diff widgets/PluginParameterBox.cpp @ 0:fc9323a41f5a

start base : Sonic Visualiser sv1-1.0rc1

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widgets/PluginParameterBox.cpp	Fri May 11 09:08:14 2007 +0000
@@ -0,0 +1,369 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Sonic Visualiser
+    An audio file viewer and annotation editor.
+    Centre for Digital Music, Queen Mary, University of London.
+    This file copyright 2006 Chris Cannam and QMUL.
+    
+    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.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+#include "PluginParameterBox.h"
+
+#include "AudioDial.h"
+
+#include "plugin/PluginXml.h"
+
+#include "base/RangeMapper.h"
+
+#include <QDoubleSpinBox>
+#include <QGridLayout>
+#include <QComboBox>
+#include <QCheckBox>
+#include <QLayout>
+#include <QLabel>
+
+#include <iostream>
+#include <string>
+
+#include <cmath>
+
+PluginParameterBox::PluginParameterBox(Vamp::PluginBase *plugin, QWidget *parent) :
+    QFrame(parent),
+    m_plugin(plugin)
+{
+    m_layout = new QGridLayout;
+    setLayout(m_layout);
+    populate();
+}
+
+PluginParameterBox::~PluginParameterBox()
+{
+}
+
+void
+PluginParameterBox::populate()
+{
+    Vamp::PluginBase::ParameterList params = m_plugin->getParameterDescriptors();
+    Vamp::PluginBase::ProgramList programs = m_plugin->getPrograms();
+
+    m_params.clear();
+
+    if (params.empty() && programs.empty()) {
+        m_layout->addWidget
+            (new QLabel(tr("This plugin has no adjustable parameters.")),
+             0, 0);
+    }
+
+    int offset = 0;
+
+    if (!programs.empty()) {
+
+        std::string currentProgram = m_plugin->getCurrentProgram();
+
+        QComboBox *programCombo = new QComboBox;
+        programCombo->setMaxVisibleItems(20);
+
+        for (size_t i = 0; i < programs.size(); ++i) {
+            programCombo->addItem(programs[i].c_str());
+            if (programs[i] == currentProgram) {
+                programCombo->setCurrentIndex(i);
+            }
+        }
+
+        m_layout->addWidget(new QLabel(tr("Program")), 0, 0);
+        m_layout->addWidget(programCombo, 0, 1, 1, 2);
+
+        connect(programCombo, SIGNAL(currentIndexChanged(const QString &)),
+                this, SLOT(programComboChanged(const QString &)));
+
+        offset = 1;
+    }
+
+    for (size_t i = 0; i < params.size(); ++i) {
+
+        QString identifier = params[i].identifier.c_str();
+        QString name = params[i].name.c_str();
+        QString unit = params[i].unit.c_str();
+
+        float min = params[i].minValue;
+        float max = params[i].maxValue;
+        float deft = params[i].defaultValue;
+        float value = m_plugin->getParameter(params[i].identifier);
+
+        float qtz = 0.0;
+        if (params[i].isQuantized) qtz = params[i].quantizeStep;
+
+        std::vector<std::string> valueNames = params[i].valueNames;
+
+        // construct an integer range
+
+        int imin = 0, imax = 100;
+
+        if (qtz > 0.0) {
+            imax = int((max - min) / qtz);
+        } else {
+            qtz = (max - min) / 100.0;
+        }
+
+        //!!! would be nice to ensure the default value corresponds to
+        // an integer!
+
+        QLabel *label = new QLabel(name);
+        if (params[i].description != "") {
+            label->setToolTip(params[i].description.c_str());
+        }
+        m_layout->addWidget(label, i + offset, 0);
+
+        ParamRec rec;
+        rec.param = params[i];
+        rec.dial = 0;
+        rec.spin = 0;
+        rec.check = 0;
+        rec.combo = 0;
+        
+        if (params[i].isQuantized && !valueNames.empty()) {
+            
+            QComboBox *combobox = new QComboBox;
+            combobox->setObjectName(identifier);
+            for (unsigned int j = 0; j < valueNames.size(); ++j) {
+                combobox->addItem(valueNames[j].c_str());
+                if ((unsigned int)(lrintf(fabsf((value - min) / qtz))) == j) {
+                    combobox->setCurrentIndex(j);
+                }
+            }
+            connect(combobox, SIGNAL(activated(int)),
+                    this, SLOT(dialChanged(int)));
+            m_layout->addWidget(combobox, i + offset, 1, 1, 2);
+            rec.combo = combobox;
+
+        } else if (min == 0.0 && max == 1.0 && qtz == 1.0) {
+            
+            QCheckBox *checkbox = new QCheckBox;
+            checkbox->setObjectName(identifier);
+            checkbox->setCheckState(value == 0.0 ? Qt::Unchecked : Qt::Checked);
+            connect(checkbox, SIGNAL(stateChanged(int)),
+                    this, SLOT(checkBoxChanged(int)));
+            m_layout->addWidget(checkbox, i + offset, 2);
+            rec.check = checkbox;
+
+        } else {
+            
+            AudioDial *dial = new AudioDial;
+            dial->setObjectName(name);
+            dial->setMinimum(imin);
+            dial->setMaximum(imax);
+            dial->setPageStep(1);
+            dial->setNotchesVisible((imax - imin) <= 12);
+            dial->setDefaultValue(lrintf((deft - min) / qtz));
+            dial->setValue(lrintf((value - min) / qtz));
+            dial->setFixedWidth(32);
+            dial->setFixedHeight(32);
+            dial->setRangeMapper(new LinearRangeMapper
+                                 (imin, imax, min, max, unit));
+            dial->setShowToolTip(true);
+            connect(dial, SIGNAL(valueChanged(int)),
+                    this, SLOT(dialChanged(int)));
+            m_layout->addWidget(dial, i + offset, 1);
+
+            QDoubleSpinBox *spinbox = new QDoubleSpinBox;
+            spinbox->setObjectName(identifier);
+            spinbox->setMinimum(min);
+            spinbox->setMaximum(max);
+            spinbox->setSuffix(QString(" %1").arg(unit));
+            spinbox->setSingleStep(qtz);
+            spinbox->setValue(value);
+            spinbox->setDecimals(4);
+            connect(spinbox, SIGNAL(valueChanged(double)),
+                    this, SLOT(spinBoxChanged(double)));
+            m_layout->addWidget(spinbox, i + offset, 2);
+            rec.dial = dial;
+            rec.spin = spinbox;
+        }
+
+        m_params[identifier] = rec;
+        m_nameMap[name] = identifier;
+    }
+}
+
+void
+PluginParameterBox::dialChanged(int ival)
+{
+    QObject *obj = sender();
+    QString identifier = obj->objectName();
+
+    if (m_params.find(identifier) == m_params.end() &&
+        m_nameMap.find(identifier) != m_nameMap.end()) {
+        identifier = m_nameMap[identifier];
+    }
+
+    if (m_params.find(identifier) == m_params.end()) {
+        std::cerr << "WARNING: PluginParameterBox::dialChanged: Unknown parameter \"" << identifier.toStdString() << "\"" << std::endl;
+        return;
+    }
+
+    Vamp::PluginBase::ParameterDescriptor params = m_params[identifier].param;
+
+    float min = params.minValue;
+    float max = params.maxValue;
+
+    float newValue;
+
+    float qtz = 0.0;
+    if (params.isQuantized) qtz = params.quantizeStep;
+
+    AudioDial *ad = dynamic_cast<AudioDial *>(obj);
+    
+    if (ad && ad->rangeMapper()) {
+        
+        newValue = ad->mappedValue();
+        if (newValue < min) newValue = min;
+        if (newValue > max) newValue = max;
+        if (qtz != 0.0) {
+            ival = lrintf((newValue - min) / qtz);
+            newValue = min + ival * qtz;
+        }
+
+    } else {
+        if (qtz == 0.0) {
+            qtz = (max - min) / 100.0;
+        }
+        newValue = min + ival * qtz;
+    }
+
+    QDoubleSpinBox *spin = m_params[identifier].spin;
+    if (spin) {
+        spin->blockSignals(true);
+        spin->setValue(newValue);
+        spin->blockSignals(false);
+    }
+
+    m_plugin->setParameter(identifier.toStdString(), newValue);
+
+    emit pluginConfigurationChanged(PluginXml(m_plugin).toXmlString());
+}
+
+void
+PluginParameterBox::checkBoxChanged(int state)
+{
+    QObject *obj = sender();
+    QString identifier = obj->objectName();
+
+    if (m_params.find(identifier) == m_params.end() &&
+        m_nameMap.find(identifier) != m_nameMap.end()) {
+        identifier = m_nameMap[identifier];
+    }
+
+    if (m_params.find(identifier) == m_params.end()) {
+        std::cerr << "WARNING: PluginParameterBox::checkBoxChanged: Unknown parameter \"" << identifier.toStdString() << "\"" << std::endl;
+        return;
+    }
+
+    Vamp::PluginBase::ParameterDescriptor params = m_params[identifier].param;
+
+    if (state) m_plugin->setParameter(identifier.toStdString(), 1.0);
+    else m_plugin->setParameter(identifier.toStdString(), 0.0);
+
+    emit pluginConfigurationChanged(PluginXml(m_plugin).toXmlString());
+}
+
+void
+PluginParameterBox::spinBoxChanged(double value)
+{
+    QObject *obj = sender();
+    QString identifier = obj->objectName();
+
+    if (m_params.find(identifier) == m_params.end() &&
+        m_nameMap.find(identifier) != m_nameMap.end()) {
+        identifier = m_nameMap[identifier];
+    }
+
+    if (m_params.find(identifier) == m_params.end()) {
+        std::cerr << "WARNING: PluginParameterBox::spinBoxChanged: Unknown parameter \"" << identifier.toStdString() << "\"" << std::endl;
+        return;
+    }
+
+    Vamp::PluginBase::ParameterDescriptor params = m_params[identifier].param;
+
+    float min = params.minValue;
+    float max = params.maxValue;
+
+    float qtz = 0.0;
+    if (params.isQuantized) qtz = params.quantizeStep;
+    
+    if (qtz > 0.0) {
+        int step = int((value - min) / qtz);
+        value = min + step * qtz;
+    }
+
+    int imax = 100;
+    
+    if (qtz > 0.0) {
+        imax = int((max - min) / qtz);
+    } else {
+        qtz = (max - min) / 100.0;
+    }
+
+    int ival = lrintf((value - min) / qtz);
+
+    AudioDial *dial = m_params[identifier].dial;
+    if (dial) {
+        dial->blockSignals(true);
+        dial->setValue(ival);
+        dial->blockSignals(false);
+    }
+
+    m_plugin->setParameter(identifier.toStdString(), value);
+
+    emit pluginConfigurationChanged(PluginXml(m_plugin).toXmlString());
+}
+
+void
+PluginParameterBox::programComboChanged(const QString &newProgram)
+{
+    m_plugin->selectProgram(newProgram.toStdString());
+
+    for (std::map<QString, ParamRec>::iterator i = m_params.begin();
+         i != m_params.end(); ++i) {
+
+        Vamp::PluginBase::ParameterDescriptor &param = i->second.param;
+        float value = m_plugin->getParameter(param.identifier);
+
+        if (i->second.spin) {
+            i->second.spin->blockSignals(true);
+            i->second.spin->setValue(value);
+            i->second.spin->blockSignals(false);
+        }
+
+        if (i->second.dial) {
+
+            float min = param.minValue;
+            float max = param.maxValue;
+
+            float qtz = 0.0;
+            if (param.isQuantized) qtz = param.quantizeStep;
+
+            if (qtz == 0.0) {
+                qtz = (max - min) / 100.0;
+            }
+
+            i->second.dial->blockSignals(true);
+            i->second.dial->setValue(lrintf((value - min) / qtz));
+            i->second.dial->blockSignals(false);
+        }
+
+        if (i->second.combo) {
+            i->second.combo->blockSignals(true);
+            i->second.combo->setCurrentIndex(lrintf(value));
+            i->second.combo->blockSignals(false);
+        }
+    }
+
+    emit pluginConfigurationChanged(PluginXml(m_plugin).toXmlString());
+}
+