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Image base classes, hide some internal complexity

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This commit is contained in:
Ian Gulliver
2017-08-13 10:52:30 -07:00
parent 00a1577c53
commit 018beba472
2 changed files with 34 additions and 13 deletions
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28
image.h
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@@ -9,11 +9,27 @@
#include "color.h"
#include "coord.h"
class ImageBase {};
template <class C>
class ImageColorBase : public ImageBase {
public:
ImageColorBase() = default;
ImageColorBase(const ImageColorBase<C>&) = default;
virtual ~ImageColorBase() = default;
virtual void ForEach(std::function<void(const C&)> callback) const = 0;
};
template <int32_t X, int32_t Y, class C>
class Image : public Array<Array<C, X>, Y> {
class Image : public Array<Array<C, X>, Y>, ImageColorBase<C> {
public:
constexpr const C& GetPixel(const Coord<2>& coord) const;
void ForEach(std::function<void(const C&)> callback) const override;
void SetPixel(const Coord<2>& coord, const C& color);
void DrawXLine(const Coord<2>& start, const C& color, int32_t length);
void DrawYLine(const Coord<2>& start, const C& color, int32_t length);
@@ -28,6 +44,16 @@ constexpr const C& Image<X, Y, C>::GetPixel(const Coord<2>& coord) const {
return this->at(coord.at(1)).at(coord.at(0));
}
template <int32_t X, int32_t Y, class C>
void Image<X, Y, C>::ForEach(std::function<void(const C&)> callback) const {
for (int32_t y = 0; y < Y; ++y) {
const auto& row = this->at(y);
for (int32_t x = 0; x < X; ++x) {
callback(row.at(x));
}
}
}
template <int32_t X, int32_t Y, class C>
void Image<X, Y, C>::SetPixel(const Coord<2>& coord, const C& color) {
if (coord.at(0) >= X || coord.at(1) >= Y) {