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/*
* Copyright © 2002 University of Southern California
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of the
* University of Southern California not be used in advertising or
* publicity pertaining to distribution of the software without
* specific, written prior permission. The University of Southern
* California makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without express
* or implied warranty.
*
* THE UNIVERSITY OF SOUTHERN CALIFORNIA DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL THE UNIVERSITY OF
* SOUTHERN CALIFORNIA BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Author: Carl D. Worth <cworth@isi.edu>
*/
#include "cairoint.h"
cairo_font_t *
_cairo_font_create (const char *family,
cairo_font_slant_t slant,
cairo_font_weight_t weight)
{
const struct cairo_font_backend *backend = CAIRO_FONT_BACKEND_DEFAULT;
/* XXX: The current freetype backend may return NULL, (for example
* if no fonts are installed), but I would like to guarantee that
* the toy API always returns at least *some* font, so I would
* like to build in some sort fo font here, (even a really lame,
* ugly one if necessary). */
return backend->create (family, slant, weight);
}
cairo_status_t
_cairo_font_init (cairo_font_t *font,
const struct cairo_font_backend *backend)
{
cairo_matrix_set_identity (&font->matrix);
font->refcount = 1;
font->backend = backend;
return CAIRO_STATUS_SUCCESS;
}
cairo_font_t *
_cairo_font_copy (cairo_font_t *font)
{
cairo_font_t *newfont = NULL;
char *tmp = NULL;
if (font == NULL || font->backend->copy == NULL)
return NULL;
newfont = font->backend->copy (font);
if (newfont == NULL) {
free (tmp);
return NULL;
}
newfont->refcount = 1;
cairo_matrix_copy(&newfont->matrix, &font->matrix);
newfont->backend = font->backend;
return newfont;
}
cairo_status_t
_cairo_font_scale (cairo_font_t *font, double scale)
{
return cairo_matrix_scale (&font->matrix, scale, scale);
}
cairo_status_t
_cairo_font_transform (cairo_font_t *font, cairo_matrix_t *matrix)
{
return cairo_matrix_multiply (&font->matrix, matrix, &font->matrix);
}
cairo_status_t
_cairo_font_text_extents (cairo_font_t *font,
const unsigned char *utf8,
cairo_text_extents_t *extents)
{
return font->backend->text_extents(font, utf8, extents);
}
cairo_status_t
_cairo_font_glyph_extents (cairo_font_t *font,
cairo_glyph_t *glyphs,
int num_glyphs,
cairo_text_extents_t *extents)
{
return font->backend->glyph_extents(font, glyphs, num_glyphs, extents);
}
cairo_status_t
_cairo_font_show_text (cairo_font_t *font,
cairo_operator_t operator,
cairo_surface_t *source,
cairo_surface_t *surface,
double x,
double y,
const unsigned char *utf8)
{
return font->backend->show_text(font, operator, source,
surface, x, y, utf8);
}
cairo_status_t
_cairo_font_show_glyphs (cairo_font_t *font,
cairo_operator_t operator,
cairo_surface_t *source,
cairo_surface_t *surface,
cairo_glyph_t *glyphs,
int num_glyphs)
{
return font->backend->show_glyphs(font, operator, source,
surface, glyphs, num_glyphs);
}
cairo_status_t
_cairo_font_text_path (cairo_font_t *font,
double x,
double y,
const unsigned char *utf8,
cairo_path_t *path)
{
return font->backend->text_path(font, x, y, utf8, path);
}
cairo_status_t
_cairo_font_glyph_path (cairo_font_t *font,
cairo_glyph_t *glyphs,
int num_glyphs,
cairo_path_t *path)
{
return font->backend->glyph_path(font, glyphs, num_glyphs, path);
}
cairo_status_t
_cairo_font_font_extents (cairo_font_t *font,
cairo_font_extents_t *extents)
{
return font->backend->font_extents(font, extents);
}
/* public font interface follows */
void
cairo_font_reference (cairo_font_t *font)
{
font->refcount++;
}
void
cairo_font_destroy (cairo_font_t *font)
{
if (--(font->refcount) > 0)
return;
if (font->backend->destroy)
font->backend->destroy (font);
}
void
cairo_font_set_transform (cairo_font_t *font,
cairo_matrix_t *matrix)
{
cairo_matrix_copy (&(font->matrix), matrix);
}
void
cairo_font_current_transform (cairo_font_t *font,
cairo_matrix_t *matrix)
{
cairo_matrix_copy (matrix, &(font->matrix));
}
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