MadButterfly: src/shape_text.c annotate

annotate src/shape_text.c @ 330:b0571f10c1b8

Use pango_cairo_layout_path() instead of pango_cairo_show_layout(). - pango_cairo_show_layout() will stroke and fill text. - We want shape itself add pathes to cairo context, but not stroke and fill. - redraw manager will apply paints (source surface) on cairo context before stroke and fill to get right color. - Using pango_cairo_show_layout() we can not apply stroke and fill color seperately. So, pango_cairo_layout_path() is used instead of.

author	Thinker K.F. Li <thinker@branda.to>
date	Fri, 06 Mar 2009 21:04:52 +0800
parents	f894b30676e9
children	b391722bf20e

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>
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	5 #include <cairo.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;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	17 co_aix x, y;
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;
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	21 cairo_font_face_t *face;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	22 cairo_scaled_font_t *scaled_font;
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)
9ab15ebc9061 Observer for mouse events Thinker K.F. Li <thinker@branda.to> parents: 58 diff changeset	35 cairo_scaled_font_destroy(text->scaled_font);
9ab15ebc9061 Observer for mouse events Thinker K.F. Li <thinker@branda.to> parents: 58 diff changeset	36 cairo_font_face_destroy(text->face);
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
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	39 static void sh_text_P_generate_layout(sh_text_t text,cairo_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,
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	42 co_aix font_size, cairo_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
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	49
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	50 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	51 mb_obj_init(text, MBO_TEXT);
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	52 text->data = strdup(txt);
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	53 if(text->data == NULL) {
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	54 free(text);
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	55 return NULL;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	56 }
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	57 text->x = x;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	58 text->y = y;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	59 text->font_size = font_size;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	60 cairo_font_face_reference(face);
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	61 text->face = face;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	62 text->flags \|= TXF_SCALE_DIRTY;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	63
73 9ab15ebc9061 Observer for mouse events Thinker K.F. Li <thinker@branda.to> parents: 58 diff changeset	64 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	65 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	66 text->attrs = attrs;
291 137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	67 text->align = TEXTALIGN_START;
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	68 sh_text_P_generate_layout(text, rdman->cr);
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	69
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	70 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	71
73 9ab15ebc9061 Observer for mouse events Thinker K.F. Li <thinker@branda.to> parents: 58 diff changeset	72 return (shape_t *)text;
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	73 }
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	74
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	75 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	76 {
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 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	78 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	79 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	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
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 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	84 {
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 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	86 *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	87 *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	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
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 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	91 {
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 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	93 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	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
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 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	97 sh_text_t text = (sh_text_t )shape;
dd813dcc232c New example, calculator. Thinker K.F. Li <thinker@branda.to> parents: 73 diff changeset	98 char *buf;
dd813dcc232c New example, calculator. Thinker K.F. Li <thinker@branda.to> parents: 73 diff changeset	99
dd813dcc232c New example, calculator. Thinker K.F. Li <thinker@branda.to> parents: 73 diff changeset	100 buf = strdup(txt);
dd813dcc232c New example, calculator. Thinker K.F. Li <thinker@branda.to> parents: 73 diff changeset	101 if(text->data) free(text->data);
dd813dcc232c New example, calculator. Thinker K.F. Li <thinker@branda.to> parents: 73 diff changeset	102 text->data = buf;
dd813dcc232c New example, calculator. Thinker K.F. Li <thinker@branda.to> parents: 73 diff changeset	103 }
dd813dcc232c New example, calculator. Thinker K.F. Li <thinker@branda.to> parents: 73 diff changeset	104
292 7270e368ee98 Add more text API wycc parents: 291 diff changeset	105 void sh_text_set_color(shape_t *shape, unsigned int color)
7270e368ee98 Add more text API wycc parents: 291 diff changeset	106 {
294 2ca0773cd48d * Add MBAF files wycc parents: 292 diff changeset	107 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	108 sh_text_t text = (sh_text_t )shape;
294 2ca0773cd48d * Add MBAF files wycc parents: 292 diff changeset	109 attr->start_index = 0;
292 7270e368ee98 Add more text API wycc parents: 291 diff changeset	110 attr->end_index = -1;
7270e368ee98 Add more text API wycc parents: 291 diff changeset	111 pango_attr_list_change(text->attrs, attr);
7270e368ee98 Add more text API wycc parents: 291 diff changeset	112 }
7270e368ee98 Add more text API wycc parents: 291 diff changeset	113 void sh_text_set_bold(shape_t *shape,int bold)
7270e368ee98 Add more text API wycc parents: 291 diff changeset	114 {
7270e368ee98 Add more text API wycc parents: 291 diff changeset	115 PangoAttribute *attr = pango_attr_weight_new(bold? PANGO_WEIGHT_BOLD:PANGO_WEIGHT_NORMAL);
7270e368ee98 Add more text API wycc parents: 291 diff changeset	116 sh_text_t text = (sh_text_t )shape;
294 2ca0773cd48d * Add MBAF files wycc parents: 292 diff changeset	117 attr->start_index = 0;
292 7270e368ee98 Add more text API wycc parents: 291 diff changeset	118 attr->end_index = -1;
7270e368ee98 Add more text API wycc parents: 291 diff changeset	119 pango_attr_list_change(text->attrs, attr);
7270e368ee98 Add more text API wycc parents: 291 diff changeset	120 }
7270e368ee98 Add more text API wycc parents: 291 diff changeset	121 void sh_text_set_italic(shape_t *shape,int italic)
7270e368ee98 Add more text API wycc parents: 291 diff changeset	122 {
7270e368ee98 Add more text API wycc parents: 291 diff changeset	123 PangoAttribute *attr = pango_attr_style_new(italic? PANGO_STYLE_ITALIC:PANGO_STYLE_NORMAL);
7270e368ee98 Add more text API wycc parents: 291 diff changeset	124 sh_text_t text = (sh_text_t )shape;
294 2ca0773cd48d * Add MBAF files wycc parents: 292 diff changeset	125 attr->start_index = 0;
292 7270e368ee98 Add more text API wycc parents: 291 diff changeset	126 attr->end_index = -1;
7270e368ee98 Add more text API wycc parents: 291 diff changeset	127 pango_attr_list_change(text->attrs, attr);
7270e368ee98 Add more text API wycc parents: 291 diff changeset	128 }
7270e368ee98 Add more text API wycc parents: 291 diff changeset	129 void sh_text_set_underline(shape_t *shape,int underline)
7270e368ee98 Add more text API wycc parents: 291 diff changeset	130 {
7270e368ee98 Add more text API wycc parents: 291 diff changeset	131 PangoAttribute *attr = pango_attr_underline_new(underline? PANGO_UNDERLINE_SINGLE:PANGO_UNDERLINE_NONE);
7270e368ee98 Add more text API wycc parents: 291 diff changeset	132 sh_text_t text = (sh_text_t )shape;
294 2ca0773cd48d * Add MBAF files wycc parents: 292 diff changeset	133 attr->start_index = 0;
292 7270e368ee98 Add more text API wycc parents: 291 diff changeset	134 attr->end_index = -1;
7270e368ee98 Add more text API wycc parents: 291 diff changeset	135 pango_attr_list_change(text->attrs, attr);
7270e368ee98 Add more text API wycc parents: 291 diff changeset	136 }
7270e368ee98 Add more text API wycc parents: 291 diff changeset	137 void sh_text_set_font(shape_t shape,char family)
7270e368ee98 Add more text API wycc parents: 291 diff changeset	138 {
7270e368ee98 Add more text API wycc parents: 291 diff changeset	139 PangoAttribute *attr = pango_attr_family_new(family);
7270e368ee98 Add more text API wycc parents: 291 diff changeset	140 sh_text_t text = (sh_text_t )shape;
294 2ca0773cd48d * Add MBAF files wycc parents: 292 diff changeset	141 attr->start_index = 0;
292 7270e368ee98 Add more text API wycc parents: 291 diff changeset	142 attr->end_index = -1;
7270e368ee98 Add more text API wycc parents: 291 diff changeset	143 pango_attr_list_change(text->attrs, attr);
7270e368ee98 Add more text API wycc parents: 291 diff changeset	144 }
7270e368ee98 Add more text API wycc parents: 291 diff changeset	145
291 137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	146 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	147 {
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	148 PangoAttribute *attr;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	149 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	150
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	151 if (end == -1) {
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	152 end = strlen(text->data);
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	153 } else
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	154 end++;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	155 if (format->property & TEXTSTYLE_BOLD) {
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	156 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	157 attr->start_index = begin;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	158 attr->end_index = end;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	159 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	160 }
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	161 if (format->property & TEXTSTYLE_ITALIC) {
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	162 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	163 attr->start_index = begin;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	164 attr->end_index = end;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	165 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	166 }
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	167 if (format->property & TEXTSTYLE_UNDERLINE) {
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	168 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	169 attr->start_index = begin;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	170 attr->end_index = end;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	171 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	172 }
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	173 if (format->property & TEXTSTYLE_COLOR) {
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	174 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	175 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	176 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	177 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	178 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	179 attr->start_index = begin;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	180 attr->end_index = end;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	181 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	182 }
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	183 if (format->property & TEXTSTYLE_FONT) {
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	184 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	185 attr->start_index = begin;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	186 attr->end_index = end;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	187 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	188 }
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	189 if (format->property & TEXTSTYLE_ALIGN) {
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	190 // 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	191 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	192 return;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	193 text->align = format->align;
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	194 }
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	195 }
137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	196
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	197 static int get_extents(sh_text_t text, PangoRectangle extents) {
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	198 cairo_matrix_t fmatrix;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	199 cairo_matrix_t ctm;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	200 cairo_scaled_font_t *new_scaled;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	201 cairo_font_options_t *fopt;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	202
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	203 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	204 pango_extents_to_pixels(extents,NULL);
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	205 return OK;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	206 }
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	207
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	208 void sh_text_transform(shape_t *shape) {
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	209 sh_text_t *text;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	210 co_aix x, y;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	211 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	212 PangoRectangle extents;
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	213 co_aix poses[2][2];
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	214 int r;
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 text = (sh_text_t *)shape;
31 da770188a44d resize font size for changige of coord. Thinker K.F. Li <thinker@branda.to> parents: 30 diff changeset	217
da770188a44d resize font size for changige of coord. Thinker K.F. Li <thinker@branda.to> parents: 30 diff changeset	218 text->d_font_size = coord_trans_size(shape->coord, text->font_size);
da770188a44d resize font size for changige of coord. Thinker K.F. Li <thinker@branda.to> parents: 30 diff changeset	219
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	220 x = text->x;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	221 y = text->y;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	222 coord_trans_pos(shape->coord, &x, &y);
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	223 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	224
280 c8b6ca46950b Add merged result wycc parents: 279 diff changeset	225 //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	226 ASSERT(r == OK);
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	227
285 248a40d51473 Check in test program for sh_text_set_text for debugging. It is not working yet. wycc parents: 280 diff changeset	228 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	229 text->d_y = y-PANGO_DESCENT(extents)+5;
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	230 shw = shape->stroke_width / 2;
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	231 /* 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	232 * 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	233 */
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	234
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	235 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	236 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	237 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	238 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	239 geo_from_positions(shape->geo, 2, poses);
104 98c83441d7d6 - Thinker K.F. Li <thinker@branda.to> parents: 88 diff changeset	240 /! \todo Support ratation for shape_text. /
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	241 }
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	242
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	243 static void sh_text_P_generate_layout(sh_text_t text,cairo_t 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	244 {
a90fd749af82 Implement the whole tspan attribute. Currently, we can accept font family/font style/font weight and font size. wycc parents: 224 diff changeset	245 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	246 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	247 PangoFontDescription *desc;
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	248
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	249 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	250 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	251 }
a90fd749af82 Implement the whole tspan attribute. Currently, we can accept font family/font style/font weight and font size. wycc parents: 224 diff changeset	252 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	253 desc = pango_font_description_from_string("Sans Bold");
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	254 //cairo_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	255 pango_layout_set_font_description (text->layout, desc);
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	256 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	257 pango_layout_set_attributes(text->layout, text->attrs);
285 248a40d51473 Check in test program for sh_text_set_text for debugging. It is not working yet. wycc parents: 280 diff changeset	258 pango_cairo_update_layout(cr,text->layout);
291 137a73822d48 Add sh_text_set_style support to change the style of text element. wycc parents: 289 diff changeset	259 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	260 }
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	261 static void draw_text(sh_text_t text, cairo_t cr) {
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	262 sh_text_P_generate_layout(text, cr);
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	263 cairo_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	264 pango_cairo_layout_path(cr,text->layout);
27 19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	265 }
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	266
19c603dd6ff9 Add text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	267
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	268 void sh_text_draw(shape_t shape, cairo_t 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	269 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	270 }
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	271

Mercurial > MadButterfly

annotate src/shape_text.c @ 330:b0571f10c1b8