton *bevent,
GtkWidget *open_dialog);
static void file_open_thumbnail_clicked (GtkWidget *widget,
GtkWidget *open_dialog);
static void file_open_thumbnail_ext_clicked (GtkWidget *widget,
guint state,
GtkWidget *open_dialog);
static void file_open_ok_callback (GtkWidget *widget,
GtkWidget *open_dialog);
static void file_open_dialog_open_image (GtkWidget *open_dialog,
Gimp *gimp,
const gchar *uri,
const gchar *entered_filename,
PlugInProcDef *load_proc);
static GtkWidget *fileload = NULL;
static GtkWidget *open_options_frame = NULL;
static GtkWidget *open_options_title = NULL;
static GimpImagefile *open_options_imagefile = NULL;
static GtkWidget *open_options_preview = NULL;
static GtkWidget *open_options_label = NULL;
static GtkProgressBar *open_options_progress = NULL;
static PlugInProcDef *load_file_proc = NULL;
/* public functions */
void
file_open_dialog_menu_init (Gimp *gimp,
GimpItemFactory *item_factory)
{
GimpItemFactoryEntry entry;
PlugInProcDef *file_proc;
GSList *list;
g_return_if_fail (GIMP_IS_GIMP (gimp));
g_return_if_fail (GIMP_IS_ITEM_FACTORY (item_factory));
gimp->load_procs = g_slist_reverse (gimp->load_procs);
for (list = gimp->load_procs; list; list = g_slist_next (list))
{
gchar *basename;
gchar *lowercase_basename;
gchar *help_page;
file_proc = (PlugInProcDef *) list->data;
basename = g_path_get_basename (file_proc->prog);
lowercase_basename = g_ascii_strdown (basename, -1);
g_free (basename);
/* NOT g_build_filename() because this is a relative URI */
help_page = g_strconcat ("filters/",
lowercase_basename,
".html",
NULL);
g_free (lowercase_basename);
entry.entry.path = strstr (file_proc->menu_path, "/");
entry.entry.accelerator = NULL;
entry.entry.callback = file_open_type_callback;
entry.entry.callback_action = 0;
entry.entry.item_type = NULL;
entry.quark_string = NULL;
entry.help_page = help_page;
entry.description = NULL;
gimp_item_factory_create_item (item_factory,
&entry,
NULL,
file_proc, 2,
TRUE, FALSE);
g_free (help_page);
}
}
void
file_open_dialog_menu_reset (void)
{
load_file_proc = NULL;
}
void
file_open_dialog_show (Gimp *gimp)
{
g_return_if_fail (GIMP_IS_GIMP (gimp));
if (! fileload)
fileload = file_open_dialog_create (gimp);
gtk_widget_set_sensitive (GTK_WIDGET (fileload), TRUE);
if (GTK_WIDGET_VISIBLE (fileload))
return;
gtk_file_selection_set_filename (GTK_FILE_SELECTION (fileload),
"." G_DIR_SEPARATOR_S);
gtk_window_set_title (GTK_WINDOW (fileload), _("Open Image"));
file_dialog_show (fileload);
}
/* private functions */
static GtkWidget *
file_open_dialog_create (Gimp *gimp)
{
GtkWidget *open_dialog;
GtkFileSelection *fs;
GtkTreeSelection *tree_sel;
open_dialog = file_dialog_new (gimp,
gimp_item_factory_from_path ("<Load>"),
_("Open Image"), "open_image",
"open/dialogs/file_open.html",
G_CALLBACK (file_open_ok_callback));
fs = GTK_FILE_SELECTION (open_dialog);
gtk_file_selection_set_select_multiple (fs, TRUE);
tree_sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (fs->file_list));
/* The preview frame */
if (gimp->config->thumbnail_size > 0)
{
GtkWidget *vbox;
GtkWidget *vbox2;
GtkWidget *ebox;
GtkWidget *hbox;
GtkWidget *button;
GtkWidget *label;
GtkWidget *progress;
GtkStyle *style;
/* Catch file-list clicks so we can update the preview thumbnail */
g_signal_connect (G_OBJECT (tree_sel), "changed",
G_CALLBACK (file_open_selchanged_callback),
open_dialog);
open_options_frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (open_options_frame),
GTK_SHADOW_IN);
ebox = gtk_event_box_new ();
gtk_widget_ensure_style (ebox);
style = gtk_widget_get_style (ebox);
gtk_widget_modify_bg (ebox, GTK_STATE_NORMAL,
&style->base[GTK_STATE_NORMAL]);
gtk_widget_modify_bg (ebox, GTK_STATE_INSENSITIVE,
&style->base[GTK_STATE_NORMAL]);
gtk_container_add (GTK_CONTAINER (open_options_frame), ebox);
gtk_widget_show (ebox);
g_signal_connect (G_OBJECT (ebox), "button_press_event",
G_CALLBACK (file_open_thumbnail_button_press),
open_dialog);
gimp_help_set_help_data (ebox, _("Click to update preview\n"
"<Ctrl> Click to force update even "
"if preview is up-to-date"), NULL);
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 (G_OBJECT (button), "button_press_event",
G_CALLBACK (gtk_true),
NULL);
g_signal_connect (G_OBJECT (button), "button_release_event",
G_CALLBACK (gtk_true),
NULL);
g_signal_connect (G_OBJECT (button), "enter_notify_event",
G_CALLBACK (gtk_true),
NULL);
g_signal_connect (G_OBJECT (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);
open_options_imagefile = gimp_imagefile_new (NULL);
open_options_preview =
gimp_preview_new (GIMP_VIEWABLE (open_options_imagefile),
gimp->config->thumbnail_size, 0, FALSE);
gtk_widget_ensure_style (open_options_preview);
style = gtk_widget_get_style (open_options_preview);
gtk_widget_modify_bg (open_options_preview, GTK_STATE_NORMAL,
&style->base[GTK_STATE_NORMAL]);
gtk_widget_modify_bg (open_options_preview, GTK_STATE_INSENSITIVE,
&style->base[GTK_STATE_NORMAL]);
gtk_box_pack_start (GTK_BOX (hbox),
open_options_preview, TRUE, FALSE, 10);
gtk_widget_show (open_options_preview);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), open_options_preview);
g_signal_connect (G_OBJECT (open_options_preview), "clicked",
G_CALLBACK (file_open_thumbnail_clicked),
open_dialog);
g_signal_connect (G_OBJECT (open_options_preview), "extended_clicked",
G_CALLBACK (file_open_thumbnail_ext_clicked),
open_dialog);
open_options_title = gtk_label_new (_("No Selection"));
gtk_box_pack_start (GTK_BOX (vbox2),
open_options_title, FALSE, FALSE, 0);
gtk_widget_show (open_options_title);
label = gtk_label_new (" \n \n ");
gtk_misc_set_alignment (GTK_MISC (label), 0.5, 0.0);
gtk_label_set_justify (GTK_LABEL (label), GTK_JUSTIFY_CENTER);
gtk_box_pack_start (GTK_BOX (vbox2), label, FALSE, FALSE, 0);
gtk_widget_show (label);
/* eek */
{
GtkRequisition requisition;
gtk_widget_size_request (label, &requisition);
gtk_widget_set_size_request (label, -1, requisition.height);
}
g_signal_connect (G_OBJECT (open_options_imagefile), "info_changed",
G_CALLBACK (file_open_imagefile_info_changed),
label);
open_options_label = label;
/* pack the containing open_options hbox into the open-dialog */
for (hbox = fs->dir_list; ! GTK_IS_HBOX (hbox); hbox = hbox->parent);
gtk_box_pack_end (GTK_BOX (hbox), open_options_frame, FALSE, FALSE, 0);
gtk_widget_show (open_options_frame);
gtk_widget_set_sensitive (GTK_WIDGET (open_options_frame), FALSE);
/* The progress bar */
progress = gtk_progress_bar_new ();
gtk_box_pack_end (GTK_BOX (vbox2), progress, FALSE, FALSE, 0);
/* don't gtk_widget_show (progress); */
open_options_progress = GTK_PROGRESS_BAR (progress);
/* eek */
{
GtkRequisition requisition;
gtk_progress_bar_set_text (open_options_progress, "foo");
gtk_widget_size_request (progress, &requisition);
gtk_widget_set_size_request (open_options_title, requisition.width, -1);
}
}
return open_dialog;
}
static void
file_open_type_callback (GtkWidget *widget,
gpointer data)
{
PlugInProcDef *proc = (PlugInProcDef *) data;
file_dialog_update_name (proc, GTK_FILE_SELECTION (fileload));
load_file_proc = proc;
}
static void
file_open_imagefile_info_changed (GimpImagefile *imagefile,
GtkLabel *label)
{
gtk_label_set_text (label, gimp_imagefile_get_description (imagefile));
}
static void
selchanged_foreach (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
gboolean *selected = data;
*selected = TRUE;
}
static void
file_open_selchanged_callback (GtkTreeSelection *sel,
GtkWidget *open_dialog)
{
GtkFileSelection *fs;
Gimp *gimp;
const gchar *fullfname;
gboolean selected = FALSE;
gtk_tree_selection_selected_foreach (sel,
selchanged_foreach,
&selected);
fs = GTK_FILE_SELECTION (open_dialog);
gimp = GIMP (g_object_get_data (G_OBJECT (open_dialog), "gimp"));
if (selected)
{
gchar *uri;
gchar *basename;
fullfname = gtk_file_selection_get_filename (fs);
uri = file_utils_filename_to_uri (gimp->load_procs, fullfname, NULL);
basename = file_utils_uri_to_utf8_basename (uri);
gimp_object_set_name (GIMP_OBJECT (open_options_imagefile), uri);
gtk_label_set_text (GTK_LABEL (open_options_title), basename);
g_free (uri);
g_free (basename);
}
else
{
gimp_object_set_name (GIMP_OBJECT (open_options_imagefile), NULL);
gtk_label_set_text (GTK_LABEL (open_options_title), _("No Selection"));
}
gtk_widget_set_sensitive (GTK_WIDGET (open_options_frame), selected);
gimp_imagefile_update (open_options_imagefile, gimp->config->thumbnail_size);
}
static void
file_open_create_thumbnail (const gchar *filename,
GimpThumbnailSize size,
gboolean always_create)
{
if (g_file_test (filename, G_FILE_TEST_IS_REGULAR))
{
GimpImagefile *imagefile;
gchar *basename;
gchar *uri;
uri = g_filename_to_uri (filename, NULL, NULL);
imagefile = gimp_imagefile_new (uri);
if (always_create)
{
gimp_imagefile_create_thumbnail (imagefile, size);
}
else
{
gimp_imagefile_update (imagefile, size);
gimp_viewable_get_preview (GIMP_VIEWABLE (imagefile), size, size);
if (imagefile->state < GIMP_IMAGEFILE_STATE_THUMBNAIL_FAILED)
gimp_imagefile_create_thumbnail (imagefile, size);
}
g_object_unref (G_OBJECT (imagefile));
basename = file_utils_uri_to_utf8_basename (uri);
gtk_label_set_text (GTK_LABEL (open_options_title), basename);
g_free (basename);
gimp_object_set_name (GIMP_OBJECT (open_options_imagefile), uri);
gimp_imagefile_update (open_options_imagefile, size);
g_free (uri);
}
}
static void
file_open_create_thumbnails (GtkWidget *open_dialog,
gboolean always_create)
{
GtkFileSelection *fs;
Gimp *gimp;
fs = GTK_FILE_SELECTION (open_dialog);
gimp = GIMP (g_object_get_data (G_OBJECT (fs), "gimp"));
if (gimp->config->thumbnail_size != GIMP_THUMBNAIL_SIZE_NONE)
{
gchar **selections;
gint n_selections;
gint i;
gimp_set_busy (gimp);
gtk_widget_set_sensitive (open_dialog, FALSE);
selections = gtk_file_selection_get_selections (fs);
n_selections = 0;
for (i = 0; selections[i] != NULL; i++)
n_selections++;
if (n_selections > 1)
{
gtk_progress_bar_set_text (open_options_progress, NULL);
gtk_progress_bar_set_fraction (open_options_progress, 0.0);
gtk_widget_hide (open_options_label);
gtk_widget_show (GTK_WIDGET (open_options_progress));
}
for (i = 1; selections[i] != NULL; i++)
{
if (n_selections > 1)
{
gchar *str;
str = g_strdup_printf (_("Thumbnail %d of %d"),
i, n_selections);
gtk_progress_bar_set_text (open_options_progress, str);
g_free (str);
while (g_main_context_pending (NULL))
g_main_context_iteration (NULL, FALSE);
}
file_open_create_thumbnail (selections[i],
gimp->config->thumbnail_size,
always_create);
if (n_selections > 1)
{
gtk_progress_bar_set_fraction (open_options_progress,
(gdouble) i /
(gdouble) n_selections);
while (g_main_context_pending (NULL))
g_main_context_iteration (NULL, FALSE);
}
}
if (selections[0])
{
if (n_selections > 1)
{
gchar *str;
str = g_strdup_printf (_("Thumbnail %d of %d"),
n_selections, n_selections);
gtk_progress_bar_set_text (open_options_progress, str);
g_free (str);
while (g_main_context_pending (NULL))
g_main_context_iteration (NULL, FALSE);
}
file_open_create_thumbnail (selections[0],
gimp->config->thumbnail_size,
always_create);
if (n_selections > 1)
{
gtk_progress_bar_set_fraction (open_options_progress, 1.0);
while (g_main_context_pending (NULL))
g_main_context_iteration (NULL, FALSE);
}
}
if (n_selections > 1)
{
gtk_widget_hide (GTK_WIDGET (open_options_progress));
gtk_widget_show (open_options_label);
}
g_strfreev (selections);
gtk_widget_set_sensitive (open_dialog, TRUE);
gimp_unset_busy (gimp);
}
}
static gboolean
file_open_thumbnail_button_press (GtkWidget *widget,
GdkEventButton *bevent,
GtkWidget *open_dialog)
{
gboolean always_create;
always_create = (bevent->state & GDK_CONTROL_MASK) ? TRUE : FALSE;
file_open_create_thumbnails (open_dialog, always_create);
return TRUE;
}
static void
file_open_thumbnail_clicked (GtkWidget *widget,
GtkWidget *open_dialog)
{
file_open_create_thumbnails (open_dialog, FALSE);
}
static void
file_open_thumbnail_ext_clicked (GtkWidget *widget,
guint state,
GtkWidget *open_dialog)
{
gboolean always_create;
always_create = (state & GDK_CONTROL_MASK) ? TRUE : FALSE;
file_open_create_thumbnails (open_dialog, always_create);
}
static void
file_open_ok_callback (GtkWidget *widget,
GtkWidget *open_dialog)
{
GtkFileSelection *fs;
Gimp *gimp;
gchar **selections;
gchar *uri;
const gchar *entered_filename;
gint i;
fs = GTK_FILE_SELECTION (open_dialog);
gimp = GIMP (g_object_get_data (G_OBJECT (open_dialog), "gimp"));
selections = gtk_file_selection_get_selections (fs);
if (selections == NULL)
return;
entered_filename = gtk_entry_get_text (GTK_ENTRY (fs->selection_entry));
if (g_file_test (selections[0], G_FILE_TEST_IS_DIR))
{
if (selections[0][strlen (selections[0]) - 1] != G_DIR_SEPARATOR)
{
gchar *s = g_strconcat (selections[0], G_DIR_SEPARATOR_S, NULL);
gtk_file_selection_set_filename (fs, s);
g_free (s);
}
else
{
gtk_file_selection_set_filename (fs, selections[0]);
}
g_strfreev (selections);
return;
}
if (strstr (entered_filename, "://"))
{
/* try with the entered filename if it looks like an URI */
uri = g_strdup (entered_filename);
}
else
{
uri = g_filename_to_uri (selections[0], NULL, NULL);
}
gtk_widget_set_sensitive (open_dialog, FALSE);
file_open_dialog_open_image (open_dialog,
gimp,
uri,
entered_filename,
load_file_proc);
g_free (uri);
/*
* Now deal with multiple selections from the filesel list
*/
for (i = 1; selections[i] != NULL; i++)
{
if (g_file_test (selections[i], G_FILE_TEST_IS_REGULAR))
{
uri = g_filename_to_uri (selections[i], NULL, NULL);
file_open_dialog_open_image (open_dialog,
gimp,
uri,
uri,
load_file_proc);
g_free (uri);
}
}
g_strfreev (selections);
gtk_widget_set_sensitive (open_dialog, TRUE);
}
static void
file_open_dialog_open_image (GtkWidget *open_dialog,
Gimp *gimp,
const gchar *uri,
const gchar *entered_filename,
PlugInProcDef *load_proc)
{
GimpPDBStatusType status;
file_open_with_proc_and_display (gimp,
uri,
entered_filename,
load_proc,
&status,
NULL);
if (status == GIMP_PDB_SUCCESS)
file_dialog_hide (open_dialog);
}
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