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MapLibreParticleLab/include/llmr/map/tile_data.hpp
Konstantin Käfer 2b14579986 only paint layer if it has data
refs #184
2014-05-12 19:08:59 +02:00

76 lines
1.5 KiB
C++

#ifndef LLMR_MAP_TILE_DATA
#define LLMR_MAP_TILE_DATA
#include <llmr/map/tile.hpp>
#include <llmr/util/noncopyable.hpp>
#include <llmr/platform/platform.hpp>
#include <llmr/geometry/vao.hpp>
#include <llmr/renderer/debug_bucket.hpp>
#include <cstdint>
#include <string>
#include <memory>
#include <atomic>
namespace llmr {
class Map;
class Painter;
class LayerDescription;
class TileData : public std::enable_shared_from_this<TileData>,
private util::noncopyable {
public:
struct exception : std::exception {};
struct geometry_too_long_exception : exception {};
public:
typedef std::shared_ptr<TileData> Ptr;
enum class State {
invalid,
initial,
loading,
loaded,
parsed,
obsolete
};
public:
TileData(Tile::ID id, Map &map, const std::string url);
~TileData();
void request();
void cancel();
void reparse();
const std::string toString() const;
// Override this in the child class.
virtual void parse() = 0;
virtual void render(Painter &painter, const LayerDescription& layer_desc) = 0;
virtual bool hasData(const LayerDescription& layer_desc) const = 0;
public:
const Tile::ID id;
std::atomic<State> state;
protected:
Map &map;
// Request-related information.
const std::string url;
std::weak_ptr<platform::Request> req;
std::string data;
// Contains the tile ID string for painting debug information.
DebugFontBuffer debugFontBuffer;
public:
DebugBucket debugBucket;
};
}
#endif