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[hb-shape] Adjust postioning output format 

1. If there is any offset (x or y), print out both x and y offsets.

2. Always print out the advance in the major direction of the buffer.
Ie. even for zero-advance glyphs, print a "+0".  This is more intuitive.
This commit is contained in:
Behdad Esfahbod 2012-11-13 11:07:20 -08:00
parent 6fd5335622
commit c8149ca85e
1 changed files with 7 additions and 6 deletions
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13
util/options.cc
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@ -616,6 +616,7 @@ format_options_t::serialize_glyphs (hb_buffer_t *buffer,
unsigned int num_glyphs = hb_buffer_get_length (buffer);
hb_glyph_info_t *info = hb_buffer_get_glyph_infos (buffer, NULL);
hb_glyph_position_t *pos = hb_buffer_get_glyph_positions (buffer, NULL);
hb_direction_t direction = hb_buffer_get_direction (buffer);
g_string_append_c (gs, '[');
for (unsigned int i = 0; i < num_glyphs; i++)
@ -637,14 +638,14 @@ format_options_t::serialize_glyphs (hb_buffer_t *buffer,
}
if (show_positions && (pos->x_offset || pos->y_offset)) {
g_string_append_c (gs, '@');
if (pos->x_offset) g_string_append_printf (gs, "%d", pos->x_offset);
if (pos->y_offset) g_string_append_printf (gs, ",%d", pos->y_offset);
g_string_append_printf (gs, "@%d,%d", pos->x_offset, pos->y_offset);
}
if (show_positions && (pos->x_advance || pos->y_advance)) {
if (show_positions) {
g_string_append_c (gs, '+');
if (pos->x_advance) g_string_append_printf (gs, "%d", pos->x_advance);
if (pos->y_advance) g_string_append_printf (gs, ",%d", pos->y_advance);
if (HB_DIRECTION_IS_HORIZONTAL (direction) || pos->x_advance)
g_string_append_printf (gs, "%d", pos->x_advance);
if (HB_DIRECTION_IS_VERTICAL (direction) || pos->y_advance)
g_string_append_printf (gs, ",%d", pos->y_advance);
}
info++;