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gimp/libgimp/gimpfileselection.c

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/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimpfileselection.c
* Copyright (C) 1999-2000 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 <glib.h> /* Needed here by Win32 gcc compilation */
#include <sys/types.h>
#include <sys/stat.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <string.h>
#include <gtk/gtk.h>
#include "gimpfileselection.h"
#include "libgimp-intl.h"
#include "pixmaps/yes.xpm"
#include "pixmaps/no.xpm"
#ifdef G_OS_WIN32
# ifndef S_ISDIR
# define S_ISDIR(m) ((m) & _S_IFDIR)
# endif
# ifndef S_ISREG
# define S_ISREG(m) ((m) & _S_IFREG)
# endif
#endif
/* callbacks */
static void gimp_file_selection_realize (GtkWidget *widget);
static void gimp_file_selection_entry_callback (GtkWidget *widget,
gpointer data);
static gint gimp_file_selection_entry_focus_out_callback (GtkWidget *widget,
GdkEvent *event,
gpointer data);
static void gimp_file_selection_browse_callback (GtkWidget *widget,
gpointer data);
/* private functions */
static void gimp_file_selection_check_filename (GimpFileSelection *gfs);
enum
{
FILENAME_CHANGED,
LAST_SIGNAL
};
static guint gimp_file_selection_signals[LAST_SIGNAL] = { 0 };
static GtkHBoxClass *parent_class = NULL;
static void
gimp_file_selection_destroy (GtkObject *object)
{
GimpFileSelection *gfs;
g_return_if_fail (object != NULL);
g_return_if_fail (GIMP_IS_FILE_SELECTION (object));
gfs = GIMP_FILE_SELECTION (object);
if (gfs->file_selection)
gtk_widget_destroy (gfs->file_selection);
if (gfs->title)
g_free (gfs->title);
if (gfs->yes_pixmap)
gdk_pixmap_unref (gfs->yes_pixmap);
if (gfs->yes_mask)
gdk_bitmap_unref (gfs->yes_mask);
if (gfs->no_pixmap)
gdk_pixmap_unref (gfs->no_pixmap);
if (gfs->no_mask)
gdk_bitmap_unref (gfs->no_mask);
if (GTK_OBJECT_CLASS (parent_class)->destroy)
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
static void
gimp_file_selection_class_init (GimpFileSelectionClass *class)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
object_class = (GtkObjectClass *) class;
widget_class = (GtkWidgetClass *) class;
parent_class = gtk_type_class (gtk_hbox_get_type ());
gimp_file_selection_signals[FILENAME_CHANGED] =
gtk_signal_new ("filename_changed",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GimpFileSelectionClass,
filename_changed),
gtk_signal_default_marshaller, GTK_TYPE_NONE, 0);
gtk_object_class_add_signals (object_class, gimp_file_selection_signals,
LAST_SIGNAL);
class->filename_changed = NULL;
object_class->destroy = gimp_file_selection_destroy;
widget_class->realize = gimp_file_selection_realize;
}
static void
gimp_file_selection_init (GimpFileSelection *gfs)
{
gfs->title = NULL;
gfs->file_selection = NULL;
gfs->check_valid = FALSE;
gfs->file_exists = NULL;
gfs->yes_pixmap = NULL;
gfs->yes_mask = NULL;
gfs->no_pixmap = NULL;
gfs->no_mask = NULL;
gtk_box_set_spacing (GTK_BOX (gfs), 2);
gtk_box_set_homogeneous (GTK_BOX (gfs), FALSE);
gfs->browse_button = gtk_button_new_with_label (" ... ");
gtk_box_pack_end (GTK_BOX (gfs), gfs->browse_button, FALSE, FALSE, 0);
gtk_signal_connect (GTK_OBJECT(gfs->browse_button), "clicked",
GTK_SIGNAL_FUNC (gimp_file_selection_browse_callback),
gfs);
gtk_widget_show (gfs->browse_button);
gfs->entry = gtk_entry_new ();
gtk_box_pack_end (GTK_BOX (gfs), gfs->entry, TRUE, TRUE, 0);
gtk_signal_connect (GTK_OBJECT (gfs->entry), "activate",
GTK_SIGNAL_FUNC (gimp_file_selection_entry_callback),
gfs);
gtk_signal_connect (GTK_OBJECT (gfs->entry), "focus_out_event",
GTK_SIGNAL_FUNC (gimp_file_selection_entry_focus_out_callback),
gfs);
gtk_widget_show (gfs->entry);
}
GtkType
gimp_file_selection_get_type (void)
{
static GtkType gfs_type = 0;
if (!gfs_type)
{
GtkTypeInfo gfs_info =
{
"GimpFileSelection",
sizeof (GimpFileSelection),
sizeof (GimpFileSelectionClass),
(GtkClassInitFunc) gimp_file_selection_class_init,
(GtkObjectInitFunc) gimp_file_selection_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL
};
gfs_type = gtk_type_unique (gtk_hbox_get_type (), &gfs_info);
}
return gfs_type;
}
/**
* gimp_file_selection_new:
* @title: The title of the #GtkFileSelection dialog.
* @filename: The initial filename.
* @dir_only: #TRUE if the file selection should accept directories only.
* @check_valid: #TRUE if the widget should check if the entered file
* really exists.
*
* Creates a new #GimpFileSelection widget.
*
* Returns: A pointer to the new #GimpFileSelection widget.
**/
GtkWidget *
gimp_file_selection_new (const gchar *title,
const gchar *filename,
gboolean dir_only,
gboolean check_valid)
{
GimpFileSelection *gfs;
gfs = gtk_type_new (gimp_file_selection_get_type ());
gfs->title = g_strdup (title);
gfs->dir_only = dir_only;
gfs->check_valid = check_valid;
gimp_file_selection_set_filename (gfs, filename);
return GTK_WIDGET (gfs);
}
/**
* gimp_file_selection_get_filename:
* @gfs: The file selection 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_selection_get_filename (GimpFileSelection *gfs)
{
g_return_val_if_fail (gfs != NULL, g_strdup (""));
g_return_val_if_fail (GIMP_IS_FILE_SELECTION (gfs), g_strdup (""));
return gtk_editable_get_chars (GTK_EDITABLE (gfs->entry), 0, -1);
}
/**
* gimp_file_selection_set_filename:
* @gfs: The file selection you want to set the filename for.
* @filename: The new filename.
*
* If you specified @check_valid as #TRUE in gimp_file_selection_new()
* the #GimpFileSelection will immediately check the validity of the file
* name.
*
*/
void
gimp_file_selection_set_filename (GimpFileSelection *gfs,
const gchar *filename)
{
g_return_if_fail (gfs != NULL);
g_return_if_fail (GIMP_IS_FILE_SELECTION (gfs));
gtk_entry_set_text (GTK_ENTRY (gfs->entry), filename);
/* update everything
*/
gimp_file_selection_entry_callback (gfs->entry, (gpointer) gfs);
}
static void
gimp_file_selection_realize (GtkWidget *widget)
{
GimpFileSelection *gfs;
GtkStyle *style;
gfs = GIMP_FILE_SELECTION (widget);
if (! gfs->check_valid)
return;
if (GTK_WIDGET_CLASS (parent_class)->realize)
(* GTK_WIDGET_CLASS (parent_class)->realize) (widget);
style = gtk_widget_get_style (widget);
gfs->yes_pixmap = gdk_pixmap_create_from_xpm_d (widget->window,
&gfs->yes_mask,
&style->bg[GTK_STATE_NORMAL],
yes_xpm);
gfs->no_pixmap = gdk_pixmap_create_from_xpm_d (widget->window,
&gfs->no_mask,
&style->bg[GTK_STATE_NORMAL],
no_xpm);
gfs->file_exists = gtk_pixmap_new (gfs->no_pixmap, gfs->no_mask);
gtk_box_pack_start (GTK_BOX (gfs), gfs->file_exists, FALSE, FALSE, 0);
gimp_file_selection_check_filename (gfs);
gtk_widget_show (gfs->file_exists);
}
static void
gimp_file_selection_entry_callback (GtkWidget *widget,
gpointer data)
{
GimpFileSelection *gfs;
gchar *filename;
gint len;
gfs = GIMP_FILE_SELECTION (data);
/* filenames still need more sanity checking
* (erase double G_DIR_SEPARATORS, ...)
*/
filename = gtk_editable_get_chars (GTK_EDITABLE (widget), 0, -1);
filename = g_strstrip (filename);
while (((len = strlen (filename)) > 1) &&
(filename[len - 1] == G_DIR_SEPARATOR))
filename[len - 1] = '\0';
gtk_signal_handler_block_by_data (GTK_OBJECT (gfs->entry), gfs);
gtk_entry_set_text (GTK_ENTRY (gfs->entry), filename);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (gfs->entry), gfs);
if (gfs->file_selection)
gtk_file_selection_set_filename (GTK_FILE_SELECTION (gfs->file_selection),
filename);
g_free (filename);
gimp_file_selection_check_filename (gfs);
gtk_entry_set_position (GTK_ENTRY (gfs->entry), -1);
gtk_signal_emit (GTK_OBJECT (gfs),
gimp_file_selection_signals[FILENAME_CHANGED]);
}
static gboolean
gimp_file_selection_entry_focus_out_callback (GtkWidget *widget,
GdkEvent *event,
gpointer data)
{
gimp_file_selection_entry_callback (widget, data);
return TRUE;
}
/* local callbacks of gimp_file_selection_browse_callback() */
static void
gimp_file_selection_filesel_ok_callback (GtkWidget *widget,
gpointer data)
{
GimpFileSelection *gfs;
gchar *filename;
gfs = GIMP_FILE_SELECTION (data);
filename =
gtk_file_selection_get_filename (GTK_FILE_SELECTION (gfs->file_selection));
gtk_entry_set_text (GTK_ENTRY (gfs->entry), filename);
gtk_widget_hide (gfs->file_selection);
/* update everything */
gimp_file_selection_entry_callback (gfs->entry, data);
}
static void
gimp_file_selection_browse_callback (GtkWidget *widget,
gpointer data)
{
GimpFileSelection *gfs;
gchar *filename;
gfs = GIMP_FILE_SELECTION (data);
filename = gtk_editable_get_chars (GTK_EDITABLE (gfs->entry), 0, -1);
if (gfs->file_selection == NULL)
{
if (gfs->dir_only)
{
gfs->file_selection = gtk_file_selection_new (gfs->title);
/* hiding these widgets uses internal gtk+ knowledge, but it's
* easier than creating my own directory browser -- michael
*/
gtk_widget_hide
(GTK_FILE_SELECTION (gfs->file_selection)->fileop_del_file);
gtk_widget_hide
(GTK_FILE_SELECTION (gfs->file_selection)->file_list->parent);
}
else
{
gfs->file_selection = gtk_file_selection_new (_("Select File"));
}
gtk_window_set_position (GTK_WINDOW (gfs->file_selection),
GTK_WIN_POS_MOUSE);
gtk_window_set_wmclass (GTK_WINDOW (gfs->file_selection),
"file_select", "Gimp");
/* slightly compress the dialog */
gtk_container_set_border_width (GTK_CONTAINER (gfs->file_selection), 2);
gtk_container_set_border_width (GTK_CONTAINER (GTK_FILE_SELECTION (gfs->file_selection)->button_area), 2);
gtk_signal_connect
(GTK_OBJECT (GTK_FILE_SELECTION (gfs->file_selection)->ok_button),
"clicked",
GTK_SIGNAL_FUNC (gimp_file_selection_filesel_ok_callback),
gfs);
gtk_signal_connect
(GTK_OBJECT (GTK_FILE_SELECTION (gfs->file_selection)->selection_entry),
"activate",
GTK_SIGNAL_FUNC (gimp_file_selection_filesel_ok_callback),
gfs);
gtk_signal_connect_object (GTK_OBJECT (GTK_FILE_SELECTION (gfs->file_selection)->cancel_button),
"clicked",
GTK_SIGNAL_FUNC (gtk_widget_hide),
GTK_OBJECT (gfs->file_selection));
gtk_signal_connect_object (GTK_OBJECT (gfs), "unmap",
GTK_SIGNAL_FUNC (gtk_widget_hide),
GTK_OBJECT (gfs->file_selection));
gtk_signal_connect_object (GTK_OBJECT (gfs->file_selection),
"delete_event",
GTK_SIGNAL_FUNC (gtk_widget_hide),
GTK_OBJECT (gfs->file_selection));
}
gtk_file_selection_set_filename (GTK_FILE_SELECTION (gfs->file_selection),
filename);
if (! GTK_WIDGET_VISIBLE (gfs->file_selection))
gtk_widget_show (gfs->file_selection);
else
gdk_window_raise (gfs->file_selection->window);
}
static void
gimp_file_selection_check_filename (GimpFileSelection *gfs)
{
static struct stat statbuf;
gchar *filename;
if (! gfs->check_valid)
return;
if (gfs->file_exists == NULL)
return;
filename = gtk_editable_get_chars (GTK_EDITABLE (gfs->entry), 0, -1);
if ((stat (filename, &statbuf) == 0) &&
(gfs->dir_only ? S_ISDIR (statbuf.st_mode) : S_ISREG (statbuf.st_mode)))
{
gtk_pixmap_set (GTK_PIXMAP (gfs->file_exists),
gfs->yes_pixmap, gfs->yes_mask);
}
else
{
gtk_pixmap_set (GTK_PIXMAP (gfs->file_exists),
gfs->no_pixmap, gfs->no_mask);
}
g_free (filename);
}
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