[3952] | 1 | /* |
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| 2 | * SimplyHTML, a word processor based on Java, HTML and CSS |
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| 3 | * Copyright (C) 2002 Ulrich Hilger |
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| 4 | * |
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| 5 | * This program is free software; you can redistribute it and/or |
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| 6 | * modify it under the terms of the GNU General Public License |
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| 7 | * as published by the Free Software Foundation; either version 2 |
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| 8 | * of the License, or (at your option) any later version. |
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| 9 | * |
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| 10 | * This program is distributed in the hope that it will be useful, |
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 13 | * GNU General Public License for more details. |
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| 14 | * |
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| 15 | * You should have received a copy of the GNU General Public License |
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| 16 | * along with this program; if not, write to the Free Software |
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| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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| 18 | */ |
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| 19 | |
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| 20 | package nu.fw.jeti.plugins.xhtml.fontchooser; |
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| 21 | |
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| 22 | import java.awt.BorderLayout; |
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| 23 | import java.awt.Color; |
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| 24 | import java.awt.Dimension; |
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| 25 | import java.awt.FlowLayout; |
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| 26 | import java.awt.event.ActionEvent; |
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| 27 | import java.awt.event.ActionListener; |
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| 28 | import java.util.Enumeration; |
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| 29 | import java.util.EventListener; |
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| 30 | import java.util.EventObject; |
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| 31 | import java.util.Vector; |
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| 32 | |
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| 33 | import javax.swing.*; |
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| 34 | import javax.swing.text.AttributeSet; |
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| 35 | import javax.swing.text.SimpleAttributeSet; |
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| 36 | import javax.swing.text.StyleConstants; |
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| 37 | |
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| 38 | import nu.fw.jeti.util.I18N; |
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| 39 | |
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| 40 | /** |
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| 41 | * a panel to display and change a color setting |
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| 42 | * |
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| 43 | * @author Ulrich Hilger |
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| 44 | * @author Light Development |
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| 45 | * @author <a href="http://www.lightdev.com">http://www.lightdev.com</a> |
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| 46 | * @author <a href="mailto:info@lightdev.com">info@lightdev.com</a> |
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| 47 | * @author published under the terms and conditions of the |
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| 48 | * GNU General Public License, |
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| 49 | * for details see file gpl.txt in the distribution |
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| 50 | * package of this software |
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| 51 | * |
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| 52 | * @version stage 9, release 4, January 12, 2003 |
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| 53 | */ |
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| 54 | public class ColorPanel extends JPanel implements ActionListener, AttributeComponent |
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| 55 | { |
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| 56 | |
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| 57 | /** the component showing the chosen color */ |
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| 58 | JTextField colorDisplay = new JTextField(); |
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| 59 | |
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| 60 | /** default color */ |
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| 61 | private Color defaultColor; |
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| 62 | |
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| 63 | /** the attribute key, this component returns values for */ |
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| 64 | private Object attributeKey; |
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| 65 | |
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| 66 | /** value to compare for determining changes */ |
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| 67 | private Color originalColor; |
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| 68 | |
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| 69 | /** indicates if setValue is called initially */ |
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| 70 | private int setValCount = 0; |
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| 71 | |
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| 72 | /** |
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| 73 | * construct a color panel |
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| 74 | * |
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| 75 | * @param title the title of the color panel |
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| 76 | * @param col the color to be displayed first |
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| 77 | * @param titleFont font for title |
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| 78 | * @param key the attribute key this component shall return color values for |
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| 79 | */ |
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| 80 | public ColorPanel(String title, Color col) |
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| 81 | { |
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| 82 | super(new BorderLayout(5, 5)); |
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| 83 | |
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| 84 | this.defaultColor = col; |
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| 85 | this.attributeKey = title; |
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| 86 | |
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| 87 | /** adjust the color display */ |
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| 88 | colorDisplay.setBackground(col); |
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| 89 | Dimension dim = new Dimension(20, 15); |
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| 90 | colorDisplay.setMinimumSize(dim); |
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| 91 | colorDisplay.setMaximumSize(dim); |
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| 92 | colorDisplay.setPreferredSize(dim); |
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| 93 | colorDisplay.setEditable(false); |
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| 94 | |
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| 95 | /** a button to open a color chooser window */ |
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| 96 | JButton browseButton = new JButton(); |
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| 97 | browseButton.setText("..."); |
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| 98 | dim = new Dimension(20, 15); |
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| 99 | browseButton.setMinimumSize(dim); |
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| 100 | browseButton.setMaximumSize(dim); |
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| 101 | browseButton.setPreferredSize(dim); |
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| 102 | browseButton.addActionListener(this); |
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| 103 | |
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| 104 | /** a helper panel for proper component placement */ |
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| 105 | JPanel eastPanel = new JPanel(new FlowLayout()); |
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| 106 | eastPanel.add(colorDisplay); |
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| 107 | eastPanel.add(browseButton); |
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| 108 | |
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| 109 | /** set the title */ |
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| 110 | if ((title != null) && (title.length() > 0)) |
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| 111 | { |
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| 112 | JLabel titleLabel = new JLabel(title); |
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| 113 | titleLabel.setFont(UIManager.getFont("TextField.font")); |
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| 114 | add(titleLabel, BorderLayout.WEST); |
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| 115 | add(eastPanel, BorderLayout.EAST); |
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| 116 | } |
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| 117 | else |
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| 118 | { |
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| 119 | add(eastPanel, BorderLayout.WEST); |
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| 120 | } |
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| 121 | |
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| 122 | } |
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| 123 | |
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| 124 | /** |
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| 125 | * get the selected color |
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| 126 | * |
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| 127 | * @return the selected color |
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| 128 | */ |
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| 129 | public Color getColor() |
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| 130 | { |
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| 131 | return colorDisplay.getBackground(); |
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| 132 | } |
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| 133 | |
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| 134 | /** |
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| 135 | * set the selected color |
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| 136 | * |
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| 137 | * @param color the selected color |
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| 138 | */ |
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| 139 | private void setColor(Color color) |
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| 140 | { |
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| 141 | //System.out.println("ColorPanel setColor attributeKey=" + attributeKey + ", color=" + color); |
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| 142 | colorDisplay.setBackground(color); |
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| 143 | if (++setValCount < 2) |
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| 144 | { |
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| 145 | originalColor = color; |
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| 146 | } |
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| 147 | fireColorChanged(); |
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| 148 | } |
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| 149 | |
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| 150 | /** |
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| 151 | * open a color chooser when a 'Browse' button |
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| 152 | * is clicked and change the associated color |
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| 153 | * display accordingly, when another color |
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| 154 | * is selected from the color chooser |
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| 155 | */ |
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| 156 | public void actionPerformed(ActionEvent e) |
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| 157 | { |
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| 158 | Color color = JColorChooser.showDialog(this, I18N.gettext("xhtml.Select_Color"), colorDisplay.getBackground()); |
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| 159 | if (color != null) |
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| 160 | { |
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| 161 | setColor(color); |
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| 162 | } |
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| 163 | } |
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| 164 | |
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| 165 | /** |
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| 166 | * set the value of this <code>AttributeComponent</code> |
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| 167 | * |
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| 168 | * @param a the set of attributes possibly having an |
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| 169 | * attribute this component can display |
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| 170 | * |
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| 171 | * @return true, if the set of attributes had a matching attribute, |
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| 172 | * false if not |
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| 173 | */ |
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| 174 | public boolean setValue(AttributeSet a) |
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| 175 | { |
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| 176 | //System.out.println(a); |
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| 177 | boolean success = false; |
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| 178 | if (defaultColor == Color.black) |
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| 179 | { |
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| 180 | //if( a.isDefined(StyleConstants.Foreground)) { |
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| 181 | Color c = StyleConstants.getForeground(a); |
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| 182 | if (c != null) |
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| 183 | { |
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| 184 | //System.out.println("ColorPanel setValue attributeKey=" + attributeKey + ", a=" + a.getAttribute(attributeKey)); |
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| 185 | //String value = a.getAttribute(getAttributeKey()).toString(); |
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| 186 | //setValue(value); |
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| 187 | setColor(c); |
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| 188 | success = true; |
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| 189 | } |
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| 190 | else |
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| 191 | setColor(defaultColor); |
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| 192 | } |
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| 193 | else |
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| 194 | { |
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| 195 | Color c = StyleConstants.getBackground(a); |
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| 196 | if (c != null) |
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| 197 | { |
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| 198 | //if( a.isDefined(StyleConstants.Background)) { |
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| 199 | //System.out.println("ColorPanel setValue attributeKey=" + attributeKey + ", a=" + a.getAttribute(attributeKey)); |
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| 200 | //String value = a.getAttribute(getAttributeKey()).toString(); |
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| 201 | //setValue(value); |
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| 202 | setColor(c); |
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| 203 | success = true; |
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| 204 | } |
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| 205 | else |
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| 206 | setColor(defaultColor); |
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| 207 | } |
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| 208 | |
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| 209 | return success; |
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| 210 | } |
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| 211 | |
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| 212 | // public void setValue(String value) { |
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| 213 | // //System.out.println("ColorPanel setValue value=" + value); |
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| 214 | // try { |
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| 215 | // setColor(new Color(Integer.parseInt( |
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| 216 | // value.toString().substring(1).toUpperCase(), 16))); |
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| 217 | // } |
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| 218 | // catch(Exception e) { |
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| 219 | // try { |
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| 220 | // //setColor(Util.styleSheet().getForeground(a)); |
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| 221 | // //System.out.println("ColorPanel setValue value=" + value + "=" + Color.getColor(value)); |
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| 222 | // setColor(Color.getColor(value)); |
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| 223 | // } |
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| 224 | // catch(Exception e2) { |
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| 225 | // Util.errMsg(null, null, e2); |
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| 226 | // } |
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| 227 | // } |
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| 228 | // } |
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| 229 | |
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| 230 | public String getAttr() |
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| 231 | { |
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| 232 | String color = "#" + Integer.toHexString(getColor().getRGB()).substring(2); |
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| 233 | return color; |
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| 234 | } |
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| 235 | |
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| 236 | /** |
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| 237 | * get the value of this <code>AttributeComponent</code> |
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| 238 | * |
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| 239 | * @return the value selected from this component |
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| 240 | */ |
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| 241 | public AttributeSet getValue() |
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| 242 | { |
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| 243 | SimpleAttributeSet set = new SimpleAttributeSet(); |
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| 244 | Color value = getColor(); |
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| 245 | if (value != originalColor) |
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| 246 | { |
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| 247 | // String color = "#" + Integer.toHexString( |
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| 248 | // value.getRGB()).substring(2); |
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| 249 | // try { |
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| 250 | // Util.styleSheet().addCSSAttribute(set, |
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| 251 | // (CSS.Attribute) getAttributeKey(), color); |
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| 252 | // } |
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| 253 | // catch(Exception e) { |
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| 254 | // set.addAttribute(getAttributeKey(), color); |
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| 255 | // } |
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| 256 | //if (attributeKey.equals("foreground")) StyleConstants.setForeground(set, value); |
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| 257 | if(defaultColor==Color.BLACK) StyleConstants.setForeground(set, value); |
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| 258 | else StyleConstants.setBackground(set, value); |
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| 259 | //System.out.println("ColorPanel getValue color=" + color); |
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| 260 | } |
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| 261 | return set; |
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| 262 | } |
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| 263 | |
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| 264 | public AttributeSet getValue(boolean includeUnchanged) |
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| 265 | { |
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| 266 | if (includeUnchanged) |
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| 267 | { |
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| 268 | SimpleAttributeSet set = new SimpleAttributeSet(); |
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| 269 | Color value = getColor(); |
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| 270 | // String color = "#" + Integer.toHexString( |
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| 271 | // value.getRGB()).substring(2); |
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| 272 | // try { |
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| 273 | // Util.styleSheet().addCSSAttribute(set, |
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| 274 | // (CSS.Attribute) getAttributeKey(), color); |
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| 275 | // } |
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| 276 | // catch(Exception e) { |
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| 277 | // set.addAttribute(getAttributeKey(), color); |
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| 278 | // } |
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| 279 | //if (attributeKey.equals("foreground")) |
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| 280 | if(defaultColor==Color.BLACK) StyleConstants.setForeground(set, value); |
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| 281 | else StyleConstants.setBackground(set, value); |
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| 282 | |
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| 283 | //System.out.println("ColorPanel getValue color=" + color); |
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| 284 | return set; |
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| 285 | } |
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| 286 | else |
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| 287 | { |
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| 288 | return getValue(); |
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| 289 | } |
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| 290 | } |
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| 291 | |
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| 292 | /** |
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| 293 | * get the attribute key this object was created for |
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| 294 | * |
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| 295 | * @return the attribute key this ColorPanel returns values for |
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| 296 | */ |
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| 297 | public Object getAttributeKey() |
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| 298 | { |
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| 299 | return attributeKey; |
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| 300 | } |
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| 301 | |
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| 302 | /* -------------- event listener implementation start ----------- */ |
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| 303 | |
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| 304 | /** the listeners for ColorPanelEvents */ |
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| 305 | private Vector listeners = new Vector(0); |
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| 306 | |
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| 307 | /** |
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| 308 | * add an event listener. |
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| 309 | * |
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| 310 | * @param listener the event listener to add |
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| 311 | */ |
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| 312 | public void addColorPanelListener(ColorPanelListener listener) |
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| 313 | { |
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| 314 | listeners.addElement(listener); |
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| 315 | } |
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| 316 | |
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| 317 | /** |
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| 318 | * remove an event listener. |
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| 319 | * |
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| 320 | * @param listener the event listener to remove |
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| 321 | */ |
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| 322 | public void removeColorPanelListener(ColorPanelListener listener) |
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| 323 | { |
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| 324 | listeners.removeElement(listener); |
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| 325 | } |
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| 326 | |
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| 327 | /** fire a color changed event to all registered listeners */ |
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| 328 | void fireColorChanged() |
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| 329 | { |
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| 330 | Enumeration listenerList = listeners.elements(); |
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| 331 | while (listenerList.hasMoreElements()) |
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| 332 | { |
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| 333 | ((ColorPanelListener) listenerList.nextElement()).colorChanged(new ColorPanelEvent(this)); |
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| 334 | } |
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| 335 | } |
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| 336 | |
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| 337 | /** the event object definition for ColorPanels */ |
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| 338 | static class ColorPanelEvent extends EventObject |
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| 339 | { |
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| 340 | public ColorPanelEvent(Object source) |
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| 341 | { |
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| 342 | super(source); |
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| 343 | } |
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| 344 | } |
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| 345 | |
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| 346 | /** the event listener definition for ColorPanels */ |
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| 347 | interface ColorPanelListener extends EventListener |
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| 348 | { |
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| 349 | public void colorChanged(ColorPanelEvent e); |
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| 350 | } |
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| 351 | |
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| 352 | /* -------------- event listener implementation end ----------- */ |
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| 353 | |
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| 354 | } |
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| 355 | /* |
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| 356 | * Overrides for emacs |
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| 357 | * Local variables: |
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| 358 | * tab-width: 4 |
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| 359 | * End: |
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| 360 | */ |
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