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DDGFLOAD	;SFISC/MKO-LOAD PAGE/BLOCK ;08:55 AM  15 Nov 1994
	;;21.0;VA FileMan;;Dec 28, 1994
	;Per VHA Directive 10-93-142, this routine should not be modified.
PG(S,P,V,R)	;
	;Load and paint page
	;Called when a new form or page is selected
	;If Page is not pop-up close all windows first
	;Input:
	; S = internal form number
	; P = internal page number
	; V = 1 if buffer should be updated but nothing painted
	;     (new windows are still given focus)
	; R = 1 to reload blocks/fields on page even if loaded before
	;Returns:
	; DDGFWID  = Window number for a given page
	; DDGFWIDB = Window number of block displayer for a given page
	; DDGFLIM  = Boundaries within which cursor can be moved
	;
	I $D(^DIST(.403,+$G(S),40,+$G(P),0))[0 S DDGFWID="P0",DDGFWIDB="B0",DDGFLIM="0^0^"_(IOSL-8)_U_(IOM-2),DDGFPG=0 Q
	;
	S DDGFWID="P"_DDGFPG,DDGFWIDB="B"_DDGFPG
	I $$EXIST^DDGLIBW(DDGFWID),$G(R) D DESTROY^DDGLIBW(DDGFWID,1)
	I $$EXIST^DDGLIBW(DDGFWID),'$G(R) D  Q
	. S DDGFLIM=$P(@DDGFREF@("F",P),U,1,4)
	. I $P(DDGFLIM,U,3,4)?."^" D
	.. S $P(DDGFLIM,U,3,4)=IOSL-8_U_(IOM-2)
	.. D CLOSEALL^DDGLIBW($G(V))
	. D FOCUS^DDGLIBW(DDGFWID,$G(V))
	;
	N P1,P2,P3,P4,B,B1,B2
	;
	;Get page coordinates
	I $D(@DDGFREF@("F",+P))#2 D
	. N N
	. S N=@DDGFREF@("F",+P)
	. S P1=$P(N,U),P2=$P(N,U,2),P3=$P(N,U,3),P4=$P(N,U,4)
	E  D
	. S P2=$P(^DIST(.403,+S,40,+P,0),U,3),P3=$P(^(0),U,7)
	. S P1=$P(P2,",")-1,P2=$P(P2,",",2)-1
	. S:P1<0 P1=0 S:P2<0 P2=0
	. S:P3]"" P4=$P(P3,",",2)-1,P3=$P(P3,",")-1
	. S @DDGFREF@("F",P)=P1_U_P2_U_$S(P3]"":P3_U_P4,1:U)_U_$P($G(^DIST(.403,+S,40,+P,1)),U)_U_$P(^(0),U)
	;
	I P3]"" D
	. S DDGFLIM=P1_U_P2_U_P3_U_P4
	. D CREATE^DDGLIBW(DDGFWID,P1_U_P2_U_(P3-P1+1)_U_(P4-P2+1),1,$G(V))
	. S @DDGFREF@("RC",DDGFWID,P1,P2,P4,"P","P","PTOP")=""
	. S @DDGFREF@("RC",DDGFWID,P3,P4,P4,"P","P","PBRC")=""
	;
	E  D
	. S DDGFLIM=P1_U_P2_U_(IOSL-8)_U_(IOM-2)
	. D CLOSEALL^DDGLIBW($G(V))
	. D CREATE^DDGLIBW(DDGFWID,P1_U_P2_U_(IOSL-7-P1)_U_(IOM-1-P2),"",$G(V))
	;
	;Load header block
	S B=$P(^DIST(.403,+S,40,+P,0),U,2) I B]"" D
	. S B1=P1,B2=P2
	. D BK(+P,B,P1,P2,B1,B2,1,$G(V))
	;
	;Load all other blocks
	S B=0 F  S B=$O(^DIST(.403,+S,40,+P,40,B)) Q:B'=+$P(B,"E")  D
	. Q:$D(^DIST(.403,+S,40,+P,40,B,0))[0
	. S B2=$P(^DIST(.403,+S,40,+P,40,B,0),U,3)
	. S B1=$P(B2,",")-1,B2=$P(B2,",",2)-1
	. S:B1<0 B1=0 S:B2<0 B2=0
	. S B1=B1+P1,B2=B2+P2
	. D BK(+P,B,P1,P2,B1,B2,"",$G(V))
	Q
	;
BK(P,B,P1,P2,B1,B2,H,V)	;Load block image
	; P  = internal page number
	; B  = internal block number
	; P1 = page $Y
	; P2 = page $X
	; B1 = block abs $Y
	; B2 = block abs $X
	; H  = 1 if header block, immobile (optional)
	; V  = 1 if buffer should be updated but nothing painted (optional)
	N B3,F,F1,C,C1,C2,C3,D1,D2,D3,L,N
	Q:$D(^DIST(.404,B,0))[0
	;
	S N=$P(^DIST(.404,B,0),U)
	S:$G(H) B1=P1,B2=P2
	S B3=B2+$L(N)-1
	S @DDGFREF@("F",P,B)=B1_U_B2_U_B3_U_N
	S @DDGFREF@("BKRC",DDGFWIDB,B1,B2,B3,B)=$S($G(H):"H",1:"")
	;
	S F1=0
	F  S F1=$O(^DIST(.404,B,40,"B",F1)) Q:F1=""  S F=$O(^(F1,"")) D:F
	. Q:$D(^DIST(.404,B,40,F,0))[0
	. S C=$P(^DIST(.404,B,40,F,0),U,2),C2=$P($G(^(2)),U,3)
	. I C]"",'$P($G(^DIST(.404,B,40,F,2)),U,4),$P(^(0),U,3)'=1 S C=C_":"
	. S C1=$P(C2,",")-1+B1,C2=$P(C2,",",2)-1+B2,C3=C2+$L(C)-1
	. I $P(^DIST(.404,B,40,F,0),U,3)'=1 D
	.. S L=$P($G(^DIST(.404,B,40,F,2)),U,2),D2=$P($G(^(2)),U)
	.. S D1=$P(D2,",")-1+B1,D2=$P(D2,",",2)-1+B2,D3=D2+L-1
	. I C]"" D
	.. S @DDGFREF@("F",P,B,F)=C1_U_C2_U_C3_U_C
	.. S @DDGFREF@("RC",DDGFWID,C1,C2,C3,B,F,"C")=""
	.. D WRITE^DDGLIBW(DDGFWID,C,C1-P1,C2-P2,"",$G(V))
	. I $P(^DIST(.404,B,40,F,0),U,3)'=1 D
	.. S $P(@DDGFREF@("F",P,B,F),U,5,8)=D1_U_D2_U_D3_U_L
	.. S @DDGFREF@("RC",DDGFWID,D1,D2,D3,B,F,"D")=""
	.. D WRITE^DDGLIBW(DDGFWID,$TR($J("",L)," ","_"),D1-P1,D2-P2,"",$G(V))
	Q