|
1
4 package gnu.jemacs.buffer;
5 import gnu.lists.LList;
6 import gnu.mapping.WrappedException;
7 import java.awt.Color  ;
8
9 public abstract class EToolkit
10 {
11 public static final String swingToolkit = "gnu.jemacs.swing.SwingToolkit";
12 public static final String swtToolkit = "gnu.jemacs.swt.SwtToolkit";
13 public static String defaultToolkit = swingToolkit;
14 static EToolkit instance;
15 static Class toolkitClass;
16
17 public static EToolkit getInstance ()
18 {
19 EToolkit inst = instance;
20 if (inst != null)
21 return inst;
22 String name = System.getProperty("gnu.jemacs.toolkit");
23 if (name == null)
24 name = defaultToolkit;
25 else if (name.equals("swing"))
26 name = swingToolkit;
27 else if (name.equals("swt"))
28 name = swtToolkit;
29 return getInstance(name);
30 }
31
32 public static synchronized EToolkit getInstance (String toolkitClassname)
33 {
34 if (instance == null)
35 {
36 try
37 {
38 if (toolkitClass == null)
39 toolkitClass = Class.forName(toolkitClassname);
40 instance = (EToolkit) toolkitClass.newInstance();
41 }
42 catch (Exception ex)
43 {
44 throw new WrappedException(ex);
45 }
46 }
47 return instance;
48 }
49
50 public abstract Buffer newBuffer (String name);
51
52 public abstract EFrame newFrame(Buffer buffer);
53
54 public abstract EMenu getMenu(LList menubar);
55
56
57 public abstract Object getFace(String name, boolean create);
58
59 public void setUnderline (Object face, boolean underline)
60 {
61 }
63
64 public void setBold (Object face, boolean bold)
65 {
66 }
68
69 public void setForeground (Object face, Color foreground)
70 {
71 }
73
74 public void setBackground (Object face, Color background)
75 {
76 }
78
79 public abstract Object getIgnoreAction();
80 }
81 |
Popular Tags |
Java API By Example, From Geeks To Geeks.