path: root/a11y/e-table/gal-a11y-e-cell.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * Authors: 
 *   Christopher James Lahey <clahey@ximian.com>
 *
 * Copyright (C) 2002 Ximian, Inc.
 */

#include <config.h>
#include "gal-a11y-e-cell.h"
#include "gal-a11y-util.h"
#include <atk/atkobject.h>
#include <atk/atkcomponent.h>

#define CS_CLASS(a11y) (G_TYPE_INSTANCE_GET_CLASS ((a11y), C_TYPE_STREAM, GalA11yECellClass))
static GObjectClass *parent_class;
#define PARENT_TYPE (atk_object_get_type ())


#if 0
static void
unref_item (gpointer user_data, GObject *obj_loc)
{
    GalA11yECell *a11y = GAL_A11Y_E_CELL (user_data);
    a11y->item = NULL;
    g_object_unref (a11y);
}

static void
unref_cell (gpointer user_data, GObject *obj_loc)
{
    GalA11yECell *a11y = GAL_A11Y_E_CELL (user_data);
    a11y->cell_view = NULL;
    g_object_unref (a11y);
}
#endif 

static void
eti_dispose (GObject *object)
{
    GalA11yECell *a11y = GAL_A11Y_E_CELL (object);

#if 0
    if (a11y->item)
        g_object_unref (G_OBJECT (a11y->item));  /*, unref_item, a11y); */
    if (a11y->cell_view)
        g_object_unref (G_OBJECT (a11y->cell_view)); /*, unref_cell, a11y); */
    if (a11y->parent)
        g_object_unref (a11y->parent);
#endif
    a11y->item = NULL;
    a11y->cell_view = NULL;
    a11y->parent = NULL;
    a11y->model_col = -1;
    a11y->view_col = -1;
    a11y->row = -1;

    if (parent_class->dispose)
        parent_class->dispose (object);
}

/* Static functions */
static AtkObject*
eti_get_parent (AtkObject *accessible)
{
    GalA11yECell *a11y = GAL_A11Y_E_CELL (accessible);
    return a11y->parent;
}

static gint
eti_get_index_in_parent (AtkObject *accessible)
{
    GalA11yECell *a11y = GAL_A11Y_E_CELL (accessible);

    return a11y->row * a11y->item->cols + a11y->view_col;
}


/* Component IFace */
static void
eti_get_extents (AtkComponent *component,
        gint *x,
        gint *y,
        gint *width,
        gint *height,
        AtkCoordType coord_type)
{
    GalA11yECell *a11y = GAL_A11Y_E_CELL (component);
    int row;
    int col;
    int xval;
    int yval;

    row = a11y->row;
    col = a11y->view_col;


    e_table_item_get_cell_geometry (a11y->item,
                    &row, 
                    &col,
                    &xval,
                    &yval,
                    width,
                    height);

    atk_component_get_position (ATK_COMPONENT (a11y->parent),
                    x, y, coord_type);
    if (x && *x != G_MININT)
        *x += xval;
    if (y && *y != G_MININT)
        *y += yval;
}

/* Table IFace */

static void
eti_atk_component_iface_init (AtkComponentIface *iface)
{
    iface->get_extents = eti_get_extents;
}

static void
eti_class_init (GalA11yECellClass *klass)
{
    AtkObjectClass *atk_object_class = ATK_OBJECT_CLASS (klass);
    GObjectClass *object_class = G_OBJECT_CLASS (klass);

    parent_class                          = g_type_class_ref (PARENT_TYPE);

    object_class->dispose                 = eti_dispose;

    atk_object_class->get_parent          = eti_get_parent;
    atk_object_class->get_index_in_parent = eti_get_index_in_parent;
}

static void
eti_init (GalA11yECell *a11y)
{
    a11y->item = NULL;
    a11y->cell_view = NULL;
    a11y->parent = NULL;
    a11y->model_col = -1;
    a11y->view_col = -1;
    a11y->row = -1;
}

/**
 * gal_a11y_e_cell_get_type:
 * @void: 
 * 
 * Registers the &GalA11yECell class if necessary, and returns the type ID
 * associated to it.
 * 
 * Return value: The type ID of the &GalA11yECell class.
 **/
GType
gal_a11y_e_cell_get_type (void)
{
    static GType type = 0;

    if (!type) {
        GTypeInfo info = {
            sizeof (GalA11yECellClass),
            (GBaseInitFunc) NULL,
            (GBaseFinalizeFunc) NULL,
            (GClassInitFunc) eti_class_init,
            (GClassFinalizeFunc) NULL,
            NULL, /* class_data */
            sizeof (GalA11yECell),
            0,
            (GInstanceInitFunc) eti_init,
            NULL /* value_cell */
        };

        static const GInterfaceInfo atk_component_info = {
            (GInterfaceInitFunc) eti_atk_component_iface_init,
            (GInterfaceFinalizeFunc) NULL,
            NULL
        };

        type = g_type_register_static (PARENT_TYPE, "GalA11yECell", &info, 0);
        g_type_add_interface_static (type, ATK_TYPE_COMPONENT, &atk_component_info);
    }

    return type;
}
AtkObject *
gal_a11y_e_cell_new (ETableItem *item,
             ECellView  *cell_view,
             AtkObject  *parent,
             int         model_col,
             int         view_col,
             int         row)
{
    AtkObject *a11y;

    a11y = g_object_new (gal_a11y_e_cell_get_type (), NULL);

    gal_a11y_e_cell_construct (a11y,
                   item,
                   cell_view,
                   parent,
                   model_col,
                   view_col,
                   row);
    return a11y;
}

void
gal_a11y_e_cell_construct (AtkObject  *object,
               ETableItem *item,
               ECellView  *cell_view,
               AtkObject  *parent,
               int         model_col,
               int         view_col,
               int         row)
{
    GalA11yECell *a11y = GAL_A11Y_E_CELL (object);
    a11y->item      = item;
    a11y->cell_view = cell_view;
    a11y->parent    = parent;
    a11y->model_col = model_col;
    a11y->view_col  = view_col;
    a11y->row       = row;

#if 0
    if (parent)
        g_object_ref (parent);

    if (item)
        g_object_ref (G_OBJECT (item)); /*,
                          unref_item,
                          a11y);*/
    if (cell_view)
        g_object_ref (G_OBJECT (cell_view)); /*,
                          unref_cell,
                          a11y);*/
#endif
}