145 lines
3.9 KiB
C++
145 lines
3.9 KiB
C++
// ------------------------------------------------------------------------
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// audioio-typeselect.cpp: A proxy class for overriding default keyword
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// and filename associations.
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// Copyright (C) 2001,2002,2008,2009 Kai Vehmanen
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//
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// Attributes:
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// eca-style-version: 3
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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// ------------------------------------------------------------------------
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#include "eca-logger.h"
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#include "eca-object-factory.h"
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#include "audioio-null.h"
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#include "audioio-typeselect.h"
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/**
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* Constructor.
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*/
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AUDIO_IO_TYPESELECT::AUDIO_IO_TYPESELECT (void)
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{
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// ECA_LOG_MSG(ECA_LOGGER::user_objects, "constructor " + label() + ".");
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init_rep = false;
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}
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/**
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* Destructor.
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*/
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AUDIO_IO_TYPESELECT::~AUDIO_IO_TYPESELECT (void)
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{
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// ECA_LOG_MSG(ECA_LOGGER::user_objects, "destructor " + label() + ".");
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}
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AUDIO_IO_TYPESELECT* AUDIO_IO_TYPESELECT::clone(void) const
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{
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AUDIO_IO_TYPESELECT* target = new AUDIO_IO_TYPESELECT();
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for(int n = 0; n < number_of_params(); n++) {
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target->set_parameter(n + 1, get_parameter(n + 1));
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}
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return target;
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}
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void AUDIO_IO_TYPESELECT::open(void) throw(AUDIO_IO::SETUP_ERROR&)
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{
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ECA_LOG_MSG(ECA_LOGGER::user_objects, "open " + label() + ".");
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if (init_rep != true) {
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AUDIO_IO* tmp = 0;
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const string& objname =
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child_params_as_string(2, ¶ms_rep);
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tmp =
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ECA_OBJECT_FACTORY::create_audio_object(objname);
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if (tmp == 0)
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throw(SETUP_ERROR(SETUP_ERROR::io_mode, "AUDIOIO-TYPESELECT: unable to open child object '" + objname + "'"));
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set_child(tmp);
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int numparams = child()->number_of_params();
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for(int n = 0; n < numparams; n++) {
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child()->set_parameter(n + 1, get_parameter(n + 3));
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if (child()->variable_params())
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numparams = child()->number_of_params();
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}
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init_rep = true; /* must be set after dyn. parameters */
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}
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pre_child_open();
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child()->open();
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post_child_open();
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/* if child changed the format during open;
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* fetch the changes */
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if (child()->locked_audio_format() == true) {
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set_audio_format(child()->audio_format());
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}
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set_label(child()->label());
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set_length_in_samples(child()->length_in_samples());
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AUDIO_IO_PROXY::open();
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}
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void AUDIO_IO_TYPESELECT::close(void)
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{
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if (child()->is_open() == true) child()->close();
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AUDIO_IO_PROXY::close();
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}
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string AUDIO_IO_TYPESELECT::parameter_names(void) const
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{
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return string("typeselect,format,") + child()->parameter_names();
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}
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void AUDIO_IO_TYPESELECT::set_parameter(int param, string value)
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{
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ECA_LOG_MSG(ECA_LOGGER::user_objects,
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"set_parameter "
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+ label() + ".");
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if (param > static_cast<int>(params_rep.size())) params_rep.resize(param);
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if (param > 0) {
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params_rep[param - 1] = value;
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}
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if (param > 2 &&
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init_rep == true) {
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child()->set_parameter(param - 2, value);
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}
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}
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string AUDIO_IO_TYPESELECT::get_parameter(int param) const
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{
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ECA_LOG_MSG(ECA_LOGGER::user_objects,
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"get_parameter "
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+ label() + ".");
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if (param > 0 && param < static_cast<int>(params_rep.size()) + 1) {
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if (param > 2 &&
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init_rep == true) {
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params_rep[param - 1] = child()->get_parameter(param - 2);
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}
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return params_rep[param - 1];
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}
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return "";
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}
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