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/**
* Navit, a modular navigation system.
* Copyright (C) 2005-2008 Navit Team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* 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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <glib.h>
#include <string.h>
#include "debug.h"
#include "item.h"
#include "speech.h"
#include "plugin.h"
#include "xmlconfig.h"
struct speech {
NAVIT_OBJECT;
struct speech_priv *priv;
struct speech_methods meth;
};
struct speech *
speech_new(struct attr *parent, struct attr **attrs)
{
struct speech *this_;
struct speech_priv *(*speech_new)(struct speech_methods *meth, struct attr **attrs, struct attr *parent);
struct attr *attr;
attr=attr_search(attrs, NULL, attr_type);
if (! attr) {
dbg(lvl_error,"type missing\n");
return NULL;
}
dbg(lvl_debug,"type='%s'\n", attr->u.str);
speech_new=plugin_get_speech_type(attr->u.str);
dbg(lvl_debug,"new=%p\n", speech_new);
if (! speech_new) {
dbg(lvl_error,"wrong type '%s'\n", attr->u.str);
return NULL;
}
this_=(struct speech *)navit_object_new(attrs, &speech_func, sizeof(struct speech));
this_->priv=speech_new(&this_->meth, this_->attrs, parent);
dbg(lvl_debug, "say=%p\n", this_->meth.say);
dbg(lvl_debug,"priv=%p\n", this_->priv);
if (! this_->priv) {
speech_destroy(this_);
return NULL;
}
dbg(lvl_debug,"return %p\n", this_);
return this_;
}
void
speech_destroy(struct speech *this_)
{
if (this_->priv)
this_->meth.destroy(this_->priv);
navit_object_destroy((struct navit_object *)this_);
}
int
speech_say(struct speech *this_, const char *text)
{
dbg(lvl_debug, "this_=%p text='%s' calling %p\n", this_, text, this_->meth.say);
return (this_->meth.say)(this_->priv, text);
}
struct attr active=ATTR_INT(active, 1);
struct attr *speech_default_attrs[]={
&active,
NULL,
};
/**
* @brief Gets an attribute from a speech plugin
*
* @param this_ The speech plugin the attribute should be read from
* @param type The type of the attribute to be read
* @param attr Pointer to an attrib-structure where the attribute should be written to
* @param iter (NOT IMPLEMENTED) Used to iterate through all attributes of a type. Set this to NULL to get the first attribute, set this to an attr_iter to get the next attribute
* @return True if the attribute type was found, false if not
*/
int
speech_get_attr(struct speech *this_, enum attr_type type, struct attr *attr, struct attr_iter *iter)
{
return attr_generic_get_attr(this_->attrs, speech_default_attrs, type, attr, iter);
}
/**
* @brief Tries to estimate how long it will take to speak a certain string
*
* This function tries to estimate how long it will take to speak a certain string
* passed in str. It relies on the "characters per second"-value passed from the
* configuration.
*
* @param this_ The speech whose speed should be used
* @param str The string that should be estimated
* @return Time in tenth of seconds or -1 on error
*/
int
speech_estimate_duration(struct speech *this_, char *str)
{
int count;
struct attr cps_attr;
if (!speech_get_attr(this_,attr_cps,&cps_attr,NULL)) {
return -1;
}
count = strlen(str);
return (count * 10) / cps_attr.u.num;
}
/**
* @brief Sets an attribute from an speech plugin
*
* This sets an attribute of a speech plugin, overwriting an attribute of the same type if it
* already exists. This function also calls all the callbacks that are registred
* to be called when attributes change.
*
* @param this_ The speech plugin to set the attribute of
* @param attr The attribute to set
* @return True if the attr could be set, false otherwise
*/
int
speech_set_attr(struct speech *this_, struct attr *attr)
{
this_->attrs=attr_generic_set_attr(this_->attrs, attr);
//callback_list_call_attr_2(this_->attr_cbl, attr->type, this_, attr);
return 1;
}
struct object_func speech_func = {
attr_speech,
(object_func_new)speech_new,
(object_func_get_attr)speech_get_attr,
(object_func_iter_new)navit_object_attr_iter_new,
(object_func_iter_destroy)navit_object_attr_iter_destroy,
(object_func_set_attr)speech_set_attr,
(object_func_add_attr)navit_object_add_attr,
(object_func_remove_attr)navit_object_remove_attr,
(object_func_init)NULL,
(object_func_destroy)speech_destroy,
(object_func_dup)NULL,
(object_func_ref)navit_object_ref,
(object_func_unref)navit_object_unref,
};
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