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/*
 * ===========================================
 * Java Pdf Extraction Decoding Access Library
 * ===========================================
 *
 * Project Info:  http://www.idrsolutions.com
 * Help section for developers at http://www.idrsolutions.com/java-pdf-library-support/
 *
 * (C) Copyright 1997-2013, IDRsolutions and Contributors.
 *
 * 	This file is part of JPedal
 *
     This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA


 *
 * ---------------
 * CustomImageIcon.java
 * ---------------
 */

package org.jpedal.objects.acroforms.overridingImplementations;

import java.awt.Image;

import javax.swing.ImageIcon;

public class CustomImageIcon extends ImageIcon {
	private static final long serialVersionUID = 5003778613900628453L;

	/** the maximum scaling factor difference between the rootImage and the current Form dimentions */
	protected static float MAXSCALEFACTOR = 1.5f;

	protected int iconWidth = -1;
	protected int iconHeight = -1;

	protected int iconRotation = 0;
	protected int iconOpp = 180;
	/** the page rotation required for this image */
	protected int pageRotate = 0;

	/**
	 * used to tell praint method if we are displaying in single page mode, if so we rotate here, if not rotate is handled elsewhere.
	 */
	protected boolean displaySingle = false;

	/**
	 * sets the scaling factor that the image has to change by before the root images are redraw to the current sizes. i.e if scaling factor is 1.5
	 * start with 50% image, it wont redraw the image until its abot 75% or below 33% where as scaling factor of 1, means it will always redraw the
	 * image to the size required.
	 */
	public static void setMaxScaleFactor(float scaleFactor) {
		MAXSCALEFACTOR = scaleFactor;
	}

	public CustomImageIcon(int iconRot) {
		this.iconRotation = iconRot;
		this.iconOpp = this.iconRotation - 180;
		if (this.iconOpp < 0) this.iconOpp += 360;
	}

	public void setAttributes(int newWidth, int newHeight, int pageRotation, boolean displaySing) {
		// recalculate rotationVal
		int finalRotation = validateRotationValue(pageRotation - this.iconRotation);

		this.pageRotate = pageRotation;

		if (finalRotation == this.iconRotation || finalRotation == this.iconOpp) {
			this.iconWidth = newWidth;
			this.iconHeight = newHeight;
		}
		else {// the final rotation is out by 90 relative to the icon rotation
				// turn the width and height round so that the bufferedimage is the correct orientation
				// this is relative to the final rotation
			this.iconWidth = newHeight;
			this.iconHeight = newWidth;
		}

		this.displaySingle = displaySing;
	}

	protected static int validateRotationValue(int rotation) {
		// make sure is between 0 and 360
		rotation = rotation % 360;
		// if negative make positive
		if (rotation < 0) rotation += 360;

		return rotation;
	}

	@Override
	public int getIconHeight() {
		if (this.iconHeight == -1) {
			Image image = getImage();

			if (image == null) return -1;
			else return image.getHeight(null);
		}
		else return this.iconHeight;
	}

	@Override
	public int getIconWidth() {
		if (this.iconWidth == -1) {
			Image image = getImage();

			if (image == null) return -1;
			else return image.getWidth(null);
		}
		else return this.iconWidth;
	}
}