diff options
Diffstat (limited to 'include/Photo.php')
| -rw-r--r-- | include/Photo.php | 62 |
1 files changed, 61 insertions, 1 deletions
diff --git a/include/Photo.php b/include/Photo.php index aa6f5f113..66dec0611 100644 --- a/include/Photo.php +++ b/include/Photo.php @@ -121,7 +121,67 @@ class Photo { $this->image = imagerotate($this->image,$degrees,0); $this->width = imagesx($this->image); $this->height = imagesy($this->image); - } + } + + public function flip($horiz = true, $vert = false) { + $w = imagesx($this->image); + $h = imagesy($this->image); + $flipped = imagecreate($w, $h); + if($horiz) { + for ($x = 0; $x < $w; $x++) { + imagecopy($flipped, $this->image, $x, 0, $w - $x - 1, 0, 1, $h); + } + } + if($vert) { + for ($y = 0; $y < $h; $y++) { + imagecopy($flipped, $this->image, 0, $y, 0, $h - $y - 1, $w, 1); + } + } + $this->image = $flipped; + } + + public function orient($filename) { + // based off comment on http://php.net/manual/en/function.imagerotate.php + + $exif = exif_read_data($filename); + $ort = $exif['Orientation']; + + switch($ort) + { + case 1: // nothing + break; + + case 2: // horizontal flip + $this->flip(); + break; + + case 3: // 180 rotate left + $this->rotate(180); + break; + + case 4: // vertical flip + $this->flip(false, true); + break; + + case 5: // vertical flip + 90 rotate right + $this->flip(false, true); + $this->rotate(-90); + break; + + case 6: // 90 rotate right + $this->rotate(-90); + break; + + case 7: // horizontal flip + 90 rotate right + $this->flip(); + $this->rotate(-90); + break; + + case 8: // 90 rotate left + $this->rotate(90); + break; + } + } |