package utility;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.LayoutManager;
import java.awt.Panel;
import java.awt.Window;
import java.awt.event.ComponentEvent;
import java.awt.event.ComponentListener;
import java.awt.print.PageFormat;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JLayeredPane;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JRootPane;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextArea;
import javax.swing.JToggleButton;
import javax.swing.JTree;
import javax.swing.table.JTableHeader;
import javax.swing.text.JTextComponent;
import utility.printing.ContainerPageRenderer;

/**
 * Operations on a container - a utility class.
 * @author Konrad Borowiecki
 */
public class ContainerOps {
	//to ensure its un-instantiability, as it is a utility class
	private ContainerOps() {
	}

	/** Changes text on a button that is within a given container. Useful when there 
	 * is no reference to the button, when we only know its current text.
	 * !!! NOTICE it will change texts on all buttons which text corresponds to currentText. 
	 * @param c the container which has the button.
	 * @param currentText the current text of the button we look for.
	 * @param newText the text to be set for the button.
	 * @param newToolTip the tool tip text to be set for the button.
	 */
	public void changeButtonText(Container c, String currentText, String newText, String newToolTip) {
		int len = c.getComponentCount();
		for(int i = 0; i < len; i++) {
			Component comp = c.getComponent(i);
			if(comp instanceof JButton) {
				JButton b = (JButton) comp;
				if(b != null && b.getText() != null && b.getText().equals(currentText)) {
					System.out.println("Text changed from:" + currentText + "; to:" + newText);
					b.setText(newText);
					b.setToolTipText(newToolTip);
				}
			}
			else if(comp instanceof Container)
				changeButtonText((Container) comp, currentText, newText, newToolTip);
		}
	}

	/**
	 * Finds highest components in the given container in each row 
	 * (i.e. going from top to bottom finding components which position plus height extends 
	 * furthest then that of other components in the row).
	 * @param container the container where to look for the components.
	 * @return list of highest components in the given container in each row.
	 */
	public static List<Component> findFurthestReachingInRowChildComponents(Container container) {
		List<Component> result = new ArrayList<Component>();
		List<Component> fccList = findChildComponents(container);
		List<Component> ccList = orderComponentsForY(fccList);
		int containerEndPoint = container.getLocationOnScreen().y + container.getHeight();
		System.out.println("containerEndPoint=" + containerEndPoint + "; containerY="
				+ container.getLocationOnScreen().y + ";containerH=" + container.getHeight());
		//current Y
		int y = 0;
		Component pcc = null;
		for(int i = 0; i < ccList.size(); i++) {
			Component cc = ccList.get(i);
			int ccY = cc.getLocationOnScreen().y;
			if(ccY >= y) {
				//take the first component as the potential child
				if(pcc == null) {
					//System.out.println(" pcc == null Oi; now is="+cc.getName());
					pcc = cc;
					if(i == ccList.size() - 1)
						result.add(pcc);
				}
				else // pcc != null
				{
					int pccY = pcc.getLocationOnScreen().y;
					int pccEndY = pccY + pcc.getHeight();
					int ccEndY = ccY + cc.getHeight();
					if(pccY >= ccEndY
							|| (pccY < ccY && pccEndY > ccY && pccEndY < ccEndY)
							|| (pccY > ccY && pccEndY < ccEndY)) {
						//				System.out.println(" pcc != null Oi pcc was="+pcc.getName()+"; now is="+cc.getName());
						pcc = cc;
						if(i == ccList.size() - 1)
							result.add(pcc);
					}
					else 
						/* Do not add null element. If in an iteration an element is not added
								 * it will cause the while loop to break since the list size will not change. */
					{
						result.add(pcc);
						y = pcc.getLocationOnScreen().y + pcc.getHeight();
						pcc = null;
					}
				}
			}
		}
//		int counter = 0;
//		int prevSize = -1;
//		//curent index of ccList pointing to a latest selected child component
//		int ccListIndex = -1;
//		while(y < containerEndPoint && result.size() != prevSize) {
//			prevSize = result.size();
//			//potential child component
//			Component pcc = null;
//			for(int i = ccListIndex +1; i < ccList.size(); i++) {
//				Component cc = ccList.get(i);
//				int ccY = cc.getLocationOnScreen().y;
//				if(ccY >= y) {
//					//			System.out.println(" if(ccY >= y); cc.name="+cc.getName());
//					//take the first component as the potential child
//					if(pcc == null) {
//						//System.out.println(" pcc == null Oi; now is="+cc.getName());
//						pcc = cc;
//						ccListIndex = i;
//					}
//					else // pcc != null
//					{
//						int pccY = pcc.getLocationOnScreen().y;
//						int pccEndY = pccY + pcc.getHeight();
//						int ccEndY = ccY + cc.getHeight();
//						if(pccY >= ccEndY
//								|| (pccY < ccY && pccEndY > ccY && pccEndY < ccEndY)
//								|| (pccY > ccY && pccEndY < ccEndY)) {
//							//				System.out.println(" pcc != null Oi pcc was="+pcc.getName()+"; now is="+cc.getName());
//							pcc = cc;
//							ccListIndex = i;
//						}
//					}
//				}
//			}
//			/* Do not add null element. If in an iteration an element is not added
//			 * it will cause the while loop to break since the list size will not change. */
//			if(pcc != null) {
//				System.out.println("y=" + y
//						+ "; pcc.getLocationOnScreen().y=" + pcc.getLocationOnScreen().y
//						+ "; pcc.getHeight()=" + pcc.getHeight()
//						+ "; pcc=" + pcc);
//				result.add(pcc);
//				y = pcc.getLocationOnScreen().y + pcc.getHeight();
//			}
//			System.out.println("y=" + y + "; counter=" + (++counter));
//		}
		return result;
	}

	/**
	 * Orders a list of components for their left top most point's Y coordinate on screen.
	 * @param components list of components to order.
	 * @return new list created by ordering the given list of components in ascending 
	 * order for their Y coordinate of the left top most point.
	 */
	public static List<Component> orderComponentsForY(List<Component> components) {
		List<Component> result = new ArrayList<Component>();
		//order the list of children for y coordinate in ascending order
		for(Component fcc : components) {
			if(result.isEmpty()) {
				result.add(fcc);
				//			System.out.println("ccList.isEmpty() fccY="+ fcc.getLocationOnScreen().y+"; fcc="+fcc);
			}
			else
				for(int j = 0; j < result.size(); j++) {
					Component cc = result.get(j);
					int fccY = fcc.getLocationOnScreen().y;
					int ccY = cc.getLocationOnScreen().y;
					if(fccY <= ccY) {
						//			System.out.println("asassa fccY="+fccY+"; ccY="+ccY+"; j="+j+"; fcc="+fcc);
						result.add(j, fcc);
						break;
					}
					else if(j == result.size() - 1) {
						//			System.out.println("if(j == ccList.size()-1) fccY="+fccY+"; ccY="+ccY+"; j="+j+"; fcc="+fcc);
						result.add(fcc);
						break;
					}
				}
		}
//		System.out.println("ccList.size()="+result.size());		
//		for(int i = 0; i < result.size(); i++)
//		{
//			Component c = result.get(i);
//			System.out.println("ccList i="+i+"; c.pOnS.y="+c.getLocationOnScreen().y+"; c="+c);
//		}
		return result;
	}

	/**
	 * Finds a list of only child components without their container.
	 * @param container where to look for the child components.
	 * @return list of child components.
	 */
	public static List<Component> findChildComponents(Container container) {
		List<Component> result = new ArrayList<Component>();
		for(Component c : container.getComponents())
			if(c instanceof JComboBox || c instanceof JButton
					//direct super calss of JRadionButton and JCheckBox 
					|| c instanceof JToggleButton //|| c instanceof JRadioButton || c instanceof JCheckBox 
					|| c instanceof JList || c instanceof JScrollPane
					|| c instanceof JTable || c instanceof JTableHeader
					|| c instanceof JLabel || c instanceof JTextComponent
					|| c instanceof JTree) {
				//	if(c instanceof JTextComponent)//direct subclasses are: JEditorPane, JTextArea, JTextField
				//find row size similarly for the table
				//		if(c instanceof JScrollPane)
				//			result.add(((JScrollPane)c).getViewport());
				//		else

//				if(c.getParent() instanceof JTable)
//					System.out.println("KOAOAKOKASOKOSAASKO");
				result.add(c);
//				System.out.println("else c="+c+"\nc.getBounds="+c.getBounds());
			}
			else if(c instanceof Container
					&& (c instanceof JPanel || c instanceof JRootPane
					|| c instanceof Window || c instanceof Panel
					|| c instanceof JLayeredPane)) {
				result.addAll(findChildComponents((Container) c));
//				System.out.println("if(c instanceof Container) c="+c);
			}
			else
				System.err.println("!!!Do not know how to process with this class of component =" + c.getClass());
//		System.out.println("findChildComponents result="+result.size());
		return result;
	}

	public static void main(String[] args) throws IOException {
		JPanel p = new JPanel();
		LayoutManager pLayout = new BoxLayout(p, BoxLayout.Y_AXIS);
		p.setLayout(pLayout);
		JButton aB = new JButton("ButtonA");
		aB.setName("aB");
		p.add(aB);
		JButton bB = new JButton("ButtonB");
		bB.setName("bB");
		p.add(bB);
		JLabel aL = new JLabel("LabelA");
		aL.setName("aL");
		p.add(aL);
		JPanel aPanel = new JPanel();
		JLabel bL = new JLabel("LabelB");
		bL.setName("bL");
		aPanel.add(bL);
		JComboBox aCB = new JComboBox();
		aCB.setName("aCB");
		aPanel.add(aCB);
		p.add(aPanel);

		JPanel bPanel = new JPanel();
		JPanel aBPanel = new JPanel();
		LayoutManager aBPanelLayout = new BoxLayout(aBPanel, BoxLayout.Y_AXIS);
		aBPanel.setLayout(aBPanelLayout);
		JLabel bPanelL = new JLabel("bPanel Label1");
		bPanelL.setName("bPanelL");
		aBPanel.add(bPanelL);
		JRadioButton bPanelRB = new JRadioButton("bPanel RadioButton1");
		bPanelRB.setName("bPanelRB");
		aBPanel.add(bPanelRB);
		bPanel.add(aBPanel);
		JButton bPanelB = new JButton("bPanelB Button1");
		bPanelB.setName("bPanelB");
		bPanel.add(bPanelB);
		JButton bBPanelB = new JButton("bBPanelB");
		bBPanelB.setName("bBPanelB");
		bBPanelB.setPreferredSize(new Dimension(100, 55));
		bBPanelB.setBackground(Color.RED);
		JLabel bBPanelL2 = new JLabel("bBPanelL2");
//		bBPanelL2.setPreferredSize(new Dimension(700, 1900));
		bBPanelL2.setName("bBPanelL2");
		bBPanelL2.setOpaque(true);
		bBPanelL2.setBackground(Color.YELLOW);
		JPanel bBPanel = new JPanel();
		LayoutManager bBPanelLayout = new BorderLayout();
		bBPanel.setLayout(bBPanelLayout);
		bBPanel.add(bBPanelB, BorderLayout.NORTH);
		bBPanel.add(bBPanelL2, BorderLayout.SOUTH);
		bBPanel.setBackground(Color.BLUE);
		bPanel.add(bBPanel);

		JPanel emptyPanel = new JPanel();
		emptyPanel.setPreferredSize(new Dimension(800, 2222));
		p.add(emptyPanel);
		p.add(bPanel);

		int rows = 214;
		int columns = 5;
		Object[][] data = new Object[rows][columns];
		for(int i = 0; i < rows; i++)
			for(int j = 0; j < columns; j++) {
				data[i][j] = "i=" + i + "; j=" + j;
			}
		System.out.println("data.length=" + data.length);
		Object[] colNames = {
			"A", "B", "C"
		};
		JTable table = new JTable(data, colNames);
		table.setName("table");
		JTableHeader th = table.getTableHeader();
		th.setName("tableHeader");
		p.add(th);
		p.add(table);

		JTextArea ta = new JTextArea("asddasasd\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL"
				+ "\nAasddasasd\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAasddasasd"
				+ "\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAasddasasd\nAKSLAKSL"
				+ "\nAKSLAKSL\nAKSLAKSL\nAasddasasd\nAKSLAKSL\nAKSLAKSL"
				+ "\nAKSLAKSL\nAasddasasd\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAasddasasd"
				+ "\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAasddasasd\nAKSLAKSL\nAKSLAKSL"
				+ "\nAKSLAKSL\nAasddasasd\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAasddasasd"
				+ "\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAasddasasd\nAKSLAKSL\nAKSLAKSL"
				+ "\nAKSLAKSL\nAasddasasd\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAasddasasd"
				+ "\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAasddasasd\nAKSLAKSL\nAKSLAKSL"
				+ "\nAKSLAKSL\nAasddasasd\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAasddasasd"
				+ "\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAasddasasd\nAKSLAKSL\nAKSLAKSL"
				+ "\nAKSLAKSL\nAasddasasd\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAasddasasd"
				+ "\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAasddasasd\nAKSLAKSL\nAKSLAKSL"
				+ "\nAKSLAKSL\nAasddasasd\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAasddasasd"
				+ "\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAasddasasd\nAKSLAKSL\nAKSLAKSL"
				+ "\nAKSLAKSL\nAasddasasd\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAasddasasd"
				+ "\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAasddasasd\nAKSLAKSL\nAKSLAKSL"
				+ "\nAKSLAKSL\nAasddasasd\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAasddasasd"
				+ "\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAasddasasd\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL"
				+ "\nAasddasasd\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAasddasasd\nAKSLAKSL\nAKSLAKSL"
				+ "\nAKSLAKSL\nAasddasasd\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAasddasasd\nAKSLAKSL"
				+ "\nAKSLAKSL\nAKSLAKSL\nAasddasasd\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL"
				+ "\nAKSLAKSLAKSLAKSLasddasasd\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL"
				+ "\nAKSLAKSLAKSLAKSLasddasasd\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL"
				+ "\nAKSLAKSLAKSLAKSLasddasasd\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL"
				+ "\nAKSLAKSLAKSLAKSLasddasasd\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL"
				+ "\nAKSLAKSLAKSLAKSLasddasasd\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL"
				+ "\nAKSLAKSLAKSLAKSLasddasasd\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL"
				+ "\nAKSLAKSLAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL\nAKSLAKSL");
		ta.setName("Text Area ta");
//		p.add(ta);

		System.out.println("ta.getRows()=" + ta.getRows() + "; ta.getPreferredSize()=" + ta.getPreferredSize());

		final JFrame f = new JFrame();
		p.setSize(p.getPreferredSize());

//		JPanel contentPane = new JPanel();
//		contentPane.setLayout(new BorderLayout());
//		contentPane.setBackground(Color.BLUE);

		PrinterJob pj = PrinterJob.getPrinterJob();
		PageFormat pageFormat = pj.getPageFormat(new HashPrintRequestAttributeSet());
//		System.out.println("pageFormatW=" + pageFormat.getImageableWidth() + "; pageFormatH=" + pageFormat.getImageableHeight());
		ContainerPageRenderer cpr = new ContainerPageRenderer(p, pageFormat);
		cpr.setSize(cpr.getPreferredSize());

		f.getLayeredPane().add(p, JLayeredPane.PALETTE_LAYER);
		f.getLayeredPane().add(cpr, JLayeredPane.MODAL_LAYER);
//		f.setContentPane(contentPane);
		f.setSize(600, 300);
		f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		f.addComponentListener(new ComponentListener() {
			@Override
			public void componentResized(ComponentEvent e) {
				f.repaint();
			}

			@Override
			public void componentMoved(ComponentEvent e) {
			}

			@Override
			public void componentShown(ComponentEvent e) {
			}

			@Override
			public void componentHidden(ComponentEvent e) {
			}
		});
		f.setVisible(true);

		cpr.initPages();


//System.out.println("table.getHeight()="+table.getHeight() + "; table.pOnS.y="+table.getLocationOnScreen().y);
//System.out.println("aB.getHeight()="+aB.getHeight() + "; aB.pOnS.y="+aB.getLocationOnScreen().y);
//System.out.println("bB.getHeight()="+bB.getHeight() + "; bB.pOnS.y="+bB.getLocationOnScreen().y);
//System.out.println("aL.getHeight()="+aL.getHeight() + "; aL.pOnS.y="+aL.getLocationOnScreen().y);
//System.out.println("bL.getHeight()="+bL.getHeight() + "; bL.pOnS.y="+bL.getLocationOnScreen().y);
//System.out.println("cb1.getHeight()="+aCB.getHeight() + "; cb1.pOnS.y="+aCB.getLocationOnScreen().y);
//System.out.println("bPanelRB.getHeight()="+bPanelRB.getHeight()+ "; bPanelRB.pOnS.y="+bPanelRB.getLocationOnScreen().y);
//System.out.println("bPanelL.getHeight()="+bPanelL.getHeight()+ "; bPanelL.pOnS.y="+bPanelL.getLocationOnScreen().y);
//System.out.println("bPanelB.getHeight()="+bPanelB.getHeight()+ "; bPanelB.pOnS.y="+bPanelB.getLocationOnScreen().y);

//		List<Component> cc = findChildComponents(p);
//		System.out.println("cc.size()=" + cc.size());
//		for(int i = 0; i < cc.size(); i++)
//		{
//			Component c = cc.get(i);
//			System.out.println("i=" + i + "; c=" + c);
//		}
//		System.out.println("p.getHeight()=" + p.getHeight()+"; p.pOnS.y="+p.getLocationOnScreen().y);		
//		List<Component> result = findFurthestReachingInRowChildComponents(p);
//		System.out.println("final result.size()=" + result.size());
//		for(int i = 0; i < result.size(); i++)
//		{
//			Component c = result.get(i);
//			System.out.println("i=" + i + "; c=" + c);
//			if(i > 0)
//			{
//				Component pc = result.get(i - 1);
//				int spaceSize = c.getLocationOnScreen().y - pc.getLocationOnScreen().y - pc.getHeight();
//				System.out.println("i=" + i + "; spaceSize=" + spaceSize);
//			}
//		}
//		for(Component c : result)
//		{
//			if(c instanceof JLabel)
//				((JLabel) c).setOpaque(true);
//			c.setBackground(Color.GREEN);
//		}		
		List<Double> pageHeights = cpr.getPageHeights();
		System.out.println("******pageHeights.size()=" + pageHeights.size());
		for(int i = 0; i < pageHeights.size(); i++) {
			Double pageHeight = pageHeights.get(i);
			System.out.println("i=" + i + "; pageHeight=" + pageHeight);
		}
		List<JTableHeader> tableHeaders = cpr.getTableHeadersOfToLargeTables();
		System.out.println("******tableHeaders.size()=" + tableHeaders.size());
		for(int i = 0; i < tableHeaders.size(); i++) {
			JTableHeader tableHeader = tableHeaders.get(i);
			String thH = "!!! cannot calculate height since tableHeader is null";
			if(tableHeader != null)
				thH = "" + tableHeader.getHeight();
			System.out.println("i=" + i + "; tableHeader.getHeight()=" + thH);
		}
//		int pageY = 0;
//		for(int i = 0; i < pageHeights.size(); i++)
//		{
//			pageY += pageHeights.get(i);
//			System.out.println("i=" + i + "; pageY=" + pageY);
//		}
		//p must be visible for myprint utility
		p.setVisible(false);
		f.validate();
		f.repaint();

		pj.setPrintable(cpr, pageFormat);
		if(pj.printDialog())
			try {
				ContainerPageRenderer.disableDoubleBuffering(p);
				System.out.println("Calling PrintJob.print()");
				//w ten sposob wydruk bedzie wycentrowany do rozmiarow strony
				pj.print();//print(new HashPrintRequestAttributeSet());//printJob.print();
				System.out.println("End PrintJob.print()");
			}catch(PrinterException e) {
				System.out.println(e);
			}finally //  whatever happend (exception or not) turn back on the double buffering
			{
				ContainerPageRenderer.enableDoubleBuffering(p);
			}
//		f.dispose();
	}
}