src/adg/adg-cairo-fallback.h

   1 /* ADG - Automatic Drawing Generation
   2  * Copyright (C) 2007-2021  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_CAIRO_FALLBACK_H__
  22 #define __ADG_CAIRO_FALLBACK_H__
  23
  24
  25 G_BEGIN_DECLS
  26
  27
  28 /* Provide some GObject wrappers around cairo_matrix_t and cairo_pattern_t
  29  * if cairo-gobject support has not been provided by cairo itself or
  30  * if the cairo version is too old to provide them. */
  31
  32
  33 #if CAIRO_VERSION < CAIRO_VERSION_ENCODE(1, 14, 0)
  34 #warning "Media scaling with adg_canvas_set_factor() not supported"
  35
  36 void        cairo_surface_set_device_scale (cairo_surface_t *surface,
  37                                             double           x_scale,
  38                                             double           y_scale);
  39
  40 #endif /* cairo < 1.14.0 */
  41
  42
  43 #ifndef CAIRO_GOBJECT_TYPE_MATRIX
  44
  45 #define ADG_MISSING_GBOXED_MATRIX       1
  46 #define CAIRO_GOBJECT_TYPE_MATRIX       (cairo_gobject_matrix_get_type())
  47
  48 GType           cairo_gobject_matrix_get_type
  49                                         (void);
  50 cairo_matrix_t *cairo_gobject_cairo_matrix_copy
  51                                         (const cairo_matrix_t   *matrix);
  52
  53 #endif /* CAIRO_GOBJECT_TYPE_MATRIX */
  54
  55
  56 #ifndef CAIRO_GOBJECT_TYPE_PATTERN
  57
  58 #define ADG_MISSING_GBOXED_PATTERN          1
  59 #define CAIRO_GOBJECT_TYPE_PATTERN          (cairo_gobject_pattern_get_type())
  60
  61 GType   cairo_gobject_pattern_get_type      (void);
  62 cairo_pattern_t *
  63         cairo_gobject_cairo_pattern_copy    (const cairo_pattern_t  *pattern);
  64
  65 #endif /* CAIRO_GOBJECT_TYPE_PATTERN */
  66
  67
  68 G_END_DECLS
  69
  70
  71 #endif /* __ADG_CAIRO_FALLBACK_H__ */