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Transparency PNG

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При использовании функций resize или crop (остальные функции не проверялись) к PNG изображению с прозрачным фоном терялась прозрачность, фон становился черным.
This commit is contained in:
Евгений
2013-11-18 10:40:39 +06:00
parent a5118781e2
commit 4d85666c18
1 changed files with 8 additions and 0 deletions
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8
libraries/Gelato/Image/Image.php
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@@ -218,6 +218,8 @@ class Image
// Create a new true color image width new width and height // Create a new true color image width new width and height
$resized = imagecreatetruecolor($new_width, $new_height); $resized = imagecreatetruecolor($new_width, $new_height);
$transPng = imagecolorallocatealpha($resized, 0, 0, 0, 127);
imagefill($resized, 0, 0, $transPng);
// Copy and resize part of an image with resampling // Copy and resize part of an image with resampling
imagecopyresampled($resized, $this->image, 0, 0, 0, 0, $new_width, $new_height, $this->width, $this->height); imagecopyresampled($resized, $this->image, 0, 0, 0, 0, $new_width, $new_height, $this->width, $this->height);
@@ -227,6 +229,8 @@ class Image
// Create a new true color image width new width and height // Create a new true color image width new width and height
$this->image = imagecreatetruecolor($new_width, $new_height); $this->image = imagecreatetruecolor($new_width, $new_height);
$transPng = imagecolorallocatealpha($this->image, 0, 0, 0, 127);
imagefill($this->image, 0, 0, $transPng);
// Copy and resize part of an image with resampling // Copy and resize part of an image with resampling
imagecopyresampled($this->image, $resized, 0, 0, 0, 0, $new_width, $new_height, $new_width, $new_height); imagecopyresampled($this->image, $resized, 0, 0, 0, 0, $new_width, $new_height, $new_width, $new_height);
@@ -269,6 +273,8 @@ class Image
// Create a new true color image // Create a new true color image
$crop = imagecreatetruecolor($width, $height); $crop = imagecreatetruecolor($width, $height);
$transPng = imagecolorallocatealpha($crop, 0, 0, 0, 127);
imagefill($crop, 0, 0, $transPng);
// Copy and resize part of an image with resampling // Copy and resize part of an image with resampling
imagecopyresampled($crop, $this->image, 0, 0, $x, $y, $this->width, $this->height, $this->width, $this->height); imagecopyresampled($crop, $this->image, 0, 0, $x, $y, $this->width, $this->height, $this->width, $this->height);
@@ -278,6 +284,8 @@ class Image
// Create a new true color image // Create a new true color image
$this->image = imagecreatetruecolor($width, $height); $this->image = imagecreatetruecolor($width, $height);
$transPng = imagecolorallocatealpha($this->image, 0, 0, 0, 127);
imagefill($this->image, 0, 0, $transPng);
// Copy and resize part of an image with resampling // Copy and resize part of an image with resampling
imagecopyresampled($this->image, $crop, 0, 0, 0, 0, $width, $height, $width, $height); imagecopyresampled($this->image, $crop, 0, 0, 0, 0, $width, $height, $width, $height);