ekit/com/hexidec/ekit/action/CustomAction.java

   1 /*
   2 GNU Lesser General Public License
   3
   4 CustomAction
   5 Copyright (C) 2000-2003 Howard Kistler
   6
   7 This library is free software; you can redistribute it and/or
   8 modify it under the terms of the GNU Lesser General Public
   9 License as published by the Free Software Foundation; either
  10 version 2.1 of the License, or (at your option) any later version.
  11
  12 This library is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 Lesser General Public License for more details.
  16
  17 You should have received a copy of the GNU Lesser General Public
  18 License along with this library; if not, write to the Free Software
  19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20 */
  21
  22 package com.hexidec.ekit.action;
  23
  24 import java.awt.Color;
  25 import java.awt.event.ActionEvent;
  26 import java.util.Enumeration;
  27 import java.util.Hashtable;
  28 import javax.swing.JColorChooser;
  29 import javax.swing.JTextPane;
  30 import javax.swing.text.SimpleAttributeSet;
  31 import javax.swing.text.StyledEditorKit;
  32 import javax.swing.text.html.HTML;
  33
  34 import com.hexidec.ekit.EkitCore;
  35 import com.hexidec.ekit.component.FontSelectorDialog;
  36 import com.hexidec.ekit.component.SimpleInfoDialog;
  37 import com.hexidec.ekit.component.UserInputAnchorDialog;
  38
  39 import com.hexidec.util.Translatrix;
  40
  41 /** Class for implementing custom HTML insertion actions
  42 */
  43 public class CustomAction extends StyledEditorKit.StyledTextAction
  44 {
  45         protected EkitCore parentEkit;
  46         private   HTML.Tag htmlTag;
  47         private   Hashtable htmlAttribs;
  48
  49         public CustomAction(EkitCore ekit, String actionName, HTML.Tag inTag, Hashtable attribs)
  50         {
  51                 super(actionName);
  52                 parentEkit  = ekit;
  53                 htmlTag     = inTag;
  54                 htmlAttribs = attribs;
  55         }
  56
  57         public CustomAction(EkitCore ekit, String actionName, HTML.Tag inTag)
  58         {
  59                 this(ekit, actionName, inTag, new Hashtable());
  60         }
  61
  62         public void actionPerformed(ActionEvent ae)
  63         {
  64                 Hashtable htmlAttribs2 = new Hashtable();
  65                 JTextPane parentTextPane = parentEkit.getTextPane();
  66                 String selText = parentTextPane.getSelectedText();
  67                 int textLength = -1;
  68                 if(selText != null)
  69                 {
  70                         textLength = selText.length();
  71                 }
  72                 if(selText == null || textLength < 1)
  73                 {
  74                         SimpleInfoDialog sidWarn = new SimpleInfoDialog(parentEkit.getFrame(), "", true, Translatrix.getTranslationString("ErrorNoTextSelected"), SimpleInfoDialog.ERROR);
  75                 }
  76                 else
  77                 {
  78                         int caretOffset = parentTextPane.getSelectionStart();
  79                         int internalTextLength = selText.length();
  80                         String currentAnchor = "";
  81                         // Somewhat ham-fisted code to obtain the first HREF in the selected text,
  82                         // which (if found) is passed to the URL HREF request dialog.
  83                         if(htmlTag.toString().equals(HTML.Tag.A.toString()))
  84                         {
  85                                 SimpleAttributeSet sasText = null;
  86                                 for(int i = caretOffset; i < caretOffset + internalTextLength; i++)
  87                                 {
  88                                         parentTextPane.select(i, i + 1);
  89                                         sasText = new SimpleAttributeSet(parentTextPane.getCharacterAttributes());
  90                                         Enumeration attribEntries1 = sasText.getAttributeNames();
  91                                         while(attribEntries1.hasMoreElements() && currentAnchor.equals(""))
  92                                         {
  93                                                 Object entryKey   = attribEntries1.nextElement();
  94                                                 Object entryValue = sasText.getAttribute(entryKey);
  95                                                 if(entryKey.toString().equals(HTML.Tag.A.toString()))
  96                                                 {
  97                                                         if(entryValue instanceof SimpleAttributeSet)
  98                                                         {
  99                                                                 Enumeration subAttributes = ((SimpleAttributeSet)entryValue).getAttributeNames();
 100                                                                 while(subAttributes.hasMoreElements() && currentAnchor.equals(""))
 101                                                                 {
 102                                                                         Object subKey = subAttributes.nextElement();
 103                                                                         if(subKey.toString().toLowerCase().equals("href"))
 104                                                                         {
 105                                                                                 currentAnchor = ((SimpleAttributeSet)entryValue).getAttribute(subKey).toString();
 106                                                                                 break;
 107                                                                         }
 108                                                                 }
 109                                                         }
 110                                                 }
 111                                         }
 112                                         if(!currentAnchor.equals("")) { break; }
 113                                 }
 114                         }
 115
 116                         parentTextPane.select(caretOffset, caretOffset + internalTextLength);
 117                         SimpleAttributeSet sasTag  = new SimpleAttributeSet();
 118                         SimpleAttributeSet sasAttr = new SimpleAttributeSet();
 119                         if(htmlTag.toString().equals(HTML.Tag.A.toString()))
 120                         {
 121                                 if(!htmlAttribs.containsKey("href"))
 122                                 {
 123                                         UserInputAnchorDialog uidInput = new UserInputAnchorDialog(parentEkit, Translatrix.getTranslationString("AnchorDialogTitle"), true, currentAnchor);
 124                                         String newAnchor = uidInput.getInputText();
 125                                         uidInput.dispose();
 126                                         if(newAnchor != null)
 127                                         {
 128                                                 htmlAttribs2.put("href", newAnchor);
 129                                         }
 130                                         else
 131                                         {
 132                                                 parentEkit.repaint();
 133                                                 return;
 134                                         }
 135                                 }
 136                         }
 137                         else if(htmlTag.toString().equals(HTML.Tag.FONT.toString()))
 138                         {
 139                                 if(htmlAttribs.containsKey("face"))
 140                                 {
 141                                         FontSelectorDialog fsdInput = new FontSelectorDialog(parentEkit.getFrame(), Translatrix.getTranslationString("FontDialogTitle"), true, "face", parentTextPane.getSelectedText());
 142                                         String newFace = fsdInput.getFontName();
 143                                         if(newFace != null)
 144                                         {
 145                                                 htmlAttribs2.put("face", newFace);
 146                                         }
 147                                         else
 148                                         {
 149                                                 parentEkit.repaint();
 150                                                 return;
 151                                         }
 152                                 }
 153
 154                                 else if(htmlAttribs.containsKey("size"))
 155                                 {
 156                                         htmlAttribs2.put("size", new String((String)htmlAttribs.get("size")));
 157                                 }
 158
 159                                 else if(htmlAttribs.containsKey("color"))
 160                                 {
 161                                         Color color = new JColorChooser().showDialog(parentEkit.getFrame(),"Choose Text Color",Color.black);
 162                                       if(color != null)
 163                                         {
 164                                                 String redHex = Integer.toHexString(color.getRed());
 165                                                 if(redHex.length() < 2)
 166                                                 {
 167                                                         redHex = "0" + redHex;
 168                                                 }
 169                                                 String greenHex = Integer.toHexString(color.getGreen());
 170                                                 if(greenHex.length() < 2)
 171                                                 {
 172                                                         greenHex = "0" + greenHex;
 173                                                 }
 174                                                 String blueHex = Integer.toHexString(color.getBlue());
 175                                                 if(blueHex.length() < 2)
 176                                                 {
 177                                                         blueHex = "0" + blueHex;
 178                                                 }
 179                                                 htmlAttribs2.put("color", "#" + redHex + greenHex + blueHex);
 180                                         }
 181                                         else
 182                                         {
 183                                                 parentEkit.repaint();
 184                                                 return;
 185                                         }
 186                                 }
 187
 188                         }
 189
 190                         if(htmlAttribs2.size() > 0)
 191                         {
 192                                 Enumeration attribEntries = htmlAttribs2.keys();
 193                                 while(attribEntries.hasMoreElements())
 194                                 {
 195                                         Object entryKey   = attribEntries.nextElement();
 196                                         Object entryValue = htmlAttribs2.get(entryKey);
 197                                         sasAttr.addAttribute(entryKey, entryValue);
 198                                 }
 199                                 sasTag.addAttribute(htmlTag, sasAttr);
 200                                 parentTextPane.setCharacterAttributes(sasTag, false);
 201                                 parentEkit.refreshOnUpdate();
 202                         }
 203                         parentTextPane.select(caretOffset, caretOffset + internalTextLength);
 204                         parentTextPane.requestFocus();
 205                 }
 206         }
 207 }
 208