-
-
Notifications
You must be signed in to change notification settings - Fork 380
/
EyedropperPreview.svelte
133 lines (111 loc) · 3.6 KB
/
EyedropperPreview.svelte
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
<script lang="ts" context="module">
// Should be equal to the width and height of the zoom preview canvas in the CSS
const ZOOM_WINDOW_DIMENSIONS_EXPANDED = 110;
// Should be equal to the width and height of the `.pixel-outline` div in the CSS, and should be evenly divisible into the number above
const UPSCALE_FACTOR = 10;
export const ZOOM_WINDOW_DIMENSIONS = ZOOM_WINDOW_DIMENSIONS_EXPANDED / UPSCALE_FACTOR;
</script>
<script lang="ts">
import { onMount } from "svelte";
import FloatingMenu from "@graphite/components/layout/FloatingMenu.svelte";
const temporaryCanvas = document.createElement("canvas");
temporaryCanvas.width = ZOOM_WINDOW_DIMENSIONS;
temporaryCanvas.height = ZOOM_WINDOW_DIMENSIONS;
let zoomPreviewCanvas: HTMLCanvasElement | undefined;
export let imageData: ImageData | undefined = undefined;
export let colorChoice: string;
export let primaryColor: string;
export let secondaryColor: string;
export let x: number;
export let y: number;
$: displayImageDataPreview(imageData);
function displayImageDataPreview(imageData: ImageData | undefined) {
if (!zoomPreviewCanvas) return;
const context = zoomPreviewCanvas.getContext("2d");
const temporaryContext = temporaryCanvas.getContext("2d");
if (!imageData || !context || !temporaryContext) return;
temporaryContext.putImageData(imageData, 0, 0, 0, 0, ZOOM_WINDOW_DIMENSIONS, ZOOM_WINDOW_DIMENSIONS);
context.fillStyle = "black";
context.fillRect(0, 0, ZOOM_WINDOW_DIMENSIONS, ZOOM_WINDOW_DIMENSIONS);
context.drawImage(temporaryCanvas, 0, 0);
}
onMount(() => {
displayImageDataPreview(imageData);
});
</script>
<FloatingMenu
open={true}
class="eyedropper-preview"
type="Cursor"
styles={{ "--ring-color-primary": primaryColor, "--ring-color-secondary": secondaryColor, "--ring-color-choice": colorChoice, left: x + "px", top: y + "px" }}
>
<div class="ring">
<div class="canvas-container">
<canvas width={ZOOM_WINDOW_DIMENSIONS} height={ZOOM_WINDOW_DIMENSIONS} bind:this={zoomPreviewCanvas} />
<div class="pixel-outline" />
</div>
</div>
</FloatingMenu>
<style lang="scss" global>
.eyedropper-preview {
pointer-events: none;
.ring {
transform: translate(0, -50%) rotate(45deg);
position: relative;
background: var(--ring-color-choice);
padding: 16px;
border: 8px solid;
border-radius: 50%;
border-top-color: var(--ring-color-primary);
border-left-color: var(--ring-color-primary);
border-bottom-color: var(--ring-color-secondary);
border-right-color: var(--ring-color-secondary);
&::after {
content: "";
position: absolute;
width: 100%;
height: 100%;
top: -8px;
left: -8px;
padding: 8px;
border-radius: 50%;
box-shadow:
0 0 0 1px rgba(255, 255, 255, 0.5),
0 0 8px rgba(0, 0, 0, 0.25);
}
.canvas-container {
transform: rotate(-45deg);
canvas {
display: block;
width: 110px;
height: 110px;
border-radius: 50%;
image-rendering: pixelated;
}
&::after {
content: "";
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
border-radius: 50%;
box-shadow:
inset 0 0 0 1px rgba(255, 255, 255, 0.5),
inset 0 0 8px rgba(0, 0, 0, 0.25);
}
.pixel-outline {
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
--outline-width: 2;
margin-top: calc(-1px * (var(--outline-width) / 2));
width: calc(10px - (var(--outline-width) * 1px));
height: calc(10px - var(--outline-width) * 1px);
border: calc(var(--outline-width) * 1px) solid var(--color-0-black);
}
}
}
}
</style>