adg/adg-matrix.h

   1 /* ADG - Automatic Drawing Generation
   2  * Copyright (C) 2007,2008,2009 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 #ifndef __ADG_MATRIX_H__
  22 #define __ADG_MATRIX_H__
  23
  24 #include <adg/adg-enums.h>
  25 #include <cairo.h>
  26
  27
  28 G_BEGIN_DECLS
  29
  30 #define ADG_TYPE_MATRIX  (adg_matrix_get_type())
  31
  32
  33 typedef cairo_matrix_t AdgMatrix;
  34
  35
  36 GType           adg_matrix_get_type             (void) G_GNUC_CONST;
  37 const AdgMatrix*adg_matrix_identity             (void) G_GNUC_CONST;
  38
  39 AdgMatrix *     adg_matrix_copy                 (AdgMatrix       *matrix,
  40                                                  const AdgMatrix *src);
  41 AdgMatrix *     adg_matrix_dup                  (const AdgMatrix *matrix);
  42 gboolean        adg_matrix_equal                (const AdgMatrix *matrix1,
  43                                                  const AdgMatrix *matrix2);
  44 gboolean        adg_matrix_normalize            (AdgMatrix       *matrix);
  45 void            adg_matrix_transform            (AdgMatrix       *matrix,
  46                                                  const AdgMatrix *transformation,
  47                                                  AdgTransformationMode mode);
  48
  49 G_END_DECLS
  50
  51
  52 #endif /* __ADG_MATRIX_H__ */