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allow negative values for crop width & height
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@@ -495,8 +495,8 @@ EOD;
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$height = $this->height;
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if($this->crop) {
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$width = $this->crop['width'] = $this->crop['width'] == 0 ? $this->width : $this->crop['width'];
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$height = $this->crop['height'] = $this->crop['height'] == 0 ? $this->height : $this->crop['height'];
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$width = $this->crop['width'] = $this->crop['width'] <= 0 ? $this->width + $this->crop['width'] : $this->crop['width'];
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$height = $this->crop['height'] = $this->crop['height'] <= 0 ? $this->height + $this->crop['height'] : $this->crop['height'];
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if($this->crop['start_x'] == 'left') {
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$this->crop['start_x'] = 0;
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