MirrorHub/atlas
0
0
Fork 0
mirror of https://github.com/placeAtlas/atlas.git synced 2024-06-10 15:29:33 +02:00
Code Issues Projects Releases Wiki Activity

Use fetched image size for the canvas

Browse source 
Backport from place-catalog
This commit is contained in:
Hans5958 2023-04-06 22:08:53 +07:00
parent b59c19315a
commit bd791662a1
1 changed files with 9 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
web/_js/main/time.js
View file

@ -101,6 +101,8 @@ async function updateBackground(newPeriod = currentPeriod, newVariation = curren
const configObject = variationConfig.versions[currentPeriod]
let layerUrls = []
let layers = []
if (typeof configObject.url === "string") {
layerUrls.push(configObject.url)
} else {
@ -108,19 +110,23 @@ async function updateBackground(newPeriod = currentPeriod, newVariation = curren
}
const canvas = document.createElement('canvas')
const context = canvas.getContext('2d')
context.canvas.width = canvasSize.x
context.canvas.height = canvasSize.y
for await (const url of layerUrls) {
const imageLayer = new Image()
await new Promise(resolve => {
imageLayer.onload = () => {
context.drawImage(imageLayer, 0, 0)
context.canvas.width = Math.max(imageLayer.width, context.canvas.width)
context.canvas.height = Math.max(imageLayer.height, context.canvas.height)
layers.push(imageLayer)
resolve()
}
imageLayer.src = url
})
}
for (const imageLayer of layers) {
context.drawImage(imageLayer, 0, 0)
}
if (currentUpdateIndex !== myUpdateIndex) return [configObject, newPeriod, newVariation]
const blob = await new Promise(resolve => canvas.toBlob(resolve))
canvasUrl = URL.createObjectURL(blob)