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annotate src/shape_stext.c @ 421:1e48453bb282

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Make compute_styled_extents_n_scaled_font() pass the test.
author Thinker K.F. Li <thinker@branda.to>
date Sun, 26 Jul 2009 22:13:36 +0800
parents 485c563514f4
children c6c0d017dc8e
rev   line source
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
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1 #include <stdio.h>
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2 #include <cairo.h>
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3 #include <cairo-ft.h>
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4 #include <fontconfig/fontconfig.h>
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5 #include "mb_shapes.h"
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6
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7 #ifdef UNITTEST
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8 typedef struct _ut_shape {
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9 co_aix aggr[6];
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10 void (*free)(struct _ut_shape *);
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11 } ut_shape_t;
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12 #define shape_t ut_shape_t
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13
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14 #undef sh_get_aggr_matrix
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15 #define sh_get_aggr_matrix(sh) (sh)->aggr
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16
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17 #undef mb_obj_init
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18 #define mb_obj_init(o, t)
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19 #undef rdman_shape_man
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20 #define rdman_shape_man(rdman, sh)
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21
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22 #define rdman_shape_stext_new ut_rdman_shape_stext_new
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23 #define sh_stext_transform ut_sh_stext_transform
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24 #define sh_stext_draw ut_sh_stext_draw
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25 #define sh_stext_set_text ut_sh_stext_set_text
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26 #define sh_stext_set_style ut_sh_stext_set_style
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27
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28 #endif /* UNITTEST */
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29
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30 #ifndef ASSERT
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31 #define ASSERT(x)
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32 #endif
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33 #define OK 0
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34 #define ERR -1
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35
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36 /*! \page stext Simple Text
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37 *
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38 * A sh_stext_t is broken into fragments. Each fragment comprises the text
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39 * and the styles applied on the fragement. The styles determines font face
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40 * used to show the text. The fragment of text with styles is called
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41 * styled block.
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42 */
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43
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44 /*! \defgroup fontconfig_freetype Fontconfig and FreeType Layer.
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45 *
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46 * This layer implements a font provider to rest of the system.
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47 * It bases on fontconfig and FreeType supporting of Cairo.
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48 * If you want to provide stext with technologies other than fontconfig and
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49 * FreeType, just replace this layer with the implmenetation that you want.
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50 *
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51 * @{
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52 */
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53 /*! \brief Stakeholder of scaled font.
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54 *
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55 * It is actually a cairo_scaled_font_t, now. But, it should not be
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56 * noticed by out-siders. Only \ref fontconfig_freetype
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57 * should known it.
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58 */
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59 typedef struct _mb_scaled_font mb_scaled_font_t;
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60
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61 /*! \brief Stakeholder of scaled font.
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62 *
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63 * Although, mb_text_extents_t is defined as a cairo_scaled_font_t, but
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64 * programmers should assume it is opague.
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65 *
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66 * An extents is the span of showing a fragement of text on the output device.
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67 * It includes x and y advance of cursor after showinng the text.
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68 * The cursor maybe not really existed. But, the advance is computed as
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69 * the cursor existed. It also includes width and height of the text.
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70 * The bearing of a styled block is the left-top corner of the bounding box.
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71 * The bounding box of a styled block is the minimal rectangle, on the
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72 * output device, that can contain the text. The bearing is related to
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73 * the base line for an extents.
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74 */
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75 typedef cairo_text_extents_t mb_text_extents_t;
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76
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77 #define MBE_GET_X_ADV(ext) ((ext)->x_advance)
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78 #define MBE_GET_Y_ADV(ext) ((ext)->y_advance)
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79 #define MBE_GET_X_BEARING(ext) ((ext)->x_bearing)
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80 #define MBE_GET_Y_BEARING(ext) ((ext)->y_bearing)
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81 #define MBE_GET_WIDTH(ext) ((ext)->width)
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82 #define MBE_GET_HEIGHT(ext) ((ext)->height)
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83 #define MBE_SET_X_ADV(ext, v) do { ((ext)->x_advance) = v; } while(0)
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84 #define MBE_SET_Y_ADV(ext, v) do { ((ext)->y_advance) = v; } while(0)
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85 #define MBE_SET_X_BEARING(ext, v) do { ((ext)->x_bearing) = v; } while(0)
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86 #define MBE_SET_Y_BEARING(ext, v) do { ((ext)->y_bearing) = v; } while(0)
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87 #define MBE_SET_WIDTH(ext, v) do { ((ext)->width) = v; } while(0)
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88 #define MBE_SET_HEIGHT(ext, v) do { ((ext)->height) = v; } while(0)
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89
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90 /*! \brief Find out a font pattern.
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91 *
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92 * This function use fontconfig to decide a font file in pattern. It can
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93 * replaced by other mechanism if you think it is not what you want.
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94 *
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95 * \param slant make font prune if it it non-zero.
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96 * \param weight make font normal if it is 100.
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97 */
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98 static
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99 FcPattern *query_font_pattern(const char *family, int slant, int weight) {
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100 FcPattern *ptn, *p, *fn_ptn;
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101 FcValue val;
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102 FcConfig *cfg;
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103 FcBool r;
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104 FcResult result;
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105 static int slant_map[] = { /* from MB_FONT_SLANT_* to FC_SLANT_* */
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106 FC_SLANT_ROMAN,
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107 FC_SLANT_ROMAN,
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108 FC_SLANT_ITALIC,
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109 FC_SLANT_OBLIQUE};
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110
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111 cfg = FcConfigGetCurrent();
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112 ptn = FcPatternCreate();
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113 p = FcPatternCreate();
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114 if(ptn == NULL || p == NULL)
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115 goto err;
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116
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117 val.type = FcTypeString;
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118 val.u.s = family;
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119 FcPatternAdd(ptn, "family", val, FcTrue);
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120
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121 val.type = FcTypeInteger;
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122 val.u.i = slant_map[slant];
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123 FcPatternAdd(ptn, "slant", val, FcTrue);
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124
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125 val.type = FcTypeInteger;
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126 val.u.i = weight;
410
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
127 FcPatternAdd(ptn, "weight", val, FcTrue);
394
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
128
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
129 r = FcConfigSubstituteWithPat(cfg, ptn, NULL, FcMatchPattern);
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
130 if(!r)
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
131 goto err;
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
132
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
133 r = FcConfigSubstituteWithPat(cfg, p, ptn, FcMatchFont);
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
134 if(!r)
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern
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parents: 393
diff changeset
135 goto err;
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Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
136
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
137 FcDefaultSubstitute(p);
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parents: 393
diff changeset
138
413
35712e4bad0e Make shape_stext.c pass test cases.
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parents: 412
diff changeset
139 fn_ptn = FcFontMatch(cfg, p, &result);
394
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern
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parents: 393
diff changeset
140
413
35712e4bad0e Make shape_stext.c pass test cases.
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parents: 412
diff changeset
141 /* It is supposed to return FcResultMatch. But, it is no, now.
35712e4bad0e Make shape_stext.c pass test cases.
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parents: 412
diff changeset
142 * I don't know why. Someone should figure out the issue.
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parents: 412
diff changeset
143 */
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parents: 412
diff changeset
144 #if 0
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parents: 412
diff changeset
145 if(result != FcResultMatch) {
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parents: 412
diff changeset
146 printf("%d %d\n", result, FcResultMatch);
35712e4bad0e Make shape_stext.c pass test cases.
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parents: 412
diff changeset
147 goto err;
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parents: 412
diff changeset
148 }
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parents: 412
diff changeset
149 #endif
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parents: 412
diff changeset
150 if(fn_ptn == NULL)
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Thinker K.F. Li <thinker@branda.to>
parents: 412
diff changeset
151 goto err;
35712e4bad0e Make shape_stext.c pass test cases.
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parents: 412
diff changeset
152
35712e4bad0e Make shape_stext.c pass test cases.
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parents: 412
diff changeset
153 FcPatternDestroy(ptn);
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parents: 412
diff changeset
154 FcPatternDestroy(p);
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parents: 412
diff changeset
155
35712e4bad0e Make shape_stext.c pass test cases.
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parents: 412
diff changeset
156 return fn_ptn;
394
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Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
157
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
158 err:
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Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
159 if(ptn)
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parents: 393
diff changeset
160 FcPatternDestroy(ptn);
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Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
161 if(p)
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parents: 393
diff changeset
162 FcPatternDestroy(p);
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parents: 393
diff changeset
163 return NULL;
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parents: 393
diff changeset
164
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parents: 393
diff changeset
165 }
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parents: 393
diff changeset
166
395
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diff changeset
167 /*! \brief Find out a font face for a pattern specified.
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diff changeset
168 *
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diff changeset
169 * The pattern, here, is a vector of family, slant, and weight.
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diff changeset
170 * This function base on fontconfig and cairo FreeType font supporting.
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diff changeset
171 * You can replace this function with other font mechanisms.
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diff changeset
172 */
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diff changeset
173 static
396
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parents: 395
diff changeset
174 mb_font_face_t *query_font_face(const char *family, int slant, int weight) {
395
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
175 cairo_font_face_t *cface;
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parents: 394
diff changeset
176 FcPattern *ptn;
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parents: 394
diff changeset
177
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diff changeset
178 ptn = query_font_pattern(family, slant, weight);
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diff changeset
179 cface = cairo_ft_font_face_create_for_pattern(ptn);
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parents: 394
diff changeset
180 FcPatternDestroy(ptn);
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parents: 394
diff changeset
181
396
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
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parents: 395
diff changeset
182 return (mb_font_face_t *)cface;
395
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parents: 394
diff changeset
183 }
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
184
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parents: 394
diff changeset
185 static
396
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
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parents: 395
diff changeset
186 void free_font_face(mb_font_face_t *face) {
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
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parents: 395
diff changeset
187 ASSERT(face == NULL);
395
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
188
396
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
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diff changeset
189 cairo_font_face_destroy((cairo_font_face_t *)face);
395
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parents: 394
diff changeset
190 }
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parents: 394
diff changeset
191
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
192 /*! \brief This is scaled font for specified size and extent.
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parents: 394
diff changeset
193 *
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parents: 394
diff changeset
194 * Font face only specified which font would be used to draw text
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parents: 394
diff changeset
195 * message. But, it also need to scale glyphs to specified size and
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
196 * rotation. This function return a scaled font specified by a
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
197 * matrix that transform glyph from design space of the font to
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
198 * user space of cairo surface.
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parents: 394
diff changeset
199 */
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parents: 394
diff changeset
200 static
397
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
201 mb_scaled_font_t *make_scaled_font_face_matrix(mb_font_face_t *face,
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
202 co_aix *matrix) {
410
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
203 cairo_scaled_font_t *scaled_font;
395
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
204 cairo_matrix_t font_matrix;
410
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
205 static cairo_matrix_t id = {
395
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
206 1, 0,
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
207 0, 1,
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parents: 394
diff changeset
208 0, 0
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
209 };
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parents: 394
diff changeset
210 static cairo_font_options_t *opt = NULL;
413
35712e4bad0e Make shape_stext.c pass test cases.
Thinker K.F. Li <thinker@branda.to>
parents: 412
diff changeset
211
395
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
212 ASSERT(matrix != NULL);
413
35712e4bad0e Make shape_stext.c pass test cases.
Thinker K.F. Li <thinker@branda.to>
parents: 412
diff changeset
213
395
d30b575a4ad4 Add fontconfig layer
Thinker K.F. Li <thinker@branda.to>
parents: 394
diff changeset
214 if(opt == NULL) {
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
215 opt = cairo_font_options_create();
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
216 if(opt == NULL)
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
217 return NULL;
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
218 }
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
219
d30b575a4ad4 Add fontconfig layer
Thinker K.F. Li <thinker@branda.to>
parents: 394
diff changeset
220 font_matrix.xx = *matrix++;
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
221 font_matrix.xy = *matrix++;
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
222 font_matrix.x0 = *matrix++;
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
223 font_matrix.yx = *matrix++;
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
224 font_matrix.yy = *matrix++;
d30b575a4ad4 Add fontconfig layer
Thinker K.F. Li <thinker@branda.to>
parents: 394
diff changeset
225 font_matrix.y0 = *matrix;
396
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
226 scaled_font = cairo_scaled_font_create((cairo_font_face_t *)face,
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
227 &font_matrix,
395
d30b575a4ad4 Add fontconfig layer
Thinker K.F. Li <thinker@branda.to>
parents: 394
diff changeset
228 &id, opt);
d30b575a4ad4 Add fontconfig layer
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parents: 394
diff changeset
229
396
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
230 return (mb_scaled_font_t *)scaled_font;
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
231 }
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
232
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
233 static
397
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
234 void scaled_font_free(mb_scaled_font_t *scaled_font) {
396
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
235 cairo_scaled_font_destroy((cairo_scaled_font_t *)scaled_font);
395
d30b575a4ad4 Add fontconfig layer
Thinker K.F. Li <thinker@branda.to>
parents: 394
diff changeset
236 }
d30b575a4ad4 Add fontconfig layer
Thinker K.F. Li <thinker@branda.to>
parents: 394
diff changeset
237
d30b575a4ad4 Add fontconfig layer
Thinker K.F. Li <thinker@branda.to>
parents: 394
diff changeset
238 static
397
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
239 void compute_text_extents(mb_scaled_font_t *scaled_font, const char *txt,
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
240 mb_text_extents_t *extents) {
396
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
241 cairo_scaled_font_text_extents((cairo_scaled_font_t *)scaled_font,
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
242 txt,
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
243 (cairo_text_extents_t *)extents);
395
d30b575a4ad4 Add fontconfig layer
Thinker K.F. Li <thinker@branda.to>
parents: 394
diff changeset
244 }
d30b575a4ad4 Add fontconfig layer
Thinker K.F. Li <thinker@branda.to>
parents: 394
diff changeset
245
396
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
246 static
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
247 mb_text_extents_t *mb_text_extents_new(void) {
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
248 cairo_text_extents_t *extents;
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
249
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
250 extents = (cairo_text_extents_t *)malloc(sizeof(cairo_text_extents_t));
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
251 return extents;
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
252 }
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
253
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
254 static
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
255 void mb_text_extents_free(mb_text_extents_t *extents) {
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
256 free(extents);
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
257 }
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
258
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
259 /* @} */
395
d30b575a4ad4 Add fontconfig layer
Thinker K.F. Li <thinker@branda.to>
parents: 394
diff changeset
260
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
261 /*! \brief Query and return a font face for a specified attribute vector.
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
262 *
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
263 * Programmers use mb_font_face_t to specify fonts used to show a
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
264 * block of text on the output device. They can get mb_font_face_t with
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
265 * this function. The objects return by mb_font_face_query() should be
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
266 * freed with mb_font_face_free() when they are not more used.
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
267 *
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
268 * \param family is the name of a font family (times).
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
269 * \param slant is one of \ref MB_FONT_SLANTS.
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
270 * \param weight decides if a font is thin or heavy.
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
271 */
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
272 mb_font_face_t *mb_font_face_query(redraw_man_t *rdman,
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
273 const char *family,
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
274 int slant,
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
275 int weight) {
396
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
276 return query_font_face(family, slant, weight);
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
277 }
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
278
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
279 void mb_font_face_free(mb_font_face_t *face) {
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
280 ASSERT(face != NULL);
396
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
281 free_font_face(face);
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
282 }
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
283
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
284 /*! \brief A simple implementation of text shape.
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Thinker K.F. Li <thinker@branda.to>
parents:
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285 *
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
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286 */
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
287 typedef struct _sh_stext {
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
288 shape_t shape;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
289 const char *txt; /*!< \brief Text to be showed */
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
290 const mb_style_blk_t *style_blks; /*!< \brief Style of text */
417
abc420282c70 Add more doc on shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 415
diff changeset
291 int nblks; /*!< \brief Number of valid style
abc420282c70 Add more doc on shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 415
diff changeset
292 * blocks */
abc420282c70 Add more doc on shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 415
diff changeset
293 int max_nblks; /*!< \brief Available space of
abc420282c70 Add more doc on shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 415
diff changeset
294 * style_blks */
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
295 co_aix x, y;
396
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer
Thinker K.F. Li <thinker@branda.to>
parents: 395
diff changeset
296 mb_scaled_font_t **scaled_fonts;
419
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
297 int nscaled;
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
298 int maxscaled;
403
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
299 mb_text_extents_t extents;
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
300 } sh_stext_t;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
301
419
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
302 static
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
303 void _rdman_shape_stext_free(shape_t *shape) {
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
304 sh_stext_t *txt_o = (sh_stext_t *)shape;
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
305 int i;
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
306
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
307 if(txt_o->style_blks)
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
308 free((void *)txt_o->style_blks);
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
309 if(txt_o->scaled_fonts) {
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
310 for(i = 0; i < txt_o->nscaled; i++)
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
311 scaled_font_free(txt_o->scaled_fonts[i]);
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
312 free(txt_o->scaled_fonts);
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
313 }
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
314 if(txt_o->txt)
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
315 free((void *)txt_o->txt);
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
316
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
317 free(txt_o);
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
318 }
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
319
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
320 shape_t *rdman_shape_stext_new(redraw_man_t *rdman, co_aix x, co_aix y,
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
321 const char *txt) {
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
322 sh_stext_t *txt_o;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
323
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
324 ASSERT(txt != NULL);
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
325
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
326 txt_o = (sh_stext_t *)malloc(sizeof(sh_stext_t));
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
327 if(txt_o == NULL)
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
328 return NULL;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
329
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
330 memset(&txt_o->shape, 0, sizeof(shape_t));
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
331 mb_obj_init(txt_o, MBO_STEXT);
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
332
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
333 txt_o->txt = strdup(txt);
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
334 txt_o->style_blks = NULL;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
335 txt_o->nblks = 0;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
336 txt_o->max_nblks = 0;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
337 txt_o->x = x;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
338 txt_o->y = y;
410
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
339 txt_o->scaled_fonts = NULL;
419
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
340 txt_o->nscaled = 0;
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
341 txt_o->maxscaled = 0;
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
342
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
343 if(txt_o->txt == NULL) {
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
344 free(txt_o);
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
345 txt_o = NULL;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
346 }
419
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
347
7c921fda21be Set free function for sh_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 418
diff changeset
348 txt_o->shape.free = _rdman_shape_stext_free;
418
af6adacbed07 Make sh_stext object managed by rdman.
Thinker K.F. Li <thinker@branda.to>
parents: 417
diff changeset
349
af6adacbed07 Make sh_stext object managed by rdman.
Thinker K.F. Li <thinker@branda.to>
parents: 417
diff changeset
350 rdman_shape_man(rdman, (shape_t *)txt_o);
af6adacbed07 Make sh_stext object managed by rdman.
Thinker K.F. Li <thinker@branda.to>
parents: 417
diff changeset
351
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
352 return (shape_t *)txt_o;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
353 }
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
354
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
355 static
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
356 int compute_utf8_chars_sz(const char *txt, int n_chars) {
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
357 int i;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
358 const char *p = txt;
415
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
359 const char *v;
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
360
410
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
361 for(i = 0; i < n_chars && *p; i++) {
415
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
362 if(!(*p & 0x80)) /* single byte */
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
363 p++;
415
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
364 else if((*p & 0xe0) == 0xc0) /* 2 bytes */
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
365 p += 2;
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
366 else if((*p & 0xf0) == 0xe0) /* 3 bytes */
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
367 p += 3;
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
368 else if((*p & 0xf8) == 0xf0) /* 4 bytes */
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
369 p += 4;
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
370 else
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
371 return ERR;
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
372 }
410
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
373 if(i < n_chars)
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
374 return ERR;
415
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
375
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
376 for(v = txt; v != p; v++)
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
377 if(*v == '\x0')
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
378 return ERR;
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
379
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
380 return p - txt;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
381 }
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
382
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
383 static
397
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
384 mb_scaled_font_t *make_scaled_font_face(sh_stext_t *txt_o,
410
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
385 mb_font_face_t *face,
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
386 co_aix shift_x, co_aix shift_y,
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
387 co_aix font_sz) {
397
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
388 co_aix matrix[6], scaled_matrix[6];
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
389 co_aix *aggr;
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
390 mb_scaled_font_t *scaled;
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
391
397
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
392 aggr = sh_get_aggr_matrix((shape_t *)txt_o);
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
393 matrix[0] = font_sz;
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
394 matrix[1] = 0;
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
395 matrix[2] = shift_x;
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
396 matrix[3] = 0;
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
397 matrix[4] = font_sz;
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
398 matrix[5] += shift_y;
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
399 matrix_mul(aggr, matrix, scaled_matrix);
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
400
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
401 scaled = make_scaled_font_face_matrix(face, scaled_matrix);
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
402
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
403 return scaled;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
404 }
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
405
403
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
406 /*! \brief Extend an extents from another sub-extents.
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
407 *
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
408 * A styled text is styled by several styled blocks, so extents of
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
409 * blocks should be computed separated, collected, and aggreagated
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
410 * into a full extents.
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
411 */
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
412 static
403
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
413 void extent_extents(mb_text_extents_t *full, mb_text_extents_t *sub) {
407
92a459a1c5aa more comment
Thinker K.F. Li <thinker@branda.to>
parents: 403
diff changeset
414 co_aix f_rbx, f_rby; /* rb stands for right button */
403
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
415 co_aix s_rbx, s_rby;
414
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
416 co_aix s_xbr, s_ybr;
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
417 co_aix new_x_adv, new_y_adv;
403
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
418
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
419 f_rbx = MBE_GET_X_BEARING(full) + MBE_GET_WIDTH(full);
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
420 f_rby = MBE_GET_Y_BEARING(full) + MBE_GET_HEIGHT(full);
414
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
421 s_xbr = MBE_GET_X_BEARING(sub) + MBE_GET_X_ADV(full);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
422 s_ybr = MBE_GET_Y_BEARING(sub) + MBE_GET_Y_ADV(full);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
423 s_rbx = s_xbr + MBE_GET_WIDTH(sub);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
424 s_rby = s_ybr + MBE_GET_HEIGHT(sub);
403
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
425
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
426 /* set bearing */
414
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
427 if(MBE_GET_X_BEARING(full) > s_xbr)
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
428 MBE_SET_X_BEARING(full, s_xbr);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
429 if(MBE_GET_Y_BEARING(full) > s_ybr)
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
430 MBE_SET_Y_BEARING(full, s_ybr);
403
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
431
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
432 /* set width/height */
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
433 if(f_rbx < s_rbx)
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
434 MBE_SET_WIDTH(full, s_rbx - MBE_GET_X_BEARING(full));
414
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
435 else
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
436 MBE_SET_WIDTH(full, f_rbx - MBE_GET_X_BEARING(full));
403
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
437 if(f_rby < s_rby)
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
438 MBE_SET_HEIGHT(full, s_rby - MBE_GET_Y_BEARING(full));
414
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
439 else
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
440 MBE_SET_HEIGHT(full, f_rby - MBE_GET_Y_BEARING(full));
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
441
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
442 /* set x/y advance */
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
443 new_x_adv = MBE_GET_X_ADV(full) + MBE_GET_X_ADV(sub);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
444 new_y_adv = MBE_GET_Y_ADV(full) + MBE_GET_Y_ADV(sub);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
445 MBE_SET_X_ADV(full, new_x_adv);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
446 MBE_SET_Y_ADV(full, new_y_adv);
403
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
447 }
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
448
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
449 /*! \brief Compute extents of a stext object according style blocks.
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
450 *
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
451 * It create scaled fonts for style blocks, compute their extents,
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
452 * and compute where they should be draw acoording advance of style
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
453 * blocks before a style block.
421
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
454 *
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
455 * The scaled font that is created by this function for style blocks
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
456 * are drawed at origin. So, extents of these blocks are also based
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
457 * on that the text are drawed at origin of user space. But,
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
458 * aggreagated extents (sh_stext_t::extents) accounts x/y advances
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
459 * to create correct extents for full text string with style blocks.
403
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
460 */
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
461 static
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
462 void compute_styled_extents_n_scaled_font(sh_stext_t *txt_o) {
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
463 mb_text_extents_t sub_extents;
410
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
464 const mb_style_blk_t *blk;
397
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
465 int blk_txt_len;
410
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
466 mb_scaled_font_t **scaled_font;
397
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
467 char *txt, saved;
421
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
468 int i, nscaled;
397
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
469
410
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
470 memset(&txt_o->extents, sizeof(mb_text_extents_t), 0);
397
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
471
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
472 blk = txt_o->style_blks;
421
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
473
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
474 scaled_font = txt_o->scaled_fonts;
421
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
475 nscaled = txt_o->nscaled;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
476 for(i = 0; i < nscaled; i++) {
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
477 scaled_font_free(*scaled_font);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
478 scaled_font++;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
479 }
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
480 txt_o->nscaled = 0;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
481
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
482 if(txt_o->maxscaled >= txt_o->nblks)
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
483 scaled_font = txt_o->scaled_fonts;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
484 else {
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
485 scaled_font = (mb_scaled_font_t **)
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
486 realloc(txt_o->scaled_fonts,
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
487 txt_o->nblks * sizeof(mb_scaled_font_t *));
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
488 ASSERT(scaled_font != NULL);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
489
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
490 txt_o->maxscaled = txt_o->nblks;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
491 txt_o->scaled_fonts = scaled_font;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
492 }
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
493
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
494 txt = (char *)txt_o->txt;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
495 for(i = 0; i < txt_o->nblks; i++) {
397
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
496 *scaled_font = make_scaled_font_face(txt_o, blk->face,
421
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
497 0, 0, blk->font_sz);
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
498 ASSERT(*scaled_font != NULL);
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
499
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
500 blk_txt_len = compute_utf8_chars_sz(txt, blk->n_chars);
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
501 ASSERT(blk_txt_len != ERR);
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
502
397
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
503 saved = txt[blk_txt_len];
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
504 txt[blk_txt_len] = 0;
410
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
505 compute_text_extents(*scaled_font, txt, &sub_extents);
397
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
506 txt[blk_txt_len] = saved;
55f38c2cdb8f Refactor function of computing text extents
Thinker K.F. Li <thinker@branda.to>
parents: 396
diff changeset
507
410
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
508 extent_extents(&txt_o->extents, &sub_extents);
403
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
509
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
510 scaled_font++;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
511 blk++;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
512 txt += blk_txt_len;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
513 }
421
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
514
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
515 txt_o->nscaled = txt_o->nblks;
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
516 }
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
517
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
518 /*
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
519 * What we have to do in sh_stext_transform() is
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
520 * - computing bounding box for the text,
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
521 * - computing offset x,y for the text of style blocks,
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
522 * - free old scaled fonts, and
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
523 * - making scaled fonts for style blocks.
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
524 */
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
525 void sh_stext_transform(shape_t *shape) {
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
526 sh_stext_t *txt_o = (sh_stext_t *)shape;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
527
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
528 ASSERT(txt_o != NULL);
403
aee0f66b1154 Compute extents of a styled text
Thinker K.F. Li <thinker@branda.to>
parents: 397
diff changeset
529 compute_styled_extents_n_scaled_font(txt_o);
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
530 }
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
531
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
532 void sh_stext_draw(shape_t *shape, cairo_t *cr) {
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
533 sh_stext_t *txt_o = (sh_stext_t *)shape;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
534
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
535 ASSERT(txt_o != NULL);
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
536 }
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
537
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
538 int sh_stext_set_text(shape_t *shape, const char *txt) {
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
539 sh_stext_t *txt_o = (sh_stext_t *)shape;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
540 char *new_txt;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
541 int sz;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
542
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
543 ASSERT(txt_o != NULL);
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
544 ASSERT(txt != NULL);
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
545
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
546 sz = strlen(txt) + 1;
410
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
547 new_txt = (char *)realloc((void *)txt_o->txt, sz);
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
548 if(new_txt == NULL)
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
549 return ERR;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
550
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
551 memcpy(new_txt, txt, sz);
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
552 txt_o->txt = new_txt;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
553
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
554 return OK;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
555 }
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
556
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
557 int sh_stext_set_style(shape_t *shape,
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
558 const mb_style_blk_t *blks,
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
559 int nblks) {
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
560 sh_stext_t *txt_o = (sh_stext_t *)shape;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
561 mb_style_blk_t *new_blks;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
562 int sz;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
563
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
564 ASSERT(txt_o != NULL);
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
565 ASSERT(nblks >= 0);
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
566
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
567 if(nblks > txt_o->max_nblks) {
410
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
568 sz = nblks * sizeof(mb_style_blk_t);
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
569 new_blks = (mb_style_blk_t *)realloc((void *)txt_o->style_blks, sz);
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
570 if(new_blks == NULL)
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
571 return ERR;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
572
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
573 txt_o->style_blks = new_blks;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
574 txt_o->max_nblks = nblks;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
575 }
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
576
421
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
577 memcpy((mb_style_blk_t *)txt_o->style_blks,
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
578 blks, nblks * sizeof(mb_style_blk_t));
393
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
579 txt_o->nblks = nblks;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
580
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
581 return OK;
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
582 }
27774b93521e Add sh_stext_t to implement a simple version of text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
583
410
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
584 #ifdef UNITTEST
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
585
412
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
586 #include <CUnit/Basic.h>
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
587
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
588 static
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
589 void test_query_font_face(void) {
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
590 mb_font_face_t *face;
413
35712e4bad0e Make shape_stext.c pass test cases.
Thinker K.F. Li <thinker@branda.to>
parents: 412
diff changeset
591 cairo_status_t status;
412
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
592
413
35712e4bad0e Make shape_stext.c pass test cases.
Thinker K.F. Li <thinker@branda.to>
parents: 412
diff changeset
593 face = query_font_face("serif", MB_FONT_SLANT_ROMAN, 100);
412
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
594 CU_ASSERT(face != NULL);
421
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
595 status = cairo_font_face_status((cairo_font_face_t *)face);
413
35712e4bad0e Make shape_stext.c pass test cases.
Thinker K.F. Li <thinker@branda.to>
parents: 412
diff changeset
596 CU_ASSERT(status == CAIRO_STATUS_SUCCESS);
35712e4bad0e Make shape_stext.c pass test cases.
Thinker K.F. Li <thinker@branda.to>
parents: 412
diff changeset
597
35712e4bad0e Make shape_stext.c pass test cases.
Thinker K.F. Li <thinker@branda.to>
parents: 412
diff changeset
598 free_font_face(face);
412
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
599 }
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
600
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
601 static
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
602 void test_make_scaled_font_face_matrix(void) {
413
35712e4bad0e Make shape_stext.c pass test cases.
Thinker K.F. Li <thinker@branda.to>
parents: 412
diff changeset
603 co_aix matrix[6] = {5, 0, 0, 0, 5, 0};
412
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
604 mb_font_face_t *face;
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
605 mb_scaled_font_t *scaled;
413
35712e4bad0e Make shape_stext.c pass test cases.
Thinker K.F. Li <thinker@branda.to>
parents: 412
diff changeset
606 cairo_status_t status;
412
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
607
413
35712e4bad0e Make shape_stext.c pass test cases.
Thinker K.F. Li <thinker@branda.to>
parents: 412
diff changeset
608 face = query_font_face("serif", MB_FONT_SLANT_ROMAN, 100);
35712e4bad0e Make shape_stext.c pass test cases.
Thinker K.F. Li <thinker@branda.to>
parents: 412
diff changeset
609 CU_ASSERT(face != NULL);
421
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
610 status = cairo_font_face_status((cairo_font_face_t *)face);
413
35712e4bad0e Make shape_stext.c pass test cases.
Thinker K.F. Li <thinker@branda.to>
parents: 412
diff changeset
611 CU_ASSERT(status == CAIRO_STATUS_SUCCESS);
35712e4bad0e Make shape_stext.c pass test cases.
Thinker K.F. Li <thinker@branda.to>
parents: 412
diff changeset
612
412
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
613 scaled = make_scaled_font_face_matrix(face, matrix);
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
614 CU_ASSERT(scaled != NULL);
420
485c563514f4 Casting pointer to cease warning messages.
Thinker K.F. Li <thinker@branda.to>
parents: 419
diff changeset
615 status = cairo_scaled_font_status((cairo_scaled_font_t *)scaled);
413
35712e4bad0e Make shape_stext.c pass test cases.
Thinker K.F. Li <thinker@branda.to>
parents: 412
diff changeset
616 CU_ASSERT(status == CAIRO_STATUS_SUCCESS);
35712e4bad0e Make shape_stext.c pass test cases.
Thinker K.F. Li <thinker@branda.to>
parents: 412
diff changeset
617
412
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
618 scaled_font_free(scaled);
413
35712e4bad0e Make shape_stext.c pass test cases.
Thinker K.F. Li <thinker@branda.to>
parents: 412
diff changeset
619 free_font_face(face);
412
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
620 }
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
621
410
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
622 static
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
623 void test_compute_text_extents(void) {
413
35712e4bad0e Make shape_stext.c pass test cases.
Thinker K.F. Li <thinker@branda.to>
parents: 412
diff changeset
624 co_aix matrix[6] = {10, 0, 0, 0, 10, 0};
412
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
625 mb_font_face_t *face;
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
626 mb_scaled_font_t *scaled;
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
627 mb_text_extents_t ext;
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
628
413
35712e4bad0e Make shape_stext.c pass test cases.
Thinker K.F. Li <thinker@branda.to>
parents: 412
diff changeset
629 face = query_font_face("serif", MB_FONT_SLANT_ROMAN, 100);
35712e4bad0e Make shape_stext.c pass test cases.
Thinker K.F. Li <thinker@branda.to>
parents: 412
diff changeset
630 CU_ASSERT(face != NULL)
412
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
631 scaled = make_scaled_font_face_matrix(face, matrix);
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
632 CU_ASSERT(scaled != NULL);
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
633
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
634 compute_text_extents(scaled, "test", &ext);
414
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
635 CU_ASSERT(MBE_GET_HEIGHT(&ext) >= 5 && MBE_GET_HEIGHT(&ext) <= 12);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
636 CU_ASSERT(MBE_GET_WIDTH(&ext) >= 16 && MBE_GET_WIDTH(&ext) <= 48);
412
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
637
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
638 scaled_font_free(scaled);
413
35712e4bad0e Make shape_stext.c pass test cases.
Thinker K.F. Li <thinker@branda.to>
parents: 412
diff changeset
639 free_font_face(face);
410
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
640 }
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
641
414
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
642 static
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
643 void test_extent_extents(void) {
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
644 mb_text_extents_t ext1, ext2;
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
645
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
646 MBE_SET_WIDTH(&ext1, 20);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
647 MBE_SET_HEIGHT(&ext1, 10);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
648 MBE_SET_X_BEARING(&ext1, 1);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
649 MBE_SET_Y_BEARING(&ext1, -8);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
650 MBE_SET_X_ADV(&ext1, 21);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
651 MBE_SET_Y_ADV(&ext1, -3);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
652
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
653 MBE_SET_WIDTH(&ext2, 30);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
654 MBE_SET_HEIGHT(&ext2, 11);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
655 MBE_SET_X_BEARING(&ext2, 2);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
656 MBE_SET_Y_BEARING(&ext2, -11);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
657 MBE_SET_X_ADV(&ext2, 32);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
658 MBE_SET_Y_ADV(&ext2, -5);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
659
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
660 extent_extents(&ext1, &ext2);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
661
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
662 CU_ASSERT(MBE_GET_WIDTH(&ext1) == 52);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
663 CU_ASSERT(MBE_GET_HEIGHT(&ext1) == 16);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
664 CU_ASSERT(MBE_GET_X_BEARING(&ext1) == 1);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
665 CU_ASSERT(MBE_GET_Y_BEARING(&ext1) == -14);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
666 CU_ASSERT(MBE_GET_X_ADV(&ext1) == 53);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
667 CU_ASSERT(MBE_GET_Y_ADV(&ext1) == -8);
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
668 }
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
669
415
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
670 static
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
671 void test_compute_utf8_chars_sz(void) {
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
672 const char *str = "\xe4\xb8\xad\xe6\x96\x87test\xe6\xb8\xac\xe8\xa9\xa6";
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
673 int sz;
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
674
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
675 sz = compute_utf8_chars_sz(str, 4);
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
676 CU_ASSERT(sz == 8);
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
677
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
678 sz = compute_utf8_chars_sz(str, 9);
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
679 CU_ASSERT(sz == ERR);
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
680 }
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
681
421
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
682 static
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
683 void test_compute_styled_extents_n_scaled_font(void) {
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
684 sh_stext_t *txt_o;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
685 co_aix *aggr;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
686 mb_style_blk_t blks[2];
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
687 mb_font_face_t *face;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
688 mb_text_extents_t *ext;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
689 int r;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
690
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
691 txt_o = (sh_stext_t *)rdman_shape_stext_new((redraw_man_t *)NULL,
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
692 10, 15, "Hello World");
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
693 CU_ASSERT(txt_o != NULL);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
694
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
695 aggr = txt_o->shape.aggr;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
696 aggr[0] = 1;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
697 aggr[1] = 0;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
698 aggr[2] = 0;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
699 aggr[3] = 0;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
700 aggr[4] = 1;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
701 aggr[5] = 0;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
702
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
703 face = query_font_face("serif", MB_FONT_SLANT_ROMAN, 100);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
704 CU_ASSERT(face != NULL);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
705
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
706 blks[0].n_chars = 5;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
707 blks[0].face = face;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
708 blks[0].font_sz = 10;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
709
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
710 blks[1].n_chars = 4;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
711 blks[1].face = face;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
712 blks[1].font_sz = 15.5;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
713
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
714 r = sh_stext_set_style((shape_t *)txt_o, blks, 2);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
715 CU_ASSERT(r == OK);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
716
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
717 compute_styled_extents_n_scaled_font(txt_o);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
718
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
719 ext = &txt_o->extents;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
720 CU_ASSERT(MBE_GET_HEIGHT(ext) > 11);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
721 CU_ASSERT(MBE_GET_HEIGHT(ext) < 20);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
722 CU_ASSERT(MBE_GET_WIDTH(ext) > 36);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
723 CU_ASSERT(MBE_GET_WIDTH(ext) < 72);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
724 CU_ASSERT(MBE_GET_X_ADV(ext) > 36);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
725 CU_ASSERT(MBE_GET_X_ADV(ext) < 72);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
726 CU_ASSERT(MBE_GET_Y_ADV(ext) == 0);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
727
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
728 _rdman_shape_stext_free((shape_t *)txt_o);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
729 free_font_face(face);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
730 }
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
731
410
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
732 #include <CUnit/Basic.h>
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
733 CU_pSuite get_stext_suite(void) {
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
734 CU_pSuite suite;
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
735
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
736 suite = CU_add_suite("Suite_stext", NULL, NULL);
412
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
737 CU_ADD_TEST(suite, test_query_font_face);
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
738 CU_ADD_TEST(suite, test_make_scaled_font_face_matrix);
a456e267279a Test cases for shape_stext.
Thinker K.F. Li <thinker@branda.to>
parents: 411
diff changeset
739 CU_ADD_TEST(suite, test_compute_text_extents);
414
bbf036c315be Fix extent_extents to make it pass the test case.
Thinker K.F. Li <thinker@branda.to>
parents: 413
diff changeset
740 CU_ADD_TEST(suite, test_extent_extents);
415
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly.
Thinker K.F. Li <thinker@branda.to>
parents: 414
diff changeset
741 CU_ADD_TEST(suite, test_compute_utf8_chars_sz);
421
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test.
Thinker K.F. Li <thinker@branda.to>
parents: 420
diff changeset
742 CU_ADD_TEST(suite, test_compute_styled_extents_n_scaled_font);
410
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
743
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
744 return suite;
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
745 }
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
746
1a923ea699c1 shape_stext.c, now, is unittested.
Thinker K.F. Li <thinker@branda.to>
parents: 407
diff changeset
747 #endif /* UNITTEST */