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	pango-compat.c - ledit - Text editor (WIP)
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	---
	pango-compat.c (1807B)
	---
	1 #include <pango/pangoxft.h>
	2
	3 /* FIXME: Is this illegal due to different licenses? */
	4 /* FIXME: Check earliest version of other used functions to get minimum …
	5 for ledit as a whole */
	6 /* FIXME: This is just copied from the newer version of pango. It *seems…
	7 the structs used are public (they're in the documentation), but it do…
	8 a bit dirty to do this here */
	9 /* This version check is disabled currently because an older version of …
	10 bug where pango_layout_get_direction didn't work with lines of length…
	11 I should actually check when that was changed so I can do a version c…
	12 //#if !PANGO_VERSION_CHECK(1, 46, 0)
	13 #if 1
	14 static PangoLayoutRun *
	15 pango_layout_line_get_run(PangoLayoutLine *line, int index) {
	16 GSList *run_list;
	17
	18 run_list = line->runs;
	19 while (run_list) {
	20 PangoLayoutRun *run = run_list->data;
	21
	22 if (run->item->offset <= index && run->item->offset + ru…
	23 return run;
	24
	25 run_list = run_list->next;
	26 }
	27
	28 return NULL;
	29 }
	30
	31 static int
	32 pango_layout_line_get_char_level(PangoLayoutLine *line, int index) {
	33 PangoLayoutRun *run;
	34
	35 run = pango_layout_line_get_run(line, index);
	36
	37 if (run)
	38 return run->item->analysis.level;
	39
	40 return 0;
	41 }
	42
	43 static PangoDirection
	44 pango_layout_line_get_char_direction(PangoLayoutLine *layout_line, int i…
	45 return pango_layout_line_get_char_level(layout_line, index) % 2
	46 ? PANGO_DIRECTION_RTL
	47 : PANGO_DIRECTION_LTR;
	48 }
	49
	50 PangoDirection
	51 ledit_pango_layout_get_direction(PangoLayout *layout, int index) {
	52 int lineno, x;
	53 PangoLayoutLine *line;
	54 pango_layout_index_to_line_x(layout, index, 0, &lineno, &x);
	55 line = pango_layout_get_line_readonly(layout, lineno);
	56
	57 if (line)
	58 return pango_layout_line_get_char_direction(line, index);
	59
	60 return PANGO_DIRECTION_LTR;
	61 }
	62 #endif