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[twin] Implement monospace

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This commit is contained in:
Behdad Esfahbod 2008-12-24 03:47:21 -05:00
parent 5def8c587b
commit 6c1d21bf89
1 changed files with 23 additions and 7 deletions
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30
src/cairo-font-face-twin.c
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@ -285,6 +285,8 @@ twin_scaled_font_render_glyph (cairo_scaled_font_t *scaled_font,
twin_face_properties_t *props;
const int8_t *b;
const int8_t *g;
int8_t w;
double lw;
struct {
cairo_bool_t snap;
@ -297,12 +299,14 @@ twin_scaled_font_render_glyph (cairo_scaled_font_t *scaled_font,
b = _cairo_twin_outlines +
_cairo_twin_charmap[unlikely (glyph >= ARRAY_LENGTH (_cairo_twin_charmap)) ? 0 : glyph];
g = twin_glyph_draw(b);
w = twin_glyph_right(b);
props = cairo_font_face_get_user_data (cairo_scaled_font_get_font_face (scaled_font),
&twin_face_properties_key);
cairo_set_tolerance (cr, 0.01);
/* The weight is tuned to match DejaVu Sans' */
cairo_set_line_width (cr, props->weight * (5.5 / 64 / TWIN_WEIGHT_NORMAL));
lw = props->weight * (5.5 / 64 / TWIN_WEIGHT_NORMAL);
cairo_set_line_width (cr, lw);
cairo_set_miter_limit (cr, M_SQRT2);
cairo_set_line_join (cr, props->serif ?
@ -312,6 +316,23 @@ twin_scaled_font_render_glyph (cairo_scaled_font_t *scaled_font,
CAIRO_LINE_CAP_SQUARE :
CAIRO_LINE_CAP_ROUND);
cairo_translate (cr, lw, 0); /* for margin */
cairo_save (cr);
if (props->monospace) {
int8_t monow = 24;
cairo_scale (cr, (FX(monow)+lw) / (FX(w)+lw), 1.);
w = monow;
}
cairo_translate (cr, lw * .5, 0); /* for pen width */
metrics->x_advance = FX(w) + lw;
metrics->x_advance += 2 * lw /* XXX 2*x.margin */;
if (info.snap)
metrics->x_advance = SNAPI (SNAPX (metrics->x_advance));
for (;;) {
switch (*g++) {
case 'M':
@ -365,6 +386,7 @@ twin_scaled_font_render_glyph (cairo_scaled_font_t *scaled_font,
cairo_close_path (cr);
/* fall through */
case 'e':
cairo_restore (cr);
cairo_stroke (cr);
break;
case 'X':
@ -374,12 +396,6 @@ twin_scaled_font_render_glyph (cairo_scaled_font_t *scaled_font,
break;
}
metrics->x_advance = FX(twin_glyph_right(b)) + cairo_get_line_width (cr);
metrics->x_advance += 2*cairo_get_line_width (cr)/* XXX 2*x.margin */;
if (info.snap)
metrics->x_advance = SNAPI (SNAPX (metrics->x_advance));
return CAIRO_STATUS_SUCCESS;
}