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Not working, but soon

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homann committed Sep 4, 2012
1 parent ad2ff90 commit c5235116bf700b6664fa3dc271ba37ee559c0739
Showing with 119 additions and 116 deletions.
  1. +99 −112 src/app/qgsmeasuredialog.cpp
  2. +20 −4 src/app/qgsmeasuredialog.h
@@ -48,32 +48,73 @@ QgsMeasureDialog::QgsMeasureDialog( QgsMeasureTool* tool, Qt::WFlags f )
item->setTextAlignment( 0, Qt::AlignRight );
mTable->addTopLevelItem( item );

//mTable->setHeaderLabels(QStringList() << tr("Segments (in meters)") << tr("Total") << tr("Azimuth") );
// Update when the ellipsoidal button has changed state.
connect( mcbProjectionEnabled, SIGNAL( stateChanged( int ) ),
this, SLOT( ellipsoidalButton() ) );
// Update whenever the canvas has refreshed. Maybe more often than needed,
// but at least every time any canvas related settings changes
connect( mTool->canvas(), SIGNAL( mapCanvasRefreshed() ),
this, SLOT( updateSettings() ) );
// // Update when project wide transformation has changed
// connect( mTool->canvas()->mapRenderer(), SIGNAL( hasCrsTransformEnabled( bool ) ),
// this, SLOT( changeProjectionEnabledState() ) );
// // Update when project CRS has changed
// connect( mTool->canvas()->mapRenderer(), SIGNAL( destinationSrsChanged() ),
// this, SLOT( changeProjectionEnabledState() ) );

updateSettings();
}

void QgsMeasureDialog::ellipsoidalButton()
{
QSettings settings;

if ( mcbProjectionEnabled->isChecked() )
{
settings.setValue( "/qgis/measure/projectionEnabled", 2 );
}
else
{
settings.setValue( "/qgis/measure/projectionEnabled", 0 );
}
updateSettings();
}

void QgsMeasureDialog::updateSettings()
{
QSettings settings;

int s = settings.value( "/qgis/measure/projectionEnabled", "2" ).toInt();
if ( s == 2 )
mcbProjectionEnabled->setCheckState( Qt::Checked );
{
mEllipsoidal = true;
}
else
mcbProjectionEnabled->setCheckState( Qt::Unchecked );
{
mEllipsoidal = false;
}

// Update when the ellipsoidal button has changed state.
connect( mcbProjectionEnabled, SIGNAL( stateChanged( int ) ),
this, SLOT( changeProjectionEnabledState() ) );
// Update whenever the canvas has refreshed. Maybe more often than needed,
// but at least every time any settings changes
connect( mTool->canvas(), SIGNAL( mapCanvasRefreshed() ),
this, SLOT( changeProjectionEnabledState() ) );
// Update when project wide transformation has changed
connect( mTool->canvas()->mapRenderer(), SIGNAL( hasCrsTransformEnabled( bool ) ),
this, SLOT( changeProjectionEnabledState() ) );
// Update when project CRS has changed
connect( mTool->canvas()->mapRenderer(), SIGNAL( destinationSrsChanged() ),
this, SLOT( changeProjectionEnabledState() ) );
mDecimalPlaces = settings.value( "/qgis/measure/decimalplaces", "3" ).toInt();
mCanvasUnits = mTool->canvas()->mapUnits();
mDisplayUnits = QGis::fromLiteral( settings.value( "/qgis/measure/displayunits", QGis::toLiteral( QGis::Meters ) ).toString() );

QgsDebugMsg( "****************" );
QgsDebugMsg( QString( "Ellipsoidal: %1" ).arg( mEllipsoidal ? "true" : "false" ) );
QgsDebugMsg( QString( "Decimalpla.: %1" ).arg( mDecimalPlaces ) );
QgsDebugMsg( QString( "Display u. : %1" ).arg( QGis::toLiteral( mDisplayUnits ) ) );
QgsDebugMsg( QString( "Canvas u. : %1" ).arg( QGis::toLiteral( mCanvasUnits ) ) );

configureDistanceArea();

// clear interface
mTable->clear();
QTreeWidgetItem* item = new QTreeWidgetItem( QStringList( QString::number( 0, 'f', 1 ) ) );
item->setTextAlignment( 0, Qt::AlignRight );
mTable->addTopLevelItem( item );
mTotal = 0;
updateUi();
}

}

void QgsMeasureDialog::restart()
{
@@ -86,7 +127,6 @@ void QgsMeasureDialog::restart()
item->setTextAlignment( 0, Qt::AlignRight );
mTable->addTopLevelItem( item );
mTotal = 0.;

updateUi();
}

@@ -105,9 +145,6 @@ void QgsMeasureDialog::mousePress( QgsPoint &point )

void QgsMeasureDialog::mouseMove( QgsPoint &point )
{
QSettings settings;
int decimalPlaces = settings.value( "/qgis/measure/decimalplaces", "3" ).toInt();

// show current distance/area while moving the point
// by creating a temporary copy of point array
// and adding moving point at the end
@@ -116,19 +153,19 @@ void QgsMeasureDialog::mouseMove( QgsPoint &point )
QList<QgsPoint> tmpPoints = mTool->points();
tmpPoints.append( point );
double area = mDa.measurePolygon( tmpPoints );
editTotal->setText( formatArea( area, decimalPlaces ) );
editTotal->setText( formatArea( area ) );
}
else if ( !mMeasureArea && mTool->points().size() > 0 )
{
QgsPoint p1( mTool->points().last() ), p2( point );

double d = mDa.measureLine( p1, p2 );
editTotal->setText( formatDistance( mTotal + d, decimalPlaces ) );
editTotal->setText( formatDistance( mTotal + d ) );
QGis::UnitType myDisplayUnits;
// Ignore units
convertMeasurement( d, myDisplayUnits, false );
QTreeWidgetItem *item = mTable->topLevelItem( mTable->topLevelItemCount() - 1 );
item->setText( 0, QLocale::system().toString( d, 'f', decimalPlaces ) );
item->setText( 0, QLocale::system().toString( d, 'f', mDecimalPlaces ) );
QgsDebugMsg( QString( "Final result is %1" ).arg( item->text( 0 ) ) );
}
}
@@ -137,14 +174,11 @@ void QgsMeasureDialog::addPoint( QgsPoint &p )
{
Q_UNUSED( p );

QSettings settings;
int decimalPlaces = settings.value( "/qgis/measure/decimalplaces", "3" ).toInt();

int numPoints = mTool->points().size();
if ( mMeasureArea && numPoints > 2 )
{
double area = mDa.measurePolygon( mTool->points() );
editTotal->setText( formatArea( area, decimalPlaces ) );
editTotal->setText( formatArea( area ) );
}
else if ( !mMeasureArea && numPoints > 1 )
{
@@ -155,16 +189,16 @@ void QgsMeasureDialog::addPoint( QgsPoint &p )
double d = mDa.measureLine( p1, p2 );

mTotal += d;
editTotal->setText( formatDistance( mTotal, decimalPlaces ) );
editTotal->setText( formatDistance( mTotal ) );

QGis::UnitType myDisplayUnits;
// Ignore units
convertMeasurement( d, myDisplayUnits, false );

QTreeWidgetItem *item = mTable->topLevelItem( mTable->topLevelItemCount() - 1 );
item->setText( 0, QLocale::system().toString( d, 'f', decimalPlaces ) );
item->setText( 0, QLocale::system().toString( d, 'f' ) );

item = new QTreeWidgetItem( QStringList( QLocale::system().toString( 0.0, 'f', decimalPlaces ) ) );
item = new QTreeWidgetItem( QStringList( QLocale::system().toString( 0.0, 'f' ) ) );
item->setTextAlignment( 0, Qt::AlignRight );
mTable->addTopLevelItem( item );
mTable->scrollToItem( item );
@@ -204,44 +238,38 @@ void QgsMeasureDialog::saveWindowLocation()
settings.setValue( key, height() );
}

QString QgsMeasureDialog::formatDistance( double distance, int decimalPlaces )
QString QgsMeasureDialog::formatDistance( double distance )
{
QSettings settings;
bool baseUnit = settings.value( "/qgis/measure/keepbaseunit", false ).toBool();

QGis::UnitType myDisplayUnits;
convertMeasurement( distance, myDisplayUnits, false );
return QgsDistanceArea::textUnit( distance, decimalPlaces, myDisplayUnits, false, baseUnit );
QGis::UnitType newDisplayUnits;
convertMeasurement( distance, newDisplayUnits, false );
return QgsDistanceArea::textUnit( distance, mDecimalPlaces, newDisplayUnits, false, baseUnit );
}

QString QgsMeasureDialog::formatArea( double area, int decimalPlaces )
QString QgsMeasureDialog::formatArea( double area )
{
QSettings settings;
bool baseUnit = settings.value( "/qgis/measure/keepbaseunit", false ).toBool();

QGis::UnitType myDisplayUnits;
convertMeasurement( area, myDisplayUnits, true );
return QgsDistanceArea::textUnit( area, decimalPlaces, myDisplayUnits, true, baseUnit );
QGis::UnitType newDisplayUnits;
convertMeasurement( area, newDisplayUnits, true );
return QgsDistanceArea::textUnit( area, mDecimalPlaces, newDisplayUnits, true, baseUnit );
}

void QgsMeasureDialog::updateUi()
{
// Only enable checkbox when project wide transformation is on
// If project wide transformation is off, disbale checkbox and unmark it.
// When on, enable checbox and mark with saved value.
mcbProjectionEnabled->setEnabled( mTool->canvas()->hasCrsTransformEnabled() );

configureDistanceArea();

QSettings settings;

// Set tooltip to indicate how we calculate measurments
QGis::UnitType mapUnits = mTool->canvas()->mapUnits();
QGis::UnitType displayUnits = QGis::fromLiteral( settings.value( "/qgis/measure/displayunits", QGis::toLiteral( QGis::Meters ) ).toString() );

QString toolTip = tr( "The calculations are based on:" );
if ( ! mTool->canvas()->hasCrsTransformEnabled() )
{
toolTip += "<br> * " + tr( "Project CRS transformation is turned off." ) + " ";
toolTip += tr( "Canvas units setting is taken from project properties setting (%1)." ).arg( QGis::tr( mapUnits ) );
toolTip += tr( "Canvas units setting is taken from project properties setting (%1)." ).arg( QGis::tr( mCanvasUnits ) );
toolTip += "<br> * " + tr( "Ellipsoidal calculation is not possible, as project CRS is undefined." );
}
else
@@ -254,74 +282,19 @@ void QgsMeasureDialog::updateUi()
else
{
toolTip += "<br> * " + tr( "Project CRS transformation is turned on but ellipsoidal calculation is not selected." );
toolTip += "<br> * " + tr( "The canvas units setting is taken from the project CRS (%1)." ).arg( QGis::tr( mapUnits ) );
toolTip += "<br> * " + tr( "The canvas units setting is taken from the project CRS (%1)." ).arg( QGis::tr( mCanvasUnits ) );
}
}

if (( mapUnits == QGis::Meters && displayUnits == QGis::Feet ) || ( mapUnits == QGis::Feet && displayUnits == QGis::Meters ) )
if (( mCanvasUnits == QGis::Meters && mDisplayUnits == QGis::Feet ) || ( mCanvasUnits == QGis::Feet && mDisplayUnits == QGis::Meters ) )
{
toolTip += "<br> * " + tr( "Finally, the value is converted from %2 to %3." ).arg( QGis::tr( mapUnits ) ).arg( QGis::tr( displayUnits ) );
toolTip += "<br> * " + tr( "Finally, the value is converted from %2 to %3." ).arg( QGis::tr( mCanvasUnits ) ).arg( QGis::tr( mDisplayUnits ) );
}

editTotal->setToolTip( toolTip );
mTable->setToolTip( toolTip );

int decimalPlaces = settings.value( "/qgis/measure/decimalplaces", "3" ).toInt();

mTable->setHeaderLabels( QStringList( tr( "Segments [%1]" ).arg( QGis::tr( displayUnits ) ) ) );

if ( mMeasureArea )
{
mTable->hide();
editTotal->setText( formatArea( 0, decimalPlaces ) );
}
else
{
mTable->show();
editTotal->setText( formatDistance( 0, decimalPlaces ) );
}
}

void QgsMeasureDialog::convertMeasurement( double &measure, QGis::UnitType &u, bool isArea )
{
// Helper for converting between meters and feet
// The parameter &u is out only...

// Get the canvas units
QGis::UnitType myUnits = mTool->canvas()->mapUnits();

// Get the units for display
QSettings settings;
QGis::UnitType displayUnits = QGis::fromLiteral( settings.value( "/qgis/measure/displayunits", QGis::toLiteral( QGis::Meters ) ).toString() );

QgsDebugMsg( QString( "Preferred display units are %1" ).arg( QGis::toLiteral( displayUnits ) ) );

mDa.convertMeasurement( measure, myUnits, displayUnits, isArea );
u = myUnits;
}

void QgsMeasureDialog::changeProjectionEnabledState()
{
// store value
QSettings settings;
if ( mcbProjectionEnabled->isChecked() )
{
settings.setValue( "/qgis/measure/projectionEnabled", 2 );
}
else
{
settings.setValue( "/qgis/measure/projectionEnabled", 0 );
}

// clear interface
mTable->clear();
QTreeWidgetItem* item = new QTreeWidgetItem( QStringList( QString::number( 0, 'f', 1 ) ) );
item->setTextAlignment( 0, Qt::AlignRight );
mTable->addTopLevelItem( item );
mTotal = 0;
updateUi();

int decimalPlaces = settings.value( "/qgis/measure/decimalplaces", "3" ).toInt();
mTable->setHeaderLabels( QStringList( tr( "Segments [%1]" ).arg( QGis::tr( mDisplayUnits ) ) ) );

if ( mMeasureArea )
{
@@ -330,7 +303,7 @@ void QgsMeasureDialog::changeProjectionEnabledState()
{
area = mDa.measurePolygon( mTool->points() );
}
editTotal->setText( formatArea( area, decimalPlaces ) );
editTotal->setText( formatArea( area ) );
}
else
{
@@ -346,14 +319,14 @@ void QgsMeasureDialog::changeProjectionEnabledState()
{
double d = mDa.measureLine( p1, p2 );
mTotal += d;
editTotal->setText( formatDistance( mTotal, decimalPlaces ) );
editTotal->setText( formatDistance( mTotal ) );
QGis::UnitType myDisplayUnits;

convertMeasurement( d, myDisplayUnits, false );

QTreeWidgetItem *item = mTable->topLevelItem( mTable->topLevelItemCount() - 1 );
item->setText( 0, QLocale::system().toString( d, 'f', decimalPlaces ) );
item = new QTreeWidgetItem( QStringList( QLocale::system().toString( 0.0, 'f', decimalPlaces ) ) );
item->setText( 0, QLocale::system().toString( d, 'f' ) );
item = new QTreeWidgetItem( QStringList( QLocale::system().toString( 0.0, 'f', mDecimalPlaces ) ) );
item->setTextAlignment( 0, Qt::AlignRight );
mTable->addTopLevelItem( item );
mTable->scrollToItem( item );
@@ -364,12 +337,26 @@ void QgsMeasureDialog::changeProjectionEnabledState()
}
}

void QgsMeasureDialog::convertMeasurement( double &measure, QGis::UnitType &u, bool isArea )
{
// Helper for converting between meters and feet
// The parameter &u is out only...

// Get the canvas units
QGis::UnitType myUnits = mCanvasUnits;

QgsDebugMsg( QString( "Preferred display units are %1" ).arg( QGis::toLiteral( mDisplayUnits ) ) );

mDa.convertMeasurement( measure, myUnits, mDisplayUnits, isArea );
u = myUnits;
}

void QgsMeasureDialog::configureDistanceArea()
{
QSettings settings;
QString ellipsoidId = settings.value( "/qgis/measure/ellipsoid", "WGS84" ).toString();
mDa.setSourceCrs( mTool->canvas()->mapRenderer()->destinationCrs().srsid() );
mDa.setEllipsoid( ellipsoidId );
// Only use ellipsoidal calculation when project wide transformation is enabled.
mDa.setEllipsoidalMode( mcbProjectionEnabled->isChecked() && mTool->canvas()->hasCrsTransformEnabled() );
mDa.setEllipsoidalMode( mEllipsoidal && mTool->canvas()->hasCrsTransformEnabled() );
}

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