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/*
 *
 * This program 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) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>
 *
 *
 * Authors:
 *      Damon Chaplin <damon@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

/*
 * ECellPopup - an ECell used to support popup selections like a GtkCombo
 * widget. It contains a child ECell, e.g. an ECellText, but when selected it
 * displays an arrow on the right edge which the user can click to show a
 * popup. It will support subclassing or signals so that different types of
 * popup can be provided.
 */

#ifndef _E_CELL_POPUP_H_
#define _E_CELL_POPUP_H_

#include <libgnomecanvas/libgnomecanvas.h>
#include <table/e-cell.h>

/* Standard GObject macros */
#define E_TYPE_CELL_POPUP \
    (e_cell_popup_get_type ())
#define E_CELL_POPUP(obj) \
    (G_TYPE_CHECK_INSTANCE_CAST \
    ((obj), E_TYPE_CELL_POPUP, ECellPopup))
#define E_CELL_POPUP_CLASS(cls) \
    (G_TYPE_CHECK_CLASS_CAST \
    ((cls), E_TYPE_CELL_POPUP, ECellPopupClass))
#define E_IS_CELL_POPUP(obj) \
    (G_TYPE_CHECK_INSTANCE_TYPE \
    ((obj), E_TYPE_CELL_POPUP))
#define E_IS_CELL_POPUP_CLASS(cls) \
    (G_TYPE_CHECK_CLASS_TYPE \
    ((cls), E_TYPE_CELL_POPUP))
#define E_CELL_POPUP_GET_CLASS(obj) \
    (G_TYPE_INSTANCE_GET_CLASS \
    ((obj), E_TYPE_CELL_POPUP, ECellPopupClass))

G_BEGIN_DECLS

typedef struct _ECellPopup ECellPopup;
typedef struct _ECellPopupView ECellPopupView;
typedef struct _ECellPopupClass ECellPopupClass;

struct _ECellPopup {
    ECell parent;

    ECell *child;

    /* This is TRUE if the popup window is shown for the cell being
     * edited. While shown we display the arrow indented. */
    gboolean popup_shown;

    /* This is TRUE if the popup arrow is shown for the cell being edited.
     * This is needed to stop the first click on the cell from popping up
     * the popup window. We only popup the window after we have drawn the
     * arrow. */
    gboolean popup_arrow_shown;

    /* The view in which the popup is shown. */
    ECellPopupView *popup_cell_view;

    gint popup_view_col;
    gint popup_row;
    ETableModel *popup_model;
};

struct _ECellPopupView {
    ECellView cell_view;

    ECellView *child_view;
};

struct _ECellPopupClass {
    ECellClass parent_class;

    /* Virtual function for subclasses to override. */
    gint        (*popup)        (ECellPopup *ecp,
                         GdkEvent *event,
                         gint row,
                         gint view_col);
};

GType       e_cell_popup_get_type       (void) G_GNUC_CONST;
ECell *     e_cell_popup_new        (void);
ECell *     e_cell_popup_get_child      (ECellPopup *ecp);
void        e_cell_popup_set_child      (ECellPopup *ecp,
                         ECell *child);
void        e_cell_popup_set_shown      (ECellPopup *ecp,
                         gboolean shown);
void        e_cell_popup_queue_cell_redraw  (ECellPopup *ecp);

G_END_DECLS

#endif /* _E_CELL_POPUP_H_ */