Displaying gapfill3 Pastie For Amibroker (AFL)

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SetBarsRequired(sbrAll,sbrAll);
xx=BarIndex();x=xx;Lx=LastValue(x); 
lvb=Min(Lx,Status("lastvisiblebarindex"));
rightStrength=Param("Right Strength (Major Pivot)",5,1,50,1);
leftStrength=Param("Left Strength (Major Pivot)",5,1,50,1);
rightStrength_mini=Param("Right Strength (Mini Pivot)",1,1,50,1);
leftStrength_mini=Param("Left Strength (Mini Pivot)",1,1,50,1);
showUpGap=ParamToggle("Display Up Gap","No|Yes",1);
showDnGap=ParamToggle("Display Dn Gap","No|Yes",1);
minimumGapFactor=Param("Minimum Gap Factor",0.5,0,5,0.01);
atrArrayPeriod=Param("ATR Array Period",10,0,50,1);
tf=Param("Time Frame (Minutes)",5,1,1440,1);tfrm=in1Minute*tf;
cp=ParamToggle("Clean Mini Pivots","No|Yes",0);
blinkOnOff=ParamToggle("Blinking Zones","Off|On",0);
chartArea=ParamToggle("Display Area","Visible Chart|Complete Chart",0);
if(chartArea==0)fvb=Status("firstvisiblebarindex");
if(chartArea==1)fvb=0;
GfxSetOverlayMode(1); 
GfxSetCoordsMode(1); 
GfxSetBkMode(1);
if(blinkOnOff)
    cc=Random();
else
    cc=1;
     
cntDnGap=valDnGapHi=valDnGapLo=idxDnGapStart=idxDnGapEnd=0;
cntUpGap=valUpGapHi=valUpGapLo=idxUpGapStart=idxUpGapEnd=0;
 
function pkID(rightStrength,leftStrength)
{
    pk=H>Ref(HHV(H,leftStrength),-1) AND H>=Ref(HHV(H,rightStrength),rightStrength);
    return pk;
}
function trID(rightStrength,leftStrength)
{
    tr=L<Ref(LLV(L,leftStrength),-1) AND L<=Ref(LLV(L,rightStrength),rightStrength);
    return tr;
}
 
TimeFrameSet(tfrm); 
    pk=pkID(rightStrength,leftStrength);
    tr=trID(rightStrength,leftStrength);
    pkh=IIf(pk,H,Null);
    trl=IIf(tr,L,Null);
    atrarray=Ref(ATR(atrArrayPeriod),-1);
TimeFrameRestore();
atrArray=TimeFrameExpand(atrArray,tfrm,expandfirst);
fact=Nz(Max(tfrm/60,Interval()/60)/(Interval()/60));
if(fact==0)fact=1;
Lkbk=Nz(tfrm/Interval());
if(Lkbk>1)
{
    pk=TimeFrameExpand(pk,tfrm,expandFirst);
    pkh=TimeFrameExpand(pkh,tfrm,expandFirst);
    pkhs=IIf(!IsEmpty(pkh),1,0);pkhs=pkhs-Ref(pkhs,-1);
    pk=pk AND H==pkh;
    cond1=Sum(pk,BarsSince(pkhs==1)+1)==1 AND pk;
    pk=pk AND cond1;
     
    tr=TimeFrameExpand(tr,tfrm,expandFirst);    
    trl=TimeFrameExpand(trl,tfrm,expandFirst);
    trls=IIf(!IsEmpty(trl),1,0);trls=trls-Ref(trls,-1);
    tr=tr AND L==trl;
    cond1=Sum(tr,BarsSince(trls==1)+1)==1 AND tr;
    tr=tr AND cond1;
}
 
pkm=pkID(rightStrength_mini,leftStrength_mini);
trm=trID(rightStrength_mini,leftStrength_mini);
 
function cleanMiniPivots()
{
    pkidx=tridx=0;
    for(i=0;i<BarCount;i++)
    {
        if(pkm[i])
        {
            if(pkidx!=0 AND H[i]>=H[pkidx])
            {
                pkm[pkidx]=0;
                pkidx=i;
            }
            else if(pkidx!=0 AND H[i]<H[pkidx])
            {
                pkm[i]=0;
            }           
            else
            {
                pkidx=i;
            }
            tridx=0;
        }
        else if(trm[i])
        {
            if(tridx!=0 AND L[i]<=L[tridx])
            {
                trm[tridx]=0;
                tridx=i;
            }
            else if(tridx!=0 AND L[i]>L[tridx])
            {
                trm[i]=0;
            }           
            else
            {
                tridx=i;
            }
            pkidx=0;
        }
    }
} 
 
if(cp) cleanMiniPivots();
pkHigh1=Ref(ValueWhen(pk,H,1),-(rightStrength*fact+fact));
trLow1=Ref(ValueWhen(Tr,L,1),-(rightStrength*fact+fact));
pkHigh0=ValueWhen(pkm,H,0);
trLow0=ValueWhen(trm,L,0);
 
minimumGap=minimumGapFactor*atrArray;
upGap=Cross(C,pkHigh1) AND pkHigh1<trLow0 AND (trLow0-pkHigh1)>minimumGap AND !pk;
dnGap=Cross(trLow1,C) AND trLow1>pkHigh0 AND (trLow1-pkHigh0)>minimumGap AND !tr;
 
gapBaseUp=ValueWhen(upGap,pkHigh1);
gapBaseDn=ValueWhen(dnGap,trLow1);
gapExtrUp=ValueWhen(upGap,trLow0);
gapExtrDn=ValueWhen(dnGap,pkHigh0);
 
function drawRectangle(x1,y1,x2,y2,clr)
{ 
    GfxSelectPen(clr); 
    GfxSelectSolidBrush(clr); 
    GfxPolygon(x1,y1,x2,y1,x2,y2,x1,y2); 
}
function locateUpGapArea()
{
    for(i=fvb;i<lvb;i++) 
    {
        if(upGap[i])
        {
            valUpGapHi[cntUpGap]=gapExtrUp[i];
            valUpGapLo[cntUpGap]=gapBaseUp[i];
            idxUpGapStart[cntUpgap]=i;
            for(j=i+1;j<BarCount;j++)//find end of Up gap area
            {
                if(L[j]<valUpGapLo[cntUpGap] AND L[j-1]>=valUpGapLo[cntUpGap])
                {
                    idxUpGapEnd[cntUpgap]=j;
                    break;
                }
                else if(j==(BarCount-1))
                {
                    idxUpGapEnd[cntUpgap]=j;
                    break;              
                }
            }
            cntUpGap=cntUpGap+1;
        }
    }
}
function locateDnGapArea()
{
    for(i=fvb;i<lvb;i++) 
    {
        if(dnGap[i])
        {
            valDnGapHi[cntDnGap]=gapBaseDn[i];
            valDnGapLo[cntDnGap]=gapExtrDn[i];
            idxDnGapStart[cntDngap]=i;
            for(j=i+1;j<BarCount;j++)//find end of Down gap area
            {
                if(H[j]>valDnGapHi[cntDnGap] AND H[j-1]<=valDnGapHi[cntDnGap])
                {
                    idxDnGapEnd[cntDngap]=j;
                    break;
                }
                else if(j==(BarCount-1))
                {
                    idxDnGapEnd[cntDngap]=j;
                    break;              
                }       
            }
            cntDnGap=cntDnGap+1;
        }
    }
}
function drawUpGapZones()
{
    for(i=0;i<cntUpGap;i++) 
    {
        x1=idxUpGapStart[i];
        y1=valUpGapHi[i];
        x2=idxUpGapEnd[i];
        y2=valUpGapLo[i];
        drawRectangle(x1,y1,x2,y2,ColorRGB(0,cc[1]*100+155,0));     
    }
}
function drawDnGapZones()
{
    for(i=0;i<cntDnGap;i++) 
    {
        x1=idxDnGapStart[i];
        y1=valDnGapHi[i];
        x2=idxDnGapEnd[i];
        y2=valDnGapLo[i];
        drawRectangle(x1,y1,x2,y2,ColorRGB(cc[1]*100+155,153,0));
    }
}
 
SetChartBkColor(ColorRGB(0,0,0));SetChartOptions(0,chartShowDates);
SetBarFillColor(IIf(C>O,colorGreen,IIf(C<=O,colorRed,colorLightGrey)));
Plot(C,"Price",IIf(C>O,colorDarkGreen,IIf(C<=O,colorDarkRed,colorLightGrey)),64,null,null,0,0,1);
PlotShapes(shapeCircle*tr,IIf(Lx-ValueWhen(tr,x)>rightStrength*fact,ColorRGB(0,255,0),colorWhite),0,L,-10);
PlotShapes(shapeCircle*pk,IIf(Lx-ValueWhen(pk,x)>rightStrength*fact,ColorRGB(255,0,0),colorWhite),0,H,10);
PlotShapes(shapeSmallCircle*trm,IIf(Lx-ValueWhen(tr,x)>rightStrength_mini,ColorRGB(0,70,0),colorWhite),0,L,-10);
PlotShapes(shapeSmallCircle*pkm,IIf(Lx-ValueWhen(pk,x)>rightStrength_mini,ColorRGB(70,0,0),colorWhite),0,H,10);
 
Plot(pkHigh1,"",colorBlue,1,Null,Null,0,0,1);
Plot(trLow1,"",colorRed,1,Null,Null,0,0,1);
 
if(showDnGap)
{
    locateDnGapArea();
    drawDnGapZones();
}
if(showUpGap)
{
    locateUpGapArea();
    drawUpGapZones();
}
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gapfill3 for Amibroker (AFL)
