nappgui-sys 0.2.0

Rust raw bindings to NAppGUI
Documentation 
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/*
 * NAppGUI Cross-platform C SDK
 * 2015-2025 Francisco Garcia Collado
 * MIT Licence
 * https://nappgui.com/en/legal/license.html
 *
 * File: drawg.cpp
 *
 */

/* Drawing 2D Geometry entities */

#include "drawg.h"
#include "drawg.hpp"
#include "draw.h"
#include <geom2d/obb2d.h>
#include <geom2d/pol2d.h>
#include <geom2d/v2d.h>
#include <core/heap.h>
#include <sewer/cassert.h>

/*---------------------------------------------------------------------------*/

void draw_v2df(DCtx *ctx, const drawop_t op, const V2Df *v2d, const real32_t radius)
{
    cassert_no_null(v2d);
    draw_circle(ctx, op, v2d->x, v2d->y, radius);
}

/*---------------------------------------------------------------------------*/

void draw_v2dd(DCtx *ctx, const drawop_t op, const V2Dd *v2d, const real64_t radius)
{
    cassert_no_null(v2d);
    draw_circle(ctx, op, (real32_t)v2d->x, (real32_t)v2d->y, (real32_t)radius);
}

/*---------------------------------------------------------------------------*/

template < typename real >
static void i_v2d(DCtx *ctx, const drawop_t op, const V2D< real > *v2d, const real radius)
{
    cassert_no_null(v2d);
    draw_circle(ctx, op, (real32_t)v2d->x, (real32_t)v2d->y, (real32_t)radius);
}

/*---------------------------------------------------------------------------*/

void draw_seg2df(DCtx *ctx, const Seg2Df *seg)
{
    cassert_no_null(seg);
    draw_line(ctx, seg->p0.x, seg->p0.y, seg->p1.x, seg->p1.y);
}

/*---------------------------------------------------------------------------*/

void draw_seg2dd(DCtx *ctx, const Seg2Dd *seg)
{
    cassert_no_null(seg);
    draw_line(ctx, (real32_t)seg->p0.x, (real32_t)seg->p0.y, (real32_t)seg->p1.x, (real32_t)seg->p1.y);
}

/*---------------------------------------------------------------------------*/

template < typename real >
static void i_r2d(DCtx *ctx, const drawop_t op, const R2D< real > *rect)
{
    cassert_no_null(rect);
    draw_rect(ctx, op, (real32_t)rect->pos.x, (real32_t)rect->pos.y, (real32_t)rect->size.width, (real32_t)rect->size.height);
}

/*---------------------------------------------------------------------------*/

void draw_r2df(DCtx *ctx, const drawop_t op, const R2Df *rect)
{
    cassert_no_null(rect);
    draw_rect(ctx, op, rect->pos.x, rect->pos.y, rect->size.width, rect->size.height);
}

/*---------------------------------------------------------------------------*/

void draw_r2dd(DCtx *ctx, const drawop_t op, const R2Dd *rect)
{
    cassert_no_null(rect);
    draw_rect(ctx, op, (real32_t)rect->pos.x, (real32_t)rect->pos.y, (real32_t)rect->size.width, (real32_t)rect->size.height);
}

/*---------------------------------------------------------------------------*/

template < typename real >
static void i_seg2d(DCtx *ctx, const Seg2D< real > *seg)
{
    cassert_no_null(seg);
    draw_line(ctx, (real32_t)seg->p0.x, (real32_t)seg->p0.y, (real32_t)seg->p1.x, (real32_t)seg->p1.y);
}

/*---------------------------------------------------------------------------*/

void draw_cir2df(DCtx *ctx, const drawop_t op, const Cir2Df *cir)
{
    cassert_no_null(cir);
    draw_circle(ctx, op, cir->c.x, cir->c.y, cir->r);
}

/*---------------------------------------------------------------------------*/

void draw_cir2dd(DCtx *ctx, const drawop_t op, const Cir2Dd *cir)
{
    cassert_no_null(cir);
    draw_circle(ctx, op, (real32_t)cir->c.x, (real32_t)cir->c.y, (real32_t)cir->r);
}

/*---------------------------------------------------------------------------*/

template < typename real >
static void i_cir2d(DCtx *ctx, const drawop_t op, const Cir2D< real > *cir)
{
    cassert_no_null(cir);
    draw_circle(ctx, op, (real32_t)cir->c.x, (real32_t)cir->c.y, (real32_t)cir->r);
}

/*---------------------------------------------------------------------------*/

void draw_box2df(DCtx *ctx, const drawop_t op, const Box2Df *box)
{
    cassert_no_null(box);
    draw_rect(ctx, op, box->min.x, box->min.y, (box->max.x - box->min.x), (box->max.y - box->min.y));
}

/*---------------------------------------------------------------------------*/

void draw_box2dd(DCtx *ctx, const drawop_t op, const Box2Dd *box)
{
    cassert_no_null(box);
    draw_rect(ctx, op, (real32_t)box->min.x, (real32_t)box->min.y, (real32_t)(box->max.x - box->min.x), (real32_t)(box->max.y - box->min.y));
}

/*---------------------------------------------------------------------------*/

template < typename real >
static void i_box2d(DCtx *ctx, const drawop_t op, const Box2D< real > *box)
{
    cassert_no_null(box);
    draw_rect(ctx, op, (real32_t)box->min.x, (real32_t)box->min.y, (real32_t)(box->max.x - box->min.x), (real32_t)(box->max.y - box->min.y));
}

/*---------------------------------------------------------------------------*/

void draw_obb2df(DCtx *ctx, const drawop_t op, const OBB2Df *obb)
{
    const V2Df *v = obb2d_cornersf(obb);
    cassert_no_null(obb);
    draw_polygon(ctx, op, v, 4);
}

/*---------------------------------------------------------------------------*/

void draw_obb2dd(DCtx *ctx, const drawop_t op, const OBB2Dd *obb)
{
    const V2Dd *vd = obb2d_cornersd(obb);
    V2Df vf[4];
    cassert_no_null(obb);
    v2d_tofn(vf, vd, 4);
    draw_polygon(ctx, op, vf, 4);
}

/*---------------------------------------------------------------------------*/

template < typename real >
static void i_obb2d(DCtx *ctx, const drawop_t op, const OBB2D< real > *obb)
{
    const V2D< real > *v = OBB2D< real >::corners(obb);
    cassert_no_null(obb);
    cassert(sizeof(real) == 4);
    draw_polygon(ctx, op, (const V2Df *)v, 4);
}

/*---------------------------------------------------------------------------*/

template <>
void i_obb2d(DCtx *ctx, const drawop_t op, const OBB2D< real64_t > *obb)
{
    const V2D< real64_t > *vd = OBB2D< real64_t >::corners(obb);
    V2Df vf[4];
    cassert_no_null(obb);
    v2d_tofn(vf, (const V2Dd *)vd, 4);
    draw_polygon(ctx, op, vf, 4);
}

/*---------------------------------------------------------------------------*/

void draw_tri2df(DCtx *ctx, const drawop_t op, const Tri2Df *tri)
{
    draw_polygon(ctx, op, (const V2Df *)tri, 3);
}

/*---------------------------------------------------------------------------*/

void draw_tri2dd(DCtx *ctx, const drawop_t op, const Tri2Dd *tri)
{
    const V2Dd *vd = (const V2Dd *)tri;
    V2Df vf[3];
    cassert_no_null(tri);
    v2d_tofn(vf, vd, 3);
    draw_polygon(ctx, op, vf, 3);
}

/*---------------------------------------------------------------------------*/

template < typename real >
static void i_tri2d(DCtx *ctx, const drawop_t op, const Tri2D< real > *tri)
{
    cassert_no_null(tri);
    cassert(sizeof(real) == 4);
    draw_polygon(ctx, op, (const V2Df *)tri, 3);
}

/*---------------------------------------------------------------------------*/

template <>
void i_tri2d(DCtx *ctx, const drawop_t op, const Tri2D< real64_t > *tri)
{
    const V2D< real64_t > *vd = (const V2D< real64_t > *)tri;
    V2Df vf[3];
    cassert_no_null(tri);
    v2d_tofn(vf, (const V2Dd *)vd, 3);
    draw_polygon(ctx, op, vf, 3);
}

/*---------------------------------------------------------------------------*/

void draw_pol2df(DCtx *ctx, const drawop_t op, const Pol2Df *pol)
{
    const V2Df *v = pol2d_pointsf(pol);
    uint32_t n = pol2d_nf(pol);
    draw_polygon(ctx, op, v, n);
}

/*---------------------------------------------------------------------------*/

void draw_pol2dd(DCtx *ctx, const drawop_t op, const Pol2Dd *pol)
{
    const V2Dd *vd = pol2d_pointsd(pol);
    uint32_t n = pol2d_nd(pol);
    V2Df *vf = heap_new_n(n, V2Df);
    v2d_tofn(vf, vd, n);
    draw_polygon(ctx, op, vf, n);
    heap_delete_n(&vf, n, V2Df);
}

/*---------------------------------------------------------------------------*/

template < typename real >
static void i_pol2d(DCtx *ctx, const drawop_t op, const Pol2D< real > *pol)
{
    const V2D< real > *v = Pol2D< real >::points(pol);
    uint32_t n = Pol2D< real >::n(pol);
    cassert(sizeof(real) == 4);
    draw_polygon(ctx, op, (const V2Df *)v, n);
}

/*---------------------------------------------------------------------------*/

template <>
void i_pol2d(DCtx *ctx, const drawop_t op, const Pol2D< real64_t > *pol)
{
    const V2D< real64_t > *vd = Pol2D< real64_t >::points(pol);
    uint32_t n = Pol2D< real64_t >::n(pol);
    V2Df *vf = heap_new_n(n, V2Df);
    v2d_tofn(vf, (const V2Dd *)vd, n);
    draw_polygon(ctx, op, vf, n);
    heap_delete_n(&vf, n, V2Df);
}

/*---------------------------------------------------------------------------*/

template <>
void (*Draw< real32_t >::v2d)(DCtx *, const drawop_t, const V2D< real32_t > *, const real32_t) = i_v2d< real32_t >;

template <>
void (*Draw< real64_t >::v2d)(DCtx *, const drawop_t, const V2D< real64_t > *, const real64_t) = i_v2d< real64_t >;

template <>
void (*Draw< real32_t >::seg2d)(DCtx *, const Seg2D< real32_t > *) = i_seg2d< real32_t >;

template <>
void (*Draw< real64_t >::seg2d)(DCtx *, const Seg2D< real64_t > *) = i_seg2d< real64_t >;

template <>
void (*Draw< real32_t >::r2d)(DCtx *, const drawop_t, const R2D< real32_t > *) = i_r2d< real32_t >;

template <>
void (*Draw< real64_t >::r2d)(DCtx *, const drawop_t, const R2D< real64_t > *) = i_r2d< real64_t >;

template <>
void (*Draw< real32_t >::cir2d)(DCtx *, const drawop_t, const Cir2D< real32_t > *) = i_cir2d< real32_t >;

template <>
void (*Draw< real64_t >::cir2d)(DCtx *, const drawop_t, const Cir2D< real64_t > *) = i_cir2d< real64_t >;

template <>
void (*Draw< real32_t >::box2d)(DCtx *, const drawop_t, const Box2D< real32_t > *) = i_box2d< real32_t >;

template <>
void (*Draw< real64_t >::box2d)(DCtx *, const drawop_t, const Box2D< real64_t > *) = i_box2d< real64_t >;

template <>
void (*Draw< real32_t >::obb2d)(DCtx *, const drawop_t, const OBB2D< real32_t > *) = i_obb2d< real32_t >;

template <>
void (*Draw< real64_t >::obb2d)(DCtx *, const drawop_t, const OBB2D< real64_t > *) = i_obb2d< real64_t >;

template <>
void (*Draw< real32_t >::tri2d)(DCtx *, const drawop_t, const Tri2D< real32_t > *) = i_tri2d< real32_t >;

template <>
void (*Draw< real64_t >::tri2d)(DCtx *, const drawop_t, const Tri2D< real64_t > *) = i_tri2d< real64_t >;

template <>
void (*Draw< real32_t >::pol2d)(DCtx *, const drawop_t, const Pol2D< real32_t > *) = i_pol2d< real32_t >;

template <>
void (*Draw< real64_t >::pol2d)(DCtx *, const drawop_t, const Pol2D< real64_t > *) = i_pol2d< real64_t >;