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better postscript page align

This commit is contained in:
Stefan Frederik 2020-12-16 18:56:38 +01:00
parent 5b4d6ab640
commit 887280d8a2
1 changed files with 7 additions and 5 deletions
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12
src/psprint.c
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@ -48,7 +48,7 @@ static void set_lw(void)
static void set_ps_colors(unsigned int pixel)
{
if(color_ps) fprintf(fd, "%g %g %g setrgbcolor\n",
if(color_ps) fprintf(fd, "%g %g %g RGB\n",
(double)ps_colors[pixel].red/256.0, (double)ps_colors[pixel].green/256.0,
(double)ps_colors[pixel].blue/256.0);
@ -557,7 +557,7 @@ static void fill_ps_colors()
void ps_draw(void)
{
double dx, dy, scale;
double dx, dy, scale, scaley;
double margin=20; /* in postscript points, (1/72)" */
xRect boundbox;
int c,i, textlayer;
@ -641,9 +641,11 @@ void ps_draw(void)
fprintf(fd, "%%%%BeginPageSetup\n");
fprintf(fd, "%%%%EndPageSetup\n");
scale = (595.0-2 * margin) / dy;
if(dx * scale > (842.0 - 2 * margin)) scale = (842.0 - 2 * margin) / dx;
fprintf(fd, "%g %g translate\n", -scale * boundbox.x1 + margin, 595 - margin + scale * boundbox.y1);
scaley = scale = (595.0-2 * margin) / dy;
if(dx * scale > (842.0 - 2 * margin)) {
scale = (842.0 - 2 * margin) / dx;
}
fprintf(fd, "%g %g translate\n", -scale * boundbox.x1 + margin, 595 - (scaley - scale) * dy - margin + scale * boundbox.y1);
fprintf(fd, "%g %g scale\n", scale, -scale);
fprintf(fd, "1 setlinejoin 1 setlinecap\n");
set_lw();