path: root/widgets/misc/e-reflow-model.h

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
#ifndef _E_REFLOW_MODEL_H_
#define _E_REFLOW_MODEL_H_

#include <gtk/gtkobject.h>
#include <libgnomeui/gnome-canvas.h>

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

#define E_REFLOW_MODEL_TYPE        (e_reflow_model_get_type ())
#define E_REFLOW_MODEL(o)          (GTK_CHECK_CAST ((o), E_REFLOW_MODEL_TYPE, EReflowModel))
#define E_REFLOW_MODEL_CLASS(k)    (GTK_CHECK_CLASS_CAST((k), E_REFLOW_MODEL_TYPE, EReflowModelClass))
#define E_IS_REFLOW_MODEL(o)       (GTK_CHECK_TYPE ((o), E_REFLOW_MODEL_TYPE))
#define E_IS_REFLOW_MODEL_CLASS(k) (GTK_CHECK_CLASS_TYPE ((k), E_REFLOW_MODEL_TYPE))

typedef struct {
    GtkObject   base;
} EReflowModel;

typedef struct {
    GtkObjectClass parent_class;

    /*
     * Virtual methods
     */
    void             (*set_width)      (EReflowModel *etm, int width);

    int              (*count)          (EReflowModel *etm);
    int              (*height)         (EReflowModel *etm, int n, GnomeCanvasGroup *parent);
    GnomeCanvasItem *(*incarnate)      (EReflowModel *etm, int n, GnomeCanvasGroup *parent);
    int              (*compare)        (EReflowModel *etm, int n1, int n2);
    void             (*reincarnate)    (EReflowModel *etm, int n, GnomeCanvasItem *item);
    
    /*
     * Signals
     */

    /*
     * These all come after the change has been made.
     * Major structural changes: model_changed
     * Changes only in an item: item_changed
     */
    void        (*model_changed)       (EReflowModel *etm);
    void        (*model_items_inserted) (EReflowModel *etm, int position, int count);
    void        (*model_item_changed)  (EReflowModel *etm, int n);
} EReflowModelClass;

GtkType          e_reflow_model_get_type        (void);

/**/
void             e_reflow_model_set_width       (EReflowModel     *e_reflow_model,
                         int               width);
int              e_reflow_model_count           (EReflowModel     *e_reflow_model);
int              e_reflow_model_height          (EReflowModel     *e_reflow_model,
                         int               n,
                         GnomeCanvasGroup *parent);
GnomeCanvasItem *e_reflow_model_incarnate       (EReflowModel     *e_reflow_model,
                         int               n,
                         GnomeCanvasGroup *parent);
int              e_reflow_model_compare         (EReflowModel     *e_reflow_model,
                         int               n1,
                         int               n2);
void             e_reflow_model_reincarnate     (EReflowModel     *e_reflow_model,
                         int               n,
                         GnomeCanvasItem  *item);

/*
 * Routines for emitting signals on the e_reflow
 */
void             e_reflow_model_changed         (EReflowModel     *e_reflow_model);
void             e_reflow_model_items_inserted  (EReflowModel     *e_reflow_model,
                         int               position,
                         int               count);
void             e_reflow_model_item_changed    (EReflowModel     *e_reflow_model,
                         int               n);

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* _E_REFLOW_MODEL_H_ */