mirror of
https://github.com/openvk/openvk
synced 2024-12-26 18:42:37 +03:00
fab39bd7fd
* Chopin - Полностью переписана та часть где про источник поста - Исправлен метод video.search - Сокращено число запросов в БД у шаблона поста - Удалена ссылка на прикреплятор заметок потому что low quality - Исправлен баг с прикреплённой заметкой в api, но только если ты указал версию. - Исправлены проблемы с кешированными спрайтшитами * Chopin 2
305 lines
14 KiB
PHP
305 lines
14 KiB
PHP
<?php declare(strict_types=1);
|
||
namespace openvk\Web\Util\Makima;
|
||
use openvk\Web\Models\Entities\Photo;
|
||
|
||
class Makima
|
||
{
|
||
private $photos;
|
||
|
||
const ORIENT_WIDE = 0;
|
||
const ORIENT_REGULAR = 1;
|
||
const ORIENT_SLIM = 2;
|
||
|
||
function __construct(array $photos)
|
||
{
|
||
if(sizeof($photos) < 2)
|
||
throw new \LogicException("Minimum attachment count for tiled layout is 2");
|
||
|
||
$this->photos = $photos;
|
||
}
|
||
|
||
private function getOrientation(Photo $photo, &$ratio): int
|
||
{
|
||
[$width, $height] = $photo->getDimensions();
|
||
$ratio = $width / $height;
|
||
if($ratio >= 1.2)
|
||
return Makima::ORIENT_WIDE;
|
||
else if($ratio >= 0.8)
|
||
return Makima::ORIENT_REGULAR;
|
||
else
|
||
return Makima::ORIENT_SLIM;
|
||
}
|
||
|
||
private function calculateMultiThumbsHeight(array $ratios, float $w, float $m): float
|
||
{
|
||
return ($w - (sizeof($ratios) - 1) * $m) / array_sum($ratios);
|
||
}
|
||
|
||
private function extractSubArr(array $arr, int $from, int $to): array
|
||
{
|
||
return array_slice($arr, $from, sizeof($arr) - $from - (sizeof($arr) - $to));
|
||
}
|
||
|
||
function computeMasonryLayout(float $maxWidth, float $maxHeight): MasonryLayout
|
||
{
|
||
$orients = [];
|
||
$ratios = [];
|
||
$count = sizeof($this->photos);
|
||
$result = new MasonryLayout;
|
||
|
||
foreach($this->photos as $photo) {
|
||
$orients[] = $this->getOrientation($photo, $ratio);
|
||
$ratios[] = $ratio;
|
||
}
|
||
|
||
$avgRatio = array_sum($ratios) / sizeof($ratios);
|
||
if($maxWidth < 0)
|
||
$maxWidth = $maxHeight = 510;
|
||
|
||
$maxRatio = $maxWidth / $maxHeight;
|
||
$marginWidth = $marginHeight = 2;
|
||
|
||
switch($count) {
|
||
case 2:
|
||
if(
|
||
$orients == [Makima::ORIENT_WIDE, Makima::ORIENT_WIDE] # two wide pics
|
||
&& $avgRatio > (1.4 * $maxRatio) && abs($ratios[0] - $ratios[1]) < 0.2 # that can be positioned on top of each other
|
||
) {
|
||
$computedHeight = ceil( min( $maxWidth / $ratios[0], min( $maxWidth / $ratios[1], ($maxHeight - $marginHeight) / 2 ) ) );
|
||
|
||
$result->colSizes = [1];
|
||
$result->rowSizes = [1, 1];
|
||
$result->width = ceil($maxWidth);
|
||
$result->height = $computedHeight * 2;
|
||
$result->tiles = [new ThumbTile(1, 1, $maxWidth, $computedHeight), new ThumbTile(1, 1, $maxWidth, $computedHeight)];
|
||
} else if(
|
||
$orients == [Makima::ORIENT_WIDE, Makima::ORIENT_WIDE]
|
||
|| $orients == [Makima::ORIENT_REGULAR, Makima::ORIENT_REGULAR] # two normal pics of same ratio
|
||
) {
|
||
$computedWidth = ($maxWidth - $marginWidth) / 2;
|
||
$height = min( $computedWidth / $ratios[0], min( $computedWidth / $ratios[1], $maxHeight ) );
|
||
|
||
$result->colSizes = [1, 1];
|
||
$result->rowSizes = [1];
|
||
$result->width = ceil($maxWidth);
|
||
$result->height = ceil($height);
|
||
$result->tiles = [new ThumbTile(1, 1, $computedWidth, $height), new ThumbTile(1, 1, $computedWidth, $height)];
|
||
} else /* next to each other, different ratios */ {
|
||
$w0 = (
|
||
($maxWidth - $marginWidth) / $ratios[1] / ( (1 / $ratios[0]) + (1 / $ratios[1]) )
|
||
);
|
||
$w1 = $maxWidth - $w0 - $marginWidth;
|
||
$h = min($maxHeight, min($w0 / $ratios[0], $w1 / $ratios[1]));
|
||
|
||
$result->colSizes = [ceil($w0), ceil($w1)];
|
||
$result->rowSizes = [1];
|
||
$result->width = ceil($w0 + $w1 + $marginWidth);
|
||
$result->height = ceil($h);
|
||
$result->tiles = [new ThumbTile(1, 1, $w0, $h), new ThumbTile(1, 1, $w1, $h)];
|
||
}
|
||
break;
|
||
case 3:
|
||
# Three wide photos, we will put two of them below and one on top
|
||
if($orients == [Makima::ORIENT_WIDE, Makima::ORIENT_WIDE, Makima::ORIENT_WIDE]) {
|
||
$hCover = min($maxWidth / $ratios[0], ($maxHeight - $marginHeight) * (2 / 3));
|
||
$w2 = ($maxWidth - $marginWidth) / 2;
|
||
$h = min($maxHeight - $hCover - $marginHeight, min($w2 / $ratios[1], $w2 / $ratios[2]));
|
||
|
||
$result->colSizes = [1, 1];
|
||
$result->rowSizes = [ceil($hCover), ceil($h)];
|
||
$result->width = ceil($maxWidth);
|
||
$result->height = ceil($marginHeight + $hCover + $h);
|
||
$result->tiles = [
|
||
new ThumbTile(2, 1, $maxWidth, $hCover),
|
||
new ThumbTile(1, 1, $w2, $h), new ThumbTile(1, 1, $w2, $h),
|
||
];
|
||
} else /* Photos have different sizes or are not wide, so we will put one to left and two to the right */ {
|
||
$wCover = min($maxHeight * $ratios[0], ($maxWidth - $marginWidth) * (3 / 4));
|
||
$h1 = ($ratios[1] * ($maxHeight - $marginHeight) / ($ratios[2] + $ratios[1]));
|
||
$h0 = $maxHeight - $marginHeight - $h1;
|
||
$w = min($maxWidth - $marginWidth - $wCover, min($h1 * $ratios[2], $h0 * $ratios[1]));
|
||
|
||
$result->colSizes = [ceil($wCover), ceil($w)];
|
||
$result->rowSizes = [ceil($h0), ceil($h1)];
|
||
$result->width = ceil($w + $wCover + $marginWidth);
|
||
$result->height = ceil($maxHeight);
|
||
$result->tiles = [
|
||
new ThumbTile(1, 2, $wCover, $maxHeight), new ThumbTile(1, 1, $w, $h0),
|
||
new ThumbTile(1, 1, $w, $h1),
|
||
];
|
||
}
|
||
break;
|
||
case 4:
|
||
# Four wide photos, we will put one to the top and rest below
|
||
if($orients == [Makima::ORIENT_WIDE, Makima::ORIENT_WIDE, Makima::ORIENT_WIDE, Makima::ORIENT_WIDE]) {
|
||
$hCover = min($maxWidth / $ratios[0], ($maxHeight - $marginHeight) / (2 / 3));
|
||
$h = ($maxWidth - 2 * $marginWidth) / (array_sum($ratios) - $ratios[0]);
|
||
$w0 = $h * $ratios[1];
|
||
$w1 = $h * $ratios[2];
|
||
$w2 = $h * $ratios[3];
|
||
$h = min($maxHeight - $marginHeight - $hCover, $h);
|
||
|
||
$result->colSizes = [ceil($w0), ceil($w1), ceil($w2)];
|
||
$result->rowSizes = [ceil($hCover), ceil($h)];
|
||
$result->width = ceil($maxWidth);
|
||
$result->height = ceil($hCover + $marginHeight + $h);
|
||
$result->tiles = [
|
||
new ThumbTile(3, 1, $maxWidth, $hCover),
|
||
new ThumbTile(1, 1, $w0, $h), new ThumbTile(1, 1, $w1, $h), new ThumbTile(1, 1, $w2, $h),
|
||
];
|
||
} else /* Four photos, we will put one to the left and rest to the right */ {
|
||
$wCover = min($maxHeight * $ratios[0], ($maxWidth - $marginWidth) * (2 / 3));
|
||
$w = ($maxHeight - 2 * $marginHeight) / (1 / $ratios[1] + 1 / $ratios[2] + 1 / $ratios[3]);
|
||
$h0 = $w / $ratios[1];
|
||
$h1 = $w / $ratios[2];
|
||
$h2 = $w / $ratios[3] + $marginHeight;
|
||
$w = min($w, $maxWidth - $marginWidth - $wCover);
|
||
|
||
$result->colSizes = [ceil($wCover), ceil($w)];
|
||
$result->rowSizes = [ceil($h0), ceil($h1), ceil($h2)];
|
||
$result->width = ceil($wCover + $marginWidth + $w);
|
||
$result->height = ceil($maxHeight);
|
||
$result->tiles = [
|
||
new ThumbTile(1, 3, $wCover, $maxHeight), new ThumbTile(1, 1, $w, $h0),
|
||
new ThumbTile(1, 1, $w, $h1),
|
||
new ThumbTile(1, 1, $w, $h2),
|
||
];
|
||
}
|
||
break;
|
||
default:
|
||
// как лопать пузырики
|
||
$ratiosCropped = [];
|
||
if($avgRatio > 1.1) {
|
||
foreach($ratios as $ratio)
|
||
$ratiosCropped[] = max($ratio, 1.0);
|
||
} else {
|
||
foreach($ratios as $ratio)
|
||
$ratiosCropped[] = min($ratio, 1.0);
|
||
}
|
||
|
||
$tries = [];
|
||
|
||
$firstLine;
|
||
$secondLine;
|
||
$thirdLine;
|
||
|
||
# Try one line:
|
||
$tries[$firstLine = $count] = [$this->calculateMultiThumbsHeight($ratiosCropped, $maxWidth, $marginWidth)];
|
||
|
||
# Try two lines:
|
||
for($firstLine = 1; $firstLine < ($count - 1); $firstLine++) {
|
||
$secondLine = $count - $firstLine;
|
||
$key = "$firstLine&$secondLine";
|
||
$tries[$key] = [
|
||
$this->calculateMultiThumbsHeight(array_slice($ratiosCropped, 0, $firstLine), $maxWidth, $marginWidth),
|
||
$this->calculateMultiThumbsHeight(array_slice($ratiosCropped, $firstLine), $maxWidth, $marginWidth),
|
||
];
|
||
}
|
||
|
||
# Try three lines:
|
||
for($firstLine = 1; $firstLine < ($count - 2); $firstLine++) {
|
||
for($secondLine = 1; $secondLine < ($count - $firstLine - 1); $secondLine++) {
|
||
$thirdLine = $count - $firstLine - $secondLine;
|
||
$key = "$firstLine&$secondLine&$thirdLine";
|
||
$tries[$key] = [
|
||
$this->calculateMultiThumbsHeight(array_slice($ratiosCropped, 0, $firstLine), $maxWidth, $marginWidth),
|
||
$this->calculateMultiThumbsHeight($this->extractSubArr($ratiosCropped, $firstLine, $firstLine + $secondLine), $maxWidth, $marginWidth),
|
||
$this->calculateMultiThumbsHeight($this->extractSubArr($ratiosCropped, $firstLine + $secondLine, sizeof($ratiosCropped)), $maxWidth, $marginWidth),
|
||
];
|
||
}
|
||
}
|
||
|
||
# Now let's find the most optimal configuration:
|
||
$optimalConfiguration = $optimalDifference = NULL;
|
||
foreach($tries as $config => $heights) {
|
||
$config = explode('&', (string) $config); # да да стринговые ключи пхп даже со стриктайпами автокастует к инту (см. 187)
|
||
$confH = $marginHeight * (sizeof($heights) - 1);
|
||
foreach($heights as $h)
|
||
$confH += $h;
|
||
|
||
$confDiff = abs($confH - $maxHeight);
|
||
if(sizeof($config) > 1)
|
||
if($config[0] > $config[1] || sizeof($config) >= 2 && $config[1] > $config[2])
|
||
$confDiff *= 1.1;
|
||
|
||
if(!$optimalConfiguration || $confDigff < $optimalDifference) {
|
||
$optimalConfiguration = $config;
|
||
$optimalDifference = $confDiff;
|
||
}
|
||
}
|
||
|
||
$thumbsRemain = $this->photos;
|
||
$ratiosRemain = $ratiosCropped;
|
||
$optHeights = $tries[implode('&', $optimalConfiguration)];
|
||
$k = 0;
|
||
|
||
$result->width = ceil($maxWidth);
|
||
$result->rowSizes = [sizeof($optHeights)];
|
||
$result->tiles = [];
|
||
|
||
$totalHeight = 0.0;
|
||
$gridLineOffsets = [];
|
||
$rowTiles = []; // vector<vector<ThumbTile>>
|
||
|
||
for($i = 0; $i < sizeof($optimalConfiguration); $i++) {
|
||
$lineChunksNum = $optimalConfiguration[$i];
|
||
$lineThumbs = [];
|
||
for($j = 0; $j < $lineChunksNum; $j++)
|
||
$lineThumbs[] = array_shift($thumbsRemain);
|
||
|
||
$lineHeight = $optHeights[$i];
|
||
$totalHeight += $lineHeight;
|
||
|
||
$result->rowSizes[$i] = ceil($lineHeight);
|
||
|
||
$totalWidth = 0;
|
||
$row = [];
|
||
for($j = 0; $j < sizeof($lineThumbs); $j++) {
|
||
$thumbRatio = array_shift($ratiosRemain);
|
||
if($j == sizeof($lineThumbs) - 1)
|
||
$w = $maxWidth - $totalWidth;
|
||
else
|
||
$w = $thumbRatio * $lineHeight;
|
||
|
||
$totalWidth += ceil($w);
|
||
if($j < (sizeof($lineThumbs) - 1) && !in_array($totalWidth, $gridLineOffsets))
|
||
$gridLineOffsets[] = $totalWidth;
|
||
|
||
$tile = new ThumbTile(1, 1, $w, $lineHeight);
|
||
$result->tiles[$k++] = $row[] = $tile;
|
||
}
|
||
|
||
$rowTiles[] = $row;
|
||
}
|
||
|
||
sort($gridLineOffsets, SORT_NUMERIC);
|
||
$gridLineOffsets[] = $maxWidth;
|
||
|
||
$result->colSizes = [$gridLineOffsets[0]];
|
||
for($i = sizeof($gridLineOffsets) - 1; $i > 0; $i--)
|
||
$result->colSizes[$i] = $gridLineOffsets[$i] - $gridLineOffsets[$i - 1];
|
||
|
||
foreach($rowTiles as $row) {
|
||
$columnOffset = 0;
|
||
foreach($row as $tile) {
|
||
$startColumn = $columnOffset;
|
||
$width = 0;
|
||
$tile->colSpan = 0;
|
||
for($i = $startColumn; $i < sizeof($result->colSizes); $i++) {
|
||
$width += $result->colSizes[$i];
|
||
$tile->colSpan++;
|
||
if($width == $tile->width)
|
||
break;
|
||
}
|
||
|
||
$columnOffset += $tile->colSpan;
|
||
}
|
||
}
|
||
|
||
$result->height = ceil($totalHeight + $marginHeight * (sizeof($optHeights) - 1));
|
||
break;
|
||
}
|
||
|
||
return $result;
|
||
}
|
||
}
|