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pstext: fix -D+v leader lines vanishing in PDF/EPS output #9210

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Merged
Esteban82 merged 2 commits into from
Sep 15, 2026
+11 −2
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pstext: fix -D+v leader lines vanishing in PDF/EPS output #9210

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1728f71
pstext: shrink the outer rectangle used to clip -D+v leader lines by …
Esteban82 Sep 15, 2026
bff94f6
pstext: make the leader-line clip bound unconditionally monotone
Esteban82 Sep 15, 2026
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13 changes: 11 additions & 2 deletions src/postscriptlight.c
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Original file line number Diff line number Diff line change
Expand Up @@ -4086,8 +4086,17 @@ int PSL_plotline_clipped_by_textbox(struct PSL_CTRL *PSL, double x0, double y0,
PSL_defunits(PSL, "PSL_dx", offset[0]);
PSL_defunits(PSL, "PSL_dy", offset[1]);

/* Build even-odd clip path: huge outer rectangle + textbox rectangle (the hole) */
PSL_command(PSL, "N -10000000 -10000000 M 20000000 0 D 0 20000000 D -20000000 0 D P\n");
/* Build even-odd clip path: outer rectangle + textbox rectangle (the hole). The outer
* rectangle just needs to enclose both the hole and the whole line; an astronomically
* large placeholder standing for "infinity" makes some PDF converters (e.g. Ghostscript's
* pdfwrite) miscompute the clip and drop the entire line (#9209). Sum absolute values
* only: PSL_dim_h is negative for text sitting entirely below the baseline (all-subscript)
* and PSL_dx|dy for a negative -C, so a signed sum could shrink the rectangle below the
* hole it must contain. PSL_dim_h enters twice since it also bounds the justify shift. */
PSL_command(PSL, "/PSL_obx PSL_dim_w abs PSL_dim_h abs 2 mul add PSL_dim_d abs add "
"PSL_dim_x0 abs add PSL_dim_x1 abs add PSL_dx abs add PSL_dy abs add %d add def\n",
abs(ixl) + abs(iyl) + 100);
PSL_command(PSL, "N PSL_obx neg PSL_obx neg M PSL_obx 2 mul 0 D 0 PSL_obx 2 mul D PSL_obx 2 mul neg 0 D P\n");
PSL_command(PSL, "%s PSL_dim_x0 add PSL_dx sub %s PSL_dim_d add PSL_dy sub M ",
jx[x_just], jy[y_just]);
PSL_command(PSL, "PSL_dim_x1 PSL_dim_x0 sub PSL_dx 2 mul add 0 D ");
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