bool LocalMapLayer::isValidPerspective(const GeoDataLatLonBox &candidate) const
{
if (!mVisible || !mHasContent)
{ //any perspective is valid if no content is showing
return true;
}
GeoDataLatLonBox box = mLocalMapLogic->currentBox();
if (!candidate.contains(box) && !candidate.intersects(box))
{ //No relation - invalid perspective
return false;
}
//Acceptable scales
qreal d = diameter(box);
qreal zoomOutLimit = d * 4;
qreal zoomInLimit = d * 0.25;
qreal dCandidate = diameter(candidate);
if (dCandidate > zoomOutLimit || dCandidate < zoomInLimit)
{ //Box is too big or too small
return false;
}
return true;
}
void TestGeoDataLatLonAltBox::testDefaultConstruction()
{
GeoDataLatLonBox const latLonBox;
QCOMPARE( latLonBox.north(), 0.0 );
QCOMPARE( latLonBox.south(), 0.0 );
QCOMPARE( latLonBox.east(), 0.0 );
QCOMPARE( latLonBox.west(), 0.0 );
QCOMPARE( latLonBox.rotation(), 0.0 );
QCOMPARE( latLonBox.width(), 0.0 );
QCOMPARE( latLonBox.height(), 0.0 );
QVERIFY( !latLonBox.crossesDateLine() );
QCOMPARE( latLonBox.center(), GeoDataCoordinates( 0, 0 ) );
QVERIFY( latLonBox.isNull() );
QVERIFY( latLonBox.isEmpty() );
QVERIFY( (latLonBox|latLonBox).isNull() );
QVERIFY( (latLonBox|latLonBox).isEmpty() );
QVERIFY( !latLonBox.intersects( latLonBox ) );
GeoDataLatLonAltBox const latLonAltBox;
QCOMPARE( latLonAltBox.north(), 0.0 );
QCOMPARE( latLonAltBox.south(), 0.0 );
QCOMPARE( latLonAltBox.east(), 0.0 );
QCOMPARE( latLonAltBox.west(), 0.0 );
QCOMPARE( latLonAltBox.rotation(), 0.0 );
QCOMPARE( latLonAltBox.width(), 0.0 );
QCOMPARE( latLonAltBox.height(), 0.0 );
QVERIFY( !latLonAltBox.crossesDateLine() );
QCOMPARE( latLonAltBox.center(), GeoDataCoordinates( 0, 0, 0 ) );
QVERIFY( latLonAltBox.isNull() );
QVERIFY( latLonAltBox.isEmpty() );
QCOMPARE( latLonAltBox.minAltitude(), 0.0 );
QCOMPARE( latLonAltBox.maxAltitude(), 0.0 );
QCOMPARE( latLonAltBox.altitudeMode(), ClampToGround );
QVERIFY( (latLonAltBox|latLonAltBox).isNull() );
QVERIFY( (latLonAltBox|latLonAltBox).isEmpty() );
QVERIFY( !latLonAltBox.intersects( latLonAltBox ) );
}