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gimp/app/widgets/gimpdataeditor.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpdataeditor.c
* Copyright (C) 2002-2004 Michael Natterer <mitch@gimp.org>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimp.h"
#include "core/gimpcontainer.h"
#include "core/gimpcontext.h"
#include "core/gimpdata.h"
#include "core/gimpdatafactory.h"
#include "gimpdataeditor.h"
#include "gimpdocked.h"
#include "gimpmenufactory.h"
#include "gimpsessioninfo-aux.h"
#include "gimpuimanager.h"
#include "gimp-intl.h"
#define DEFAULT_MINIMAL_HEIGHT 96
enum
{
PROP_0,
PROP_DATA_FACTORY,
PROP_CONTEXT,
PROP_DATA
};
static void gimp_data_editor_docked_iface_init (GimpDockedInterface *iface);
static void gimp_data_editor_constructed (GObject *object);
static void gimp_data_editor_dispose (GObject *object);
static void gimp_data_editor_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_data_editor_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void gimp_data_editor_style_set (GtkWidget *widget,
GtkStyle *prev_style);
static void gimp_data_editor_set_context (GimpDocked *docked,
GimpContext *context);
static void gimp_data_editor_set_aux_info (GimpDocked *docked,
GList *aux_info);
static GList * gimp_data_editor_get_aux_info (GimpDocked *docked);
static gchar * gimp_data_editor_get_title (GimpDocked *docked);
static void gimp_data_editor_real_set_data (GimpDataEditor *editor,
GimpData *data);
static void gimp_data_editor_data_changed (GimpContext *context,
GimpData *data,
GimpDataEditor *editor);
static gboolean gimp_data_editor_name_key_press (GtkWidget *widget,
GdkEventKey *kevent,
GimpDataEditor *editor);
static void gimp_data_editor_name_activate (GtkWidget *widget,
GimpDataEditor *editor);
static gboolean gimp_data_editor_name_focus_out (GtkWidget *widget,
GdkEvent *event,
GimpDataEditor *editor);
static void gimp_data_editor_data_name_changed (GimpObject *object,
GimpDataEditor *editor);
static void gimp_data_editor_save_clicked (GtkWidget *widget,
GimpDataEditor *editor);
static void gimp_data_editor_revert_clicked (GtkWidget *widget,
GimpDataEditor *editor);
static void gimp_data_editor_save_dirty (GimpDataEditor *editor);
G_DEFINE_TYPE_WITH_CODE (GimpDataEditor, gimp_data_editor, GIMP_TYPE_EDITOR,
G_IMPLEMENT_INTERFACE (GIMP_TYPE_DOCKED,
gimp_data_editor_docked_iface_init))
#define parent_class gimp_data_editor_parent_class
static GimpDockedInterface *parent_docked_iface = NULL;
static void
gimp_data_editor_class_init (GimpDataEditorClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
object_class->constructed = gimp_data_editor_constructed;
object_class->dispose = gimp_data_editor_dispose;
object_class->set_property = gimp_data_editor_set_property;
object_class->get_property = gimp_data_editor_get_property;
widget_class->style_set = gimp_data_editor_style_set;
klass->set_data = gimp_data_editor_real_set_data;
g_object_class_install_property (object_class, PROP_DATA_FACTORY,
g_param_spec_object ("data-factory",
NULL, NULL,
GIMP_TYPE_DATA_FACTORY,
GIMP_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (object_class, PROP_CONTEXT,
g_param_spec_object ("context",
NULL, NULL,
GIMP_TYPE_CONTEXT,
GIMP_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (object_class, PROP_DATA,
g_param_spec_object ("data",
NULL, NULL,
GIMP_TYPE_DATA,
GIMP_PARAM_READWRITE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("minimal-height",
NULL, NULL,
32,
G_MAXINT,
DEFAULT_MINIMAL_HEIGHT,
GIMP_PARAM_READABLE));
}
static void
gimp_data_editor_docked_iface_init (GimpDockedInterface *iface)
{
parent_docked_iface = g_type_interface_peek_parent (iface);
if (! parent_docked_iface)
parent_docked_iface = g_type_default_interface_peek (GIMP_TYPE_DOCKED);
iface->set_context = gimp_data_editor_set_context;
iface->set_aux_info = gimp_data_editor_set_aux_info;
iface->get_aux_info = gimp_data_editor_get_aux_info;
iface->get_title = gimp_data_editor_get_title;
}
static void
gimp_data_editor_init (GimpDataEditor *editor)
{
editor->data_factory = NULL;
editor->context = NULL;
editor->data = NULL;
editor->data_editable = FALSE;
editor->name_entry = gtk_entry_new ();
gtk_box_pack_start (GTK_BOX (editor), editor->name_entry, FALSE, FALSE, 0);
gtk_widget_show (editor->name_entry);
gtk_editable_set_editable (GTK_EDITABLE (editor->name_entry), FALSE);
g_signal_connect (editor->name_entry, "key-press-event",
G_CALLBACK (gimp_data_editor_name_key_press),
editor);
g_signal_connect (editor->name_entry, "activate",
G_CALLBACK (gimp_data_editor_name_activate),
editor);
g_signal_connect (editor->name_entry, "focus-out-event",
G_CALLBACK (gimp_data_editor_name_focus_out),
editor);
}
static void
gimp_data_editor_constructed (GObject *object)
{
GimpDataEditor *editor = GIMP_DATA_EDITOR (object);
if (G_OBJECT_CLASS (parent_class)->constructed)
G_OBJECT_CLASS (parent_class)->constructed (object);
g_assert (GIMP_IS_DATA_FACTORY (editor->data_factory));
g_assert (GIMP_IS_CONTEXT (editor->context));
gimp_data_editor_set_edit_active (editor, TRUE);
editor->save_button =
gimp_editor_add_button (GIMP_EDITOR (editor),
GTK_STOCK_SAVE,
_("Save"), NULL,
G_CALLBACK (gimp_data_editor_save_clicked),
NULL,
editor);
editor->revert_button =
gimp_editor_add_button (GIMP_EDITOR (editor),
GTK_STOCK_REVERT_TO_SAVED,
_("Revert"), NULL,
G_CALLBACK (gimp_data_editor_revert_clicked),
NULL,
editor);
/* Set insensitive because revert buttons are not yet implemented */
gtk_widget_set_sensitive (editor->revert_button, FALSE);
}
static void
gimp_data_editor_dispose (GObject *object)
{
GimpDataEditor *editor = GIMP_DATA_EDITOR (object);
if (editor->data)
{
/* Save dirty data before we clear out */
gimp_data_editor_save_dirty (editor);
gimp_data_editor_set_data (editor, NULL);
}
if (editor->context)
gimp_docked_set_context (GIMP_DOCKED (editor), NULL);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gimp_data_editor_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpDataEditor *editor = GIMP_DATA_EDITOR (object);
switch (property_id)
{
case PROP_DATA_FACTORY:
editor->data_factory = g_value_get_object (value);
break;
case PROP_CONTEXT:
gimp_docked_set_context (GIMP_DOCKED (object),
g_value_get_object (value));
break;
case PROP_DATA:
gimp_data_editor_set_data (editor, g_value_get_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_data_editor_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpDataEditor *editor = GIMP_DATA_EDITOR (object);
switch (property_id)
{
case PROP_DATA_FACTORY:
g_value_set_object (value, editor->data_factory);
break;
case PROP_CONTEXT:
g_value_set_object (value, editor->context);
break;
case PROP_DATA:
g_value_set_object (value, editor->data);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_data_editor_style_set (GtkWidget *widget,
GtkStyle *prev_style)
{
GimpDataEditor *editor = GIMP_DATA_EDITOR (widget);
gint minimal_height;
GTK_WIDGET_CLASS (parent_class)->style_set (widget, prev_style);
gtk_widget_style_get (widget,
"minimal-height", &minimal_height,
NULL);
if (editor->view)
gtk_widget_set_size_request (editor->view, -1, minimal_height);
}
static void
gimp_data_editor_set_context (GimpDocked *docked,
GimpContext *context)
{
GimpDataEditor *editor = GIMP_DATA_EDITOR (docked);
if (context == editor->context)
return;
if (parent_docked_iface->set_context)
parent_docked_iface->set_context (docked, context);
if (editor->context)
{
g_signal_handlers_disconnect_by_func (editor->context,
gimp_data_editor_data_changed,
editor);
g_object_unref (editor->context);
}
editor->context = context;
if (editor->context)
{
GType data_type;
GimpData *data;
g_object_ref (editor->context);
data_type = gimp_container_get_children_type (gimp_data_factory_get_container (editor->data_factory));
data = GIMP_DATA (gimp_context_get_by_type (editor->context, data_type));
g_signal_connect (editor->context,
gimp_context_type_to_signal_name (data_type),
G_CALLBACK (gimp_data_editor_data_changed),
editor);
gimp_data_editor_data_changed (editor->context, data, editor);
}
}
#define AUX_INFO_EDIT_ACTIVE "edit-active"
#define AUX_INFO_CURRENT_DATA "current-data"
static void
gimp_data_editor_set_aux_info (GimpDocked *docked,
GList *aux_info)
{
GimpDataEditor *editor = GIMP_DATA_EDITOR (docked);
GList *list;
parent_docked_iface->set_aux_info (docked, aux_info);
for (list = aux_info; list; list = g_list_next (list))
{
GimpSessionInfoAux *aux = list->data;
if (! strcmp (aux->name, AUX_INFO_EDIT_ACTIVE))
{
gboolean edit_active;
edit_active = ! g_ascii_strcasecmp (aux->value, "true");
gimp_data_editor_set_edit_active (editor, edit_active);
}
else if (! strcmp (aux->name, AUX_INFO_CURRENT_DATA))
{
if (! editor->edit_active)
{
GimpData *data;
data = (GimpData *)
gimp_container_get_child_by_name (gimp_data_factory_get_container (editor->data_factory),
aux->value);
if (data)
gimp_data_editor_set_data (editor, data);
}
}
}
}
static GList *
gimp_data_editor_get_aux_info (GimpDocked *docked)
{
GimpDataEditor *editor = GIMP_DATA_EDITOR (docked);
GList *aux_info;
GimpSessionInfoAux *aux;
aux_info = parent_docked_iface->get_aux_info (docked);
aux = gimp_session_info_aux_new (AUX_INFO_EDIT_ACTIVE,
editor->edit_active ? "true" : "false");
aux_info = g_list_append (aux_info, aux);
if (editor->data)
{
const gchar *value;
value = gimp_object_get_name (editor->data);
aux = gimp_session_info_aux_new (AUX_INFO_CURRENT_DATA, value);
aux_info = g_list_append (aux_info, aux);
}
return aux_info;
}
static gchar *
gimp_data_editor_get_title (GimpDocked *docked)
{
GimpDataEditor *editor = GIMP_DATA_EDITOR (docked);
GimpDataEditorClass *editor_class = GIMP_DATA_EDITOR_GET_CLASS (editor);
if (editor->data_editable)
return g_strdup (editor_class->title);
else
return g_strdup_printf (_("%s (read only)"), editor_class->title);
}
static void
gimp_data_editor_real_set_data (GimpDataEditor *editor,
GimpData *data)
{
gboolean editable;
if (editor->data)
{
g_signal_handlers_disconnect_by_func (editor->data,
gimp_data_editor_data_name_changed,
editor);
g_object_unref (editor->data);
}
editor->data = data;
if (editor->data)
{
g_object_ref (editor->data);
g_signal_connect (editor->data, "name-changed",
G_CALLBACK (gimp_data_editor_data_name_changed),
editor);
gtk_entry_set_text (GTK_ENTRY (editor->name_entry),
gimp_object_get_name (editor->data));
}
else
{
gtk_entry_set_text (GTK_ENTRY (editor->name_entry), "");
}
editable = (editor->data && gimp_data_is_writable (editor->data));
if (editor->data_editable != editable)
{
editor->data_editable = editable;
gtk_editable_set_editable (GTK_EDITABLE (editor->name_entry), editable);
gimp_docked_title_changed (GIMP_DOCKED (editor));
}
}
void
gimp_data_editor_set_data (GimpDataEditor *editor,
GimpData *data)
{
g_return_if_fail (GIMP_IS_DATA_EDITOR (editor));
g_return_if_fail (data == NULL || GIMP_IS_DATA (data));
g_return_if_fail (data == NULL ||
g_type_is_a (G_TYPE_FROM_INSTANCE (data),
gimp_container_get_children_type (gimp_data_factory_get_container (editor->data_factory))));
if (editor->data != data)
{
GIMP_DATA_EDITOR_GET_CLASS (editor)->set_data (editor, data);
g_object_notify (G_OBJECT (editor), "data");
if (GIMP_EDITOR (editor)->ui_manager)
gimp_ui_manager_update (GIMP_EDITOR (editor)->ui_manager,
GIMP_EDITOR (editor)->popup_data);
}
}
GimpData *
gimp_data_editor_get_data (GimpDataEditor *editor)
{
g_return_val_if_fail (GIMP_IS_DATA_EDITOR (editor), NULL);
return editor->data;
}
void
gimp_data_editor_set_edit_active (GimpDataEditor *editor,
gboolean edit_active)
{
g_return_if_fail (GIMP_IS_DATA_EDITOR (editor));
if (editor->edit_active != edit_active)
{
editor->edit_active = edit_active;
if (editor->edit_active && editor->context)
{
GType data_type;
GimpData *data;
data_type = gimp_container_get_children_type (gimp_data_factory_get_container (editor->data_factory));
data = GIMP_DATA (gimp_context_get_by_type (editor->context,
data_type));
gimp_data_editor_set_data (editor, data);
}
}
}
gboolean
gimp_data_editor_get_edit_active (GimpDataEditor *editor)
{
g_return_val_if_fail (GIMP_IS_DATA_EDITOR (editor), FALSE);
return editor->edit_active;
}
/* private functions */
static void
gimp_data_editor_data_changed (GimpContext *context,
GimpData *data,
GimpDataEditor *editor)
{
if (editor->edit_active)
gimp_data_editor_set_data (editor, data);
}
static gboolean
gimp_data_editor_name_key_press (GtkWidget *widget,
GdkEventKey *kevent,
GimpDataEditor *editor)
{
if (kevent->keyval == GDK_Escape)
{
gtk_entry_set_text (GTK_ENTRY (editor->name_entry),
gimp_object_get_name (editor->data));
return TRUE;
}
return FALSE;
}
static void
gimp_data_editor_name_activate (GtkWidget *widget,
GimpDataEditor *editor)
{
if (editor->data)
{
gchar *new_name;
new_name = g_strdup (gtk_entry_get_text (GTK_ENTRY (widget)));
new_name = g_strstrip (new_name);
if (strlen (new_name))
{
gimp_object_take_name (GIMP_OBJECT (editor->data), new_name);
}
else
{
gtk_entry_set_text (GTK_ENTRY (widget),
gimp_object_get_name (editor->data));
g_free (new_name);
}
}
}
static gboolean
gimp_data_editor_name_focus_out (GtkWidget *widget,
GdkEvent *event,
GimpDataEditor *editor)
{
gimp_data_editor_name_activate (widget, editor);
return FALSE;
}
static void
gimp_data_editor_data_name_changed (GimpObject *object,
GimpDataEditor *editor)
{
gtk_entry_set_text (GTK_ENTRY (editor->name_entry),
gimp_object_get_name (object));
}
static void
gimp_data_editor_save_clicked (GtkWidget *widget,
GimpDataEditor *editor)
{
gimp_data_editor_save_dirty (editor);
}
static void
gimp_data_editor_revert_clicked (GtkWidget *widget,
GimpDataEditor *editor)
{
g_print ("TODO: implement revert\n");
}
static void
gimp_data_editor_save_dirty (GimpDataEditor *editor)
{
GimpData *data = editor->data;
if (data &&
gimp_data_is_dirty (data) &&
gimp_data_is_writable (data))
{
GError *error = NULL;
if (! gimp_data_factory_data_save_single (editor->data_factory, data,
&error))
{
gimp_message_literal (gimp_data_factory_get_gimp (editor->data_factory),
G_OBJECT (editor),
GIMP_MESSAGE_ERROR,
error->message);
g_clear_error (&error);
}
}
}
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