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#include "screen_operations.hpp"
#include "drape_frontend/animation/interpolators.hpp"
#include "drape_frontend/animation/linear_animation.hpp"
#include "drape_frontend/animation/scale_animation.hpp"
#include "drape_frontend/animation_constants.hpp"
#include "drape_frontend/visual_params.hpp"
#include "indexer/scales.hpp"
#include "platform/platform.hpp"
namespace
{
/// @todo Review this logic in future.
/// Fix bug with floating point calculations (before Android release).
void ReduceRectHack(m2::RectD & r)
{
r.Inflate(-1.0E-9, -1.0E-9);
}
} // namespace
namespace df
{
bool IsScaleAllowableIn3d(int scale)
{
int minScale = scales::GetMinAllowableIn3dScale();
if (df::VisualParams::Instance().GetVisualScale() <= 1.0)
--minScale;
if (GetPlatform().IsTablet())
++minScale;
return scale >= minScale;
}
double CalculateScale(m2::RectD const & pixelRect, m2::RectD const & localRect)
{
return max(localRect.SizeX() / pixelRect.SizeX(), localRect.SizeY() / pixelRect.SizeY());
}
m2::PointD CalculateCenter(double scale, m2::RectD const & pixelRect,
m2::PointD const & userPos, m2::PointD const & pixelPos,
double azimuth)
{
m2::PointD formingVector = (pixelRect.Center() - pixelPos) * scale;
formingVector.y = -formingVector.y;
formingVector.Rotate(azimuth);
return userPos + formingVector;
}
m2::PointD CalculateCenter(ScreenBase const & screen, m2::PointD const & userPos,
m2::PointD const & pixelPos, double azimuth)
{
double const scale = screen.GlobalRect().GetLocalRect().SizeX() / screen.PixelRect().SizeX();
return CalculateCenter(scale, screen.PixelRect(), userPos, pixelPos, azimuth);
}
bool CheckMinScale(ScreenBase const & screen)
{
m2::RectD const & r = screen.ClipRect();
m2::RectD const & worldR = df::GetWorldRect();
return (r.SizeX() <= worldR.SizeX() || r.SizeY() <= worldR.SizeY());
}
bool CheckMaxScale(ScreenBase const & screen)
{
VisualParams const & p = VisualParams::Instance();
return CheckMaxScale(screen, p.GetTileSize(), p.GetVisualScale());
}
bool CheckMaxScale(ScreenBase const & screen, uint32_t tileSize, double visualScale)
{
return (df::GetDrawTileScale(screen, tileSize, visualScale) <= scales::GetUpperStyleScale());
}
bool CheckBorders(ScreenBase const & screen)
{
m2::RectD const & r = screen.ClipRect();
m2::RectD const & worldR = df::GetWorldRect();
return (r.IsRectInside(worldR) || worldR.IsRectInside(r));
}
bool CanShrinkInto(ScreenBase const & screen, m2::RectD const & boundRect)
{
m2::RectD clipRect = screen.ClipRect();
return (boundRect.SizeX() >= clipRect.SizeX())
&& (boundRect.SizeY() >= clipRect.SizeY());
}
ScreenBase const ShrinkInto(ScreenBase const & screen, m2::RectD boundRect)
{
ReduceRectHack(boundRect);
ScreenBase res = screen;
m2::RectD clipRect = res.ClipRect();
if (clipRect.minX() < boundRect.minX())
clipRect.Offset(boundRect.minX() - clipRect.minX(), 0);
if (clipRect.maxX() > boundRect.maxX())
clipRect.Offset(boundRect.maxX() - clipRect.maxX(), 0);
if (clipRect.minY() < boundRect.minY())
clipRect.Offset(0, boundRect.minY() - clipRect.minY());
if (clipRect.maxY() > boundRect.maxY())
clipRect.Offset(0, boundRect.maxY() - clipRect.maxY());
res.SetOrg(clipRect.Center());
// This assert fails near x = 180 (Philipines).
//ASSERT ( boundRect.IsRectInside(res.ClipRect()), (clipRect, res.ClipRect()) );
return res;
}
ScreenBase const ScaleInto(ScreenBase const & screen, m2::RectD boundRect)
{
ReduceRectHack(boundRect);
ScreenBase res = screen;
double scale = 1;
m2::RectD clipRect = res.ClipRect();
ASSERT(boundRect.IsPointInside(clipRect.Center()), ("center point should be inside boundRect"));
if (clipRect.minX() < boundRect.minX())
{
double k = (boundRect.minX() - clipRect.Center().x) / (clipRect.minX() - clipRect.Center().x);
scale /= k;
clipRect.Scale(k);
}
if (clipRect.maxX() > boundRect.maxX())
{
double k = (boundRect.maxX() - clipRect.Center().x) / (clipRect.maxX() - clipRect.Center().x);
scale /= k;
clipRect.Scale(k);
}
if (clipRect.minY() < boundRect.minY())
{
double k = (boundRect.minY() - clipRect.Center().y) / (clipRect.minY() - clipRect.Center().y);
scale /= k;
clipRect.Scale(k);
}
if (clipRect.maxY() > boundRect.maxY())
{
double k = (boundRect.maxY() - clipRect.Center().y) / (clipRect.maxY() - clipRect.Center().y);
scale /= k;
clipRect.Scale(k);
}
res.Scale(scale);
res.SetOrg(clipRect.Center());
return res;
}
ScreenBase const ShrinkAndScaleInto(ScreenBase const & screen, m2::RectD boundRect)
{
ReduceRectHack(boundRect);
ScreenBase res = screen;
m2::RectD globalRect = res.ClipRect();
m2::PointD newOrg = res.GetOrg();
double scale = 1;
double offs = 0;
if (globalRect.minX() < boundRect.minX())
{
offs = boundRect.minX() - globalRect.minX();
globalRect.Offset(offs, 0);
newOrg.x += offs;
if (globalRect.maxX() > boundRect.maxX())
{
double k = boundRect.SizeX() / globalRect.SizeX();
scale /= k;
/// scaling always occur pinpointed to the rect center...
globalRect.Scale(k);
/// ...so we should shift a rect after scale
globalRect.Offset(boundRect.minX() - globalRect.minX(), 0);
}
}
if (globalRect.maxX() > boundRect.maxX())
{
offs = boundRect.maxX() - globalRect.maxX();
globalRect.Offset(offs, 0);
newOrg.x += offs;
if (globalRect.minX() < boundRect.minX())
{
double k = boundRect.SizeX() / globalRect.SizeX();
scale /= k;
globalRect.Scale(k);
globalRect.Offset(boundRect.maxX() - globalRect.maxX(), 0);
}
}
if (globalRect.minY() < boundRect.minY())
{
offs = boundRect.minY() - globalRect.minY();
globalRect.Offset(0, offs);
newOrg.y += offs;
if (globalRect.maxY() > boundRect.maxY())
{
double k = boundRect.SizeY() / globalRect.SizeY();
scale /= k;
globalRect.Scale(k);
globalRect.Offset(0, boundRect.minY() - globalRect.minY());
}
}
if (globalRect.maxY() > boundRect.maxY())
{
offs = boundRect.maxY() - globalRect.maxY();
globalRect.Offset(0, offs);
newOrg.y += offs;
if (globalRect.minY() < boundRect.minY())
{
double k = boundRect.SizeY() / globalRect.SizeY();
scale /= k;
globalRect.Scale(k);
globalRect.Offset(0, boundRect.maxY() - globalRect.maxY());
}
}
res.SetOrg(globalRect.Center());
res.Scale(scale);
return res;
}
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;
}
} // namespace df
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