Emulator Manager

git-svn-id: svn://qnap.local/TwoTerm/branches/frameless@2465 5590a31f-7b70-45f8-8c82-aa3a8e5f4507

Emulators/EmulatorManager.mm

@@ -0,0 +1,122 @@
+//
+//  EmulatorManager.m
+//  2Term
+//
+//  Created by Kelvin Sherlock on 10/5/2010.
+//  Copyright (c) 2010 __MyCompanyName__. All rights reserved.
+//
+
+#import "Emulator.h"
+#import <AppKit/AppKit.h>
+
+
+unsigned EventCharacters(NSEvent *event, std::u32string &rv)
+{
+    unsigned flags = [event modifierFlags];
+    NSString *chars = [event charactersIgnoringModifiers];
+    unsigned length = [chars length];
+    
+    rv.reserve(length);
+    
+    // chars is expected to have 1 character but could have 0 (dead key)
+    // or multiple
+    for (unsigned i = 0; i < length; ++i)
+    {
+        unichar c = [chars characterAtIndex: i];
+        if (c <= 0x7f)
+        {
+            if (flags & NSAlphaShiftKeyMask)
+            {
+                c = flags & NSShiftKeyMask  ? tolower(c) : toupper(c);
+            }
+            
+            if (flags & NSControlKeyMask)
+                c = CTRL(c);
+        }
+        
+        rv.push_back(c);
+    }
+    
+    return length;
+}
+
+
+
+@implementation EmulatorManager
+
+static NSMutableArray *array = nil;
+
++(id)alloc
+{ 
+    return nil; 
+}
++(id)new
+{
+    return nil;
+}
+
+-(id)init
+{
+    [self release]; 
+    return nil; 
+}
+
+
+// can be called before +load.
++(void)registerClass: (Class)klass
+{
+    if (klass && [klass conformsToProtocol: @protocol(Emulator)])
+    {
+        @synchronized (self)
+        {
+            if (!array)
+                array = [NSMutableArray new];
+
+            [array addObject: klass];
+            
+            [array sortUsingComparator: ^(id lhs, id rhs){
+                NSString *a, *b;
+                
+                a = (NSString *)[lhs name];
+                b = (NSString *)[rhs name];
+                
+                return [a caseInsensitiveCompare: b];
+            }];
+        }
+    }
+    
+}
+
++(NSMenu *)emulatorMenu
+{
+    NSMenu *menu = [[[NSMenu alloc] initWithTitle: @"Terminal Type"] autorelease];
+    
+    @synchronized (self)
+    {
+        unsigned index = 0;
+        for (Class klass in array)
+        {
+            NSMenuItem *item = [[NSMenuItem new] autorelease];
+            
+            [item setTitle: [klass name]];
+            [item setTag: ++index];
+            [menu addItem: item];
+        }
+    }
+    
+    return menu;
+}
+
++(id)emulatorForTag: (unsigned)tag
+{
+    @synchronized(self) 
+    {
+        if (tag && tag <= [array count])
+        {
+            return [array objectAtIndex: tag - 1];
+        }
+    }
+    return nil;
+    
+}
+@end