with a "Drawmenu".
Code:
export LS_PMT:=0;
export LS_yield:={0,0};
// Initialize procedures used in project
EVENTHANDLER();
PUTMENU();
GETMENU();
Leasing_advpmt();
Leasing_yield();
Leasing_residual();
Leasing_res_yield();
// Initialize variables used globally in project
mSEL;
eTYP;
kP;
m;
m1;
EXPORT Leasing()
BEGIN
// Initialize local variables used within this procedure
LOCAL mx,my,mTXT,EXITPGM;
// Set the menu text (this is softcoded and determines if a menu item is valid)
mTXT := {"AdvPmt","Yield","Resid","ResYld","","Quit"};
// MAIN CODE - Loop until ESC is pressed, then exit the program
EXITPGM := 0;
WHILE EXITPGM == 0 DO
// Clear the screen and draw the menu
RECT_P();
TEXTOUT_P("Leasing with advanced payments", 30, 10, 5, RGB(255,0,0));
TEXTOUT_P("Advanced payments: calc payment", 25, 50);
TEXTOUT_P("Advanced payments: calc yield", 25, 70);
TEXTOUT_P("Leasing with residual: payment", 25, 90);
TEXTOUT_P("Leasing with residual: yield", 25, 110);
TEXTOUT_P("by Salvo Micciché 2015", 25, 140);
TEXTOUT_P("Credits: Dale (DrD), Eddie W. Shore", 25, 170);
TEXTOUT_P("Cyrille, akmon, kharpster", 25, 190);
PUTMENU(mTXT);
// Flush the mouse buffer
WHILE MOUSE(1) ≥ 0 DO END;
// Loop until we have a keyboard or mouse event
REPEAT
EVENTHANDLER();
UNTIL eTYP <> "";
CASE
// If the event type was a keyboard action then process it
IF eTYP == "K" THEN
// If the ESC key was pressed set the program to end
IF kP == 4 THEN
EXITPGM := 1;
ELSE
// ESC was not pressed do what you want with the keypress, we are just going to do a TEXTOUT
END;
END;
// If the event type was mouse action then process it
IF eTYP == "M" THEN
// Convert mouse coordinates to decimal
mx := B→R(m1(1));
my := B→R(m1(2));
// Determine if mouse coordinates are inside of a valid menu item otherwise return a zero
GETMENU(mx,my,mTXT);
// If a valid menu item was selected, do something, we are just going to do a TEXTOUT
IF mSEL > 0 THEN
CASE
// If menu item 1 was selected display a choose box for the user to select from
IF mSEL == 1 THEN
Leasing_advpmt();
END;
IF mSEL == 2 THEN
Leasing_yield();
END;
IF mSEL == 3 THEN
Leasing_residual();
END;
IF mSEL == 4 THEN
Leasing_res_yield();
END;
IF mSEL == 6 THEN
EXITPGM := 1;
END;
DEFAULT
// This is the default action for the menu selection and will only run if no case statement is satisfied
END;
ELSE
// Mouse not in menu, do something if needed
END;
END;
END;
END;
END;
// -------------------------------------------------------------------
// Detect keyboard or mouse input (keyboard has priority)
// -------------------------------------------------------------------
EVENTHANDLER()
BEGIN
eTYP := "";
kP := GETKEY;
IF kP <> -1 THEN
eTYP := "K";
ELSE
m := MOUSE;
m1 := m(1);
IF SIZE(m1) > 0 THEN
eTYP := "M";
END;
END;
END;
// ----------------------------------------------
// Draw the menu using the list passed in
// ----------------------------------------------
PUTMENU(mTXT)
BEGIN
DRAWMENU(mTXT(1),mTXT(2),mTXT(3),mTXT(4),mTXT(5),mTXT(6));
END;
// ------------------------------------------------------------------------------------------
// Get the number of the menu item selected (1-6) by checking mouse position
// Menu items with empty/blank text will return a zero
// ------------------------------------------------------------------------------------------
GETMENU(mx,my,mTXT)
BEGIN
mSEL := 0;
IF my≥220 AND my≤239 THEN
CASE
IF mx≥0 AND mx≤51 AND mTXT(1)>"" THEN
mSEL := 1;
END;
IF mx≥53 AND mx≤104 AND mTXT(2)>"" THEN
mSEL := 2;
END;
IF mx≥106 AND mx≤157 AND mTXT(3)>"" THEN
mSEL := 3;
END;
IF mx≥159 AND mx≤210AND mTXT(4)>"" THEN
mSEL := 4;
END;
IF mx≥212 AND mx≤263 AND mTXT(5)>"" THEN
mSEL := 5;
END;
IF mx≥265 AND mx≤319 AND mTXT(6)>"" THEN
mSEL := 6;
END;
END;
END;
END;
// ------------------------------------------------------------------------------------------
// LEASING APPLICATION CODE
// ------------------------------------------------------------------------------------------
Leasing_advpmt()
// solve for monthly payment
// by Salvo Micciché 2015 - Credits: kharpster
BEGIN
LOCAL r, n, fpmt, val;
INPUT ({r, n, fpmt, val},"Leasing: advance payments", {"yield%", "n lease", "n pmt advance", "value"},
{"Yield (rate)%", "Duration of lease", "Num of advance payments", "Value of Leasing"}, {0,0, 0, 0},{0,12, 3,0});
LOCAL npmt, pv;
npmt:= n - fpmt;
pv:= Finance.CalcPV(npmt, r, -1, 0, 12, 12, 1);
sto(val/(pv+fpmt), LS_PMT);
RECT_P(0,0,319,219);
TEXTOUT_P("Leasing with advanced payments", 0, 10, 5, RGB(255,0,0));
TEXTOUT_P("Value of lease: " + EVAL(val), 0, 40);
TEXTOUT_P("Duration of lease: " + EVAL(n), 0, 60);
TEXTOUT_P("Advanced payments n.: " + EVAL(fpmt), 0, 80);
TEXTOUT_P("Periodic payments n.: " + EVAL(npmt), 0, 100);
TEXTOUT_P("Yield (rate): " + EVAL(ROUND(r,3)) + "%", 0, 120);
TEXTOUT_P("Monthly payment: " + EVAL(ROUND(val/(pv+fpmt),3)), 0, 140);
WAIT;
RETURN val/(pv+fpmt);
END;
Leasing_yield()
// solve for yield
BEGIN
LOCAL n, fpmt, val, pmt, yield, npmt, pv;
INPUT ({n, fpmt, val, pmt},"Leasing: calc yield", {"n lease", "n pmt advance", "value", "payment"},
{"Duration of lease", "Num of advance payments", "Value of Leasing", "Monthly payment"}, {0,0, 0, 0},{12,3, 0, 0});
npmt:= n - fpmt;
pv:= fpmt*pmt-val;
yield:= Finance.CalcIPYR(npmt, pv, pmt, 0, 12, 12, 1);
sto({yield/12, yield},LS_yield);
RECT_P(0,0,319,219);
TEXTOUT_P("Leasing: solving for Yield", 0, 10, 5, RGB(255,0,0));
TEXTOUT_P("Value of lease (loan): " + EVAL(val), 0, 40);
TEXTOUT_P("Duration of lease: " + EVAL(n), 0, 60);
TEXTOUT_P("Advanced payments n.: " + EVAL(fpmt), 0, 80);
TEXTOUT_P("Periodic payments n.: " + EVAL(npmt), 0, 100);
TEXTOUT_P("Monthly Payment: " + EVAL(ROUND(pmt,3)), 0, 120);
TEXTOUT_P("Monthly yield: " + EVAL(ROUND(yield/12,3)) +"%", 0, 140);
TEXTOUT_P("Yearly yield: " + EVAL(ROUND(yield,3)) +"%", 0, 160);
WAIT;
RETURN yield;
END;
Leasing_residual()
// Leasing with residual value, solve for monthly payment
BEGIN
LOCAL n, r, val, resval, fpmt, att, pv;
LOCAL npmt, pv2;
INPUT ({n, fpmt, r, val, resval},"Leasing with residual", {"n lease", "n adv pmt", "yield%", "value", "res value"},
{"Duration of lease", "Num advanced payments", "Yield (rate)%", "Value of Leasing (loan)", "Residual value"},
{0,0, 0, 0, 0},{12, 3, 0, 0, 0});
pv:= Finance.CalcPV(n, r,0, resval, 12, 12, 1);
att:= pv + val;
npmt:= n - fpmt;
pv2:= Finance.CalcPV(npmt, r, -1, 0, 12, 12, 1);
pv2:= pv2 + fpmt;
sto(att/pv2, LS_PMT);
RECT_P(0,0,319,219);
TEXTOUT_P("Leasing with residual", 0, 10, 5, RGB(255,0,0));
TEXTOUT_P("Value of lease (loan): " + EVAL(val), 0, 40);
TEXTOUT_P("Residual value: " + EVAL(resval), 0, 60);
TEXTOUT_P("Duration of lease: " + EVAL(n), 0, 80);
TEXTOUT_P("Advanced payments n.: " + EVAL(fpmt), 0, 100);
TEXTOUT_P("Periodic payments n.: " + EVAL(npmt), 0, 120);
TEXTOUT_P("Yield (rate): " + EVAL(ROUND(r,3)) + "%", 0, 140);
TEXTOUT_P("Monthly payment: " + EVAL(ROUND(att/pv2,3)), 0, 160);
WAIT;
RETURN att/pv2;
END;
Leasing_res_yield()
// Leasing with residual value, solve for yield (rate)
BEGIN
LOCAL n, fpmt, val, pmt, resval, j, irr;
LOCAL flows:={}, yield, npmt, netamt;
INPUT ({n, fpmt, val, resval, pmt},"Leasing: calc yield", {"n lease", "n pmt advance", "value", "res val", "payment"},
{"Duration of lease", "Num of advance payments", "Value of Leasing", "REsidual value", "Monthly payment"},
{0,0, 0, 0, 0},{36,2, 0, 0, 0});
npmt:= n - fpmt;
netamt:= -val+pmt*fpmt; // net amount (-value + payment*advanced num pmt)
flows:= append(flows, netamt); // create list, append net amount
FOR j FROM 1 TO npmt DO
flows:= append (flows, pmt); // append payment, (num pmt - advanced pmt) times
END; // for
FOR j FROM 1 TO (fpmt-1) DO
flows:= append (flows, 0); // append 0, (mum advanced pmt minus 1)
END; // for
flows:= append(flows, resval); // append residual value
L1:= flows;
irr:= Solve.SOLVE(ΣLIST(MAKELIST((L1(I)/X^(I-1)),I,1,SIZE(L1))),X)-1;
// Solve.SOLVE() could not always work, but give only a secure value, solve() works better, bur gives more values
sto({irr*100,12*irr*100}, LS_yield);
RECT_P(0,0,319,219);
TEXTOUT_P("Leasing with advanced payments and residual value", 0,10, 3, RGB(255,0,0));
TEXTOUT_P("Solved for yield (rate)", 0,40, 3);
TEXTOUT_P("Value of lease (loan): " + EVAL(val), 0,60);
TEXTOUT_P("Residual value: " + EVAL(resval), 0,80);
TEXTOUT_P("Duration of lease: " + EVAL(n), 0,100);
TEXTOUT_P("Advanced payments n.: " + EVAL(fpmt) + "Periodic pmt n.: " + EVAL(npmt), 0,120);
TEXTOUT_P("Monthly Payment: " + EVAL(ROUND(pmt,3)), 0,140);
TEXTOUT_P("Net amount of cash advanced: " + EVAL(ROUND(netamt,3)), 0,160);
TEXTOUT_P("Monthly yield: " + EVAL(ROUND(irr*100,3)) + "%", 0,180);
TEXTOUT_P("Yearly yield: " + EVAL(ROUND(12*irr*100,3)) + "%", 0,200);
WAIT;
RETURN 12*irr; // yearly yield (IRR) in decimal
END;
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