1 | /*
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2 | * Copyright (c) 2021 Jiri Svoboda
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3 | * All rights reserved.
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4 | *
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5 | * Redistribution and use in source and binary forms, with or without
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6 | * modification, are permitted provided that the following conditions
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7 | * are met:
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8 | *
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9 | * - Redistributions of source code must retain the above copyright
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10 | * notice, this list of conditions and the following disclaimer.
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11 | * - Redistributions in binary form must reproduce the above copyright
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12 | * notice, this list of conditions and the following disclaimer in the
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13 | * documentation and/or other materials provided with the distribution.
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14 | * - The name of the author may not be used to endorse or promote products
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15 | * derived from this software without specific prior written permission.
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16 | *
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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27 | */
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28 |
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29 | #include <gfx/color.h>
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30 | #include <gfx/context.h>
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31 | #include <gfx/font.h>
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32 | #include <gfx/glyph.h>
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33 | #include <gfx/text.h>
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34 | #include <gfx/typeface.h>
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35 | #include <pcut/pcut.h>
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36 | #include "../private/font.h"
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37 | #include "../private/typeface.h"
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38 | #include "../private/testgc.h"
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39 |
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40 | PCUT_INIT;
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41 |
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42 | PCUT_TEST_SUITE(text);
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43 |
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44 | /** Test text width computation with a dummy font */
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45 | PCUT_TEST(dummy_text_width)
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46 | {
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47 | gfx_font_props_t props;
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48 | gfx_font_metrics_t metrics;
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49 | gfx_typeface_t *tface;
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50 | gfx_font_t *font;
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51 | gfx_context_t *gc;
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52 | gfx_coord_t width;
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53 | test_gc_t tgc;
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54 | errno_t rc;
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55 |
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56 | rc = gfx_context_new(&test_ops, (void *)&tgc, &gc);
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57 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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58 |
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59 | rc = gfx_typeface_create(gc, &tface);
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60 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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61 |
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62 | gfx_font_props_init(&props);
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63 | gfx_font_metrics_init(&metrics);
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64 | rc = gfx_font_create(tface, &props, &metrics, &font);
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65 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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66 |
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67 | width = gfx_text_width(font, "Hello world!");
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68 | PCUT_ASSERT_INT_EQUALS(0, width);
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69 |
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70 | gfx_font_close(font);
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71 | gfx_typeface_destroy(tface);
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72 |
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73 | rc = gfx_context_delete(gc);
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74 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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75 | }
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76 |
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77 | /** Test text rendering with a dummy font */
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78 | PCUT_TEST(dummy_puttext)
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79 | {
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80 | gfx_font_props_t props;
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81 | gfx_font_metrics_t metrics;
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82 | gfx_typeface_t *tface;
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83 | gfx_font_t *font;
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84 | gfx_context_t *gc;
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85 | gfx_color_t *color;
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86 | gfx_text_fmt_t fmt;
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87 | gfx_coord2_t pos;
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88 | test_gc_t tgc;
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89 | errno_t rc;
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90 |
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91 | rc = gfx_context_new(&test_ops, (void *)&tgc, &gc);
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92 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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93 |
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94 | rc = gfx_color_new_rgb_i16(0, 0, 0, &color);
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95 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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96 |
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97 | rc = gfx_typeface_create(gc, &tface);
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98 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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99 |
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100 | gfx_font_props_init(&props);
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101 | gfx_font_metrics_init(&metrics);
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102 | rc = gfx_font_create(tface, &props, &metrics, &font);
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103 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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104 |
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105 | gfx_text_fmt_init(&fmt);
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106 | fmt.font = font;
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107 | fmt.color = color;
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108 | pos.x = 0;
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109 | pos.y = 0;
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110 |
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111 | rc = gfx_puttext(&pos, &fmt, "Hello world!");
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112 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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113 |
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114 | gfx_font_close(font);
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115 | gfx_typeface_destroy(tface);
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116 | gfx_color_delete(color);
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117 |
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118 | rc = gfx_context_delete(gc);
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119 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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120 | }
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121 |
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122 | /** gfx_text_start_pos() correctly computes text start position */
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123 | PCUT_TEST(text_start_pos)
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124 | {
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125 | gfx_font_props_t props;
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126 | gfx_font_metrics_t metrics;
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127 | gfx_typeface_t *tface;
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128 | gfx_font_t *font;
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129 | gfx_context_t *gc;
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130 | gfx_color_t *color;
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131 | gfx_text_fmt_t fmt;
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132 | gfx_coord2_t pos;
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133 | test_gc_t tgc;
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134 | errno_t rc;
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135 |
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136 | rc = gfx_context_new(&test_ops, (void *)&tgc, &gc);
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137 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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138 |
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139 | rc = gfx_color_new_rgb_i16(0, 0, 0, &color);
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140 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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141 |
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142 | rc = gfx_typeface_create(gc, &tface);
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143 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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144 |
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145 | gfx_font_props_init(&props);
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146 | gfx_font_metrics_init(&metrics);
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147 | metrics.ascent = 10; // XXX
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148 | metrics.descent = 10; // XXX
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149 | rc = gfx_font_create(tface, &props, &metrics, &font);
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150 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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151 |
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152 | gfx_text_fmt_init(&fmt);
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153 | fmt.font = font;
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154 | fmt.color = color;
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155 | pos.x = 0;
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156 | pos.y = 0;
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157 |
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158 | rc = gfx_puttext(&pos, &fmt, "Hello world!");
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159 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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160 |
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161 | gfx_font_close(font);
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162 | gfx_typeface_destroy(tface);
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163 | gfx_color_delete(color);
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164 |
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165 | rc = gfx_context_delete(gc);
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166 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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167 | }
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168 |
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169 | /** gfx_text_find_pos() finds position in text */
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170 | PCUT_TEST(text_find_pos)
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171 | {
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172 | gfx_font_props_t props;
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173 | gfx_font_metrics_t metrics;
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174 | gfx_typeface_t *tface;
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175 | gfx_font_t *font;
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176 | gfx_glyph_metrics_t gmetrics;
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177 | gfx_glyph_t *glyph1;
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178 | gfx_glyph_t *glyph2;
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179 | gfx_context_t *gc;
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180 | gfx_text_fmt_t fmt;
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181 | gfx_coord2_t anchor;
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182 | gfx_coord2_t fpos;
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183 | size_t off;
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184 | test_gc_t tgc;
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185 | errno_t rc;
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186 |
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187 | rc = gfx_context_new(&test_ops, (void *)&tgc, &gc);
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188 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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189 |
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190 | rc = gfx_typeface_create(gc, &tface);
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191 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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192 |
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193 | gfx_font_props_init(&props);
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194 | gfx_font_metrics_init(&metrics);
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195 | rc = gfx_font_create(tface, &props, &metrics, &font);
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196 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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197 |
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198 | /* Need to create some glyphs with metrics */
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199 | gfx_glyph_metrics_init(&gmetrics);
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200 | gmetrics.advance = 10;
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201 |
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202 | rc = gfx_glyph_create(font, &gmetrics, &glyph1);
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203 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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204 |
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205 | rc = gfx_glyph_set_pattern(glyph1, "A");
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206 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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207 |
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208 | gfx_glyph_metrics_init(&gmetrics);
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209 | gmetrics.advance = 1;
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210 |
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211 | rc = gfx_glyph_create(font, &gmetrics, &glyph2);
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212 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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213 |
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214 | rc = gfx_glyph_set_pattern(glyph2, "i");
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215 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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216 |
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217 | gfx_text_fmt_init(&fmt);
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218 | fmt.font = font;
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219 | anchor.x = 10;
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220 | anchor.y = 0;
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221 |
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222 | fpos.x = 9;
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223 | fpos.y = 0;
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224 | off = gfx_text_find_pos(&anchor, &fmt, "Aii", &fpos);
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225 | PCUT_ASSERT_INT_EQUALS(0, off);
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226 |
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227 | fpos.x = 10;
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228 | fpos.y = 0;
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229 | off = gfx_text_find_pos(&anchor, &fmt, "Aii", &fpos);
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230 | PCUT_ASSERT_INT_EQUALS(0, off);
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231 |
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232 | fpos.x = 11;
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233 | fpos.y = 0;
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234 | off = gfx_text_find_pos(&anchor, &fmt, "Aii", &fpos);
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235 | PCUT_ASSERT_INT_EQUALS(0, off);
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236 |
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237 | fpos.x = 19;
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238 | fpos.y = 0;
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239 | off = gfx_text_find_pos(&anchor, &fmt, "Aii", &fpos);
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240 | PCUT_ASSERT_INT_EQUALS(1, off);
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241 |
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242 | fpos.x = 20;
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243 | fpos.y = 0;
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244 | off = gfx_text_find_pos(&anchor, &fmt, "Aii", &fpos);
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245 | PCUT_ASSERT_INT_EQUALS(2, off);
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246 |
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247 | fpos.x = 21;
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248 | fpos.y = 0;
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249 | off = gfx_text_find_pos(&anchor, &fmt, "Aii", &fpos);
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250 | PCUT_ASSERT_INT_EQUALS(3, off);
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251 |
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252 | fpos.x = 22;
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253 | fpos.y = 0;
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254 | off = gfx_text_find_pos(&anchor, &fmt, "Aii", &fpos);
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255 | PCUT_ASSERT_INT_EQUALS(3, off);
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256 |
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257 | gfx_glyph_destroy(glyph1);
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258 | gfx_glyph_destroy(glyph2);
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259 |
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260 | gfx_font_close(font);
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261 | gfx_typeface_destroy(tface);
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262 |
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263 | rc = gfx_context_delete(gc);
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264 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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265 | }
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266 |
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267 | /** gfx_text_find_pos() finds position in text in text mode */
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268 | PCUT_TEST(text_find_pos_text)
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269 | {
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270 | gfx_typeface_t *tface;
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271 | gfx_font_t *font;
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272 | gfx_context_t *gc;
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273 | test_gc_t tgc;
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274 | size_t off;
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275 | gfx_text_fmt_t fmt;
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276 | gfx_coord2_t anchor;
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277 | gfx_coord2_t fpos;
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278 | errno_t rc;
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279 |
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280 | rc = gfx_context_new(&test_ops, (void *)&tgc, &gc);
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281 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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282 |
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283 | rc = gfx_typeface_create(gc, &tface);
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284 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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285 |
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286 | rc = gfx_font_create_textmode(tface, &font);
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287 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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288 |
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289 | anchor.x = 10;
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290 | anchor.y = 0;
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291 | gfx_text_fmt_init(&fmt);
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292 | fmt.font = font;
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293 |
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294 | fpos.x = 9;
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295 | fpos.y = 0;
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296 | off = gfx_text_find_pos(&anchor, &fmt, "Abc", &fpos);
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297 | PCUT_ASSERT_INT_EQUALS(0, off);
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298 |
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299 | fpos.x = 10;
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300 | fpos.y = 0;
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301 | off = gfx_text_find_pos(&anchor, &fmt, "Abc", &fpos);
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302 | PCUT_ASSERT_INT_EQUALS(0, off);
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303 |
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304 | fpos.x = 11;
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305 | fpos.y = 0;
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306 | off = gfx_text_find_pos(&anchor, &fmt, "Abc", &fpos);
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307 | PCUT_ASSERT_INT_EQUALS(1, off);
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308 |
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309 | fpos.x = 12;
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310 | fpos.y = 0;
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311 | off = gfx_text_find_pos(&anchor, &fmt, "Abc", &fpos);
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312 | PCUT_ASSERT_INT_EQUALS(2, off);
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313 |
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314 | fpos.x = 13;
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315 | fpos.y = 0;
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316 | off = gfx_text_find_pos(&anchor, &fmt, "Abc", &fpos);
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317 | PCUT_ASSERT_INT_EQUALS(3, off);
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318 |
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319 | fpos.x = 14;
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320 | fpos.y = 0;
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321 | off = gfx_text_find_pos(&anchor, &fmt, "Abc", &fpos);
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322 | PCUT_ASSERT_INT_EQUALS(3, off);
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323 |
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324 | gfx_font_close(font);
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325 | gfx_typeface_destroy(tface);
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326 |
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327 | rc = gfx_context_delete(gc);
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328 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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329 | }
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330 |
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331 | /** gfx_text_cont() produces correct continuation parameters */
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332 | PCUT_TEST(text_cont)
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333 | {
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334 | gfx_typeface_t *tface;
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335 | gfx_font_t *font;
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336 | gfx_context_t *gc;
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337 | gfx_color_t *color;
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338 | test_gc_t tgc;
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339 | gfx_text_fmt_t fmt;
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340 | gfx_coord2_t anchor;
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341 | gfx_coord2_t cpos;
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342 | gfx_text_fmt_t cfmt;
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343 | errno_t rc;
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344 |
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345 | rc = gfx_context_new(&test_ops, (void *)&tgc, &gc);
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346 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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347 |
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348 | rc = gfx_typeface_create(gc, &tface);
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349 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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350 |
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351 | rc = gfx_font_create_textmode(tface, &font);
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352 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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353 |
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354 | rc = gfx_color_new_rgb_i16(0, 0, 0, &color);
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355 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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356 |
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357 | anchor.x = 10;
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358 | anchor.y = 20;
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359 | gfx_text_fmt_init(&fmt);
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360 | fmt.font = font;
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361 | fmt.color = color;
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362 |
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363 | gfx_text_cont(&anchor, &fmt, "Abc", &cpos, &cfmt);
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364 |
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365 | PCUT_ASSERT_INT_EQUALS(13, cpos.x);
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366 | PCUT_ASSERT_INT_EQUALS(20, cpos.y);
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367 | PCUT_ASSERT_EQUALS(fmt.color, cfmt.color);
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368 | PCUT_ASSERT_EQUALS(gfx_halign_left, cfmt.halign);
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369 | PCUT_ASSERT_EQUALS(gfx_valign_baseline, cfmt.valign);
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370 |
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371 | gfx_font_close(font);
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372 | gfx_typeface_destroy(tface);
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373 | gfx_color_delete(color);
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374 |
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375 | rc = gfx_context_delete(gc);
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376 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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377 | }
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378 |
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379 | /** gfx_text_rect() computes bounding rectangle */
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380 | PCUT_TEST(text_rect)
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381 | {
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382 | gfx_typeface_t *tface;
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383 | gfx_font_t *font;
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384 | gfx_context_t *gc;
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385 | gfx_color_t *color;
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386 | test_gc_t tgc;
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387 | gfx_text_fmt_t fmt;
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388 | gfx_coord2_t anchor;
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389 | gfx_rect_t rect;
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390 | errno_t rc;
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391 |
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392 | rc = gfx_context_new(&test_ops, (void *)&tgc, &gc);
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393 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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394 |
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395 | rc = gfx_typeface_create(gc, &tface);
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396 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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397 |
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398 | rc = gfx_font_create_textmode(tface, &font);
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399 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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400 |
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401 | rc = gfx_color_new_rgb_i16(0, 0, 0, &color);
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402 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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403 |
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404 | anchor.x = 10;
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405 | anchor.y = 20;
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406 | gfx_text_fmt_init(&fmt);
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407 | fmt.font = font;
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408 | fmt.color = color;
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409 |
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410 | gfx_text_rect(&anchor, &fmt, "Abc", &rect);
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411 |
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412 | PCUT_ASSERT_INT_EQUALS(10, rect.p0.x);
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413 | PCUT_ASSERT_INT_EQUALS(20, rect.p0.y);
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414 | PCUT_ASSERT_INT_EQUALS(13, rect.p1.x);
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415 | PCUT_ASSERT_INT_EQUALS(21, rect.p1.y);
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416 |
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417 | gfx_font_close(font);
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418 | gfx_typeface_destroy(tface);
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419 | gfx_color_delete(color);
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420 |
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421 | rc = gfx_context_delete(gc);
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422 | PCUT_ASSERT_ERRNO_VAL(EOK, rc);
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423 | }
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424 |
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425 | PCUT_EXPORT(text);
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