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Add resizeLetterbox method #9

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Add resizeLetterbox method #9

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f1313a0
add function
May 7, 2017
5debb04
add letterbox mode to generic resize function
May 7, 2017
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14 changes: 13 additions & 1 deletion src/Grafika/EditorInterface.php
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Original file line number Diff line number Diff line change
Expand Up @@ -151,7 +151,7 @@ public function open( &$image, $imageFile );
* @param ImageInterface $image Instance of Image.
* @param int $newWidth Width in pixels.
* @param int $newHeight Height in pixels.
* @param string $mode Resize mode. Possible values: "exact", "exactHeight", "exactWidth", "fill", "fit".
* @param string $mode Resize mode. Possible values: "exact", "exactHeight", "exactWidth", "fill", "fit", "letterbox".
*
* @return EditorInterface An instance of Editor.
*/
Expand Down Expand Up @@ -210,6 +210,18 @@ public function resizeFill( &$image, $newWidth, $newHeight );
*/
public function resizeFit( &$image, $newWidth, $newHeight );

/**
* Resize an image to fit within the given width and height, then fill out the remaining space with a background color. The re-sized image + color fill will exactly match the given dimensions. Useful if you want to preserve the aspect ratio but also fill out an exact size.
*
* @param ImageInterface $image Instance of Image.
* @param int $newWidth Width in pixels.
* @param int $newHeight Width in pixels.
* @param Color $color The Color object containing the background color.
*
* @return EditorInterface An instance of Editor.
*/
public function resizeLetterbox( &$image, $newWidth, $newHeight, $color);

/**
* Rotate an image counter-clockwise.
*
Expand Down
29 changes: 28 additions & 1 deletion src/Grafika/Gd/Editor.php
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Original file line number Diff line number Diff line change
Expand Up @@ -504,7 +504,7 @@ public function open(&$image, $imageFile){
* @param Image $image
* @param int $newWidth Width in pixels.
* @param int $newHeight Height in pixels.
* @param string $mode Resize mode. Possible values: "exact", "exactHeight", "exactWidth", "fill", "fit".
* @param string $mode Resize mode. Possible values: "exact", "exactHeight", "exactWidth", "fill", "fit", "letterbox".
*
* @return Editor
* @throws \Exception
Expand Down Expand Up @@ -533,6 +533,9 @@ public function resize(&$image, $newWidth, $newHeight, $mode = 'fit')
case 'fit':
$this->resizeFit($image, $newWidth, $newHeight);
break;
case 'letterbox':
$this->resizeLetterbox($image, $newWidth, $newHeight, new Color('#FFFFFF'));
break;
default:
throw new \Exception(sprintf('Invalid resize mode "%s".', $mode));
}
Expand Down Expand Up @@ -665,6 +668,30 @@ public function resizeFit(&$image, $newWidth, $newHeight)
return $this;
}

/**
* Resize image to fit within the given width and height, then fill out the remaining space with a background color.
*
* @param Image $image
* @param int $newWidth Width in pixels.
* @param int $newHeight Height in pixels.
* @param Color $color The Color object containing the background color.
*
* @return Editor
*/
public function resizeLetterbox(&$image, $newWidth, $newHeight, $color)
{

$canvas = Grafika::createBlankImage($newWidth, $newHeight);
$this->fill($canvas, $color);

$this->resizeFit($image, $newWidth, $newHeight);

$this->blend($canvas, $image, 'normal', 1, 'center');
$image = $canvas;

return $this;
}

/**
* Rotate an image counter-clockwise.
*
Expand Down
29 changes: 28 additions & 1 deletion src/Grafika/Imagick/Editor.php
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Original file line number Diff line number Diff line change
Expand Up @@ -402,7 +402,7 @@ public function open(&$image, $imageFile){
* @param Image $image
* @param int $newWidth Width in pixels.
* @param int $newHeight Height in pixels.
* @param string $mode Resize mode. Possible values: "exact", "exactHeight", "exactWidth", "fill", "fit".
* @param string $mode Resize mode. Possible values: "exact", "exactHeight", "exactWidth", "fill", "fit", "letterbox".
*
* @return Editor
* @throws \Exception
Expand Down Expand Up @@ -431,6 +431,9 @@ public function resize(&$image, $newWidth, $newHeight, $mode = 'fit')
case 'fit':
$this->resizeFit($image, $newWidth, $newHeight);
break;
case 'letterbox':
$this->resizeLetterbox($image, $newWidth, $newHeight, new Color('#FFFFFF'));
break;
default:
throw new \Exception(sprintf('Invalid resize mode "%s".', $mode));
}
Expand Down Expand Up @@ -563,6 +566,30 @@ public function resizeFit(&$image, $newWidth, $newHeight)
return $this;
}

/**
* Resize image to fit within the given width and height, then fill out the remaining space with a background color.
*
* @param Image $image
* @param int $newWidth Width in pixels.
* @param int $newHeight Height in pixels.
* @param Color $color The Color object containing the background color.
*
* @return Editor
*/
public function resizeLetterbox(&$image, $newWidth, $newHeight, $color)
{

$canvas = Grafika::createBlankImage($newWidth, $newHeight);
$this->fill($canvas, $color);

$this->resizeFit($image, $newWidth, $newHeight);

$this->blend($canvas, $image, 'normal', 1, 'center');
$image = $canvas;

return $this;
}

/**
* Rotate an image counter-clockwise.
*
Expand Down