From b770651f19741907cd415ea9ad6e087cb32cc948 Mon Sep 17 00:00:00 2001 From: Thierry Bastian Date: Fri, 14 Aug 2009 13:01:37 +0200 Subject: QVariant: added toFloat and toReal Made better use of qreal all over the place. We were previously using QVariant::toDouble a lot. That is triggering unnecessary conversions between float and double on embedded. Reviewed-by: ogoffart --- src/corelib/kernel/qvariant.cpp | 57 +++++++++++++++++++++++------ src/corelib/kernel/qvariant.h | 2 + src/gui/graphicsview/qgraphicsitem.cpp | 11 +++--- src/gui/image/qpnghandler.cpp | 2 +- src/gui/itemviews/qitemdelegate.cpp | 5 ++- src/gui/itemviews/qsortfilterproxymodel.cpp | 4 +- src/gui/itemviews/qstandarditemmodel.cpp | 4 +- src/gui/itemviews/qstyleditemdelegate.cpp | 3 +- src/gui/painting/qpdf.cpp | 10 ++--- src/gui/painting/qprintengine_win.cpp | 8 ++-- src/gui/painting/qprinter.cpp | 8 ++-- src/gui/text/qcssparser.cpp | 13 +++---- src/gui/text/qtextdocumentlayout.cpp | 4 +- src/gui/text/qtextformat.cpp | 7 ++-- 14 files changed, 90 insertions(+), 48 deletions(-) diff --git a/src/corelib/kernel/qvariant.cpp b/src/corelib/kernel/qvariant.cpp index b26cfdd0b..3c430eb37 100644 --- a/src/corelib/kernel/qvariant.cpp +++ b/src/corelib/kernel/qvariant.cpp @@ -936,10 +936,10 @@ static bool convert(const QVariant::Private *d, QVariant::Type t, void *result, float *f = static_cast(result); switch (d->type) { case QVariant::String: - *f = float(v_cast(d)->toDouble(ok)); + *f = v_cast(d)->toFloat(ok); break; case QVariant::ByteArray: - *f = float(v_cast(d)->toDouble(ok)); + *f = v_cast(d)->toFloat(ok); break; case QVariant::Bool: *f = float(d->data.b); @@ -1054,7 +1054,7 @@ static void streamDebug(QDebug dbg, const QVariant &v) dbg.nospace() << v.toULongLong(); break; case QMetaType::Float: - dbg.nospace() << qVariantValue(v); + dbg.nospace() << v.toFloat(); break; case QMetaType::QObjectStar: dbg.nospace() << qVariantValue(v); @@ -2331,16 +2331,17 @@ QBitArray QVariant::toBitArray() const } template -inline T qNumVariantToHelper(const QVariant::Private &d, QVariant::Type t, +inline T qNumVariantToHelper(const QVariant::Private &d, const QVariant::Handler *handler, bool *ok, const T& val) { + uint t = qMetaTypeId(); if (ok) *ok = true; if (d.type == t) return val; T ret; - if (!handler->convert(&d, t, &ret, ok) && ok) + if (!handler->convert(&d, QVariant::Type(t), &ret, ok) && ok) *ok = false; return ret; } @@ -2362,7 +2363,7 @@ inline T qNumVariantToHelper(const QVariant::Private &d, QVariant::Type t, */ int QVariant::toInt(bool *ok) const { - return qNumVariantToHelper(d, Int, handler, ok, d.data.i); + return qNumVariantToHelper(d, handler, ok, d.data.i); } /*! @@ -2382,7 +2383,7 @@ int QVariant::toInt(bool *ok) const */ uint QVariant::toUInt(bool *ok) const { - return qNumVariantToHelper(d, UInt, handler, ok, d.data.u); + return qNumVariantToHelper(d, handler, ok, d.data.u); } /*! @@ -2397,7 +2398,7 @@ uint QVariant::toUInt(bool *ok) const */ qlonglong QVariant::toLongLong(bool *ok) const { - return qNumVariantToHelper(d, LongLong, handler, ok, d.data.ll); + return qNumVariantToHelper(d, handler, ok, d.data.ll); } /*! @@ -2413,7 +2414,7 @@ qlonglong QVariant::toLongLong(bool *ok) const */ qulonglong QVariant::toULongLong(bool *ok) const { - return qNumVariantToHelper(d, ULongLong, handler, ok, d.data.ull); + return qNumVariantToHelper(d, handler, ok, d.data.ull); } /*! @@ -2440,7 +2441,7 @@ bool QVariant::toBool() const /*! Returns the variant as a double if the variant has type() \l - Double, \l Bool, \l ByteArray, \l Int, \l LongLong, \l String, \l + Double, \l QMetaType::Float, \l Bool, \l ByteArray, \l Int, \l LongLong, \l String, \l UInt, or \l ULongLong; otherwise returns 0.0. If \a ok is non-null: \c{*}\a{ok} is set to true if the value could be @@ -2450,7 +2451,41 @@ bool QVariant::toBool() const */ double QVariant::toDouble(bool *ok) const { - return qNumVariantToHelper(d, Double, handler, ok, d.data.d); + return qNumVariantToHelper(d, handler, ok, d.data.d); +} + +/*! + Returns the variant as a float if the variant has type() \l + Double, \l QMetaType::Float, \l Bool, \l ByteArray, \l Int, \l LongLong, \l String, \l + UInt, or \l ULongLong; otherwise returns 0.0. + + \since 4.6 + + If \a ok is non-null: \c{*}\a{ok} is set to true if the value could be + converted to a double; otherwise \c{*}\a{ok} is set to false. + + \sa canConvert(), convert() +*/ +float QVariant::toFloat(bool *ok) const +{ + return qNumVariantToHelper(d, handler, ok, d.data.d); +} + +/*! + Returns the variant as a qreal if the variant has type() \l + Double, \l QMetaType::Float, \l Bool, \l ByteArray, \l Int, \l LongLong, \l String, \l + UInt, or \l ULongLong; otherwise returns 0.0. + + \since 4.6 + + If \a ok is non-null: \c{*}\a{ok} is set to true if the value could be + converted to a double; otherwise \c{*}\a{ok} is set to false. + + \sa canConvert(), convert() +*/ +qreal QVariant::toReal(bool *ok) const +{ + return qNumVariantToHelper(d, handler, ok, d.data.d); } /*! diff --git a/src/corelib/kernel/qvariant.h b/src/corelib/kernel/qvariant.h index 569355a72..79bd5b80d 100644 --- a/src/corelib/kernel/qvariant.h +++ b/src/corelib/kernel/qvariant.h @@ -250,6 +250,8 @@ class Q_CORE_EXPORT QVariant qulonglong toULongLong(bool *ok = 0) const; bool toBool() const; double toDouble(bool *ok = 0) const; + float toFloat(bool *ok = 0) const; + qreal toReal(bool *ok = 0) const; QByteArray toByteArray() const; QBitArray toBitArray() const; QString toString() const; diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp index 537dab7f5..74b8fe2dc 100644 --- a/src/gui/graphicsview/qgraphicsitem.cpp +++ b/src/gui/graphicsview/qgraphicsitem.cpp @@ -2192,11 +2192,10 @@ qreal QGraphicsItem::effectiveOpacity() const void QGraphicsItem::setOpacity(qreal opacity) { // Notify change. - const QVariant newOpacityVariant(itemChange(ItemOpacityChange, double(opacity))); - qreal newOpacity = newOpacityVariant.toDouble(); + const QVariant newOpacityVariant(itemChange(ItemOpacityChange, opacity)); - // Normalize. - newOpacity = qBound(0.0, newOpacity, 1.0); + // Normalized opacity + qreal newOpacity = qBound(qreal(0), newOpacityVariant.toReal(), qreal(1)); // No change? Done. if (newOpacity == d_ptr->opacity) @@ -3696,8 +3695,8 @@ qreal QGraphicsItem::zValue() const */ void QGraphicsItem::setZValue(qreal z) { - const QVariant newZVariant(itemChange(ItemZValueChange, double(z))); - qreal newZ = qreal(newZVariant.toDouble()); + const QVariant newZVariant(itemChange(ItemZValueChange, z)); + qreal newZ = newZVariant.toReal(); if (newZ == d_ptr->z) return; diff --git a/src/gui/image/qpnghandler.cpp b/src/gui/image/qpnghandler.cpp index e3475d699..64bc5d320 100644 --- a/src/gui/image/qpnghandler.cpp +++ b/src/gui/image/qpnghandler.cpp @@ -956,7 +956,7 @@ QVariant QPngHandler::option(ImageOption option) const void QPngHandler::setOption(ImageOption option, const QVariant &value) { if (option == Gamma) - d->gamma = value.toDouble(); + d->gamma = value.toFloat(); else if (option == Quality) d->quality = value.toInt(); else if (option == Description) diff --git a/src/gui/itemviews/qitemdelegate.cpp b/src/gui/itemviews/qitemdelegate.cpp index 75d48a4a4..2cbde51ec 100644 --- a/src/gui/itemviews/qitemdelegate.cpp +++ b/src/gui/itemviews/qitemdelegate.cpp @@ -352,7 +352,10 @@ void QItemDelegate::setClipping(bool clip) QString QItemDelegatePrivate::valueToText(const QVariant &value, const QStyleOptionViewItemV4 &option) { QString text; - switch (value.type()) { + switch (value.userType()) { + case QMetaType::Float: + text = option.locale.toString(value.toFloat(), 'g'); + break; case QVariant::Double: text = option.locale.toString(value.toDouble(), 'g', DBL_DIG); break; diff --git a/src/gui/itemviews/qsortfilterproxymodel.cpp b/src/gui/itemviews/qsortfilterproxymodel.cpp index d39506d9d..8444a5b61 100644 --- a/src/gui/itemviews/qsortfilterproxymodel.cpp +++ b/src/gui/itemviews/qsortfilterproxymodel.cpp @@ -2316,7 +2316,7 @@ bool QSortFilterProxyModel::lessThan(const QModelIndex &left, const QModelIndex Q_D(const QSortFilterProxyModel); QVariant l = (left.model() ? left.model()->data(left, d->sort_role) : QVariant()); QVariant r = (right.model() ? right.model()->data(right, d->sort_role) : QVariant()); - switch (l.type()) { + switch (l.userType()) { case QVariant::Invalid: return (r.type() == QVariant::Invalid); case QVariant::Int: @@ -2327,6 +2327,8 @@ bool QSortFilterProxyModel::lessThan(const QModelIndex &left, const QModelIndex return l.toLongLong() < r.toLongLong(); case QVariant::ULongLong: return l.toULongLong() < r.toULongLong(); + case QMetaType::Float: + return l.toFloat() < r.toFloat(); case QVariant::Double: return l.toDouble() < r.toDouble(); case QVariant::Char: diff --git a/src/gui/itemviews/qstandarditemmodel.cpp b/src/gui/itemviews/qstandarditemmodel.cpp index 7505cccd9..168d42365 100644 --- a/src/gui/itemviews/qstandarditemmodel.cpp +++ b/src/gui/itemviews/qstandarditemmodel.cpp @@ -1809,7 +1809,7 @@ bool QStandardItem::operator<(const QStandardItem &other) const const int role = model() ? model()->sortRole() : Qt::DisplayRole; const QVariant l = data(role), r = other.data(role); // this code is copied from QSortFilterProxyModel::lessThan() - switch (l.type()) { + switch (l.userType()) { case QVariant::Invalid: return (r.type() == QVariant::Invalid); case QVariant::Int: @@ -1820,6 +1820,8 @@ bool QStandardItem::operator<(const QStandardItem &other) const return l.toLongLong() < r.toLongLong(); case QVariant::ULongLong: return l.toULongLong() < r.toULongLong(); + case QMetaType::Float: + return l.toFloat() < r.toFloat(); case QVariant::Double: return l.toDouble() < r.toDouble(); case QVariant::Char: diff --git a/src/gui/itemviews/qstyleditemdelegate.cpp b/src/gui/itemviews/qstyleditemdelegate.cpp index 0494d4fc8..f7c7d1260 100644 --- a/src/gui/itemviews/qstyleditemdelegate.cpp +++ b/src/gui/itemviews/qstyleditemdelegate.cpp @@ -267,7 +267,8 @@ QStyledItemDelegate::~QStyledItemDelegate() QString QStyledItemDelegate::displayText(const QVariant &value, const QLocale& locale) const { QString text; - switch (value.type()) { + switch (value.userType()) { + case QMetaType::Float: case QVariant::Double: text = locale.toString(value.toDouble()); break; diff --git a/src/gui/painting/qpdf.cpp b/src/gui/painting/qpdf.cpp index 3f5643e45..9b3b289f1 100644 --- a/src/gui/painting/qpdf.cpp +++ b/src/gui/painting/qpdf.cpp @@ -1471,10 +1471,10 @@ void QPdfBaseEngine::setProperty(PrintEnginePropertyKey key, const QVariant &val { QList margins(value.toList()); Q_ASSERT(margins.size() == 4); - d->leftMargin = margins.at(0).toDouble(); - d->topMargin = margins.at(1).toDouble(); - d->rightMargin = margins.at(2).toDouble(); - d->bottomMargin = margins.at(3).toDouble(); + d->leftMargin = margins.at(0).toReal(); + d->topMargin = margins.at(1).toReal(); + d->rightMargin = margins.at(2).toReal(); + d->bottomMargin = margins.at(3).toReal(); d->hasCustomPageMargins = true; break; } @@ -1576,7 +1576,7 @@ QVariant QPdfBaseEngine::property(PrintEnginePropertyKey key) const margins << d->leftMargin << d->topMargin << d->rightMargin << d->bottomMargin; } else { - const int defaultMargin = 10; // ~3.5 mm + const qreal defaultMargin = 10; // ~3.5 mm margins << defaultMargin << defaultMargin << defaultMargin << defaultMargin; } diff --git a/src/gui/painting/qprintengine_win.cpp b/src/gui/painting/qprintengine_win.cpp index 7ac3224e5..21c087312 100644 --- a/src/gui/painting/qprintengine_win.cpp +++ b/src/gui/painting/qprintengine_win.cpp @@ -1360,10 +1360,10 @@ void QWin32PrintEngine::setProperty(PrintEnginePropertyKey key, const QVariant & Q_ASSERT(margins.size() == 4); int left, top, right, bottom; // specified in 1/100 mm - left = (margins.at(0).toDouble()*25.4/72.0) * 100; - top = (margins.at(1).toDouble()*25.4/72.0) * 100; - right = (margins.at(2).toDouble()*25.4/72.0) * 100; - bottom = (margins.at(3).toDouble()*25.4/72.0) * 100; + left = (margins.at(0).toReal()*25.4/72.0) * 100; + top = (margins.at(1).toReal()*25.4/72.0) * 100; + right = (margins.at(2).toReal()*25.4/72.0) * 100; + bottom = (margins.at(3).toReal()*25.4/72.0) * 100; d->setPageMargins(left, top, right, bottom); break; } diff --git a/src/gui/painting/qprinter.cpp b/src/gui/painting/qprinter.cpp index 6910eb39a..f8399afba 100644 --- a/src/gui/painting/qprinter.cpp +++ b/src/gui/painting/qprinter.cpp @@ -1665,10 +1665,10 @@ void QPrinter::getPageMargins(qreal *left, qreal *top, qreal *right, qreal *bott Q_ASSERT(left && top && right && bottom); const qreal multiplier = qt_multiplierForUnit(unit, resolution()); QList margins(d->printEngine->property(QPrintEngine::PPK_PageMargins).toList()); - *left = margins.at(0).toDouble() / multiplier; - *top = margins.at(1).toDouble() / multiplier; - *right = margins.at(2).toDouble() / multiplier; - *bottom = margins.at(3).toDouble() / multiplier; + *left = margins.at(0).toReal() / multiplier; + *top = margins.at(1).toReal() / multiplier; + *right = margins.at(2).toReal() / multiplier; + *bottom = margins.at(3).toReal() / multiplier; } /*! diff --git a/src/gui/text/qcssparser.cpp b/src/gui/text/qcssparser.cpp index e0af6d22e..181ec7e8c 100644 --- a/src/gui/text/qcssparser.cpp +++ b/src/gui/text/qcssparser.cpp @@ -382,10 +382,7 @@ LengthData ValueExtractor::lengthValue(const Value& v) if (data.unit != LengthData::None) s.chop(2); - bool ok; - data.number = s.toDouble(&ok); - if (!ok) - data.number = 0; + data.number = s.toDouble(); return data; } @@ -711,7 +708,7 @@ static ColorData parseColorValue(Value v) for (int i = 0; i < qMin(colorDigits.count(), 7); i += 2) { if (colorDigits.at(i).type == Value::Percentage) { - colorDigits[i].variant = colorDigits.at(i).variant.toDouble() * 255. / 100.; + colorDigits[i].variant = colorDigits.at(i).variant.toReal() * (255. / 100.); colorDigits[i].type = Value::Number; } else if (colorDigits.at(i).type != Value::Number) { return ColorData(); @@ -788,7 +785,7 @@ static BrushData parseBrushValue(const Value &v, const QPalette &pal) ColorData cd = parseColorValue(color); if(cd.type == ColorData::Role) dependsOnThePalette = true; - stops.append(QGradientStop(stop.variant.toDouble(), colorFromData(cd, pal))); + stops.append(QGradientStop(stop.variant.toReal(), colorFromData(cd, pal))); } else { parser.next(); Value value; @@ -1079,8 +1076,8 @@ static bool setFontSizeFromValue(Value value, QFont *font, int *fontSizeAdjustme if (s.endsWith(QLatin1String("pt"), Qt::CaseInsensitive)) { s.chop(2); value.variant = s; - if (value.variant.convert(QVariant::Double)) { - font->setPointSizeF(value.variant.toDouble()); + if (value.variant.convert((QVariant::Type)qMetaTypeId())) { + font->setPointSizeF(value.variant.toReal()); valid = true; } } else if (s.endsWith(QLatin1String("px"), Qt::CaseInsensitive)) { diff --git a/src/gui/text/qtextdocumentlayout.cpp b/src/gui/text/qtextdocumentlayout.cpp index cfec8e9c3..e26961f60 100644 --- a/src/gui/text/qtextdocumentlayout.cpp +++ b/src/gui/text/qtextdocumentlayout.cpp @@ -198,8 +198,8 @@ public: if (v.isNull()) { return cellPadding; } else { - Q_ASSERT(v.type() == QVariant::Double); - return QFixed::fromReal(v.toDouble() * deviceScale); + Q_ASSERT(v.userType() == QVariant::Double || v.userType() == QMetaType::Float); + return QFixed::fromReal(v.toReal() * deviceScale); } } diff --git a/src/gui/text/qtextformat.cpp b/src/gui/text/qtextformat.cpp index 8e9b89215..075f2ff2b 100644 --- a/src/gui/text/qtextformat.cpp +++ b/src/gui/text/qtextformat.cpp @@ -271,6 +271,7 @@ static uint variantHash(const QVariant &variant) case QVariant::Invalid: return 0; case QVariant::Bool: return variant.toBool(); case QVariant::Int: return variant.toInt(); + case QMetaType::Float: return static_cast(variant.toFloat()); case QVariant::Double: return static_cast(variant.toDouble()); case QVariant::String: return qHash(variant.toString()); case QVariant::Color: return qHash(qvariant_cast(variant).rgb()); @@ -325,7 +326,7 @@ void QTextFormatPrivate::recalcFont() const f.setFamily(props.at(i).value.toString()); break; case QTextFormat::FontPointSize: - f.setPointSizeF(props.at(i).value.toDouble()); + f.setPointSizeF(props.at(i).value.toReal()); break; case QTextFormat::FontPixelSize: f.setPixelSize(props.at(i).value.toInt()); @@ -352,10 +353,10 @@ void QTextFormatPrivate::recalcFont() const f.setStrikeOut(props.at(i).value.toBool()); break; case QTextFormat::FontLetterSpacing: - f.setLetterSpacing(QFont::PercentageSpacing, props.at(i).value.toDouble()); + f.setLetterSpacing(QFont::PercentageSpacing, props.at(i).value.toReal()); break; case QTextFormat::FontWordSpacing: - f.setWordSpacing(props.at(i).value.toDouble()); + f.setWordSpacing(props.at(i).value.toReal()); break; case QTextFormat::FontCapitalization: f.setCapitalization(static_cast (props.at(i).value.toInt())); -- cgit v1.2.3