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eeshow/cro.c: disentangle interfaces

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They all are very similar but still differ in subtle ways.
This commit is contained in:
Werner Almesberger 2016-08-08 17:00:33 -03:00
parent a564b5d03e
commit e874d66ebb
1 changed files with 48 additions and 36 deletions
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84
eeshow/cro.c
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@ -301,36 +301,6 @@ static struct cro_ctx *init_common(int argc, char *const *argv)
} }
static void *cr_png_init(int argc, char *const *argv)
{
struct cro_ctx *cc;
cc = init_common(argc, argv);
/* cr_text_width needs *something* to work with */
cc->s = cairo_image_surface_create(CAIRO_FORMAT_RGB24, 16, 16);
cc->cr = cairo_create(cc->s);
return cc;
}
static void *cr_pdf_init(int argc, char *const *argv)
{
struct cro_ctx *cc;
cc = init_common(argc, argv);
/* cr_text_width needs *something* to work with */
cc->s = cairo_pdf_surface_create(NULL, 16, 16);
cc->cr = cairo_create(cc->s);
return cc;
}
static void end_common(struct cro_ctx *cc, int *w, int *h, int *x, int *y) static void end_common(struct cro_ctx *cc, int *w, int *h, int *x, int *y)
{ {
int xmin, ymin; int xmin, ymin;
@ -366,13 +336,21 @@ static cairo_status_t stream_to_stdout(void *closure,
} }
static void cr_png_end(void *ctx) /* ----- PDF (auto-sizing, using redraw) ----------------------------------- */
{
struct cro_ctx *cc = ctx;
int w, h, stride;
cro_img_end(cc, &w, &h, &stride);
cro_img_write(cc, cc->output_name); static void *cr_pdf_init(int argc, char *const *argv)
{
struct cro_ctx *cc;
cc = init_common(argc, argv);
/* cr_text_width needs *something* to work with */
cc->s = cairo_pdf_surface_create(NULL, 16, 16);
cc->cr = cairo_create(cc->s);
return cc;
} }
@ -432,6 +410,37 @@ static void cr_pdf_end(void *ctx)
} }
/* ----- PNG (auto-sizing, using redraw) ----------------------------------- */
static void *cr_png_init(int argc, char *const *argv)
{
struct cro_ctx *cc;
cc = init_common(argc, argv);
/* cr_text_width needs *something* to work with */
cc->s = cairo_image_surface_create(CAIRO_FORMAT_RGB24, 16, 16);
cc->cr = cairo_create(cc->s);
return cc;
}
static void cr_png_end(void *ctx)
{
struct cro_ctx *cc = ctx;
int w, h, stride;
cro_img_end(cc, &w, &h, &stride);
cro_img_write(cc, cc->output_name);
}
/* ----- Images (auto-sizing, using redraw) -------------------------------- */
uint32_t *cro_img_end(struct cro_ctx *cc, int *w, int *h, int *stride) uint32_t *cro_img_end(struct cro_ctx *cc, int *w, int *h, int *stride)
{ {
uint32_t *data; uint32_t *data;
@ -470,6 +479,9 @@ void cro_img_write(struct cro_ctx *cc, const char *name)
} }
/* ----- Canvas (using redraw) --------------------------------------------- */
void cro_canvas_end(struct cro_ctx *cc, int *w, int *h, int *xmin, int *ymin) void cro_canvas_end(struct cro_ctx *cc, int *w, int *h, int *xmin, int *ymin)
{ {
end_common(cc, w, h, xmin, ymin); end_common(cc, w, h, xmin, ymin);