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RetailEase_u.pas
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unit RetailEase_u;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, ComCtrls, StdCtrls, pngimage, ExtCtrls, Buttons, Spin, JPEG, Math,
Printers, MPlayer;
type
TfrmRetailEase = class(TForm)
tsLogon: TTabSheet;
imgLogon: TImage;
lblUserName: TLabel;
lblPassword: TLabel;
imgProfile: TImage;
imgViewLogin: TImage;
imgHideLogin: TImage;
edtUserName: TEdit;
edtPassKey: TEdit;
memUserNames: TMemo;
memPasswords: TMemo;
memLogins: TMemo;
memTypeAccount: TMemo;
bmbLogin: TBitBtn;
bmbCreateAccountPrompt: TBitBtn;
tsCreateAccount: TTabSheet;
imgCreate: TImage;
lblCreatePassword: TLabel;
lblCreateUserName: TLabel;
imgCreateAccount: TImage;
imgViewCreate: TImage;
imgHideCreate: TImage;
edtCreatePassKey: TEdit;
rgpTypeAccounts: TRadioGroup;
tsRegister: TTabSheet;
imgRegister: TImage;
lblReceiptHeader: TLabel;
lblQuantityHeader: TLabel;
sedQuantity: TSpinEdit;
bmbFinalizeOrder: TBitBtn;
bmbAddReceipt: TBitBtn;
tsChange: TTabSheet;
imgChange: TImage;
lblChangeHeader: TLabel;
redChange: TRichEdit;
bmbChange: TBitBtn;
tsAccounts: TTabSheet;
imgAccounts: TImage;
lblAccountHeader: TLabel;
bmbDeleteAccount: TBitBtn;
bmbSaveAccount: TBitBtn;
tsStock: TTabSheet;
imgStock: TImage;
pnlNavigation: TPanel;
imgLock: TImage;
imgHelp: TImage;
lstStockCustomize: TListBox;
bmbStockDelete: TBitBtn;
bmbStockSave: TBitBtn;
tsAbout: TTabSheet;
redAbout: TRichEdit;
redReciept: TRichEdit;
memAccounts: TMemo;
bmbCreateAccount: TBitBtn;
bmbReturnLogIn: TBitBtn;
memRegisteredUsernames: TMemo;
lblStockHeader: TLabel;
bmbRegisterReset: TBitBtn;
bmbEditStock: TBitBtn;
tsAddStock: TTabSheet;
imgAddStock: TImage;
pnlAddStock: TPanel;
lblCustomizeStockHeader: TLabel;
edtCategory: TEdit;
edtProductName: TEdit;
edtPrice: TEdit;
sedCurrentStockNew: TSpinEdit;
sedMinimumStockNew: TSpinEdit;
lblProductNameHeader: TLabel;
lblCategoryHeader: TLabel;
lblPriceHeader: TLabel;
bmbRegisterNewStock: TBitBtn;
redNewProductPreview: TRichEdit;
bmbPreviewNewStock: TBitBtn;
pgcMain: TPageControl;
bmbAddProductReset: TBitBtn;
bmbAddAccounts: TBitBtn;
bmbReturnAccounts: TBitBtn;
bmbCancelEdit: TBitBtn;
lstStockViewBE: TListBox;
redFinalReciept: TRichEdit;
lblChangeHeader1: TLabel;
bmbPrint: TBitBtn;
bmbMasterReset: TBitBtn;
bmbAddproduct: TBitBtn;
memReceipt: TMemo;
pnlNavigationRegister1: TPanel;
edtSubTotal: TEdit;
lblSubTotal: TLabel;
bmbAddNewAccounts: TBitBtn;
redHelp: TRichEdit;
bmbCancelOrder: TBitBtn;
imgSubTotal: TImage;
bmbStockEditRevert: TBitBtn;
bmbSaveStockEdits: TBitBtn;
memPhrases: TMemo;
lstRegisteredUsers: TListBox;
pnlAccountError: TPanel;
tmrGreet: TTimer;
lblToolTip: TLabel;
edtCreateUsername: TEdit;
mplBoot: TMediaPlayer;
lstStockViewFE: TListBox;
procedure imgAccountsNextClick(Sender: TObject);
procedure bmbReturnClick(Sender: TObject);
procedure btnAboutClick(Sender: TObject);
procedure imgRegisterPreviousClick(Sender: TObject);
procedure imgChangeLockClick(Sender: TObject);
procedure imgAccountsLockClick(Sender: TObject);
procedure imgHideCreateClick(Sender: TObject);
procedure imgHideLoginClick(Sender: TObject);
procedure bmbAboutClick(Sender: TObject);
procedure bmbCreateAccountPromptClick(Sender: TObject);
procedure bmbStockSaveClick(Sender: TObject);
procedure bmbLoginClick(Sender: TObject);
procedure btnCreateAccountClick(Sender: TObject);
procedure imgViewLoginClick(Sender: TObject);
procedure imgViewCreateClick(Sender: TObject);
procedure bmbCreateAccountClick(Sender: TObject);
procedure bmbReturnLogInClick(Sender: TObject);
procedure bmbDeleteAccountClick(Sender: TObject);
procedure bmbChangeClick(Sender: TObject);
procedure bmbFinalizeOrderClick(Sender: TObject);
procedure btnLoadStockClick(Sender: TObject);
procedure bmbSaveAccountClick(Sender: TObject);
procedure bmbStockDeleteClick(Sender: TObject);
procedure bmbAddReceiptClick(Sender: TObject);
procedure bmbRegisterResetClick(Sender: TObject);
procedure bmbEditStockClick(Sender: TObject);
procedure bmbPreviewNewStockClick(Sender: TObject);
procedure imgAddPreviousClick(Sender: TObject);
procedure imgLockClick(Sender: TObject);
procedure bmbAddProductResetClick(Sender: TObject);
procedure bmbLoadAccountsClick(Sender: TObject);
procedure bmbAddAccountsClick(Sender: TObject);
procedure bmbReturnAccountsClick(Sender: TObject);
procedure bmbCancelEditClick(Sender: TObject);
procedure bmbPrintClick(Sender: TObject);
procedure bmbMasterResetClick(Sender: TObject);
procedure bmbRegisterNewStockClick(Sender: TObject);
procedure bmbAddproductClick(Sender: TObject);
procedure bmbPrintMouseEnter(Sender: TObject);
procedure lstStockCustomizeMouseEnter(Sender: TObject);
procedure lstStockCustomizeMouseLeave(Sender: TObject);
procedure bmbStockRefreshClick(Sender: TObject);
procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
procedure imgHelpMouseEnter(Sender: TObject);
procedure imgChangeLockMouseEnter(Sender: TObject);
procedure imgLockMouseEnter(Sender: TObject);
procedure bmbAddNewAccountsClick(Sender: TObject);
procedure bmbRegisterResetMouseEnter(Sender: TObject);
procedure edtPassKeyKeyPress(Sender: TObject; var Key: Char);
procedure edtCategoryMouseEnter(Sender: TObject);
procedure edtProductNameMouseEnter(Sender: TObject);
procedure edtPriceMouseEnter(Sender: TObject);
procedure tsAboutShow(Sender: TObject);
procedure tsLogonShow(Sender: TObject);
procedure tsCreateAccountShow(Sender: TObject);
procedure tsRegisterShow(Sender: TObject);
procedure tsChangeShow(Sender: TObject);
procedure tsStockShow(Sender: TObject);
procedure tsAddStockShow(Sender: TObject);
procedure tsAccountsShow(Sender: TObject);
procedure imgHelpClick(Sender: TObject);
procedure redRecieptDblClick(Sender: TObject);
procedure bmbStockEditRevertClick(Sender: TObject);
procedure bmbSaveStockEditsClick(Sender: TObject);
procedure FormActivate(Sender: TObject);
procedure lstStockViewBEMouseLeave(Sender: TObject);
procedure lstRegisteredUsersMouseEnter(Sender: TObject);
procedure lstRegisteredUsersMouseLeave(Sender: TObject);
procedure edtCreateUserNameMouseEnter(Sender: TObject);
procedure edtCreatePassKeyMouseEnter(Sender: TObject);
procedure edtUserNameMouseEnter(Sender: TObject);
procedure edtPassKeyMouseEnter(Sender: TObject);
procedure edtUserNameChange(Sender: TObject);
procedure edtPassKeyChange(Sender: TObject);
procedure edtCreateUserNameChange(Sender: TObject);
procedure edtCreatePassKeyChange(Sender: TObject);
procedure tmrGreetTimer(Sender: TObject);
procedure rgpTypeAccountsClick(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure lstStockCustomizeClick(Sender: TObject);
procedure imgHideLoginMouseEnter(Sender: TObject);
procedure lstStockViewFEDblClick(Sender: TObject);
procedure lstStockViewFEClick(Sender: TObject);
procedure lstStockViewFEMouseEnter(Sender: TObject);
procedure redHelpChange(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
procedure Help(HelpBox: TRichEdit);
procedure Refresh();
procedure OnShow();
end;
var
frmRetailEase: TfrmRetailEase;
// User & Customer credentials
sCustomer, sCurrent, sUser, sCurrentPassKey, sCurrentUser, sNewProduct,
sCustomerName, sOldSelect: string;
// Register booleans
sSelect, sCurrentStock, sMinimumStock, sCategory, sPrice,
sProductName: string;
// Stock editing
bCategoryEdit, bUsernameChar, bProductNameEdit, bPriceEdit, bStock,
bRegisteredUsernameMain, bRegisteredUsernameSecondary: Boolean;
// Prices
rTotal, rPrice: Real;
iSelect, iCount: Integer;
// Temporary username and password after creation Auto-sign in
sTempUsername, sTempPassword : string;
implementation
{$R *.dfm}
procedure TfrmRetailEase.bmbEditStockClick(Sender: TObject);
var
iPosCurrentDL, iPosMinimumDL, iPosCategoryDL, iPosPriceDL,
iPosPriceDot: Integer;
I, J, K, L, M: Integer;
begin
if lstStockCustomize.ItemIndex = -1 then // Checks if an item has been selected in the TListBox
begin
lstStockCustomize.Color := $00B3B3FF;
end
else
begin // If something has been selected, certain buttons now become available, and the curretly selected item gets processed.
sCategory := '';
sProductName := '';
sPrice := '';
sCurrentStock := '';
sMinimumStock := '';
sNewProduct := '';
pgcMain.ActivePage := tsAddStock;
tsAddStock.TabVisible := True;
tsAddStock.Caption := 'Modify Stock';
lblCustomizeStockHeader.Caption := 'Modify Stock';
tsStock.TabVisible := False;
tsAccounts.TabVisible := False;
tsCreateAccount.TabVisible := False;
redNewProductPreview.Lines.Add('New product preview:');
bmbAddProductReset.Visible := False;
bmbStockEditRevert.Visible := True;
bmbRegisterNewStock.Visible := False;
bmbSaveStockEdits.Visible := True;
tsAddStock.TabVisible := True;
sSelect := '';
sSelect := lstStockCustomize.Items[lstStockCustomize.ItemIndex];
iSelect := lstStockCustomize.Items.IndexOf(sSelect);
sOldSelect := sSelect;
iPosCurrentDL := Pos('|', sSelect);
iPosMinimumDL := Pos('/', sSelect);
iPosCategoryDL := Pos('_', sSelect);
iPosPriceDL := Pos('@', sSelect);
for I := iPosCurrentDL + 1 to iPosMinimumDL - 1 do
begin
sCurrentStock := sCurrentStock + sSelect[I];
end;
for J := iPosMinimumDL + 1 to Length(sSelect) do
begin
sMinimumStock := sMinimumStock + sSelect[J]
end;
for K := 1 to iPosCategoryDL - 1 do
begin
sCategory := sCategory + sSelect[K]
end;
for L := iPosCategoryDL + 1 to iPosPriceDL - 1 do
begin
sProductName := sProductName + sSelect[L];
end;
for M := iPosPriceDL + 1 to iPosCurrentDL - 1 do
begin
sPrice := sPrice + sSelect[M];
end;
edtCategory.Clear;
edtProductName.Clear;
edtPrice.Clear;
sedMinimumStockNew.Clear;
sedCurrentStockNew.Clear;
edtCategory.Text := sCategory;
iPosPriceDot := Pos(',', sPrice);
sPrice[iPosPriceDot] := '.';
edtPrice.Text := sPrice;
edtProductName.Text := sProductName;
sedCurrentStockNew.Value := StrToInt(sCurrentStock);
sedMinimumStockNew.Value := StrToInt(sMinimumStock);
end;
end;
procedure TfrmRetailEase.bmbStockRefreshClick(Sender: TObject);
begin
case MessageDlg('Refresh the stock catalogue view?.', mtConfirmation,
mbYesNo, 0) of
mrYes:
begin // if the user chooses to refresh the catalogue view (lstCustomize), the following code is run.
lstStockCustomize.Items.Clear;
lstStockCustomize.Items.LoadFromFile('Assets\Stock.txt');
lstStockCustomize.ItemIndex := -1;
if lstStockCustomize.Items.Count = 0 then
begin
case MessageDlg('There is no stock registered. register some stock?',
// Prompts the user to add stock if none is detected.
mtConfirmation, mbYesNo, 0) of
mrYes:
begin
tsAddStock.Visible := True;
pgcMain.ActivePage := tsAddStock;
tsAccounts.TabVisible := False;
tsStock.TabVisible := False;
end;
mrNo:
begin
ShowMessage(
'Please register some stock stock when you are ready.');
end;
end;
end;
end;
mrNo:
begin
ShowMessage('Catalogue not refreshed.');
end;
end;
end;
procedure TfrmRetailEase.bmbReturnAccountsClick(Sender: TObject);
begin
// Clears the fields so they are empty the next time the user returns:
edtCreateUserName.Clear;
edtCreateUserName.Color := clWindow;
edtCreatePassKey.Clear;
edtCreatePassKey.Color := clWindow;
edtPassKey.PasswordChar := '*';
edtCreatePassKey.PasswordChar := '*';
rgpTypeAccounts.ItemIndex := -1;
rgpTypeAccounts.ParentBackground := True;
pnlAccountError.Visible := False;
// Adjusts active and inactive tabs:
pgcMain.ActivePage := tsAccounts;
tsAccounts.TabVisible := True;
tsCreateAccount.TabVisible := False;
tsStock.TabVisible := True;
bmbReturnLogIn.Visible := True;
bmbReturnAccounts.Visible := False;
bmbReturnAccounts.Enabled := False;
bmbReturnAccounts.Glyph.Assign(nil);
bmbCreateAccount.Visible := True;
bmbAddNewAccounts.Visible := False;
bmbAddNewAccounts.Enabled := False;
bmbAddNewAccounts.Glyph.Assign(nil);
// Refresh the Acccounts view (lstUsers)
lstRegisteredUsers.Clear;
lstRegisteredUsers.Items.LoadFromFile('Assets\Logins.txt');
imgViewLogin.Visible := False;
imgHideLogin.Visible := True;
end;
procedure TfrmRetailEase.bmbPrintClick(Sender: TObject);
var
I: Integer;
begin
// Copies receipt view from (redFinalReceipt) to (memReceipt), in preparation to save to text file.
for I := 0 to redFinalReciept.Lines.Count do
begin
memReceipt.Lines.Add(redFinalReciept.Lines[I]);
end;
// Saves to auto-generated textfile; named after the customer ID.
memReceipt.Lines.SaveToFile('Receipts\' + sCustomerName + '.txt');
ShowMessage('File printed successfully.' + #13 + 'Please view: "Receipts\' +
sCustomerName + '.txt"');
redNewProductPreview.Lines.Clear;
// For good measure, the (lstStock) TListBox is reloaded.
lstStockViewBE.Items.SaveToFile('Assets\Stock.txt');
lstStockViewBE.Items.Clear;
lstStockViewBE.Items.LoadFromFile('Assets\Stock.txt');
pgcMain.ActivePage := tsRegister;
sedQuantity.Value := 1;
// Warning to register stock if none is detected.
if lstStockViewBE.Items.Count = 0 then
begin
ShowMessage(
'There is no stock in the catalogue. Please ask the manager to register some stock.');
end;
// Continue to reset and clear up interface
sCustomerName := '';
redChange.Lines.Clear;
redReciept.Lines.Clear;
redFinalReciept.Lines.Clear;
tsRegister.TabVisible := True;
tsChange.TabVisible := False;
bmbChange.Enabled := True;
bmbChange.Glyph.LoadFromFile('Assets/MoneyBag.bmp');
bmbPrint.Enabled := False;
bmbPrint.Glyph.Assign(nil);
rTotal := 0;
edtSubTotal.Clear;
// Loads default text into (redReceipt)
redReciept.Lines.Add('Welcome to TopTech');
redReciept.Lines.Add('-------------------------------------------');
redReciept.Lines.Add('Product' + #9 + 'Q' + #13 + 'Price ');
redReciept.Lines.Add('-------------------------------------------' + #13);
// Disables 'Finalize Order' button, unless one item has been selected (ItemIndex will be 6.)
if redReciept.Lines.Count < 6 then
begin
bmbFinalizeOrder.Enabled := False;
bmbFinalizeOrder.Glyph.Assign(nil);
bmbRegisterReset.Enabled := False;
bmbRegisterReset.Glyph.Assign(nil);
end;
end;
procedure TfrmRetailEase.bmbPrintMouseEnter(Sender: TObject);
begin
bmbPrint.ShowHint := True;
bmbPrint.Hint := 'Prints contents of receipt to textfile (Receipt.txt)';
end;
procedure TfrmRetailEase.bmbAboutClick(Sender: TObject);
begin
pgcMain.ActivePage := tsAbout;
end;
procedure TfrmRetailEase.bmbAddAccountsClick(Sender: TObject);
begin
// Adjusts current tab focus
pgcMain.ActivePage := tsCreateAccount;
tsCreateAccount.TabVisible := True;
tsAccounts.TabVisible := False;
tsStock.TabVisible := False;
tsAddStock.TabVisible := False;
bmbReturnLogIn.Visible := False;
bmbReturnAccounts.Visible := True;
bmbReturnAccounts.Enabled := True;
bmbReturnAccounts.Glyph.LoadFromFile('Assets/Return.bmp');
bmbCreateAccount.Visible := False;
bmbAddNewAccounts.Visible := True;
bmbAddNewAccounts.Enabled := True;
bmbAddNewAccounts.Glyph.LoadFromFile('Assets/AddAccount.bmp');
imgHideCreate.Visible := True;
imgViewCreate.Visible := False;
end;
procedure TfrmRetailEase.bmbAddNewAccountsClick(Sender: TObject);
var
sCreateUsername, sCreatePasskey, sNewUser, sUserType, sRegisteredUsername,
sRegisteredUsers, sLowerCreateUsername: String;
memCurrentNames, memCurrentAccounts: string;
iIndex, iPos, iIndexUsername, I: Integer;
bAccountError2, bPasskeyLength2, bUsernameError2, bPassKeyError2,
bUsernameChar2, bCheck2: Boolean;
begin
// Stores values from (edtCreateUserName) and (edtCreatePassword) in variables to be validated and handled.
sCreateUsername := edtCreateUserName.Text;
sCreatePasskey := edtCreatePassKey.Text;
sNewUser := '';
sUserType := '';
bCheck2 := False;
bUsernameChar2 := False;
bUsernameError2 := False;
bPassKeyError2 := False;
bAccountError2 := False;
bPasskeyLength2 := False;
bRegisteredUsernameSecondary := False;
iIndex := 1;
// Code for assigning type of user account. Chosen via selection in (rgpAccounts)
case rgpTypeAccounts.ItemIndex of
0:
begin
sUserType := 'm';
end;
1:
begin
sUserType := 'c';
end;
end;
// if either (edtCreateUserName) or (edtPassword) is empty
if (sCreateUsername = '') then
begin
edtCreateUserName.Color := $00B3B3FF;
bUsernameError2 := True;
end
else
edtCreateUserName.Color := clWindow;
if (sCreatePasskey = '') then
begin
edtCreatePassKey.Color := $00B3B3FF;
bPassKeyError2 := True;
end
else
edtPassKey.Color := clWindow;
// If (rgpAccounts) does not have a selected option:
if (rgpTypeAccounts.ItemIndex = -1) then
begin
rgpTypeAccounts.ParentBackground := False;
rgpTypeAccounts.Color := $00B3B3FF;
pnlAccountError.Visible := True;
bAccountError2 := True;
end
else
begin
rgpTypeAccounts.ParentBackground := True;
pnlAccountError.Visible := False;
end;
// if either (edtCreateUserName) or (edtPassword) is not empty, now each character is scanned:
if (sCreateUsername <> '') or (sCurrentPassKey <> '') then
while (bUsernameChar2 = False) AND (iIndex <= Length(sCreateUsername)) do
begin
if (sCreateUsername[iIndex] = '.') or (sCreateUsername[iIndex] = '_') or
(sCreateUsername[iIndex] = ' ') then
begin
bUsernameChar2 := True;
end
else
edtCreateUserName.Color := clWindow;
Inc(iIndex);
if Length(sCreatePasskey) < 4 then
begin
ShowMessage('Passkey cannot be shorter than 4 digits');
bPasskeyLength2 := False;
end;
end;
// Loads registered users into a TMemo (memAccounts)
memAccounts.Lines.LoadFromFile('Assets\Logins.txt');
for memCurrentAccounts in memAccounts.Lines do
begin
sRegisteredUsers := memCurrentAccounts;
iPos := 0;
sRegisteredUsername := '';
iIndexUsername := 1;
bCheck2 := False;
// Scanning for '.' in each entry of (memAccounts):
while (bCheck2 = False) and (iIndexUsername <= Length(sRegisteredUsers)) do
begin
if (sRegisteredUsers[iIndexUsername] = '.') then
begin
bCheck2 := True;
iPos := iIndexUsername;
end;
Inc(iIndexUsername);
end;
// Build up string until dot '.' delimiter
for I := 1 to iPos - 1 do
begin
sRegisteredUsername := sRegisteredUsername + sRegisteredUsers[I];
end;
memRegisteredUsernames.Lines.Add(sRegisteredUsername);
end;
// Checks if the inputted name exists in memNames
// LowerCase() allows names to be compared, and case is not a factor; encouraging uniqueness.
sLowerCreateUsername := LowerCase(sCreateUsername);
if bCheck2 = True then
begin
for memCurrentNames in memRegisteredUsernames.Lines do
if sLowerCreateUsername = LowerCase(memCurrentNames) then
begin
bRegisteredUsernameSecondary := True;
edtCreateUserName.Color := clWebOrange;
end
end;
// If the new username does match with an entry in the TMemo, this ShowMessage() appears...
if bRegisteredUsernameSecondary = False then
edtCreateUserName.Color := clWindow;
if (bUsernameChar2 = True) or (bUsernameError2 = True) or
(bRegisteredUsernameSecondary = True) then
edtCreateUserName.Color := $00B3B3FF
else
edtCreateUserName.Color := clWindow;
if (bPassKeyError2 = True) or (bPasskeyLength2 = True) then
edtCreatePassKey.Color := $00B3B3FF;
// If neither of these conditions are met (ie both Boolean flags are False):
if (bUsernameChar2 = False) and (bUsernameError2 = False) and
(bPassKeyError2 = False) and (bAccountError2 = False) and
(bRegisteredUsernameSecondary = False) then
begin
ShowMessage('Account created successfully.');
// Concatenats different parts of new username into one and stores in sNewUser
sNewUser := sCreateUsername + '.' + sCreatePasskey + '_' + sUserType;
// Loads existing accounts:
memAccounts.Lines.LoadFromFile('Assets\Logins.txt');
// Appends new entry to memAccounts
memAccounts.Lines.Add(sNewUser);
// Saves to textfile (Logins.txt)
memAccounts.Lines.SaveToFile('Assets\Logins.txt');
bmbReturnLogIn.Enabled := True;
bmbReturnLogIn.Glyph.LoadFromFile('Assets/Return.bmp');
rgpTypeAccounts.Buttons[1].Enabled := True;
// Reets interface:
edtCreateUserName.Clear;
edtCreatePassKey.Clear;
rgpTypeAccounts.ItemIndex := -1;
end;
end;
procedure TfrmRetailEase.bmbAddproductClick(Sender: TObject);
begin
// Prepares interface and tab focus for adding a product to stock catalogue (lstStock, Stock.txt)
pgcMain.ActivePage := tsAddStock;
tsAddStock.TabVisible := True;
tsStock.TabVisible := False;
tsAccounts.TabVisible := False;
tsCreateAccount.TabVisible := False;
redNewProductPreview.Lines.Add('New product preview:');
tsAddStock.Caption := 'Add Stock';
lblCustomizeStockHeader.Caption := 'Add Stock';
bmbAddProductReset.Visible := True;
bmbStockEditRevert.Visible := False;
bmbRegisterNewStock.Visible := True;
bmbSaveStockEdits.Visible := False;
end;
procedure TfrmRetailEase.bmbChangeClick(Sender: TObject);
var
rChange, rGiven: Real;
iTHundred, iHundred, iFifty, iTwenty, iTen, iFive, iTwo, iOne, iRand: Integer;
rCent: Real;
iError, I, iPosComma: Integer;
sGiven: String;
bMoney : Boolean;
begin
// Stores input from (edtMoney) to be handled by the code
rGiven := 0;
bMoney := Dialogs.InputQuery('Cash tendered',
'Enter money given by customer', sGiven);
// If input is detected and 'OK' was clicked
if (sGiven <> '') and (bMoney = True) then
begin
// Check if comma present and replace with dot for auto math
iPosComma := Pos(',', sGiven);
sGiven[iPosComma] := '.';
{ See if this value can be a real; iError is a 0 if possible. Stores value of
where it fails if else }
Val(sGiven, rGiven, iError);
if (iError = 0) then
// If sGiven can successfully become a real, (rGiven)
begin
rGiven := Trunc(rGiven * 100) / 100;
FloatToStrF(rGiven, ffFixed, 8, 2);
if rGiven < rTotal then
begin
ShowMessage(
'Insufficient cash tendered. Please ensure the customer gives at least '
+ FloatToStrF(rTotal, ffCurrency, 8, 2) + '.');
bmbChangeClick(bmbChange);
end
end
else if (iError <> 0) and (bMoney = True) then
begin
// If cannot become a real
ShowMessage('Invalid input. Please enter decimal value.');
sGiven := '';
bmbChangeClick(bmbChange);
end
end
// If cancel clicked
else if (sGiven = '') and (bMoney = True) then
begin
ShowMessage('Invalid input. Please enter a decimal value.');
sGiven := '';
bmbChangeClick(bmbChange);
end
else if rGiven >= 1000000 then
begin
ShowMessage('Cash tendered cannot exceed R1 000 000.');
bmbChangeClick(bmbChange);
end;
begin
if (bMoney = True) and (sGiven <> '') then
begin
if iError = 0 then
begin
if not(rGiven < rTotal) then
begin
case MessageDlg('Please ensure the cash tendered is correct: ' +
FloatToStrF(rGiven, ffCurrency, 8, 2), mtConfirmation, mbYesNo,
0) of
mrYes:
begin
redChange.Lines.Add('Change calculated for: ' + sCustomer);
rChange := rGiven - rTotal;
begin
bmbPrint.Enabled := True;
bmbPrint.Glyph.LoadFromFile('Assets/Print.bmp');
redChange.Lines.Add('Money received: ' + #9 + FloatToStrF
(rGiven, ffCurrency, 8, 2));
redChange.Lines.Add
('Actual total: ' + #9 + FloatToStrF(rTotal,
ffCurrency, 8, 2));
redChange.Lines.Add('Change returned: ' + #9 + FloatToStrF
(rChange, ffCurrency, 8, 2));
iRand := Trunc(rChange);
rCent := Frac(rChange);
rCent := rCent * 100;
begin
// Mathematics used to break up the Change into the amount of each denomination required.
// Program is able to not display a numeration if it is = 0, saving space.
// How many R200 needed:
iTHundred := iRand div 200;
iRand := iRand - iTHundred * (200);
if iTHundred > 0 then
begin
redChange.Lines.Add
('R200:' + #9 + '×' + IntToStr(iTHundred));
end;
// How many R100 needed:
iHundred := iRand div 100;
iRand := iRand - iHundred * (100);
if iHundred > 0 then
begin
redChange.Lines.Add
('R100:' + #9 + '×' + IntToStr(iHundred));
end;
// How many R50 needed:
iFifty := iRand div 50;
iRand := iRand - iFifty * (50);
if iFifty > 0 then
begin
redChange.Lines.Add('R50:' + #9 + '×' + IntToStr(iFifty));
end;
// How many R20 needed:
iTwenty := iRand div 20;
iRand := iRand - iTwenty * (20);
if iTwenty > 0 then
begin
redChange.Lines.Add
('R20:' + #9 + '×' + IntToStr(iTwenty));
end;
// How many R10 needed:
iTen := iRand div 10;
iRand := iRand - iTen * (10);
if iTen > 0 then
begin
redChange.Lines.Add('R10:' + #9 + '×' + IntToStr(iTen));
end;
// How many R5 needed:
iFive := iRand div 5;
iRand := iRand - iFive * (5);
if iFive > 0 then
begin
redChange.Lines.Add('R5:' + #9 + '×' + IntToStr(iFive));
end;
// How many R2 needed:
iTwo := iRand div 2;
iRand := iRand - iTwo * (2);
if iTwo > 0 then
begin
redChange.Lines.Add('R2:' + #9 + '×' + IntToStr(iTwo));
end;
// How many R1 needed:
iOne := iRand div 1;
if iOne > 0 then
begin
redChange.Lines.Add('R1:' + #9 + '×' + IntToStr(iOne));
end;
// The amount of cents that needs to be returned:
if rCent > 0 then
begin
redChange.Lines.Add
(#13 + 'Cents: ' + #9 + FloatToStrF(rCent, ffGeneral,
8, 2) + 'c');
end;
// Copies lines from (redChange) to (redFinalReceipt)
for I := 0 to 3 do
begin
redFinalReciept.Lines.Add(redChange.Lines[I]);
end;
// Footer for receipt (redFinalReceipt)
redFinalReciept.Lines.Add(#13 +
'Thank you for shopping at TopTech.' + #13 +
'Have a wonderful day!' + #13);
redFinalReciept.Lines.Add
('Contact Details:' + #13 + 'Phone: 074 562 8961' +
#13 + 'Email: [email protected]');
bmbChange.Enabled := False;
bmbChange.Glyph.Assign(nil);
end;
end;
end;
end;
end;
end
else
// if coversion from string to real is not successful, the value is <> 0
begin
ShowMessage('Invalid input. Please enter a valid decimal value.');
end;
end
end;
end;
procedure TfrmRetailEase.bmbCreateAccountClick(Sender: TObject);
var
sCreateUsername, sCreatePasskey, sNewUser, sUserType, sRegisteredUsername,
sRegisteredUsers, sLowerCreateUsername: String;
// use 'mem' prefix as they are not normal string variables; connected to TMemos
memCurrentNames, memCurrentAccounts: string;
iIndex, iPos, iIndexUsername, I: Integer;
bAccountError1, bUsernameError1, bPassKeyError1, bPassKeyLength1,
bCheck1: Boolean;
begin
// Stores values from (edtCreateUserName) and (edtCreatePassword) in variables to be validated and handled.
sCreateUsername := edtCreateUserName.Text;
sCreatePasskey := edtCreatePassKey.Text;
sNewUser := '';
sUserType := '';
bCheck1 := False;
bAccountError1 := False;
bPassKeyError1 := False;
bUsernameError1 := False;
bPassKeyLength1 := False;
bRegisteredUsernameMain := False;
bUsernameChar := False;
memLogins.Lines.LoadFromFile('Assets\Logins.txt');
if memLogins.Lines.Count <> 0 then
lblToolTip.Caption := '';
// Variables for checking if username in use.
bRegisteredUsernameMain := False;
iIndex := 1;
// Code for assigning type of user account. Chosen via selection in (rgpAccounts)
case rgpTypeAccounts.ItemIndex of
0:
begin
sUserType := 'm';
end;
1:
begin
sUserType := 'c';
end;
end;
// This code validates input data:
// If (rgpAccounts) does not have a selected option:
if (rgpTypeAccounts.ItemIndex = -1) then
begin
rgpTypeAccounts.ParentBackground := False;
rgpTypeAccounts.Color := $00B3B3FF;
pnlAccountError.Visible := True;
bAccountError1 := True;
end
else
begin
rgpTypeAccounts.ParentBackground := True;
pnlAccountError.Visible := False;
end;
// if either (edtCreateUserName) or (edtPassword) is empty
if (sCreateUsername = '') then
begin
edtCreateUserName.Color := $00B3B3FF;
bUsernameError1 := True;
end
else
edtCreateUserName.Color := clWindow;
if (sCreatePasskey = '') then
begin
edtCreatePassKey.Color := $00B3B3FF;
bPassKeyError1 := True;
end
else
edtCreatePassKey.Color := clWhite;
// if either (edtCreateUserName) or (edtPassword) is empty, now each character is scanned:
if (sCreateUsername <> '') then
while (bUsernameChar = False) AND (iIndex <= Length(sCreateUsername)) do
begin
if (sCreateUsername[iIndex] = '.') or (sCreateUsername[iIndex] = '_') or
(sCreateUsername[iIndex] = ' ') then
begin
bUsernameChar := True;
edtCreateUserName.Color := clWebRed;
end
else
edtCreateUserName.Color := clWindow;
Inc(iIndex);
end;
if Length(sCreatePasskey) < 4 then
begin
bPassKeyLength1 := True;
edtCreatePassKey.Color := clWebOrange;
end
else
edtCreatePassKey.Color := clWindow;
// Loads registered users into a TMemo (memAccounts)
memAccounts.Lines.LoadFromFile('Assets\Logins.txt');
for memCurrentAccounts in memAccounts.Lines do
begin
sRegisteredUsers := memCurrentAccounts;
iPos := 0;
sRegisteredUsername := '';
iIndexUsername := 1;
bCheck1 := False;
// Scanning for '.' in each entry of (memAccounts):
while (bCheck1 = False) and (iIndexUsername <= Length(sRegisteredUsers)) do
begin
if (sRegisteredUsers[iIndexUsername] = '.') then
begin
bCheck1 := True;
iPos := iIndexUsername;
end;
Inc(iIndexUsername);
end;
// Build up string until dot '.' delimiter
for I := 1 to iPos - 1 do
begin
sRegisteredUsername := sRegisteredUsername + sRegisteredUsers[I];
end;
memRegisteredUsernames.Lines.Add(sRegisteredUsername);
end;
// Checks if the inputted name exists in memNames
// LowerCase() allows names to be compared, and case is not a factor; encouraging uniqueness.
sLowerCreateUsername := LowerCase(sCreateUsername);
if bCheck1 = True then
begin
for memCurrentNames in memRegisteredUsernames.Lines do
if sLowerCreateUsername = LowerCase(memCurrentNames) then
begin
bRegisteredUsernameMain := True;
end
end;
// If the new username does match with an entry in the TMemo, this ShowMessage() appears...
if bRegisteredUsernameMain = True then
edtCreateUserName.Color := clWebOrange
else
edtCreateUserName.Color := clWindow;
// If neither of these conditions are met (ie both Boolean flags are False):
if (bUsernameChar = True) or (bUsernameError1 = True) then
edtCreateUserName.Color := $00B3B3FF;
if (bPassKeyError1 = True) then
edtCreatePassKey.Color := $00B3B3FF;
if (bUsernameError1 = False) and (bPassKeyError1 = False) and
(bAccountError1 = False) and
(bRegisteredUsernameMain = False) and (bUsernameChar = False) and
(bPassKeyLength1 = False) then
begin
// Concatenats different parts of new username into one and stores in sNewUser
sNewUser := sCreateUsername + '.' + sCreatePasskey + '_' + sUserType;
// Loads existing accounts:
memAccounts.Lines.LoadFromFile('Assets\Logins.txt');
// Appends new entry to memAccounts
memAccounts.Lines.Add(sNewUser);
// Saves to textfile (Logins.txt)
memAccounts.Lines.SaveToFile('Assets\Logins.txt');
bmbReturnLogIn.Enabled := True;
bmbReturnLogIn.Glyph.LoadFromFile('Assets/Return.bmp');
rgpTypeAccounts.Buttons[1].Enabled := True;
// Reets interface:
edtCreateUserName.Clear;
edtCreatePassKey.Clear;
rgpTypeAccounts.ItemIndex := -1;
pgcMain.ActivePage := tsLogon;
tsLogon.TabVisible := True;
tsCreateAccount.TabVisible := False;
imgViewLogin.Visible := False;
imgHideLogin.Visible := True;
sTempUsername := sCreateUsername;
sTempPassword := sCreatePasskey;
edtUserName.Text := sTempUsername;
edtPassKey.Text := sTempPassword;
end;
end;
procedure TfrmRetailEase.bmbCreateAccountPromptClick(Sender: TObject);
begin
// Adjusts what needs to happen when 'Add Account' is pressed on admin side
tsCreateAccount.TabVisible := True;
pgcMain.ActivePage := tsCreateAccount;
tsLogon.TabVisible := False;
rgpTypeAccounts.Buttons[1].Enabled := True;
tmrGreet.Enabled := False;
lblToolTip.Caption := '';
imgHideCreate.Visible := True;
imgViewCreate.Visible := False;
// Reset and clear interface
edtUserName.Clear;
edtUserName.ShowHint := False;
edtUserName.Color := clWindow;
edtPassKey.Clear;