From 5a6298548b194e0987cdccc8a11b04efa8c9fd61 Mon Sep 17 00:00:00 2001
From: rvelices <rv-github@modusoptimus.com>
Date: Wed, 20 Aug 2008 00:35:22 +0000
Subject: - local.lang is loaded without fallback on default language or
 PHPWG_DEFAULT_LANGUAGE (needed to change the signature of load_language which
 became a little too big) - move a function from functions.inc.php to
 functions_picture.inc.php (included only when necessary) - removed some css
 (not as much as I wanted)

git-svn-id: http://piwigo.org/svn/trunk@2479 68402e56-0260-453c-a942-63ccdbb3a9ee
---
 include/functions_picture.inc.php | 56 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

(limited to 'include/functions_picture.inc.php')

diff --git a/include/functions_picture.inc.php b/include/functions_picture.inc.php
index 1b6403ff3..d1c430fde 100644
--- a/include/functions_picture.inc.php
+++ b/include/functions_picture.inc.php
@@ -327,4 +327,60 @@ function encode_slideshow_params($decode_params = array())
   return $result;
 }
 
+// The get_picture_size function return an array containing :
+//      - $picture_size[0] : final width
+//      - $picture_size[1] : final height
+// The final dimensions are calculated thanks to the original dimensions and
+// the maximum dimensions given in parameters.  get_picture_size respects
+// the width/height ratio
+function get_picture_size( $original_width, $original_height,
+                           $max_width, $max_height )
+{
+  $width = $original_width;
+  $height = $original_height;
+  $is_original_size = true;
+
+  if ( $max_width != "" )
+  {
+    if ( $original_width > $max_width )
+    {
+      $width = $max_width;
+      $height = floor( ( $width * $original_height ) / $original_width );
+    }
+  }
+  if ( $max_height != "" )
+  {
+    if ( $original_height > $max_height )
+    {
+      $height = $max_height;
+      $width = floor( ( $height * $original_width ) / $original_height );
+      $is_original_size = false;
+    }
+  }
+  if ( is_numeric( $max_width ) and is_numeric( $max_height )
+       and $max_width != 0 and $max_height != 0 )
+  {
+    $ratioWidth = $original_width / $max_width;
+    $ratioHeight = $original_height / $max_height;
+    if ( ( $ratioWidth > 1 ) or ( $ratioHeight > 1 ) )
+    {
+      if ( $ratioWidth < $ratioHeight )
+      {
+        $width = floor( $original_width / $ratioHeight );
+        $height = $max_height;
+      }
+      else
+      {
+        $width = $max_width;
+        $height = floor( $original_height / $ratioWidth );
+      }
+      $is_original_size = false;
+    }
+  }
+  $picture_size = array();
+  $picture_size[0] = $width;
+  $picture_size[1] = $height;
+  return $picture_size;
+}
+
 ?>
-- 
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