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Add addImage, removeImage API (#7610)

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This commit is contained in:
Bobby Sudekum
2017-01-09 13:03:17 -08:00
committed by GitHub
parent 9c62af2114
commit 2988ca16c1
5 changed files with 255 additions and 1 deletions
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79
platform/node/src/node_map.cpp
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@@ -9,6 +9,7 @@
#include <mbgl/style/conversion/source.hpp>
#include <mbgl/style/conversion/layer.hpp>
#include <mbgl/style/conversion/filter.hpp>
#include <mbgl/sprite/sprite_image.cpp>
#include <unistd.h>
@@ -58,6 +59,8 @@ void NodeMap::Init(v8::Local<v8::Object> target) {
Nan::SetPrototypeMethod(tpl, "addSource", AddSource);
Nan::SetPrototypeMethod(tpl, "addLayer", AddLayer);
Nan::SetPrototypeMethod(tpl, "removeLayer", RemoveLayer);
Nan::SetPrototypeMethod(tpl, "addImage", AddImage);
Nan::SetPrototypeMethod(tpl, "removeImage", RemoveLayer);
Nan::SetPrototypeMethod(tpl, "setLayoutProperty", SetLayoutProperty);
Nan::SetPrototypeMethod(tpl, "setPaintProperty", SetPaintProperty);
Nan::SetPrototypeMethod(tpl, "setFilter", SetFilter);
@@ -579,6 +582,82 @@ void NodeMap::RemoveLayer(const Nan::FunctionCallbackInfo<v8::Value>& info) {
nodeMap->map->removeLayer(*Nan::Utf8String(info[0]));
}
void NodeMap::AddImage(const Nan::FunctionCallbackInfo<v8::Value>& info) {
using namespace mbgl::style;
using namespace mbgl::style::conversion;
auto nodeMap = Nan::ObjectWrap::Unwrap<NodeMap>(info.Holder());
if (!nodeMap->map) return Nan::ThrowError(releasedMessage());
if (info.Length() != 3) {
return Nan::ThrowTypeError("Three arguments required");
}
if (!info[0]->IsString()) {
return Nan::ThrowTypeError("First argument must be a string");
}
if (!info[1]->IsObject()) {
return Nan::ThrowTypeError("Second argument must be an object");
}
if (!info[2]->IsObject()) {
return Nan::ThrowTypeError("Third argument must be an object");
}
auto optionObject = Nan::To<v8::Object>(info[2]).ToLocalChecked();
if (!Nan::Get(optionObject, Nan::New("height").ToLocalChecked()).ToLocalChecked()->IsUint32()) {
return Nan::ThrowTypeError("height parameter required");
}
if (!Nan::Get(optionObject, Nan::New("width").ToLocalChecked()).ToLocalChecked()->IsUint32()) {
return Nan::ThrowTypeError("width parameter required");
}
if (!Nan::Get(optionObject, Nan::New("pixelRatio").ToLocalChecked()).ToLocalChecked()->IsUint32()) {
return Nan::ThrowTypeError("pixelRatio parameter required");
}
uint32_t imageHeight = Nan::Get(optionObject, Nan::New("height").ToLocalChecked()).ToLocalChecked()->Uint32Value();
uint32_t imageWidth = Nan::Get(optionObject, Nan::New("width").ToLocalChecked()).ToLocalChecked()->Uint32Value();
if (imageWidth > 1024 || imageHeight > 1024) {
return Nan::ThrowTypeError("Max height and width is 1024");
}
uint32_t pixelRatio = Nan::Get(optionObject, Nan::New("pixelRatio").ToLocalChecked()).ToLocalChecked()->Uint32Value();
auto imageBuffer = Nan::To<v8::Object>(info[1]).ToLocalChecked()->ToObject();
if (node::Buffer::Length(imageBuffer) != imageHeight * imageWidth * 4) {
return Nan::ThrowTypeError("Image size does not match buffer size");
}
std::unique_ptr<uint8_t[]> data = std::make_unique<uint8_t[]>(node::Buffer::Length(imageBuffer));
std::copy(node::Buffer::Data(imageBuffer), node::Buffer::Data(imageBuffer) + node::Buffer::Length(imageBuffer), data.get());
mbgl::PremultipliedImage cPremultipliedImage({ imageWidth, imageHeight}, std::move(data));
nodeMap->map->addImage(*Nan::Utf8String(info[0]), std::make_unique<mbgl::SpriteImage>(std::move(cPremultipliedImage), pixelRatio));
}
void NodeMap::RemoveImage(const Nan::FunctionCallbackInfo<v8::Value>& info) {
using namespace mbgl::style;
using namespace mbgl::style::conversion;
auto nodeMap = Nan::ObjectWrap::Unwrap<NodeMap>(info.Holder());
if (!nodeMap->map) return Nan::ThrowError(releasedMessage());
if (info.Length() != 1) {
return Nan::ThrowTypeError("One argument required");
}
if (!info[0]->IsString()) {
return Nan::ThrowTypeError("First argument must be a string");
}
nodeMap->map->removeImage(*Nan::Utf8String(info[0]));
}
void NodeMap::SetLayoutProperty(const Nan::FunctionCallbackInfo<v8::Value>& info) {
using namespace mbgl::style;