1 | /* GTK - The GIMP Toolkit |
2 | * Copyright (C) 2019 Benjamin Otte <otte@gnome.org> |
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, see <http://www.gnu.org/licenses/>. |
16 | */ |
17 | |
18 | #ifndef __GTK_CSS_BOXES_PRIVATE_H__ |
19 | #define __GTK_CSS_BOXES_PRIVATE_H__ |
20 | |
21 | #include "gtkcsstypesprivate.h" |
22 | #include "gtktypes.h" |
23 | |
24 | G_BEGIN_DECLS |
25 | |
26 | /* |
27 | * The idea behind this file is that it provides an on-stack representation |
28 | * for all the CSS boxes one can have to deal with in the CSS box model so that |
29 | * higher level code can use convenient and readable function calls instead of |
30 | * doing complicated math. |
31 | * |
32 | * However, because computing all those rectangles is prohibitively expensive, |
33 | * this struct does it lazily. |
34 | * And then we inline all the code, so that whenever we use this struct, the |
35 | * compiler can optimize out the parts we don't need in that particular use |
36 | * case. |
37 | */ |
38 | |
39 | typedef struct _GtkCssBoxes GtkCssBoxes; |
40 | |
41 | /* ahem... |
42 | * Let's extend GtkCssArea a bit here. */ |
43 | #define GTK_CSS_AREA_MARGIN_BOX (3) |
44 | #define GTK_CSS_AREA_OUTLINE_BOX (4) |
45 | #define GTK_CSS_AREA_N_BOXES (5) |
46 | |
47 | |
48 | struct _GtkCssBoxes |
49 | { |
50 | GtkCssStyle *style; |
51 | GskRoundedRect box[GTK_CSS_AREA_N_BOXES]; |
52 | gboolean has_rect[GTK_CSS_AREA_N_BOXES]; /* TRUE if we have initialized just the bounds rect */ |
53 | gboolean has_box[GTK_CSS_AREA_N_BOXES]; /* TRUE if we have initialized the whole box */ |
54 | }; |
55 | |
56 | static inline void gtk_css_boxes_init (GtkCssBoxes *boxes, |
57 | GtkWidget *widget); |
58 | static inline void gtk_css_boxes_init_content_box (GtkCssBoxes *boxes, |
59 | GtkCssStyle *style, |
60 | double x, |
61 | double y, |
62 | double width, |
63 | double height); |
64 | static inline void gtk_css_boxes_init_border_box (GtkCssBoxes *boxes, |
65 | GtkCssStyle *style, |
66 | double x, |
67 | double y, |
68 | double width, |
69 | double height); |
70 | |
71 | static inline const graphene_rect_t * gtk_css_boxes_get_rect (GtkCssBoxes *boxes, |
72 | GtkCssArea area); |
73 | static inline const graphene_rect_t * gtk_css_boxes_get_margin_rect (GtkCssBoxes *boxes); |
74 | static inline const graphene_rect_t * gtk_css_boxes_get_border_rect (GtkCssBoxes *boxes); |
75 | static inline const graphene_rect_t * gtk_css_boxes_get_padding_rect (GtkCssBoxes *boxes); |
76 | static inline const graphene_rect_t * gtk_css_boxes_get_content_rect (GtkCssBoxes *boxes); |
77 | static inline const graphene_rect_t * gtk_css_boxes_get_outline_rect (GtkCssBoxes *boxes); |
78 | |
79 | static inline const GskRoundedRect * gtk_css_boxes_get_box (GtkCssBoxes *boxes, |
80 | GtkCssArea area); |
81 | static inline const GskRoundedRect * gtk_css_boxes_get_border_box (GtkCssBoxes *boxes); |
82 | static inline const GskRoundedRect * gtk_css_boxes_get_padding_box (GtkCssBoxes *boxes); |
83 | static inline const GskRoundedRect * gtk_css_boxes_get_content_box (GtkCssBoxes *boxes); |
84 | static inline const GskRoundedRect * gtk_css_boxes_get_outline_box (GtkCssBoxes *boxes); |
85 | |
86 | G_END_DECLS |
87 | |
88 | #endif /* __GTK_CSS_BOXES_PRIVATE_H__ */ |
89 | |
90 | /* and finally include the actual code for the functions */ |
91 | #include "gtkcssboxesimplprivate.h" |
92 | |
93 | |