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#include "drape_frontend/stylist.hpp"
#include "indexer/feature.hpp"
#include "indexer/feature_visibility.hpp"
#include "indexer/ftypes_matcher.hpp"
#include "indexer/drawing_rules.hpp"
#include "indexer/drules_include.hpp"
#include "indexer/scales.hpp"
#include "std/limits.hpp"
namespace df
{
namespace
{
enum Type
{
Line = 1,
Area = Line << 1,
Symbol = Area << 1,
Caption = Symbol << 1,
Circle = Caption << 1,
PathText = Circle << 1,
Waymarker = PathText << 1,
Shield = Waymarker << 1,
CountOfType = PathText + 1
};
inline drule::rule_type_t Convert(Type t)
{
switch (t)
{
case Line : return drule::line;
case Area : return drule::area;
case Symbol : return drule::symbol;
case Caption : return drule::caption;
case Circle : return drule::circle;
case PathText : return drule::pathtext;
case Waymarker: return drule::waymarker;
case Shield : return drule::shield;
default:
return drule::count_of_rules;
}
}
double constexpr kMinPriority = numeric_limits<double>::lowest();
// ==================================== //
inline bool IsTypeOf(drule::Key const & key, int flags)
{
int currentFlag = Line;
while (currentFlag < CountOfType)
{
Type type = Type(flags & currentFlag);
if (type != 0 && key.m_type == Convert(type))
return true;
currentFlag <<= 1;
}
return false;
}
bool IsMiddleTunnel(int const layer, double const depth)
{
return layer != feature::LAYER_EMPTY && depth < 19000;
}
void FilterRulesByRuntimeSelector(FeatureType const & f, int zoomLevel, drule::KeysT & keys)
{
keys.erase_if([&f, zoomLevel](drule::Key const & key)->bool
{
drule::BaseRule const * const rule = drule::rules().Find(key);
ASSERT(rule != nullptr, ());
return !rule->TestFeature(f, zoomLevel);
});
}
class KeyFunctor
{
public:
KeyFunctor(FeatureType const & f,
feature::EGeomType type,
int const zoomLevel,
int const keyCount,
CaptionDescription & descr)
: m_pointStyleFound(false)
, m_lineStyleFound(false)
, m_iconFound(false)
, m_captionWithoutOffsetFound(false)
, m_auxCaptionFound(false)
, m_mainTextType(drule::text_type_name)
, m_descrInit(false)
, m_f(f)
, m_geomType(type)
, m_zoomLevel(zoomLevel)
, m_descr(descr)
{
m_rules.reserve(keyCount);
Init();
}
void ProcessKey(drule::Key const & key)
{
double depth = key.m_priority;
if (IsMiddleTunnel(m_depthLayer, depth) &&
IsTypeOf(key, Line | Area | Waymarker))
{
double const layerPart = m_depthLayer * drule::layer_base_priority;
double const depthPart = fmod(depth, drule::layer_base_priority);
depth = layerPart + depthPart;
}
if (IsTypeOf(key, Caption | Symbol | Circle | PathText))
{
depth += m_priorityModifier;
if (m_geomType == feature::GEOM_POINT) ++depth;
}
else if (IsTypeOf(key, Area))
depth -= m_priorityModifier;
drule::BaseRule const * const dRule = drule::rules().Find(key);
m_rules.push_back(make_pair(dRule, depth));
if (dRule->GetCaption(0) != nullptr)
{
InitCaptionDescription();
m_mainTextType = dRule->GetCaptionTextType(0);
}
bool const isNonEmptyCaption = IsTypeOf(key, Caption) && IsNameExists();
m_pointStyleFound |= (IsTypeOf(key, Symbol | Circle) || isNonEmptyCaption);
m_lineStyleFound |= IsTypeOf(key, Line);
m_auxCaptionFound |= (dRule->GetCaption(1) != nullptr);
}
bool m_pointStyleFound;
bool m_lineStyleFound;
bool m_iconFound;
bool m_captionWithoutOffsetFound;
bool m_auxCaptionFound;
buffer_vector<Stylist::TRuleWrapper, 8> m_rules;
drule::text_type_t m_mainTextType;
bool m_descrInit;
private:
void Init()
{
m_depthLayer = m_f.GetLayer();
if (m_depthLayer == feature::LAYER_TRANSPARENT_TUNNEL)
m_depthLayer = feature::LAYER_EMPTY;
if (m_geomType == feature::GEOM_POINT)
m_priorityModifier = (double)m_f.GetPopulation() / 7E9;
else
{
m2::RectD const r = m_f.GetLimitRect(m_zoomLevel);
m_priorityModifier = min(1.0, r.SizeX() * r.SizeY() * 10000.0);
}
}
void InitCaptionDescription()
{
if (!m_descrInit)
{
m_descr.Init(m_f, m_zoomLevel);
m_descrInit = true;
}
}
inline bool IsNameExists() const
{
ASSERT(m_descrInit, ());
return m_descr.IsNameExists();
}
private:
FeatureType const & m_f;
feature::EGeomType m_geomType;
int const m_zoomLevel;
double m_priorityModifier;
int m_depthLayer;
CaptionDescription & m_descr;
};
const uint8_t CoastlineFlag = 1;
const uint8_t AreaStyleFlag = 1 << 1;
const uint8_t LineStyleFlag = 1 << 2;
const uint8_t PointStyleFlag = 1 << 3;
} // namespace
// ==================================== //
void CaptionDescription::Init(FeatureType const & f,
int const zoomLevel)
{
f.GetPreferredNames(m_mainText, m_auxText);
m_roadNumber = f.GetRoadNumber();
m_houseNumber = f.GetHouseNumber();
SwapCaptions(zoomLevel);
DiscardLongCaption(zoomLevel);
}
void CaptionDescription::FormatCaptions(FeatureType const & f,
feature::EGeomType type,
drule::text_type_t mainTextType,
bool auxCaptionExists)
{
if (!auxCaptionExists && !m_auxText.empty() && type != feature::GEOM_LINE)
{
f.GetReadableName(m_mainText);
if (m_mainText == m_auxText)
m_auxText.clear();
}
if (mainTextType == drule::text_type_housenumber)
{
m_mainText = move(m_houseNumber);
}
else if (mainTextType == drule::text_type_name)
{
if (!m_houseNumber.empty())
{
if (m_mainText.empty() || m_houseNumber.find(m_mainText) != string::npos)
m_houseNumber.swap(m_mainText);
}
}
}
string const & CaptionDescription::GetMainText() const
{
return m_mainText;
}
string const & CaptionDescription::GetAuxText() const
{
return m_auxText;
}
string const & CaptionDescription::GetRoadNumber() const
{
return m_roadNumber;
}
string CaptionDescription::GetPathName() const
{
// Always concat names for linear features because we process only one draw rule now.
if (m_mainText.empty())
return m_mainText;
else
return m_mainText + " " + m_auxText;
}
bool CaptionDescription::IsNameExists() const
{
return !m_mainText.empty() || !m_houseNumber.empty();
}
void CaptionDescription::SwapCaptions(int const zoomLevel)
{
if (zoomLevel <= scales::GetUpperWorldScale() && !m_auxText.empty())
{
m_mainText.swap(m_auxText);
m_auxText.clear();
}
}
void CaptionDescription::DiscardLongCaption(int const zoomLevel)
{
if (zoomLevel < 5 && m_mainText.size() > 50)
m_mainText.clear();
}
// ==================================== //
Stylist::Stylist()
: m_state(0)
{
}
bool Stylist::IsCoastLine() const
{
return (m_state & CoastlineFlag) != 0;
}
bool Stylist::AreaStyleExists() const
{
return (m_state & AreaStyleFlag) != 0;
}
bool Stylist::LineStyleExists() const
{
return (m_state & LineStyleFlag) != 0;
}
bool Stylist::PointStyleExists() const
{
return (m_state & PointStyleFlag) != 0;
}
CaptionDescription const & Stylist::GetCaptionDescription() const
{
return m_captionDescriptor;
}
void Stylist::ForEachRule(Stylist::TRuleCallback const & fn) const
{
typedef rules_t::const_iterator const_iter;
for (const_iter it = m_rules.begin(); it != m_rules.end(); ++it)
fn(*it);
}
bool Stylist::IsEmpty() const
{
return m_rules.empty();
}
void Stylist::RaiseCoastlineFlag()
{
m_state |= CoastlineFlag;
}
void Stylist::RaiseAreaStyleFlag()
{
m_state |= AreaStyleFlag;
}
void Stylist::RaiseLineStyleFlag()
{
m_state |= LineStyleFlag;
}
void Stylist::RaisePointStyleFlag()
{
m_state |= PointStyleFlag;
}
CaptionDescription & Stylist::GetCaptionDescriptionImpl()
{
return m_captionDescriptor;
}
bool InitStylist(FeatureType const & f, int const zoomLevel, bool buildings3d, Stylist & s)
{
feature::TypesHolder const types(f);
if (!buildings3d && ftypes::IsBuildingPartChecker::Instance()(types) &&
!ftypes::IsBuildingChecker::Instance()(types))
return false;
drule::KeysT keys;
pair<int, bool> const geomType = feature::GetDrawRule(types, zoomLevel, keys);
FilterRulesByRuntimeSelector(f, zoomLevel, keys);
if (keys.empty())
return false;
drule::MakeUnique(keys);
if (geomType.second)
s.RaiseCoastlineFlag();
feature::EGeomType mainGeomType = feature::EGeomType(geomType.first);
switch (mainGeomType)
{
case feature::GEOM_POINT:
s.RaisePointStyleFlag();
break;
case feature::GEOM_LINE :
s.RaiseLineStyleFlag();
break;
case feature::GEOM_AREA :
s.RaiseAreaStyleFlag();
break;
default:
ASSERT(false, ());
return false;
}
CaptionDescription & descr = s.GetCaptionDescriptionImpl();
KeyFunctor keyFunctor(f, mainGeomType, zoomLevel, keys.size(), descr);
for (auto const & key : keys)
keyFunctor.ProcessKey(key);
if (keyFunctor.m_pointStyleFound)
s.RaisePointStyleFlag();
if (keyFunctor.m_lineStyleFound)
s.RaiseLineStyleFlag();
s.m_rules.swap(keyFunctor.m_rules);
if (keyFunctor.m_descrInit)
descr.FormatCaptions(f, mainGeomType, keyFunctor.m_mainTextType, keyFunctor.m_auxCaptionFound);
return true;
}
double GetFeaturePriority(FeatureType const & f, int const zoomLevel)
{
drule::KeysT keys;
pair<int, bool> const geomType = feature::GetDrawRule(f, zoomLevel, keys);
FilterRulesByRuntimeSelector(f, zoomLevel, keys);
feature::EGeomType const mainGeomType = feature::EGeomType(geomType.first);
CaptionDescription descr;
KeyFunctor keyFunctor(f, mainGeomType, zoomLevel, keys.size(), descr);
for (auto const & key : keys)
keyFunctor.ProcessKey(key);
double maxPriority = kMinPriority;
for (auto const & rule : keyFunctor.m_rules)
{
if (rule.second > maxPriority)
maxPriority = rule.second;
}
return maxPriority;
}
} // namespace df
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