107 lines
3.1 KiB
C++
107 lines
3.1 KiB
C++
#pragma once
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#include "fl/stdint.h"
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#include "fl/force_inline.h"
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#include "fl/lut.h"
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#include "fl/memory.h"
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#include "fl/map.h"
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#include "fl/namespace.h"
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#include "fl/str.h"
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#include "fl/json.h"
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/* Screenmap maps strip indexes to x,y coordinates. This is used for FastLED Web
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* to map the 1D strip to a 2D screen. Note that the strip can have arbitrary
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* size. this was first motivated by the effort to port theChromancer project to
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* FastLED for the browser.
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*/
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// CONVERT JSON TO JSON2
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// DON'T USE JSON
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namespace fl {
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class string;
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class Json;
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// Forward declaration for internal helper function
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fl::vector<float> jsonArrayToFloatVector(const fl::Json& jsonArray);
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// ScreenMap screen map maps strip indexes to x,y coordinates for a ui
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// canvas in float format.
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// This class is cheap to copy as it uses smart pointers for shared data.
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class ScreenMap {
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public:
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static ScreenMap Circle(int numLeds, float cm_between_leds = 1.5f,
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float cm_led_diameter = 0.5f,
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float completion = 1.0f);
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static ScreenMap DefaultStrip(int numLeds, float cm_between_leds = 1.5f,
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float cm_led_diameter = 0.2f,
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float completion = .9f) {
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return Circle(numLeds, cm_between_leds, cm_led_diameter, completion);
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}
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ScreenMap() = default;
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// is_reverse is false by default for linear layout
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ScreenMap(u32 length, float mDiameter = -1.0f);
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ScreenMap(const vec2f *lut, u32 length, float diameter = -1.0);
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template <u32 N>
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ScreenMap(const vec2f (&lut)[N], float diameter = -1.0)
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: ScreenMap(lut, N, diameter) {}
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ScreenMap(const ScreenMap &other);
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ScreenMap(ScreenMap&& other);
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const vec2f &operator[](u32 x) const;
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void set(u16 index, const vec2f &p);
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void addOffset(const vec2f &p);
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void addOffsetX(float x);
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void addOffsetY(float y);
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vec2f &operator[](u32 x);
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// TODO: change this name to setDiameterLed. Default should be .5f
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// for 5 mm ws lense.
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void setDiameter(float diameter);
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// define the assignment operator
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ScreenMap &operator=(const ScreenMap &other);
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ScreenMap &operator=(ScreenMap &&other);
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vec2f mapToIndex(u32 x) const;
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u32 getLength() const;
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// The diameter each point represents.
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float getDiameter() const;
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// Get the bounding box of all points in the screen map
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vec2f getBounds() const;
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static bool ParseJson(const char *jsonStrScreenMap,
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fl::fl_map<string, ScreenMap> *segmentMaps,
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string *err = nullptr);
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static bool ParseJson(const char *jsonStrScreenMap,
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const char *screenMapName, ScreenMap *screenmap,
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string *err = nullptr);
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static void toJsonStr(const fl::fl_map<string, ScreenMap> &,
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string *jsonBuffer);
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static void toJson(const fl::fl_map<string, ScreenMap> &, fl::Json *doc);
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private:
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static const vec2f &empty();
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u32 length = 0;
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float mDiameter = -1.0f; // Only serialized if it's not > 0.0f.
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LUTXYFLOATPtr mLookUpTable;
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};
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} // namespace fl
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