com.blitline.image.functions.AbstractTextFunction Maven / Gradle / Ivy

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package com.blitline.image.functions;

import org.apache.commons.lang3.Validate;

import com.blitline.image.functions.params.Gravity;

public abstract class AbstractTextFunction> extends AbstractFunction {
	
	protected AbstractTextFunction(String text) {
		params.put("text", text);
	}

	protected abstract T getThis();
	
	public T gravity(Gravity gravity) {
		params.put("gravity", gravity);
		return getThis();
	}
	
	public T pointSize(int pointSize) {
		Validate.isTrue(pointSize > 0, "text size in points must be positive");
		
		params.put("point_size", pointSize);
		return getThis();
	}
	
	public T fontFamily(String fontFamily){
		params.put("font_family", fontFamily);
		return getThis();
	}
}