1 /*
2  * Copyright (c) 2015 Christian Hergert <chergert@gnome.org>
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU Lesser General Public License as published by
6  * the Free Software Foundation; either version 2 of the License, or (at your
7  * option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful, but
10  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
11  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
12  * License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public License
15  * along with this program; if not, write to the Free Software Foundation,
16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
17  *
18  * Author: Christian Hergert <chergert@gnome.org>
19  *
20  */
21 
22 #ifndef __GTK_TEXT_ATTRIBUTE_PRIVATE_H__
23 #define __GTK_TEXT_ATTRIBUTE_PRIVATE_H__
24 
25 /*
26  * The following macros are used to store and extract information about the
27  * Pango underline and strikethrough colors in the unused pixel member of
28  * the GdkColor members of GtkTextAppearance.
29  *
30  * In 4.0, we should revisit this.
31  */
32 
33 #define GTK_TEXT_APPEARANCE_GET_UNDERLINE_RGBA_SET(appr) \
34     (((guint8*)&(appr)->bg_color)[3] != 0)
35 #define GTK_TEXT_APPEARANCE_SET_UNDERLINE_RGBA_SET(appr,val) \
36   G_STMT_START { \
37     ((guint8*)&(appr)->bg_color)[3] = !!val; \
38   } G_STMT_END
39 #define GTK_TEXT_APPEARANCE_GET_UNDERLINE_RGBA(appr,rgba) \
40   G_STMT_START { \
41     (rgba)->red = ((guint8*)&(appr)->bg_color)[0] / 255.; \
42     (rgba)->green = ((guint8*)&(appr)->bg_color)[1] / 255.; \
43     (rgba)->blue = ((guint8*)&(appr)->bg_color)[2] / 255.; \
44     (rgba)->alpha = 1.0; \
45   } G_STMT_END
46 #define GTK_TEXT_APPEARANCE_SET_UNDERLINE_RGBA(appr,rgba) \
47   G_STMT_START { \
48     ((guint8*)&(appr)->bg_color)[0] = (rgba)->red * 255; \
49     ((guint8*)&(appr)->bg_color)[1] = (rgba)->green * 255; \
50     ((guint8*)&(appr)->bg_color)[2] = (rgba)->blue * 255; \
51   } G_STMT_END
52 
53 
54 #define GTK_TEXT_APPEARANCE_GET_STRIKETHROUGH_RGBA_SET(appr) \
55     (((guint8*)&(appr)->fg_color)[3] != 0)
56 #define GTK_TEXT_APPEARANCE_SET_STRIKETHROUGH_RGBA_SET(appr,val) \
57   G_STMT_START { \
58     ((guint8*)&(appr)->fg_color)[3] = !!val; \
59   } G_STMT_END
60 #define GTK_TEXT_APPEARANCE_GET_STRIKETHROUGH_RGBA(appr,rgba) \
61   G_STMT_START { \
62     (rgba)->red = ((guint8*)&(appr)->fg_color)[0] / 255.; \
63     (rgba)->green = ((guint8*)&(appr)->fg_color)[1] / 255.; \
64     (rgba)->blue = ((guint8*)&(appr)->fg_color)[2] / 255.; \
65     (rgba)->alpha = 1.0; \
66   } G_STMT_END
67 #define GTK_TEXT_APPEARANCE_SET_STRIKETHROUGH_RGBA(appr,rgba) \
68   G_STMT_START { \
69     ((guint8*)&(appr)->fg_color)[0] = (rgba)->red * 255; \
70     ((guint8*)&(appr)->fg_color)[1] = (rgba)->green * 255; \
71     ((guint8*)&(appr)->fg_color)[2] = (rgba)->blue * 255; \
72   } G_STMT_END
73 
74 
75 #endif /* __GTK_TEXT_ATTRIBUTE_PRIVATE_H__ */
76