zynadd_dynparam_value_changed_callbacks.c

   1 /* -*- Mode: C ; c-basic-offset: 2 -*- */
   2 /*****************************************************************************
   3  *
   4  *   Copyright (C) 2006,2007,2008,2009 Nedko Arnaudov <nedko@arnaudov.name>
   5  *
   6  *   This program is free software; you can redistribute it and/or modify
   7  *   it under the terms of the GNU General Public License as published by
   8  *   the Free Software Foundation; version 2 of the License
   9  *
  10  *   This program is distributed in the hope that it will be useful,
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *   GNU General Public License for more details.
  14  *
  15  *   You should have received a copy of the GNU General Public License
  16  *   along with this program; if not, write to the Free Software
  17  *   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  *****************************************************************************/
  20
  21 #include <stdbool.h>
  22 #include <lv2.h>
  23
  24 #include "common.h"
  25 #include "list.h"
  26 #include "addsynth.h"
  27 #include "lv2dynparam/lv2dynparam.h"
  28 #include "lv2dynparam/plugin.h"
  29 #include "zynadd_internal.h"
  30 #include "zynadd_dynparam_value_changed_callbacks.h"
  31
  32 #define LOG_LEVEL LOG_LEVEL_ERROR
  33 #include "log.h"
  34
  35 #define parameter_ptr ((struct zynadd_parameter *)context)
  36
  37 bool
  38 zynadd_bool_parameter_changed(
  39   void * context,
  40   bool value)
  41 {
  42   bool current_value;
  43
  44   LOG_DEBUG("bool parameter \"%s\" changed to \"%s\"", parameter_ptr->name_ptr, value ? "true" : "false");
  45
  46   if (parameter_ptr->scope == LV2DYNPARAM_PARAMETER_SCOPE_TYPE_HIDE_OTHER ||
  47       parameter_ptr->scope == LV2DYNPARAM_PARAMETER_SCOPE_TYPE_SHOW_OTHER)
  48   {
  49     current_value = zyn_addsynth_get_bool_parameter(
  50       parameter_ptr->addsynth_component,
  51       parameter_ptr->addsynth_parameter);
  52
  53     if ((current_value && value) ||
  54         (!current_value && !value))
  55     {
  56       /* value not changed */
  57       return true;
  58     }
  59
  60     if ((parameter_ptr->scope == LV2DYNPARAM_PARAMETER_SCOPE_TYPE_HIDE_OTHER && value) ||
  61         (parameter_ptr->scope == LV2DYNPARAM_PARAMETER_SCOPE_TYPE_SHOW_OTHER && !value))
  62     {
  63       LOG_DEBUG("Removing parameter \"%s\" with semi scope", parameter_ptr->other_parameter->name_ptr);
  64
  65       /* enabling randomize -> remove panorama parameter */
  66       if (!lv2dynparam_plugin_param_remove(
  67             parameter_ptr->synth_ptr->dynparams,
  68             parameter_ptr->other_parameter->lv2parameter))
  69       {
  70         return false;
  71       }
  72     }
  73     else
  74     {
  75       LOG_DEBUG("Appearing parameter \"%s\" with semi scope", parameter_ptr->other_parameter->name_ptr);
  76
  77       if (!zynadd_appear_parameter(parameter_ptr->synth_ptr, parameter_ptr->other_parameter))
  78       {
  79         return false;
  80       }
  81     }
  82   }
  83
  84   zyn_addsynth_set_bool_parameter(
  85     parameter_ptr->addsynth_component,
  86     parameter_ptr->addsynth_parameter,
  87     value);
  88
  89   return true;
  90 }
  91
  92 bool
  93 zynadd_float_parameter_changed(
  94   void * context,
  95   float value)
  96 {
  97   zyn_addsynth_set_float_parameter(
  98     parameter_ptr->addsynth_component,
  99     parameter_ptr->addsynth_parameter,
 100     value);
 101
 102   return true;
 103 }
 104
 105 bool
 106 zynadd_int_parameter_changed(
 107   void * context,
 108   signed int value)
 109 {
 110 //  LOG_ERROR("int parameter changed to value %d", value);
 111
 112   zyn_addsynth_set_int_parameter(
 113     parameter_ptr->addsynth_component,
 114     parameter_ptr->addsynth_parameter,
 115     value);
 116
 117   return true;
 118 }
 119
 120 bool
 121 zynadd_enum_parameter_changed(
 122   void * context,
 123   const char * value,
 124   unsigned int value_index)
 125 {
 126   zyn_addsynth_set_int_parameter(
 127     parameter_ptr->addsynth_component,
 128     parameter_ptr->addsynth_parameter,
 129     value_index);
 130
 131   return true;
 132 }