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drape/viewport.hpp
33 строки
888 B
r.kuznetsov
[drape][metal] Added states.
25 сен 2018, 12:33
25 сен 2018, 12:33
a81f1fc
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#pragma once #include "drape/graphics_context.hpp" #include "geometry/point2d.hpp" namespace dp { // Pixel ratio independent viewport implementation. // pixelRatio is ratio between physical pixels and device-independent pixels for the window. class Viewport { public: // x0, y0, w, h is device-independent pixels Viewport(uint32_t x0, uint32_t y0, uint32_t w, uint32_t h); // On iOS we must multiply this on scaleFactor. // On Android we get true size from surface. void SetViewport(uint32_t x0, uint32_t y0, uint32_t w, uint32_t h); uint32_t GetX0() const; uint32_t GetY0() const; uint32_t GetWidth() const; uint32_t GetHeight() const; // Apply viewport to graphics pipeline with convert start point and size to physical pixels. void Apply(ref_ptr<dp::GraphicsContext> context) const; private: m2::PointU m_zero; m2::PointU m_size; }; } // namespace dp