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eda-tools/eeshow/kicad/pl-render.c

117 lines
2.3 KiB
C

/*
* kicad/pl-render.c - RenderKiCad page layout
*
* Written 2016 by Werner Almesberger
* Copyright 2016 by Werner Almesberger
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include "misc/util.h"
#include "misc/diag.h"
#include "gfx/style.h"
#include "gfx/text.h"
#include "gfx/gfx.h"
#include "kicad/pl-common.h"
#include "kicad/pl.h"
/*
* Eeschema works in mil
* Page layouts are in mm
*/
static int mil(float mm)
{
return mm / 25.4 * 1000;
}
static int coord(int v, int d, int o, int e)
{
return d >= 0 ? o + v : e - v;
}
static void render_text(const struct pl_ctx *pl, const struct pl_obj *obj,
int x, int y)
{
struct text txt = {
.s = obj->s,
.size = mil(obj->ey ? obj->ey : pl->ty),
.x = x,
.y = y,
.rot = 0,
.hor = obj->hor,
.vert = obj->vert,
};
text_fig(&txt, COLOR_COMP_DWG, LAYER_COMP_DWG);
}
static void render_obj(const struct pl_ctx *pl, const struct pl_obj *obj,
unsigned i, int w, int h)
{
int xo = mil(pl->l);
int yo = mil(pl->r);
int xe = w - mil(pl->t);
int ye = h - mil(pl->b);
int x = mil(obj->x + i * obj->incrx);
int y = mil(obj->y + i * obj->incry);
int ex = mil(obj->ex + i * obj->incrx);
int ey = mil(obj->ey + i * obj->incry);
int ww = xe - xo;
int hh = ye - yo;
if (x < 0 || y < 0 || ex < 0 || ey < 0)
return;
if (x > ww || y > hh || ex > ww || ey > hh)
return;
x = coord(x, obj->dx, xo, xe);
y = coord(y, obj->dy, yo, ye);
ex = coord(ex, obj->edx, xo, xe);
ey = coord(ey, obj->edy, yo, ye);
switch (obj->type) {
case pl_obj_rect:
gfx_rect(x, y, ex, ey,
COLOR_COMP_DWG, COLOR_NONE, LAYER_COMP_DWG);
break;
case pl_obj_line: {
int vx[] = { x, ex };
int vy[] = { y, ey };
gfx_poly(2, vx, vy,
COLOR_COMP_DWG, COLOR_NONE, LAYER_COMP_DWG);
}
break;
case pl_obj_text:
render_text(pl, obj, x, y);
break;
default:
break;
}
}
void pl_render(struct pl_ctx *pl, int w, int h)
{
const struct pl_obj *obj;
int i;
for (obj = pl->objs; obj; obj = obj->next)
for (i = 0; i != obj->repeat; i++)
render_obj(pl, obj, i, w, h);
}