cpml/cpml-extents.h

   1 /* CPML - Cairo Path Manipulation Library
   2  * Copyright (C) 2008,2009,2010  Nicola Fontana <ntd at entidi.it>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA  02110-1301, USA.
  18  */
  19
  20
  21 #if !defined(__CPML_H__)
  22 #error "Only <cpml/cpml.h> can be included directly."
  23 #endif
  24
  25
  26 #ifndef __CPML_EXTENTS_H__
  27 #define __CPML_EXTENTS_H__
  28
  29
  30 CAIRO_BEGIN_DECLS
  31
  32 typedef struct _CpmlExtents CpmlExtents;
  33
  34 struct _CpmlExtents {
  35     cairo_bool_t is_defined;
  36     CpmlPair     org;
  37     CpmlVector   size;
  38 };
  39
  40
  41 CpmlExtents *   cpml_extents_copy               (CpmlExtents       *extents,
  42                                                  const CpmlExtents *src);
  43 CpmlExtents *   cpml_extents_from_cairo_text    (CpmlExtents       *extents,
  44                                                  const cairo_text_extents_t
  45                                                                    *cairo_extents);
  46 void            cpml_extents_add                (CpmlExtents       *extents,
  47                                                  const CpmlExtents *src);
  48 void            cpml_extents_pair_add           (CpmlExtents       *extents,
  49                                                  const CpmlPair    *src);
  50 cairo_bool_t    cpml_extents_is_inside          (const CpmlExtents *extents,
  51                                                  const CpmlExtents *src);
  52 cairo_bool_t    cpml_extents_pair_is_inside     (const CpmlExtents *extents,
  53                                                  const CpmlPair    *src);
  54 void            cpml_extents_transform          (CpmlExtents       *extents,
  55                                                  const cairo_matrix_t *matrix);
  56
  57 CAIRO_END_DECLS
  58
  59
  60 #endif /* __CPML_EXTENTS_H__ */