diff --git a/darwin/button.m b/darwin/button.m
deleted file mode 100644
index f22e82cf..00000000
--- a/darwin/button.m
+++ /dev/null
@@ -1,41 +0,0 @@
-// 7 april 2015
-#import "uipriv_darwin.h"
-
-
-struct button {
-	uiButton b;
-	NSButton *button;
-	buttonDelegate *delegate;
-};
-
-static void defaultOnClicked(uiButton *b, void *data)
-{
-	// do nothing
-}
-
-static void destroy(void *data)
-{
-	struct button *b = (struct button *) data;
-
-	[b->button setTarget:nil];
-	[b->delegate release];
-	uiFree(b);
-}
-
-
-uiButton *uiNewButton(const char *text)
-{
-	struct button *b;
-
-	b = uiNew(struct button);
-
-	uiDarwinMakeControl(uiControl(b), [NSButton class], NO, NO, destroy, b);
-
-	b->button = (NSButton *) uiControlHandle(uiControl(b));
-
-	uiButton(b)->Text = buttonText;
-	uiButton(b)->SetText = buttonSetText;
-	uiButton(b)->OnClicked = buttonOnClicked;
-
-	return uiButton(b);
-}
diff --git a/darwin/checkbox.m b/darwin/checkbox.m
deleted file mode 100644
index 261baa78..00000000
--- a/darwin/checkbox.m
+++ /dev/null
@@ -1,121 +0,0 @@
-// 7 april 2015
-#import "uipriv_darwin.h"
-
-@interface checkboxDelegate : NSObject {
-	uiCheckbox *c;
-	void (*onToggled)(uiCheckbox *, void *);
-	void *onToggledData;
-}
-- (IBAction)checkboxToggled:(id)sender;
-- (void)setCheckbox:(uiCheckbox *)newc;
-- (void)setOnToggled:(void (*)(uiCheckbox *, void *))f data:(void *)data;
-@end
-
-@implementation checkboxDelegate
-
-- (IBAction)checkboxToggled:(id)sender
-{
-	(*(self->onToggled))(self->c, self->onToggledData);
-}
-
-- (void)setCheckbox:(uiCheckbox *)newc
-{
-	self->c = newc;
-}
-
-- (void)setOnToggled:(void (*)(uiCheckbox *, void *))f data:(void *)data
-{
-	self->onToggled = f;
-	self->onToggledData = data;
-}
-
-@end
-
-struct checkbox {
-	uiCheckbox c;
-	NSButton *checkbox;
-	checkboxDelegate *delegate;
-};
-
-static void defaultOnToggled(uiCheckbox *c, void *data)
-{
-	// do nothing
-}
-
-static void destroy(void *data)
-{
-	struct checkbox *c = (struct checkbox *) data;
-
-	[c->checkbox setTarget:nil];
-	[c->delegate release];
-	uiFree(c);
-}
-
-static char *checkboxText(uiCheckbox *cc)
-{
-	struct checkbox *c = (struct checkbox *) cc;
-
-	return uiDarwinNSStringToText([c->checkbox title]);
-}
-
-static void checkboxSetText(uiCheckbox *cc, const char *text)
-{
-	struct checkbox *c = (struct checkbox *) cc;
-
-	[c->checkbox setTitle:toNSString(text)];
-}
-
-static void checkboxOnToggled(uiCheckbox *cc, void (*f)(uiCheckbox *, void *), void *data)
-{
-	struct checkbox *c = (struct checkbox *) cc;
-
-	[c->delegate setOnToggled:f data:data];
-}
-
-static int checkboxChecked(uiCheckbox *cc)
-{
-	struct checkbox *c = (struct checkbox *) cc;
-
-	return [c->checkbox state] == NSOnState;
-}
-
-static void checkboxSetChecked(uiCheckbox *cc, int checked)
-{
-	struct checkbox *c = (struct checkbox *) cc;
-	NSInteger state;
-
-	state = NSOnState;
-	if (!checked)
-		state = NSOffState;
-	[c->checkbox setState:state];
-}
-
-uiCheckbox *uiNewCheckbox(const char *text)
-{
-	struct checkbox *c;
-
-	c = uiNew(struct checkbox);
-
-	uiDarwinMakeControl(uiControl(c), [NSButton class], NO, NO, destroy, c);
-
-	c->checkbox = (NSButton *) uiControlHandle(uiControl(c));
-
-	[c->checkbox setTitle:toNSString(text)];
-	[c->checkbox setButtonType:NSSwitchButton];
-	[c->checkbox setBordered:NO];
-	setStandardControlFont(c->checkbox);
-
-	c->delegate = [checkboxDelegate new];
-	[c->checkbox setTarget:c->delegate];
-	[c->checkbox setAction:@selector(checkboxToggled:)];
-	[c->delegate setCheckbox:uiCheckbox(c)];
-	[c->delegate setOnToggled:defaultOnToggled data:NULL];
-
-	uiCheckbox(c)->Text = checkboxText;
-	uiCheckbox(c)->SetText = checkboxSetText;
-	uiCheckbox(c)->OnToggled = checkboxOnToggled;
-	uiCheckbox(c)->Checked = checkboxChecked;
-	uiCheckbox(c)->SetChecked = checkboxSetChecked;
-
-	return uiCheckbox(c);
-}
diff --git a/redo/darwin/checkbox.m b/redo/darwin/checkbox.m
index 91027c54..75cde823 100644
--- a/redo/darwin/checkbox.m
+++ b/redo/darwin/checkbox.m
@@ -1,11 +1,40 @@
 // 10 june 2015
 #include "uipriv_darwin.h"
 
-struct checkbox {
-	uiCheckbox c;
-	OSTYPE *OSHANDLE;
+@interface checkboxDelegate : NSObject {
+	uiCheckbox *c;
 	void (*onToggled)(uiCheckbox *, void *);
 	void *onToggledData;
+}
+- (IBAction)checkboxToggled:(id)sender;
+- (void)setCheckbox:(uiCheckbox *)newc;
+- (void)setOnToggled:(void (*)(uiCheckbox *, void *))f data:(void *)data;
+@end
+
+@implementation checkboxDelegate
+
+- (IBAction)checkboxToggled:(id)sender
+{
+	(*(self->onToggled))(self->c, self->onToggledData);
+}
+
+- (void)setCheckbox:(uiCheckbox *)newc
+{
+	self->c = newc;
+}
+
+- (void)setOnToggled:(void (*)(uiCheckbox *, void *))f data:(void *)data
+{
+	self->onToggled = f;
+	self->onToggledData = data;
+}
+
+@end
+
+struct checkbox {
+	uiCheckbox c;
+	NSButton *checkbox;
+	checkboxDelegate *delegate;
 };
 
 uiDefineControlType(uiCheckbox, uiTypeCheckbox, struct checkbox)
@@ -14,7 +43,7 @@ static uintptr_t checkboxHandle(uiControl *cc)
 {
 	struct checkbox *c = (struct checkbox *) cc;
 
-	return (uintptr_t) (c->OSHANDLE);
+	return (uintptr_t) (c->checkbox);
 }
 
 static void defaultOnToggled(uiCheckbox *c, void *data)
@@ -26,49 +55,59 @@ static char *checkboxText(uiCheckbox *cc)
 {
 	struct checkbox *c = (struct checkbox *) cc;
 
-	return PUT_CODE_HERE;
+	return uiDarwinNSStringToText([c->checkbox title]);
 }
 
 static void checkboxSetText(uiCheckbox *cc, const char *text)
 {
 	struct checkbox *c = (struct checkbox *) cc;
 
-	PUT_CODE_HERE;
-	// changing the text might necessitate a change in the checkbox's size
-	uiControlQueueResize(uiControl(c));
+	[c->checkbox setTitle:toNSString(text)];
 }
 
 static void checkboxOnToggled(uiCheckbox *cc, void (*f)(uiCheckbox *, void *), void *data)
 {
 	struct checkbox *c = (struct checkbox *) cc;
 
-	c->onToggled = f;
-	c->onToggledData = data;
+	[c->delegate setOnToggled:f data:data];
 }
 
 static int checkboxChecked(uiCheckbox *cc)
 {
 	struct checkbox *c = (struct checkbox *) cc;
 
-	return PUT_CODE_HERE;
+	return [c->checkbox state] == NSOnState;
 }
 
 static void checkboxSetChecked(uiCheckbox *cc, int checked)
 {
 	struct checkbox *c = (struct checkbox *) cc;
+	NSInteger state;
 
-	PUT_CODE_HERE;
+	state = NSOnState;
+	if (!checked)
+		state = NSOffState;
+	[c->checkbox setState:state];
 }
 
 uiCheckbox *uiNewCheckbox(const char *text)
 {
 	struct checkbox *c;
 
-	c = (struct checkbox *) MAKE_CONTROL_INSTANCE(uiTypeCheckbox());
+	c = (struct checkbox *) uiNewControl(uiTypeCheckbox());
 
-	PUT_CODE_HERE;
+	// TODO make a macro for the below
+	c->checkbox = [[NSCheckbox alloc] initWithFrame:NSZeroRect];
+	[c->checkbox setTitle:toNSString(text)];
+	[c->checkbox setButtonType:NSSwitchButton];
+	[c->checkbox setBordered:NO];
+	uiDarwinMakeSingleViewControl(uiControl(c), c->checkbox, YES);
 
-	c->onToggled = defaultOnToggled;
+	c->delegate = [checkboxDelegate new];
+	[c->checkbox setTarget:c->delegate];
+	[c->checkbox setAction:@selector(checkboxToggled:)];
+	[c->delegate setCheckbox:uiCheckbox(c)];
+	[c->delegate setOnToggled:defaultOnToggled data:NULL];
 
 	uiControl(c)->Handle = checkboxHandle;