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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
#ifdef __GNUC__
#warning GTK_DISABLE_DEPRECATED
#endif
#undef GTK_DISABLE_DEPRECATED
#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/gimpdocuments.h"
#include "core/gimpimage.h"
#include "plug-in/plug-in-types.h"
#include "plug-in/plug-in-proc.h"
#include "file/file-open.h"
#include "file/file-utils.h"
#include "widgets/gimpitemfactory.h"
#include "file-dialog-utils.h"
#include "file-open-dialog.h"
#include "undo.h"
#include "libgimp/gimpintl.h"
/* local function prototypes */
static void file_open_dialog_create (Gimp *gimp);
static void file_open_genbutton_callback (GtkWidget *widget,
gpointer data);
static void file_open_selchanged_callback (GtkTreeSelection *sel,
gpointer data);
static void file_open_ok_callback (GtkWidget *widget,
gpointer data);
static void file_open_type_callback (GtkWidget *widget,
gpointer data);
static GtkWidget *fileload = NULL;
static GtkWidget *open_options = NULL;
static GtkPreview *open_options_preview = NULL;
static GtkWidget *open_options_fixed = NULL;
static GtkWidget *open_options_label = NULL;
static GtkWidget *open_options_frame = NULL;
static GtkWidget *open_options_genbuttonlabel = NULL;
/* Some state for the thumbnailer */
static gchar *preview_fullname = NULL;
static PlugInProcDef *load_file_proc = NULL;
/* public functions */
void
file_open_dialog_menu_init (Gimp *gimp)
{
GimpItemFactoryEntry entry;
PlugInProcDef *file_proc;
GSList *list;
g_return_if_fail (GIMP_IS_GIMP (gimp));
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);
help_page = g_strconcat ("filters/",
lowercase_basename,
".html",
NULL);
g_free (lowercase_basename);
entry.entry.path = 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_menu_item_create (&entry, NULL, file_proc);
}
}
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)
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 void
file_open_dialog_create (Gimp *gimp)
{
GtkFileSelection *file_sel;
GtkTreeSelection *tree_sel;
fileload = gtk_file_selection_new (_("Open Image"));
g_object_set_data (G_OBJECT (fileload), "gimp", gimp);
gtk_window_set_position (GTK_WINDOW (fileload), GTK_WIN_POS_MOUSE);
gtk_window_set_wmclass (GTK_WINDOW (fileload), "load_image", "Gimp");
file_sel = GTK_FILE_SELECTION (fileload);
gtk_container_set_border_width (GTK_CONTAINER (fileload), 2);
gtk_container_set_border_width (GTK_CONTAINER (file_sel->button_area), 2);
g_signal_connect_swapped (G_OBJECT (file_sel->cancel_button), "clicked",
G_CALLBACK (file_dialog_hide),
fileload);
g_signal_connect (G_OBJECT (fileload), "delete_event",
G_CALLBACK (file_dialog_hide),
NULL);
g_signal_connect (G_OBJECT (file_sel->ok_button), "clicked",
G_CALLBACK (file_open_ok_callback),
fileload);
gtk_quit_add_destroy (1, GTK_OBJECT (fileload));
gtk_file_selection_set_select_multiple (GTK_FILE_SELECTION (fileload), TRUE);
tree_sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (GTK_FILE_SELECTION (fileload)->file_list));
/* 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),
fileload);
/* Connect the "F1" help key */
gimp_help_connect (fileload,
gimp_standard_help_func,
"open/dialogs/file_open.html");
{
GimpItemFactory *item_factory;
GtkWidget *frame;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *option_menu;
GtkWidget *open_options_genbutton;
open_options = gtk_hbox_new (TRUE, 1);
/* format-chooser frame */
frame = gtk_frame_new (_("Determine File Type"));
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
gtk_box_pack_start (GTK_BOX (open_options), frame, TRUE, TRUE, 4);
vbox = gtk_vbox_new (FALSE, 2);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 4);
gtk_container_add (GTK_CONTAINER (frame), vbox);
hbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
option_menu = gtk_option_menu_new ();
gtk_box_pack_start (GTK_BOX (hbox), option_menu, FALSE, FALSE, 0);
gtk_widget_show (option_menu);
item_factory = gimp_item_factory_from_path ("<Load>");
gtk_option_menu_set_menu (GTK_OPTION_MENU (option_menu),
GTK_ITEM_FACTORY (item_factory)->widget);
gtk_widget_show (vbox);
gtk_widget_show (frame);
/* Preview frame */
open_options_frame = frame = gtk_frame_new ("");
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
gtk_box_pack_end (GTK_BOX (open_options), frame, FALSE, TRUE, 4);
vbox = gtk_vbox_new (FALSE, 2);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 4);
gtk_container_add (GTK_CONTAINER (frame), vbox);
hbox = gtk_hbox_new (TRUE, 0);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
open_options_genbutton = gtk_button_new ();
gtk_box_pack_start (GTK_BOX (hbox), open_options_genbutton,
TRUE, FALSE, 0);
gtk_widget_show (open_options_genbutton);
g_signal_connect (G_OBJECT (open_options_genbutton), "clicked",
G_CALLBACK (file_open_genbutton_callback),
fileload);
open_options_fixed = gtk_fixed_new ();
gtk_widget_set_size_request (open_options_fixed, 80, 60);
gtk_container_add (GTK_CONTAINER (GTK_BIN (open_options_genbutton)),
open_options_fixed);
gtk_widget_show (open_options_fixed);
{
GtkWidget* abox;
GtkWidget* sbox;
GtkWidget* align;
sbox = gtk_vbox_new (TRUE, 0);
gtk_container_add (GTK_CONTAINER (open_options_fixed), sbox);
gtk_widget_show (sbox);
align = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
gtk_widget_set_size_request (align, 80, 60);
gtk_box_pack_start (GTK_BOX (sbox), align, FALSE, TRUE, 0);
gtk_widget_show (align);
abox = gtk_hbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (align), abox);
gtk_widget_show (abox);
open_options_preview =
GTK_PREVIEW (gtk_preview_new (GTK_PREVIEW_COLOR));
gtk_box_pack_start (GTK_BOX (abox), GTK_WIDGET (open_options_preview),
FALSE, TRUE, 0);
gtk_widget_show (GTK_WIDGET (open_options_preview));
open_options_genbuttonlabel = gtk_label_new (_("Generate\nPreview"));
gtk_box_pack_start (GTK_BOX (abox), open_options_genbuttonlabel,
FALSE, TRUE, 0);
gtk_widget_show (open_options_genbuttonlabel);
}
open_options_label = gtk_label_new ("");
gtk_box_pack_start (GTK_BOX (vbox), open_options_label, FALSE, FALSE, 0);
gtk_widget_show (open_options_label);
gtk_widget_show (vbox);
gtk_widget_show (frame);
/* pack the containing open_options hbox into the open-dialog */
gtk_box_pack_end (GTK_BOX (GTK_FILE_SELECTION (fileload)->main_vbox),
open_options, FALSE, FALSE, 0);
}
gtk_frame_set_label (GTK_FRAME (open_options_frame), _("Preview"));
gtk_label_set_text (GTK_LABEL (open_options_label), _("No Selection"));
gtk_widget_show (GTK_WIDGET (open_options_genbuttonlabel));
gtk_widget_hide (GTK_WIDGET (open_options_preview));
gtk_widget_set_sensitive (GTK_WIDGET (open_options_frame), FALSE);
gtk_widget_show (open_options);
}
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 guchar *
make_RGBbuf_from_tempbuf (TempBuf *tempbuf,
gint *width_rtn,
gint *height_rtn)
{
gint i, j, w, h;
guchar *tbd;
guchar *ptr;
guchar *rtn = NULL;
guchar alpha, r, g, b;
w = (*width_rtn) = tempbuf->width;
h = (*height_rtn) = tempbuf->height;
tbd = temp_buf_data (tempbuf);
switch (tempbuf->bytes)
{
case 4:
rtn = ptr = g_malloc (3 * w * h);
for (i=0; i<h; i++)
{
for (j=0; j<w; j++)
{
r = *(tbd++);
g = *(tbd++);
b = *(tbd++);
alpha = *(tbd++);
if (alpha & 128)
{
*(ptr++) = r;
*(ptr++) = g;
*(ptr++) = b;
}
else
{
r = (( (i^j) & 4 ) << 5) | 64;
*(ptr++) = r;
*(ptr++) = r;
*(ptr++) = r;
}
}
}
break;
case 2:
rtn = ptr = g_malloc (3 * w * h);
for (i=0; i<h; i++)
{
for (j=0; j<w; j++)
{
r = *(tbd++);
alpha = *(tbd++);
if (!(alpha & 128))
r = (( (i^j) & 4 ) << 5) | 64;
*(ptr++) = r;
*(ptr++) = r;
*(ptr++) = r;
}
}
break;
default:
g_warning ("%s: Unknown TempBuf width.", G_STRLOC);
}
return (rtn);
}
/* don't call with preview_fullname as parameter! will be clobbered! */
static void
set_preview (Gimp *gimp,
const gchar *fullfname,
guchar *RGB_source,
gint RGB_w,
gint RGB_h)
{
guchar *thumb_rgb;
guchar *raw_thumb;
gint tnw,tnh, i;
gchar *dirname;
gchar *basename;
gchar *tname;
gchar *imginfo = NULL;
struct stat file_stat;
struct stat thumb_stat;
gboolean thumb_may_be_outdated = FALSE;
gboolean show_generate_label = TRUE;
dirname = g_path_get_dirname (fullfname);
basename = g_path_get_basename (fullfname);
tname = g_build_filename (dirname, ".xvpics", basename, NULL);
/* If the file is newer than its thumbnail, the thumbnail may
* be out of date.
*/
if ((stat (tname, &thumb_stat) == 0) &&
(stat (fullfname, &file_stat ) == 0))
{
if ((thumb_stat.st_mtime) < (file_stat.st_mtime))
{
thumb_may_be_outdated = TRUE;
}
}
raw_thumb = readXVThumb (tname, &tnw, &tnh, &imginfo);
g_free (tname);
gtk_frame_set_label (GTK_FRAME (open_options_frame), basename);
g_free (dirname);
g_free (basename);
g_free (preview_fullname);
preview_fullname = g_strdup (fullfname);
if (RGB_source)
{
gtk_preview_size (open_options_preview, RGB_w, RGB_h);
for (i = 0; i < RGB_h; i++)
{
gtk_preview_draw_row (open_options_preview, &RGB_source[3*i*RGB_w],
0, i,
RGB_w);
}
}
else
{
if (raw_thumb)
{
thumb_rgb = g_malloc (3 * tnw * tnh);
for (i = 0; i < tnw * tnh; i++)
{
thumb_rgb[i*3 ] = ((raw_thumb[i]>>5)*255)/7;
thumb_rgb[i*3+1] = (((raw_thumb[i]>>2)&7)*255)/7;
thumb_rgb[i*3+2] = (((raw_thumb[i])&3)*255)/3;
}
gtk_preview_size (open_options_preview, tnw, tnh);
for (i = 0; i < tnh; i++)
{
gtk_preview_draw_row (open_options_preview, &thumb_rgb[3*i*tnw],
0, i,
tnw);
}
g_free (thumb_rgb);
}
}
if (raw_thumb || RGB_source) /* We can show *some* kind of preview. */
{
if (raw_thumb) /* Managed to commit thumbnail file to disk */
{
gtk_label_set_text (GTK_LABEL (open_options_label),
thumb_may_be_outdated ?
_("This thumbnail may be out of date") :
(imginfo ? imginfo : _("No Information")));
if (imginfo)
g_free (imginfo);
}
else
{
if (gimp->config->write_thumbnails)
{
gtk_label_set_text (GTK_LABEL(open_options_label),
_("Could not write thumbnail file."));
}
else
{
gtk_label_set_text (GTK_LABEL(open_options_label),
_("Thumbnail saving is disabled."));
}
}
gtk_widget_show (GTK_WIDGET (open_options_preview));
gtk_widget_queue_draw (GTK_WIDGET(open_options_preview));
show_generate_label = FALSE;
g_free (raw_thumb);
}
else
{
if (imginfo)
g_free (imginfo);
gtk_widget_hide (GTK_WIDGET (open_options_preview));
gtk_label_set_text (GTK_LABEL (open_options_label),
_("No preview available"));
}
if (show_generate_label)
{
gtk_widget_hide (GTK_WIDGET (open_options_preview));
gtk_widget_show (GTK_WIDGET (open_options_genbuttonlabel));
}
else
{
gtk_widget_hide (GTK_WIDGET (open_options_genbuttonlabel));
gtk_widget_show (GTK_WIDGET (open_options_preview));
}
}
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,
gpointer data)
{
GtkFileSelection *fileload;
Gimp *gimp;
const gchar *fullfname;
gboolean selected = FALSE;
gtk_tree_selection_selected_foreach (sel,
selchanged_foreach,
&selected);
if (selected)
{
fileload = GTK_FILE_SELECTION (data);
gimp = GIMP (g_object_get_data (G_OBJECT (fileload), "gimp"));
fullfname = gtk_file_selection_get_filename (fileload);
gtk_widget_set_sensitive (GTK_WIDGET (open_options_frame), TRUE);
set_preview (gimp, fullfname, NULL, 0, 0);
}
}
static void
file_open_genbutton_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage_to_be_thumbed;
guchar *RGBbuf;
TempBuf *tempbuf;
gint RGBbuf_w;
gint RGBbuf_h;
Gimp *gimp;
/* added for multi-file preview generation... */
GtkFileSelection *fs;
gchar *full_filename = NULL;
gchar *raw_filename = NULL;
struct stat buf;
gint err;
gchar **selections;
gint i;
fs = GTK_FILE_SELECTION (data);
gimp = GIMP (g_object_get_data (G_OBJECT (fs), "gimp"));
if (! preview_fullname)
{
g_warning ("%s: Tried to generate thumbnail for NULL file name.", G_STRLOC);
return;
}
gimp_set_busy (gimp);
gtk_widget_set_sensitive (GTK_WIDGET (fileload), FALSE);
/* new mult-file preview make: */
selections = gtk_file_selection_get_selections (fs);
for (i = 0; selections[i] != NULL; i++)
{
full_filename = selections[i];
err = stat (full_filename, &buf);
if (! (err == 0 && (buf.st_mode & S_IFDIR)))
{
/* Is not directory. */
GimpPDBStatusType dummy;
raw_filename = g_path_get_basename (full_filename);
gimage_to_be_thumbed = file_open_image (gimp,
full_filename,
raw_filename,
NULL,
NULL,
GIMP_RUN_NONINTERACTIVE,
&dummy);
g_free (raw_filename);
if (gimage_to_be_thumbed)
{
tempbuf = make_thumb_tempbuf (gimage_to_be_thumbed);
RGBbuf = make_RGBbuf_from_tempbuf (tempbuf,
&RGBbuf_w,
&RGBbuf_h);
if (gimp->config->write_thumbnails)
{
file_save_thumbnail (gimage_to_be_thumbed,
full_filename, tempbuf);
}
set_preview (gimp, full_filename,
RGBbuf, RGBbuf_w, RGBbuf_h);
g_object_unref (G_OBJECT (gimage_to_be_thumbed));
if (RGBbuf)
g_free (RGBbuf);
}
else
{
gtk_label_set_text (GTK_LABEL (open_options_label),
_("Failed to generate preview."));
}
}
}
g_strfreev (selections);
gtk_widget_set_sensitive (GTK_WIDGET (fileload), TRUE);
gimp_unset_busy (gimp);
}
static void
file_open_ok_callback (GtkWidget *widget,
gpointer data)
{
GtkFileSelection *fs;
Gimp *gimp;
gchar *full_filename;
gchar *raw_filename;
struct stat buf;
gint err;
GimpPDBStatusType status;
gchar **selections;
gint i;
fs = GTK_FILE_SELECTION (data);
gimp = GIMP (g_object_get_data (G_OBJECT (fs), "gimp"));
selections = gtk_file_selection_get_selections (fs);
if (selections == NULL)
return;
full_filename = selections[0];
raw_filename = g_strdup (gtk_entry_get_text (GTK_ENTRY(fs->selection_entry)));
err = stat (full_filename, &buf);
if (err == 0 && (buf.st_mode & S_IFDIR))
{
if (full_filename[strlen (full_filename) - 1] != G_DIR_SEPARATOR)
{
gchar *s = g_strconcat (full_filename, G_DIR_SEPARATOR_S, NULL);
gtk_file_selection_set_filename (fs, s);
g_free (s);
}
else
{
gtk_file_selection_set_filename (fs, full_filename);
}
g_free (raw_filename);
g_strfreev (selections);
return;
}
gtk_widget_set_sensitive (GTK_WIDGET (fs), FALSE);
if (err) /* e.g. http://server/filename.jpg */
full_filename = raw_filename;
status = file_open_with_proc_and_display (gimp,
full_filename,
raw_filename,
load_file_proc);
if (status == GIMP_PDB_SUCCESS)
{
file_dialog_hide (data);
}
else if (status != GIMP_PDB_CANCEL)
{
/* Hackery required. Please add error message. --bex */
g_message (_("Opening '%s' failed."), full_filename);
}
/*
* Now deal with multiple selections from the filesel list
*/
for (i = 1; selections[i] != NULL; i++)
{
full_filename = selections[i];
g_free (raw_filename);
raw_filename = g_path_get_basename (full_filename);
err = stat (full_filename, &buf);
if (! (err == 0 && (buf.st_mode & S_IFDIR)))
{ /* Is not directory. */
status = file_open_with_proc_and_display (gimp,
full_filename,
raw_filename,
load_file_proc);
if (status == GIMP_PDB_SUCCESS)
{
file_dialog_hide (data);
}
else if (status != GIMP_PDB_CANCEL)
{
/* same as previous. --bex */
g_message (_("Opening '%s' failed."), full_filename);
}
}
}
g_free (raw_filename);
g_strfreev (selections);
gtk_widget_set_sensitive (GTK_WIDGET (fs), TRUE);
}
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