fdo-mirrors/cairo
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/cairo/cairo.git synced 2026-05-04 11:47:59 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

[cairo-scaled-font] Implement _cairo_scaled_font_get_max_scale()

Browse source
This commit is contained in:
Behdad Esfahbod 2008-05-24 14:57:31 -04:00
parent 479936ecea
commit 1b5e2144fb
3 changed files with 14 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
src/cairo-scaled-font-private.h
View file

@ -94,6 +94,7 @@ struct _cairo_scaled_font {
/* "live" scaled_font members */
cairo_matrix_t scale; /* font space => device space */
cairo_matrix_t scale_inverse; /* device space => font space */
double max_scale; /* maximum x/y expansion of scale */
cairo_font_extents_t extents; /* user space */
/* The mutex protects modification to all subsequent fields. */

10
src/cairo-scaled-font.c
View file

@ -195,6 +195,7 @@ static const cairo_scaled_font_t _cairo_scaled_font_nil = {
TRUE, /* finished */
{ 1., 0., 0., 1., 0, 0}, /* scale */
{ 1., 0., 0., 1., 0, 0}, /* scale_inverse */
1., /* max_scale */
{ 0., 0., 0., 0., 0. }, /* extents */
CAIRO_MUTEX_NIL_INITIALIZER,/* mutex */
NULL, /* glyphs */
@ -480,6 +481,8 @@ _cairo_scaled_font_init (cairo_scaled_font_t *scaled_font,
&scaled_font->font_matrix,
&scaled_font->ctm);
scaled_font->max_scale = MAX (fabs (scaled_font->scale.xx) + fabs (scaled_font->scale.xy),
fabs (scaled_font->scale.yx) + fabs (scaled_font->scale.yy));
scaled_font->scale_inverse = scaled_font->scale;
status = cairo_matrix_invert (&scaled_font->scale_inverse);
if (status) {
@ -1906,6 +1909,13 @@ _cairo_scaled_glyph_lookup (cairo_scaled_font_t *scaled_font,
return status;
}
double
_cairo_scaled_font_get_max_scale (cairo_scaled_font_t *scaled_font)
{
return scaled_font->max_scale;
}
/**
* cairo_scaled_font_get_font_face:
* @scaled_font: a #cairo_scaled_font_t

3
src/cairoint.h
View file

@ -1551,6 +1551,9 @@ _cairo_scaled_glyph_lookup (cairo_scaled_font_t *scaled_font,
cairo_scaled_glyph_info_t info,
cairo_scaled_glyph_t **scaled_glyph_ret);
cairo_private double
_cairo_scaled_font_get_max_scale (cairo_scaled_font_t *scaled_font);
cairo_private void
_cairo_scaled_font_map_destroy (void);