konva
Version:
<p align="center"> <img src="https://konvajs.org/android-chrome-192x192.png" alt="Konva logo" height="180" /> </p>
179 lines (178 loc) • 6.59 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.Tag = exports.Label = void 0;
const Factory_1 = require("../Factory");
const Shape_1 = require("../Shape");
const Group_1 = require("../Group");
const Validators_1 = require("../Validators");
const Global_1 = require("../Global");
var ATTR_CHANGE_LIST = [
'fontFamily',
'fontSize',
'fontStyle',
'padding',
'lineHeight',
'text',
'width',
'height',
'pointerDirection',
'pointerWidth',
'pointerHeight',
], CHANGE_KONVA = 'Change.konva', NONE = 'none', UP = 'up', RIGHT = 'right', DOWN = 'down', LEFT = 'left', attrChangeListLen = ATTR_CHANGE_LIST.length;
class Label extends Group_1.Group {
constructor(config) {
super(config);
this.on('add.konva', function (evt) {
this._addListeners(evt.child);
this._sync();
});
}
getText() {
return this.find('Text')[0];
}
getTag() {
return this.find('Tag')[0];
}
_addListeners(text) {
var that = this, n;
var func = function () {
that._sync();
};
for (n = 0; n < attrChangeListLen; n++) {
text.on(ATTR_CHANGE_LIST[n] + CHANGE_KONVA, func);
}
}
getWidth() {
return this.getText().width();
}
getHeight() {
return this.getText().height();
}
_sync() {
var text = this.getText(), tag = this.getTag(), width, height, pointerDirection, pointerWidth, x, y, pointerHeight;
if (text && tag) {
width = text.width();
height = text.height();
pointerDirection = tag.pointerDirection();
pointerWidth = tag.pointerWidth();
pointerHeight = tag.pointerHeight();
x = 0;
y = 0;
switch (pointerDirection) {
case UP:
x = width / 2;
y = -1 * pointerHeight;
break;
case RIGHT:
x = width + pointerWidth;
y = height / 2;
break;
case DOWN:
x = width / 2;
y = height + pointerHeight;
break;
case LEFT:
x = -1 * pointerWidth;
y = height / 2;
break;
}
tag.setAttrs({
x: -1 * x,
y: -1 * y,
width: width,
height: height,
});
text.setAttrs({
x: -1 * x,
y: -1 * y,
});
}
}
}
exports.Label = Label;
Label.prototype.className = 'Label';
(0, Global_1._registerNode)(Label);
class Tag extends Shape_1.Shape {
_sceneFunc(context) {
var width = this.width(), height = this.height(), pointerDirection = this.pointerDirection(), pointerWidth = this.pointerWidth(), pointerHeight = this.pointerHeight(), cornerRadius = this.cornerRadius();
let topLeft = 0;
let topRight = 0;
let bottomLeft = 0;
let bottomRight = 0;
if (typeof cornerRadius === 'number') {
topLeft =
topRight =
bottomLeft =
bottomRight =
Math.min(cornerRadius, width / 2, height / 2);
}
else {
topLeft = Math.min(cornerRadius[0] || 0, width / 2, height / 2);
topRight = Math.min(cornerRadius[1] || 0, width / 2, height / 2);
bottomRight = Math.min(cornerRadius[2] || 0, width / 2, height / 2);
bottomLeft = Math.min(cornerRadius[3] || 0, width / 2, height / 2);
}
context.beginPath();
context.moveTo(topLeft, 0);
if (pointerDirection === UP) {
context.lineTo((width - pointerWidth) / 2, 0);
context.lineTo(width / 2, -1 * pointerHeight);
context.lineTo((width + pointerWidth) / 2, 0);
}
context.lineTo(width - topRight, 0);
context.arc(width - topRight, topRight, topRight, (Math.PI * 3) / 2, 0, false);
if (pointerDirection === RIGHT) {
context.lineTo(width, (height - pointerHeight) / 2);
context.lineTo(width + pointerWidth, height / 2);
context.lineTo(width, (height + pointerHeight) / 2);
}
context.lineTo(width, height - bottomRight);
context.arc(width - bottomRight, height - bottomRight, bottomRight, 0, Math.PI / 2, false);
if (pointerDirection === DOWN) {
context.lineTo((width + pointerWidth) / 2, height);
context.lineTo(width / 2, height + pointerHeight);
context.lineTo((width - pointerWidth) / 2, height);
}
context.lineTo(bottomLeft, height);
context.arc(bottomLeft, height - bottomLeft, bottomLeft, Math.PI / 2, Math.PI, false);
if (pointerDirection === LEFT) {
context.lineTo(0, (height + pointerHeight) / 2);
context.lineTo(-1 * pointerWidth, height / 2);
context.lineTo(0, (height - pointerHeight) / 2);
}
context.lineTo(0, topLeft);
context.arc(topLeft, topLeft, topLeft, Math.PI, (Math.PI * 3) / 2, false);
context.closePath();
context.fillStrokeShape(this);
}
getSelfRect() {
var x = 0, y = 0, pointerWidth = this.pointerWidth(), pointerHeight = this.pointerHeight(), direction = this.pointerDirection(), width = this.width(), height = this.height();
if (direction === UP) {
y -= pointerHeight;
height += pointerHeight;
}
else if (direction === DOWN) {
height += pointerHeight;
}
else if (direction === LEFT) {
x -= pointerWidth * 1.5;
width += pointerWidth;
}
else if (direction === RIGHT) {
width += pointerWidth * 1.5;
}
return {
x: x,
y: y,
width: width,
height: height,
};
}
}
exports.Tag = Tag;
Tag.prototype.className = 'Tag';
(0, Global_1._registerNode)(Tag);
Factory_1.Factory.addGetterSetter(Tag, 'pointerDirection', NONE);
Factory_1.Factory.addGetterSetter(Tag, 'pointerWidth', 0, (0, Validators_1.getNumberValidator)());
Factory_1.Factory.addGetterSetter(Tag, 'pointerHeight', 0, (0, Validators_1.getNumberValidator)());
Factory_1.Factory.addGetterSetter(Tag, 'cornerRadius', 0, (0, Validators_1.getNumberOrArrayOfNumbersValidator)(4));