bool ApplyScale(m2::PointD const & pixelScaleCenter, double factor, ScreenBase & screen)
{
m2::PointD const globalScaleCenter = screen.PtoG(screen.P3dtoP(pixelScaleCenter));
ScreenBase tmp = screen;
tmp.Scale(factor);
tmp.MatchGandP3d(globalScaleCenter, pixelScaleCenter);
if (!CheckMinScale(tmp))
return false;
m2::RectD const & worldR = df::GetWorldRect();
if (!CheckBorders(tmp))
{
if (CanShrinkInto(tmp, worldR))
tmp = ShrinkInto(tmp, worldR);
else
return false;
}
if (!CheckMaxScale(tmp))
return false;
// re-checking the borders, as we might violate them a bit (don't know why).
if (!CheckBorders(tmp))
tmp = ScaleInto(tmp, worldR);
screen = tmp;
return true;
}
drape_ptr<SequenceAnimation> GetPrettyFollowAnimation(ScreenBase const & startScreen, m2::PointD const & userPos, double targetScale,
double targetAngle, m2::PointD const & endPixelPos)
{
auto sequenceAnim = make_unique_dp<SequenceAnimation>();
sequenceAnim->SetCustomType(kPrettyFollowAnim);
m2::RectD const viewportRect = startScreen.PixelRectIn3d();
ScreenBase tmp = startScreen;
tmp.SetAngle(targetAngle);
tmp.MatchGandP3d(userPos, viewportRect.Center());
double const moveDuration = PositionInterpolator::GetMoveDuration(startScreen.GetOrg(), tmp.GetOrg(), startScreen);
ASSERT_GREATER(moveDuration, 0.0, ());
double const scaleFactor = moveDuration / kMaxAnimationTimeSec * 2.0;
tmp = startScreen;
if (moveDuration > 0.0)
{
tmp.SetScale(startScreen.GetScale() * scaleFactor);
auto zoomOutAnim = make_unique_dp<MapLinearAnimation>();
zoomOutAnim->SetScale(startScreen.GetScale(), tmp.GetScale());
zoomOutAnim->SetMaxDuration(kMaxAnimationTimeSec * 0.5);
sequenceAnim->AddAnimation(move(zoomOutAnim));
tmp.MatchGandP3d(userPos, viewportRect.Center());
auto moveAnim = make_unique_dp<MapLinearAnimation>();
moveAnim->SetMove(startScreen.GetOrg(), tmp.GetOrg(), viewportRect, tmp.GetScale());
moveAnim->SetMaxDuration(kMaxAnimationTimeSec);
sequenceAnim->AddAnimation(move(moveAnim));
}
auto followAnim = make_unique_dp<MapFollowAnimation>(tmp, userPos, endPixelPos,
tmp.GetScale(), targetScale,
tmp.GetAngle(), targetAngle,
false /* isAutoZoom */);
followAnim->SetMaxDuration(kMaxAnimationTimeSec * 0.5);
sequenceAnim->AddAnimation(move(followAnim));
return sequenceAnim;
}
bool MapFollowAnimation::GetProperty(TObject object, TProperty property, bool targetValue, PropertyValue & value) const
{
if (property == Animation::Position)
{
ScreenBase tmp = AnimationSystem::Instance().GetLastScreen();
if (targetValue)
{
tmp.SetFromParams(m_globalPosition, m_angleInterpolator.GetTargetAngle(), m_isAutoZoom ? m_scaleInterpolator.GetScale()
: m_scaleInterpolator.GetTargetScale());
tmp.MatchGandP3d(m_globalPosition, m_endPixelPosition);
}
else
{
double const scale = m_scaleInterpolator.GetScale() / m_scaleInterpolator.GetStartScale();
double const angle = m_angleInterpolator.GetAngle() - m_angleInterpolator.GetStartAngle();
m2::PointD offset = m_offsetInterpolator.GetPosition() * scale;
offset.Rotate(angle);
m2::PointD pos = m_globalPosition + offset;
tmp.SetFromParams(m_globalPosition, m_angleInterpolator.GetAngle(), m_scaleInterpolator.GetScale());
tmp.MatchGandP3d(pos, m_endPixelPosition);
}
value = PropertyValue(tmp.GetOrg());
return true;
}
if (property == Animation::Angle)
{
value = PropertyValue(targetValue ? m_angleInterpolator.GetTargetAngle() : m_angleInterpolator.GetAngle());
return true;
}
if (property == Animation::Scale)
{
value = PropertyValue((targetValue && !m_isAutoZoom) ? m_scaleInterpolator.GetTargetScale()
: m_scaleInterpolator.GetScale());
return true;
}
ASSERT(false, ("Wrong property:", property));
return false;
}