Files
twitch-panels/src/components/TextPreview.svelte
T

116 lines
2.8 KiB
Svelte

<script lang="ts">
import { onMount } from "svelte";
import { browser } from "$app/environment";
import type { TextItem } from "../lib/types/panel";
import { panelStore } from "../stores/panelStore";
let {
textItem,
height,
}: {
textItem: TextItem;
height: number;
} = $props();
let Stage: any;
let Layer: any;
let Image: any;
let Text: any;
let bgImage: HTMLImageElement | undefined = $state(undefined);
let currentPanel = $state($panelStore);
onMount(async () => {
if (browser) {
const svelteKonva = await import("svelte-konva");
Stage = svelteKonva.Stage;
Layer = svelteKonva.Layer;
Image = svelteKonva.Image;
Text = svelteKonva.Text;
}
});
$effect(() => {
if (currentPanel?.backgroundImage) {
loadImage(currentPanel.backgroundImage);
}
});
function loadImage(src: string) {
const img = new Image();
img.onload = () => {
bgImage = img;
};
img.src = src;
}
// Вычисляем позицию текста на основе выравнивания и отступов
function getTextPosition() {
const panelWidth = 320;
const paddingX = textItem.paddingX || 0;
const verticalOffset = textItem.verticalOffset || 0;
const centerY = height / 2 + verticalOffset;
switch (textItem.textAlign) {
case "left":
return { x: paddingX, y: centerY };
case "right":
return { x: panelWidth - paddingX, y: centerY };
case "center":
default:
return { x: panelWidth / 2, y: centerY };
}
}
let textPosition = $derived(getTextPosition());
</script>
<div class="text-preview">
{#if Stage && bgImage}
<div class="canvas-container">
<Stage width={320} {height}>
<Layer>
<Image image={bgImage} width={320} {height} />
<Text
text={textItem.text}
fontSize={textItem.fontSize}
fill={textItem.color}
fontFamily={textItem.fontFamily}
x={textPosition.x}
y={textPosition.y}
align={textItem.textAlign}
width={320 - textItem.paddingX * 2}
offsetX={textItem.textAlign === "center" ? 0 : textItem.textAlign === "right" ? 0 : 0}
/>
</Layer>
</Stage>
</div>
{:else}
<div class="loading">Загрузка...</div>
{/if}
</div>
<style>
.text-preview {
display: flex;
flex-direction: column;
gap: 0.5rem;
}
.canvas-container {
display: flex;
justify-content: center;
padding: 1rem;
background: #f5f5f5;
border-radius: 8px;
border: 2px solid #e9ecef;
}
.loading {
text-align: center;
padding: 2rem;
color: #666;
background: #f9f9f9;
border-radius: 8px;
}
</style>