本文整理汇总了C++中qstringlist::const_iterator::toDouble方法的典型用法代码示例。如果您正苦于以下问题：C++ const_iterator::toDouble方法的具体用法？C++ const_iterator::toDouble怎么用？C++ const_iterator::toDouble使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类qstringlist::const_iterator的用法示例。
在下文中一共展示了const_iterator::toDouble方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: convertToNumber
double convertToNumber(const QStringList::const_iterator & strPtr, QStringList * lineStrList, bool & ok)
{
double d = -1;
ok = false;
if(strPtr != lineStrList->end())
d = strPtr->toDouble(&ok);
return d;
}示例2: if
void QgsSimpleLineSymbolLayerV2::applyDataDefinedSymbology( QgsSymbolV2RenderContext& context, QPen& pen, QPen& selPen, double& offset )
{
//data defined properties
double scaledWidth = 0;
if ( mStrokeWidthExpression )
{
scaledWidth = mStrokeWidthExpression->evaluate( const_cast<QgsFeature*>( context.feature() ) ).toDouble()
* QgsSymbolLayerV2Utils::lineWidthScaleFactor( context.renderContext(), mWidthUnit );
pen.setWidthF( scaledWidth );
selPen.setWidthF( scaledWidth );
}
else if ( context.renderHints() & QgsSymbolV2::DataDefinedSizeScale )
{
scaledWidth = mWidth * QgsSymbolLayerV2Utils::lineWidthScaleFactor( context.renderContext(), mWidthUnit );
pen.setWidthF( scaledWidth );
selPen.setWidthF( scaledWidth );
}
//color
if ( mStrokeColorExpression )
{
pen.setColor( QgsSymbolLayerV2Utils::decodeColor( mStrokeColorExpression->evaluate( const_cast<QgsFeature*>( context.feature() ) ).toString() ) );
}
//offset
offset = mOffset;
if ( mLineOffsetExpression )
{
offset = mLineOffsetExpression->evaluate( const_cast<QgsFeature*>( context.feature() ) ).toDouble();
}
//dash dot vector
if ( mDashPatternExpression )
{
QVector<qreal> dashVector;
QStringList dashList = mDashPatternExpression->evaluate( const_cast<QgsFeature*>( context.feature() ) ).toString().split( ";" );
QStringList::const_iterator dashIt = dashList.constBegin();
for ( ; dashIt != dashList.constEnd(); ++dashIt )
{
dashVector.push_back( dashIt->toDouble() * QgsSymbolLayerV2Utils::lineWidthScaleFactor( context.renderContext(), mCustomDashPatternUnit ) / mPen.widthF() );
}
pen.setDashPattern( dashVector );
}
//join style
if ( mJoinStyleExpression )
{
QString joinStyleString = mJoinStyleExpression->evaluate( const_cast<QgsFeature*>( context.feature() ) ).toString();
pen.setJoinStyle( QgsSymbolLayerV2Utils::decodePenJoinStyle( joinStyleString ) );
}
//cap style
if ( mCapStyleExpression )
{
QString capStyleString = mCapStyleExpression->evaluate( const_cast<QgsFeature*>( context.feature() ) ).toString();
pen.setCapStyle( QgsSymbolLayerV2Utils::decodePenCapStyle( capStyleString ) );
}
}示例3: if
void QgsSimpleLineSymbolLayerV2::applyDataDefinedSymbology( QgsSymbolV2RenderContext& context, QPen& pen, QPen& selPen, double& offset )
{
if ( mDataDefinedProperties.isEmpty() )
return; // shortcut
//data defined properties
double scaledWidth = 0;
QgsExpression* strokeWidthExpression = expression( "width" );
if ( strokeWidthExpression )
{
scaledWidth = strokeWidthExpression->evaluate( const_cast<QgsFeature*>( context.feature() ) ).toDouble()
* QgsSymbolLayerV2Utils::lineWidthScaleFactor( context.renderContext(), mWidthUnit, mWidthMapUnitScale );
pen.setWidthF( scaledWidth );
selPen.setWidthF( scaledWidth );
}
else if ( context.renderHints() & QgsSymbolV2::DataDefinedSizeScale )
{
scaledWidth = mWidth * QgsSymbolLayerV2Utils::lineWidthScaleFactor( context.renderContext(), mWidthUnit, mWidthMapUnitScale );
pen.setWidthF( scaledWidth );
selPen.setWidthF( scaledWidth );
}
//color
QgsExpression* strokeColorExpression = expression( "color" );
if ( strokeColorExpression )
{
pen.setColor( QgsSymbolLayerV2Utils::decodeColor( strokeColorExpression->evaluate( const_cast<QgsFeature*>( context.feature() ) ).toString() ) );
}
//offset
QgsExpression* lineOffsetExpression = expression( "offset" );
if ( lineOffsetExpression )
{
offset = lineOffsetExpression->evaluate( const_cast<QgsFeature*>( context.feature() ) ).toDouble();
}
//dash dot vector
QgsExpression* dashPatternExpression = expression( "customdash" );
if ( dashPatternExpression )
{
double scaledWidth = mWidth * QgsSymbolLayerV2Utils::lineWidthScaleFactor( context.renderContext(), mWidthUnit, mWidthMapUnitScale );
double dashWidthDiv = mPen.widthF();
if ( strokeWidthExpression )
{
dashWidthDiv = pen.widthF();
scaledWidth = pen.widthF();
}
//fix dash pattern width in Qt 4.8
QStringList versionSplit = QString( qVersion() ).split( "." );
if ( versionSplit.size() > 1
&& versionSplit.at( 1 ).toInt() >= 8
&& ( scaledWidth * context.renderContext().rasterScaleFactor() ) < 1.0 )
{
dashWidthDiv = 1.0;
}
QVector<qreal> dashVector;
QStringList dashList = dashPatternExpression->evaluate( const_cast<QgsFeature*>( context.feature() ) ).toString().split( ";" );
QStringList::const_iterator dashIt = dashList.constBegin();
for ( ; dashIt != dashList.constEnd(); ++dashIt )
{
dashVector.push_back( dashIt->toDouble() * QgsSymbolLayerV2Utils::lineWidthScaleFactor( context.renderContext(), mCustomDashPatternUnit, mCustomDashPatternMapUnitScale ) / dashWidthDiv );
}
pen.setDashPattern( dashVector );
}
//join style
QgsExpression* joinStyleExpression = expression( "joinstyle" );
if ( joinStyleExpression )
{
QString joinStyleString = joinStyleExpression->evaluate( const_cast<QgsFeature*>( context.feature() ) ).toString();
pen.setJoinStyle( QgsSymbolLayerV2Utils::decodePenJoinStyle( joinStyleString ) );
}
//cap style
QgsExpression* capStyleExpression = expression( "capstyle" );
if ( capStyleExpression )
{
QString capStyleString = capStyleExpression->evaluate( const_cast<QgsFeature*>( context.feature() ) ).toString();
pen.setCapStyle( QgsSymbolLayerV2Utils::decodePenCapStyle( capStyleString ) );
}
}示例4: evaluateDataDefinedProperty
void QgsSimpleLineSymbolLayerV2::applyDataDefinedSymbology( QgsSymbolV2RenderContext& context, QPen& pen, QPen& selPen, double& offset )
{
if ( !hasDataDefinedProperties() )
return; // shortcut
//data defined properties
bool hasStrokeWidthExpression = false;
if ( hasDataDefinedProperty( QgsSymbolLayerV2::EXPR_WIDTH ) )
{
context.setOriginalValueVariable( mWidth );
double scaledWidth = QgsSymbolLayerV2Utils::convertToPainterUnits( context.renderContext(),
evaluateDataDefinedProperty( QgsSymbolLayerV2::EXPR_WIDTH, context, mWidth ).toDouble(),
mWidthUnit, mWidthMapUnitScale );
pen.setWidthF( scaledWidth );
selPen.setWidthF( scaledWidth );
hasStrokeWidthExpression = true;
}
//color
bool ok;
if ( hasDataDefinedProperty( QgsSymbolLayerV2::EXPR_COLOR ) )
{
context.setOriginalValueVariable( QgsSymbolLayerV2Utils::encodeColor( pen.color() ) );
QString colorString = evaluateDataDefinedProperty( QgsSymbolLayerV2::EXPR_COLOR, context, QVariant(), &ok ).toString();
if ( ok )
pen.setColor( QgsSymbolLayerV2Utils::decodeColor( colorString ) );
}
//offset
if ( hasDataDefinedProperty( QgsSymbolLayerV2::EXPR_OFFSET ) )
{
context.setOriginalValueVariable( mOffset );
offset = evaluateDataDefinedProperty( QgsSymbolLayerV2::EXPR_OFFSET, context, offset ).toDouble();
}
//dash dot vector
if ( hasDataDefinedProperty( QgsSymbolLayerV2::EXPR_CUSTOMDASH ) )
{
double scaledWidth = QgsSymbolLayerV2Utils::convertToPainterUnits( context.renderContext(), mWidth, mWidthUnit, mWidthMapUnitScale );
double dashWidthDiv = mPen.widthF();
if ( hasStrokeWidthExpression )
{
dashWidthDiv = pen.widthF();
scaledWidth = pen.widthF();
}
//fix dash pattern width in Qt 4.8
QStringList versionSplit = QString( qVersion() ).split( '.' );
if ( versionSplit.size() > 1
&& versionSplit.at( 1 ).toInt() >= 8
&& ( scaledWidth * context.renderContext().rasterScaleFactor() ) < 1.0 )
{
dashWidthDiv = 1.0;
}
QVector<qreal> dashVector;
QStringList dashList = evaluateDataDefinedProperty( QgsSymbolLayerV2::EXPR_CUSTOMDASH, context, QVariant(), &ok ).toString().split( ';' );
if ( ok )
{
QStringList::const_iterator dashIt = dashList.constBegin();
for ( ; dashIt != dashList.constEnd(); ++dashIt )
{
dashVector.push_back( QgsSymbolLayerV2Utils::convertToPainterUnits( context.renderContext(), dashIt->toDouble(), mCustomDashPatternUnit, mCustomDashPatternMapUnitScale ) / dashWidthDiv );
}
pen.setDashPattern( dashVector );
}
}
//line style
if ( hasDataDefinedProperty( QgsSymbolLayerV2::EXPR_LINE_STYLE ) )
{
context.setOriginalValueVariable( QgsSymbolLayerV2Utils::encodePenStyle( pen.style() ) );
QString lineStyleString = evaluateDataDefinedProperty( QgsSymbolLayerV2::EXPR_LINE_STYLE, context, QVariant(), &ok ).toString();
if ( ok )
pen.setStyle( QgsSymbolLayerV2Utils::decodePenStyle( lineStyleString ) );
}
//join style
if ( hasDataDefinedProperty( QgsSymbolLayerV2::EXPR_JOINSTYLE ) )
{
context.setOriginalValueVariable( QgsSymbolLayerV2Utils::encodePenJoinStyle( pen.joinStyle() ) );
QString joinStyleString = evaluateDataDefinedProperty( QgsSymbolLayerV2::EXPR_JOINSTYLE, context, QVariant(), &ok ).toString();
if ( ok )
pen.setJoinStyle( QgsSymbolLayerV2Utils::decodePenJoinStyle( joinStyleString ) );
}
//cap style
if ( hasDataDefinedProperty( QgsSymbolLayerV2::EXPR_CAPSTYLE ) )
{
context.setOriginalValueVariable( QgsSymbolLayerV2Utils::encodePenCapStyle( pen.capStyle() ) );
QString capStyleString = evaluateDataDefinedProperty( QgsSymbolLayerV2::EXPR_CAPSTYLE, context, QVariant(), &ok ).toString();
if ( ok )
pen.setCapStyle( QgsSymbolLayerV2Utils::decodePenCapStyle( capStyleString ) );
}
}示例5: parse
bool MatchParser::parse()
{
QStringList::const_iterator it;
for (it = m_args.constBegin(); it != m_args.constEnd(); ++it)
{
if (!m_validOptions.contains(*it))
{
qWarning("Unknown option: \"%s\"", qPrintable(*it));
return false;
}
QString name = *it;
PrivateOption& option = m_validOptions[name];
QStringList list;
while (++it != m_args.constEnd())
{
if (it->size() > 1 && it->startsWith('-'))
{
bool ok = false;
it->toDouble(&ok);
if (!ok)
break;
}
list << *it;
}
--it;
if (!option.duplicates && contains(name))
{
qWarning("Multiple instances of option \"%s\"",
qPrintable(name));
return false;
}
if (list.size() < option.minArgs)
{
if (option.maxArgs == option.minArgs)
qWarning("Option \"%s\" needs %d argument(s)",
qPrintable(name), option.minArgs);
else
qWarning("Option \"%s\" needs at least %d argument(s)",
qPrintable(name), option.minArgs);
return false;
}
if (option.maxArgs != -1 && list.size() > option.maxArgs)
{
qWarning("Too many arguments for option \"%s\"",
qPrintable(name));
return false;
}
// Boolean option
if (list.isEmpty())
{
Option tmp = { name, QVariant(true) };
m_options.insert(option.priority, tmp);
continue;
}
QVariant value;
if (option.type == QVariant::StringList)
value.setValue(list);
else
value.setValue(list.join(" "));
if (!value.convert(option.type))
{
qWarning("Invalid value for option \"%s\": \"%s\"",
qPrintable(name),
qPrintable(list.join(" ")));
return false;
}
Option tmp = { name, value };
m_options.insert(option.priority, tmp);
}
return true;
}示例6: if
//.........这里部分代码省略.........
title( QgsProject::instance()->title() );
// get the manner in which the number of decimal places in the mouse
// position display is set (manual or automatic)
bool automaticPrecision = QgsProject::instance()->readBoolEntry( "PositionPrecision", "/Automatic" );
if ( automaticPrecision )
{
radAutomatic->setChecked( true );
}
else
{
radManual->setChecked( true );
}
int dp = QgsProject::instance()->readNumEntry( "PositionPrecision", "/DecimalPlaces" );
spinBoxDP->setValue( dp );
//get the colour selections and set the button colour accordingly
int myRedInt = QgsProject::instance()->readNumEntry( "Gui", "/SelectionColorRedPart", 255 );
int myGreenInt = QgsProject::instance()->readNumEntry( "Gui", "/SelectionColorGreenPart", 255 );
int myBlueInt = QgsProject::instance()->readNumEntry( "Gui", "/SelectionColorBluePart", 0 );
QColor myColour = QColor( myRedInt, myGreenInt, myBlueInt );
pbnSelectionColour->setColor( myColour );
//get the colour for map canvas background and set button colour accordingly (default white)
myRedInt = QgsProject::instance()->readNumEntry( "Gui", "/CanvasColorRedPart", 255 );
myGreenInt = QgsProject::instance()->readNumEntry( "Gui", "/CanvasColorGreenPart", 255 );
myBlueInt = QgsProject::instance()->readNumEntry( "Gui", "/CanvasColorBluePart", 255 );
myColour = QColor( myRedInt, myGreenInt, myBlueInt );
pbnCanvasColor->setColor( myColour );
//read the digitizing settings
int topologicalEditing = QgsProject::instance()->readNumEntry( "Digitizing", "/TopologicalEditing", 0 );
if ( topologicalEditing != 0 )
{
mEnableTopologicalEditingCheckBox->setCheckState( Qt::Checked );
}
else
{
mEnableTopologicalEditingCheckBox->setCheckState( Qt::Unchecked );
}
int avoidPolygonIntersections = QgsProject::instance()->readNumEntry( "Digitizing", "/AvoidPolygonIntersections", 0 );
if ( avoidPolygonIntersections != 0 )
{
mAvoidIntersectionsCheckBox->setCheckState( Qt::Checked );
}
else
{
mAvoidIntersectionsCheckBox->setCheckState( Qt::Unchecked );
}
bool ok;
QStringList layerIdList = QgsProject::instance()->readListEntry( "Digitizing", "/LayerSnappingList", &ok );
QStringList enabledList = QgsProject::instance()->readListEntry( "Digitizing", "/LayerSnappingEnabledList", &ok );
QStringList toleranceList = QgsProject::instance()->readListEntry( "Digitizing", "/LayerSnappingToleranceList", &ok );
QStringList snapToList = QgsProject::instance()->readListEntry( "Digitizing", "/LayerSnapToList", &ok );
QStringList::const_iterator idIter = layerIdList.constBegin();
QStringList::const_iterator enabledIter = enabledList.constBegin();
QStringList::const_iterator tolIter = toleranceList.constBegin();
QStringList::const_iterator snapToIter = snapToList.constBegin();
QgsMapLayer* currentLayer = 0;
//create the new layer entries
for ( ; idIter != layerIdList.constEnd(); ++idIter, ++enabledIter, ++tolIter, ++snapToIter )
{
currentLayer = QgsMapLayerRegistry::instance()->mapLayer( *idIter );
if ( currentLayer )
{
LayerEntry newEntry;
newEntry.layerName = currentLayer->name();
if (( *enabledIter ) == "enabled" )
{
newEntry.checked = true;
}
else
{
newEntry.checked = false;
}
if (( *snapToIter ) == "to_vertex" )
{
newEntry.snapTo = 0;
}
else if (( *snapToIter ) == "to_segment" )
{
newEntry.snapTo = 1;
}
else //to vertex and segment
{
newEntry.snapTo = 2;
}
newEntry.tolerance = tolIter->toDouble();
mSnappingLayerSettings.insert( *idIter, newEntry );
}
}
}