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package edu.rice.cs.util.swing;

import edu.rice.cs.util.swing.Utilities;

import javax.swing.*;

import javax.swing.border.EmptyBorder;

import javax.swing.event.ListSelectionEvent;

import javax.swing.event.ListSelectionListener;

import java.awt.*;

import java.awt.event.*;

/**

* FontChooser, adapted from NwFontChooserS by Noah Wairauch.

* (see http:///forum.java.sun.com/thread.jsp?forum=57&thread=195067)

*

* @version $Id: FontChooser.java 5594 2012-06-21 11:23:40Z rcartwright $

*/

public class FontChooser extends JDialog {

/** Available font styles.

*/

private static final String[] STYLES =

new String[] { "Plain", "Bold", "Italic", "Bold Italic" };

/** Available font sizes.

*/

private static final String[] SIZES =

new String[] { "3", "4", "5", "6", "7", "8", "9", "10", "11", "12",

"13", "14", "15", "16", "17", "18", "19", "20", "22",

"24", "27", "30", "34", "39", "45", "51", "60"};

// Lists to display

private NwList _styleList;

private NwList _fontList;

private NwList _sizeList;

// Swing elements

private JButton _okButton;

private JButton _cancelButton;

private JLabel _sampleText = new JLabel();

private boolean _clickedOK = false;

/** Constructs a new modal FontChooser for the given frame,

* using the specified font.

*/

private FontChooser(Frame parent, Font font) {

super(parent, true);

initAll();

if (font == null) font = _sampleText.getFont();

_fontList.setSelectedItem(font.getName());

_sizeList.setSelectedItem(font.getSize() + "");

_styleList.setSelectedItem(STYLES[font.getStyle()]);

//this.setResizable(false);

//resize();

}

/** Method used to show the font chooser, and select a new font.

*

* @param parent The parent frame.

* @param title The title for this window.

* @param font The previously chosen font.

* @return the newly chosen font.

*/

public static Font showDialog(Frame parent, String title, Font font) {

FontChooser fd = new FontChooser(parent, font);

fd.setTitle(title);

Utilities.setPopupLoc(fd, parent);

fd.setVisible(true);

Font chosenFont = null;

if (fd.clickedOK()) {

chosenFont = fd.getFont();

}

fd.dispose();

return (chosenFont);

}

/** Shows the font chooser with a standard title ("Font Chooser").

*/

public static Font showDialog(Frame parent, Font font) {

return showDialog(parent, "Font Chooser", font);

}

private void initAll() {

Container cp = getContentPane();

GridBagLayout cpLayout = new GridBagLayout();

GridBagConstraints c = new GridBagConstraints();

cp.setLayout(cpLayout);

// lists

c.fill = GridBagConstraints.BOTH;

c.anchor = GridBagConstraints.NORTH;

c.gridwidth = 1;

c.gridheight = 1;

c.gridx = 0;

c.gridy = 0;

c.weightx = 1.0;

c.weighty = 1.0;

_fontList = new NwList(GraphicsEnvironment.getLocalGraphicsEnvironment().getAvailableFontFamilyNames());

cpLayout.setConstraints(_fontList, c);

cp.add(_fontList);

// JPanel fontListPanel = new JPanel();

// fontListPanel.setBackground(Color.RED);

// cpLayout.setConstraints(fontListPanel, c);

// cp.add(fontListPanel);

c.fill = GridBagConstraints.VERTICAL;

c.anchor = GridBagConstraints.NORTH;

c.gridwidth = GridBagConstraints.RELATIVE;

c.gridheight = 1;

c.gridx = 1;

c.gridy = 0;

c.weightx = 0.3;

c.weighty = 1.0;

_styleList = new NwList(STYLES);

cpLayout.setConstraints(_styleList , c);

cp.add(_styleList);

// JPanel styleListPanel = new JPanel();

// styleListPanel.setBackground(Color.GREEN);

// cpLayout.setConstraints(styleListPanel, c);

// cp.add(styleListPanel);

c.fill = GridBagConstraints.BOTH;

c.anchor = GridBagConstraints.NORTH;

c.gridwidth = GridBagConstraints.REMAINDER;

c.gridheight = 1;

c.gridx = 2;

c.gridy = 0;

c.weightx = 0.3;

c.weighty = 1.0;

_sizeList = new NwList(SIZES);

cpLayout.setConstraints(_sizeList, c);

cp.add(_sizeList);

// sample text

c.fill = GridBagConstraints.BOTH;

c.anchor = GridBagConstraints.WEST;

c.gridwidth = GridBagConstraints.REMAINDER;

c.gridheight = 1;

c.gridx = 0;

c.gridy = 1;

c.weightx = 0.0;

c.weighty = 0.0;

_sampleText = new JLabel();

_sampleText.setForeground(Color.black);

cpLayout.setConstraints(_sampleText, c);

cp.add(_sampleText);

// buttons

JPanel bottom = new JPanel();

bottom.setBorder(new EmptyBorder(5,5,5,5));

bottom.setLayout(new BoxLayout(bottom, BoxLayout.X_AXIS));

bottom.add(Box.createHorizontalGlue());

_okButton = new JButton("OK");

_cancelButton = new JButton("Cancel");

bottom.add(_okButton);

bottom.add(_cancelButton);

_okButton.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

setVisible(false);

_clickedOK = true;

}

});

_cancelButton.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

setVisible(false);

_clickedOK = false;

}

});

bottom.add(Box.createHorizontalGlue());

c.fill = GridBagConstraints.NONE;

c.anchor = GridBagConstraints.PAGE_END;

c.gridwidth = GridBagConstraints.REMAINDER;

c.gridheight = 1;

c.gridx = 0;

c.gridy = 2;

c.weightx = 0.0;

c.weighty = 0.0;

cpLayout.setConstraints(bottom, c);

cp.add(bottom);

addWindowListener(new WindowAdapter() {

public void windowClosing(java.awt.event.WindowEvent e) {

setVisible(false);

}

});

setSize(425, 400);

}

private void showSample() {

int g = 0;

try { g = Integer.parseInt(_sizeList.getSelectedValue()); }

catch (NumberFormatException nfe) { /* do nothing */ }

String st = _styleList.getSelectedValue();

int s = Font.PLAIN;

if (st.equalsIgnoreCase("Bold")) s = Font.BOLD;

if (st.equalsIgnoreCase("Italic")) s = Font.ITALIC;

if (st.equalsIgnoreCase("Bold Italic")) s = Font.BOLD | Font.ITALIC;

_sampleText.setFont(new Font(_fontList.getSelectedValue(), s, g));

_sampleText.setText("The quick brown fox jumped over the lazy dog.");

_sampleText.setVerticalAlignment(SwingConstants.TOP);

}

/** Returns whether the user clicked OK when the dialog was closed. (If false, the user clicked cancel.) */

public boolean clickedOK() { return _clickedOK; }

/** Returns the currently selected Font. */

public Font getFont() { return _sampleText.getFont(); }

/** Private inner class for a list which displays a list of options in addition to a label indicating the currently

* selected item.

*/

public class NwList extends JPanel {

JList<String> jl;

JScrollPane sp;

JLabel jt;

String si = " ";

public NwList(String[] values) {

GridBagLayout cpLayout = new GridBagLayout();

GridBagConstraints c = new GridBagConstraints();

setLayout(cpLayout);

jl = new JList<String>(values);

sp = new JScrollPane(jl);

jt = new JLabel();

jt.setBackground(Color.white);

jt.setForeground(Color.black);

jt.setOpaque(true);

jt.setBorder(new JTextField().getBorder());

jt.setFont(getFont());

jl.addListSelectionListener(new ListSelectionListener() {

public void valueChanged(ListSelectionEvent e) {

jt.setText(jl.getSelectedValue());

si = jl.getSelectedValue();

showSample();

}

});

c.fill = GridBagConstraints.HORIZONTAL;

c.anchor = GridBagConstraints.NORTH;

c.gridwidth = GridBagConstraints.REMAINDER;

c.gridheight = 1;

c.gridx = 0;

c.gridy = 0;

c.weightx = 1.0;

c.weighty = 0.0;

cpLayout.setConstraints(jt, c);

add(jt);

c.fill = GridBagConstraints.BOTH;

c.anchor = GridBagConstraints.NORTH;

c.gridwidth = GridBagConstraints.REMAINDER;

c.gridheight = 1;

c.gridx = 0;

c.gridy = 1;

c.weightx = 1.0;

c.weighty = 1.0;

cpLayout.setConstraints(sp, c);

add(sp);

}

public String getSelectedValue() { return (si); }

public void setSelectedItem(String s) { jl.setSelectedValue(s, true);}

}

}