Merge pull request #82 from erigoni/erigoni-patch-1

Add functions for resize regardingless the image orientation

Author: adityapatadia

README.md

@@ -66,6 +66,18 @@ $image->resizeToWidth(300);
 $image->save('image2.jpg');
 ```
 
+To resize an image according to a given measure regardingless its orientation (keeping aspect ratio):
+
+```php
+$image = new ImageResize('image.jpg');
+$image->resizeToLongSide(500);
+$image->save('image2.jpg');
+
+$image = new ImageResize('image.jpg');
+$image->resizeToShortSide(300);
+$image->save('image2.jpg');
+```
+
 To resize an image to best fit a given set of dimensions (keeping aspet ratio):
 ```php
 $image = new ImageResize('image.jpg');
@@ -253,3 +265,4 @@ API Doc
 -------
 
 https://eventviva.github.io/php-image-resize/class-Eventviva.ImageResize.html
+>>>>>>> f84e175149be8a6058e196408d59a1c05b509345

lib/ImageResize.php

@@ -270,6 +270,54 @@ public function output($image_type = null, $quality = null)
         $this->save(null, $image_type, $quality);
     }
 
+    /**
+     * Resizes image according to the given short side (short side proportional)
+     *
+     * @param integer $max_short
+     * @param boolean $allow_enlarge
+     * @return \static
+     */
+    public function resizeToShortSide($max_short, $allow_enlarge = false)
+    {
+        if ($this->getSourceHeight() < $this->getSourceWidth()) {
+            $ratio = $max_short / $this->getSourceHeight();
+            $long = $this->getSourceWidth() * $ratio;
+
+            $this->resize($long, $max_short, $allow_enlarge);
+        } else {
+            $ratio = $max_short / $this->getSourceWidth();
+            $long = $this->getSourceHeight() * $ratio;
+
+            $this->resize($max_short, $long, $allow_enlarge);
+        }
+        
+        return $this;
+    }
+
+    /**
+     * Resizes image according to the given long side (short side proportional)
+     *
+     * @param integer $max_long
+     * @param boolean $allow_enlarge
+     * @return \static
+     */
+    public function resizeToLongSide($max_long, $allow_enlarge = false)
+    {
+        if ($this->getSourceHeight() > $this->getSourceWidth()) {
+            $ratio = $max_long / $this->getSourceHeight();
+            $short = $this->getSourceWidth() * $ratio;
+
+            $this->resize($short, $max_long, $allow_enlarge);
+        } else {
+            $ratio = $max_long / $this->getSourceWidth();
+            $short = $this->getSourceHeight() * $ratio;
+
+            $this->resize($max_long, $short, $allow_enlarge);
+        }
+        
+        return $this;
+    }
+
     /**
      * Resizes image according to the given height (width proportional)
      *

test/Test.php

@@ -121,6 +121,50 @@ public function testInvalidString()
      * Resize tests
      */
 
+    public function testResizeToLongSide()
+    {
+        $image = $this->createImage(200, 100, 'png');
+        $resize = new ImageResize($image);
+
+        $resize->resizeToLongSide(100);
+
+        $this->assertEquals(100, $resize->getDestWidth());
+        $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');
+        $resize = new ImageResize($image);
+
+        $resize->resizeToShortSide(50);
+
+        $this->assertEquals(100, $resize->getDestWidth());
+        $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');