Laid the foundation for padding.

uipriv.h

@@ -10,6 +10,10 @@ struct uiSize {
 	intmax_t height;
 };
 
+#define uiSizingCommon \
+	intmax_t xPadding; \
+	intmax_t yPadding;
+
 struct uiControl {
 	void (*destroy)(uiControl *);
 	uintptr_t (*handle)(uiControl *);

uipriv_darwin.h

@@ -8,10 +8,6 @@
 #define toNSString(str) [NSString stringWithUTF8String:(str)]
 #define fromNSString(str) [(str) UTF8String]
 
-// TODO move this to the right place
-struct uiSizing {
-};
-
 // TODO see if we can override alloc instead
 #ifdef uiLogAllocations
 #import <stdio.h>
@@ -36,6 +32,9 @@ struct uiSizing {
 extern void setStandardControlFont(NSControl *);
 
 // container_darwin.m
+struct uiSizing {
+	uiSizingCommon
+};
 @interface uiContainer : NSView
 // TODO rename to uiChild
 @property uiControl *child;

uipriv_unix.h

@@ -7,11 +7,10 @@
 #include "uipriv.h"
 #include "ui_unix.h"
 
-// TODO move this to the right place
-struct uiSizing {
-};
-
 // container_unix.c
+struct uiSizing {
+	uiSizingCommon
+};
 #define uiContainerType (uiContainer_get_type())
 #define uiContainer(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), uiContainerType, uiContainer))
 #define uiIsContainer(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), uiContainerType))

uipriv_windows.h

@@ -55,6 +55,7 @@ extern WCHAR *windowText(HWND);
 // container_windows.c
 extern BOOL sharedWndProc(HWND, UINT, WPARAM, LPARAM, LRESULT *);
 struct uiSizing {
+	uiSizingCommon
 	int baseX;
 	int baseY;
 	LONG internalLeading;