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gimp/libgimpwidgets/gimpfileentry.c

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/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimpfileentry.c
* Copyright (C) 1999-2004 Michael Natterer <mitch@gimp.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; 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 "gimpwidgetstypes.h"
#include "gimpfileentry.h"
#include "gimphelpui.h"
#include "libgimp/libgimp-intl.h"
enum
{
FILENAME_CHANGED,
LAST_SIGNAL
};
static void gimp_file_entry_destroy (GtkObject *object);
static void gimp_file_entry_entry_activate (GtkWidget *widget,
GimpFileEntry *entry);
static gint gimp_file_entry_entry_focus_out (GtkWidget *widget,
GdkEvent *event,
GimpFileEntry *entry);
static void gimp_file_entry_browse_clicked (GtkWidget *widget,
GimpFileEntry *entry);
static void gimp_file_entry_check_filename (GimpFileEntry *entry);
G_DEFINE_TYPE (GimpFileEntry, gimp_file_entry, GTK_TYPE_HBOX)
#define parent_class gimp_file_entry_parent_class
static guint gimp_file_entry_signals[LAST_SIGNAL] = { 0 };
static void
gimp_file_entry_class_init (GimpFileEntryClass *klass)
{
GtkObjectClass *object_class = GTK_OBJECT_CLASS (klass);
/**
* GimpFileEntry::filename-changed:
*
* This signal is emitted whenever the user changes the filename.
**/
gimp_file_entry_signals[FILENAME_CHANGED] =
g_signal_new ("filename-changed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GimpFileEntryClass, filename_changed),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
object_class->destroy = gimp_file_entry_destroy;
klass->filename_changed = NULL;
}
static void
gimp_file_entry_init (GimpFileEntry *entry)
{
GtkWidget *image;
entry->title = NULL;
entry->file_dialog = NULL;
entry->check_valid = FALSE;
entry->file_exists = NULL;
gtk_box_set_spacing (GTK_BOX (entry), 4);
gtk_box_set_homogeneous (GTK_BOX (entry), FALSE);
entry->browse_button = gtk_button_new ();
gtk_box_pack_end (GTK_BOX (entry), entry->browse_button, FALSE, FALSE, 0);
gtk_widget_show (entry->browse_button);
image = gtk_image_new_from_stock (GTK_STOCK_OPEN, GTK_ICON_SIZE_BUTTON);
gtk_container_add (GTK_CONTAINER (entry->browse_button), image);
gtk_widget_show (image);
g_signal_connect (entry->browse_button, "clicked",
G_CALLBACK (gimp_file_entry_browse_clicked),
entry);
entry->entry = gtk_entry_new ();
gtk_box_pack_end (GTK_BOX (entry), entry->entry, TRUE, TRUE, 0);
gtk_widget_show (entry->entry);
g_signal_connect (entry->entry, "activate",
G_CALLBACK (gimp_file_entry_entry_activate),
entry);
g_signal_connect (entry->entry, "focus-out-event",
G_CALLBACK (gimp_file_entry_entry_focus_out),
entry);
}
static void
gimp_file_entry_destroy (GtkObject *object)
{
GimpFileEntry *entry = GIMP_FILE_ENTRY (object);
if (entry->file_dialog)
{
gtk_widget_destroy (entry->file_dialog);
entry->file_dialog = NULL;
}
if (entry->title)
{
g_free (entry->title);
entry->title = NULL;
}
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
/**
* gimp_file_entry_new:
* @title: The title of the #GtkFileEntry dialog.
* @filename: The initial filename.
* @dir_only: %TRUE if the file entry should accept directories only.
* @check_valid: %TRUE if the widget should check if the entered file
* really exists.
*
* Creates a new #GimpFileEntry widget.
*
* Returns: A pointer to the new #GimpFileEntry widget.
**/
GtkWidget *
gimp_file_entry_new (const gchar *title,
const gchar *filename,
gboolean dir_only,
gboolean check_valid)
{
GimpFileEntry *entry;
entry = g_object_new (GIMP_TYPE_FILE_ENTRY, NULL);
entry->title = g_strdup (title);
entry->dir_only = dir_only;
entry->check_valid = check_valid;
gimp_help_set_help_data (entry->browse_button,
dir_only ?
_("Open a file selector to browse your folders") :
_("Open a file selector to browse your files"),
NULL);
if (check_valid)
{
entry->file_exists = gtk_image_new_from_stock (GTK_STOCK_NO,
GTK_ICON_SIZE_BUTTON);
gtk_box_pack_start (GTK_BOX (entry), entry->file_exists, FALSE, FALSE, 0);
gtk_widget_show (entry->file_exists);
}
gimp_file_entry_set_filename (entry, filename);
return GTK_WIDGET (entry);
}
/**
* gimp_file_entry_get_filename:
* @entry: The file entry you want to know the filename from.
*
* Note that you have to g_free() the returned string.
*
* Returns: The file or directory the user has entered.
**/
gchar *
gimp_file_entry_get_filename (GimpFileEntry *entry)
{
gchar *utf8;
gchar *filename;
g_return_val_if_fail (GIMP_IS_FILE_ENTRY (entry), NULL);
utf8 = gtk_editable_get_chars (GTK_EDITABLE (entry->entry), 0, -1);
filename = g_filename_from_utf8 (utf8, -1, NULL, NULL, NULL);
g_free (utf8);
return filename;
}
/**
* gimp_file_entry_set_filename:
* @entry: The file entry you want to set the filename for.
* @filename: The new filename.
*
* If you specified @check_valid as %TRUE in gimp_file_entry_new()
* the #GimpFileEntry will immediately check the validity of the file
* name.
**/
void
gimp_file_entry_set_filename (GimpFileEntry *entry,
const gchar *filename)
{
gchar *utf8;
g_return_if_fail (GIMP_IS_FILE_ENTRY (entry));
if (filename)
utf8 = g_filename_to_utf8 (filename, -1, NULL, NULL, NULL);
else
utf8 = g_strdup ("");
gtk_entry_set_text (GTK_ENTRY (entry->entry), utf8);
g_free (utf8);
/* update everything
*/
gimp_file_entry_entry_activate (entry->entry, entry);
}
static void
gimp_file_entry_entry_activate (GtkWidget *widget,
GimpFileEntry *entry)
{
gchar *utf8;
gchar *filename;
gint len;
/* filenames still need more sanity checking
* (erase double G_DIR_SEPARATORS, ...)
*/
utf8 = gtk_editable_get_chars (GTK_EDITABLE (widget), 0, -1);
utf8 = g_strstrip (utf8);
while (((len = strlen (utf8)) > 1) &&
(utf8[len - 1] == G_DIR_SEPARATOR))
utf8[len - 1] = '\0';
filename = g_filename_from_utf8 (utf8, -1, NULL, NULL, NULL);
g_signal_handlers_block_by_func (entry->entry,
gimp_file_entry_entry_activate,
entry);
gtk_entry_set_text (GTK_ENTRY (entry->entry), utf8);
g_signal_handlers_unblock_by_func (entry->entry,
gimp_file_entry_entry_activate,
entry);
if (entry->file_dialog)
gtk_file_chooser_set_filename (GTK_FILE_CHOOSER (entry->file_dialog),
filename);
g_free (filename);
g_free (utf8);
gimp_file_entry_check_filename (entry);
gtk_editable_set_position (GTK_EDITABLE (entry->entry), -1);
g_signal_emit (entry, gimp_file_entry_signals[FILENAME_CHANGED], 0);
}
static gboolean
gimp_file_entry_entry_focus_out (GtkWidget *widget,
GdkEvent *event,
GimpFileEntry *entry)
{
gimp_file_entry_entry_activate (widget, entry);
return FALSE;
}
/* local callback of gimp_file_entry_browse_clicked() */
static void
gimp_file_entry_chooser_response (GtkWidget *dialog,
gint response_id,
GimpFileEntry *entry)
{
if (response_id == GTK_RESPONSE_OK)
{
gchar *filename;
filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
gimp_file_entry_set_filename (entry, filename);
g_free (filename);
}
gtk_widget_hide (dialog);
}
static void
gimp_file_entry_browse_clicked (GtkWidget *widget,
GimpFileEntry *entry)
{
GtkFileChooser *chooser;
gchar *utf8;
gchar *filename;
utf8 = gtk_editable_get_chars (GTK_EDITABLE (entry->entry), 0, -1);
filename = g_filename_from_utf8 (utf8, -1, NULL, NULL, NULL);
g_free (utf8);
if (! entry->file_dialog)
{
const gchar *title = entry->title;
if (! title)
{
if (entry->dir_only)
title = _("Select Folder");
else
title = _("Select File");
}
entry->file_dialog =
gtk_file_chooser_dialog_new (title, NULL,
entry->dir_only ?
GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER :
GTK_FILE_CHOOSER_ACTION_OPEN,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (entry->file_dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
chooser = GTK_FILE_CHOOSER (entry->file_dialog);
gtk_window_set_position (GTK_WINDOW (chooser), GTK_WIN_POS_MOUSE);
gtk_window_set_role (GTK_WINDOW (chooser),
"gimp-file-entry-file-dialog");
g_signal_connect (chooser, "response",
G_CALLBACK (gimp_file_entry_chooser_response),
entry);
g_signal_connect (chooser, "delete-event",
G_CALLBACK (gtk_true),
NULL);
g_signal_connect_swapped (entry, "unmap",
G_CALLBACK (gtk_widget_hide),
chooser);
}
else
{
chooser = GTK_FILE_CHOOSER (entry->file_dialog);
}
gtk_file_chooser_set_filename (chooser, filename);
g_free (filename);
gtk_window_set_screen (GTK_WINDOW (chooser), gtk_widget_get_screen (widget));
gtk_window_present (GTK_WINDOW (chooser));
}
static void
gimp_file_entry_check_filename (GimpFileEntry *entry)
{
gchar *utf8;
gchar *filename;
gboolean exists;
if (! entry->check_valid || ! entry->file_exists)
return;
utf8 = gtk_editable_get_chars (GTK_EDITABLE (entry->entry), 0, -1);
filename = g_filename_from_utf8 (utf8, -1, NULL, NULL, NULL);
g_free (utf8);
if (entry->dir_only)
exists = g_file_test (filename, G_FILE_TEST_IS_DIR);
else
exists = g_file_test (filename, G_FILE_TEST_IS_REGULAR);
g_free (filename);
gtk_image_set_from_stock (GTK_IMAGE (entry->file_exists),
exists ? GTK_STOCK_YES : GTK_STOCK_NO,
GTK_ICON_SIZE_BUTTON);
}
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