使用FreeMind

准备用思维导图写一个Subversion的路线图，开始想用XMind，因为它很漂亮，但是用了一会儿才发现似乎不能导出为可点击的HTML，所以放弃。还是去寻找传统一点的FreeMind，但是竟然无法保存，无论是Ctrl+s还是菜单里的Save都没有任何反应。在google里搜了一下“FreeMind 无法保存”，没找到结果，于是跑到官方网站去看FAQ，才发现有一个明确的答复，如下：

The most obvious indication is that you click on open/save/save as and nothing happens. What is happening is that the file browser window is failing to open. There are two fixes; Either change JAVA_HOME to point to a JRE rather than a JDK or edit the Freemind.bat file to use the absolute path to the correct java and start Freemind with the bat file. It will be something like “C:\Program Files\Java\jre1.6.0_05\bin\java” instead of just java. Note the use of quote marks and that your java path may not be the same as the example.

照着做了，可是还是没有效果，不过提示我运行Freemind.bat，结果发现保存时的错误为：

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
        at javax.swing.ImageIcon.(ImageIcon.java:161)
        at javax.swing.ImageIcon.(ImageIcon.java:147)

原来如此，可能是AWT的问题，于是我尝试修改LookAndFeel，在Tools->Preference->Appearance-> LookAndFeel中，我设置为Gtk，结果重启后就好了，样子很难看，想去试一下别的，发现都不行，只好留着Gtk了。但是总算能用了。为什么我的JRE只在Gtk下工作正常？下次装一个新的JDK再看看。