Mercurial > MadButterfly

annotate src/shape_text.c @ 1294:082fff7e9604

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
merge
author Thinker K.F. Li <thinker@codemud.net>
date Sat, 15 Jan 2011 23:07:29 +0800
parents a8d20bc8ce40
children
rev   line source
822
586e50f82c1f Unify coding style tag for emacs and vim.
Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com>
parents: 473
diff changeset
1 // -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 4; -*-
586e50f82c1f Unify coding style tag for emacs and vim.
Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com>
parents: 473
diff changeset
2 // vim: sw=4:ts=8:sts=4
27
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
3 #include <stdio.h>
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
4 #include <stdlib.h>
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
5 #include <string.h>
31
da770188a44d resize font size for changige of coord.
Thinker K.F. Li <thinker@branda.to>
parents: 30
diff changeset
6 #include <math.h>
448
16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine.
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
7 #include "mb_graph_engine.h"
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
8 #include <pango/pangocairo.h>
186
530bb7728546 Move header files to $(top_srcdir)/include/ and prefixed with 'mb_'.
Thinker K.F. Li <thinker@branda.to>
parents: 185
diff changeset
9 #include "mb_types.h"
530bb7728546 Move header files to $(top_srcdir)/include/ and prefixed with 'mb_'.
Thinker K.F. Li <thinker@branda.to>
parents: 185
diff changeset
10 #include "mb_shapes.h"
27
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
11
104
Thinker K.F. Li <thinker@branda.to>
parents: 88
diff changeset
12 #define ASSERT(x)
27
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
13 #define OK 0
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
14 #define ERR -1
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
15
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
16 typedef struct _sh_text {
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
17 shape_t shape;
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
18 char *data;
461
61a0bceb369d Add alignment support for the text layout
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
19 co_aix x, y,w,h;
27
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
20 co_aix d_x, d_y; /* device x and y */
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
21 co_aix font_size;
31
da770188a44d resize font size for changige of coord.
Thinker K.F. Li <thinker@branda.to>
parents: 30
diff changeset
22 co_aix d_font_size;
448
16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine.
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
23 mbe_font_face_t *face;
16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine.
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
24 mbe_scaled_font_t *scaled_font;
27
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
25 int flags;
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
26 PangoLayout *layout;
291
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
27 int align;
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
28 PangoAttrList *attrs;
27
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
29 } sh_text_t;
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
30
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
31 #define TXF_SCALE_DIRTY 0x1
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
32
73
9ab15ebc9061 Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents: 58
diff changeset
33 static void sh_text_free(shape_t *shape) {
9ab15ebc9061 Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents: 58
diff changeset
34 sh_text_t *text = (sh_text_t *)shape;
9ab15ebc9061 Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents: 58
diff changeset
35
9ab15ebc9061 Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents: 58
diff changeset
36 if(text->scaled_font)
448
16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine.
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
37 mbe_scaled_font_destroy(text->scaled_font);
16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine.
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
38 mbe_font_face_destroy(text->face);
73
9ab15ebc9061 Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents: 58
diff changeset
39 }
9ab15ebc9061 Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents: 58
diff changeset
40
448
16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine.
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
41 static void sh_text_P_generate_layout(sh_text_t *text,mbe_t *cr);
159
b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty.
Thinker K.F. Li <thinker@branda.to>
parents: 104
diff changeset
42 shape_t *rdman_shape_text_new(redraw_man_t *rdman,
b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty.
Thinker K.F. Li <thinker@branda.to>
parents: 104
diff changeset
43 const char *txt, co_aix x, co_aix y,
448
16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine.
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
44 co_aix font_size, mbe_font_face_t *face,PangoAttrList *attrs) {
27
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
45 sh_text_t *text;
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
46
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
47 text = (sh_text_t *)malloc(sizeof(sh_text_t));
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
48 if(text == NULL)
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
49 return NULL;
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
50
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
51 memset(text, 0, sizeof(sh_text_t));
224
29e1b2bffe4c X backend only sent EVT_MOUSE_MOVE_RAW to MadButterfly.
Thinker K.F. Li <thinker@branda.to>
parents: 196
diff changeset
52 mb_obj_init(text, MBO_TEXT);
27
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
53 text->data = strdup(txt);
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
54 if(text->data == NULL) {
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
55 free(text);
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
56 return NULL;
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
57 }
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
58 text->x = x;
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
59 text->y = y;
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
60 text->font_size = font_size;
448
16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine.
Thinker K.F. Li <thinker@branda.to>
parents: 393
diff changeset
61 mbe_font_face_reference(face);
27
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
62 text->face = face;
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
63 text->flags |= TXF_SCALE_DIRTY;
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
64
73
9ab15ebc9061 Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents: 58
diff changeset
65 text->shape.free = sh_text_free;
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
66 text->layout = NULL;
a90fd749af82 Implement the whole tspan attribute. Currently, we can accept font family/font style/font weight and font size.
wycc
parents: 224
diff changeset
67 text->attrs = attrs;
291
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
68 text->align = TEXTALIGN_START;
461
61a0bceb369d Add alignment support for the text layout
wycc@122-116-38-188.HINET-IP.hinet.net
parents: 448
diff changeset
69 text->w = text->h = 0;
822
586e50f82c1f Unify coding style tag for emacs and vim.
Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com>
parents: 473
diff changeset
70
1062
a8d20bc8ce40 Rename rdman_shape_man() to rdman_man_shape() to mean managing a shape
Thinker K.F. Li <thinker@codemud.net>
parents: 822
diff changeset
71 rdman_man_shape(rdman, (shape_t *)text);
159
b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty.
Thinker K.F. Li <thinker@branda.to>
parents: 104
diff changeset
72
73
9ab15ebc9061 Observer for mouse events
Thinker K.F. Li <thinker@branda.to>
parents: 58
diff changeset
73 return (shape_t *)text;
27
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
74 }
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
75
303
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
76 void sh_text_set_pos(shape_t *shape, co_aix x, co_aix y)
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
77 {
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
78 sh_text_t *text = (sh_text_t *)shape;
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
79 text->x = x;
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
80 text->y = y;
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
81 }
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
82
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
83
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
84 void sh_text_get_pos(shape_t *shape, co_aix *x, co_aix *y)
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
85 {
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
86 sh_text_t *text = (sh_text_t *)shape;
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
87 *x = text->x;
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
88 *y = text->y;
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
89 }
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
90
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
91 void sh_text_get_text(shape_t *shape, char *text,int size)
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
92 {
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
93 sh_text_t *t = (sh_text_t *)shape;
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
94 strncpy(text,t->data, size);
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
95 }
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
96
f894b30676e9 Add MBAF object suport. This is still work in progress yet. However, it won't affect other features. Therefore, it is checked in before it become mature.
wycc
parents: 294
diff changeset
97 void sh_text_set_text(shape_t *shape, const char *txt) {
88
dd813dcc232c New example, calculator.
Thinker K.F. Li <thinker@branda.to>
parents: 73
diff changeset
98 sh_text_t *text = (sh_text_t *)shape;
dd813dcc232c New example, calculator.
Thinker K.F. Li <thinker@branda.to>
parents: 73
diff changeset
99 char *buf;
dd813dcc232c New example, calculator.
Thinker K.F. Li <thinker@branda.to>
parents: 73
diff changeset
100
dd813dcc232c New example, calculator.
Thinker K.F. Li <thinker@branda.to>
parents: 73
diff changeset
101 buf = strdup(txt);
dd813dcc232c New example, calculator.
Thinker K.F. Li <thinker@branda.to>
parents: 73
diff changeset
102 if(text->data) free(text->data);
dd813dcc232c New example, calculator.
Thinker K.F. Li <thinker@branda.to>
parents: 73
diff changeset
103 text->data = buf;
dd813dcc232c New example, calculator.
Thinker K.F. Li <thinker@branda.to>
parents: 73
diff changeset
104 }
dd813dcc232c New example, calculator.
Thinker K.F. Li <thinker@branda.to>
parents: 73
diff changeset
105
292
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
106 void sh_text_set_color(shape_t *shape, unsigned int color)
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
107 {
294
2ca0773cd48d * Add MBAF files
wycc
parents: 292
diff changeset
108 PangoAttribute *attr = pango_attr_foreground_new(TEXTCOLOR_RED(color)<<8,TEXTCOLOR_GREEN(color)<<8,TEXTCOLOR_BLUE(color)<<8);
292
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
109 sh_text_t *text = (sh_text_t *)shape;
294
2ca0773cd48d * Add MBAF files
wycc
parents: 292
diff changeset
110 attr->start_index = 0;
292
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
111 attr->end_index = -1;
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
112 pango_attr_list_change(text->attrs, attr);
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
113 }
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
114 void sh_text_set_bold(shape_t *shape,int bold)
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
115 {
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
116 PangoAttribute *attr = pango_attr_weight_new(bold? PANGO_WEIGHT_BOLD:PANGO_WEIGHT_NORMAL);
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
117 sh_text_t *text = (sh_text_t *)shape;
294
2ca0773cd48d * Add MBAF files
wycc
parents: 292
diff changeset
118 attr->start_index = 0;
292
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
119 attr->end_index = -1;
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
120 pango_attr_list_change(text->attrs, attr);
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
121 }
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
122 void sh_text_set_italic(shape_t *shape,int italic)
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
123 {
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
124 PangoAttribute *attr = pango_attr_style_new(italic? PANGO_STYLE_ITALIC:PANGO_STYLE_NORMAL);
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
125 sh_text_t *text = (sh_text_t *)shape;
294
2ca0773cd48d * Add MBAF files
wycc
parents: 292
diff changeset
126 attr->start_index = 0;
292
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
127 attr->end_index = -1;
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
128 pango_attr_list_change(text->attrs, attr);
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
129 }
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
130 void sh_text_set_underline(shape_t *shape,int underline)
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
131 {
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
132 PangoAttribute *attr = pango_attr_underline_new(underline? PANGO_UNDERLINE_SINGLE:PANGO_UNDERLINE_NONE);
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
133 sh_text_t *text = (sh_text_t *)shape;
294
2ca0773cd48d * Add MBAF files
wycc
parents: 292
diff changeset
134 attr->start_index = 0;
292
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
135 attr->end_index = -1;
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
136 pango_attr_list_change(text->attrs, attr);
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
137 }
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
138 void sh_text_set_font(shape_t *shape,char *family)
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
139 {
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
140 PangoAttribute *attr = pango_attr_family_new(family);
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
141 sh_text_t *text = (sh_text_t *)shape;
294
2ca0773cd48d * Add MBAF files
wycc
parents: 292
diff changeset
142 attr->start_index = 0;
292
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
143 attr->end_index = -1;
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
144 pango_attr_list_change(text->attrs, attr);
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
145 }
7270e368ee98 Add more text API
wycc
parents: 291
diff changeset
146
461
61a0bceb369d Add alignment support for the text layout
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
parents: 289
diff changeset
168 attr->start_index = begin;
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
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
parents: 289
diff changeset
174 attr->start_index = begin;
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
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
parents: 289
diff changeset
178 if (format->property & TEXTSTYLE_UNDERLINE) {
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
179 attr = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE);
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
180 attr->start_index = begin;
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
181 attr->end_index = end;
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
182 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
183 }
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
184 if (format->property & TEXTSTYLE_COLOR) {
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
185 printf("color=%x\n", format->color);
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
186 printf("red = %x\n",TEXTCOLOR_RED(format->color));
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
187 printf("green = %x\n",TEXTCOLOR_GREEN(format->color));
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
diff changeset
188 printf("blue = %x\n",TEXTCOLOR_BLUE(format->color));
137a73822d48 Add sh_text_set_style support to change the style of text element.
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
parents: 289
diff changeset
190 attr->start_index = begin;
137a73822d48 Add sh_text_set_style support to change the style of text element.
wycc
parents: 289
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);
137a73822d48 Add sh_text_set_style support to change the style of text element.
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) {
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
217 sh_text_t *text;
346
b391722bf20e sh_image_t::img_data is managed by paint_image_t.
Thinker K.F. Li <thinker@branda.to>
parents: 330
diff changeset
218 coord_t *coord;
b391722bf20e sh_image_t::img_data is managed by paint_image_t.
Thinker K.F. Li <thinker@branda.to>
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;
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
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
parents: 278
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];
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
224 int r;
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
225
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
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;
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
235 y = text->y;
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
236 coord_trans_pos(shape->coord, &x, &y);
19c603dd6ff9 Add text shape.
Thinker K.F. Li <thinker@branda.to>
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