void QgsMeasureDialog::mouseMove( const QgsPoint &point )
{
mLastMousePoint = point;
// show current distance/area while moving the point
// by creating a temporary copy of point array
// and adding moving point at the end
if ( mMeasureArea && mTool->points().size() >= 2 )
{
QList<QgsPoint> tmpPoints = mTool->points();
tmpPoints.append( point );
double area = mDa.measurePolygon( tmpPoints );
editTotal->setText( formatArea( area ) );
}
else if ( !mMeasureArea && mTool->points().size() >= 1 )
{
QgsPoint p1( mTool->points().last() ), p2( point );
double d = mDa.measureLine( p1, p2 );
editTotal->setText( formatDistance( mTotal + d ) );
d = convertLength( d, mDistanceUnits );
// Set moving
QTreeWidgetItem *item = mTable->topLevelItem( mTable->topLevelItemCount() - 1 );
if ( item )
{
item->setText( 0, QLocale::system().toString( d, 'f', mDecimalPlaces ) );
QgsDebugMsg( QString( "Final result is %1" ).arg( item->text( 0 ) ) );
}
}
}
Length StyleBuilderConverter::convertLengthSizing(StyleResolverState& state, CSSValue* value)
{
CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value);
switch (primitiveValue->getValueID()) {
case CSSValueInvalid:
return convertLength(state, value);
case CSSValueIntrinsic:
return Length(Intrinsic);
case CSSValueMinIntrinsic:
return Length(MinIntrinsic);
case CSSValueWebkitMinContent:
return Length(MinContent);
case CSSValueWebkitMaxContent:
return Length(MaxContent);
case CSSValueWebkitFillAvailable:
return Length(FillAvailable);
case CSSValueWebkitFitContent:
return Length(FitContent);
case CSSValueAuto:
return Length(Auto);
default:
ASSERT_NOT_REACHED();
return Length();
}
}
void QgsMeasureDialog::removeLastPoint()
{
int numPoints = mTool->points().size();
if ( mMeasureArea )
{
if ( numPoints > 1 )
{
QList<QgsPoint> tmpPoints = mTool->points();
tmpPoints.append( mLastMousePoint );
double area = mDa.measurePolygon( tmpPoints );
editTotal->setText( formatArea( area ) );
}
else
{
editTotal->setText( formatArea( 0 ) );
}
}
else if ( !mMeasureArea && numPoints >= 1 )
{
//remove final row
delete mTable->takeTopLevelItem( mTable->topLevelItemCount() - 1 );
QgsPoint p1( mTool->points().last() );
double d = mDa.measureLine( p1, mLastMousePoint );
mTotal = mDa.measureLine( mTool->points() );
editTotal->setText( formatDistance( mTotal + d ) );
d = convertLength( d, mDistanceUnits );
QTreeWidgetItem *item = mTable->topLevelItem( mTable->topLevelItemCount() - 1 );
item->setText( 0, QLocale::system().toString( d, 'f', mDecimalPlaces ) );
}
}
unsigned int LittleEndianDataRepresentation::convertBinary(const void* data, size_t dataLengthBytes, unsigned int dataLengthBits, void* convertedData, size_t convertedLengthBytes)
{
unsigned int ret = 0;
BitHelper::swapBytes(convertedData, convertedLengthBytes, data, dataLengthBytes, dataLengthBits);
ret = convertLength(dataLengthBits);
return ret;
}
QString QgsMeasureDialog::formatDistance( double distance, bool convertUnits ) const
{
QSettings settings;
bool baseUnit = settings.value( "/qgis/measure/keepbaseunit", true ).toBool();
if ( convertUnits )
distance = convertLength( distance, mDistanceUnits );
return QgsDistanceArea::formatDistance( distance, mDecimalPlaces, mDistanceUnits, baseUnit );
}
void GraphicsLayerAndroid::updateFixedPosition()
{
RenderLayer* renderLayer = renderLayerFromClient(m_client);
if (!renderLayer)
return;
RenderView* view = static_cast<RenderView*>(renderLayer->renderer());
if (!view)
return;
// We will need the Iframe flag in the LayerAndroid tree for fixed position
if (view->isRenderIFrame())
m_contentLayer->setIsIframe(true);
// If we are a fixed position layer, just set it
if (view->isPositioned() && view->style()->position() == FixedPosition) {
// We need to get the passed CSS properties for the element
SkLength left, top, right, bottom;
left = convertLength(view->style()->left());
top = convertLength(view->style()->top());
right = convertLength(view->style()->right());
bottom = convertLength(view->style()->bottom());
// We also need to get the margin...
SkLength marginLeft, marginTop, marginRight, marginBottom;
marginLeft = convertLength(view->style()->marginLeft());
marginTop = convertLength(view->style()->marginTop());
marginRight = convertLength(view->style()->marginRight());
marginBottom = convertLength(view->style()->marginBottom());
// In order to compute the fixed element's position, we need the width
// and height of the element when bottom or right is defined.
// And here we should use the non-overflowed value, that means, the
// overflowed content (e.g. outset shadow) will not be counted into the
// width and height.
int w = view->width();
int h = view->height();
int paintingOffsetX = - offsetFromRenderer().width();
int paintingOffsetY = - offsetFromRenderer().height();
SkRect viewRect;
viewRect.set(paintingOffsetX, paintingOffsetY, paintingOffsetX + w, paintingOffsetY + h);
IntPoint renderLayerPos(renderLayer->x(), renderLayer->y());
m_contentLayer->setFixedPosition(left, top, right, bottom,
marginLeft, marginTop,
marginRight, marginBottom,
renderLayerPos,
viewRect);
}
}
unsigned int LittleEndianDataRepresentation::convertNumeric(const void* data, size_t dataLengthBytes, unsigned int dataLengthBits, void* convertedData, size_t convertedLengthBytes)
{
unsigned int ret = 0;
#if __BYTE_ORDER == __LITTLE_ENDIAN
if (convertedLengthBytes >= dataLengthBytes)
{
memset(convertedData, 0x00, convertedLengthBytes);
memcpy(convertedData, data, dataLengthBytes);
}
ret = convertLength(dataLengthBits);
#else
BitHelper::swapBytes(convertedData, convertedLengthBytes, data, dataLengthBytes, dataLengthBits);
ret = convertLength(dataLengthBits);
#endif
return ret;
}
QString QgsMeasureDialog::formatDistance( double distance, bool convertUnits ) const
{
QgsSettings settings;
bool baseUnit = settings.value( QStringLiteral( "qgis/measure/keepbaseunit" ), true ).toBool();
if ( convertUnits )
distance = convertLength( distance, mDistanceUnits );
int decimals = mDecimalPlaces;
if ( mDistanceUnits == QgsUnitTypes::DistanceDegrees && distance < 1 )
{
// special handling for degrees - because we can't use smaller units (eg m->mm), we need to make sure there's
// enough decimal places to show a usable measurement value
int minPlaces = std::round( std::log10( 1.0 / distance ) ) + 1;
decimals = std::max( decimals, minPlaces );
}
return QgsDistanceArea::formatDistance( distance, decimals, mDistanceUnits, baseUnit );
}
void QgsMeasureDialog::updateUi()
{
// Set tooltip to indicate how we calculate measurments
QString toolTip = tr( "The calculations are based on:" );
bool forceCartesian = false;
bool convertToDisplayUnits = true;
if ( mMeasureArea )
{
if ( mTool->canvas()->mapSettings().destinationCrs().mapUnits() == QgsUnitTypes::DistanceDegrees
&& ( mAreaUnits == QgsUnitTypes::AreaSquareDegrees || mAreaUnits == QgsUnitTypes::AreaUnknownUnit ) )
{
//both source and destination units are degrees
toolTip += "<br> * " + tr( "Both project CRS (%1) and measured area are in degrees, so area is calculated using cartesian calculations in square degrees." ).arg(
mTool->canvas()->mapSettings().destinationCrs().description() );
forceCartesian = true;
convertToDisplayUnits = false; //not required since we will be measuring in degrees
}
else
{
QgsUnitTypes::AreaUnit resultUnit = QgsUnitTypes::AreaUnknownUnit;
if ( ! mTool->canvas()->hasCrsTransformEnabled() )
{
resultUnit = QgsUnitTypes::distanceToAreaUnit( mTool->canvas()->mapSettings().destinationCrs().mapUnits() );
toolTip += "<br> * " + tr( "Project CRS transformation is turned off." ) + ' ';
toolTip += tr( "Area is calculated in %1, based on project CRS (%2)." ).arg( QgsUnitTypes::toString( resultUnit ),
mTool->canvas()->mapSettings().destinationCrs().description() );
toolTip += "<br> * " + tr( "Ellipsoidal calculation is not possible with CRS transformation disabled." );
setWindowTitle( tr( "Measure (OTF off)" ) );
}
else
{
if ( mDa.willUseEllipsoid() )
{
resultUnit = QgsUnitTypes::AreaSquareMeters;
toolTip += "<br> * " + tr( "Project CRS transformation is turned on and ellipsoidal calculation is selected." ) + ' ';
toolTip += "<br> * " + tr( "The coordinates are transformed to the chosen ellipsoid (%1), and the area is calculated in %2." ).arg( mDa.ellipsoid(),
QgsUnitTypes::toString( resultUnit ) );
}
else
{
resultUnit = QgsUnitTypes::distanceToAreaUnit( mTool->canvas()->mapSettings().destinationCrs().mapUnits() );
toolTip += "<br> * " + tr( "Project CRS transformation is turned on but ellipsoidal calculation is not selected." ) + ' ';
toolTip += tr( "Area is calculated in %1, based on project CRS (%2)." ).arg( QgsUnitTypes::toString( resultUnit ),
mTool->canvas()->mapSettings().destinationCrs().description() );
}
setWindowTitle( tr( "Measure (OTF on)" ) );
}
if ( QgsUnitTypes::unitType( resultUnit ) == QgsUnitTypes::Geographic &&
QgsUnitTypes::unitType( mAreaUnits ) == QgsUnitTypes::Standard )
{
toolTip += "<br> * Area is roughly converted to square meters by using scale at equator (1 degree = 111319.49 meters).";
resultUnit = QgsUnitTypes::AreaSquareMeters;
}
else if ( QgsUnitTypes::unitType( resultUnit ) == QgsUnitTypes::Standard &&
QgsUnitTypes::unitType( mAreaUnits ) == QgsUnitTypes::Geographic )
{
toolTip += "<br> * Area is roughly converted to square degrees by using scale at equator (1 degree = 111319.49 meters).";
resultUnit = QgsUnitTypes::AreaSquareDegrees;
}
if ( resultUnit != mAreaUnits )
{
if ( QgsUnitTypes::unitType( resultUnit ) == QgsUnitTypes::Standard &&
QgsUnitTypes::unitType( mAreaUnits ) == QgsUnitTypes::Standard )
{
// only shown if both conditions are true:
// - the display unit is a standard distance measurement (eg square feet)
// - either the canvas units is also a standard distance OR we are using an ellipsoid (in which case the
// value will be in square meters)
toolTip += "<br> * " + tr( "The value is converted from %1 to %2." ).arg( QgsUnitTypes::toString( resultUnit ),
QgsUnitTypes::toString( mAreaUnits ) );
}
else
{
//should not be possible!
}
}
}
}
else
{
if ( mTool->canvas()->mapSettings().destinationCrs().mapUnits() == QgsUnitTypes::DistanceDegrees
&& mDistanceUnits == QgsUnitTypes::DistanceDegrees )
{
//both source and destination units are degrees
toolTip += "<br> * " + tr( "Both project CRS (%1) and measured length are in degrees, so distance is calculated using cartesian calculations in degrees." ).arg(
mTool->canvas()->mapSettings().destinationCrs().description() );
forceCartesian = true;
convertToDisplayUnits = false; //not required since we will be measuring in degrees
}
else
{
QgsUnitTypes::DistanceUnit resultUnit = QgsUnitTypes::DistanceUnknownUnit;
if ( ! mTool->canvas()->hasCrsTransformEnabled() )
{
resultUnit = mTool->canvas()->mapSettings().destinationCrs().mapUnits();
toolTip += "<br> * " + tr( "Project CRS transformation is turned off." ) + ' ';
toolTip += tr( "Distance is calculated in %1, based on project CRS (%2)." ).arg( QgsUnitTypes::toString( resultUnit ),
mTool->canvas()->mapSettings().destinationCrs().description() );
toolTip += "<br> * " + tr( "Ellipsoidal calculation is not possible with CRS transformation disabled." );
setWindowTitle( tr( "Measure (OTF off)" ) );
}
else
{
if ( mDa.willUseEllipsoid() )
{
resultUnit = QgsUnitTypes::DistanceMeters;
toolTip += "<br> * " + tr( "Project CRS transformation is turned on and ellipsoidal calculation is selected." ) + ' ';
toolTip += "<br> * " + tr( "The coordinates are transformed to the chosen ellipsoid (%1), and the distance is calculated in %2." ).arg( mDa.ellipsoid(),
QgsUnitTypes::toString( resultUnit ) );
}
else
{
resultUnit = mTool->canvas()->mapSettings().destinationCrs().mapUnits();
toolTip += "<br> * " + tr( "Project CRS transformation is turned on but ellipsoidal calculation is not selected." ) + ' ';
toolTip += tr( "Distance is calculated in %1, based on project CRS (%2)." ).arg( QgsUnitTypes::toString( resultUnit ),
mTool->canvas()->mapSettings().destinationCrs().description() );
}
setWindowTitle( tr( "Measure (OTF on)" ) );
}
if ( QgsUnitTypes::unitType( resultUnit ) == QgsUnitTypes::Geographic &&
QgsUnitTypes::unitType( mDistanceUnits ) == QgsUnitTypes::Standard )
{
toolTip += "<br> * Distance is roughly converted to meters by using scale at equator (1 degree = 111319.49 meters).";
resultUnit = QgsUnitTypes::DistanceMeters;
}
else if ( QgsUnitTypes::unitType( resultUnit ) == QgsUnitTypes::Standard &&
QgsUnitTypes::unitType( mDistanceUnits ) == QgsUnitTypes::Geographic )
{
toolTip += "<br> * Distance is roughly converted to degrees by using scale at equator (1 degree = 111319.49 meters).";
resultUnit = QgsUnitTypes::DistanceDegrees;
}
if ( resultUnit != mDistanceUnits )
{
if ( QgsUnitTypes::unitType( resultUnit ) == QgsUnitTypes::Standard &&
QgsUnitTypes::unitType( mDistanceUnits ) == QgsUnitTypes::Standard )
{
// only shown if both conditions are true:
// - the display unit is a standard distance measurement (eg feet)
// - either the canvas units is also a standard distance OR we are using an ellipsoid (in which case the
// value will be in meters)
toolTip += "<br> * " + tr( "The value is converted from %1 to %2." ).arg( QgsUnitTypes::toString( resultUnit ),
QgsUnitTypes::toString( mDistanceUnits ) );
}
else
{
//should not be possible!
}
}
}
}
editTotal->setToolTip( toolTip );
mTable->setToolTip( toolTip );
mNotesLabel->setText( toolTip );
if ( mMeasureArea )
{
mUnitsCombo->setCurrentIndex( mUnitsCombo->findData( mAreaUnits ) );
}
else
{
mUnitsCombo->setCurrentIndex( mUnitsCombo->findData( mDistanceUnits ) );
mTable->setHeaderLabels( QStringList( tr( "Segments [%1]" ).arg( QgsUnitTypes::toString( mDistanceUnits ) ) ) );
}
if ( mMeasureArea )
{
double area = 0.0;
if ( mTool->points().size() > 1 )
{
area = mDa.measurePolygon( mTool->points() );
}
mTable->hide(); // Hide the table, only show summary.
editTotal->setText( formatArea( area ) );
}
else
{
QList<QgsPoint>::const_iterator it;
bool b = true; // first point
QgsPoint p1, p2;
mTotal = 0;
for ( it = mTool->points().constBegin(); it != mTool->points().constEnd(); ++it )
{
p2 = *it;
if ( !b )
{
double d = -1;
if ( forceCartesian )
{
//cartesian calculation forced
d = sqrt( p2.sqrDist( p1 ) );
mTotal += d;
}
else
{
d = mDa.measureLine( p1, p2 );
d = convertLength( d, mDistanceUnits );
}
QTreeWidgetItem *item = new QTreeWidgetItem( QStringList( QLocale::system().toString( d, 'f', mDecimalPlaces ) ) );
item->setTextAlignment( 0, Qt::AlignRight );
mTable->addTopLevelItem( item );
mTable->scrollToItem( item );
}
p1 = p2;
b = false;
}
if ( !forceCartesian )
mTotal = mDa.measureLine( mTool->points() );
mTable->show(); // Show the table with items
editTotal->setText( formatDistance( mTotal, convertToDisplayUnits ) );
}
}
