Class XYRasterSparse_RGB8

src/fl/gfx/raster_sparse.h:228–389

A raster of CRGB values. This is a sparse raster, meaning that it will only store the values that are set.

// A raster of CRGB values. This is a sparse raster, meaning that it will
// only store the values that are set.
class XYRasterSparse_RGB8 {
  public:
    XYRasterSparse_RGB8() FL_NOEXCEPT = default;
    XYRasterSparse_RGB8(u16 width, u16 height) {
        setBounds(rect<u16>(0, 0, width, height));
    }
    XYRasterSparse_RGB8(const XYRasterSparse_RGB8 &) FL_NOEXCEPT = default;
    XYRasterSparse_RGB8 &operator=(XYRasterSparse_RGB8 &&) FL_NOEXCEPT = default;
    XYRasterSparse_RGB8(XYRasterSparse_RGB8 &&) FL_NOEXCEPT = default;
    XYRasterSparse_RGB8 &operator=(XYRasterSparse_RGB8 &) FL_NOEXCEPT = default;

    XYRasterSparse_RGB8 &reset() {
        mSparseGrid.clear();
        mCache.clear();
        return *this;
    }

    XYRasterSparse_RGB8 &clear() { return reset(); }

    // Rasterizes point with a CRGB color value
    void rasterize(const vec2<u16> &pt, const CRGB &color) {
        write(pt, color);
    }

    void setSize(u16 width, u16 height) {
        setBounds(rect<u16>(0, 0, width, height));
    }

    void setBounds(const rect<u16> &bounds) {
        mAbsoluteBounds = bounds;
        mAbsoluteBoundsSet = true;
    }

    using iterator = fl::unordered_map<vec2<u16>, CRGB>::iterator;
    using const_iterator = fl::unordered_map<vec2<u16>, CRGB>::const_iterator;

    iterator begin() { return mSparseGrid.begin(); }
    const_iterator begin() const { return mSparseGrid.begin(); }
    iterator end() { return mSparseGrid.end(); }
    const_iterator end() const { return mSparseGrid.end(); }
    fl::size size() const { return mSparseGrid.size(); }
    bool empty() const { return mSparseGrid.empty(); }

    pair<bool, CRGB> at(u16 x, u16 y) const {
        const CRGB *val = mSparseGrid.find_value(vec2<u16>(x, y));
        if (val != nullptr) {
            return {true, *val};
        }
        return {false, CRGB::Black};
    }

    rect<u16> bounds() const {
        if (mAbsoluteBoundsSet) {
            return mAbsoluteBounds;
        }
        return bounds_pixels();
    }