static cairo_status_t
twin_scaled_font_render_glyph (cairo_scaled_font_t *scaled_font,
unsigned long glyph,
cairo_t *cr,
cairo_text_extents_t *metrics)
{
double x1, y1, x2, y2, x3, y3;
double marginl;
twin_scaled_properties_t *props;
twin_snap_info_t info;
const int8_t *b;
const int8_t *g;
int8_t w;
double gw;
props = cairo_scaled_font_get_user_data (scaled_font, &twin_properties_key);
/* Save glyph space, we need it when stroking */
cairo_save (cr);
/* center the pen */
cairo_translate (cr, props->penx * .5, -props->peny * .5);
/* small-caps */
if (props->face_props->smallcaps && glyph >= 'a' && glyph <= 'z') {
glyph += 'A' - 'a';
/* 28 and 42 are small and capital letter heights of the glyph data */
cairo_scale (cr, 1, 28. / 42);
}
/* slant */
if (props->face_props->slant != CAIRO_FONT_SLANT_NORMAL) {
cairo_matrix_t shear = { 1, 0, -.2, 1, 0, 0};
cairo_transform (cr, &shear);
}
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);
gw = F(w);
marginl = props->marginl;
/* monospace */
if (props->face_props->monospace) {
double monow = F(24);
double extra = props->penx + props->marginl + props->marginr;
cairo_scale (cr, (monow + extra) / (gw + extra), 1);
gw = monow;
/* resnap margin for new transform */
{
double x, y, x_scale, x_scale_inv;
x = 1; y = 0;
compute_hinting_scale (cr, x, y, &x_scale, &x_scale_inv);
marginl = SNAPXI (marginl);
}
}
cairo_translate (cr, marginl, 0);
/* stretch */
cairo_scale (cr, props->stretch, 1);
if (props->snap)
twin_compute_snap (cr, &info, b);
else
info.n_snap_x = info.n_snap_y = 0;
/* advance width */
metrics->x_advance = gw * props->stretch + props->penx + props->marginl + props->marginr;
/* glyph shape */
for (;;) {
switch (*g++) {
case 'M':
cairo_close_path (cr);
/* fall through */
case 'm':
x1 = SNAPX(*g++);
y1 = SNAPY(*g++);
cairo_move_to (cr, x1, y1);
continue;
case 'L':
cairo_close_path (cr);
/* fall through */
case 'l':
x1 = SNAPX(*g++);
y1 = SNAPY(*g++);
cairo_line_to (cr, x1, y1);
continue;
case 'C':
cairo_close_path (cr);
/* fall through */
case 'c':
x1 = SNAPX(*g++);
y1 = SNAPY(*g++);
x2 = SNAPX(*g++);
y2 = SNAPY(*g++);
x3 = SNAPX(*g++);
y3 = SNAPY(*g++);
cairo_curve_to (cr, x1, y1, x2, y2, x3, y3);
continue;
case 'E':
cairo_close_path (cr);
/* fall through */
case 'e':
cairo_restore (cr); /* restore glyph space */
cairo_set_tolerance (cr, 0.01);
cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
cairo_set_line_width (cr, 1);
cairo_scale (cr, props->penx, props->peny);
cairo_stroke (cr);
break;
case 'X':
/* filler */
continue;
}
break;
}
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
twin_scaled_font_render_glyph (cairo_scaled_font_t *scaled_font,
unsigned long glyph,
cairo_t *cr,
cairo_text_extents_t *metrics)
{
double x1, y1, x2, y2, x3, y3;
const int8_t *b = _cairo_twin_outlines +
_cairo_twin_charmap[glyph >= ARRAY_LENGTH (_cairo_twin_charmap) ? 0 : glyph];
const int8_t *g = twin_glyph_draw(b);
struct {
cairo_bool_t snap;
int snap_x;
int snap_y;
int n_snap_x;
int n_snap_y;
} info = {FALSE};
cairo_set_line_width (cr, 0.06);
cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
for (;;) {
switch (*g++) {
case 'M':
cairo_close_path (cr);
/* fall through */
case 'm':
x1 = FX(*g++);
y1 = FY(*g++);
if (info.snap)
{
x1 = SNAPX (x1);
y1 = SNAPY (y1);
}
cairo_move_to (cr, x1, y1);
continue;
case 'L':
cairo_close_path (cr);
/* fall through */
case 'l':
x1 = FX(*g++);
y1 = FY(*g++);
if (info.snap)
{
x1 = SNAPX (x1);
y1 = SNAPY (y1);
}
cairo_line_to (cr, x1, y1);
continue;
case 'C':
cairo_close_path (cr);
/* fall through */
case 'c':
x1 = FX(*g++);
y1 = FY(*g++);
x2 = FX(*g++);
y2 = FY(*g++);
x3 = FX(*g++);
y3 = FY(*g++);
if (info.snap)
{
x1 = SNAPX (x1);
y1 = SNAPY (y1);
x2 = SNAPX (x2);
y2 = SNAPY (y2);
x3 = SNAPX (x3);
y3 = SNAPY (y3);
}
cairo_curve_to (cr, x1, y1, x2, y2, x3, y3);
continue;
case 'E':
cairo_close_path (cr);
/* fall through */
case 'e':
cairo_stroke (cr);
break;
case 'X':
/* filler */
continue;
}
break;
}
metrics->x_advance = FX(twin_glyph_right(b)) + cairo_get_line_width (cr);
metrics->x_advance += cairo_get_line_width (cr)/* XXX 2*x.margin */;
if (info.snap)
metrics->x_advance = SNAPI (SNAPX (metrics->x_advance));
return CAIRO_STATUS_SUCCESS;
}