mirror of
git://projects.qi-hardware.com/eda-tools.git
synced 2024-12-23 16:51:10 +02:00
sch2fig/: add Cairo (PNG) back-end (WIP)
This commit is contained in:
parent
4e8870d193
commit
50242899d3
@ -11,10 +11,11 @@
|
||||
#
|
||||
|
||||
NAME = sch2fig
|
||||
OBJS = main.o sch.o lib.o style.o fig.o gfx.o dwg.o text.o misc.o
|
||||
OBJS = main.o sch.o lib.o style.o fig.o cairo.o gfx.o dwg.o text.o misc.o
|
||||
|
||||
CFLAGS = -g -O -Wall -Wextra -Wno-unused-parameter -Wshadow
|
||||
LIBS = -lm
|
||||
CFLAGS = -g -O -Wall -Wextra -Wno-unused-parameter -Wshadow \
|
||||
`pkg-config --cflags cairo`
|
||||
LIBS = -lm `pkg-config --libs cairo`
|
||||
|
||||
include ../common/Makefile.c-common
|
||||
|
||||
|
190
sch2fig/cairo.c
Normal file
190
sch2fig/cairo.c
Normal file
@ -0,0 +1,190 @@
|
||||
/*
|
||||
* cairo.c - Cairo graphics back-end
|
||||
*
|
||||
* 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 <stdint.h>
|
||||
#include <math.h>
|
||||
|
||||
#include <cairo/cairo.h>
|
||||
|
||||
#include "util.h"
|
||||
#include "style.h"
|
||||
#include "gfx.h"
|
||||
#include "cairo.h"
|
||||
|
||||
#if 0
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <assert.h>
|
||||
|
||||
#include "util.h"
|
||||
#include "style.h"
|
||||
#include "text.h"
|
||||
#include "fig.h"
|
||||
#endif
|
||||
|
||||
|
||||
struct cairo_ctx {
|
||||
cairo_t *cr;
|
||||
cairo_surface_t *s;
|
||||
};
|
||||
|
||||
/*
|
||||
* FIG works with 1/1200 in
|
||||
* KiCad works with mil
|
||||
* 1 point = 1/72 in
|
||||
*/
|
||||
|
||||
|
||||
static inline int cx(int x)
|
||||
{
|
||||
return x / 5;
|
||||
}
|
||||
|
||||
|
||||
static inline int cy(int y)
|
||||
{
|
||||
return y / 5;
|
||||
}
|
||||
|
||||
|
||||
static inline float pt(int x)
|
||||
{
|
||||
return cx(x) * 72 * 1.5 / 1200.0;
|
||||
}
|
||||
|
||||
|
||||
static void set_color(cairo_t *cr, int color)
|
||||
{
|
||||
uint32_t c;
|
||||
|
||||
if (color < 0)
|
||||
return;
|
||||
c = color_rgb[color];
|
||||
cairo_set_source_rgb(cr, (c >> 16) / 255.0, ((c >> 8) & 255) / 255.0,
|
||||
(c & 255) / 255.0);
|
||||
}
|
||||
|
||||
|
||||
static void paint(cairo_t *cr, int color, int fill_color)
|
||||
{
|
||||
if (fill_color != COLOR_NONE) {
|
||||
set_color(cr, fill_color);
|
||||
if (color == COLOR_NONE)
|
||||
cairo_fill(cr);
|
||||
else
|
||||
cairo_fill_preserve(cr);
|
||||
}
|
||||
if (color != COLOR_NONE) {
|
||||
set_color(cr, color);
|
||||
cairo_stroke(cr);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* ----- General items ----------------------------------------------------- */
|
||||
|
||||
|
||||
void cr_poly(void *ctx, int points, int x[points], int y[points],
|
||||
int color, int fill_color, unsigned layer)
|
||||
{
|
||||
struct cairo_ctx *cc = ctx;
|
||||
bool closed;
|
||||
int i;
|
||||
|
||||
if (points < 2)
|
||||
return;
|
||||
closed = x[0] == x[points - 1] && y[0] == y[points - 1];
|
||||
|
||||
cairo_new_path(cc->cr);
|
||||
cairo_move_to(cc->cr, cx(x[0]), cy(y[0]));
|
||||
|
||||
for (i = 1; i != points - closed; i++)
|
||||
cairo_line_to(cc->cr, cx(x[i]), cy(y[i]));
|
||||
if (closed)
|
||||
cairo_close_path(cc->cr);
|
||||
|
||||
paint(cc->cr, color, fill_color);
|
||||
}
|
||||
|
||||
|
||||
void cr_circ(void *ctx, int x, int y, int r,
|
||||
int color, int fill_color, unsigned layer)
|
||||
{
|
||||
struct cairo_ctx *cc = ctx;
|
||||
|
||||
cairo_new_path(cc->cr);
|
||||
cairo_arc(cc->cr, cx(x), cy(y), cx(r), 0, 2 * M_PI);
|
||||
paint(cc->cr, color, fill_color);
|
||||
}
|
||||
|
||||
|
||||
void cr_arc(void *ctx, int x, int y, int r, int sa, int ea,
|
||||
int color, int fill_color, unsigned layer)
|
||||
{
|
||||
struct cairo_ctx *cc = ctx;
|
||||
|
||||
cairo_new_path(cc->cr);
|
||||
cairo_arc(cc->cr, cx(x), cy(y), cx(r),
|
||||
-ea / 180.0 * M_PI, -sa / 180.0 * M_PI);
|
||||
paint(cc->cr, color, fill_color);
|
||||
}
|
||||
|
||||
|
||||
void cr_text(void *ctx, int x, int y, const char *s, unsigned size,
|
||||
enum text_align align, int rot, unsigned color, unsigned layer)
|
||||
{
|
||||
// struct cairo_ctx *cc = ctx;
|
||||
}
|
||||
|
||||
|
||||
/* ----- Initializatio and termination ------------------------------------- */
|
||||
|
||||
|
||||
void *cr_init(const char *template, int n_vars, const char **vars)
|
||||
{
|
||||
struct cairo_ctx *cc;
|
||||
|
||||
cc = alloc_type(struct cairo_ctx);
|
||||
cc->s = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 2000, 1414);
|
||||
cc->cr = cairo_create(cc->s);
|
||||
set_color(cc->cr, COLOR_WHITE);
|
||||
cairo_paint(cc->cr);
|
||||
|
||||
cairo_set_line_width(cc->cr, 3);
|
||||
|
||||
return cc;
|
||||
}
|
||||
|
||||
|
||||
void cr_end(void *ctx)
|
||||
{
|
||||
struct cairo_ctx *cc = ctx;
|
||||
|
||||
cairo_surface_write_to_png(cc->s, "test.png");
|
||||
cairo_surface_destroy(cc->s);
|
||||
}
|
||||
|
||||
|
||||
/* ----- Operations -------------------------------------------------------- */
|
||||
|
||||
|
||||
const struct gfx_ops cairo_ops = {
|
||||
// .line = cr_line, @@@ later
|
||||
.poly = cr_poly,
|
||||
.circ = cr_circ,
|
||||
.arc = cr_arc,
|
||||
.text = cr_text,
|
||||
.init = cr_init,
|
||||
.end = cr_end,
|
||||
};
|
22
sch2fig/cairo.h
Normal file
22
sch2fig/cairo.h
Normal file
@ -0,0 +1,22 @@
|
||||
/*
|
||||
* cairo.h - Cairo graphics back-end
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
|
||||
#ifndef CAIRO_H
|
||||
#define CAIRO_H
|
||||
|
||||
#include "gfx.h"
|
||||
|
||||
|
||||
extern const struct gfx_ops cairo_ops;
|
||||
|
||||
#endif /* !CAIRO_H */
|
@ -17,6 +17,7 @@
|
||||
#include <string.h>
|
||||
|
||||
#include "fig.h"
|
||||
#include "cairo.h"
|
||||
#include "gfx.h"
|
||||
#include "lib.h"
|
||||
#include "sch.h"
|
||||
@ -93,7 +94,8 @@ int main(int argc, char **argv)
|
||||
if (argc - optind < 1)
|
||||
usage(*argv);
|
||||
|
||||
gfx_init(&fig_ops, template, n_vars, vars);
|
||||
//gfx_init(&fig_ops, template, n_vars, vars);
|
||||
gfx_init(&cairo_ops, template, n_vars, vars);
|
||||
for (arg = optind; arg != argc; arg++) {
|
||||
if (arg == argc - 1) {
|
||||
struct sch_ctx ctx;
|
||||
|
Loading…
Reference in New Issue
Block a user