paps/SOURCES/paps-fix-tab-width.patch
2021-10-08 14:26:10 +00:00

78 lines
2.1 KiB
Diff

@@ -, +, @@
---
src/libpaps.c | 40 +++++++++++++++++++++++++++++-----------
1 file changed, 29 insertions(+), 11 deletions(-)
--- a/src/libpaps.c
+++ a/src/libpaps.c
@@ -251,7 +251,6 @@ gchar *paps_layout_line_to_postscript_strdup(paps_t *paps_,
{
paps_private_t *paps = (paps_private_t*)paps_;
GString *layout_str = g_string_new("");
- gchar *ret_str;
add_line_to_postscript(paps,
layout_str,
@@ -259,10 +258,7 @@ gchar *paps_layout_line_to_postscript_strdup(paps_t *paps_,
pos_y,
layout_line);
- ret_str = layout_str->str;
- g_string_free(layout_str, FALSE);
-
- return ret_str;
+ return g_string_free(layout_str, FALSE);
}
static void
@@ -408,9 +404,26 @@ static void draw_contour(paps_private_t *paps,
{
GSList *runs_list;
double scale = 72.0 / PANGO_SCALE / PAPS_DPI;
+ PangoGlyphUnit avg_width = 1;
g_string_append(layout_str, "(");
-
+
+ if (paps->cpi > 0.0L)
+ {
+ /* calculate approximate width per a character */
+ for (runs_list = pango_line->runs; runs_list != NULL; runs_list = g_slist_next(runs_list))
+ {
+ PangoLayoutRun *run = runs_list->data;
+ PangoGlyphString *glyphs = run->glyphs;
+ int i;
+
+ for (i = 0; i < glyphs->num_glyphs; i++)
+ {
+ if (glyphs->glyphs[i].glyph != PANGO_GLYPH_EMPTY)
+ avg_width = MAX (avg_width, glyphs->glyphs[i].geometry.width);
+ }
+ }
+ }
/* Loop over the runs and output font info */
runs_list = pango_line->runs;
double x_pos = line_start_pos_x;
@@ -433,11 +446,16 @@ static void draw_contour(paps_private_t *paps,
glyph_pos_x = x_pos + 1.0*geometry.x_offset * scale;
glyph_pos_y = line_start_pos_y - 1.0*geometry.y_offset * scale;
- if (paps->cpi > 0.0L) {
- x_pos += (1 / paps->cpi * 72.0);
- } else {
- x_pos += geometry.width * scale * paps->scale_x;
- }
+ if (paps->cpi > 0.0L)
+ {
+ double n = ((double)geometry.width) / avg_width;
+
+ x_pos += n * (1 / paps->cpi * 72.0);
+ }
+ else
+ {
+ x_pos += geometry.width * scale * paps->scale_x;
+ }
if (glyphs->glyphs[glyph_idx].glyph == PANGO_GLYPH_EMPTY)
continue;
--