1 | |
2 | /* |
3 | Copyright - 2017 2023 - wwwouaiebe - Contact: https://www.ouaie.be/ |
4 | |
5 | This program is free software; |
6 | you can redistribute it and/or modify it under the terms of the |
7 | GNU General Public License as published by the Free Software Foundation; |
8 | either version 3 of the License, or any later version. |
9 | |
10 | This program is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | GNU General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU General Public License |
16 | along with this program; if not, write to the Free Software |
17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
18 | */ |
19 | /* |
20 | Changes: |
21 | - v4.0.0: |
22 | - created from v3.6.0 |
23 | Doc reviewed 202208 |
24 | */ |
25 | |
26 | /* ------------------------------------------------------------------------------------------------------------------------- */ |
27 | /** |
28 | Input event listener for the red slider |
29 | */ |
30 | /* ------------------------------------------------------------------------------------------------------------------------- */ |
31 | |
32 | class RedSliderInputEL { |
33 | |
34 | /** |
35 | A reference to the ColorControl object |
36 | @type {ColorControl} |
37 | */ |
38 | |
39 | #colorControl; |
40 | |
41 | /** |
42 | A coefficient to use to transform the slider value into a color value |
43 | Slider value are from 0 to RedSliderControlElement.SLIDER_MAX_VALUE, Color values are from 0 to Color.MAX_COLOR |
44 | @type {Number} |
45 | */ |
46 | |
47 | #colorCoef; |
48 | |
49 | /** |
50 | The constructor |
51 | @param {ColorControl} colorControl A reference to the ColorControl object |
52 | @param {Number} colorCoef A coefficient to use to transform the slider value into a color value |
53 | */ |
54 | |
55 | constructor ( colorControl, colorCoef ) { |
56 | Object.freeze ( this ); |
57 | this.#colorControl = colorControl; |
58 | this.#colorCoef = colorCoef; |
59 | } |
60 | |
61 | /** |
62 | Event listener |
63 | @param {Event} inputEvent The event to handle |
64 | */ |
65 | |
66 | handleEvent ( inputEvent ) { |
67 | inputEvent.stopPropagation ( ); |
68 | |
69 | let red = inputEvent.target.valueAsNumber * this.#colorCoef; |
70 | |
71 | // With js 100 * 2.55 = 254.99999999 |
72 | red = red - Math.floor ( red ) < Math.ceil ( red ) - red |
73 | ? |
74 | Math.floor ( red ) |
75 | : |
76 | Math.ceil ( red ); |
77 | |
78 | this.#colorControl.onRedSliderInput ( red ); |
79 | } |
80 | } |
81 | |
82 | export default RedSliderInputEL; |
83 | |
84 | /* --- End of file --------------------------------------------------------------------------------------------------------- */ |
85 |