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comparison nodejs/svg.js @ 631:01e960bfc9ff

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Implement text style parser
author wycc
date Wed, 21 Jul 2010 07:26:12 +0800
parents 9f2080b68f8e
children e517bbefe0e9
comparison
equal deleted inserted replaced
625:9f2080b68f8e 631:01e960bfc9ff
24 if (n == null) return 0; 24 if (n == null) return 0;
25 var a = n.attr(name); 25 var a = n.attr(name);
26 if (a==null) return 0; 26 if (a==null) return 0;
27 return parseInt(a.value()); 27 return parseInt(a.value());
28 } 28 }
29 29 function parsePointSize(s)
30 function parseTextStyle(obj,n) 30 {
31 var fs=0;
32 var i;
33
34 for(i=0;i<s.length;i++) {
35 if (s[i]<'0' || s[i] > '9') break;
36 fs = fs*10 + (s[i]-'0');
37 }
38 return fs;
39
40 }
41
42
43 function parseColor(c)
44 {
45 if (c[0] == '#') {
46 return parseInt(c.substring(1,3),16)<<16 | parseInt(c.substring(3,5),16)<<8 | parseInt(c.substring(5,7),16);
47 }
48 }
49 function parseTextStyle(style,n)
31 { 50 {
32 var attr; 51 var attr;
33 if (n) { 52 if (n) {
34 attr = n.attr('style'); 53 attr = n.attr('style');
35 } else { 54 } else {
36 attr = null; 55 attr = null;
37 } 56 }
38 var fs = 20;
39 var family="ciurier";
40 if (attr == null) { 57 if (attr == null) {
41 var paint = mb_rt.paint_color_new(1,1,1,1); 58 return;
42 var face=mb_rt.font_face_query(family, 2, 100);
43 obj.set_style([[20,face,fs]]);
44 return paint;
45 } 59 }
46 var f = attr.value().split(';'); 60 var f = attr.value().split(';');
47 61
48 for(i in f) { 62 for(i in f) {
49 var kv = f[i].split(':'); 63 var kv = f[i].split(':');
50 if (kv[0] == 'font-size') { 64 if (kv[0] == 'font-size') {
51 fs = parsePointSize(kv[1]); 65 style.fs = parsePointSize(kv[1]);
52 } else if (kv[0] == "font-style") { 66 } else if (kv[0] == "font-style") {
53 } else if (kv[0] == "font-weight") { 67 } else if (kv[0] == "font-weight") {
54 } else if (kv[0] == "fill") { 68 } else if (kv[0] == "fill") {
69 style.color = parseColor(kv[1]);
55 } else if (kv[0] == "fill-opacity") { 70 } else if (kv[0] == "fill-opacity") {
56 } else if (kv[0] == "stroke") { 71 } else if (kv[0] == "stroke") {
57 } else if (kv[0] == "stroke-width") { 72 } else if (kv[0] == "stroke-width") {
58 } else if (kv[0] == "stroke-linecap") { 73 } else if (kv[0] == "stroke-linecap") {
59 } else if (kv[0] == "stroke-linejoin") { 74 } else if (kv[0] == "stroke-linejoin") {
60 } else if (kv[0] == "stroke-lineopacity") { 75 } else if (kv[0] == "stroke-lineopacity") {
61 } else if (kv[0] == "font-family") { 76 } else if (kv[0] == "font-family") {
77 style.family = kv[1];
62 } else if (kv[0] == "font-stretch") { 78 } else if (kv[0] == "font-stretch") {
63 } else if (kv[0] == "font-variant") { 79 } else if (kv[0] == "font-variant") {
64 } else if (kv[0] == "text-anchor") { 80 } else if (kv[0] == "text-anchor") {
65 } else if (kv[0] == "text-align") { 81 } else if (kv[0] == "text-align") {
66 } else if (kv[0] == "writing-mode") { 82 } else if (kv[0] == "writing-mode") {
67 } else if (kv[0] == "line-height") { 83 } else if (kv[0] == "line-height") {
68 sys.puts("Unknown style: "+kv[0]); 84 sys.puts("Unknown style: "+kv[0]);
69 } 85 }
70 } 86 }
71 var paint = mb_rt.paint_color_new(1,1,1,1); 87 }
72 var face=mb_rt.font_face_query(family, 2, 100); 88
73 obj.set_style([[20,face,fs]]); 89 function _MB_parseTSpan(coord, n,style)
74 return paint;
75 }
76
77 function _MB_parseTSpan(coord, n)
78 { 90 {
79 var x = getInteger(n,'x'); 91 var x = getInteger(n,'x');
80 var y = getInteger(n,'y'); 92 var y = getInteger(n,'y');
81 var tcoord = mb_rt.coord_new(coord); 93 var tcoord = mb_rt.coord_new(coord);
82 var nodes = n.childNodes(); 94 var nodes = n.childNodes();
83 var k; 95 var k;
84 96
85 sys.puts(n.text()); 97 sys.puts(n.text());
86 var obj = mb_rt.stext_new(n.text(),x,y); 98 var obj = mb_rt.stext_new(n.text(),x,y);
87 var paint = parseTextStyle(obj,n); 99 parseTextStyle(style,n);
88 paint.fill(obj); 100 style.paint = mb_rt.paint_color_new(1,1,1,1);
101 style.face=mb_rt.font_face_query(style.family, 2, 100);
102 obj.set_style([[20,style.face,style.fs]]);
103 style.paint.fill(obj);
89 tcoord.add_shape(obj); 104 tcoord.add_shape(obj);
90 for(k in nodes) { 105 for(k in nodes) {
91 var name = nodes[k].name(); 106 var name = nodes[k].name();
92 if (name == "tspan") { 107 if (name == "tspan") {
93 _MB_parseTSpan(tcoord,nodes[k]); 108 _MB_parseTSpan(tcoord,nodes[k]);
99 function _MB_parseText(coord,id, n) 114 function _MB_parseText(coord,id, n)
100 { 115 {
101 var x = getInteger(n,'x'); 116 var x = getInteger(n,'x');
102 var y = getInteger(n,'y'); 117 var y = getInteger(n,'y');
103 var tcoord = mb_rt.coord_new(coord); 118 var tcoord = mb_rt.coord_new(coord);
104 //var paint = parseTextStyle(n); 119 var style = new Object();
120 style.fs = 20;
121 style.family = 'courier';
122 parseTextStyle(style,n);
105 var nodes = n.childNodes(); 123 var nodes = n.childNodes();
106 var k; 124 var k;
107 for(k in nodes) { 125 for(k in nodes) {
108 var n = nodes[k].name(); 126 var n = nodes[k].name();
109 if (n == "tspan") { 127 if (n == "tspan") {
110 _MB_parseTSpan(tcoord,nodes[k]); 128 _MB_parseTSpan(tcoord,nodes[k],style);
111 } else { 129 } else {
112 } 130 }
113 } 131 }
114 132
115 133