'use strict';
exports.__esModule = true;
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
var _core = require('../core');
var core = _interopRequireWildcard(_core);
var _ObservablePoint = require('../core/math/ObservablePoint');
var _ObservablePoint2 = _interopRequireDefault(_ObservablePoint);
var _settings = require('../core/settings');
var _settings2 = _interopRequireDefault(_settings);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
/**
* A BitmapText object will create a line or multiple lines of text using bitmap font. To
* split a line you can use '\n', '\r' or '\r\n' in your string. You can generate the fnt files using:
*
* A BitmapText can only be created when the font is loaded
*
* ```js
* // in this case the font is in a file called 'desyrel.fnt'
* let bitmapText = new PIXI.extras.BitmapText("text using a fancy font!", {font: "35px Desyrel", align: "right"});
* ```
*
* http://www.angelcode.com/products/bmfont/ for windows or
* http://www.bmglyph.com/ for mac.
*
* @class
* @extends PIXI.Container
* @memberof PIXI.extras
*/
var BitmapText = function (_core$Container) {
_inherits(BitmapText, _core$Container);
/**
* @param {string} text - The copy that you would like the text to display
* @param {object} style - The style parameters
* @param {string|object} style.font - The font descriptor for the object, can be passed as a string of form
* "24px FontName" or "FontName" or as an object with explicit name/size properties.
* @param {string} [style.font.name] - The bitmap font id
* @param {number} [style.font.size] - The size of the font in pixels, e.g. 24
* @param {string} [style.align='left'] - Alignment for multiline text ('left', 'center' or 'right'), does not affect
* single line text
* @param {number} [style.tint=0xFFFFFF] - The tint color
*/
function BitmapText(text) {
var style = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
_classCallCheck(this, BitmapText);
/**
* Private tracker for the width of the overall text
*
* @member {number}
* @private
*/
var _this = _possibleConstructorReturn(this, _core$Container.call(this));
_this._textWidth = 0;
/**
* Private tracker for the height of the overall text
*
* @member {number}
* @private
*/
_this._textHeight = 0;
/**
* Private tracker for the letter sprite pool.
*
* @member {PIXI.Sprite[]}
* @private
*/
_this._glyphs = [];
/**
* Private tracker for the current style.
*
* @member {object}
* @private
*/
_this._font = {
tint: style.tint !== undefined ? style.tint : 0xFFFFFF,
align: style.align || 'left',
name: null,
size: 0
};
/**
* Private tracker for the current font.
*
* @member {object}
* @private
*/
_this.font = style.font; // run font setter
/**
* Private tracker for the current text.
*
* @member {string}
* @private
*/
_this._text = text;
/**
* The max width of this bitmap text in pixels. If the text provided is longer than the
* value provided, line breaks will be automatically inserted in the last whitespace.
* Disable by setting value to 0
*
* @member {number}
* @private
*/
_this._maxWidth = 0;
/**
* The max line height. This is useful when trying to use the total height of the Text,
* ie: when trying to vertically align.
*
* @member {number}
* @private
*/
_this._maxLineHeight = 0;
/**
* Text anchor. read-only
*
* @member {PIXI.ObservablePoint}
* @private
*/
_this._anchor = new _ObservablePoint2.default(function () {
_this.dirty = true;
}, _this, 0, 0);
/**
* The dirty state of this object.
*
* @member {boolean}
*/
_this.dirty = false;
_this.updateText();
return _this;
}
/**
* Renders text and updates it when needed
*
* @private
*/
BitmapText.prototype.updateText = function updateText() {
var data = BitmapText.fonts[this._font.name];
var scale = this._font.size / data.size;
var pos = new core.Point();
var chars = [];
var lineWidths = [];
var prevCharCode = null;
var lastLineWidth = 0;
var maxLineWidth = 0;
var line = 0;
var lastSpace = -1;
var lastSpaceWidth = 0;
var spacesRemoved = 0;
var maxLineHeight = 0;
for (var i = 0; i < this.text.length; i++) {
var charCode = this.text.charCodeAt(i);
if (/(\s)/.test(this.text.charAt(i))) {
lastSpace = i;
lastSpaceWidth = lastLineWidth;
}
if (/(?:\r\n|\r|\n)/.test(this.text.charAt(i))) {
lineWidths.push(lastLineWidth);
maxLineWidth = Math.max(maxLineWidth, lastLineWidth);
line++;
pos.x = 0;
pos.y += data.lineHeight;
prevCharCode = null;
continue;
}
if (lastSpace !== -1 && this._maxWidth > 0 && pos.x * scale > this._maxWidth) {
core.utils.removeItems(chars, lastSpace - spacesRemoved, i - lastSpace);
i = lastSpace;
lastSpace = -1;
++spacesRemoved;
lineWidths.push(lastSpaceWidth);
maxLineWidth = Math.max(maxLineWidth, lastSpaceWidth);
line++;
pos.x = 0;
pos.y += data.lineHeight;
prevCharCode = null;
continue;
}
var charData = data.chars[charCode];
if (!charData) {
continue;
}
if (prevCharCode && charData.kerning[prevCharCode]) {
pos.x += charData.kerning[prevCharCode];
}
chars.push({
texture: charData.texture,
line: line,
charCode: charCode,
position: new core.Point(pos.x + charData.xOffset, pos.y + charData.yOffset)
});
lastLineWidth = pos.x + (charData.texture.width + charData.xOffset);
pos.x += charData.xAdvance;
maxLineHeight = Math.max(maxLineHeight, charData.yOffset + charData.texture.height);
prevCharCode = charCode;
}
lineWidths.push(lastLineWidth);
maxLineWidth = Math.max(maxLineWidth, lastLineWidth);
var lineAlignOffsets = [];
for (var _i = 0; _i <= line; _i++) {
var alignOffset = 0;
if (this._font.align === 'right') {
alignOffset = maxLineWidth - lineWidths[_i];
} else if (this._font.align === 'center') {
alignOffset = (maxLineWidth - lineWidths[_i]) / 2;
}
lineAlignOffsets.push(alignOffset);
}
var lenChars = chars.length;
var tint = this.tint;
for (var _i2 = 0; _i2 < lenChars; _i2++) {
var c = this._glyphs[_i2]; // get the next glyph sprite
if (c) {
c.texture = chars[_i2].texture;
} else {
c = new core.Sprite(chars[_i2].texture);
this._glyphs.push(c);
}
c.position.x = (chars[_i2].position.x + lineAlignOffsets[chars[_i2].line]) * scale;
c.position.y = chars[_i2].position.y * scale;
c.scale.x = c.scale.y = scale;
c.tint = tint;
if (!c.parent) {
this.addChild(c);
}
}
// remove unnecessary children.
for (var _i3 = lenChars; _i3 < this._glyphs.length; ++_i3) {
this.removeChild(this._glyphs[_i3]);
}
this._textWidth = maxLineWidth * scale;
this._textHeight = (pos.y + data.lineHeight) * scale;
// apply anchor
if (this.anchor.x !== 0 || this.anchor.y !== 0) {
for (var _i4 = 0; _i4 < lenChars; _i4++) {
this._glyphs[_i4].x -= this._textWidth * this.anchor.x;
this._glyphs[_i4].y -= this._textHeight * this.anchor.y;
}
}
this._maxLineHeight = maxLineHeight * scale;
};
/**
* Updates the transform of this object
*
* @private
*/
BitmapText.prototype.updateTransform = function updateTransform() {
this.validate();
this.containerUpdateTransform();
};
/**
* Validates text before calling parent's getLocalBounds
*
* @return {PIXI.Rectangle} The rectangular bounding area
*/
BitmapText.prototype.getLocalBounds = function getLocalBounds() {
this.validate();
return _core$Container.prototype.getLocalBounds.call(this);
};
/**
* Updates text when needed
*
* @private
*/
BitmapText.prototype.validate = function validate() {
if (this.dirty) {
this.updateText();
this.dirty = false;
}
};
/**
* The tint of the BitmapText object
*
* @member {number}
*/
/**
* Register a bitmap font with data and a texture.
*
* @static
* @param {XMLDocument} xml - The XML document data.
* @param {PIXI.Texture} texture - Texture with all symbols.
* @return {Object} Result font object with font, size, lineHeight and char fields.
*/
BitmapText.registerFont = function registerFont(xml, texture) {
var data = {};
var info = xml.getElementsByTagName('info')[0];
var common = xml.getElementsByTagName('common')[0];
var res = texture.baseTexture.resolution || _settings2.default.RESOLUTION;
data.font = info.getAttribute('face');
data.size = parseInt(info.getAttribute('size'), 10);
data.lineHeight = parseInt(common.getAttribute('lineHeight'), 10) / res;
data.chars = {};
// parse letters
var letters = xml.getElementsByTagName('char');
for (var i = 0; i < letters.length; i++) {
var letter = letters[i];
var charCode = parseInt(letter.getAttribute('id'), 10);
var textureRect = new core.Rectangle(parseInt(letter.getAttribute('x'), 10) / res + texture.frame.x / res, parseInt(letter.getAttribute('y'), 10) / res + texture.frame.y / res, parseInt(letter.getAttribute('width'), 10) / res, parseInt(letter.getAttribute('height'), 10) / res);
data.chars[charCode] = {
xOffset: parseInt(letter.getAttribute('xoffset'), 10) / res,
yOffset: parseInt(letter.getAttribute('yoffset'), 10) / res,
xAdvance: parseInt(letter.getAttribute('xadvance'), 10) / res,
kerning: {},
texture: new core.Texture(texture.baseTexture, textureRect)
};
}
// parse kernings
var kernings = xml.getElementsByTagName('kerning');
for (var _i5 = 0; _i5 < kernings.length; _i5++) {
var kerning = kernings[_i5];
var first = parseInt(kerning.getAttribute('first'), 10) / res;
var second = parseInt(kerning.getAttribute('second'), 10) / res;
var amount = parseInt(kerning.getAttribute('amount'), 10) / res;
if (data.chars[second]) {
data.chars[second].kerning[first] = amount;
}
}
// I'm leaving this as a temporary fix so we can test the bitmap fonts in v3
// but it's very likely to change
BitmapText.fonts[data.font] = data;
return data;
};
_createClass(BitmapText, [{
key: 'tint',
get: function get() {
return this._font.tint;
},
set: function set(value) // eslint-disable-line require-jsdoc
{
this._font.tint = typeof value === 'number' && value >= 0 ? value : 0xFFFFFF;
this.dirty = true;
}
/**
* The alignment of the BitmapText object
*
* @member {string}
* @default 'left'
*/
}, {
key: 'align',
get: function get() {
return this._font.align;
},
set: function set(value) // eslint-disable-line require-jsdoc
{
this._font.align = value || 'left';
this.dirty = true;
}
/**
* The anchor sets the origin point of the text.
* The default is 0,0 this means the text's origin is the top left
* Setting the anchor to 0.5,0.5 means the text's origin is centered
* Setting the anchor to 1,1 would mean the text's origin point will be the bottom right corner
*
* @member {PIXI.Point | number}
*/
}, {
key: 'anchor',
get: function get() {
return this._anchor;
},
set: function set(value) // eslint-disable-line require-jsdoc
{
if (typeof value === 'number') {
this._anchor.set(value);
} else {
this._anchor.copy(value);
}
}
/**
* The font descriptor of the BitmapText object
*
* @member {string|object}
*/
}, {
key: 'font',
get: function get() {
return this._font;
},
set: function set(value) // eslint-disable-line require-jsdoc
{
if (!value) {
return;
}
if (typeof value === 'string') {
value = value.split(' ');
this._font.name = value.length === 1 ? value[0] : value.slice(1).join(' ');
this._font.size = value.length >= 2 ? parseInt(value[0], 10) : BitmapText.fonts[this._font.name].size;
} else {
this._font.name = value.name;
this._font.size = typeof value.size === 'number' ? value.size : parseInt(value.size, 10);
}
this.dirty = true;
}
/**
* The text of the BitmapText object
*
* @member {string}
*/
}, {
key: 'text',
get: function get() {
return this._text;
},
set: function set(value) // eslint-disable-line require-jsdoc
{
value = value.toString() || ' ';
if (this._text === value) {
return;
}
this._text = value;
this.dirty = true;
}
/**
* The max width of this bitmap text in pixels. If the text provided is longer than the
* value provided, line breaks will be automatically inserted in the last whitespace.
* Disable by setting value to 0
*
* @member {number}
*/
}, {
key: 'maxWidth',
get: function get() {
return this._maxWidth;
},
set: function set(value) // eslint-disable-line require-jsdoc
{
if (this._maxWidth === value) {
return;
}
this._maxWidth = value;
this.dirty = true;
}
/**
* The max line height. This is useful when trying to use the total height of the Text,
* ie: when trying to vertically align.
*
* @member {number}
* @readonly
*/
}, {
key: 'maxLineHeight',
get: function get() {
this.validate();
return this._maxLineHeight;
}
/**
* The width of the overall text, different from fontSize,
* which is defined in the style object
*
* @member {number}
* @readonly
*/
}, {
key: 'textWidth',
get: function get() {
this.validate();
return this._textWidth;
}
/**
* The height of the overall text, different from fontSize,
* which is defined in the style object
*
* @member {number}
* @readonly
*/
}, {
key: 'textHeight',
get: function get() {
this.validate();
return this._textHeight;
}
}]);
return BitmapText;
}(core.Container);
exports.default = BitmapText;
BitmapText.fonts = {};
//# sourceMappingURL=BitmapText.js.map
