PIKApp/app/widgets/pikadataeditor.c

623 lines
20 KiB
C

/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* pikadataeditor.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 <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <gegl.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "libpikabase/pikabase.h"
#include "libpikawidgets/pikawidgets.h"
#include "widgets-types.h"
#include "core/pika.h"
#include "core/pikacontainer.h"
#include "core/pikacontext.h"
#include "core/pikadata.h"
#include "core/pikadatafactory.h"
#include "pikadataeditor.h"
#include "pikadocked.h"
#include "pikamenufactory.h"
#include "pikasessioninfo-aux.h"
#include "pikauimanager.h"
#include "pika-intl.h"
#define DEFAULT_MINIMAL_HEIGHT 96
enum
{
PROP_0,
PROP_DATA_FACTORY,
PROP_CONTEXT,
PROP_DATA
};
static void pika_data_editor_docked_iface_init (PikaDockedInterface *iface);
static void pika_data_editor_constructed (GObject *object);
static void pika_data_editor_dispose (GObject *object);
static void pika_data_editor_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void pika_data_editor_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void pika_data_editor_style_updated (GtkWidget *widget);
static void pika_data_editor_set_context (PikaDocked *docked,
PikaContext *context);
static void pika_data_editor_set_aux_info (PikaDocked *docked,
GList *aux_info);
static GList * pika_data_editor_get_aux_info (PikaDocked *docked);
static gchar * pika_data_editor_get_title (PikaDocked *docked);
static void pika_data_editor_real_set_data (PikaDataEditor *editor,
PikaData *data);
static void pika_data_editor_data_changed (PikaContext *context,
PikaData *data,
PikaDataEditor *editor);
static gboolean pika_data_editor_name_key_press (GtkWidget *widget,
GdkEventKey *kevent,
PikaDataEditor *editor);
static void pika_data_editor_name_activate (GtkWidget *widget,
PikaDataEditor *editor);
static gboolean pika_data_editor_name_focus_out (GtkWidget *widget,
GdkEvent *event,
PikaDataEditor *editor);
static void pika_data_editor_data_name_changed (PikaObject *object,
PikaDataEditor *editor);
static void pika_data_editor_save_dirty (PikaDataEditor *editor);
G_DEFINE_TYPE_WITH_CODE (PikaDataEditor, pika_data_editor, PIKA_TYPE_EDITOR,
G_IMPLEMENT_INTERFACE (PIKA_TYPE_DOCKED,
pika_data_editor_docked_iface_init))
#define parent_class pika_data_editor_parent_class
static PikaDockedInterface *parent_docked_iface = NULL;
static void
pika_data_editor_class_init (PikaDataEditorClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
object_class->constructed = pika_data_editor_constructed;
object_class->set_property = pika_data_editor_set_property;
object_class->get_property = pika_data_editor_get_property;
object_class->dispose = pika_data_editor_dispose;
widget_class->style_updated = pika_data_editor_style_updated;
klass->set_data = pika_data_editor_real_set_data;
g_object_class_install_property (object_class, PROP_DATA_FACTORY,
g_param_spec_object ("data-factory",
NULL, NULL,
PIKA_TYPE_DATA_FACTORY,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (object_class, PROP_CONTEXT,
g_param_spec_object ("context",
NULL, NULL,
PIKA_TYPE_CONTEXT,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (object_class, PROP_DATA,
g_param_spec_object ("data",
NULL, NULL,
PIKA_TYPE_DATA,
PIKA_PARAM_READWRITE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("minimal-height",
NULL, NULL,
32,
G_MAXINT,
DEFAULT_MINIMAL_HEIGHT,
PIKA_PARAM_READABLE));
}
static void
pika_data_editor_docked_iface_init (PikaDockedInterface *iface)
{
parent_docked_iface = g_type_interface_peek_parent (iface);
if (! parent_docked_iface)
parent_docked_iface = g_type_default_interface_peek (PIKA_TYPE_DOCKED);
iface->set_context = pika_data_editor_set_context;
iface->set_aux_info = pika_data_editor_set_aux_info;
iface->get_aux_info = pika_data_editor_get_aux_info;
iface->get_title = pika_data_editor_get_title;
}
static void
pika_data_editor_init (PikaDataEditor *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 (pika_data_editor_name_key_press),
editor);
g_signal_connect (editor->name_entry, "activate",
G_CALLBACK (pika_data_editor_name_activate),
editor);
g_signal_connect (editor->name_entry, "focus-out-event",
G_CALLBACK (pika_data_editor_name_focus_out),
editor);
}
static void
pika_data_editor_constructed (GObject *object)
{
PikaDataEditor *editor = PIKA_DATA_EDITOR (object);
G_OBJECT_CLASS (parent_class)->constructed (object);
pika_assert (PIKA_IS_DATA_FACTORY (editor->data_factory));
pika_assert (PIKA_IS_CONTEXT (editor->context));
pika_data_editor_set_edit_active (editor, TRUE);
}
static void
pika_data_editor_dispose (GObject *object)
{
PikaDataEditor *editor = PIKA_DATA_EDITOR (object);
if (editor->data)
{
/* Save dirty data before we clear out */
pika_data_editor_save_dirty (editor);
pika_data_editor_set_data (editor, NULL);
}
if (editor->context)
pika_docked_set_context (PIKA_DOCKED (editor), NULL);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
pika_data_editor_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
PikaDataEditor *editor = PIKA_DATA_EDITOR (object);
switch (property_id)
{
case PROP_DATA_FACTORY:
editor->data_factory = g_value_get_object (value);
break;
case PROP_CONTEXT:
pika_docked_set_context (PIKA_DOCKED (object),
g_value_get_object (value));
break;
case PROP_DATA:
pika_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
pika_data_editor_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
PikaDataEditor *editor = PIKA_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
pika_data_editor_style_updated (GtkWidget *widget)
{
PikaDataEditor *editor = PIKA_DATA_EDITOR (widget);
gint minimal_height;
GTK_WIDGET_CLASS (parent_class)->style_updated (widget);
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
pika_data_editor_set_context (PikaDocked *docked,
PikaContext *context)
{
PikaDataEditor *editor = PIKA_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,
pika_data_editor_data_changed,
editor);
g_object_unref (editor->context);
}
editor->context = context;
if (editor->context)
{
GType data_type;
PikaData *data;
g_object_ref (editor->context);
data_type = pika_data_factory_get_data_type (editor->data_factory);
data = PIKA_DATA (pika_context_get_by_type (editor->context, data_type));
g_signal_connect (editor->context,
pika_context_type_to_signal_name (data_type),
G_CALLBACK (pika_data_editor_data_changed),
editor);
pika_data_editor_data_changed (editor->context, data, editor);
}
}
#define AUX_INFO_EDIT_ACTIVE "edit-active"
#define AUX_INFO_CURRENT_DATA "current-data"
static void
pika_data_editor_set_aux_info (PikaDocked *docked,
GList *aux_info)
{
PikaDataEditor *editor = PIKA_DATA_EDITOR (docked);
GList *list;
parent_docked_iface->set_aux_info (docked, aux_info);
for (list = aux_info; list; list = g_list_next (list))
{
PikaSessionInfoAux *aux = list->data;
if (! strcmp (aux->name, AUX_INFO_EDIT_ACTIVE))
{
gboolean edit_active;
edit_active = ! g_ascii_strcasecmp (aux->value, "true");
pika_data_editor_set_edit_active (editor, edit_active);
}
else if (! strcmp (aux->name, AUX_INFO_CURRENT_DATA))
{
if (! editor->edit_active)
{
PikaData *data;
data = (PikaData *)
pika_container_get_child_by_name (pika_data_factory_get_container (editor->data_factory),
aux->value);
if (data)
pika_data_editor_set_data (editor, data);
}
}
}
}
static GList *
pika_data_editor_get_aux_info (PikaDocked *docked)
{
PikaDataEditor *editor = PIKA_DATA_EDITOR (docked);
GList *aux_info;
PikaSessionInfoAux *aux;
aux_info = parent_docked_iface->get_aux_info (docked);
aux = pika_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 = pika_object_get_name (editor->data);
aux = pika_session_info_aux_new (AUX_INFO_CURRENT_DATA, value);
aux_info = g_list_append (aux_info, aux);
}
return aux_info;
}
static gchar *
pika_data_editor_get_title (PikaDocked *docked)
{
PikaDataEditor *editor = PIKA_DATA_EDITOR (docked);
PikaDataEditorClass *editor_class = PIKA_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
pika_data_editor_real_set_data (PikaDataEditor *editor,
PikaData *data)
{
gboolean editable;
if (editor->data)
{
pika_data_editor_save_dirty (editor);
g_signal_handlers_disconnect_by_func (editor->data,
pika_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 (pika_data_editor_data_name_changed),
editor);
gtk_entry_set_text (GTK_ENTRY (editor->name_entry),
pika_object_get_name (editor->data));
}
else
{
gtk_entry_set_text (GTK_ENTRY (editor->name_entry), "");
}
gtk_editable_set_editable (
GTK_EDITABLE (editor->name_entry),
editor->data &&
pika_viewable_is_name_editable (PIKA_VIEWABLE (editor->data)));
editable = (editor->data && pika_data_is_writable (editor->data));
if (editor->data_editable != editable)
{
editor->data_editable = editable;
pika_docked_title_changed (PIKA_DOCKED (editor));
}
}
void
pika_data_editor_set_data (PikaDataEditor *editor,
PikaData *data)
{
g_return_if_fail (PIKA_IS_DATA_EDITOR (editor));
g_return_if_fail (data == NULL || PIKA_IS_DATA (data));
g_return_if_fail (data == NULL ||
g_type_is_a (G_TYPE_FROM_INSTANCE (data),
pika_data_factory_get_data_type (editor->data_factory)));
if (editor->data != data)
{
PIKA_DATA_EDITOR_GET_CLASS (editor)->set_data (editor, data);
g_object_notify (G_OBJECT (editor), "data");
if (pika_editor_get_ui_manager (PIKA_EDITOR (editor)))
pika_ui_manager_update (pika_editor_get_ui_manager (PIKA_EDITOR (editor)),
pika_editor_get_popup_data (PIKA_EDITOR (editor)));
}
}
PikaData *
pika_data_editor_get_data (PikaDataEditor *editor)
{
g_return_val_if_fail (PIKA_IS_DATA_EDITOR (editor), NULL);
return editor->data;
}
void
pika_data_editor_set_edit_active (PikaDataEditor *editor,
gboolean edit_active)
{
g_return_if_fail (PIKA_IS_DATA_EDITOR (editor));
if (editor->edit_active != edit_active)
{
editor->edit_active = edit_active;
if (editor->edit_active && editor->context)
{
GType data_type;
PikaData *data;
data_type = pika_data_factory_get_data_type (editor->data_factory);
data = PIKA_DATA (pika_context_get_by_type (editor->context,
data_type));
pika_data_editor_set_data (editor, data);
}
}
}
gboolean
pika_data_editor_get_edit_active (PikaDataEditor *editor)
{
g_return_val_if_fail (PIKA_IS_DATA_EDITOR (editor), FALSE);
return editor->edit_active;
}
/* private functions */
static void
pika_data_editor_data_changed (PikaContext *context,
PikaData *data,
PikaDataEditor *editor)
{
if (editor->edit_active)
pika_data_editor_set_data (editor, data);
}
static gboolean
pika_data_editor_name_key_press (GtkWidget *widget,
GdkEventKey *kevent,
PikaDataEditor *editor)
{
if (kevent->keyval == GDK_KEY_Escape)
{
gtk_entry_set_text (GTK_ENTRY (editor->name_entry),
pika_object_get_name (editor->data));
return TRUE;
}
return FALSE;
}
static void
pika_data_editor_name_activate (GtkWidget *widget,
PikaDataEditor *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) &&
g_strcmp0 (new_name, pika_object_get_name (editor->data)))
{
pika_object_take_name (PIKA_OBJECT (editor->data), new_name);
}
else
{
gtk_entry_set_text (GTK_ENTRY (widget),
pika_object_get_name (editor->data));
g_free (new_name);
}
}
}
static gboolean
pika_data_editor_name_focus_out (GtkWidget *widget,
GdkEvent *event,
PikaDataEditor *editor)
{
pika_data_editor_name_activate (widget, editor);
return FALSE;
}
static void
pika_data_editor_data_name_changed (PikaObject *object,
PikaDataEditor *editor)
{
gtk_entry_set_text (GTK_ENTRY (editor->name_entry),
pika_object_get_name (object));
}
static void
pika_data_editor_save_dirty (PikaDataEditor *editor)
{
PikaData *data = editor->data;
if (data &&
pika_data_is_dirty (data) &&
pika_data_is_writable (data))
{
GError *error = NULL;
if (! pika_data_factory_data_save_single (editor->data_factory, data,
&error))
{
pika_message_literal (pika_data_factory_get_pika (editor->data_factory),
G_OBJECT (editor),
PIKA_MESSAGE_ERROR,
error->message);
g_clear_error (&error);
}
}
}