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43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE 6 technical preview.
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Copyright (c) 2017 - ROLI Ltd.
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You may use this code under the terms of the GPL v3
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(see www.gnu.org/licenses).
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For this technical preview, this file is not subject to commercial licensing.
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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#pragma once
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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 override
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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) override
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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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