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gnucash/lib/goffice/drawing/god-shape.c

270 lines
6.3 KiB

/* vim: set sw=8: -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* god-shape.c: MS Office Graphic Object support
*
* Copyright (C) 2000-2002
* Jody Goldberg (jody@gnome.org)
* Michael Meeks (mmeeks@gnu.org)
* Christopher James Lahey <clahey@ximian.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#include <goffice/goffice-config.h>
#include "drawing/god-shape.h"
#include <gsf/gsf-impl-utils.h>
#include <string.h>
static GObjectClass *parent_class;
struct GodShapePrivate_ {
GodShape *parent;
GPtrArray *children; /* Of type GodShape. */
GodPropertyTable *prop_table;
GodAnchor *anchor;
GodTextModel *text_model;
};
static GPtrArray*
g_ptr_array_insert_val (GPtrArray *array,
guint index,
gpointer data)
{
g_ptr_array_add (array, data);
memmove (array->pdata + index + 1,
array->pdata + index,
array->len - index - 1);
g_ptr_array_index (array, index) = data;
return array;
}
static void
ensure_prop_table (GodShape *shape)
{
if (shape->priv->prop_table == NULL)
shape->priv->prop_table =
god_property_table_new();
}
static void
ensure_text_model (GodShape *shape)
{
if (shape->priv->text_model == NULL)
shape->priv->text_model =
god_text_model_new();
}
GodShape *
god_shape_new (void)
{
GodShape *shape;
shape = g_object_new (GOD_SHAPE_TYPE, NULL);
return shape;
}
void
god_shape_append_child (GodShape *parent,
GodShape *child)
{
god_shape_insert_child (parent, child, -1);
}
/* pos can be -1 to represent the end. */
void
god_shape_insert_child (GodShape *parent,
GodShape *child,
int pos)
{
g_return_if_fail (parent != NULL);
g_return_if_fail (child != NULL);
g_return_if_fail (child->priv->parent == NULL);
if (pos == -1)
pos = parent->priv->children->len;
g_ptr_array_insert_val (parent->priv->children, pos, child);
g_object_ref (child);
child->priv->parent = parent;
}
/* pos must be an actual position */
void
god_shape_delete_child (GodShape *parent,
int pos)
{
GodShape *child = g_ptr_array_remove_index (parent->priv->children, pos);
g_object_unref (child);
}
/* old_pos must be an actual position. new_pos can be -1 to represent the end. */
void
god_shape_reorder_child (GodShape *parent,
int old_pos,
int new_pos)
{
GodShape *child = g_ptr_array_remove_index (parent->priv->children, old_pos);
child->priv->parent = NULL;
god_shape_insert_child (parent, child, new_pos);
g_object_unref (child);
}
int
god_shape_get_child_count (GodShape *parent)
{
return parent->priv->children->len;
}
GodShape *
god_shape_get_child (GodShape *parent,
int pos)
{
GodShape *child;
g_return_val_if_fail (pos < god_shape_get_child_count (parent), NULL);
child = g_ptr_array_index (parent->priv->children, pos);
g_return_val_if_fail (child, NULL);
g_object_ref (child);
return child;
}
GodPropertyTable *
god_shape_get_prop_table (GodShape *shape)
{
ensure_prop_table (shape);
g_object_ref (shape->priv->prop_table);
return shape->priv->prop_table;
}
void
god_shape_set_prop_table (GodShape *shape,
GodPropertyTable *prop_table)
{
if (shape->priv->prop_table)
g_object_unref (shape->priv->prop_table);
shape->priv->prop_table = prop_table;
if (shape->priv->prop_table)
g_object_ref (shape->priv->prop_table);
}
GodAnchor *
god_shape_get_anchor (GodShape *shape)
{
if (shape->priv->anchor)
g_object_ref (shape->priv->anchor);
return shape->priv->anchor;
}
void
god_shape_set_anchor (GodShape *shape,
GodAnchor *anchor)
{
if (shape->priv->anchor)
g_object_unref (shape->priv->anchor);
shape->priv->anchor = anchor;
if (shape->priv->anchor)
g_object_ref (shape->priv->anchor);
}
GodTextModel *
god_shape_get_text_model (GodShape *shape)
{
ensure_text_model (shape);
g_object_ref (shape->priv->text_model);
return shape->priv->text_model;
}
void
god_shape_set_text_model (GodShape *shape,
GodTextModel *text_model)
{
if (shape->priv->text_model)
g_object_unref (shape->priv->text_model);
shape->priv->text_model = text_model;
if (shape->priv->text_model)
g_object_ref (shape->priv->text_model);
}
const char *
god_shape_get_text (GodShape *shape)
{
if (shape->priv->text_model)
return god_text_model_get_text (shape->priv->text_model);
else
return NULL;
}
void
god_shape_set_text (GodShape *shape,
const char *text)
{
ensure_text_model (shape);
god_text_model_set_text (shape->priv->text_model, text);
}
static void
god_shape_init (GObject *object)
{
GodShape *shape = GOD_SHAPE (object);
shape->priv = g_new0 (GodShapePrivate, 1);
shape->priv->children = g_ptr_array_new ();
shape->priv->parent = NULL;
}
static void
god_shape_dispose (GObject *object)
{
GodShape *shape = GOD_SHAPE (object);
guint i;
if (shape->priv == NULL)
return;
for (i = 0; i < shape->priv->children->len; i++)
g_object_unref (g_ptr_array_index (shape->priv->children, i));
g_ptr_array_free (shape->priv->children, TRUE);
if (shape->priv->prop_table)
g_object_unref (shape->priv->prop_table);
if (shape->priv->anchor)
g_object_unref (shape->priv->anchor);
if (shape->priv->text_model)
g_object_unref (shape->priv->text_model);
g_free (shape->priv);
shape->priv = NULL;
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
god_shape_class_init (GodShapeClass *class)
{
GObjectClass *object_class;
object_class = (GObjectClass *) class;
parent_class = g_type_class_peek_parent (class);
object_class->dispose = god_shape_dispose;
}
GSF_CLASS (GodShape, god_shape,
god_shape_class_init, god_shape_init,
G_TYPE_OBJECT)