#include <stdarg.h>

#include "lx.h"

#include "proto.h"
#include "internal.h"

void lx_ChangeWindowAttributes(LX_CONN *xc, LX_XID window, ...)
{
 va_list ap;
 int key;
 LX_XID arg_BackPixmap;
 unsigned int arg_BackPixel;
 LX_XID arg_BorderPixmap;
 unsigned int arg_BorderPixel;
 LX_XID arg_BitGravity;
 int proto_BitGravity;
 LX_XID arg_WinGravity;
 int proto_WinGravity;
 LX_XID arg_BackingStore;
 int proto_BackingStore;
 unsigned int arg_BackingPlanes;
 unsigned int arg_BackingPixel;
 int arg_OverrideRedirect;
 int arg_SaveUnder;
 unsigned int arg_EventMask;
 unsigned int arg_DontPropagate;
 LX_XID arg_Colormap;
 LX_XID arg_Cursor;
 unsigned int mask;
 int o;
 unsigned char req[92];

 if (xc->flags & XCF_FAIL)
  { lx__bad_call(xc,"lx_CreateWindow");
    return;
  }
 mask = 0;
 va_start(ap,window);
 while <"args"> (1)
  { key = va_arg(ap,int);
#define SIMPLE(name,type,bit)\
	case LX__CWV_##name:						\
		arg_##name = va_arg(ap,type);				\
		mask |= bit;						\
		break;
#define BOOLEAN(name,bit)\
	case LX__CWV_##name:						\
		arg_##name = lx__boolean_to_proto(va_arg(ap,int));	\
		mask |= bit;						\
		break;
#define MAPPED(name,mapper,bit)\
	case LX__CWV_##name:						\
		arg_##name = va_arg(ap,unsigned long int);		\
		proto_##name = mapper(arg_##name);			\
		if (proto_##name < 0)					\
		 { lx__bad_call(xc,"lx_CreateWindow");			\
		   return;						\
		 }							\
		mask |= bit;						\
		break;
    switch (key)
     { case LX__CWV_BackPixmap:
	  arg_BackPixmap = va_arg(ap,unsigned long int);
	  switch (arg_BackPixmap)
	   { case LX_PIXMAP_None:           arg_BackPixmap = 0; break;
	     case LX_PIXMAP_ParentRelative: arg_BackPixmap = 1; break;
	   }
	  mask |= 0x0001;
	  break;
       SIMPLE(BackPixel,unsigned int,0x0002)
       case LX__CWV_BorderPixmap:
	  arg_BorderPixmap = va_arg(ap,unsigned long int);
	  if (arg_BorderPixmap == LX_PIXMAP_CopyFromParent) arg_BorderPixmap = 0;
	  mask |= 0x0004;
	  break;
       SIMPLE(BorderPixel,unsigned int,0x0008);
       MAPPED(BitGravity,lx__bitgravity_to_proto,0x0010);
       MAPPED(WinGravity,lx__wingravity_to_proto,0x0020);
       MAPPED(BackingStore,lx__backingstore_to_proto,0x0040);
       SIMPLE(BackingPlanes,unsigned int,0x0080);
       SIMPLE(BackingPixel,unsigned int,0x0100);
       BOOLEAN(OverrideRedirect,0x0200);
       BOOLEAN(SaveUnder,0x0400);
       SIMPLE(EventMask,unsigned int,0x0800);
       SIMPLE(DontPropagate,unsigned int,0x1000);
       case LX__CWV_Colormap:
	  arg_Colormap = va_arg(ap,unsigned long int);
	  if (arg_Colormap == LX_COLORMAP_CopyFromParent) arg_Colormap = 0;
	  mask |= 0x2000;
	  break;
       case LX__CWV_Cursor:
	  arg_Cursor = va_arg(ap,unsigned long int);
	  if (arg_Cursor == LX_CURSOR_None) arg_Cursor = 0;
	  mask |= 0x4000;
	  break;
       case LX__CWV_END:
	  break <"args">;
       default:
	  lx_abort();
	  break;
     }
#undef SIMPLE
#undef BOOLEAN
#undef MAPPED
  }
 va_end(ap);
 req[0] = XP_REQ_ChangeWindowAttributes;
 req[1] = 0;
 // req[2] and [3] filled in later
 w_card32(&req[4],window);
 w_card32(&req[8],mask);
 o = 12;
#define FOO(bit,var) do { if (mask & (bit)) { mask &= ~(bit); w_card32(&req[o],(var)); o += 4; } } while (0)
 FOO(0x0001,arg_BackPixmap);
 FOO(0x0002,arg_BackPixel);
 FOO(0x0004,arg_BorderPixmap);
 FOO(0x0008,arg_BorderPixel);
 FOO(0x0010,proto_BitGravity);
 FOO(0x0020,proto_WinGravity);
 FOO(0x0040,proto_BackingStore);
 FOO(0x0080,arg_BackingPlanes);
 FOO(0x0100,arg_BackingPixel);
 FOO(0x0200,arg_OverrideRedirect);
 FOO(0x0400,arg_SaveUnder);
 FOO(0x0800,arg_EventMask);
 FOO(0x1000,arg_DontPropagate);
 FOO(0x2000,arg_Colormap);
 FOO(0x4000,arg_Cursor);
#undef FOO
 w_card16(&req[2],o>>2);
 lx__send_req(xc,&req[0],o);
}