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/*
* Copyright © 2019 Benjamin Otte
*
* 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 2.1 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
* Lesser 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, see <http://www.gnu.org/licenses/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#ifndef __GTK_EXPRESSION_H__
#define __GTK_EXPRESSION_H__
#include <gtk/gtktypes.h>
G_BEGIN_DECLS
#define GTK_TYPE_EXPRESSION (gtk_expression_get_type ())
#define GTK_TYPE_EXPRESSION_WATCH (gtk_expression_watch_get_type())
#define GTK_IS_EXPRESSION(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_EXPRESSION))
#define GTK_EXPRESSION(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_EXPRESSION, GtkExpression))
typedef struct _GtkExpression GtkExpression;
typedef struct _GtkExpressionWatch GtkExpressionWatch;
/**
* GtkExpressionNotify:
* @user_data: data passed to gtk_expression_watch()
*
* Callback called by gtk_expression_watch() when the
* expression value changes.
*/
typedef void (* GtkExpressionNotify) (gpointer user_data);
GDK_AVAILABLE_IN_ALL
GType gtk_expression_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GtkExpression * gtk_expression_ref (GtkExpression *self);
GDK_AVAILABLE_IN_ALL
void gtk_expression_unref (GtkExpression *self);
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GtkExpression, gtk_expression_unref)
GDK_AVAILABLE_IN_ALL
GType gtk_expression_get_value_type (GtkExpression *self);
GDK_AVAILABLE_IN_ALL
gboolean gtk_expression_is_static (GtkExpression *self);
GDK_AVAILABLE_IN_ALL
gboolean gtk_expression_evaluate (GtkExpression *self,
gpointer this_,
GValue *value);
GDK_AVAILABLE_IN_ALL
GtkExpressionWatch * gtk_expression_watch (GtkExpression *self,
gpointer this_,
GtkExpressionNotify notify,
gpointer user_data,
GDestroyNotify user_destroy);
GDK_AVAILABLE_IN_ALL
GtkExpressionWatch * gtk_expression_bind (GtkExpression *self,
gpointer target,
const char * property,
gpointer this_);
GDK_AVAILABLE_IN_4_2
GType gtk_expression_watch_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GtkExpressionWatch * gtk_expression_watch_ref (GtkExpressionWatch *watch);
GDK_AVAILABLE_IN_ALL
void gtk_expression_watch_unref (GtkExpressionWatch *watch);
GDK_AVAILABLE_IN_ALL
gboolean gtk_expression_watch_evaluate (GtkExpressionWatch *watch,
GValue *value);
GDK_AVAILABLE_IN_ALL
void gtk_expression_watch_unwatch (GtkExpressionWatch *watch);
#define GTK_TYPE_PROPERTY_EXPRESSION (gtk_property_expression_get_type())
typedef struct _GtkPropertyExpression GtkPropertyExpression;
GDK_AVAILABLE_IN_ALL
GType gtk_property_expression_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GtkExpression * gtk_property_expression_new (GType this_type,
GtkExpression *expression,
const char *property_name);
GDK_AVAILABLE_IN_ALL
GtkExpression * gtk_property_expression_new_for_pspec (GtkExpression *expression,
GParamSpec *pspec);
GDK_AVAILABLE_IN_ALL
GtkExpression * gtk_property_expression_get_expression (GtkExpression *expression);
GDK_AVAILABLE_IN_ALL
GParamSpec * gtk_property_expression_get_pspec (GtkExpression *expression);
#define GTK_TYPE_CONSTANT_EXPRESSION (gtk_constant_expression_get_type())
typedef struct _GtkConstantExpression GtkConstantExpression;
GDK_AVAILABLE_IN_ALL
GType gtk_constant_expression_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GtkExpression * gtk_constant_expression_new (GType value_type,
...);
GDK_AVAILABLE_IN_ALL
GtkExpression * gtk_constant_expression_new_for_value (const GValue *value);
GDK_AVAILABLE_IN_ALL
const GValue * gtk_constant_expression_get_value (GtkExpression *expression);
#define GTK_TYPE_OBJECT_EXPRESSION (gtk_object_expression_get_type())
typedef struct _GtkObjectExpression GtkObjectExpression;
GDK_AVAILABLE_IN_ALL
GType gtk_object_expression_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GtkExpression * gtk_object_expression_new (GObject *object);
GDK_AVAILABLE_IN_ALL
GObject * gtk_object_expression_get_object (GtkExpression *expression);
#define GTK_TYPE_CLOSURE_EXPRESSION (gtk_closure_expression_get_type())
typedef struct _GtkClosureExpression GtkClosureExpression;
GDK_AVAILABLE_IN_ALL
GType gtk_closure_expression_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GtkExpression * gtk_closure_expression_new (GType value_type,
GClosure *closure,
guint n_params,
GtkExpression **params);
#define GTK_TYPE_CCLOSURE_EXPRESSION (gtk_cclosure_expression_get_type())
typedef struct _GtkCClosureExpression GtkCClosureExpression;
GDK_AVAILABLE_IN_ALL
GType gtk_cclosure_expression_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GtkExpression * gtk_cclosure_expression_new (GType value_type,
GClosureMarshal marshal,
guint n_params,
GtkExpression **params,
GCallback callback_func,
gpointer user_data,
GClosureNotify user_destroy);
/* GObject integration, so we can use GtkBuilder */
/**
* GTK_VALUE_HOLDS_EXPRESSION:
* @value: a `GValue`
*
* Evaluates to %TRUE if @value was initialized with %GTK_TYPE_EXPRESSION.
*/
#define GTK_VALUE_HOLDS_EXPRESSION(value) (G_VALUE_HOLDS ((value), GTK_TYPE_EXPRESSION))
GDK_AVAILABLE_IN_ALL
void gtk_value_set_expression (GValue *value,
GtkExpression *expression);
GDK_AVAILABLE_IN_ALL
void gtk_value_take_expression (GValue *value,
GtkExpression *expression);
GDK_AVAILABLE_IN_ALL
GtkExpression * gtk_value_get_expression (const GValue *value);
GDK_AVAILABLE_IN_ALL
GtkExpression * gtk_value_dup_expression (const GValue *value);
#define GTK_TYPE_PARAM_SPEC_EXPRESSION (gtk_param_expression_get_type())
#define GTK_PARAM_SPEC_EXPRESSION(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_PARAM_SPEC_EXPRESSION, GtkParamSpecExpression))
#define GTK_IS_PARAM_SPEC_EXPRESSION(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_PARAM_SPEC_EXPRESSION))
/**
* GtkParamSpecExpression:
*
* A `GParamSpec` for properties holding a `GtkExpression`.
*/
typedef struct {
/*< private >*/
GParamSpec parent_instance;
} GtkParamSpecExpression;
GDK_AVAILABLE_IN_ALL
GType gtk_param_expression_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GParamSpec * gtk_param_spec_expression (const char *name,
const char *nick,
const char *blurb,
GParamFlags flags);
G_END_DECLS
#endif /* __GTK_EXPRESSION_H__ */
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