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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