If you want resize your image to a given measure (long side or short side) regardingless the image orientation. (resizeToLongSide and resizeToShortSide)

Author: erigoni

lib/ImageResize.php

@@ -281,14 +281,14 @@ public function resizeToShortSide($max_short, $allow_enlarge = false)
     {
         if ($this->getSourceHeight() < $this->getSourceWidth()) {
             $ratio = $max_short / $this->getSourceHeight();
-            $width = $this->getSourceWidth() * $ratio;
+            $long = $this->getSourceWidth() * $ratio;
 
-            $this->resize($width, $max_short, $allow_enlarge);
+            $this->resize($long, $max_short, $allow_enlarge);
         } else {
             $ratio = $max_short / $this->getSourceWidth();
-            $width = $this->getSourceHeight() * $ratio;
+            $long = $this->getSourceHeight() * $ratio;
 
-            $this->resize($width, $max_short, $allow_enlarge);
+            $this->resize($max_short, $long, $allow_enlarge);
         }
 
         return $this;
@@ -305,14 +305,14 @@ public function resizeToLongSide($max_long, $allow_enlarge = false)
     {
         if ($this->getSourceHeight() > $this->getSourceWidth()) {
             $ratio = $max_long / $this->getSourceHeight();
-            $width = $this->getSourceWidth() * $ratio;
+            $short = $this->getSourceWidth() * $ratio;
 
-            $this->resize($width, $max_long, $allow_enlarge);
+            $this->resize($short, $max_long, $allow_enlarge);
         } else {
             $ratio = $max_long / $this->getSourceWidth();
-            $width = $this->getSourceHeight() * $ratio;
+            $short = $this->getSourceHeight() * $ratio;
 
-            $this->resize($width, $max_long, $allow_enlarge);
+            $this->resize($max_long, $short, $allow_enlarge);
         }
 
         return $this;

test/Test.php

@@ -132,6 +132,17 @@ public function testResizeToLongSide()
         $this->assertEquals(50, $resize->getDestHeight());
     }
 
+    public function testResizeToLongSideVertical()
+    {
+        $image = $this->createImage(100, 200, 'png');
+        $resize = new ImageResize($image);
+
+        $resize->resizeToLongSide(100);
+
+        $this->assertEquals(50, $resize->getDestWidth());
+        $this->assertEquals(100, $resize->getDestHeight());
+    }
+
     public function testResizeToShortSide()
     {
         $image = $this->createImage(200, 100, 'png');
@@ -143,6 +154,17 @@ public function testResizeToShortSide()
         $this->assertEquals(50, $resize->getDestHeight());
     }
 
+    public function testResizeToShortSideVertical()
+    {
+        $image = $this->createImage(100, 200, 'png');
+        $resize = new ImageResize($image);
+
+        $resize->resizeToShortSide(50);
+
+        $this->assertEquals(50, $resize->getDestWidth());
+        $this->assertEquals(100, $resize->getDestHeight());
+    }
+
     public function testResizeToHeight()
     {
         $image = $this->createImage(200, 100, 'png');