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gimp/libgimpwidgets/gimppatheditor.c

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/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimppatheditor.c
* Copyright (C) 1999 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 <string.h>
#include <gtk/gtk.h>
#include "gimppatheditor.h"
#include "libgimp/gimpfileselection.h"
#include "libgimp/gimpwidgets.h"
#include "pixmaps/new.xpm"
#include "pixmaps/delete.xpm"
#include "pixmaps/raise.xpm"
#include "pixmaps/lower.xpm"
/* forward declaration */
static void gimp_path_editor_select_callback (GtkWidget *widget,
gpointer data);
static void gimp_path_editor_deselect_callback (GtkWidget *widget,
gpointer data);
static void gimp_path_editor_new_callback (GtkWidget *widget,
gpointer data);
static void gimp_path_editor_move_callback (GtkWidget *widget,
gpointer data);
static void gimp_path_editor_filesel_callback (GtkWidget *widget,
gpointer data);
static void gimp_path_editor_delete_callback (GtkWidget *widget,
gpointer data);
enum
{
PATH_CHANGED,
LAST_SIGNAL
};
static guint gimp_path_editor_signals[LAST_SIGNAL] = { 0 };
static GtkVBoxClass *parent_class = NULL;
static void
gimp_path_editor_class_init (GimpPathEditorClass *class)
{
GtkObjectClass *object_class;
object_class = (GtkObjectClass *) class;
parent_class = gtk_type_class (gtk_vbox_get_type ());
gimp_path_editor_signals[PATH_CHANGED] =
gtk_signal_new ("path_changed",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GimpPathEditorClass,
path_changed),
gtk_signal_default_marshaller, GTK_TYPE_NONE, 0);
gtk_object_class_add_signals (object_class, gimp_path_editor_signals,
LAST_SIGNAL);
class->path_changed = NULL;
}
static void
gimp_path_editor_init (GimpPathEditor *gpe)
{
GtkWidget *button_box;
GtkWidget *button;
GtkWidget *scrolled_window;
gpe->file_selection = NULL;
gpe->selected_item = NULL;
gpe->number_of_items = 0;
gpe->upper_hbox = gtk_hbox_new (FALSE, 2);
gtk_box_pack_start (GTK_BOX (gpe), gpe->upper_hbox, FALSE, TRUE, 0);
gtk_widget_show (gpe->upper_hbox);
button_box = gtk_hbox_new (TRUE, 0);
gtk_box_pack_start (GTK_BOX (gpe->upper_hbox), button_box, FALSE, TRUE, 0);
gtk_widget_show (button_box);
gpe->new_button = button = gimp_pixmap_button_new (new_xpm, NULL);
gtk_box_pack_start (GTK_BOX (button_box), button, TRUE, TRUE, 0);
gtk_signal_connect (GTK_OBJECT (button), "clicked",
GTK_SIGNAL_FUNC (gimp_path_editor_new_callback),
gpe);
gtk_widget_show (button);
gpe->up_button = button = gimp_pixmap_button_new (raise_xpm, NULL);
gtk_widget_set_sensitive (button, FALSE);
gtk_box_pack_start (GTK_BOX (button_box), button, TRUE, TRUE, 0);
gtk_signal_connect (GTK_OBJECT (button), "clicked",
GTK_SIGNAL_FUNC (gimp_path_editor_move_callback),
gpe);
gtk_widget_show (button);
gpe->down_button = button = gimp_pixmap_button_new (lower_xpm, NULL);
gtk_widget_set_sensitive (button, FALSE);
gtk_box_pack_start (GTK_BOX (button_box), button, TRUE, TRUE, 0);
gtk_signal_connect (GTK_OBJECT (button), "clicked",
GTK_SIGNAL_FUNC (gimp_path_editor_move_callback),
gpe);
gtk_widget_show (button);
gpe->delete_button = button = gimp_pixmap_button_new (delete_xpm, NULL);
gtk_widget_set_sensitive (button, FALSE);
gtk_box_pack_start (GTK_BOX (button_box), button, TRUE, TRUE, 0);
gtk_signal_connect (GTK_OBJECT (button), "clicked",
GTK_SIGNAL_FUNC (gimp_path_editor_delete_callback),
gpe);
gtk_widget_show (button);
scrolled_window = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_ALWAYS);
gtk_box_pack_start (GTK_BOX (gpe), scrolled_window, TRUE, TRUE, 2);
gtk_widget_show (scrolled_window);
gpe->dir_list = gtk_list_new ();
gtk_list_set_selection_mode (GTK_LIST (gpe->dir_list), GTK_SELECTION_SINGLE);
gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (scrolled_window),
gpe->dir_list);
gtk_widget_show (gpe->dir_list);
}
GtkType
gimp_path_editor_get_type (void)
{
static GtkType gpe_type = 0;
if (!gpe_type)
{
GtkTypeInfo gpe_info =
{
"GimpPathEditor",
sizeof (GimpPathEditor),
sizeof (GimpPathEditorClass),
(GtkClassInitFunc) gimp_path_editor_class_init,
(GtkObjectInitFunc) gimp_path_editor_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL
};
gpe_type = gtk_type_unique (gtk_vbox_get_type (), &gpe_info);
}
return gpe_type;
}
/**
* gimp_path_editor_new:
* @filesel_title: The title of the #GtkFileSelection dialog which can be
* popped up by the attached #GimpFileSelection.
* @path: The initial search path.
*
* Creates a new #GimpPathEditor widget.
*
* The elements of the initial search path must be separated with the
* #G_SEARCHPATH_SEPARATOR character.
*
* Returns: A pointer to the new #GimpPathEditor widget.
*
*/
GtkWidget *
gimp_path_editor_new (gchar *filesel_title,
gchar *path)
{
GimpPathEditor *gpe;
GtkWidget *list_item;
GList *directory_list;
gchar *directory;
g_return_val_if_fail ((filesel_title != NULL), NULL);
g_return_val_if_fail ((path != NULL), NULL);
gpe = gtk_type_new (gimp_path_editor_get_type ());
gpe->file_selection = gimp_file_selection_new (filesel_title, "", TRUE, TRUE);
gtk_widget_set_sensitive (gpe->file_selection, FALSE);
gtk_box_pack_start (GTK_BOX (gpe->upper_hbox), gpe->file_selection,
TRUE, TRUE, 0);
gtk_signal_connect (GTK_OBJECT (gpe->file_selection), "filename_changed",
GTK_SIGNAL_FUNC (gimp_path_editor_filesel_callback),
gpe);
gtk_widget_show (gpe->file_selection);
directory_list = NULL;
directory = path = g_strdup (path);
/* split up the path */
while (strlen (directory))
{
gchar *current_dir;
gchar *next_separator;
next_separator = strchr (directory, G_SEARCHPATH_SEPARATOR);
if (next_separator != NULL)
*next_separator = '\0';
current_dir = g_strdup (directory);
list_item = gtk_list_item_new_with_label (current_dir);
gtk_object_set_data_full (GTK_OBJECT (list_item), "gimp_path_editor",
current_dir,
(GtkDestroyNotify) g_free);
directory_list = g_list_append (directory_list, list_item);
gtk_signal_connect (GTK_OBJECT (list_item), "select",
GTK_SIGNAL_FUNC (gimp_path_editor_select_callback),
gpe);
gtk_signal_connect (GTK_OBJECT (list_item), "deselect",
GTK_SIGNAL_FUNC (gimp_path_editor_deselect_callback),
gpe);
gtk_widget_show (list_item);
gpe->number_of_items++;
if (next_separator != NULL)
directory = next_separator + 1;
else
break;
}
g_free (path);
if (directory_list)
gtk_list_append_items (GTK_LIST (gpe->dir_list), directory_list);
return GTK_WIDGET (gpe);
}
/**
* gimp_path_editor_get_path:
* @gpe: The path editor you want to get the search path from.
*
* The elements of the returned search path string are separated with the
* #G_SEARCHPATH_SEPARATOR character.
*
* Note that you have to g_free() the returned string.
*
* Returns: The search path the user has selected in the path editor.
*
*/
gchar *
gimp_path_editor_get_path (GimpPathEditor *gpe)
{
GList *list;
gchar *path = NULL;
g_return_val_if_fail (gpe != NULL, g_strdup (""));
g_return_val_if_fail (GIMP_IS_PATH_EDITOR (gpe), g_strdup (""));
for (list = GTK_LIST (gpe->dir_list)->children; list; list = list->next)
{
if (path == NULL)
{
path =
g_strdup ((gchar *) gtk_object_get_data (GTK_OBJECT (list->data),
"gimp_path_editor"));
}
else
{
gchar *newpath;
newpath =
g_strconcat (path,
G_SEARCHPATH_SEPARATOR_S,
(gchar *) gtk_object_get_data (GTK_OBJECT (list->data),
"gimp_path_editor"),
NULL);
g_free (path);
path = newpath;
}
}
return path;
}
static void
gimp_path_editor_select_callback (GtkWidget *widget,
gpointer data)
{
GimpPathEditor *gpe;
gint pos;
gchar *directory;
gpe = GIMP_PATH_EDITOR (data);
directory = (gchar *) gtk_object_get_data (GTK_OBJECT (widget),
"gimp_path_editor");
gtk_signal_handler_block_by_data (GTK_OBJECT (gpe->file_selection), gpe);
gimp_file_selection_set_filename (GIMP_FILE_SELECTION (gpe->file_selection),
directory);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (gpe->file_selection), gpe);
gpe->selected_item = widget;
pos = gtk_list_child_position (GTK_LIST (gpe->dir_list), gpe->selected_item);
gtk_widget_set_sensitive (gpe->delete_button, TRUE);
gtk_widget_set_sensitive (gpe->up_button, (pos > 0));
gtk_widget_set_sensitive (gpe->down_button,
(pos < (gpe->number_of_items - 1)));
gtk_widget_set_sensitive (gpe->file_selection, TRUE);
}
/* the selected directory may never be deselected except by the 'new'
* button, so catch the "deselect" signal and reselect it
*/
static void
gimp_path_editor_deselect_callback (GtkWidget *widget,
gpointer data)
{
GimpPathEditor *gpe;
gpe = GIMP_PATH_EDITOR (data);
if (widget != gpe->selected_item)
return;
gtk_signal_handler_block_by_data (GTK_OBJECT (gpe->selected_item), gpe);
gtk_list_select_child (GTK_LIST (gpe->dir_list), gpe->selected_item);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (gpe->selected_item), gpe);
}
static void
gimp_path_editor_new_callback (GtkWidget *widget,
gpointer data)
{
GimpPathEditor *gpe;
gpe = GIMP_PATH_EDITOR (data);
if (gpe->selected_item)
{
gtk_signal_handler_block_by_data (GTK_OBJECT (gpe->selected_item), gpe);
gtk_list_unselect_child (GTK_LIST (gpe->dir_list), gpe->selected_item);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (gpe->selected_item), gpe);
}
gpe->selected_item = NULL;
gtk_widget_set_sensitive (gpe->delete_button, FALSE);
gtk_widget_set_sensitive (gpe->up_button, FALSE);
gtk_widget_set_sensitive (gpe->down_button, FALSE);
gtk_widget_set_sensitive (gpe->file_selection, TRUE);
gtk_editable_set_position
(GTK_EDITABLE (GIMP_FILE_SELECTION (gpe->file_selection)->entry), -1);
gtk_widget_grab_focus
(GTK_WIDGET (GIMP_FILE_SELECTION (gpe->file_selection)->entry));
}
static void
gimp_path_editor_move_callback (GtkWidget *widget,
gpointer data)
{
GimpPathEditor *gpe = GIMP_PATH_EDITOR (data);
GList *move_list = NULL;
gint pos;
gint distance;
if (gpe->selected_item == NULL)
return;
pos = gtk_list_child_position (GTK_LIST (gpe->dir_list), gpe->selected_item);
distance = (widget == gpe->up_button) ? - 1 : 1;
move_list = g_list_append (move_list, gpe->selected_item);
gtk_signal_handler_block_by_data (GTK_OBJECT (gpe->selected_item), gpe);
gtk_list_remove_items_no_unref (GTK_LIST (gpe->dir_list), move_list);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (gpe->selected_item), gpe);
gtk_list_insert_items (GTK_LIST (gpe->dir_list), move_list, pos + distance);
gtk_list_select_item (GTK_LIST (gpe->dir_list), pos + distance);
gtk_signal_emit (GTK_OBJECT (gpe), gimp_path_editor_signals[PATH_CHANGED]);
}
static void
gimp_path_editor_delete_callback (GtkWidget *widget,
gpointer data)
{
GimpPathEditor *gpe = GIMP_PATH_EDITOR (data);
GList *delete_list = NULL;
gint pos;
if (gpe->selected_item == NULL)
return;
pos = gtk_list_child_position (GTK_LIST (gpe->dir_list), gpe->selected_item);
delete_list = g_list_append (delete_list, gpe->selected_item);
gtk_list_remove_items (GTK_LIST (gpe->dir_list), delete_list);
gpe->number_of_items--;
if (gpe->number_of_items == 0)
{
gpe->selected_item = NULL;
gtk_signal_handler_block_by_data (GTK_OBJECT (gpe->file_selection), gpe);
gimp_file_selection_set_filename (GIMP_FILE_SELECTION (gpe->file_selection), "");
gtk_signal_handler_unblock_by_data (GTK_OBJECT (gpe->file_selection), gpe);
gtk_widget_set_sensitive (gpe->delete_button, FALSE);
gtk_widget_set_sensitive (gpe->file_selection, FALSE);
return;
}
if ((pos == gpe->number_of_items) && (pos > 0))
pos--;
gtk_list_select_item (GTK_LIST (gpe->dir_list), pos);
gtk_signal_emit (GTK_OBJECT (gpe), gimp_path_editor_signals[PATH_CHANGED]);
}
static void
gimp_path_editor_filesel_callback (GtkWidget *widget,
gpointer data)
{
GimpPathEditor *gpe = GIMP_PATH_EDITOR (data);
GList *append_list = NULL;
GtkWidget *list_item = NULL;
gchar *directory;
directory = gimp_file_selection_get_filename (GIMP_FILE_SELECTION (widget));
if (strcmp (directory, "") == 0)
return;
if (gpe->selected_item == NULL)
{
list_item = gtk_list_item_new_with_label (directory);
gtk_object_set_data_full (GTK_OBJECT (list_item), "gimp_path_editor",
directory,
(GtkDestroyNotify) g_free);
append_list = g_list_append (append_list, list_item);
gtk_signal_connect (GTK_OBJECT (list_item), "select",
GTK_SIGNAL_FUNC (gimp_path_editor_select_callback),
gpe);
gtk_signal_connect (GTK_OBJECT (list_item), "deselect",
GTK_SIGNAL_FUNC (gimp_path_editor_deselect_callback),
gpe);
gtk_widget_show (list_item);
gpe->number_of_items++;
gtk_list_append_items (GTK_LIST (gpe->dir_list), append_list);
gtk_list_select_item (GTK_LIST (gpe->dir_list), gpe->number_of_items - 1);
}
else
{
gtk_label_set_text (GTK_LABEL (GTK_BIN (gpe->selected_item)->child),
directory);
gtk_object_set_data_full (GTK_OBJECT (gpe->selected_item),
"gimp_path_editor",
directory,
(GtkDestroyNotify) g_free);
}
gtk_signal_emit (GTK_OBJECT (gpe), gimp_path_editor_signals[PATH_CHANGED]);
}
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