Mercurial > hg > svcore
view base/PropertyContainer.cpp @ 1165:d57f9344db19
Check for plugin loadability before trying to load in the main process (POSIX only so far)
author | Chris Cannam |
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date | Mon, 11 Jan 2016 14:18:56 +0000 |
parents | 6a94bb528e9d |
children | a54016762f77 |
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/* -*- 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 "PropertyContainer.h" #include "RangeMapper.h" #include "UnitDatabase.h" #include <iostream> PropertyContainer::PropertyList PropertyContainer::getProperties() const { return PropertyList(); } PropertyContainer::PropertyType PropertyContainer::getPropertyType(const PropertyName &) const { return InvalidProperty; } QString PropertyContainer::getPropertyIconName(const PropertyName &) const { return QString(); } QString PropertyContainer::getPropertyGroupName(const PropertyName &) const { return QString(); } int PropertyContainer::getPropertyRangeAndValue(const PropertyName &, int *min, int *max, int *deflt) const { if (min) *min = 0; if (max) *max = 0; if (deflt) *deflt = 0; return 0; } QString PropertyContainer::getPropertyValueLabel(const PropertyName &, int) const { return QString(); } RangeMapper * PropertyContainer::getNewPropertyRangeMapper(const PropertyName &) const { return 0; } void PropertyContainer::setProperty(const PropertyName &name, int) { cerr << "WARNING: PropertyContainer[" << getPropertyContainerName() << "]::setProperty(" << name << "): no implementation in subclass!" << endl; } Command * PropertyContainer::getSetPropertyCommand(const PropertyName &name, int value) { int currentValue = getPropertyRangeAndValue(name, 0, 0, 0); if (value == currentValue) return 0; return new SetPropertyCommand(this, name, value); } void PropertyContainer::setPropertyFuzzy(QString nameString, QString valueString) { PropertyName name; int value; if (!convertPropertyStrings(nameString, valueString, name, value)) { cerr << "WARNING: PropertyContainer::setProperty(\"" << nameString << "\", \"" << valueString << "\"): Name and value conversion failed" << endl; return; } setProperty(name, value); } Command * PropertyContainer::getSetPropertyCommand(QString nameString, QString valueString) { PropertyName name; int value; if (!convertPropertyStrings(nameString, valueString, name, value)) { cerr << "WARNING: PropertyContainer::getSetPropertyCommand(\"" << nameString << "\", \"" << valueString << "\"): Name and value conversion failed" << endl; return 0; } return getSetPropertyCommand(name, value); } bool PropertyContainer::convertPropertyStrings(QString nameString, QString valueString, PropertyName &name, int &value) { PropertyList pl = getProperties(); QString adjusted = nameString.trimmed(); adjusted.replace('_', ' '); adjusted.replace('-', ' '); name = ""; for (PropertyList::iterator pli = pl.begin(); pli != pl.end(); ++pli) { QString label = getPropertyLabel(*pli); if (label != "" && (nameString == label || adjusted == label)) { name = *pli; break; } else if (nameString == *pli) { name = *pli; break; } } if (name == "") { cerr << "PropertyContainer::convertPropertyStrings: Unable to match name string \"" << nameString << "\"" << endl; return false; } value = 0; bool success = false; bool isDouble = false; double dval = valueString.toDouble(&isDouble); switch (getPropertyType(name)) { case ToggleProperty: if (valueString == tr("yes") || valueString == tr("on") || valueString == tr("true")) { value = 1; success = true; } else if (valueString == tr("no") || valueString == tr("off") || valueString == tr("false")) { value = 0; success = true; } break; case RangeProperty: if (isDouble) { RangeMapper *mapper = getNewPropertyRangeMapper(name); if (mapper) { value = mapper->getPositionForValue(dval); delete mapper; success = true; } } break; case ValueProperty: case ColourProperty: { int min, max; getPropertyRangeAndValue(name, &min, &max, 0); for (int i = min; i <= max; ++i) { if (valueString == getPropertyValueLabel(name, i)) { value = i; success = true; break; } } break; } case UnitsProperty: value = UnitDatabase::getInstance()->getUnitId(valueString, false); if (value >= 0) success = true; else value = 0; break; case InvalidProperty: SVDEBUG << "PropertyContainer::convertPropertyStrings: Invalid property name \"" << name << "\"" << endl; return false; } if (success) return true; int min, max; getPropertyRangeAndValue(name, &min, &max, 0); bool ok = false; int i = valueString.toInt(&ok); if (!ok) { cerr << "PropertyContainer::convertPropertyStrings: Unable to parse value string \"" << valueString << "\"" << endl; return false; } else if (i < min || i > max) { SVDEBUG << "PropertyContainer::convertPropertyStrings: Property value \"" << i << "\" outside valid range " << min << " to " << max << endl; return false; } value = i; return true; } PropertyContainer::SetPropertyCommand::SetPropertyCommand(PropertyContainer *pc, const PropertyName &pn, int value) : m_pc(pc), m_pn(pn), m_value(value), m_oldValue(0) { } void PropertyContainer::SetPropertyCommand::execute() { m_oldValue = m_pc->getPropertyRangeAndValue(m_pn, 0, 0, 0); m_pc->setProperty(m_pn, m_value); } void PropertyContainer::SetPropertyCommand::unexecute() { m_pc->setProperty(m_pn, m_oldValue); } QString PropertyContainer::SetPropertyCommand::getName() const { return tr("Set %1 Property").arg(m_pn); }