1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 2011 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 #include "config.h"
19
20 #include "gtkcsstypesprivate.h"
21
22 #include "gtkcssnumbervalueprivate.h"
23 #include "gtkstylecontextprivate.h"
24
25 cairo_operator_t
_gtk_css_blend_mode_get_operator(GtkCssBlendMode mode)26 _gtk_css_blend_mode_get_operator (GtkCssBlendMode mode)
27 {
28 switch (mode)
29 {
30 case GTK_CSS_BLEND_MODE_COLOR:
31 return CAIRO_OPERATOR_HSL_COLOR;
32 case GTK_CSS_BLEND_MODE_COLOR_BURN:
33 return CAIRO_OPERATOR_COLOR_BURN;
34 case GTK_CSS_BLEND_MODE_COLOR_DODGE:
35 return CAIRO_OPERATOR_COLOR_DODGE;
36 case GTK_CSS_BLEND_MODE_DARKEN:
37 return CAIRO_OPERATOR_DARKEN;
38 case GTK_CSS_BLEND_MODE_DIFFERENCE:
39 return CAIRO_OPERATOR_DIFFERENCE;
40 case GTK_CSS_BLEND_MODE_EXCLUSION:
41 return CAIRO_OPERATOR_EXCLUSION;
42 case GTK_CSS_BLEND_MODE_HARD_LIGHT:
43 return CAIRO_OPERATOR_HARD_LIGHT;
44 case GTK_CSS_BLEND_MODE_HUE:
45 return CAIRO_OPERATOR_HSL_HUE;
46 case GTK_CSS_BLEND_MODE_LIGHTEN:
47 return CAIRO_OPERATOR_LIGHTEN;
48 case GTK_CSS_BLEND_MODE_LUMINOSITY:
49 return CAIRO_OPERATOR_HSL_LUMINOSITY;
50 case GTK_CSS_BLEND_MODE_MULTIPLY:
51 return CAIRO_OPERATOR_MULTIPLY;
52 case GTK_CSS_BLEND_MODE_OVERLAY:
53 return CAIRO_OPERATOR_OVERLAY;
54 case GTK_CSS_BLEND_MODE_SATURATE:
55 return CAIRO_OPERATOR_SATURATE;
56 case GTK_CSS_BLEND_MODE_SCREEN:
57 return CAIRO_OPERATOR_SCREEN;
58
59 case GTK_CSS_BLEND_MODE_NORMAL:
60 default:
61 return CAIRO_OPERATOR_OVER;
62 }
63 }
64
65 GtkCssChange
_gtk_css_change_for_sibling(GtkCssChange match)66 _gtk_css_change_for_sibling (GtkCssChange match)
67 {
68 #define BASE_STATES ( GTK_CSS_CHANGE_CLASS \
69 | GTK_CSS_CHANGE_NAME \
70 | GTK_CSS_CHANGE_ID \
71 | GTK_CSS_CHANGE_FIRST_CHILD \
72 | GTK_CSS_CHANGE_LAST_CHILD \
73 | GTK_CSS_CHANGE_NTH_CHILD \
74 | GTK_CSS_CHANGE_NTH_LAST_CHILD \
75 | GTK_CSS_CHANGE_STATE )
76
77 #define KEEP_STATES ( ~(BASE_STATES|GTK_CSS_CHANGE_SOURCE|GTK_CSS_CHANGE_PARENT_STYLE) \
78 | GTK_CSS_CHANGE_NTH_CHILD \
79 | GTK_CSS_CHANGE_NTH_LAST_CHILD)
80
81 #define SIBLING_SHIFT 8
82
83 return (match & KEEP_STATES) | ((match & BASE_STATES) << SIBLING_SHIFT);
84
85 #undef BASE_STATES
86 #undef KEEP_STATES
87 #undef SIBLING_SHIFT
88 }
89
90 GtkCssChange
_gtk_css_change_for_child(GtkCssChange match)91 _gtk_css_change_for_child (GtkCssChange match)
92 {
93 #define BASE_STATES ( GTK_CSS_CHANGE_CLASS \
94 | GTK_CSS_CHANGE_NAME \
95 | GTK_CSS_CHANGE_ID \
96 | GTK_CSS_CHANGE_FIRST_CHILD \
97 | GTK_CSS_CHANGE_LAST_CHILD \
98 | GTK_CSS_CHANGE_NTH_CHILD \
99 | GTK_CSS_CHANGE_NTH_LAST_CHILD \
100 | GTK_CSS_CHANGE_STATE \
101 | GTK_CSS_CHANGE_SIBLING_CLASS \
102 | GTK_CSS_CHANGE_SIBLING_NAME \
103 | GTK_CSS_CHANGE_SIBLING_ID \
104 | GTK_CSS_CHANGE_SIBLING_FIRST_CHILD \
105 | GTK_CSS_CHANGE_SIBLING_LAST_CHILD \
106 | GTK_CSS_CHANGE_SIBLING_NTH_CHILD \
107 | GTK_CSS_CHANGE_SIBLING_NTH_LAST_CHILD \
108 | GTK_CSS_CHANGE_SIBLING_STATE )
109
110 #define PARENT_SHIFT 16
111
112 return (match & ~(BASE_STATES|GTK_CSS_CHANGE_SOURCE|GTK_CSS_CHANGE_PARENT_STYLE)) | ((match & BASE_STATES) << PARENT_SHIFT);
113
114 #undef BASE_STATES
115 #undef PARENT_SHIFT
116 }
117
118 void
gtk_css_change_print(GtkCssChange change,GString * string)119 gtk_css_change_print (GtkCssChange change,
120 GString *string)
121 {
122 const struct {
123 GtkCssChange flags;
124 const char *name;
125 } names[] = {
126 { GTK_CSS_CHANGE_CLASS, "class" },
127 { GTK_CSS_CHANGE_NAME, "name" },
128 { GTK_CSS_CHANGE_ID, "id" },
129 { GTK_CSS_CHANGE_FIRST_CHILD, "first-child" },
130 { GTK_CSS_CHANGE_LAST_CHILD, "last-child" },
131 { GTK_CSS_CHANGE_NTH_CHILD, "nth-child" },
132 { GTK_CSS_CHANGE_NTH_LAST_CHILD, "nth-last-child" },
133 { GTK_CSS_CHANGE_STATE, "state" },
134 { GTK_CSS_CHANGE_SIBLING_CLASS, "sibling-class" },
135 { GTK_CSS_CHANGE_SIBLING_NAME, "sibling-name" },
136 { GTK_CSS_CHANGE_SIBLING_ID, "sibling-id" },
137 { GTK_CSS_CHANGE_SIBLING_FIRST_CHILD, "sibling-first-child" },
138 { GTK_CSS_CHANGE_SIBLING_LAST_CHILD, "sibling-last-child" },
139 { GTK_CSS_CHANGE_SIBLING_NTH_CHILD, "sibling-nth-child" },
140 { GTK_CSS_CHANGE_SIBLING_NTH_LAST_CHILD, "sibling-nth-last-child" },
141 { GTK_CSS_CHANGE_SIBLING_STATE, "sibling-state" },
142 { GTK_CSS_CHANGE_PARENT_CLASS, "parent-class" },
143 { GTK_CSS_CHANGE_PARENT_NAME, "parent-name" },
144 { GTK_CSS_CHANGE_PARENT_ID, "parent-id" },
145 { GTK_CSS_CHANGE_PARENT_FIRST_CHILD, "parent-first-child" },
146 { GTK_CSS_CHANGE_PARENT_LAST_CHILD, "parent-last-child" },
147 { GTK_CSS_CHANGE_PARENT_NTH_CHILD, "parent-nth-child" },
148 { GTK_CSS_CHANGE_PARENT_NTH_LAST_CHILD, "parent-nth-last-child" },
149 { GTK_CSS_CHANGE_PARENT_STATE, "parent-state" },
150 { GTK_CSS_CHANGE_PARENT_SIBLING_CLASS, "parent-sibling-" },
151 { GTK_CSS_CHANGE_PARENT_SIBLING_NAME, "parent-sibling-name" },
152 { GTK_CSS_CHANGE_PARENT_SIBLING_ID, "parent-sibling-id" },
153 { GTK_CSS_CHANGE_PARENT_SIBLING_FIRST_CHILD, "parent-sibling-first-child" },
154 { GTK_CSS_CHANGE_PARENT_SIBLING_LAST_CHILD, "parent-sibling-last-child" },
155 { GTK_CSS_CHANGE_PARENT_SIBLING_NTH_CHILD, "parent-sibling-nth-child" },
156 { GTK_CSS_CHANGE_PARENT_SIBLING_NTH_LAST_CHILD, "parent-sibling-nth-last-child" },
157 { GTK_CSS_CHANGE_PARENT_SIBLING_STATE, "parent-sibling-state" },
158 { GTK_CSS_CHANGE_SOURCE, "source" },
159 { GTK_CSS_CHANGE_PARENT_STYLE, "parent-style" },
160 { GTK_CSS_CHANGE_TIMESTAMP, "timestamp" },
161 { GTK_CSS_CHANGE_ANIMATIONS, "animations" },
162 };
163 guint i;
164 gboolean first;
165
166 first = TRUE;
167
168 for (i = 0; i < G_N_ELEMENTS (names); i++)
169 {
170 if (change & names[i].flags)
171 {
172 if (first)
173 first = FALSE;
174 else
175 g_string_append (string, "|");
176 g_string_append (string, names[i].name);
177 }
178 }
179 }
180
181 GtkCssDimension
gtk_css_unit_get_dimension(GtkCssUnit unit)182 gtk_css_unit_get_dimension (GtkCssUnit unit)
183 {
184 switch (unit)
185 {
186 case GTK_CSS_NUMBER:
187 return GTK_CSS_DIMENSION_NUMBER;
188
189 case GTK_CSS_PERCENT:
190 return GTK_CSS_DIMENSION_PERCENTAGE;
191
192 case GTK_CSS_PX:
193 case GTK_CSS_PT:
194 case GTK_CSS_EM:
195 case GTK_CSS_EX:
196 case GTK_CSS_REM:
197 case GTK_CSS_PC:
198 case GTK_CSS_IN:
199 case GTK_CSS_CM:
200 case GTK_CSS_MM:
201 return GTK_CSS_DIMENSION_LENGTH;
202
203 case GTK_CSS_RAD:
204 case GTK_CSS_DEG:
205 case GTK_CSS_GRAD:
206 case GTK_CSS_TURN:
207 return GTK_CSS_DIMENSION_ANGLE;
208
209 case GTK_CSS_S:
210 case GTK_CSS_MS:
211 return GTK_CSS_DIMENSION_TIME;
212
213 default:
214 g_assert_not_reached ();
215 return GTK_CSS_DIMENSION_PERCENTAGE;
216 }
217 }
218
219 char *
gtk_css_change_to_string(GtkCssChange change)220 gtk_css_change_to_string (GtkCssChange change)
221 {
222 GString *string = g_string_new (NULL);
223
224 gtk_css_change_print (change, string);
225
226 return g_string_free (string, FALSE);
227 }
228
229