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90 lines
3.2 KiB
C++
90 lines
3.2 KiB
C++
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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#include <AzQtComponents/Utilities/Conversions.h>
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#include <AzCore/Math/MathUtils.h>
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#include <QLocale>
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namespace AzQtComponents
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{
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namespace Internal
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{
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template <typename FloatType>
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float clamp(FloatType channel)
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{
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return AZ::GetClamp(static_cast<float>(channel), 0.0f, 1.0f);
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};
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}
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using namespace Internal;
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QColor toQColor(const AZ::Color& color)
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{
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return QColor::fromRgbF(clamp(color.GetR()), clamp(color.GetG()), clamp(color.GetB()), clamp(color.GetA()));
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}
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QColor toQColor(float r, float g, float b, float a)
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{
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return QColor::fromRgbF(clamp(r), clamp(g), clamp(b), clamp(a));
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}
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AZ::Color fromQColor(const QColor& color)
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{
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const QColor rgb = color.toRgb();
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return AZ::Color(static_cast<float>(rgb.redF()), static_cast<float>(rgb.greenF()), static_cast<float>(rgb.blueF()), static_cast<float>(rgb.alphaF()));
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}
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QString toString(double value, int numDecimals, const QLocale& locale, bool showGroupSeparator)
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{
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const QChar decimalPoint = locale.decimalPoint();
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const QChar zeroDigit = locale.zeroDigit();
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// We want to truncate, not round. toString will round, so we add an extra decimal place to the formatting
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// so we can remove the last value
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QString retValue = locale.toString(value, 'f', (numDecimals > 0) ? numDecimals + 1 : 0);
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// Handle special cases when we have decimals in our value
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if (numDecimals > 0)
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{
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// Truncate the extra digit now, if it's still there
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int decimalPointIndex = retValue.lastIndexOf(decimalPoint);
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if ((decimalPointIndex > 0) && (retValue.size() - (decimalPointIndex + 1)) == (numDecimals + 1))
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{
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retValue.resize(retValue.size() - 1);
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}
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// Remove trailing zeros, since the locale conversion won't do
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// it for us
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QString trailingZeros = QString("%1+$").arg(zeroDigit);
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retValue.remove(QRegExp(trailingZeros));
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// It's possible we could be left with a decimal point on the end
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// if we stripped the trailing zeros, so if that's the case, then
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// add a zero digit on the end so that it is obvious that this is
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// a float value
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if (retValue.endsWith(decimalPoint))
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{
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retValue.append(zeroDigit);
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}
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}
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// Copied from the QDoubleSpinBox sub-class to handle removing the
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// group separator if necessary
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if (!showGroupSeparator && qAbs(value) >= 1000.0)
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{
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retValue.remove(locale.groupSeparator());
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}
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return retValue;
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}
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} // namespace AzQtComponents
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