DefaultFolderTreeCellRenderer


1   package net.suberic.pooka.gui;
2   import net.suberic.pooka.*;
3   import javax.swing.tree.*;
4   import java.awt.*;
5   import javax.mail.MessagingException  ;
6   import javax.swing.JTree  ;
7   
8   /**
9    * This class overrides the default TreeCellRenderer in order to
10   * provide notification of some such, like for unread messages.
11   * Subclasses could probably add additional enhancements.
12   *
13   */
14  
15  public class DefaultFolderTreeCellRenderer extends DefaultTreeCellRenderer {
16    /* grr.  it looks like the DefaultTreeCellRenderer returns the same
17       component, which is annoying.  that means that we have to reset the
18       font information each time.  or at least, that's what i'm doing. :)
19    */
20  
21  
22    //private boolean hasFocus;
23  
24    Font specialFont = null;
25  
26    Font defaultFont = null;
27  
28    public DefaultFolderTreeCellRenderer() {
29      super();
30    }
31    public Component getTreeCellRendererComponent(JTree   tree, Object   value, boolean sel, boolean expanded, boolean leaf, int row, boolean hasFocus) {
32      super.getTreeCellRendererComponent(tree,value,sel,expanded,leaf,row,hasFocus);
33      // from super().
34      /*
35      String stringValue = tree.convertValueToText(value, sel,
36                                                   expanded, leaf, row, hasFocus);
37  
38      this.hasFocus = hasFocus;
39  
40      setText(stringValue);
41      if(sel)
42        setForeground(getTextSelectionColor());
43      else
44        setForeground(getTextNonSelectionColor());
45  
46      // There needs to be a way to specify disabled icons.
47      if (!tree.isEnabled()) {
48        setEnabled(false);
49        if (leaf) {
50          setDisabledIcon(getLeafIcon());
51        } else if (expanded) {
52          setDisabledIcon(getOpenIcon());
53        } else {
54          setDisabledIcon(getClosedIcon());
55        }
56      }
57      else {
58        setEnabled(true);
59        if (leaf) {
60          setIcon(getLeafIcon());
61        } else if (expanded) {
62          setIcon(getOpenIcon());
63        } else {
64          setIcon(getClosedIcon());
65        }
66      }
67  
68      selected = sel;
69      */
70  
71      // end part from DefaultTreeCellRenderer
72  
73      TreePath tp = tree.getPathForRow(row);
74  
75      if (tp != null && tp.getLastPathComponent() instanceof FolderNode) {
76        FolderNode node = (FolderNode)tp.getLastPathComponent();
77  
78        if (node.getFolderInfo().hasNewMessages())
79          setText("* " + getText() + " *");
80  
81        if (isSpecial(node)) {
82          setFontToSpecial();
83        } else {
84          setFontToDefault();
85        }
86      } else {
87        setFontToDefault();
88      }
89  
90      return this;
91    }
92  
93    public void setFontToDefault() {
94      if (getDefaultFont() != null) {
95        setFont(getDefaultFont());
96      } else {
97        // create the new font.
98        String   fontStyle;
99        fontStyle = Pooka.getProperty("FolderTree.readStyle", "");
100 
101       Font f = null;
102 
103       if (this.getFont() == null)
104         return;
105 
106       if (fontStyle.equalsIgnoreCase("BOLD"))
107         f = this.getFont().deriveFont(Font.BOLD);
108       else if (fontStyle.equalsIgnoreCase("ITALIC"))
109         f = this.getFont().deriveFont(Font.ITALIC);
110       else if (fontStyle.equals(""))
111         f = this.getFont().deriveFont(Font.PLAIN);
112 
113       if (f == null)
114         f = this.getFont();
115 
116       setDefaultFont(f);
117       this.setFont(f);
118     }
119 
120   }
121 
122   /**
123    * This sets the font of the displayed component to the special font.
124    */
125   public void setFontToSpecial() {
126     if (getSpecialFont() != null) {
127       setFont(getSpecialFont());
128     } else {
129       // create the new font.
130       String   fontStyle;
131       fontStyle = Pooka.getProperty("FolderTree.UnreadStyle", "BOLD");
132 
133       Font f = null;
134 
135       Font thisFont = this.getFont();
136       if (thisFont != null) {
137         if (fontStyle.equalsIgnoreCase("BOLD"))
138           f = thisFont.deriveFont(Font.BOLD);
139         else if (fontStyle.equalsIgnoreCase("ITALIC"))
140           f = thisFont.deriveFont(Font.ITALIC);
141         else if (fontStyle.equalsIgnoreCase("PLAIN"))
142           f = thisFont.deriveFont(Font.PLAIN);
143 
144         if (f == null)
145           f = thisFont;
146 
147         setSpecialFont(f);
148         this.setFont(f);
149       }
150     }
151 
152   }
153 
154   /**
155    * Returns whether or not we should render the default style or a
156    * special style.
157    */
158   public boolean isSpecial (MailTreeNode node) {
159     if (node instanceof FolderNode)
160       return (node != null && ((FolderNode)node).getFolderInfo().hasUnread());
161     else
162       return false;
163   }
164 
165   public Font getSpecialFont() {
166     return specialFont;
167   }
168 
169   public void setSpecialFont(Font newValue) {
170     specialFont = newValue;
171   }
172 
173   public Font getDefaultFont() {
174     return defaultFont;
175   }
176 
177   public void setDefaultFont(Font newValue) {
178     defaultFont = newValue;
179   }
180 
181 
182   /**
183    * Returns the color the text is drawn with when the node is selected.
184    */
185   public Color getTextSelectionColor() {
186     MainPanel mp = Pooka.getMainPanel();
187     if (mp != null) {
188       FolderPanel fp = mp.getFolderPanel();
189 
190       if (fp != null) {
191         javax.swing.plaf.metal.MetalTheme   currentTheme = fp .getCurrentTheme();
192         if (currentTheme != null) {
193           return currentTheme.getHighlightedTextColor();
194         }
195       }
196     }
197     return super.getTextSelectionColor();
198   }
199 
200   /**
201    * Returns the color the text is drawn with when the node isn't selected.
202    */
203   public Color getTextNonSelectionColor() {
204     MainPanel mp = Pooka.getMainPanel();
205     if (mp != null) {
206       FolderPanel fp = mp.getFolderPanel();
207 
208       if (fp != null) {
209         javax.swing.plaf.metal.MetalTheme   currentTheme = fp .getCurrentTheme();
210         if (currentTheme != null) {
211           return currentTheme.getUserTextColor();
212         }
213       }
214     }
215     return super.getTextNonSelectionColor();
216   }
217 
218   /**
219    * Returns the color to use for the background if node is selected.
220    */
221   public Color getBackgroundSelectionColor() {
222     MainPanel mp = Pooka.getMainPanel();
223     if (mp != null) {
224       FolderPanel fp = mp.getFolderPanel();
225 
226       if (fp != null) {
227         javax.swing.plaf.metal.MetalTheme   currentTheme = fp .getCurrentTheme();
228         if (currentTheme != null) {
229           return currentTheme.getTextHighlightColor();
230         }
231       }
232     }
233     return super.getBackgroundSelectionColor();
234   }
235 
236   /**
237    * Returns the background color to be used for non selected nodes.
238    */
239   public Color getBackgroundNonSelectionColor() {
240     MainPanel mp = Pooka.getMainPanel();
241     if (mp != null) {
242       FolderPanel fp = mp.getFolderPanel();
243 
244       if (fp != null) {
245         javax.swing.plaf.metal.MetalTheme   currentTheme = fp .getCurrentTheme();
246 
247         if (currentTheme != null) {
248           return currentTheme.getWindowBackground();
249         }
250       }
251     }
252 
253     return super.getBackgroundNonSelectionColor();
254   }
255 
256   /**
257    * Returns the color the border is drawn.
258    */
259   public Color getBorderSelectionColor() {
260     MainPanel mp = Pooka.getMainPanel();
261     if (mp != null) {
262       FolderPanel fp = mp.getFolderPanel();
263 
264       if (fp != null) {
265         javax.swing.plaf.metal.MetalTheme   currentTheme = fp .getCurrentTheme();
266         if (currentTheme != null) {
267           return currentTheme.getFocusColor();
268         }
269       }
270     }
271 
272     return super.getBorderSelectionColor();
273   }
274 
275 
276 } //end class DefaultFolderTreeCellRenderer
277 
278
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