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4349 | Serge | 1 | /* cairo - a vector graphics library with display and print output |
2 | * |
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3 | * Copyright © 2005 Red Hat, Inc. |
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4 | * |
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5 | * This library is free software; you can redistribute it and/or |
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6 | * modify it either under the terms of the GNU Lesser General Public |
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7 | * License version 2.1 as published by the Free Software Foundation |
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8 | * (the "LGPL") or, at your option, under the terms of the Mozilla |
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9 | * Public License Version 1.1 (the "MPL"). If you do not alter this |
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10 | * notice, a recipient may use your version of this file under either |
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11 | * the MPL or the LGPL. |
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12 | * |
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13 | * You should have received a copy of the LGPL along with this library |
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14 | * in the file COPYING-LGPL-2.1; if not, write to the Free Software |
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15 | * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA |
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16 | * You should have received a copy of the MPL along with this library |
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17 | * in the file COPYING-MPL-1.1 |
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18 | * |
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19 | * The contents of this file are subject to the Mozilla Public License |
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20 | * Version 1.1 (the "License"); you may not use this file except in |
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21 | * compliance with the License. You may obtain a copy of the License at |
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22 | * http://www.mozilla.org/MPL/ |
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23 | * |
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24 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY |
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25 | * OF ANY KIND, either express or implied. See the LGPL or the MPL for |
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26 | * the specific language governing rights and limitations. |
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27 | * |
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28 | * The Original Code is the cairo graphics library. |
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29 | * |
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30 | * The Initial Developer of the Original Code is Red Hat, Inc. |
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31 | * |
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32 | * Contributor(s): |
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33 | * Carl D. Worth |
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34 | */ |
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35 | |||
36 | #ifndef CAIRO_GSTATE_PRIVATE_H |
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37 | #define CAIRO_GSTATE_PRIVATE_H |
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38 | |||
39 | #include "cairo-clip-private.h" |
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40 | |||
41 | struct _cairo_gstate { |
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42 | cairo_operator_t op; |
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43 | |||
44 | double opacity; |
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45 | double tolerance; |
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46 | cairo_antialias_t antialias; |
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47 | |||
48 | cairo_stroke_style_t stroke_style; |
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49 | |||
50 | cairo_fill_rule_t fill_rule; |
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51 | |||
52 | cairo_font_face_t *font_face; |
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53 | cairo_scaled_font_t *scaled_font; /* Specific to the current CTM */ |
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54 | cairo_scaled_font_t *previous_scaled_font; /* holdover */ |
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55 | cairo_matrix_t font_matrix; |
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56 | cairo_font_options_t font_options; |
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57 | |||
58 | cairo_clip_t *clip; |
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59 | |||
60 | cairo_surface_t *target; /* The target to which all rendering is directed */ |
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61 | cairo_surface_t *parent_target; /* The previous target which was receiving rendering */ |
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62 | cairo_surface_t *original_target; /* The original target the initial gstate was created with */ |
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63 | |||
64 | /* the user is allowed to update the device after we have cached the matrices... */ |
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65 | cairo_observer_t device_transform_observer; |
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66 | |||
67 | cairo_matrix_t ctm; |
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68 | cairo_matrix_t ctm_inverse; |
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69 | cairo_matrix_t source_ctm_inverse; /* At the time ->source was set */ |
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70 | cairo_bool_t is_identity; |
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71 | |||
72 | cairo_pattern_t *source; |
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73 | |||
74 | struct _cairo_gstate *next; |
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75 | }; |
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76 | |||
77 | /* cairo-gstate.c */ |
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78 | cairo_private cairo_status_t |
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79 | _cairo_gstate_init (cairo_gstate_t *gstate, |
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80 | cairo_surface_t *target); |
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81 | |||
82 | cairo_private void |
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83 | _cairo_gstate_fini (cairo_gstate_t *gstate); |
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84 | |||
85 | cairo_private cairo_status_t |
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86 | _cairo_gstate_save (cairo_gstate_t **gstate, cairo_gstate_t **freelist); |
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87 | |||
88 | cairo_private cairo_status_t |
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89 | _cairo_gstate_restore (cairo_gstate_t **gstate, cairo_gstate_t **freelist); |
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90 | |||
91 | cairo_private cairo_bool_t |
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92 | _cairo_gstate_is_group (cairo_gstate_t *gstate); |
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93 | |||
94 | cairo_private cairo_status_t |
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95 | _cairo_gstate_redirect_target (cairo_gstate_t *gstate, cairo_surface_t *child); |
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96 | |||
97 | cairo_private cairo_surface_t * |
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98 | _cairo_gstate_get_target (cairo_gstate_t *gstate); |
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99 | |||
100 | cairo_private cairo_surface_t * |
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101 | _cairo_gstate_get_original_target (cairo_gstate_t *gstate); |
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102 | |||
103 | cairo_private cairo_clip_t * |
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104 | _cairo_gstate_get_clip (cairo_gstate_t *gstate); |
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105 | |||
106 | cairo_private cairo_status_t |
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107 | _cairo_gstate_set_source (cairo_gstate_t *gstate, cairo_pattern_t *source); |
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108 | |||
109 | cairo_private cairo_pattern_t * |
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110 | _cairo_gstate_get_source (cairo_gstate_t *gstate); |
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111 | |||
112 | cairo_private cairo_status_t |
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113 | _cairo_gstate_set_operator (cairo_gstate_t *gstate, cairo_operator_t op); |
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114 | |||
115 | cairo_private cairo_operator_t |
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116 | _cairo_gstate_get_operator (cairo_gstate_t *gstate); |
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117 | |||
118 | cairo_private cairo_status_t |
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119 | _cairo_gstate_set_opacity (cairo_gstate_t *gstate, double opacity); |
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120 | |||
121 | cairo_private double |
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122 | _cairo_gstate_get_opacity (cairo_gstate_t *gstate); |
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123 | |||
124 | cairo_private cairo_status_t |
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125 | _cairo_gstate_set_tolerance (cairo_gstate_t *gstate, double tolerance); |
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126 | |||
127 | cairo_private double |
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128 | _cairo_gstate_get_tolerance (cairo_gstate_t *gstate); |
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129 | |||
130 | cairo_private cairo_status_t |
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131 | _cairo_gstate_set_fill_rule (cairo_gstate_t *gstate, cairo_fill_rule_t fill_rule); |
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132 | |||
133 | cairo_private cairo_fill_rule_t |
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134 | _cairo_gstate_get_fill_rule (cairo_gstate_t *gstate); |
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135 | |||
136 | cairo_private cairo_status_t |
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137 | _cairo_gstate_set_line_width (cairo_gstate_t *gstate, double width); |
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138 | |||
139 | cairo_private double |
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140 | _cairo_gstate_get_line_width (cairo_gstate_t *gstate); |
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141 | |||
142 | cairo_private cairo_status_t |
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143 | _cairo_gstate_set_line_cap (cairo_gstate_t *gstate, cairo_line_cap_t line_cap); |
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144 | |||
145 | cairo_private cairo_line_cap_t |
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146 | _cairo_gstate_get_line_cap (cairo_gstate_t *gstate); |
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147 | |||
148 | cairo_private cairo_status_t |
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149 | _cairo_gstate_set_line_join (cairo_gstate_t *gstate, cairo_line_join_t line_join); |
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150 | |||
151 | cairo_private cairo_line_join_t |
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152 | _cairo_gstate_get_line_join (cairo_gstate_t *gstate); |
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153 | |||
154 | cairo_private cairo_status_t |
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155 | _cairo_gstate_set_dash (cairo_gstate_t *gstate, const double *dash, int num_dashes, double offset); |
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156 | |||
157 | cairo_private void |
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158 | _cairo_gstate_get_dash (cairo_gstate_t *gstate, double *dash, int *num_dashes, double *offset); |
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159 | |||
160 | cairo_private cairo_status_t |
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161 | _cairo_gstate_set_miter_limit (cairo_gstate_t *gstate, double limit); |
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162 | |||
163 | cairo_private double |
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164 | _cairo_gstate_get_miter_limit (cairo_gstate_t *gstate); |
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165 | |||
166 | cairo_private void |
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167 | _cairo_gstate_get_matrix (cairo_gstate_t *gstate, cairo_matrix_t *matrix); |
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168 | |||
169 | cairo_private cairo_status_t |
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170 | _cairo_gstate_translate (cairo_gstate_t *gstate, double tx, double ty); |
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171 | |||
172 | cairo_private cairo_status_t |
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173 | _cairo_gstate_scale (cairo_gstate_t *gstate, double sx, double sy); |
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174 | |||
175 | cairo_private cairo_status_t |
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176 | _cairo_gstate_rotate (cairo_gstate_t *gstate, double angle); |
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177 | |||
178 | cairo_private cairo_status_t |
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179 | _cairo_gstate_transform (cairo_gstate_t *gstate, |
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180 | const cairo_matrix_t *matrix); |
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181 | |||
182 | cairo_private cairo_status_t |
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183 | _cairo_gstate_set_matrix (cairo_gstate_t *gstate, |
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184 | const cairo_matrix_t *matrix); |
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185 | |||
186 | cairo_private void |
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187 | _cairo_gstate_identity_matrix (cairo_gstate_t *gstate); |
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188 | |||
189 | cairo_private void |
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190 | _cairo_gstate_user_to_device (cairo_gstate_t *gstate, double *x, double *y); |
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191 | |||
192 | cairo_private void |
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193 | _cairo_gstate_user_to_device_distance (cairo_gstate_t *gstate, double *dx, double *dy); |
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194 | |||
195 | cairo_private void |
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196 | _cairo_gstate_device_to_user (cairo_gstate_t *gstate, double *x, double *y); |
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197 | |||
198 | cairo_private void |
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199 | _cairo_gstate_device_to_user_distance (cairo_gstate_t *gstate, double *dx, double *dy); |
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200 | |||
201 | cairo_private void |
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202 | _do_cairo_gstate_user_to_backend (cairo_gstate_t *gstate, double *x, double *y); |
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203 | |||
204 | static inline void |
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205 | _cairo_gstate_user_to_backend (cairo_gstate_t *gstate, double *x, double *y) |
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206 | { |
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207 | if (! gstate->is_identity) |
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208 | _do_cairo_gstate_user_to_backend (gstate, x, y); |
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209 | } |
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210 | |||
211 | cairo_private void |
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212 | _do_cairo_gstate_user_to_backend_distance (cairo_gstate_t *gstate, double *x, double *y); |
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213 | |||
214 | static inline void |
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215 | _cairo_gstate_user_to_backend_distance (cairo_gstate_t *gstate, double *x, double *y) |
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216 | { |
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217 | if (! gstate->is_identity) |
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218 | _do_cairo_gstate_user_to_backend_distance (gstate, x, y); |
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219 | } |
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220 | |||
221 | cairo_private void |
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222 | _do_cairo_gstate_backend_to_user (cairo_gstate_t *gstate, double *x, double *y); |
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223 | |||
224 | static inline void |
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225 | _cairo_gstate_backend_to_user (cairo_gstate_t *gstate, double *x, double *y) |
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226 | { |
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227 | if (! gstate->is_identity) |
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228 | _do_cairo_gstate_backend_to_user (gstate, x, y); |
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229 | } |
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230 | |||
231 | cairo_private void |
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232 | _do_cairo_gstate_backend_to_user_distance (cairo_gstate_t *gstate, double *x, double *y); |
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233 | |||
234 | static inline void |
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235 | _cairo_gstate_backend_to_user_distance (cairo_gstate_t *gstate, double *x, double *y) |
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236 | { |
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237 | if (! gstate->is_identity) |
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238 | _do_cairo_gstate_backend_to_user_distance (gstate, x, y); |
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239 | } |
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240 | |||
241 | cairo_private void |
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242 | _cairo_gstate_backend_to_user_rectangle (cairo_gstate_t *gstate, |
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243 | double *x1, double *y1, |
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244 | double *x2, double *y2, |
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245 | cairo_bool_t *is_tight); |
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246 | |||
247 | cairo_private void |
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248 | _cairo_gstate_path_extents (cairo_gstate_t *gstate, |
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249 | cairo_path_fixed_t *path, |
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250 | double *x1, double *y1, |
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251 | double *x2, double *y2); |
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252 | |||
253 | cairo_private cairo_status_t |
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254 | _cairo_gstate_paint (cairo_gstate_t *gstate); |
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255 | |||
256 | cairo_private cairo_status_t |
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257 | _cairo_gstate_mask (cairo_gstate_t *gstate, |
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258 | cairo_pattern_t *mask); |
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259 | |||
260 | cairo_private cairo_status_t |
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261 | _cairo_gstate_stroke (cairo_gstate_t *gstate, cairo_path_fixed_t *path); |
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262 | |||
263 | cairo_private cairo_status_t |
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264 | _cairo_gstate_fill (cairo_gstate_t *gstate, cairo_path_fixed_t *path); |
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265 | |||
266 | cairo_private cairo_status_t |
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267 | _cairo_gstate_copy_page (cairo_gstate_t *gstate); |
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268 | |||
269 | cairo_private cairo_status_t |
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270 | _cairo_gstate_show_page (cairo_gstate_t *gstate); |
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271 | |||
272 | cairo_private cairo_status_t |
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273 | _cairo_gstate_stroke_extents (cairo_gstate_t *gstate, |
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274 | cairo_path_fixed_t *path, |
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275 | double *x1, double *y1, |
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276 | double *x2, double *y2); |
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277 | |||
278 | cairo_private cairo_status_t |
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279 | _cairo_gstate_fill_extents (cairo_gstate_t *gstate, |
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280 | cairo_path_fixed_t *path, |
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281 | double *x1, double *y1, |
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282 | double *x2, double *y2); |
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283 | |||
284 | cairo_private cairo_status_t |
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285 | _cairo_gstate_in_stroke (cairo_gstate_t *gstate, |
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286 | cairo_path_fixed_t *path, |
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287 | double x, |
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288 | double y, |
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289 | cairo_bool_t *inside_ret); |
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290 | |||
291 | cairo_private cairo_bool_t |
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292 | _cairo_gstate_in_fill (cairo_gstate_t *gstate, |
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293 | cairo_path_fixed_t *path, |
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294 | double x, |
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295 | double y); |
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296 | |||
297 | cairo_private cairo_bool_t |
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298 | _cairo_gstate_in_clip (cairo_gstate_t *gstate, |
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299 | double x, |
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300 | double y); |
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301 | |||
302 | cairo_private cairo_status_t |
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303 | _cairo_gstate_clip (cairo_gstate_t *gstate, cairo_path_fixed_t *path); |
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304 | |||
305 | cairo_private cairo_status_t |
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306 | _cairo_gstate_reset_clip (cairo_gstate_t *gstate); |
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307 | |||
308 | cairo_private cairo_bool_t |
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309 | _cairo_gstate_clip_extents (cairo_gstate_t *gstate, |
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310 | double *x1, |
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311 | double *y1, |
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312 | double *x2, |
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313 | double *y2); |
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314 | |||
315 | cairo_private cairo_rectangle_list_t* |
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316 | _cairo_gstate_copy_clip_rectangle_list (cairo_gstate_t *gstate); |
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317 | |||
318 | cairo_private cairo_status_t |
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319 | _cairo_gstate_show_surface (cairo_gstate_t *gstate, |
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320 | cairo_surface_t *surface, |
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321 | double x, |
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322 | double y, |
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323 | double width, |
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324 | double height); |
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325 | |||
326 | cairo_private cairo_status_t |
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327 | _cairo_gstate_set_font_size (cairo_gstate_t *gstate, |
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328 | double size); |
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329 | |||
330 | cairo_private void |
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331 | _cairo_gstate_get_font_matrix (cairo_gstate_t *gstate, |
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332 | cairo_matrix_t *matrix); |
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333 | |||
334 | cairo_private cairo_status_t |
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335 | _cairo_gstate_set_font_matrix (cairo_gstate_t *gstate, |
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336 | const cairo_matrix_t *matrix); |
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337 | |||
338 | cairo_private void |
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339 | _cairo_gstate_get_font_options (cairo_gstate_t *gstate, |
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340 | cairo_font_options_t *options); |
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341 | |||
342 | cairo_private void |
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343 | _cairo_gstate_set_font_options (cairo_gstate_t *gstate, |
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344 | const cairo_font_options_t *options); |
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345 | |||
346 | cairo_private cairo_status_t |
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347 | _cairo_gstate_get_font_face (cairo_gstate_t *gstate, |
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348 | cairo_font_face_t **font_face); |
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349 | |||
350 | cairo_private cairo_status_t |
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351 | _cairo_gstate_get_scaled_font (cairo_gstate_t *gstate, |
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352 | cairo_scaled_font_t **scaled_font); |
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353 | |||
354 | cairo_private cairo_status_t |
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355 | _cairo_gstate_get_font_extents (cairo_gstate_t *gstate, |
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356 | cairo_font_extents_t *extents); |
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357 | |||
358 | cairo_private cairo_status_t |
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359 | _cairo_gstate_set_font_face (cairo_gstate_t *gstate, |
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360 | cairo_font_face_t *font_face); |
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361 | |||
362 | cairo_private cairo_status_t |
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363 | _cairo_gstate_glyph_extents (cairo_gstate_t *gstate, |
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364 | const cairo_glyph_t *glyphs, |
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365 | int num_glyphs, |
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366 | cairo_text_extents_t *extents); |
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367 | |||
368 | cairo_private cairo_status_t |
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369 | _cairo_gstate_show_text_glyphs (cairo_gstate_t *gstate, |
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370 | const cairo_glyph_t *glyphs, |
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371 | int num_glyphs, |
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372 | cairo_glyph_text_info_t *info); |
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373 | |||
374 | cairo_private cairo_status_t |
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375 | _cairo_gstate_glyph_path (cairo_gstate_t *gstate, |
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376 | const cairo_glyph_t *glyphs, |
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377 | int num_glyphs, |
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378 | cairo_path_fixed_t *path); |
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379 | |||
380 | cairo_private cairo_status_t |
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381 | _cairo_gstate_set_antialias (cairo_gstate_t *gstate, |
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382 | cairo_antialias_t antialias); |
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383 | |||
384 | cairo_private cairo_antialias_t |
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385 | _cairo_gstate_get_antialias (cairo_gstate_t *gstate); |
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386 | |||
387 | #endif /* CAIRO_GSTATE_PRIVATE_H */ |