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gimp/app/widgets/gimptoolbar.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimptoolbar.c
* Copyright (C) 2023 Jehan
*
* 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 <gegl.h>
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "widgets-types.h"
#include "core/gimp.h"
#include "gimpaction.h"
#include "gimpenumaction.h"
#include "gimpprocedureaction.h"
#include "gimpradioaction.h"
#include "gimptoggleaction.h"
#include "gimptoolbar.h"
#include "gimpmenumodel.h"
#include "gimpmenushell.h"
#include "gimpuimanager.h"
#define GIMP_TOOLBAR_ACTION_KEY "gimp-toolbar-action"
/**
* GimpToolbar:
*
* Our own toolbar widget.
*
* It can be initialized with a GMenuModel.
*
* TODO: in the future, we could also give optional GUI-customizability to use
* it as a generic toolbar in GIMP's main window (where people could add any
* actions as buttons).
*/
/* local function prototypes */
static void gimp_toolbar_iface_init (GimpMenuShellInterface *iface);
static void gimp_toolbar_append (GimpMenuShell *shell,
GimpMenuModel *model);
static void gimp_toolbar_add_ui (GimpMenuShell *shell,
const gchar **paths,
const gchar *action_name,
gboolean top);
static void gimp_toolbar_add_action (GimpToolbar *toolbar,
const gchar *action_name,
gboolean top);
static void gimp_toolbar_toggle_item_toggled (GtkToggleToolButton *item,
GimpToggleAction *action);
static void gimp_toolbar_toggle_action_toggled (GimpToggleAction *action,
GtkToggleToolButton *item);
static void gimp_toolbar_action_notify_sensitive (GimpAction *action,
const GParamSpec *pspec,
GtkWidget *item);
static void gimp_toolbar_action_notify_visible (GimpAction *action,
const GParamSpec *pspec,
GtkWidget *item);
G_DEFINE_TYPE_WITH_CODE (GimpToolbar, gimp_toolbar, GTK_TYPE_TOOLBAR,
G_IMPLEMENT_INTERFACE (GIMP_TYPE_MENU_SHELL, gimp_toolbar_iface_init))
#define parent_class gimp_toolbar_parent_class
/* Class functions */
static void
gimp_toolbar_class_init (GimpToolbarClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->get_property = gimp_menu_shell_get_property;
object_class->set_property = gimp_menu_shell_set_property;
gimp_menu_shell_install_properties (object_class);
}
static void
gimp_toolbar_iface_init (GimpMenuShellInterface *iface)
{
iface->append = gimp_toolbar_append;
iface->add_ui = gimp_toolbar_add_ui;
}
static void
gimp_toolbar_init (GimpToolbar *bar)
{
gimp_menu_shell_init (GIMP_MENU_SHELL (bar));
}
static void
gimp_toolbar_append (GimpMenuShell *shell,
GimpMenuModel *model)
{
GimpToolbar *toolbar = GIMP_TOOLBAR (shell);
gint n_items;
g_return_if_fail (GTK_IS_CONTAINER (shell));
n_items = g_menu_model_get_n_items (G_MENU_MODEL (model));
for (gint i = 0; i < n_items; i++)
{
GMenuModel *subsection;
GMenuModel *submenu;
gchar *label = NULL;
gchar *action_name = NULL;
subsection = g_menu_model_get_item_link (G_MENU_MODEL (model), i, G_MENU_LINK_SECTION);
submenu = g_menu_model_get_item_link (G_MENU_MODEL (model), i, G_MENU_LINK_SUBMENU);
g_menu_model_get_item_attribute (G_MENU_MODEL (model), i, G_MENU_ATTRIBUTE_LABEL, "s", &label);
g_menu_model_get_item_attribute (G_MENU_MODEL (model), i, G_MENU_ATTRIBUTE_ACTION, "s", &action_name);
if (subsection != NULL)
{
GtkToolItem *item;
item = gtk_separator_tool_item_new ();
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
gtk_widget_show (GTK_WIDGET (item));
gimp_toolbar_append (shell, GIMP_MENU_MODEL (subsection));
item = gtk_separator_tool_item_new ();
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
gtk_widget_show (GTK_WIDGET (item));
}
else if (submenu == NULL && action_name != NULL)
{
gimp_toolbar_add_action (toolbar, action_name, FALSE);
}
else
{
if (submenu != NULL)
g_warning ("%s: unexpected submenu. Only actions and sections are allowed in toolbar's root.",
G_STRFUNC);
else if (label != NULL)
g_warning ("%s: unexpected label '%s'. Only actions and sections are allowed in toolbar's root.",
G_STRFUNC, label);
else
g_warning ("%s: unexpected toolbar item. Only actions and sections are allowed in toolbar's root.",
G_STRFUNC);
}
g_free (label);
g_free (action_name);
g_clear_object (&submenu);
g_clear_object (&subsection);
}
}
static void
gimp_toolbar_add_ui (GimpMenuShell *shell,
const gchar **paths,
const gchar *action_name,
gboolean top)
{
GimpToolbar *toolbar = GIMP_TOOLBAR (shell);
g_return_if_fail (paths != NULL);
if (paths[0] != NULL)
g_warning ("%s: unexpected path '%s'. Menus are not allowed in toolbar's root.",
G_STRFUNC, paths[0]);
else
gimp_toolbar_add_action (toolbar, action_name, top);
}
/* Public functions */
GtkWidget *
gimp_toolbar_new (GimpMenuModel *model,
GimpUIManager *manager)
{
g_return_val_if_fail (GIMP_IS_UI_MANAGER (manager) &&
G_IS_MENU_MODEL (model), NULL);
return g_object_new (GIMP_TYPE_TOOLBAR,
"model", model,
"manager", manager,
NULL);
}
/* Private functions */
static void
gimp_toolbar_add_action (GimpToolbar *toolbar,
const gchar *action_name,
gboolean top)
{
GimpUIManager *manager;
GimpAction *action;
const gchar *action_label;
GtkToolItem *item;
gboolean visible;
g_return_if_fail (GIMP_IS_TOOLBAR (toolbar));
manager = gimp_menu_shell_get_manager (GIMP_MENU_SHELL (toolbar));
action = gimp_ui_manager_find_action (manager, NULL, action_name);
g_return_if_fail (GIMP_IS_ACTION (action));
action_label = gimp_action_get_short_label (GIMP_ACTION (action));
g_return_if_fail (action_label != NULL);
if (GIMP_IS_TOGGLE_ACTION (action))
{
if (GIMP_IS_RADIO_ACTION (action))
{
GtkToolItem *sibling = NULL;
GSList *group = NULL;
if (top)
sibling = gtk_toolbar_get_nth_item (GTK_TOOLBAR (toolbar), 0);
else if (gtk_toolbar_get_n_items (GTK_TOOLBAR (toolbar)) > 0)
sibling = gtk_toolbar_get_nth_item (GTK_TOOLBAR (toolbar),
gtk_toolbar_get_n_items (GTK_TOOLBAR (toolbar)) - 1);
if (sibling != NULL && GTK_IS_RADIO_TOOL_BUTTON (sibling))
{
GimpAction *sibling_action;
sibling_action = g_object_get_data (G_OBJECT (sibling), GIMP_TOOLBAR_ACTION_KEY);
if (sibling_action != NULL &&
GIMP_IS_RADIO_ACTION (sibling_action) &&
gimp_radio_action_get_group (GIMP_RADIO_ACTION (sibling_action)) == gimp_radio_action_get_group (GIMP_RADIO_ACTION (action)))
group = gtk_radio_tool_button_get_group (GTK_RADIO_TOOL_BUTTON (sibling));
}
item = gtk_radio_tool_button_new (group);
}
else
{
item = gtk_toggle_tool_button_new ();
}
gtk_tool_button_set_label (GTK_TOOL_BUTTON (item), action_label);
gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item),
gimp_action_get_icon_name (GIMP_ACTION (action)));
gtk_toggle_tool_button_set_active (GTK_TOGGLE_TOOL_BUTTON (item),
gimp_toggle_action_get_active (GIMP_TOGGLE_ACTION (action)));
g_signal_connect (item, "toggled",
G_CALLBACK (gimp_toolbar_toggle_item_toggled),
action);
g_signal_connect_object (action, "toggled",
G_CALLBACK (gimp_toolbar_toggle_action_toggled),
item, 0);
}
else if (GIMP_IS_PROCEDURE_ACTION (action) ||
GIMP_IS_ENUM_ACTION (action))
{
item = gtk_tool_button_new (NULL, action_label);
g_signal_connect_swapped (item, "clicked",
G_CALLBACK (gimp_action_activate),
action);
}
else
{
item = gtk_tool_button_new (NULL, action_label);
gtk_actionable_set_action_name (GTK_ACTIONABLE (item), action_name);
}
g_object_set_data (G_OBJECT (item), GIMP_TOOLBAR_ACTION_KEY, action);
gimp_action_set_proxy (GIMP_ACTION (action), GTK_WIDGET (item));
gtk_widget_set_sensitive (GTK_WIDGET (item),
gimp_action_is_sensitive (GIMP_ACTION (action), NULL));
g_signal_connect_object (action, "notify::sensitive",
G_CALLBACK (gimp_toolbar_action_notify_sensitive),
item, 0);
if (top)
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, 0);
else
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
visible = gimp_action_is_visible (GIMP_ACTION (action));
gtk_widget_set_visible (GTK_WIDGET (item), visible);
g_signal_connect_object (action, "notify::visible",
G_CALLBACK (gimp_toolbar_action_notify_visible),
item, 0);
}
static void
gimp_toolbar_toggle_item_toggled (GtkToggleToolButton *item,
GimpToggleAction *action)
{
gboolean active = gtk_toggle_tool_button_get_active (item);
g_signal_handlers_block_by_func (action,
G_CALLBACK (gimp_toolbar_toggle_action_toggled),
item);
gimp_toggle_action_set_active (action, active);
g_signal_handlers_unblock_by_func (action,
G_CALLBACK (gimp_toolbar_toggle_action_toggled),
item);
}
static void
gimp_toolbar_toggle_action_toggled (GimpToggleAction *action,
GtkToggleToolButton *item)
{
gboolean active = gimp_toggle_action_get_active (action);
g_signal_handlers_block_by_func (item,
G_CALLBACK (gimp_toolbar_toggle_item_toggled),
action);
gtk_toggle_tool_button_set_active (item, active);
g_signal_handlers_unblock_by_func (item,
G_CALLBACK (gimp_toolbar_toggle_item_toggled),
action);
}
static void
gimp_toolbar_action_notify_sensitive (GimpAction *action,
const GParamSpec *pspec,
GtkWidget *item)
{
gtk_widget_set_sensitive (item, gimp_action_is_sensitive (action, NULL));
}
static void
gimp_toolbar_action_notify_visible (GimpAction *action,
const GParamSpec *pspec,
GtkWidget *item)
{
gtk_widget_set_visible (item, gimp_action_is_visible (action));
}
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