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mutter/clutter/clutter-model.h
Emmanuele Bassi 81e908f9fb 2007-12-10 Emmanuele Bassi <ebassi@openedhand.com> 
* clutter/clutter-model.[ch]: Allow unsorting the model (passing
	-1 as the sorting column)

	(clutter_model_iter_get_valist): Do not initialise twice che
	return value.
2007-12-10 16:22:05 +00:00

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/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Authored By Matthew Allum <mallum@openedhand.com>
* Neil Jagdish Patel <njp@o-hand.com>
* Emmanuele Bassi <ebassi@openedhand.com>
*
* Copyright (C) 2006 OpenedHand
*
* 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
* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __CLUTTER_MODEL_H__
#define __CLUTTER_MODEL_H__
#include <glib.h>
#include <glib-object.h>
G_BEGIN_DECLS
#define CLUTTER_TYPE_MODEL (clutter_model_get_type ())
#define CLUTTER_MODEL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_MODEL, ClutterModel))
#define CLUTTER_MODEL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_MODEL, ClutterModelClass))
#define CLUTTER_IS_MODEL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_MODEL))
#define CLUTTER_IS_MODEL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_MODEL))
#define CLUTTER_MODEL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_MODEL, ClutterModelClass))
typedef struct _ClutterModel ClutterModel;
typedef struct _ClutterModelClass ClutterModelClass;
typedef struct _ClutterModelPrivate ClutterModelPrivate;
typedef struct _ClutterModelIter ClutterModelIter;
typedef struct _ClutterModelIterClass ClutterModelIterClass;
typedef struct _ClutterModelIterPrivate ClutterModelIterPrivate;
/**
* ClutterModelFilterFunc:
* @model: a #ClutterModel
* @iter: the iterator for the row
* @user_data: data passed to clutter_model_set_filter()
*
* Filters the content of a row in the model.
*
* Return value: If the row should be displayed, return %TRUE
*
* Since: 0.6
*/
typedef gboolean (*ClutterModelFilterFunc) (ClutterModel *model,
ClutterModelIter *iter,
gpointer user_data);
/**
* ClutterModelSortFunc:
* @model: a #ClutterModel
* @a: a #GValue representing the contents of the row
* @b: a #GValue representing the contents of the second row
* @user_data: data passed to clutter_model_set_sort()
*
* Compares the content of two rows in the model.
*
* Return value: a positive integer if @a is after @b, a negative integer if
* @a is before @b, or 0 if the rows are the same
*
* Since: 0.6
*/
typedef gboolean (*ClutterModelSortFunc) (ClutterModel *model,
const GValue *a,
const GValue *b,
gpointer user_data);
/**
* ClutterModelForeachFunc:
* @model: a #ClutterModel
* @iter: the iterator for the row
* @user_data: data passed to clutter_model_foreach()
*
* Iterates on the content of a row in the model
*
* Return value: %TRUE if the iteration should continue, %FALSE otherwise
*
* Since: 0.6
*/
typedef gboolean (*ClutterModelForeachFunc) (ClutterModel *model,
ClutterModelIter *iter,
gpointer user_data);
/**
* ClutterModel:
*
* Base class for list models. The #ClutterModel structure contains
* only private data and should be manipulated using the provided
* API.
*
* Since: 0.6
*/
struct _ClutterModel
{
/*< private >*/
GObject parent_instance;
ClutterModelPrivate *priv;
};
/**
* ClutterModelClass:
* @row_added: signal class handler for ClutterModel::row-added
* @row_removed: signal class handler for ClutterModel::row-removed
* @row_changed: signal class handler for ClutterModel::row-changed
* @sort_changed: signal class handler for ClutterModel::sort-changed
* @filter_changed: signal class handler for ClutterModel::filter-changed
* @get_column_name: virtual function for returning the name of a column
* @get_column_type: virtual function for returning the type of a column
* @get_iter_at_row: virtual function for returning an iterator for the
* given row
*
* Class for #ClutterModel instances.
*
* Since: 0.6
*/
struct _ClutterModelClass
{
/*< private >*/
GObjectClass parent_class;
/*< public >*/
/* vtable */
const gchar * (* get_column_name) (ClutterModel *model,
guint column);
GType (* get_column_type) (ClutterModel *model,
guint column);
ClutterModelIter *(* get_iter_at_row) (ClutterModel *model,
guint row);
/* signals */
void (* row_added) (ClutterModel *model,
ClutterModelIter *iter);
void (* row_removed) (ClutterModel *model,
ClutterModelIter *iter);
void (* row_changed) (ClutterModel *model,
ClutterModelIter *iter);
void (* sort_changed) (ClutterModel *model);
void (* filter_changed) (ClutterModel *model);
/*< private >*/
/* padding for future */
void (*_clutter_model_1) (void);
void (*_clutter_model_2) (void);
void (*_clutter_model_3) (void);
void (*_clutter_model_4) (void);
};
GType clutter_model_get_type (void) G_GNUC_CONST;
ClutterModel * clutter_model_new (guint n_columns,
...);
ClutterModel * clutter_model_newv (guint n_columns,
GType *types,
const gchar * const names[]);
void clutter_model_set_types (ClutterModel *model,
guint n_columns,
GType *types);
void clutter_model_set_names (ClutterModel *model,
guint n_columns,
const gchar * const names[]);
void clutter_model_append (ClutterModel *model,
...);
void clutter_model_append_value (ClutterModel *model,
guint column,
const GValue *value);
void clutter_model_prepend (ClutterModel *model,
...);
void clutter_model_prepend_value (ClutterModel *model,
guint column,
const GValue *value);
void clutter_model_insert (ClutterModel *model,
guint row,
...);
void clutter_model_insert_value (ClutterModel *model,
guint row,
guint column,
const GValue *value);
void clutter_model_remove (ClutterModel *model,
guint row);
guint clutter_model_get_n_rows (ClutterModel *model);
G_CONST_RETURN gchar *clutter_model_get_column_name (ClutterModel *model,
guint column);
GType clutter_model_get_column_type (ClutterModel *model,
guint column);
guint clutter_model_get_n_columns (ClutterModel *model);
ClutterModelIter * clutter_model_get_first_iter (ClutterModel *model);
ClutterModelIter * clutter_model_get_last_iter (ClutterModel *model);
ClutterModelIter * clutter_model_get_iter_at_row (ClutterModel *model,
guint row);
void clutter_model_set_sorting_column (ClutterModel *model,
gint column);
gint clutter_model_get_sorting_column (ClutterModel *model);
void clutter_model_foreach (ClutterModel *model,
ClutterModelForeachFunc func,
gpointer user_data);
void clutter_model_set_sort (ClutterModel *model,
guint column,
ClutterModelSortFunc func,
gpointer user_data,
GDestroyNotify notify);
void clutter_model_set_filter (ClutterModel *model,
ClutterModelFilterFunc func,
gpointer user_data,
GDestroyNotify notify);
/*
* ClutterModelIter
*/
#define CLUTTER_TYPE_MODEL_ITER (clutter_model_iter_get_type ())
#define CLUTTER_MODEL_ITER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_MODEL_ITER, ClutterModelIter))
#define CLUTTER_MODEL_ITER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_MODEL_ITER, ClutterModelIterClass))
#define CLUTTER_IS_MODEL_ITER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_MODEL_ITER))
#define CLUTTER_IS_MODEL_ITER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_MODEL_ITER))
#define CLUTTER_MODEL_ITER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_MODEL_ITER, ClutterModelIterClass))
/**
* ClutterModelIter:
*
* Base class for list models iters. The #ClutterModelIter structure contains
* only private data and should be manipulated using the provided
* API.
*
* Since: 0.6
*/
struct _ClutterModelIter
{
/*< private >*/
GObject parent_instance;
ClutterModelIterPrivate *priv;
};
/**
* ClutterModelIterClass:
*
* Class for #ClutterModelIter instances.
*
* Since: 0.6
*/
struct _ClutterModelIterClass
{
/*< private >*/
GObjectClass parent_class;
/*< public >*/
/* vtable not signals */
void (* get_value) (ClutterModelIter *iter,
guint column,
GValue *value);
void (* set_value) (ClutterModelIter *iter,
guint column,
const GValue *value);
gboolean (* is_first) (ClutterModelIter *iter);
gboolean (* is_last) (ClutterModelIter *iter);
ClutterModelIter *(* next) (ClutterModelIter *iter);
ClutterModelIter *(* prev) (ClutterModelIter *iter);
ClutterModel* (* get_model) (ClutterModelIter *iter);
guint (* get_row) (ClutterModelIter *iter);
/*< private >*/
/* padding for future */
void (*_clutter_model_iter_1) (void);
void (*_clutter_model_iter_2) (void);
void (*_clutter_model_iter_3) (void);
void (*_clutter_model_iter_4) (void);
};
GType clutter_model_iter_get_type (void) G_GNUC_CONST;
void clutter_model_iter_get (ClutterModelIter *iter,
...);
void clutter_model_iter_get_valist (ClutterModelIter *iter,
va_list args);
void clutter_model_iter_get_value (ClutterModelIter *iter,
guint column,
GValue *value);
void clutter_model_iter_set (ClutterModelIter *iter,
...);
void clutter_model_iter_set_valist (ClutterModelIter *iter,
va_list args);
void clutter_model_iter_set_value (ClutterModelIter *iter,
guint column,
const GValue *value);
gboolean clutter_model_iter_is_first (ClutterModelIter *iter);
gboolean clutter_model_iter_is_last (ClutterModelIter *iter);
ClutterModelIter *clutter_model_iter_next (ClutterModelIter *iter);
ClutterModelIter *clutter_model_iter_prev (ClutterModelIter *iter);
ClutterModel * clutter_model_iter_get_model (ClutterModelIter *iter);
guint clutter_model_iter_get_row (ClutterModelIter *iter);
G_END_DECLS
#endif /* __CLUTTER_MODEL_H__ */
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