void QgsMapToolRotatePointSymbols::canvasReleaseEvent( QgsMapMouseEvent* e )
{
Q_UNUSED( e );
if ( mRotating && mActiveLayer )
{
mActiveLayer->beginEditCommand( tr( "Rotate symbol" ) );
bool rotateSuccess = true;
//write mCurrentRotationFeature to all rotation attributes of feature (mFeatureNumber)
int rotation;
if ( mCtrlPressed ) //round to 15 degrees
{
rotation = roundTo15Degrees( mCurrentRotationFeature );
}
else
{
rotation = ( int )mCurrentRotationFeature;
}
QSet<int>::const_iterator it = mCurrentRotationAttributes.constBegin();
for ( ; it != mCurrentRotationAttributes.constEnd(); ++it )
{
if ( !mActiveLayer->changeAttributeValue( mFeatureNumber, *it, rotation ) )
{
rotateSuccess = false;
}
}
if ( rotateSuccess )
{
mActiveLayer->endEditCommand();
}
else
{
mActiveLayer->destroyEditCommand();
}
}
mRotating = false;
delete mRotationItem;
mRotationItem = nullptr;
if ( mActiveLayer )
mActiveLayer->triggerRepaint();
}
void QgsMapToolRotatePointSymbols::canvasMoveEvent( QgsMapMouseEvent* e )
{
if ( !mRotating )
{
return;
}
double azimut = calculateAzimut( e->pos() );
double azimutDiff = azimut - mCurrentMouseAzimut;
//assign new feature rotation, making sure to respect the 0 - 360 degree range
mCurrentRotationFeature += azimutDiff;
if ( mCurrentRotationFeature < 0 )
{
mCurrentRotationFeature = 360 - mCurrentRotationFeature;
}
else if ( mCurrentRotationFeature >= 360 )
{
mCurrentRotationFeature -= 360;
}
mCurrentMouseAzimut = azimut;
if ( mCurrentMouseAzimut < 0 )
{
mCurrentMouseAzimut = 360 - mCurrentMouseAzimut;
}
else if ( mCurrentMouseAzimut >= 360 )
{
mCurrentMouseAzimut -= 360;
}
//if shift-modifier is pressed, round to 15 degrees
int displayValue;
if ( e->modifiers() & Qt::ControlModifier )
{
displayValue = roundTo15Degrees( mCurrentRotationFeature );
mCtrlPressed = true;
}
else
{
displayValue = ( int )( mCurrentRotationFeature );
mCtrlPressed = false;
}
setPixmapItemRotation( displayValue );
}
void QgsMapToolRotateLabel::canvasReleaseEvent( QgsMapMouseEvent* e )
{
Q_UNUSED( e );
if ( !mLabelRubberBand ) //no rubber band created (most likely because the current label cannot be rotated )
{
return;
}
deleteRubberBands();
delete mRotationItem;
mRotationItem = nullptr;
delete mRotationPreviewBox;
mRotationPreviewBox = nullptr;
QgsVectorLayer* vlayer = mCurrentLabel.layer;
if ( !vlayer )
{
return;
}
int rotationCol;
if ( !labelIsRotatable( vlayer, mCurrentLabel.settings, rotationCol ) )
{
return;
}
double rotation = mCtrlPressed ? roundTo15Degrees( mCurrentRotation ) : mCurrentRotation;
if ( rotation == mStartRotation ) //mouse button pressed / released, but no rotation
{
return;
}
vlayer->beginEditCommand( tr( "Rotated label" ) + QString( " '%1'" ).arg( currentLabelText( 24 ) ) );
vlayer->changeAttributeValue( mCurrentLabel.pos.featureId, rotationCol, rotation );
vlayer->endEditCommand();
vlayer->triggerRepaint();
}
void QgsMapToolRotateLabel::canvasMoveEvent( QgsMapMouseEvent *e )
{
if ( mLabelRubberBand )
{
QgsPointXY currentPoint = toMapCoordinates( e->pos() );
double azimuth = convertAzimuth( mRotationPoint.azimuth( currentPoint ) );
double azimuthDiff = azimuth - mCurrentMouseAzimuth;
azimuthDiff = azimuthDiff > 180 ? azimuthDiff - 360 : azimuthDiff;
mCurrentRotation += azimuthDiff;
if ( mCurrentRotation >= 360 || mCurrentRotation <= -360 )
mCurrentRotation = std::fmod( mCurrentRotation, 360.0 );
if ( mCurrentRotation < 0 )
mCurrentRotation += 360.0;
mCurrentMouseAzimuth = std::fmod( azimuth, 360.0 );
//if shift-modifier is pressed, round to 15 degrees
int displayValue;
if ( e->modifiers() & Qt::ControlModifier )
{
displayValue = roundTo15Degrees( mCurrentRotation );
mCtrlPressed = true;
}
else
{
displayValue = ( int )( mCurrentRotation );
mCtrlPressed = false;
}
if ( mRotationItem )
{
mRotationItem->setSymbolRotation( displayValue );
setRotationPreviewBox( displayValue - mStartRotation );
mRotationItem->update();
}
}
}
void QgsMapToolRotateLabel::canvasMoveEvent( QgsMapMouseEvent* e )
{
if ( mLabelRubberBand )
{
QgsPoint currentPoint = toMapCoordinates( e->pos() );
double azimuth = azimuthToCCW( mRotationPoint.azimuth( currentPoint ) );
double azimuthDiff = azimuth - mCurrentMouseAzimuth;
azimuthDiff = azimuthDiff > 180 ? azimuthDiff - 360 : azimuthDiff;
mCurrentRotation += azimuthDiff;
mCurrentRotation = mCurrentRotation - static_cast<float>( static_cast<int>( mCurrentRotation / 360 ) ) * 360; //mCurrentRotation % 360;
mCurrentRotation = mCurrentRotation < 0 ? 360 - mCurrentRotation : mCurrentRotation;
mCurrentMouseAzimuth = azimuth - static_cast<float>( static_cast<int>( azimuth / 360 ) ) * 360;
//if shift-modifier is pressed, round to 15 degrees
int displayValue;
if ( e->modifiers() & Qt::ControlModifier )
{
displayValue = roundTo15Degrees( mCurrentRotation );
mCtrlPressed = true;
}
else
{
displayValue = ( int )( mCurrentRotation );
mCtrlPressed = false;
}
if ( mRotationItem )
{
mRotationItem->setSymbolRotation( displayValue );
setRotationPreviewBox( displayValue - mStartRotation );
mRotationItem->update();
}
}
}
