tomwalters@116: // Copyright 2006, Willem van Engen
tomwalters@116: //
tomwalters@116: // AIM-C: A C++ implementation of the Auditory Image Model
tomwalters@116: // http://www.acousticscale.org/AIMC
tomwalters@116: //
tomwalters@116: // Licensed under the Apache License, Version 2.0 (the "License");
tomwalters@116: // you may not use this file except in compliance with the License.
tomwalters@116: // You may obtain a copy of the License at
tomwalters@116: //
tomwalters@116: //     http://www.apache.org/licenses/LICENSE-2.0
tomwalters@116: //
tomwalters@116: // Unless required by applicable law or agreed to in writing, software
tomwalters@116: // distributed under the License is distributed on an "AS IS" BASIS,
tomwalters@116: // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
tomwalters@116: // See the License for the specific language governing permissions and
tomwalters@116: // limitations under the License.
tomwalters@116: 
tomwalters@116: #include "Support/Common.h"
tomwalters@116: #include <string.h>
tomwalters@116: #include <stdio.h>
tomwalters@116: 
tomwalters@116: #include "Modules/Output/Graphics/GraphAxisSpec.h"
tomwalters@116: 
tom@118: namespace aimc {
tom@118: 
tomwalters@116: GraphAxisSpec::GraphAxisSpec(float fMin, float fMax, Scale::ScaleType iScale) {
tomwalters@117:   m_pScale = NULL;
tomwalters@117:   m_sLabel = NULL;
tomwalters@117:   SetDisplayRange(fMin, fMax);
tomwalters@117:   SetDisplayScale(iScale);
tomwalters@116: }
tomwalters@116: 
tomwalters@116: GraphAxisSpec::GraphAxisSpec() {
tomwalters@117:   m_pScale = NULL;
tomwalters@117:   m_sLabel = NULL;
tomwalters@117:   m_fMin = 0;
tomwalters@117:   m_fMax = 0;
tomwalters@116: }
tomwalters@116: 
tomwalters@116: GraphAxisSpec::~GraphAxisSpec() {
tomwalters@117:   DELETE_IF_NONNULL(m_pScale);
tomwalters@116: }
tomwalters@116: 
tomwalters@116: void GraphAxisSpec::SetDisplayRange(float fMin, float fMax) {
tomwalters@117:   AIM_ASSERT(fMin <= fMax);
tomwalters@117:   m_fMin = fMin;
tomwalters@117:   m_fMax = fMax;
tomwalters@117:   if (m_pScale)
tomwalters@117:     m_pScale->FromLinearScaledExtrema(m_fMin, m_fMax);
tomwalters@116: }
tomwalters@116: 
tomwalters@116: void GraphAxisSpec::SetDisplayScale(Scale::ScaleType iScale) {
tomwalters@117:   DELETE_IF_NONNULL(m_pScale);
tomwalters@117:   m_pScale = Scale::Create(iScale);
tom@118:   AIM_ASSERT(m_pScale);
tomwalters@117:   m_pScale->FromLinearScaledExtrema(m_fMin, m_fMax);
tomwalters@116: }
tomwalters@116: 
tomwalters@116: bool GraphAxisSpec::Initialize(Parameters *parameters,
tomwalters@116:                                const char *sPrefix,
tomwalters@116:                                float fMin,
tomwalters@116:                                float fMax,
tomwalters@116:                                Scale::ScaleType iScale) {
tom@118:   AIM_ASSERT(parameters);
tomwalters@117:   AIM_ASSERT(sPrefix && sPrefix[0]!='\0');
tomwalters@117:   char sParamName[Parameters::MaxParamNameLength];
tomwalters@116: 
tomwalters@117:   //! The following parameters are recognized for each axis:
tomwalters@117:   //!   - \c "<prefix>.min", the minimum value; a float or \c 'auto'
tomwalters@117:   snprintf(sParamName, sizeof(sParamName)/sizeof(sParamName[0]),
tomwalters@116:           "%s.min",
tomwalters@116:           sPrefix);
tom@118:   if (parameters->IsSet(sParamName)) {
tomwalters@117:     if (strcmp(parameters->GetString(sParamName), "auto") == 0)
tomwalters@117:       m_fMin = fMin;
tomwalters@117:     else
tomwalters@117:       m_fMin = parameters->GetFloat(sParamName);
tomwalters@117:   }
tomwalters@116: 
tomwalters@117:   //!   - \c "<prefix>.max", the maximum value; a float or \c 'auto'
tomwalters@117:   snprintf(sParamName, sizeof(sParamName)/sizeof(sParamName[0]),
tomwalters@116:           "%s.max",
tomwalters@116:           sPrefix);
tom@118:   if (parameters->IsSet(sParamName)) {
tomwalters@117:     if (strcmp(parameters->GetString(sParamName), "auto")==0)
tomwalters@117:       m_fMax = fMax;
tomwalters@117:     else
tomwalters@117:       m_fMax = parameters->GetFloat(sParamName);
tomwalters@117:   }
tomwalters@116: 
tomwalters@117:   // Make sure ranges are updated properly
tomwalters@117:   SetDisplayRange(m_fMin, m_fMax);
tomwalters@116: 
tomwalters@117:   //!   - \c "<prefix>.scale", the scale; one of \c 'auto',
tomwalters@116:   //!     \c 'linear', \c 'erb' or \c 'log'
tomwalters@117:   snprintf(sParamName, sizeof(sParamName)/sizeof(sParamName[0]),
tomwalters@116:            "%s.scale",
tomwalters@116:            sPrefix);
tom@118:   if (parameters->IsSet(sParamName)) {
tomwalters@117:     // Scale change, we updated min/max values already so no need to
tomwalters@117:     Scale::ScaleType iThisScale;
tomwalters@117:     const char *sVal = parameters->GetString(sParamName);
tomwalters@117:     if (strcmp(sVal, "auto")==0)
tomwalters@117:       iThisScale = iScale;
tomwalters@117:     else if (strcmp(sVal, "linear")==0)
tomwalters@117:       iThisScale = Scale::SCALE_LINEAR;
tomwalters@117:     else if (strcmp(sVal, "erb")==0)
tomwalters@117:       iThisScale = Scale::SCALE_ERB;
tomwalters@117:     else if (strcmp(sVal, "log")==0)
tomwalters@117:       iThisScale = Scale::SCALE_LOG;
tomwalters@117:     else {
tom@118:       LOG_ERROR(_T("Unrecognized scale type in parameter '%s': '%s'"),
tomwalters@116:                   sParamName,
tomwalters@116:                   sVal);
tomwalters@117:       return false;
tomwalters@117:     }
tomwalters@117:     SetDisplayScale(iThisScale);
tomwalters@117:   }
tomwalters@116: 
tomwalters@117:   //!   - \c "<prefix>.label", the label; a string
tomwalters@117:   snprintf(sParamName, sizeof(sParamName)/sizeof(sParamName[0]),
tomwalters@116:            "%s.label",
tomwalters@116:            sPrefix);
tomwalters@117:   if (parameters->IsSet(sParamName))
tomwalters@117:     m_sLabel = parameters->GetString(sParamName); // Assumes strings remains valid
tomwalters@116: 
tomwalters@117:   return true;
tomwalters@116: }
tom@118: }  // namespace aimc