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Original file line number | Diff line number | Diff line change |
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@@ -1,27 +1,69 @@ | ||
const minHorizontalGapPercentage = 0.3; | ||
const verticalGapPercentage = 0.3; | ||
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const bestHorizontalFit = (windowWidth, objectWidth) => { | ||
let columns = 1; | ||
let percentage = | ||
(windowWidth - columns * objectWidth) / (objectWidth * (1 + columns)); | ||
let prevPercentage = percentage; | ||
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while (percentage >= minHorizontalGapPercentage) { | ||
prevPercentage = percentage; | ||
columns += 1; | ||
percentage = | ||
(windowWidth - columns * objectWidth) / (objectWidth * (1 + columns)); | ||
} | ||
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return [columns - 1, prevPercentage]; | ||
}; | ||
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export function listView(collection) { | ||
const width = window.innerWidth; | ||
const length = collection.length; | ||
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const gap = 1; | ||
const objWidth = collection[0].width; | ||
const objHorizontalGap = gap * objWidth; | ||
const objHeight = collection[0].height; | ||
const objVerticalGap = gap * objHeight; | ||
const objVerticalGap = parseInt(verticalGapPercentage * objHeight); | ||
const objWidth = collection[0].width; | ||
const [cols, horizontalGapPercentage] = bestHorizontalFit(width, objWidth); | ||
const objHorizontalGap = parseInt(horizontalGapPercentage * objWidth); | ||
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const cols = Math.ceil(width / (objWidth + objHorizontalGap)); | ||
const rows = Math.ceil(collection.length / cols); | ||
const rows = Math.ceil(length / cols); | ||
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const height = rows * (objHeight + objVerticalGap / 2) + objVerticalGap / 2; | ||
const height = rows * (objHeight + objVerticalGap) + objVerticalGap; | ||
const finalHeight = height > window.innerHeight ? height : window.innerHeight; | ||
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for (let i = 0; i < collection.length; i++) { | ||
const x = (i % cols) * objWidth + (((i % cols) + 1) * objHorizontalGap) / 2; | ||
const y = | ||
Math.floor(i / cols) * objHeight + | ||
((Math.floor(i / cols) + 1) * objVerticalGap) / 2; | ||
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collection[i].x = x; | ||
collection[i].y = y; | ||
const allX = []; | ||
for (let i = 1; i <= cols; i++) { | ||
allX.push(i * objHorizontalGap + (i - 1) * objWidth); | ||
} | ||
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const maxLength = rows * cols; | ||
const halfCols = Math.ceil(cols / 2); | ||
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collection.forEach((object, index) => { | ||
const numElement = index + 1; | ||
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const objRow = Math.ceil(numElement / cols); | ||
let objCol; | ||
const res = numElement % cols; | ||
if (res === 0) { | ||
objCol = cols; | ||
} else { | ||
objCol = res; | ||
} | ||
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const rowLength = | ||
maxLength - numElement >= cols ? cols : length - cols * (rows - 1); | ||
const halfCol = Math.ceil(rowLength / 2); | ||
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const allXIndex = halfCols - (halfCol - objCol); | ||
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const x = allX[allXIndex - 1]; | ||
const y = objRow * objVerticalGap + (objRow - 1) * objHeight; | ||
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object.x = x; | ||
object.y = y; | ||
}); | ||
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return [width, finalHeight]; | ||
} |
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