Mercurial > MadButterfly

annotate src/shape_text.c @ 1508:62001d2c89f6

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Make _FSM_add_state_mode to use _FSM_popup
author Thinker K.F. Li <thinker@codemud.net>
date Mon, 09 May 2011 19:25:38 +0800
parents a8d20bc8ce40
children
rev   line source
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586e50f82c1f Unify coding style tag for emacs and vim.
Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com>
parents: 473
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1 // -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 4; -*-
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2 // vim: sw=4:ts=8:sts=4
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3 #include <stdio.h>
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4 #include <stdlib.h>
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5 #include <string.h>
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6 #include <math.h>
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7 #include "mb_graph_engine.h"
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8 #include <pango/pangocairo.h>
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9 #include "mb_types.h"
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10 #include "mb_shapes.h"
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11
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12 #define ASSERT(x)
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13 #define OK 0
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14 #define ERR -1
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15
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16 typedef struct _sh_text {
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17 shape_t shape;
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18 char *data;
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wycc@122-116-38-188.HINET-IP.hinet.net
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19 co_aix x, y,w,h;
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20 co_aix d_x, d_y; /* device x and y */
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21 co_aix font_size;
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22 co_aix d_font_size;
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23 mbe_font_face_t *face;
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24 mbe_scaled_font_t *scaled_font;
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25 int flags;
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26 PangoLayout *layout;
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27 int align;
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28 PangoAttrList *attrs;
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29 } sh_text_t;
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30
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31 #define TXF_SCALE_DIRTY 0x1
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32
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33 static void sh_text_free(shape_t *shape) {
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34 sh_text_t *text = (sh_text_t *)shape;
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35
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36 if(text->scaled_font)
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37 mbe_scaled_font_destroy(text->scaled_font);
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38 mbe_font_face_destroy(text->face);
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39 }
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40
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41 static void sh_text_P_generate_layout(sh_text_t *text,mbe_t *cr);
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42 shape_t *rdman_shape_text_new(redraw_man_t *rdman,
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43 const char *txt, co_aix x, co_aix y,
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44 co_aix font_size, mbe_font_face_t *face,PangoAttrList *attrs) {
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45 sh_text_t *text;
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46
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47 text = (sh_text_t *)malloc(sizeof(sh_text_t));
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48 if(text == NULL)
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49 return NULL;
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50
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51 memset(text, 0, sizeof(sh_text_t));
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52 mb_obj_init(text, MBO_TEXT);
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53 text->data = strdup(txt);
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54 if(text->data == NULL) {
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55 free(text);
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56 return NULL;
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57 }
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58 text->x = x;
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59 text->y = y;
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60 text->font_size = font_size;
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61 mbe_font_face_reference(face);
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62 text->face = face;
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63 text->flags |= TXF_SCALE_DIRTY;
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64
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65 text->shape.free = sh_text_free;
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66 text->layout = NULL;
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67 text->attrs = attrs;
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68 text->align = TEXTALIGN_START;
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69 text->w = text->h = 0;
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parents: 473
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71 rdman_man_shape(rdman, (shape_t *)text);
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72
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73 return (shape_t *)text;
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74 }
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75
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76 void sh_text_set_pos(shape_t *shape, co_aix x, co_aix y)
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77 {
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78 sh_text_t *text = (sh_text_t *)shape;
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79 text->x = x;
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80 text->y = y;
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81 }
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82
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83
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84 void sh_text_get_pos(shape_t *shape, co_aix *x, co_aix *y)
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85 {
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86 sh_text_t *text = (sh_text_t *)shape;
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87 *x = text->x;
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88 *y = text->y;
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89 }
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90
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91 void sh_text_get_text(shape_t *shape, char *text,int size)
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92 {
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93 sh_text_t *t = (sh_text_t *)shape;
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94 strncpy(text,t->data, size);
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95 }
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96
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97 void sh_text_set_text(shape_t *shape, const char *txt) {
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98 sh_text_t *text = (sh_text_t *)shape;
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99 char *buf;
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100
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101 buf = strdup(txt);
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102 if(text->data) free(text->data);
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103 text->data = buf;
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104 }
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105
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106 void sh_text_set_color(shape_t *shape, unsigned int color)
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107 {
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108 PangoAttribute *attr = pango_attr_foreground_new(TEXTCOLOR_RED(color)<<8,TEXTCOLOR_GREEN(color)<<8,TEXTCOLOR_BLUE(color)<<8);
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109 sh_text_t *text = (sh_text_t *)shape;
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110 attr->start_index = 0;
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111 attr->end_index = -1;
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112 pango_attr_list_change(text->attrs, attr);
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113 }
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114 void sh_text_set_bold(shape_t *shape,int bold)
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115 {
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116 PangoAttribute *attr = pango_attr_weight_new(bold? PANGO_WEIGHT_BOLD:PANGO_WEIGHT_NORMAL);
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117 sh_text_t *text = (sh_text_t *)shape;
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118 attr->start_index = 0;
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119 attr->end_index = -1;
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120 pango_attr_list_change(text->attrs, attr);
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121 }
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122 void sh_text_set_italic(shape_t *shape,int italic)
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123 {
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124 PangoAttribute *attr = pango_attr_style_new(italic? PANGO_STYLE_ITALIC:PANGO_STYLE_NORMAL);
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125 sh_text_t *text = (sh_text_t *)shape;
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126 attr->start_index = 0;
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127 attr->end_index = -1;
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128 pango_attr_list_change(text->attrs, attr);
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129 }
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130 void sh_text_set_underline(shape_t *shape,int underline)
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131 {
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132 PangoAttribute *attr = pango_attr_underline_new(underline? PANGO_UNDERLINE_SINGLE:PANGO_UNDERLINE_NONE);
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133 sh_text_t *text = (sh_text_t *)shape;
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134 attr->start_index = 0;
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135 attr->end_index = -1;
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136 pango_attr_list_change(text->attrs, attr);
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137 }
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138 void sh_text_set_font(shape_t *shape,char *family)
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139 {
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140 PangoAttribute *attr = pango_attr_family_new(family);
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141 sh_text_t *text = (sh_text_t *)shape;
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142 attr->start_index = 0;
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143 attr->end_index = -1;
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144 pango_attr_list_change(text->attrs, attr);
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145 }
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146
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wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
147 void sh_text_set_align(shape_t *shape,int align)
61a0bceb369d Add alignment support for the text layout
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
148 {
61a0bceb369d Add alignment support for the text layout
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
149 sh_text_t *text = (sh_text_t *)shape;
61a0bceb369d Add alignment support for the text layout
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
150 text->align = align;
61a0bceb369d Add alignment support for the text layout
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
151 }
61a0bceb369d Add alignment support for the text layout
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
152 void sh_text_set_width(shape_t *shape,int width)
61a0bceb369d Add alignment support for the text layout
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
153 {
61a0bceb369d Add alignment support for the text layout
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
154 sh_text_t *text = (sh_text_t *)shape;
61a0bceb369d Add alignment support for the text layout
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
155 text->w = width;
61a0bceb369d Add alignment support for the text layout
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
156 }
291
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
157 void sh_text_set_style(shape_t *shape,int begin,int end,mb_textstyle_t *format)
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
158 {
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
159 PangoAttribute *attr;
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
160 sh_text_t *text = (sh_text_t *)shape;
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
161
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
162 if (end == -1) {
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
163 end = strlen(text->data);
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
164 } else
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
165 end++;
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
166 if (format->property & TEXTSTYLE_BOLD) {
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
167 attr = pango_attr_weight_new(PANGO_WEIGHT_BOLD);
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
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diff changeset
168 attr->start_index = begin;
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
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diff changeset
169 attr->end_index = end;
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
170 pango_attr_list_change(text->attrs,attr);
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
171 }
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
172 if (format->property & TEXTSTYLE_ITALIC) {
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
173 attr = pango_attr_style_new(PANGO_STYLE_ITALIC);
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
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diff changeset
174 attr->start_index = begin;
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wycc
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diff changeset
175 attr->end_index = end;
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
176 pango_attr_list_change(text->attrs,attr);
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
177 }
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
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diff changeset
178 if (format->property & TEXTSTYLE_UNDERLINE) {
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wycc
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diff changeset
179 attr = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE);
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180 attr->start_index = begin;
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diff changeset
181 attr->end_index = end;
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wycc
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diff changeset
182 pango_attr_list_change(text->attrs,attr);
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wycc
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diff changeset
183 }
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
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diff changeset
184 if (format->property & TEXTSTYLE_COLOR) {
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wycc
parents: 289
diff changeset
185 printf("color=%x\n", format->color);
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wycc
parents: 289
diff changeset
186 printf("red = %x\n",TEXTCOLOR_RED(format->color));
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diff changeset
187 printf("green = %x\n",TEXTCOLOR_GREEN(format->color));
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188 printf("blue = %x\n",TEXTCOLOR_BLUE(format->color));
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wycc
parents: 289
diff changeset
189 attr = pango_attr_foreground_new(TEXTCOLOR_RED(format->color)<<8,TEXTCOLOR_GREEN(format->color)<<8,TEXTCOLOR_BLUE(format->color)<<8);
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
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diff changeset
190 attr->start_index = begin;
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
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diff changeset
191 attr->end_index = end;
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
192 pango_attr_list_change(text->attrs,attr);
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wycc
parents: 289
diff changeset
193 }
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
194 if (format->property & TEXTSTYLE_FONT) {
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
195 attr = pango_attr_family_new(format->font);
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
196 attr->start_index = begin;
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
197 attr->end_index = end;
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
198 pango_attr_list_change(text->attrs,attr);
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
199 }
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
200 if (format->property & TEXTSTYLE_ALIGN) {
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
201 // We can have one align style for the whole text only
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
202 if (begin != 0 || (end != strlen(text->data)-1))
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
203 return;
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
204 text->align = format->align;
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
205 }
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
206 }
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
207
279
86a5ae82ccf2 * Modify svg2code_ex to use differnt font size at two test items to illustrate the function of the new text parser
wycc
parents: 278
diff changeset
208 static int get_extents(sh_text_t *text, PangoRectangle *extents) {
448
16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine.
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
209 mbe_scaled_font_t *new_scaled;
27
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
210
279
86a5ae82ccf2 * Modify svg2code_ex to use differnt font size at two test items to illustrate the function of the new text parser
wycc
parents: 278
diff changeset
211 pango_layout_get_extents(text->layout, NULL, extents);
86a5ae82ccf2 * Modify svg2code_ex to use differnt font size at two test items to illustrate the function of the new text parser
wycc
parents: 278
diff changeset
212 pango_extents_to_pixels(extents,NULL);
27
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
213 return OK;
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
214 }
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
215
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
216 void sh_text_transform(shape_t *shape) {
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parents:
diff changeset
217 sh_text_t *text;
346
b391722bf20e sh_image_t::img_data is managed by paint_image_t.
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parents: 330
diff changeset
218 coord_t *coord;
b391722bf20e sh_image_t::img_data is managed by paint_image_t.
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parents: 330
diff changeset
219 canvas_t *canvas;
27
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
220 co_aix x, y;
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parents:
diff changeset
221 co_aix shw;
279
86a5ae82ccf2 * Modify svg2code_ex to use differnt font size at two test items to illustrate the function of the new text parser
wycc
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diff changeset
222 PangoRectangle extents;
27
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
223 co_aix poses[2][2];
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
224 int r;
19c603dd6ff9 Add text shape.
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parents:
diff changeset
225
19c603dd6ff9 Add text shape.
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parents:
diff changeset
226 text = (sh_text_t *)shape;
822
586e50f82c1f Unify coding style tag for emacs and vim.
Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com>
parents: 473
diff changeset
227
31
da770188a44d resize font size for changige of coord.
Thinker K.F. Li <thinker@branda.to>
parents: 30
diff changeset
228 text->d_font_size = coord_trans_size(shape->coord, text->font_size);
822
586e50f82c1f Unify coding style tag for emacs and vim.
Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com>
parents: 473
diff changeset
229
346
b391722bf20e sh_image_t::img_data is managed by paint_image_t.
Thinker K.F. Li <thinker@branda.to>
parents: 330
diff changeset
230 coord = sh_get_coord(shape);
b391722bf20e sh_image_t::img_data is managed by paint_image_t.
Thinker K.F. Li <thinker@branda.to>
parents: 330
diff changeset
231 canvas = _coord_get_canvas(coord);
448
16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine.
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
232 sh_text_P_generate_layout(text, (mbe_t *)canvas);
31
da770188a44d resize font size for changige of coord.
Thinker K.F. Li <thinker@branda.to>
parents: 30
diff changeset
233
27
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
234 x = text->x;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
235 y = text->y;
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Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
236 coord_trans_pos(shape->coord, &x, &y);
19c603dd6ff9 Add text shape.
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parents:
diff changeset
237 r = get_extents(text, &extents);
279
86a5ae82ccf2 * Modify svg2code_ex to use differnt font size at two test items to illustrate the function of the new text parser
wycc
parents: 278
diff changeset
238
280
c8b6ca46950b Add merged result
wycc
parents: 279
diff changeset
239 //printf("x=%f y=%f text=%s ascent=%d,descent=%d,width=%d height=%d\n", x,y,text->data,PANGO_ASCENT(extents), PANGO_DESCENT(extents), extents.width, extents.height);
104
Thinker K.F. Li <thinker@branda.to>
parents: 88
diff changeset
240 ASSERT(r == OK);
27
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
241
285
248a40d51473 Check in test program for sh_text_set_text for debugging. It is not working yet.
wycc
parents: 280
diff changeset
242 text->d_x = x-5;
248a40d51473 Check in test program for sh_text_set_text for debugging. It is not working yet.
wycc
parents: 280
diff changeset
243 text->d_y = y-PANGO_DESCENT(extents)+5;
27
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
244 shw = shape->stroke_width / 2;
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
245 /* FIXME: It is unreasonable that a font exceed it's bbox.
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
246 * We add 5 pixels in get right bbox. But, it is unreasonable.
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
247 */
279
86a5ae82ccf2 * Modify svg2code_ex to use differnt font size at two test items to illustrate the function of the new text parser
wycc
parents: 278
diff changeset
248
289
13ce87b6dbf5 Fix bug of sh_text_t that do not update it-self after changes.
Thinker K.F. Li <thinker@branda.to>
parents: 285
diff changeset
249 poses[0][0] = text->d_x + extents.x - shw;
13ce87b6dbf5 Fix bug of sh_text_t that do not update it-self after changes.
Thinker K.F. Li <thinker@branda.to>
parents: 285
diff changeset
250 poses[0][1] = text->d_y + extents.y - shw;
285
248a40d51473 Check in test program for sh_text_set_text for debugging. It is not working yet.
wycc
parents: 280
diff changeset
251 poses[1][0] = poses[0][0] + extents.width + shape->stroke_width;
248a40d51473 Check in test program for sh_text_set_text for debugging. It is not working yet.
wycc
parents: 280
diff changeset
252 poses[1][1] = poses[0][1] + extents.height + shape->stroke_width;
27
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
253 geo_from_positions(shape->geo, 2, poses);
104
Thinker K.F. Li <thinker@branda.to>
parents: 88
diff changeset
254 /*! \todo Support ratation for shape_text. */
27
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
255 }
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
256
448
16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine.
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
257 static void sh_text_P_generate_layout(sh_text_t *text,mbe_t *cr)
278
a90fd749af82 Implement the whole tspan attribute. Currently, we can accept font family/font style/font weight and font size.
wycc
parents: 224
diff changeset
258 {
a90fd749af82 Implement the whole tspan attribute. Currently, we can accept font family/font style/font weight and font size.
wycc
parents: 224
diff changeset
259 PangoAttribute *attr;
a90fd749af82 Implement the whole tspan attribute. Currently, we can accept font family/font style/font weight and font size.
wycc
parents: 224
diff changeset
260 PangoAttrList *attrlist;
a90fd749af82 Implement the whole tspan attribute. Currently, we can accept font family/font style/font weight and font size.
wycc
parents: 224
diff changeset
261 PangoFontDescription *desc;
27
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
262
278
a90fd749af82 Implement the whole tspan attribute. Currently, we can accept font family/font style/font weight and font size.
wycc
parents: 224
diff changeset
263 if (text->layout) {
a90fd749af82 Implement the whole tspan attribute. Currently, we can accept font family/font style/font weight and font size.
wycc
parents: 224
diff changeset
264 g_object_unref(text->layout);
a90fd749af82 Implement the whole tspan attribute. Currently, we can accept font family/font style/font weight and font size.
wycc
parents: 224
diff changeset
265 }
a90fd749af82 Implement the whole tspan attribute. Currently, we can accept font family/font style/font weight and font size.
wycc
parents: 224
diff changeset
266 text->layout = pango_cairo_create_layout(cr);
a90fd749af82 Implement the whole tspan attribute. Currently, we can accept font family/font style/font weight and font size.
wycc
parents: 224
diff changeset
267 desc = pango_font_description_from_string("Sans Bold");
448
16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine.
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
268 //mbe_set_source_rgb (cr, 0, 0, 0);
278
a90fd749af82 Implement the whole tspan attribute. Currently, we can accept font family/font style/font weight and font size.
wycc
parents: 224
diff changeset
269 pango_layout_set_font_description (text->layout, desc);
461
61a0bceb369d Add alignment support for the text layout
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
270 if (text->w != 0)
61a0bceb369d Add alignment support for the text layout
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
271 pango_layout_set_width(text->layout, text->w);
279
86a5ae82ccf2 * Modify svg2code_ex to use differnt font size at two test items to illustrate the function of the new text parser
wycc
parents: 278
diff changeset
272 pango_layout_set_text(text->layout,text->data,strlen(text->data));
278
a90fd749af82 Implement the whole tspan attribute. Currently, we can accept font family/font style/font weight and font size.
wycc
parents: 224
diff changeset
273 pango_layout_set_attributes(text->layout, text->attrs);
461
61a0bceb369d Add alignment support for the text layout
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
274 if (text->align == TEXTALIGN_START)
61a0bceb369d Add alignment support for the text layout
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
275 pango_layout_set_alignment(text->layout, PANGO_ALIGN_LEFT);
61a0bceb369d Add alignment support for the text layout
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
276 else if (text->align == TEXTALIGN_MIDDLE)
61a0bceb369d Add alignment support for the text layout
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
277 pango_layout_set_alignment(text->layout, PANGO_ALIGN_CENTER);
61a0bceb369d Add alignment support for the text layout
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
278 else if (text->align == TEXTALIGN_END)
61a0bceb369d Add alignment support for the text layout
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
279 pango_layout_set_alignment(text->layout, PANGO_ALIGN_RIGHT);
285
248a40d51473 Check in test program for sh_text_set_text for debugging. It is not working yet.
wycc
parents: 280
diff changeset
280 pango_cairo_update_layout(cr,text->layout);
461
61a0bceb369d Add alignment support for the text layout
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
281 //printf("text=%s\n",text->data);
278
a90fd749af82 Implement the whole tspan attribute. Currently, we can accept font family/font style/font weight and font size.
wycc
parents: 224
diff changeset
282 }
448
16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine.
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
283 static void draw_text(sh_text_t *text, mbe_t *cr) {
16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine.
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
284 mbe_move_to(cr, text->d_x, text->d_y);
330
b0571f10c1b8 Use pango_cairo_layout_path() instead of pango_cairo_show_layout().
Thinker K.F. Li <thinker@branda.to>
parents: 303
diff changeset
285 pango_cairo_layout_path(cr,text->layout);
27
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
286 }
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
287
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
288
448
16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine.
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
289 void sh_text_draw(shape_t *shape, mbe_t *cr) {
30
e06a4a667ce2 Accept mouse/pointer event and hint the shape that the pointer is over.
Thinker K.F. Li <thinker@branda.to>
parents: 27
diff changeset
290 draw_text((sh_text_t *)shape, cr);
e06a4a667ce2 Accept mouse/pointer event and hint the shape that the pointer is over.
Thinker K.F. Li <thinker@branda.to>
parents: 27
diff changeset
291 }
e06a4a667ce2 Accept mouse/pointer event and hint the shape that the pointer is over.
Thinker K.F. Li <thinker@branda.to>
parents: 27
diff changeset
292