82 lines
1.9 KiB
C++
82 lines
1.9 KiB
C++
#ifndef LLMR_MAP_TRANSFORM
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#define LLMR_MAP_TRANSFORM
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#include <llmr/util/vec.hpp>
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#include <llmr/util/mat4.hpp>
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#include <llmr/util/animation.hpp>
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#include <llmr/util/noncopyable.hpp>
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#include <forward_list>
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namespace llmr {
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struct box;
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class Transform : private util::noncopyable {
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public:
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Transform();
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// Animations
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bool needsAnimation() const;
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void updateAnimations();
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void cancelAnimations();
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// Relative changes
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void moveBy(double dx, double dy, double duration = 0);
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void scaleBy(double ds, double cx = -1, double cy = -1, double duration = 0);
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void rotateBy(double cx, double cy, double sx, double sy, double ex, double ey);
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// Absolute changes
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void setScale(double scale, double cx = -1, double cy = -1, double duration = 0);
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void setAngle(double angle, double duration = 0);
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void setZoom(double zoom);
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void setLonLat(double lon, double lat);
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// Getters
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void matrixFor(mat4& matrix, const vec3<int32_t>& id) const;
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float getZoom() const;
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int32_t getIntegerZoom() const;
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double getScale() const;
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double getAngle() const;
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void getLonLat(double& lon, double& lat) const;
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// Temporary
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void mapCornersToBox(uint32_t z, box& b) const;
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private:
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double pixel_x() const;
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double pixel_y() const;
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public:
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// logical dimensions
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uint32_t width = 0;
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uint32_t height = 0;
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// physical (framebuffer) dimensions
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uint32_t fb_width = 0;
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uint32_t fb_height = 0;
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double pixelRatio = 1;
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private:
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double x = 0, y = 0; // pixel values of the map center in the current scale
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double angle = 0;
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double scale = 1;
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double min_scale = pow(2, 0);
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double max_scale = pow(2, 20);
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// tile size
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const int32_t size = 512;
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// cache values for spherical mercator math
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double zc, Bc, Cc;
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std::forward_list<util::animation> animations;
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};
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}
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#endif
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