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sch2fig/: rename "layer" to "record", and use "layer" for layers in recordings

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Clearing up massively confusing naming.
This commit is contained in:
Werner Almesberger 2016-08-01 11:32:22 -03:00
parent c50e7116cf
commit a03e79de7c
6 changed files with 425 additions and 418 deletions
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2
sch2fig/Makefile
View File

@ -13,7 +13,7 @@
NAME = sch2fig
OBJS = main.o sch-parse.o sch-render.o lib-parse.o lib-render.o \
file.o \
style.o fig.o layer.o cairo.o gfx.o dwg.o text.o misc.o
style.o fig.o record.o cairo.o gfx.o dwg.o text.o misc.o
CFLAGS = -g -O -Wall -Wextra -Wno-unused-parameter -Wshadow \
-Wmissing-prototypes -Wmissing-declarations \

48
sch2fig/cairo.c
View File

@ -25,7 +25,7 @@
#include "style.h"
#include "text.h"
#include "gfx.h"
#include "layer.h"
#include "record.h"
#include "main.h"
#include "cairo.h"
@ -40,7 +40,7 @@
struct cairo_ctx {
struct layer layer; /* must be first */
struct record record; /* must be first */
int xo, yo;
float scale;
@ -48,7 +48,7 @@ struct cairo_ctx {
cairo_t *cr;
cairo_surface_t *s;
struct layer *sheets; /* for PDF */
struct record *sheets; /* for PDF */
unsigned n_sheets;
const char *output_name;
@ -266,7 +266,7 @@ static struct cairo_ctx *init_common(int argc, char *const *argv)
usage(*argv);
}
layer_init(&cc->layer, &real_cairo_ops, cc);
record_init(&cc->record, &real_cairo_ops, cc);
return cc;
}
@ -309,7 +309,7 @@ static void end_common(struct cairo_ctx *cc, int *w, int *h)
cairo_surface_destroy(cc->s);
cairo_destroy(cc->cr);
layer_bbox(&cc->layer, &x, &y, w, h);
record_bbox(&cc->record, &x, &y, w, h);
// fprintf(stderr, "%dx%d%+d%+d\n", *w, *h, x, y);
cc->xo = -cd(cc, x);
@ -337,8 +337,8 @@ static void cr_png_end(void *ctx)
CAIRO_FONT_WEIGHT_BOLD);
cairo_set_line_width(cc->cr, 2);
layer_replay(&cc->layer);
layer_destroy(&cc->layer);
record_replay(&cc->record);
record_destroy(&cc->record);
if (cc->output_name)
cairo_surface_write_to_png(cc->s, cc->output_name);
@ -350,13 +350,13 @@ static void cr_pdf_new_sheet(void *ctx)
struct cairo_ctx *cc = ctx;
cc->n_sheets++;
cc->sheets = realloc(cc->sheets, sizeof(struct layer) * cc->n_sheets);
cc->sheets = realloc(cc->sheets, sizeof(struct record) * cc->n_sheets);
if (!cc->sheets) {
perror("realloc");
exit(1);
}
cc->sheets[cc->n_sheets - 1] = cc->layer;
layer_wipe(&cc->layer);
cc->sheets[cc->n_sheets - 1] = cc->record;
record_wipe(&cc->record);
}
@ -379,14 +379,14 @@ static void cr_pdf_end(void *ctx)
set_color(cc->cr, COLOR_WHITE);
cairo_paint(cc->cr);
layer_replay(cc->sheets + i);
layer_destroy(cc->sheets + i);
record_replay(cc->sheets + i);
record_destroy(cc->sheets + i);
cairo_show_page(cc->cr);
}
layer_replay(&cc->layer);
layer_destroy(&cc->layer);
record_replay(&cc->record);
record_destroy(&cc->record);
cairo_show_page(cc->cr);
@ -400,11 +400,11 @@ static void cr_pdf_end(void *ctx)
const struct gfx_ops cairo_png_ops = {
.name = "png",
.line = layer_line,
.poly = layer_poly,
.circ = layer_circ,
.arc = layer_arc,
.text = layer_text,
.line = record_line,
.poly = record_poly,
.circ = record_circ,
.arc = record_arc,
.text = record_text,
.text_width = cr_text_width,
.init = cr_png_init,
.end = cr_png_end,
@ -412,11 +412,11 @@ const struct gfx_ops cairo_png_ops = {
const struct gfx_ops cairo_pdf_ops = {
.name = "pdf",
.line = layer_line,
.poly = layer_poly,
.circ = layer_circ,
.arc = layer_arc,
.text = layer_text,
.line = record_line,
.poly = record_poly,
.circ = record_circ,
.arc = record_arc,
.text = record_text,
.text_width = cr_text_width,
.init = cr_pdf_init,
.new_sheet = cr_pdf_new_sheet,

336
sch2fig/layer.c
View File

@ -1,336 +0,0 @@
/*
* layer.h - Separate graphics operations by layers and replay
*
* 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 <stdlib.h>
#include <limits.h>
#include <math.h>
#include "util.h"
#include "style.h"
#include "gfx.h"
#include "text.h"
#include "layer.h"
struct layer_obj {
enum lo_type {
lo_line,
lo_rect,
lo_poly,
lo_circ,
lo_arc,
lo_text,
} type;
int x, y;
int color, fill_color;
union {
struct {
int ex, ey;
} line;
struct {
int ex, ey;
} rect;
struct {
unsigned n;
int *vx, *vy;
} poly;
struct {
int r;
} circ;
struct {
int r;
int sa, ea;
} arc;
struct {
char *s;
unsigned size;
enum text_align align;
int rot;
} text;
} u;
struct layer_obj *next;
};
static void bb(struct layer *layer, int x, int y)
{
if (layer->xmin > x)
layer->xmin = x;
if (layer->ymin > y)
layer->ymin = y;
if (layer->xmax < x)
layer->xmax = x;
if (layer->ymax < y)
layer->ymax = y;
}
static void bb_rot(struct layer *layer, int x, int y, int rot)
{
double a = -rot / 180.0 * M_PI;
// @@@ figure this out later
return;
bb(layer, cos(a) * x + sin(a) * y, cos(a) * y - sin(a) * x);
}
static struct layer_obj *new_obj(struct layer *lc, enum lo_type type,
int color, int fill_color, unsigned layer)
{
struct layer_objs **objs;
struct layer_objs *new_objs;
struct layer_obj *new_obj;
for (objs = &lc->objs; *objs; objs = &(*objs)->next) {
if ((*objs)->layer == layer)
goto this_layer;
if ((*objs)->layer < layer)
break;
}
new_objs = alloc_type(struct layer_objs);
new_objs->layer = layer;
new_objs->obj = NULL;
new_objs->next_obj = &new_objs->obj;
new_objs->next = *objs;
*objs = new_objs;
this_layer:
new_obj = alloc_type(struct layer_obj);
new_obj->type = type;
new_obj->color = color;
new_obj->fill_color = fill_color;
new_obj->next = NULL;
*(*objs)->next_obj = new_obj;
(*objs)->next_obj = &new_obj->next;
return new_obj;
}
void layer_line(void *ctx, int sx, int sy, int ex, int ey,
int color, unsigned layer)
{
struct layer *lc = ctx;
struct layer_obj *obj = new_obj(ctx, lo_line, color, COLOR_NONE, layer);
bb(lc, sx, sy);
bb(lc, ex, ey);
obj->x = sx;
obj->y = sy;
obj->u.line.ex = ex;
obj->u.line.ey = ey;
}
void layer_rect(void *ctx, int sx, int sy, int ex, int ey,
int color, int fill_color, unsigned layer)
{
struct layer *lc = ctx;
struct layer_obj *obj = new_obj(ctx, lo_rect, color, fill_color, layer);
bb(lc, sx, sy);
bb(lc, ex, ey);
obj->x = sx;
obj->y = sy;
obj->u.rect.ex = ex;
obj->u.rect.ey = ey;
}
void layer_poly(void *ctx,
int points, const int x[points], const int y[points],
int color, int fill_color, unsigned layer)
{
struct layer *lc = ctx;
struct layer_obj *obj = new_obj(ctx, lo_poly, color, fill_color, layer);
int i;
unsigned size;
for (i = 0; i != points; i++)
bb(lc, x[i], y[i]);
obj->u.poly.n = points;
size = sizeof(int) * points;
obj->u.poly.vx = alloc_size(size);
obj->u.poly.vy = alloc_size(size);
memcpy(obj->u.poly.vx, x, size);
memcpy(obj->u.poly.vy, y, size);
}
void layer_circ(void *ctx, int x, int y, int r,
int color, int fill_color, unsigned layer)
{
struct layer *lc = ctx;
struct layer_obj *obj = new_obj(ctx, lo_circ, color, fill_color, layer);
bb(lc, x - r, y - r);
bb(lc, x + r, y + r);
obj->x = x;
obj->y = y;
obj->u.circ.r = r;
}
void layer_arc(void *ctx, int x, int y, int r, int sa, int ea,
int color, int fill_color, unsigned layer)
{
struct layer *lc = ctx;
struct layer_obj *obj = new_obj(ctx, lo_arc, color, fill_color, layer);
bb(lc, x - r, y - r);
bb(lc, x + r, y + r);
obj->x = x;
obj->y = y;
obj->u.arc.r = r;
obj->u.arc.sa = sa;
obj->u.arc.ea = ea;
}
void layer_text(void *ctx, int x, int y, const char *s, unsigned size,
enum text_align align, int rot, unsigned color, unsigned layer)
{
struct layer *lc = ctx;
struct layer_obj *obj = new_obj(ctx, lo_text, color, COLOR_NONE, layer);
unsigned width = lc->ops->text_width(lc->user, s, size);
bb_rot(lc, x, y - size, rot);
bb_rot(lc, x + width, y, rot);
obj->x = x;
obj->y = y;
obj->u.text.s = stralloc(s);
obj->u.text.size = size;
obj->u.text.align = align;
obj->u.text.rot = rot;
}
void layer_init(struct layer *layer, const struct gfx_ops *ops, void *user)
{
layer->ops = ops;
layer->user = user;
layer->xmin = layer->ymin = INT_MAX;
layer->xmax = layer->ymax = INT_MIN;
layer->objs = NULL;
}
void layer_wipe(struct layer *layer)
{
layer->objs = NULL;
}
void layer_replay(const struct layer *layer)
{
const struct gfx_ops *ops = layer->ops;
void *ctx = layer->user;
const struct layer_objs *objs;
const struct layer_obj *obj;
for (objs = layer->objs; objs; objs = objs->next)
for (obj = objs->obj; obj; obj = obj->next)
switch (obj->type) {
case lo_line:
ops->line(ctx, obj->x, obj->y,
obj->u.line.ex, obj->u.line.ey,
obj->color, objs->layer);
break;
case lo_rect:
ops->rect(ctx, obj->x, obj->y,
obj->u.rect.ex, obj->u.rect.ey,
obj->color, obj->fill_color, objs->layer);
break;
case lo_poly:
ops->poly(ctx, obj->u.poly.n,
obj->u.poly.vx, obj->u.poly.vy,
obj->color, obj->fill_color, objs->layer);
break;
case lo_circ:
ops->circ(ctx, obj->x, obj->y,
obj->u.circ.r,
obj->color, obj->fill_color, objs->layer);
break;
case lo_arc:
ops->arc(ctx, obj->x, obj->y, obj->u.arc.r,
obj->u.arc.sa, obj->u.arc.ea,
obj->color, obj->fill_color, objs->layer);
break;
case lo_text:
ops->text(ctx, obj->x, obj->y, obj->u.text.s,
obj->u.text.size, obj->u.text.align,
obj->u.text.rot,
obj->color, objs->layer);
break;
default:
abort();
}
}
void layer_bbox(const struct layer *layer, int *x, int *y, int *w, int *h)
{
if (x)
*x = layer->xmin;
if (y)
*y = layer->ymin;
if (w)
*w = layer->xmax - layer->xmin + 1;
if (h)
*h = layer->ymax - layer->ymin + 1;
}
static void layer_obj_destroy(struct layer_obj *obj)
{
switch (obj->type) {
case lo_poly:
free(obj->u.poly.vx);
free(obj->u.poly.vy);
break;
case lo_text:
free(obj->u.text.s);
break;
default:
break;
}
free(obj);
}
void layer_destroy(struct layer *layer)
{
struct layer_objs *next_objs;
struct layer_obj *next_obj;
while (layer->objs) {
next_objs = layer->objs->next;
while (layer->objs->obj) {
next_obj = layer->objs->obj->next;
layer_obj_destroy(layer->objs->obj);
layer->objs->obj = next_obj;
}
free(layer->objs);
layer->objs = next_objs;
}
}

57
sch2fig/layer.h
View File

@ -1,57 +0,0 @@
/*
* layer.h - Separate graphics operations by layers and replay
*
* 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 LAYER_H
#define LAYER_H
#include "gfx.h"
struct layer_obj;
struct layer_objs {
unsigned layer;
struct layer_obj *obj;
struct layer_obj **next_obj;
struct layer_objs *next;
};
struct layer {
const struct gfx_ops *ops;
void *user;
int xmin, xmax;
int ymin, ymax;
struct layer_objs *objs;
};
void layer_line(void *ctx, int sx, int sy, int ex, int ey,
int color, unsigned layer);
void layer_rect(void *ctx, int sx, int sy, int ex, int ey,
int color, int fill_color, unsigned layer);
void layer_poly(void *ctx, int points, const int x[points], const int y[points],
int color, int fill_color, unsigned layer);
void layer_circ(void *ctx, int x, int y, int r,
int color, int fill_color, unsigned layer);
void layer_arc(void *ctx, int x, int y, int r, int sa, int ea,
int color, int fill_color, unsigned layer);
void layer_text(void *ctx, int x, int y, const char *s, unsigned size,
enum text_align align, int rot, unsigned color, unsigned layer);
void layer_init(struct layer *layer, const struct gfx_ops *ops, void *user);
void layer_wipe(struct layer *layer);
void layer_replay(const struct layer *layer);
void layer_bbox(const struct layer *layer, int *x, int *y, int *w, int *h);
void layer_destroy(struct layer *layer);
#endif /* !LAYER_H */

342
sch2fig/record.c Normal file
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@ -0,0 +1,342 @@
/*
* record.c - Record graphics operations by layers and replay
*
* 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 <stdlib.h>
#include <limits.h>
#include <math.h>
#include "util.h"
#include "style.h"
#include "gfx.h"
#include "text.h"
#include "record.h"
struct record_obj {
enum ro_type {
ro_line,
ro_rect,
ro_poly,
ro_circ,
ro_arc,
ro_text,
} type;
int x, y;
int color, fill_color;
union {
struct {
int ex, ey;
} line;
struct {
int ex, ey;
} rect;
struct {
unsigned n;
int *vx, *vy;
} poly;
struct {
int r;
} circ;
struct {
int r;
int sa, ea;
} arc;
struct {
char *s;
unsigned size;
enum text_align align;
int rot;
} text;
} u;
struct record_obj *next;
};
static void bb(struct record *rec, int x, int y)
{
if (rec->xmin > x)
rec->xmin = x;
if (rec->ymin > y)
rec->ymin = y;
if (rec->xmax < x)
rec->xmax = x;
if (rec->ymax < y)
rec->ymax = y;
}
static void bb_rot(struct record *rec, int x, int y, int rot)
{
double a = -rot / 180.0 * M_PI;
// @@@ figure this out later
return;
bb(rec, cos(a) * x + sin(a) * y, cos(a) * y - sin(a) * x);
}
static struct record_obj *new_obj(struct record *rec, enum ro_type type,
int color, int fill_color, unsigned layer)
{
struct record_layer **curr_layer;
struct record_layer *new_layer;
struct record_obj *new_obj;
for (curr_layer = &rec->layers; *curr_layer;
curr_layer= &(*curr_layer)->next) {
if ((*curr_layer)->layer == layer)
goto this_layer;
if ((*curr_layer)->layer < layer)
break;
}
new_layer = alloc_type(struct record_layer);
new_layer->layer = layer;
new_layer->objs = NULL;
new_layer->next_obj = &new_layer->objs;
new_layer->next = *curr_layer;
*curr_layer = new_layer;
this_layer:
new_obj = alloc_type(struct record_obj);
new_obj->type = type;
new_obj->color = color;
new_obj->fill_color = fill_color;
new_obj->next = NULL;
*(*curr_layer)->next_obj = new_obj;
(*curr_layer)->next_obj = &new_obj->next;
return new_obj;
}
void record_line(void *ctx, int sx, int sy, int ex, int ey,
int color, unsigned layer)
{
struct record *rec = ctx;
struct record_obj *obj =
new_obj(rec, ro_line, color, COLOR_NONE, layer);
bb(rec, sx, sy);
bb(rec, ex, ey);
obj->x = sx;
obj->y = sy;
obj->u.line.ex = ex;
obj->u.line.ey = ey;
}
void record_rect(void *ctx, int sx, int sy, int ex, int ey,
int color, int fill_color, unsigned layer)
{
struct record *rec = ctx;
struct record_obj *obj =
new_obj(rec, ro_rect, color, fill_color, layer);
bb(rec, sx, sy);
bb(rec, ex, ey);
obj->x = sx;
obj->y = sy;
obj->u.rect.ex = ex;
obj->u.rect.ey = ey;
}
void record_poly(void *ctx,
int points, const int x[points], const int y[points],
int color, int fill_color, unsigned layer)
{
struct record *rec = ctx;
struct record_obj *obj =
new_obj(ctx, ro_poly, color, fill_color, layer);
int i;
unsigned size;
for (i = 0; i != points; i++)
bb(rec, x[i], y[i]);
obj->u.poly.n = points;
size = sizeof(int) * points;
obj->u.poly.vx = alloc_size(size);
obj->u.poly.vy = alloc_size(size);
memcpy(obj->u.poly.vx, x, size);
memcpy(obj->u.poly.vy, y, size);
}
void record_circ(void *ctx, int x, int y, int r,
int color, int fill_color, unsigned layer)
{
struct record *rec = ctx;
struct record_obj *obj =
new_obj(ctx, ro_circ, color, fill_color, layer);
bb(rec, x - r, y - r);
bb(rec, x + r, y + r);
obj->x = x;
obj->y = y;
obj->u.circ.r = r;
}
void record_arc(void *ctx, int x, int y, int r, int sa, int ea,
int color, int fill_color, unsigned layer)
{
struct record *rec = ctx;
struct record_obj *obj = new_obj(ctx, ro_arc, color, fill_color, layer);
bb(rec, x - r, y - r);
bb(rec, x + r, y + r);
obj->x = x;
obj->y = y;
obj->u.arc.r = r;
obj->u.arc.sa = sa;
obj->u.arc.ea = ea;
}
void record_text(void *ctx, int x, int y, const char *s, unsigned size,
enum text_align align, int rot, unsigned color, unsigned layer)
{
struct record *rec = ctx;
struct record_obj *obj =
new_obj(ctx, ro_text, color, COLOR_NONE, layer);
unsigned width = rec->ops->text_width(rec->user, s, size);
bb_rot(rec, x, y - size, rot);
bb_rot(rec, x + width, y, rot);
obj->x = x;
obj->y = y;
obj->u.text.s = stralloc(s);
obj->u.text.size = size;
obj->u.text.align = align;
obj->u.text.rot = rot;
}
void record_init(struct record *rec, const struct gfx_ops *ops, void *user)
{
rec->ops = ops;
rec->user = user;
rec->xmin = rec->ymin = INT_MAX;
rec->xmax = rec->ymax = INT_MIN;
rec->layers = NULL;
}
void record_wipe(struct record *rec)
{
rec->layers = NULL;
}
void record_replay(const struct record *rec)
{
const struct gfx_ops *ops = rec->ops;
void *ctx = rec->user;
const struct record_layer *layer;
const struct record_obj *obj;
for (layer = rec->layers; layer; layer = layer->next)
for (obj = layer->objs; obj; obj = obj->next)
switch (obj->type) {
case ro_line:
ops->line(ctx, obj->x, obj->y,
obj->u.line.ex, obj->u.line.ey,
obj->color, layer->layer);
break;
case ro_rect:
ops->rect(ctx, obj->x, obj->y,
obj->u.rect.ex, obj->u.rect.ey,
obj->color, obj->fill_color, layer->layer);
break;
case ro_poly:
ops->poly(ctx, obj->u.poly.n,
obj->u.poly.vx, obj->u.poly.vy,
obj->color, obj->fill_color, layer->layer);
break;
case ro_circ:
ops->circ(ctx, obj->x, obj->y,
obj->u.circ.r,
obj->color, obj->fill_color, layer->layer);
break;
case ro_arc:
ops->arc(ctx, obj->x, obj->y, obj->u.arc.r,
obj->u.arc.sa, obj->u.arc.ea,
obj->color, obj->fill_color, layer->layer);
break;
case ro_text:
ops->text(ctx, obj->x, obj->y, obj->u.text.s,
obj->u.text.size, obj->u.text.align,
obj->u.text.rot,
obj->color, layer->layer);
break;
default:
abort();
}
}
void record_bbox(const struct record *rec, int *x, int *y, int *w, int *h)
{
if (x)
*x = rec->xmin;
if (y)
*y = rec->ymin;
if (w)
*w = rec->xmax - rec->xmin + 1;
if (h)
*h = rec->ymax - rec->ymin + 1;
}
static void record_obj_destroy(struct record_obj *obj)
{
switch (obj->type) {
case ro_poly:
free(obj->u.poly.vx);
free(obj->u.poly.vy);
break;
case ro_text:
free(obj->u.text.s);
break;
default:
break;
}
free(obj);
}
void record_destroy(struct record *rec)
{
struct record_layer *next_layer;
struct record_obj *next_obj;
while (rec->layers) {
next_layer = rec->layers->next;
while (rec->layers->objs) {
next_obj = rec->layers->objs->next;
record_obj_destroy(rec->layers->objs);
rec->layers->objs = next_obj;
}
free(rec->layers);
rec->layers = next_layer;
}
}

58
sch2fig/record.h Normal file
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@ -0,0 +1,58 @@
/*
* record.h - Record graphics operations by layers and replay
*
* 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 RECORD_H
#define RECORD_H
#include "gfx.h"
struct record_obj;
struct record_layer {
unsigned layer;
struct record_obj *objs;
struct record_obj **next_obj;
struct record_layer *next;
};
struct record {
const struct gfx_ops *ops;
void *user;
int xmin, xmax;
int ymin, ymax;
struct record_layer *layers;
};
void record_line(void *ctx, int sx, int sy, int ex, int ey,
int color, unsigned layer);
void record_rect(void *ctx, int sx, int sy, int ex, int ey,
int color, int fill_color, unsigned layer);
void record_poly(void *ctx,
int points, const int x[points], const int y[points],
int color, int fill_color, unsigned layer);
void record_circ(void *ctx, int x, int y, int r,
int color, int fill_color, unsigned layer);
void record_arc(void *ctx, int x, int y, int r, int sa, int ea,
int color, int fill_color, unsigned layer);
void record_text(void *ctx, int x, int y, const char *s, unsigned size,
enum text_align align, int rot, unsigned color, unsigned layer);
void record_init(struct record *rec, const struct gfx_ops *ops, void *user);
void record_wipe(struct record *rec);
void record_replay(const struct record *rec);
void record_bbox(const struct record *rec, int *x, int *y, int *w, int *h);
void record_destroy(struct record *rec);
#endif /* !RECORD_H */