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55 lines
1.9 KiB
C++
55 lines
1.9 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2013 - Raw Material Software Ltd.
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Permission is granted to use this software under the terms of either:
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a) the GPL v2 (or any later version)
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b) the Affero GPL v3
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Details of these licenses can be found at: www.gnu.org/licenses
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.juce.com for more information.
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==============================================================================
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*/
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#ifndef __JUCER_VALUESOURCEHELPERS_JUCEHEADER__
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#define __JUCER_VALUESOURCEHELPERS_JUCEHEADER__
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//==============================================================================
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/**
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*/
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template <typename Type>
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class NumericValueSource : public ValueSourceFilter
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{
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public:
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NumericValueSource (const Value& source) : ValueSourceFilter (source) {}
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var getValue() const
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{
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return (Type) sourceValue.getValue();
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}
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void setValue (const var& newValue)
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{
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const Type newVal = static_cast <Type> (newValue);
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if (newVal != static_cast <Type> (getValue())) // this test is important, because if a property is missing, it won't
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sourceValue = newVal; // create it (causing an unwanted undo action) when a control sets it to 0
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}
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (NumericValueSource)
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};
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#endif // __JUCER_VALUESOURCEHELPERS_JUCEHEADER__
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