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
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
|
#include "layer.hpp"
#include "../android_conversion.hpp"
#include <jni/jni.hpp>
#include <mbgl/style/style.hpp>
#include <mbgl/style/filter.hpp>
#include <mbgl/style/transition_options.hpp>
#include <mbgl/style/layers/background_layer.hpp>
#include <mbgl/style/layers/circle_layer.hpp>
#include <mbgl/style/layers/fill_layer.hpp>
#include <mbgl/style/layers/fill_extrusion_layer.hpp>
#include <mbgl/style/layers/heatmap_layer.hpp>
#include <mbgl/style/layers/hillshade_layer.hpp>
#include <mbgl/style/layers/line_layer.hpp>
#include <mbgl/style/layers/raster_layer.hpp>
#include <mbgl/style/layers/symbol_layer.hpp>
#include <mbgl/util/logging.hpp>
// Java -> C++ conversion
#include <mbgl/style/conversion.hpp>
#include <mbgl/style/conversion/filter.hpp>
#include <mbgl/style/conversion/layer.hpp>
#include <mbgl/style/conversion/source.hpp>
// C++ -> Java conversion
#include "../conversion/property_value.hpp"
#include <mbgl/style/filter.hpp>
#include <string>
namespace mbgl {
namespace android {
/**
* Invoked when the construction is initiated from the jvm through a subclass
*/
Layer::Layer(jni::JNIEnv&, std::unique_ptr<mbgl::style::Layer> coreLayer)
: ownedLayer(std::move(coreLayer))
, layer(*ownedLayer) {
}
/**
* Takes a non-owning reference. For lookup methods
*/
Layer::Layer(mbgl::Map& coreMap, mbgl::style::Layer& coreLayer) : layer(coreLayer) , map(&coreMap) {
}
/**
* Takes a owning reference. Ownership is transfered to this peer, eg after removing
* from the map
*/
Layer::Layer(mbgl::Map& coreMap, std::unique_ptr<mbgl::style::Layer> coreLayer)
: ownedLayer(std::move(coreLayer))
, layer(*ownedLayer)
, map(&coreMap) {
}
Layer::~Layer() {
}
void Layer::addToMap(mbgl::Map& _map, mbgl::optional<std::string> before) {
// Check to see if we own the layer first
if (!ownedLayer) {
throw std::runtime_error("Cannot add layer twice");
}
// Add layer to map
_map.getStyle().addLayer(releaseCoreLayer(), before);
// Save pointer to the map
this->map = &_map;
}
void Layer::setLayer(std::unique_ptr<mbgl::style::Layer> sourceLayer) {
this->ownedLayer = std::move(sourceLayer);
}
std::unique_ptr<mbgl::style::Layer> Layer::releaseCoreLayer() {
assert(ownedLayer != nullptr);
return std::move(ownedLayer);
}
jni::String Layer::getId(jni::JNIEnv& env) {
return jni::Make<jni::String>(env, layer.getID());
}
style::Layer& Layer::get() {
return layer;
}
void Layer::setLayoutProperty(jni::JNIEnv& env, jni::String jname, jni::Object<> jvalue) {
// Convert and set property
optional<mbgl::style::conversion::Error> error = mbgl::style::conversion::setLayoutProperty(layer, jni::Make<std::string>(env, jname), Value(env, jvalue));
if (error) {
mbgl::Log::Error(mbgl::Event::JNI, "Error setting property: " + jni::Make<std::string>(env, jname) + " " + error->message);
return;
}
}
void Layer::setPaintProperty(jni::JNIEnv& env, jni::String jname, jni::Object<> jvalue) {
// Convert and set property
optional<mbgl::style::conversion::Error> error = mbgl::style::conversion::setPaintProperty(layer, jni::Make<std::string>(env, jname), Value(env, jvalue));
if (error) {
mbgl::Log::Error(mbgl::Event::JNI, "Error setting property: " + jni::Make<std::string>(env, jname) + " " + error->message);
return;
}
}
struct SetFilterEvaluator {
style::Filter filter;
void operator()(style::BackgroundLayer&) { Log::Warning(mbgl::Event::JNI, "BackgroundLayer doesn't support filters"); }
void operator()(style::CustomLayer&) { Log::Warning(mbgl::Event::JNI, "CustomLayer doesn't support filters"); }
void operator()(style::RasterLayer&) { Log::Warning(mbgl::Event::JNI, "RasterLayer doesn't support filters"); }
void operator()(style::HillshadeLayer&) { Log::Warning(mbgl::Event::JNI, "HillshadeLayer doesn't support filters"); }
template <class LayerType>
void operator()(LayerType& layer) {
layer.setFilter(filter);
}
};
void Layer::setFilter(jni::JNIEnv& env, jni::Array<jni::Object<>> jfilter) {
using namespace mbgl::style;
using namespace mbgl::style::conversion;
Error error;
optional<Filter> converted = convert<Filter>(Value(env, jfilter), error);
if (!converted) {
mbgl::Log::Error(mbgl::Event::JNI, "Error setting filter: " + error.message);
return;
}
layer.accept(SetFilterEvaluator {std::move(*converted)});
}
struct GetFilterEvaluator {
mbgl::style::Filter noop(std::string layerType) {
Log::Warning(mbgl::Event::JNI, "%s doesn't support filter", layerType.c_str());
return {};
}
mbgl::style::Filter operator()(style::BackgroundLayer&) { return noop("BackgroundLayer"); }
mbgl::style::Filter operator()(style::CustomLayer&) { return noop("CustomLayer"); }
mbgl::style::Filter operator()(style::RasterLayer&) { return noop("RasterLayer"); }
mbgl::style::Filter operator()(style::HillshadeLayer&) { return noop("HillshadeLayer"); }
template <class LayerType>
mbgl::style::Filter operator()(LayerType& layer) {
return layer.getFilter();
}
};
jni::Object<gson::JsonElement> Layer::getFilter(jni::JNIEnv& env) {
using namespace mbgl::style;
using namespace mbgl::style::conversion;
Filter filter = layer.accept(GetFilterEvaluator());
if (filter.expression) {
mbgl::Value expressionValue = (*filter.expression)->serialize();
return gson::JsonElement::New(env, expressionValue);
} else {
return jni::Object<gson::JsonElement>();
}
}
struct SetSourceLayerEvaluator {
std::string sourceLayer;
void operator()(style::BackgroundLayer&) { Log::Warning(mbgl::Event::JNI, "BackgroundLayer doesn't support source layer"); }
void operator()(style::CustomLayer&) { Log::Warning(mbgl::Event::JNI, "CustomLayer doesn't support source layer"); }
void operator()(style::RasterLayer&) { Log::Warning(mbgl::Event::JNI, "RasterLayer doesn't support source layer"); }
void operator()(style::HillshadeLayer&) { Log::Warning(mbgl::Event::JNI, "HillshadeLayer doesn't support source layer"); }
template <class LayerType>
void operator()(LayerType& layer) {
layer.setSourceLayer(sourceLayer);
}
};
void Layer::setSourceLayer(jni::JNIEnv& env, jni::String sourceLayer) {
layer.accept(SetSourceLayerEvaluator {jni::Make<std::string>(env, sourceLayer)});
}
struct GetSourceLayerEvaluator {
std::string noop(std::string layerType) {
Log::Warning(mbgl::Event::JNI, "%s doesn't support source layer", layerType.c_str());
return {};
}
std::string operator()(style::BackgroundLayer&) { return noop("BackgroundLayer"); }
std::string operator()(style::CustomLayer&) { return noop("CustomLayer"); }
std::string operator()(style::RasterLayer&) { return noop("RasterLayer"); }
std::string operator()(style::HillshadeLayer&) { return noop("HillshadeLayer"); }
template <class LayerType>
std::string operator()(LayerType& layer) {
return layer.getSourceLayer();
}
};
jni::String Layer::getSourceLayer(jni::JNIEnv& env) {
return jni::Make<jni::String>(env, layer.accept(GetSourceLayerEvaluator()));
}
jni::jfloat Layer::getMinZoom(jni::JNIEnv&){
return layer.getMinZoom();
}
jni::jfloat Layer::getMaxZoom(jni::JNIEnv&) {
return layer.getMaxZoom();
}
void Layer::setMinZoom(jni::JNIEnv&, jni::jfloat zoom) {
layer.setMinZoom(zoom);
}
void Layer::setMaxZoom(jni::JNIEnv&, jni::jfloat zoom) {
layer.setMaxZoom(zoom);
}
jni::Object<jni::ObjectTag> Layer::getVisibility(jni::JNIEnv& env) {
using namespace mbgl::android::conversion;
return jni::Object<jni::ObjectTag>(*convert<jni::jobject*>(env, layer.getVisibility()));
}
jni::Class<Layer> Layer::javaClass;
void Layer::registerNative(jni::JNIEnv& env) {
// Lookup the class
Layer::javaClass = *jni::Class<Layer>::Find(env).NewGlobalRef(env).release();
#define METHOD(MethodPtr, name) jni::MakeNativePeerMethod<decltype(MethodPtr), (MethodPtr)>(name)
// Register the peer
jni::RegisterNativePeer<Layer>(env, Layer::javaClass, "nativePtr",
METHOD(&Layer::getId, "nativeGetId"),
METHOD(&Layer::setLayoutProperty, "nativeSetLayoutProperty"),
METHOD(&Layer::setPaintProperty, "nativeSetPaintProperty"),
METHOD(&Layer::setFilter, "nativeSetFilter"),
METHOD(&Layer::getFilter, "nativeGetFilter"),
METHOD(&Layer::setSourceLayer, "nativeSetSourceLayer"),
METHOD(&Layer::getSourceLayer, "nativeGetSourceLayer"),
METHOD(&Layer::getMinZoom, "nativeGetMinZoom"),
METHOD(&Layer::getMaxZoom, "nativeGetMaxZoom"),
METHOD(&Layer::setMinZoom, "nativeSetMinZoom"),
METHOD(&Layer::setMaxZoom, "nativeSetMaxZoom"),
METHOD(&Layer::getVisibility, "nativeGetVisibility")
);
}
} // namespace android
} // namespace mbgl
|
