123 lines
No EOL
3.5 KiB
JavaScript
123 lines
No EOL
3.5 KiB
JavaScript
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Elm.Native.Graphics.Text = function(elm) {
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'use strict';
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elm.Native = elm.Native || {};
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elm.Native.Graphics = elm.Native.Graphics || {};
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if (elm.Native.Graphics.Text) return elm.Native.Graphics.Text;
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var JS = Elm.JavaScript(elm);
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var htmlHeight = Elm.Native.Utils(elm).htmlHeight;
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var Color = Elm.Native.Graphics.Color(elm);
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var Element = Elm.Graphics.Element(elm);
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function makeSpaces(s) {
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if (s.length == 0) { return s; }
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var arr = s.split('');
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if (arr[0] == ' ') { arr[0] = " " }
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for (var i = arr.length; --i; ) {
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if (arr[i][0] == ' ' && arr[i-1] == ' ') {
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arr[i-1] = arr[i-1] + arr[i];
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arr[i] = '';
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}
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}
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for (var i = arr.length; i--; ) {
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if (arr[i].length > 1 && arr[i][0] == ' ') {
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var spaces = arr[i].split('');
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for (var j = spaces.length - 2; j >= 0; j -= 2) {
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spaces[j] = ' ';
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}
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arr[i] = spaces.join('');
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}
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}
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arr = arr.join('');
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if (arr[arr.length-1] === " ") {
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return arr.slice(0,-1) + ' ';
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}
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return arr;
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}
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function properEscape(str) {
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if (str.length == 0) return str;
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str = str //.replace(/&/g, "&")
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.replace(/"/g, /*"*/ '"')
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.replace(/'/g, /*'*/ "'")
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.replace(/</g, "<")
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.replace(/>/g, ">")
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.replace(/\n/g, "<br/>");
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var arr = str.split('<br/>');
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for (var i = arr.length; i--; ) {
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arr[i] = makeSpaces(arr[i]);
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}
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return arr.join('<br/>');
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}
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function toText(str) { return properEscape(JS.fromString(str)); }
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function addTag(tag) { return function(text) {
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return '<' + tag + ' style="padding:0;margin:0">' + text + '</' + tag + '>';
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}
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}
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function addStyle(style, value, text) {
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return "<span style='" + style + ":" + value + "'>" + text + "</span>";
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}
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function typeface(name, text) {
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return addStyle('font-family', JS.fromString(name), text);
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}
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function size(px, text) { return addStyle('font-size', px + 'px', text) }
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var header = addTag('h1');
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function height(h, text) { return addStyle('font-size', hf+'em', text) }
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function italic(text) { return addStyle('font-style', 'italic', text) }
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var bold = addTag('b');
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function color(c, text) {
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return addStyle('color', Color.extract(c), text);
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}
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function underline(text) { return addStyle('text-decoration', 'underline', text) }
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function overline(text) { return addStyle('text-decoration', 'overline', text) }
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function strikeThrough(text) {
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return addStyle('text-decoration', 'line-through', text);
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}
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function link(href, text) {
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return "<a href='" + toText(href) + "'>" + text + "</a>";
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}
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function position(pos) { return function(text) {
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var e = {ctor:'RawHtml',
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_0: '<div style="padding:0;margin:0;text-align:' +
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pos + '">' + text + '</div>'
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};
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var w = elm.node.clientWidth;
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return A3(Element.newElement, w, A2(htmlHeight, w, text), e);
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}
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}
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function asText(v) {
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return position('left')(typeface('monospace', toText(show(v))));
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}
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return elm.Native.Graphics.Text = {
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toText: toText,
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header : header,
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height : F2(height),
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italic : italic,
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bold : bold,
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underline : underline,
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overline : overline,
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strikeThrough : strikeThrough,
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monospace : function(text) { return typeface('monospace', text) },
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typeface : F2(typeface),
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color : F2(color),
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link : F2(link),
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justified : position('justify'),
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centered : position('center'),
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righted : position('right'),
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text : position('left'),
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asText : asText
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};
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}; |