MadButterfly: src/shape_text.c annotate

annotate src/shape_text.c @ 461:61a0bceb369d

Add alignment support for the text layout

author	wycc@122-116-38-188.HINET-IP.hinet.net
date	Wed, 28 Oct 2009 02:35:08 +0800
parents	16116d84bc5e
children	d8181696b689

rev	line source
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	1 #include <stdio.h>
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	2 #include <stdlib.h>
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	3 #include <string.h>
31 da770188a44d resize font size for changige of coord. Thinker K.F. Li <thinker@branda.to> parents: 30 diff changeset	4 #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	5 #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	6 #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	7 #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	8 #include "mb_shapes.h"
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	9
104 98c83441d7d6 - Thinker K.F. Li <thinker@branda.to> parents: 88 diff changeset	10 #define ASSERT(x)
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	11 #define OK 0
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	12 #define ERR -1
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	13
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	14 typedef struct _sh_text {
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	15 shape_t shape;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	16 char *data;
461 61a0bceb369d Add alignment support for the text layout wycc@122-116-38-188.HINET-IP.hinet.net parents: 448 diff changeset	17 co_aix x, y,w,h;
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	18 co_aix d_x, d_y; /* device x and y */
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	19 co_aix font_size;
31 da770188a44d resize font size for changige of coord. Thinker K.F. Li <thinker@branda.to> parents: 30 diff changeset	20 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	21 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	22 mbe_scaled_font_t *scaled_font;
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	23 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	24 PangoLayout *layout;
291 137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	25 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	26 PangoAttrList *attrs;
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	27 } sh_text_t;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	28
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	29 #define TXF_SCALE_DIRTY 0x1
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	30
73 9ab15ebc9061 Observer for mouse events Thinker K.F. Li <thinker@branda.to> parents: 58 diff changeset	31 static void sh_text_free(shape_t *shape) {
9ab15ebc9061 Observer for mouse events Thinker K.F. Li <thinker@branda.to> parents: 58 diff changeset	32 sh_text_t text = (sh_text_t )shape;
9ab15ebc9061 Observer for mouse events Thinker K.F. Li <thinker@branda.to> parents: 58 diff changeset	33
9ab15ebc9061 Observer for mouse events Thinker K.F. Li <thinker@branda.to> parents: 58 diff changeset	34 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	35 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	36 mbe_font_face_destroy(text->face);
73 9ab15ebc9061 Observer for mouse events Thinker K.F. Li <thinker@branda.to> parents: 58 diff changeset	37 }
9ab15ebc9061 Observer for mouse events Thinker K.F. Li <thinker@branda.to> parents: 58 diff changeset	38
448 16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine. Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	39 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	40 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	41 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	42 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	43 sh_text_t *text;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	44
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	45 text = (sh_text_t *)malloc(sizeof(sh_text_t));
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	46 if(text == NULL)
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	47 return NULL;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	48
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	49 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	50 mb_obj_init(text, MBO_TEXT);
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	51 text->data = strdup(txt);
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	52 if(text->data == NULL) {
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	53 free(text);
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	54 return NULL;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	55 }
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	56 text->x = x;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	57 text->y = y;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	58 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	59 mbe_font_face_reference(face);
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	60 text->face = face;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	61 text->flags \|= TXF_SCALE_DIRTY;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	62
73 9ab15ebc9061 Observer for mouse events Thinker K.F. Li <thinker@branda.to> parents: 58 diff changeset	63 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	64 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	65 text->attrs = attrs;
291 137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	66 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	67 text->w = text->h = 0;
346 b391722bf20e sh_image_t::img_data is managed by paint_image_t. Thinker K.F. Li <thinker@branda.to> parents: 330 diff changeset	68
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	69 rdman_shape_man(rdman, (shape_t *)text);
b90abd31a281 Postponse free of coords, shapes, and paints when the rdman is dirty. Thinker K.F. Li <thinker@branda.to> parents: 104 diff changeset	70
73 9ab15ebc9061 Observer for mouse events Thinker K.F. Li <thinker@branda.to> parents: 58 diff changeset	71 return (shape_t *)text;
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	72 }
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	73
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	74 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	75 {
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 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	77 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	78 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	79 }
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
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 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	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 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	85 *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	86 *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	87 }
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
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 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	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 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	92 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	93 }
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
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 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	96 sh_text_t text = (sh_text_t )shape;
dd813dcc232c New example, calculator. Thinker K.F. Li <thinker@branda.to> parents: 73 diff changeset	97 char *buf;
dd813dcc232c New example, calculator. Thinker K.F. Li <thinker@branda.to> parents: 73 diff changeset	98
dd813dcc232c New example, calculator. Thinker K.F. Li <thinker@branda.to> parents: 73 diff changeset	99 buf = strdup(txt);
dd813dcc232c New example, calculator. Thinker K.F. Li <thinker@branda.to> parents: 73 diff changeset	100 if(text->data) free(text->data);
dd813dcc232c New example, calculator. Thinker K.F. Li <thinker@branda.to> parents: 73 diff changeset	101 text->data = buf;
dd813dcc232c New example, calculator. Thinker K.F. Li <thinker@branda.to> parents: 73 diff changeset	102 }
dd813dcc232c New example, calculator. Thinker K.F. Li <thinker@branda.to> parents: 73 diff changeset	103
292 7270e368ee98 Add more text API wycc parents: 291 diff changeset	104 void sh_text_set_color(shape_t *shape, unsigned int color)
7270e368ee98 Add more text API wycc parents: 291 diff changeset	105 {
294 2ca0773cd48d * Add MBAF files wycc parents: 292 diff changeset	106 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	107 sh_text_t text = (sh_text_t )shape;
294 2ca0773cd48d * Add MBAF files wycc parents: 292 diff changeset	108 attr->start_index = 0;
292 7270e368ee98 Add more text API wycc parents: 291 diff changeset	109 attr->end_index = -1;
7270e368ee98 Add more text API wycc parents: 291 diff changeset	110 pango_attr_list_change(text->attrs, attr);
7270e368ee98 Add more text API wycc parents: 291 diff changeset	111 }
7270e368ee98 Add more text API wycc parents: 291 diff changeset	112 void sh_text_set_bold(shape_t *shape,int bold)
7270e368ee98 Add more text API wycc parents: 291 diff changeset	113 {
7270e368ee98 Add more text API wycc parents: 291 diff changeset	114 PangoAttribute *attr = pango_attr_weight_new(bold? PANGO_WEIGHT_BOLD:PANGO_WEIGHT_NORMAL);
7270e368ee98 Add more text API wycc parents: 291 diff changeset	115 sh_text_t text = (sh_text_t )shape;
294 2ca0773cd48d * Add MBAF files wycc parents: 292 diff changeset	116 attr->start_index = 0;
292 7270e368ee98 Add more text API wycc parents: 291 diff changeset	117 attr->end_index = -1;
7270e368ee98 Add more text API wycc parents: 291 diff changeset	118 pango_attr_list_change(text->attrs, attr);
7270e368ee98 Add more text API wycc parents: 291 diff changeset	119 }
7270e368ee98 Add more text API wycc parents: 291 diff changeset	120 void sh_text_set_italic(shape_t *shape,int italic)
7270e368ee98 Add more text API wycc parents: 291 diff changeset	121 {
7270e368ee98 Add more text API wycc parents: 291 diff changeset	122 PangoAttribute *attr = pango_attr_style_new(italic? PANGO_STYLE_ITALIC:PANGO_STYLE_NORMAL);
7270e368ee98 Add more text API wycc parents: 291 diff changeset	123 sh_text_t text = (sh_text_t )shape;
294 2ca0773cd48d * Add MBAF files wycc parents: 292 diff changeset	124 attr->start_index = 0;
292 7270e368ee98 Add more text API wycc parents: 291 diff changeset	125 attr->end_index = -1;
7270e368ee98 Add more text API wycc parents: 291 diff changeset	126 pango_attr_list_change(text->attrs, attr);
7270e368ee98 Add more text API wycc parents: 291 diff changeset	127 }
7270e368ee98 Add more text API wycc parents: 291 diff changeset	128 void sh_text_set_underline(shape_t *shape,int underline)
7270e368ee98 Add more text API wycc parents: 291 diff changeset	129 {
7270e368ee98 Add more text API wycc parents: 291 diff changeset	130 PangoAttribute *attr = pango_attr_underline_new(underline? PANGO_UNDERLINE_SINGLE:PANGO_UNDERLINE_NONE);
7270e368ee98 Add more text API wycc parents: 291 diff changeset	131 sh_text_t text = (sh_text_t )shape;
294 2ca0773cd48d * Add MBAF files wycc parents: 292 diff changeset	132 attr->start_index = 0;
292 7270e368ee98 Add more text API wycc parents: 291 diff changeset	133 attr->end_index = -1;
7270e368ee98 Add more text API wycc parents: 291 diff changeset	134 pango_attr_list_change(text->attrs, attr);
7270e368ee98 Add more text API wycc parents: 291 diff changeset	135 }
7270e368ee98 Add more text API wycc parents: 291 diff changeset	136 void sh_text_set_font(shape_t shape,char family)
7270e368ee98 Add more text API wycc parents: 291 diff changeset	137 {
7270e368ee98 Add more text API wycc parents: 291 diff changeset	138 PangoAttribute *attr = pango_attr_family_new(family);
7270e368ee98 Add more text API wycc parents: 291 diff changeset	139 sh_text_t text = (sh_text_t )shape;
294 2ca0773cd48d * Add MBAF files wycc parents: 292 diff changeset	140 attr->start_index = 0;
292 7270e368ee98 Add more text API wycc parents: 291 diff changeset	141 attr->end_index = -1;
7270e368ee98 Add more text API wycc parents: 291 diff changeset	142 pango_attr_list_change(text->attrs, attr);
7270e368ee98 Add more text API wycc parents: 291 diff changeset	143 }
7270e368ee98 Add more text API wycc parents: 291 diff changeset	144
461 61a0bceb369d Add alignment support for the text layout wycc@122-116-38-188.HINET-IP.hinet.net parents: 448 diff changeset	145 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	146 {
61a0bceb369d Add alignment support for the text layout wycc@122-116-38-188.HINET-IP.hinet.net parents: 448 diff changeset	147 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	148 text->align = align;
61a0bceb369d Add alignment support for the text layout wycc@122-116-38-188.HINET-IP.hinet.net parents: 448 diff changeset	149 }
61a0bceb369d Add alignment support for the text layout wycc@122-116-38-188.HINET-IP.hinet.net parents: 448 diff changeset	150 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	151 {
61a0bceb369d Add alignment support for the text layout wycc@122-116-38-188.HINET-IP.hinet.net parents: 448 diff changeset	152 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	153 text->w = width;
61a0bceb369d Add alignment support for the text layout wycc@122-116-38-188.HINET-IP.hinet.net parents: 448 diff changeset	154 }
291 137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	155 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	156 {
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	157 PangoAttribute *attr;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	158 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	159
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	160 if (end == -1) {
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	161 end = strlen(text->data);
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	162 } else
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	163 end++;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	164 if (format->property & TEXTSTYLE_BOLD) {
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	165 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	166 attr->start_index = begin;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	167 attr->end_index = end;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	168 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	169 }
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	170 if (format->property & TEXTSTYLE_ITALIC) {
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	171 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	172 attr->start_index = begin;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	173 attr->end_index = end;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	174 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	175 }
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	176 if (format->property & TEXTSTYLE_UNDERLINE) {
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	177 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	178 attr->start_index = begin;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	179 attr->end_index = end;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	180 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	181 }
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	182 if (format->property & TEXTSTYLE_COLOR) {
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	183 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	184 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	185 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	186 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	187 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	188 attr->start_index = begin;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	189 attr->end_index = end;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	190 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	191 }
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	192 if (format->property & TEXTSTYLE_FONT) {
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	193 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	194 attr->start_index = begin;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	195 attr->end_index = end;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	196 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	197 }
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	198 if (format->property & TEXTSTYLE_ALIGN) {
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	199 // 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	200 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	201 return;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	202 text->align = format->align;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	203 }
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	204 }
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	205
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	206 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	207 mbe_matrix_t fmatrix;
16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine. Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	208 mbe_matrix_t ctm;
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;
16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine. Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	210 mbe_font_options_t *fopt;
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	211
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	212 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	213 pango_extents_to_pixels(extents,NULL);
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	214 return OK;
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
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	217 void sh_text_transform(shape_t *shape) {
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	218 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	219 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	220 canvas_t *canvas;
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	221 co_aix x, y;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	222 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	223 PangoRectangle extents;
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	224 co_aix poses[2][2];
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	225 int r;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	226
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	227 text = (sh_text_t *)shape;
346 b391722bf20e sh_image_t::img_data is managed by paint_image_t. Thinker K.F. Li <thinker@branda.to> parents: 330 diff changeset	228
31 da770188a44d resize font size for changige of coord. Thinker K.F. Li <thinker@branda.to> parents: 30 diff changeset	229 text->d_font_size = coord_trans_size(shape->coord, text->font_size);
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
b391722bf20e sh_image_t::img_data is managed by paint_image_t. Thinker K.F. Li <thinker@branda.to> parents: 330 diff changeset	231 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	232 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	233 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	234
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	235 x = text->x;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	236 y = text->y;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	237 coord_trans_pos(shape->coord, &x, &y);
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	238 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	239
280 c8b6ca46950b Add merged result wycc parents: 279 diff changeset	240 //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 98c83441d7d6 - Thinker K.F. Li <thinker@branda.to> parents: 88 diff changeset	241 ASSERT(r == OK);
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	242
285 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_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	244 text->d_y = y-PANGO_DESCENT(extents)+5;
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	245 shw = shape->stroke_width / 2;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	246 /* 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	247 * 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	248 */
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	249
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	250 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	251 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	252 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	253 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	254 geo_from_positions(shape->geo, 2, poses);
104 98c83441d7d6 - Thinker K.F. Li <thinker@branda.to> parents: 88 diff changeset	255 /! \todo Support ratation for shape_text. /
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	256 }
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	257
448 16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine. Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	258 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	259 {
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 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	261 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	262 PangoFontDescription *desc;
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	263
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	264 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	265 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	266 }
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 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	268 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	269 //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	270 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	271 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	272 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	273 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	274 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	275 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	276 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	277 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	278 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	279 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	280 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	281 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	282 //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	283 }
448 16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine. Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	284 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	285 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	286 pango_cairo_layout_path(cr,text->layout);
27 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
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	289
448 16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine. Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	290 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	291 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	292 }
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	293

Mercurial > MadButterfly

annotate src/shape_text.c @ 461:61a0bceb369d