Page.java

/*
 * Copyright (c) 1998-2017 by Richard A. Wilkes. All rights reserved.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, version 2.0. If a copy of the MPL was not distributed with
 * this file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This Source Code Form is "Incompatible With Secondary Licenses", as
 * defined by the Mozilla Public License, version 2.0.
 */

package com.trollworks.gcs.page;

import com.trollworks.toolkit.ui.GraphicsUtilities;
import com.trollworks.toolkit.ui.UIUtilities;
import com.trollworks.toolkit.ui.border.EmptyBorder;
import com.trollworks.toolkit.ui.print.PrintManager;
import com.trollworks.toolkit.utility.units.LengthUnits;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Insets;

import javax.swing.JPanel;

/** A printer page. */
public class Page extends JPanel {
	private PageOwner mOwner;

	/**
	 * Creates a new page.
	 *
	 * @param owner The page owner.
	 */
	public Page(PageOwner owner) {
		super(new BorderLayout());
		mOwner = owner;
		setOpaque(true);
		setBackground(Color.white);
		PrintManager pageSettings = mOwner.getPageSettings();
		Insets insets = mOwner.getPageAdornmentsInsets(this);
		double[] margins = pageSettings != null ? pageSettings.getPageMargins(LengthUnits.PT) : new double[] { 36.0, 36.0, 36.0, 36.0 };
		setBorder(new EmptyBorder(insets.top + (int) margins[0], insets.left + (int) margins[1], insets.bottom + (int) margins[2], insets.right + (int) margins[3]));
		double[] size = mOwner.getScale().scale(pageSettings != null ? pageSettings.getPageSize(LengthUnits.PT) : new double[] { 8.5 * 72.0, 11.0 * 72.0 });
		Dimension pageSize = new Dimension((int) size[0], (int) size[1]);
		UIUtilities.setOnlySize(this, pageSize);
		setSize(pageSize);
	}

	@Override
	protected void paintComponent(Graphics gc) {
		super.paintComponent(GraphicsUtilities.prepare(gc));
		mOwner.drawPageAdornments(this, gc);
	}
}