1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
#ifndef MBGL_STYLE_STYLE
#define MBGL_STYLE_STYLE
#include <mbgl/style/zoom_history.hpp>
#include <mbgl/map/source.hpp>
#include <mbgl/text/glyph_store.hpp>
#include <mbgl/sprite/sprite_store.hpp>
#include <mbgl/util/noncopyable.hpp>
#include <mbgl/util/chrono.hpp>
#include <mbgl/util/worker.hpp>
#include <mbgl/util/optional.hpp>
#include <cstdint>
#include <string>
#include <vector>
namespace mbgl {
class MapData;
class GlyphAtlas;
class GlyphStore;
class SpriteStore;
class SpriteAtlas;
class LineAtlas;
class StyleLayer;
class TransformState;
class TexturePool;
class Tile;
class Bucket;
struct RenderItem {
inline RenderItem(const StyleLayer& layer_,
const Tile* tile_ = nullptr,
Bucket* bucket_ = nullptr)
: tile(tile_), bucket(bucket_), layer(layer_) {
}
const Tile* const tile;
Bucket* const bucket;
const StyleLayer& layer;
};
struct RenderData {
Color backgroundColor = {{ 0, 0, 0, 0 }};
std::set<Source*> sources;
std::vector<RenderItem> order;
};
class Style : public GlyphStore::Observer,
public SpriteStore::Observer,
public Source::Observer,
public util::noncopyable {
public:
Style(MapData&);
~Style();
class Observer : public GlyphStore::Observer,
public SpriteStore::Observer,
public Source::Observer {
public:
/**
* In addition to the individual glyph, sprite, and source events, the
* following "rollup" events are provided for convenience. They are
* strictly additive; e.g. when a source is loaded, both `onSourceLoaded`
* and `onResourceLoaded` will be called.
*/
virtual void onResourceLoaded() {};
virtual void onResourceError(std::exception_ptr) {};
};
void setJSON(const std::string& data, const std::string& base);
void setObserver(Observer*);
bool isLoaded() const;
// Fetch the tiles needed by the current viewport and emit a signal when
// a tile is ready so observers can render the tile.
void update(const TransformState&, TexturePool&);
void cascade();
void recalculate(float z);
bool hasTransitions() const;
std::exception_ptr getLastError() const {
return lastError;
}
Source* getSource(const std::string& id) const;
void addSource(std::unique_ptr<Source>);
std::vector<std::unique_ptr<StyleLayer>> getLayers() const;
StyleLayer* getLayer(const std::string& id) const;
void addLayer(std::unique_ptr<StyleLayer>,
optional<std::string> beforeLayerID = {});
void removeLayer(const std::string& layerID);
RenderData getRenderData() const;
void setSourceTileCacheSize(size_t);
void onLowMemory();
void dumpDebugLogs() const;
MapData& data;
std::unique_ptr<GlyphStore> glyphStore;
std::unique_ptr<GlyphAtlas> glyphAtlas;
std::unique_ptr<SpriteStore> spriteStore;
std::unique_ptr<SpriteAtlas> spriteAtlas;
std::unique_ptr<LineAtlas> lineAtlas;
private:
std::vector<std::unique_ptr<Source>> sources;
std::vector<std::unique_ptr<StyleLayer>> layers;
std::vector<std::unique_ptr<StyleLayer>>::const_iterator findLayer(const std::string& layerID) const;
// GlyphStore::Observer implementation.
void onGlyphsLoaded(const std::string& fontStack, const GlyphRange&) override;
void onGlyphsError(const std::string& fontStack, const GlyphRange&, std::exception_ptr) override;
// SpriteStore::Observer implementation.
void onSpriteLoaded() override;
void onSpriteError(std::exception_ptr) override;
// Source::Observer implementation.
void onSourceLoaded(Source&) override;
void onSourceError(Source&, std::exception_ptr) override;
void onTileLoaded(Source&, const TileID&, bool isNewTile) override;
void onTileError(Source&, const TileID&, std::exception_ptr) override;
void onPlacementRedone() override;
bool shouldReparsePartialTiles = false;
Observer nullObserver;
Observer* observer = &nullObserver;
std::exception_ptr lastError;
ZoomHistory zoomHistory;
bool hasPendingTransitions = false;
public:
bool loaded = false;
Worker workers;
};
} // namespace mbgl
#endif
|
