ForCAX/entry/src/main/cpp/NativeEGLOCCT/NativeRender.cpp

#include "NativeRender.h"
#include "Aspect_TypeOfLine.hxx"
#include "Font_FontAspect.hxx"
#include "STEPControl_Reader.hxx"

#ifndef NATIVE_TAG
#define NATIVE_TAG "NativeRender"
#endif

static std::mutex renderMutex;
namespace NativeOpenCAX {

NativeRender::NativeRender(int w, int h)
    : width(0), height(0), mAxis(new Axis), nAxis(new Axis), cr(new Camera), ctx(new Context),
      ogd(new OpenGlGraphicDriver), ts(new TextStyle), vw(new View), vr(new Viewer), win(new Window) {
    width = w;
    height = h;
    
}

NativeRender::~NativeRender() { shapes_.clear(); }

bool NativeRender::init(EGLCore &_eglCore) {
    eglCore = _eglCore;
    if (!ogd->InitOpenGlGraphicDriver(eglCore)) {
        HILOG_ERROR(NATIVE_TAG, "Init GraphicDriver Fail!");
        return false;
    }
    if (!ts->InitTextStyle()) {
        HILOG_ERROR(NATIVE_TAG, "Init TextSyle Fail!");
        return false;
    }
    if (!vr->InitViewer(ogd->graphicDriver)) {
        HILOG_ERROR(NATIVE_TAG, "Init Viewer Fail!");
        return false;
    }
    if (!ctx->InitContext(vr->viewer,ts->GetFontStyle(STYLE_AXIS))) {
        HILOG_ERROR(NATIVE_TAG, "Init Ctx Fail!");
        return false;
    }
    if (!win->InitWindow(width, height)) {
        HILOG_ERROR(NATIVE_TAG, "Init Window Fail!");
        return false;
    }
    if (!vw->InitView(vr->viewer)) {
        HILOG_ERROR(NATIVE_TAG, "Init View Fail!");
        return false;
    } else {
        vw->SetViewOption(ts->GetFontStyle(STYLE_AXIS));
        vw->SetText(ts->GetFontStyle(STYLE_AXIS));
        vw->SetWin(win->window);
    }
    if (!cr->InitCamera(vw->view)) {
        HILOG_ERROR(NATIVE_TAG, "Init Camera Fail!");
        return false;
    }

    if (!mAxis->InitAxis(ctx->context)) {
        HILOG_ERROR(NATIVE_TAG, "Init AXIS Fail!");
        return false;
    }

    if (!mAxis->InitAxisCube(ctx->context,ts->GetFontStyle(STYLE_FACE))) {
        HILOG_ERROR(NATIVE_TAG, "Init AXIS Cuba Fail!");
        return false;
    }
    vw->ResetView();
    return true;
}

bool NativeRender::loadModel(const std::string &filePath) {
    // 清除现有模型
    for (auto &shape : shapes_) {
        ctx->context->Remove(shape, false);
    }
    shapes_.clear();

    // 加载STEP文件
    STEPControl_Reader reader;
    IFSelect_ReturnStatus status = reader.ReadFile(filePath.c_str());
    if (status != IFSelect_RetDone) {
        printf("Error: Failed to read STEP file: %s\n", filePath.c_str());
        return false;
    }

    // 将文件内容转换为OCCT形状
    reader.TransferRoots();
    int numShapes = reader.NbShapes();
    if (numShapes <= 0) {
        printf("Error: No shapes found in STEP file\n");
        return false;
    }

    // 加载所有形状
    for (int i = 1; i <= numShapes; i++) {
        TopoDS_Shape shape = reader.Shape(i);
        Bnd_Box bbox;
        BRepBndLib::Add(shape, bbox);
        double xmin, ymin, zmin, xmax, ymax, zmax;
        bbox.Get(xmin, ymin, zmin, xmax, ymax, zmax);
        gp_Pnt center((xmin + xmax) / 2.0, (ymin + ymax) / 2.0, (zmin + zmax) / 2.0);
        gp_Vec translation(-center.X(), -center.Y(), -center.Z());
        gp_Trsf move;
        move.SetTranslation(translation);
        BRepBuilderAPI_Transform transformer(shape, move);
        shape = transformer.Shape();
        if (!shape.IsNull()) {
            Handle(AIS_Shape) aisShape = new AIS_Shape(shape);

            // 设置材质
            Handle(Prs3d_Drawer) drawer = aisShape->Attributes();
            Handle(Prs3d_ShadingAspect) shadingAspect = new Prs3d_ShadingAspect();
            // aisShape->SetDisplayMode(1);
            Handle(Prs3d_LineAspect) aLineAspect = new Prs3d_LineAspect(Quantity_NOC_BLACK, // 颜色，例如黑色
                                                                        Aspect_TOL_DASH,    // 线型
                                                                        3.0                 // 线宽
            );

            // 随机颜色
            int colorIndex = i % 7;
            Quantity_Color color;
            switch (colorIndex) {
            case 0:
                color = Quantity_NOC_RED;
                break;
            case 1:
                color = Quantity_NOC_GREEN;
                break;
            case 2:
                color = Quantity_NOC_BLUE1;
                break;
            case 3:
                color = Quantity_NOC_YELLOW;
                break;
            case 4:
                color = Quantity_NOC_MAGENTA1;
                break;
            case 5:
                color = Quantity_NOC_CYAN1;
                break;
            case 6:
                color = Quantity_NOC_ORANGE;
                break;
            default:
                color = Quantity_NOC_WHITE;
            }
            shadingAspect->SetColor(color);
            shadingAspect->SetMaterial(Graphic3d_NOM_PLASTIC);
            drawer->SetFaceBoundaryDraw(true);
            drawer->SetWireAspect(aLineAspect);
            drawer->SetShadingAspect(shadingAspect);
            ctx->context->Display(aisShape, true);
            // ctx->context->SetDisplayMode(AIS_WireFrame, Standard_False);
            shapes_.push_back(aisShape);
        }
    }
    vw->view->ZFitAll();
    vw->ResetView();
    OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "LoadModel",
                 "Successfully loaded STEP file with %{public}d shapes", numShapes);
    return true;
}

// setTranslation
void NativeRender::setTranslation(float tx, float ty) {
    nAxis->SetTranslationX(tx);
    nAxis->SetTranslationY(ty);
}

void NativeRender::render() {
    if (vw->view.IsNull()) {
        OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "Render", "View Is Null");
        return;
    }
    vw->MustBeResized();
    vw->Redraw();
}

void NativeRender::resize(int w, int h) {
    HILOG_ERROR(NATIVE_TAG, "InPut Size:%{public}d,%{public}d", w, h);
    win->Resize(w, h);
}

void NativeRender::setRotation(float xAngle, float yAngle) { cr->SetRotation(xAngle, yAngle); }

void NativeRender::setZoomLevel(float zoom) {
    nAxis->SetZoomLevel(std::max(0.1f, std::min(zoom, 5.0f))); // 限制缩放范围
}
void NativeRender::setClearColor(float r, float g, float b, float a) { vw->SetClearColor(r, g, b, a); }
void NativeRender::resetView() { vw->ResetView(); }
void NativeRender::SwitchView(std::string view) {
    vw->SwitchView(view);
}
} // namespace NativeOpenCAX