/*
 *
 * 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:
 *		Chris Lahey <clahey@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#include <config.h>

#include <gtk/gtk.h>
#include <libgnomecanvas/gnome-canvas-rect-ellipse.h>

#include <glib/gi18n.h>
#include "e-util/e-util.h"
#include "misc/e-canvas.h"

#include "e-table-item.h"
#include "e-table-group-leaf.h"
#include "e-table-sorted.h"
#include "e-table-sorted-variable.h"

/* workaround for avoiding APi breakage */
#define etgl_get_type e_table_group_leaf_get_type
G_DEFINE_TYPE (ETableGroupLeaf, etgl, E_TABLE_GROUP_TYPE)

/* The arguments we take */
enum {
	PROP_0,
	PROP_HEIGHT,
	PROP_WIDTH,
	PROP_MINIMUM_WIDTH,
	PROP_FROZEN,
	PROP_TABLE_ALTERNATING_ROW_COLORS,
	PROP_TABLE_HORIZONTAL_DRAW_GRID,
	PROP_TABLE_VERTICAL_DRAW_GRID,
	PROP_TABLE_DRAW_FOCUS,
	PROP_CURSOR_MODE,
	PROP_LENGTH_THRESHOLD,
	PROP_SELECTION_MODEL,
	PROP_UNIFORM_ROW_HEIGHT
};

static void
etgl_dispose (GObject *object)
{
	ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF(object);

	if (etgl->ets) {
		g_object_unref (etgl->ets);
		etgl->ets = NULL;
	}

	if (etgl->item) {
		if (etgl->etgl_cursor_change_id != 0)
			g_signal_handler_disconnect (etgl->item,
						     etgl->etgl_cursor_change_id);
		if (etgl->etgl_cursor_activated_id != 0)
			g_signal_handler_disconnect (etgl->item,
						     etgl->etgl_cursor_activated_id);
		if (etgl->etgl_double_click_id != 0)
			g_signal_handler_disconnect (etgl->item,
						     etgl->etgl_double_click_id);
		if (etgl->etgl_right_click_id != 0)
			g_signal_handler_disconnect (etgl->item,
						     etgl->etgl_right_click_id);
		if (etgl->etgl_click_id != 0)
			g_signal_handler_disconnect (etgl->item,
						     etgl->etgl_click_id);
		if (etgl->etgl_key_press_id != 0)
			g_signal_handler_disconnect (etgl->item,
						     etgl->etgl_key_press_id);
		if (etgl->etgl_start_drag_id != 0)
			g_signal_handler_disconnect (etgl->item,
						     etgl->etgl_start_drag_id);

		etgl->etgl_cursor_change_id = 0;
		etgl->etgl_cursor_activated_id = 0;
		etgl->etgl_double_click_id = 0;
		etgl->etgl_right_click_id = 0;
		etgl->etgl_click_id = 0;
		etgl->etgl_key_press_id = 0;
		etgl->etgl_start_drag_id = 0;

		gtk_object_destroy (GTK_OBJECT(etgl->item));
		etgl->item = NULL;
	}

	if (etgl->selection_model) {
		g_object_unref (etgl->selection_model);
		etgl->selection_model = NULL;
	}

	if (G_OBJECT_CLASS (etgl_parent_class)->dispose)
		G_OBJECT_CLASS (etgl_parent_class)->dispose (object);
}

static void
e_table_group_leaf_construct (GnomeCanvasGroup *parent,
			      ETableGroupLeaf  *etgl,
			      ETableHeader     *full_header,
			      ETableHeader     *header,
			      ETableModel      *model,
			      ETableSortInfo   *sort_info)
{
	etgl->is_grouped = e_table_sort_info_grouping_get_count(sort_info) > 0 ? TRUE : FALSE;

	if (etgl->is_grouped)
		etgl->ets = E_TABLE_SUBSET(e_table_sorted_variable_new (model,
									full_header,
									sort_info));
	else
		etgl->ets = E_TABLE_SUBSET(e_table_sorted_new (model,
							       full_header,
							       sort_info));

	e_table_group_construct (parent, E_TABLE_GROUP (etgl), full_header, header, model);
}

/**
 * e_table_group_leaf_new
 * @parent: The %GnomeCanvasGroup to create a child of.
 * @full_header: The full header of the %ETable.
 * @header: The current header of the %ETable.
 * @model: The %ETableModel of the %ETable.
 * @sort_info: The %ETableSortInfo of the %ETable.
 *
 * %ETableGroupLeaf is an %ETableGroup which simply contains an
 * %ETableItem.
 *
 * Returns: The new %ETableGroupLeaf.
 */
ETableGroup *
e_table_group_leaf_new       (GnomeCanvasGroup *parent,
			      ETableHeader     *full_header,
			      ETableHeader     *header,
			      ETableModel      *model,
			      ETableSortInfo   *sort_info)
{
	ETableGroupLeaf *etgl;

	g_return_val_if_fail (parent != NULL, NULL);

	etgl = g_object_new (E_TABLE_GROUP_LEAF_TYPE, NULL);

	e_table_group_leaf_construct (parent, etgl, full_header,
				      header, model, sort_info);
	return E_TABLE_GROUP (etgl);
}

static void
etgl_cursor_change (GtkObject *object, gint row, ETableGroupLeaf *etgl)
{
	if (row < E_TABLE_SUBSET(etgl->ets)->n_map)
		e_table_group_cursor_change (E_TABLE_GROUP(etgl),
					     E_TABLE_SUBSET(etgl->ets)->map_table[row]);
}

static void
etgl_cursor_activated (GtkObject *object, gint view_row, ETableGroupLeaf *etgl)
{
	if (view_row < E_TABLE_SUBSET(etgl->ets)->n_map)
		e_table_group_cursor_activated (E_TABLE_GROUP(etgl),
						E_TABLE_SUBSET(etgl->ets)->map_table[view_row]);
}

static void
etgl_double_click (GtkObject *object, gint model_row, gint model_col, GdkEvent *event,
		   ETableGroupLeaf *etgl)
{
	e_table_group_double_click (E_TABLE_GROUP(etgl), model_row, model_col, event);
}

static gint
etgl_key_press (GtkObject *object, gint row, gint col, GdkEvent *event, ETableGroupLeaf *etgl)
{
	if (row < E_TABLE_SUBSET(etgl->ets)->n_map && row >= 0)
		return e_table_group_key_press (E_TABLE_GROUP(etgl),
						E_TABLE_SUBSET(etgl->ets)->map_table[row],
						col,
						event);
	else
		return 0;
}

static gint
etgl_start_drag (GtkObject *object, gint model_row, gint model_col, GdkEvent *event,
		 ETableGroupLeaf *etgl)
{
	return e_table_group_start_drag (E_TABLE_GROUP(etgl), model_row, model_col, event);
}

static gint
etgl_right_click (GtkObject *object, gint view_row, gint model_col, GdkEvent *event,
		  ETableGroupLeaf *etgl)
{
	if (view_row < E_TABLE_SUBSET(etgl->ets)->n_map)
		return e_table_group_right_click (E_TABLE_GROUP(etgl),
						  E_TABLE_SUBSET(etgl->ets)->map_table[view_row],
						  model_col,
						  event);
	else
		return 0;
}

static gint
etgl_click (GtkObject *object, gint row, gint col, GdkEvent *event, ETableGroupLeaf *etgl)
{
	if (row < E_TABLE_SUBSET(etgl->ets)->n_map)
		return e_table_group_click (E_TABLE_GROUP(etgl),
					    E_TABLE_SUBSET(etgl->ets)->map_table[row],
					    col,
					    event);
	else
		return 0;
}

static void
etgl_reflow (GnomeCanvasItem *item, gint flags)
{
	ETableGroupLeaf *leaf = E_TABLE_GROUP_LEAF(item);

	g_object_get(leaf->item,
		     "height", &leaf->height,
		     NULL);
	g_object_get(leaf->item,
		     "width", &leaf->width,
		     NULL);

	e_canvas_item_request_parent_reflow (item);
}

static void
etgl_realize (GnomeCanvasItem *item)
{
	ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF(item);

	if (GNOME_CANVAS_ITEM_CLASS (etgl_parent_class)->realize)
		GNOME_CANVAS_ITEM_CLASS (etgl_parent_class)->realize (item);

	etgl->item = E_TABLE_ITEM(gnome_canvas_item_new (
		GNOME_CANVAS_GROUP(etgl),
		e_table_item_get_type (),
		"ETableHeader", E_TABLE_GROUP(etgl)->header,
		"ETableModel", etgl->ets,
		"alternating_row_colors", etgl->alternating_row_colors,
		"horizontal_draw_grid", etgl->horizontal_draw_grid,
		"vertical_draw_grid", etgl->vertical_draw_grid,
		"drawfocus", etgl->draw_focus,
		"cursor_mode", etgl->cursor_mode,
		"minimum_width", etgl->minimum_width,
		"length_threshold", etgl->length_threshold,
		"selection_model", etgl->selection_model,
		"uniform_row_height", etgl->uniform_row_height,
		NULL));

	etgl->etgl_cursor_change_id    = g_signal_connect (etgl->item,
							   "cursor_change",
							   G_CALLBACK(etgl_cursor_change),
							   etgl);
	etgl->etgl_cursor_activated_id = g_signal_connect (etgl->item,
							   "cursor_activated",
							   G_CALLBACK(etgl_cursor_activated),
							   etgl);
	etgl->etgl_double_click_id     = g_signal_connect (etgl->item,
							   "double_click",
							   G_CALLBACK(etgl_double_click),
							   etgl);

	etgl->etgl_right_click_id      = g_signal_connect (etgl->item,
							   "right_click",
							   G_CALLBACK(etgl_right_click),
							   etgl);
	etgl->etgl_click_id            = g_signal_connect (etgl->item,
							   "click",
							   G_CALLBACK(etgl_click),
							   etgl);
	etgl->etgl_key_press_id        = g_signal_connect (etgl->item,
							   "key_press",
							   G_CALLBACK(etgl_key_press),
							   etgl);
	etgl->etgl_start_drag_id       = g_signal_connect (etgl->item,
							   "start_drag",
							   G_CALLBACK(etgl_start_drag),
							   etgl);

	e_canvas_item_request_reflow(item);
}

static void
etgl_add (ETableGroup *etg, gint row)
{
	ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);

	if (E_IS_TABLE_SUBSET_VARIABLE(etgl->ets)) {
		e_table_subset_variable_add (E_TABLE_SUBSET_VARIABLE(etgl->ets), row);
	}
}

static void
etgl_add_array (ETableGroup *etg, const gint *array, gint count)
{
	ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);

	if (E_IS_TABLE_SUBSET_VARIABLE(etgl->ets)) {
		e_table_subset_variable_add_array (E_TABLE_SUBSET_VARIABLE(etgl->ets), array, count);
	}
}

static void
etgl_add_all (ETableGroup *etg)
{
	ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);

	if (E_IS_TABLE_SUBSET_VARIABLE(etgl->ets)) {
		e_table_subset_variable_add_all (E_TABLE_SUBSET_VARIABLE(etgl->ets));
	}
}

static gboolean
etgl_remove (ETableGroup *etg, gint row)
{
	ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);

	if (E_IS_TABLE_SUBSET_VARIABLE(etgl->ets)) {
		return e_table_subset_variable_remove (E_TABLE_SUBSET_VARIABLE(etgl->ets), row);
	}
	return FALSE;
}

static void
etgl_increment (ETableGroup *etg, gint position, gint amount)
{
	ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);

	if (E_IS_TABLE_SUBSET_VARIABLE(etgl->ets)) {
		e_table_subset_variable_increment (E_TABLE_SUBSET_VARIABLE(etgl->ets), position, amount);
	}
}

static void
etgl_decrement (ETableGroup *etg, gint position, gint amount)
{
	ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);

	if (E_IS_TABLE_SUBSET_VARIABLE(etgl->ets)) {
		e_table_subset_variable_decrement (E_TABLE_SUBSET_VARIABLE(etgl->ets), position, amount);
	}
}

static gint
etgl_row_count (ETableGroup *etg)
{
	ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);

	return e_table_model_row_count(E_TABLE_MODEL(etgl->ets));
}

static void
etgl_set_focus (ETableGroup *etg, EFocus direction, gint view_col)
{
	ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);

	if (direction == E_FOCUS_END) {
		e_table_item_set_cursor (etgl->item, view_col, e_table_model_row_count(E_TABLE_MODEL(etgl->ets)) - 1);
	} else {
		e_table_item_set_cursor (etgl->item, view_col, 0);
	}
}

static gint
etgl_get_focus_column (ETableGroup *etg)
{
	ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);

	return e_table_item_get_focused_column (etgl->item);
}

static EPrintable *
etgl_get_printable (ETableGroup *etg)
{
	ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);

	return e_table_item_get_printable (etgl->item);
}

static void
etgl_compute_location (ETableGroup *etg, gint *x, gint *y, gint *row, gint *col)
{
	ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);

	e_table_item_compute_location (etgl->item, x, y, row, col);
}

static void
etgl_get_mouse_over (ETableGroup *etg, gint *row, gint *col)
{
	ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);

	if (etgl->item && etgl->item->motion_row > -1 && etgl->item->motion_col > -1) {
		if (row)
			*row = etgl->item->motion_row;
		if (col)
			*col = etgl->item->motion_col;
	}
}

static void
etgl_get_cell_geometry (ETableGroup *etg, gint *row, gint *col, gint *x, gint *y, gint *width, gint *height)
{
	ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);

	e_table_item_get_cell_geometry (etgl->item, row, col, x, y, width, height);
}

static void
etgl_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
	ETableGroup *etg = E_TABLE_GROUP (object);
	ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (object);

	switch (prop_id) {
	case PROP_FROZEN:
		etg->frozen = g_value_get_boolean (value);
		break;
	case PROP_MINIMUM_WIDTH:
	case PROP_WIDTH:
		etgl->minimum_width = g_value_get_double (value);
		if (etgl->item) {
			gnome_canvas_item_set (GNOME_CANVAS_ITEM(etgl->item),
					       "minimum_width", etgl->minimum_width,
					       NULL);
		}
		break;
	case PROP_LENGTH_THRESHOLD:
		etgl->length_threshold = g_value_get_int (value);
		if (etgl->item) {
			gnome_canvas_item_set (GNOME_CANVAS_ITEM(etgl->item),
					       "length_threshold", etgl->length_threshold,
					       NULL);
		}
		break;
	case PROP_SELECTION_MODEL:
		if (etgl->selection_model)
			g_object_unref(etgl->selection_model);
		etgl->selection_model = E_SELECTION_MODEL(g_value_get_object (value));
		if (etgl->selection_model) {
			g_object_ref(etgl->selection_model);
		}
		if (etgl->item) {
			gnome_canvas_item_set (GNOME_CANVAS_ITEM(etgl->item),
					       "selection_model", etgl->selection_model,
					       NULL);
		}
		break;

	case PROP_UNIFORM_ROW_HEIGHT:
		etgl->uniform_row_height = g_value_get_boolean (value);
		if (etgl->item) {
			gnome_canvas_item_set (GNOME_CANVAS_ITEM(etgl->item),
					       "uniform_row_height", etgl->uniform_row_height,
					       NULL);
		}
		break;

	case PROP_TABLE_ALTERNATING_ROW_COLORS:
		etgl->alternating_row_colors = g_value_get_boolean (value);
		if (etgl->item) {
			gnome_canvas_item_set (GNOME_CANVAS_ITEM(etgl->item),
					       "alternating_row_colors", etgl->alternating_row_colors,
					       NULL);
		}
		break;

	case PROP_TABLE_HORIZONTAL_DRAW_GRID:
		etgl->horizontal_draw_grid = g_value_get_boolean (value);
		if (etgl->item) {
			gnome_canvas_item_set (GNOME_CANVAS_ITEM(etgl->item),
					       "horizontal_draw_grid", etgl->horizontal_draw_grid,
					       NULL);
		}
		break;

	case PROP_TABLE_VERTICAL_DRAW_GRID:
		etgl->vertical_draw_grid = g_value_get_boolean (value);
		if (etgl->item) {
			gnome_canvas_item_set (GNOME_CANVAS_ITEM(etgl->item),
					       "vertical_draw_grid", etgl->vertical_draw_grid,
					       NULL);
		}
		break;

	case PROP_TABLE_DRAW_FOCUS:
		etgl->draw_focus = g_value_get_boolean (value);
		if (etgl->item) {
			gnome_canvas_item_set (GNOME_CANVAS_ITEM(etgl->item),
					       "drawfocus", etgl->draw_focus,
					       NULL);
		}
		break;

	case PROP_CURSOR_MODE:
		etgl->cursor_mode = g_value_get_int (value);
		if (etgl->item) {
			gnome_canvas_item_set (GNOME_CANVAS_ITEM(etgl->item),
					       "cursor_mode", etgl->cursor_mode,
					       NULL);
		}
		break;
	default:
		break;
	}
}

static void
etgl_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
	ETableGroup *etg = E_TABLE_GROUP (object);
	ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (object);

	switch (prop_id) {
	case PROP_FROZEN:
		g_value_set_boolean (value, etg->frozen);
		break;
	case PROP_HEIGHT:
		g_value_set_double (value, etgl->height);
		break;
	case PROP_WIDTH:
		g_value_set_double (value, etgl->width);
		break;
	case PROP_MINIMUM_WIDTH:
		g_value_set_double (value, etgl->minimum_width);
		break;
	case PROP_UNIFORM_ROW_HEIGHT:
		g_value_set_boolean (value, etgl->uniform_row_height);
	default:
		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
		break;
	}
}

static void
etgl_class_init (ETableGroupLeafClass *klass)
{
	GnomeCanvasItemClass *item_class = GNOME_CANVAS_ITEM_CLASS (klass);
	ETableGroupClass *e_group_class = E_TABLE_GROUP_CLASS (klass);
	GObjectClass *object_class = G_OBJECT_CLASS (klass);

	object_class->dispose = etgl_dispose;
	object_class->set_property = etgl_set_property;
	object_class->get_property = etgl_get_property;

	item_class->realize = etgl_realize;

	e_group_class->add = etgl_add;
	e_group_class->add_array = etgl_add_array;
	e_group_class->add_all = etgl_add_all;
	e_group_class->remove = etgl_remove;
	e_group_class->increment  = etgl_increment;
	e_group_class->decrement  = etgl_decrement;
	e_group_class->row_count  = etgl_row_count;
	e_group_class->set_focus  = etgl_set_focus;
	e_group_class->get_focus_column = etgl_get_focus_column;
	e_group_class->get_printable = etgl_get_printable;
	e_group_class->compute_location = etgl_compute_location;
	e_group_class->get_mouse_over = etgl_get_mouse_over;
	e_group_class->get_cell_geometry = etgl_get_cell_geometry;

	g_object_class_install_property (object_class, PROP_TABLE_ALTERNATING_ROW_COLORS,
					 g_param_spec_boolean ("alternating_row_colors",
							       _( "Alternating Row Colors" ),
							       _( "Alternating Row Colors" ),
							       FALSE,
							       G_PARAM_WRITABLE));

	g_object_class_install_property (object_class, PROP_TABLE_HORIZONTAL_DRAW_GRID,
					 g_param_spec_boolean ("horizontal_draw_grid",
							       _( "Horizontal Draw Grid" ),
							       _( "Horizontal Draw Grid" ),
							       FALSE,
							       G_PARAM_WRITABLE));

	g_object_class_install_property (object_class, PROP_TABLE_VERTICAL_DRAW_GRID,
					 g_param_spec_boolean ("vertical_draw_grid",
							       _( "Vertical Draw Grid" ),
							       _( "Vertical Draw Grid" ),
							       FALSE,
							       G_PARAM_WRITABLE));

	g_object_class_install_property (object_class, PROP_TABLE_DRAW_FOCUS,
					 g_param_spec_boolean ("drawfocus",
							       _( "Draw focus" ),
							       _( "Draw focus" ),
							       FALSE,
							       G_PARAM_WRITABLE));

	g_object_class_install_property (object_class, PROP_CURSOR_MODE,
					 g_param_spec_int ("cursor_mode",
							   _( "Cursor mode" ),
							   _( "Cursor mode" ),
							   E_CURSOR_LINE, E_CURSOR_SPREADSHEET, E_CURSOR_LINE,
							   G_PARAM_WRITABLE));

	g_object_class_install_property (object_class, PROP_LENGTH_THRESHOLD,
					 g_param_spec_int ("length_threshold",
							   _( "Length Threshold" ),
							   _( "Length Threshold" ),
							   -1, G_MAXINT, 0,
							   G_PARAM_WRITABLE));

	g_object_class_install_property (object_class, PROP_SELECTION_MODEL,
					 g_param_spec_object ("selection_model",
							      _( "Selection model" ),
							      _( "Selection model" ),
							      E_SELECTION_MODEL_TYPE,
							      G_PARAM_WRITABLE));

	g_object_class_install_property (object_class, PROP_HEIGHT,
					 g_param_spec_double ("height",
							      _( "Height" ),
							      _( "Height" ),
							      0.0, G_MAXDOUBLE, 0.0,
							      G_PARAM_READABLE));

	g_object_class_install_property (object_class, PROP_WIDTH,
					 g_param_spec_double ("width",
							      _( "Width" ),
							      _( "Width" ),
							      0.0, G_MAXDOUBLE, 0.0,
							      G_PARAM_READWRITE));

	g_object_class_install_property (object_class, PROP_MINIMUM_WIDTH,
					 g_param_spec_double ("minimum_width",
							      _( "Minimum width" ),
							      _( "Minimum Width" ),
							      0.0, G_MAXDOUBLE, 0.0,
							      G_PARAM_READWRITE));

	g_object_class_install_property (object_class, PROP_FROZEN,
					 g_param_spec_boolean ("frozen",
							       _( "Frozen" ),
							       _( "Frozen" ),
							       FALSE,
							       G_PARAM_READWRITE));

	g_object_class_install_property (object_class, PROP_UNIFORM_ROW_HEIGHT,
					 g_param_spec_boolean ("uniform_row_height",
							       _( "Uniform row height" ),
							       _( "Uniform row height" ),
							       FALSE,
							       G_PARAM_READWRITE));
}

static void
etgl_init (ETableGroupLeaf *etgl)
{
	etgl->width = 1;
	etgl->height = 1;
	etgl->minimum_width = 0;

	etgl->ets = NULL;
	etgl->item = NULL;

	etgl->etgl_cursor_change_id = 0;
	etgl->etgl_cursor_activated_id = 0;
	etgl->etgl_double_click_id = 0;
	etgl->etgl_right_click_id = 0;
	etgl->etgl_click_id = 0;
	etgl->etgl_key_press_id = 0;
	etgl->etgl_start_drag_id = 0;

	etgl->alternating_row_colors = 1;
	etgl->horizontal_draw_grid = 1;
	etgl->vertical_draw_grid = 1;
	etgl->draw_focus = 1;
	etgl->cursor_mode = E_CURSOR_SIMPLE;
	etgl->length_threshold = -1;

	etgl->selection_model = NULL;
	etgl->uniform_row_height = FALSE;

	e_canvas_item_set_reflow_callback (GNOME_CANVAS_ITEM (etgl), etgl_reflow);
}