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@@ 1326-1346 (lines=21) @@
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* @param int $maxHeight Hauteur maximum souhaitée |
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* @return array Liste [ largeur, hauteur, ratio de réduction ] |
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**/ |
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function _image_ratio($srcWidth, $srcHeight, $maxWidth, $maxHeight) { |
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$ratioWidth = $srcWidth / $maxWidth; |
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$ratioHeight = $srcHeight / $maxHeight; |
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if ($ratioWidth <= 1 and $ratioHeight <= 1) { |
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$destWidth = $srcWidth; |
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$destHeight = $srcHeight; |
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} elseif ($ratioWidth < $ratioHeight) { |
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$destWidth = $srcWidth / $ratioHeight; |
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$destHeight = $maxHeight; |
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} else { |
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$destWidth = $maxWidth; |
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$destHeight = $srcHeight / $ratioWidth; |
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} |
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return array( |
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ceil($destWidth), |
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ceil($destHeight), |
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max($ratioWidth, $ratioHeight) |
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); |
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} |
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/** |
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* Réduire des dimensions en respectant un ratio sur la plus petite dimension |
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@@ 1364-1384 (lines=21) @@
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* @param int $maxHeight Hauteur maximum souhaitée |
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* @return array Liste [ largeur, hauteur, ratio de réduction ] |
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**/ |
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function ratio_passe_partout($srcWidth, $srcHeight, $maxWidth, $maxHeight) { |
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$ratioWidth = $srcWidth / $maxWidth; |
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$ratioHeight = $srcHeight / $maxHeight; |
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if ($ratioWidth <= 1 and $ratioHeight <= 1) { |
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$destWidth = $srcWidth; |
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$destHeight = $srcHeight; |
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} elseif ($ratioWidth > $ratioHeight) { |
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$destWidth = $srcWidth / $ratioHeight; |
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$destHeight = $maxHeight; |
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} else { |
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$destWidth = $maxWidth; |
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$destHeight = $srcHeight / $ratioWidth; |
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} |
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return array( |
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ceil($destWidth), |
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ceil($destHeight), |
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min($ratioWidth, $ratioHeight) |
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); |
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} |
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/** |
spip /
SPIP
