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(w32_native_per_char_metric): Don't trust the metrics

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that Windows returns.  If a double check fails, try to guess how
ExtTextOut is going to act.
This commit is contained in:
Jason Rumney 2002-01-20 14:54:48 +00:00
parent 5c139d2993
commit 73dc743ce9
1 changed files with 14 additions and 3 deletions
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17
src/w32term.c
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@ -388,8 +388,8 @@ static void x_clear_frame P_ ((void));
static void x_clear_cursor P_ ((struct window *));
static void frame_highlight P_ ((struct frame *));
static void frame_unhighlight P_ ((struct frame *));
static void w32_new_focus_frame P_ ((struct w32_display_info *,
struct frame *));
static void x_new_focus_frame P_ ((struct w32_display_info *,
struct frame *));
static void w32_frame_rehighlight P_ ((struct frame *));
static void x_frame_rehighlight P_ ((struct w32_display_info *));
static void x_draw_hollow_cursor P_ ((struct window *, struct glyph_row *));
@ -1210,9 +1210,20 @@ w32_native_per_char_metric (font, char2b, font_type, pcm)
if (retval)
{
/* Don't trust the ABC widths. For synthesized fonts they are
wrong, and so is the result of GetCharWidth()! */
int real_width;
GetCharWidth (hdc, *char2b, *char2b, &real_width);
pcm->width = char_widths.abcA + char_widths.abcB + char_widths.abcC;
/* As far as I can tell, this is the best way to determine what
ExtTextOut will do with the broken font. */
if (pcm->width != real_width)
pcm->width = (pcm->width + real_width) / 2;
pcm->lbearing = char_widths.abcA;
pcm->rbearing = pcm->width - char_widths.abcC;
pcm->rbearing = char_widths.abcA + char_widths.abcB;
pcm->ascent = FONT_BASE (font);
pcm->descent = FONT_DESCENT (font);
}