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tcsheet.pas
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Pascal/Delphi Source File
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1989-05-02
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{ Copyright (c) 1989 by Borland International, Inc. }
unit TCSheet;
{ Turbo Pascal 5.5 object-oriented example spreadsheet routines.
This unit is used by TCALC.PAS.
See TCALC.DOC for an more information about this example.
}
{$N+,S-}
interface
uses Crt, Dos, Objects, TCUtil, TCInput, TCScreen, TCLStr, TCHash, TCCell,
TCCellSp, TCParser;
const
DefaultMaxCols = 65535;
DefaultMaxRows = 65535;
DefaultMaxDecimalPlaces = 8;
DefaultDefaultDecimalPlaces = 4;
DefaultDefaultColWidth = 10;
EmptyRowsAtTop = 1;
EmptyRowsAtBottom = 2;
MinColWidth = 3;
CurrentChar = #4;
ChangedChar = '*';
PrintNormalCols = 80;
PrintCompressedCols = 132;
PrintRows = 66;
PrintTopMargin = 1;
PrintBottomMargin = 1;
PrinterCompressChar = #15;
EditYes = True;
EditNo = False;
DisplayYes = True;
DisplayNo = False;
WasChanged = True;
NotChanged = False;
AutoCalcLetter = 'A';
FormulaDisplayLetter = 'F';
MemoryString = 'Memory: ';
FileHeader = 'TurboCalc Spreadsheet'^Z;
ErrorString = 'ERROR';
TempFileName = 'TEMP.TMP'; { Temporary file used for rehashing }
PrinterName = 'PRN';
PromptFileSave = 'File to save';
PromptFilePrint = 'File to print to (ENTER = Printer)';
PromptOverwriteFile = 'The file exists. Overwrite it';
PromptCompressPrint = 'Compress the printing';
PromptBorderPrint = 'Print the borders';
PromptColumnWidth = 'Column to change';
PromptNewWidth = 'New width';
PromptColumnDelete = 'Column to delete';
PromptColumnInsert = 'Insert new column before column';
PromptRowDelete = 'Row to delete';
PromptRowInsert = 'Insert new row before row';
PromptSaveYN = 'Save spreadsheet';
ErrNoOpen = 'Cannot open file';
ErrDiskFull = 'Disk full';
ErrPrinterError = 'Printer error';
ErrNotSpreadsheet = 'Not a TurboCalc spreadsheet file';
MsgRecalc = 'Recalculating cell values';
MsgSave = 'Saving spreadsheet';
MsgLoad = 'Loading spreadsheet';
MsgBlockDelete = 'Deleting block';
type
ColStartArray = array[0..ScreenCols] of Byte;
ColStartPtr = ^ColStartArray;
SpreadsheetPtr = ^Spreadsheet;
Spreadsheet = object
Number : Byte;
MaxRows : Word;
MaxCols : Word;
MaxDecimalPlaces : Byte;
MaxColWidth : Byte;
MaxScreenCols : Byte;
DefaultColWidth : Byte;
DefaultDecimalPlaces : Byte;
RowNumberSpace : Byte;
ColSpace : Byte;
Current : Boolean;
Changed : Boolean;
CurrPos : CellPos;
LastPos : CellPos;
ScreenBlock : Block;
CurrBlock : Block;
BlockOn : Boolean;
FileName : PathStr;
TotalRows : ScreenRowRange;
DisplayArea : ScreenArea;
ColArea : ScreenArea;
RowArea : ScreenArea;
InfoArea : ScreenArea;
DataArea : ScreenArea;
ContentsArea : ScreenArea;
BlankArea : ScreenArea;
NoBlankArea : Boolean;
ColStart : ColStartPtr;
DisplayFormulas : Boolean;
AutoCalc : Boolean;
CellHash : CellHashTable;
OverwriteHash : OverwriteHashTable;
WidthHash : WidthHashTable;
FormatHash : FormatHashTable;
Next : SpreadsheetPtr;
constructor Init(InitCells : Longint; InitMaxCols, InitMaxRows : Word;
InitMaxDecimalPlaces, InitDefaultDecimalPlaces : Byte;
InitDefaultColWidth : Byte);
destructor Done;
function GetColStart(Col : Word) : Byte;
procedure SetAreas(NewNumber : Word; X1 : ScreenColRange;
Y1 : ScreenRowRange; X2 : ScreenColRange;
Y2 : ScreenRowRange);
procedure DisplayCols;
procedure DisplayRows;
procedure DisplayInfo;
procedure DisplayAllCells;
procedure Display;
procedure DisplayCell(P : CellPos);
procedure DisplayCellData;
procedure DisplayCellBlock(C1 : Word; R1 : Word; C2 : Word;
R2 : Word);
procedure DisplayBlock(B : Block);
procedure DisplayBlockDiff(B1, B2 : Block);
procedure DisplayCol(Col : Word);
procedure DisplayRow(Row : Word);
procedure DisplayMemory;
procedure DisplayFileName;
procedure SetChanged(IsChanged : Boolean);
procedure MakeCurrent;
procedure MakeNotCurrent;
procedure Update(UDisplay : Boolean);
procedure ToggleFormulaDisplay;
procedure SetScreenColStart(NewCol : Word);
procedure SetScreenColStop(NewCol: Word);
procedure SetScreenRowStart(NewRow : Word);
procedure SetScreenRowStop(NewRow : Word);
procedure FindScreenColStart;
procedure FindScreenColStop;
procedure FindScreenRowStart;
procedure FindScreenRowStop;
procedure SetBlankArea;
function AddCell(CellType : CellTypes; P : CellPos; E : Boolean;
V : Extended; I : LStringPtr) : Boolean;
procedure DeleteCell(P : CellPos; var Deleted : Boolean);
procedure DeleteBlock(B : Block; var Deleted : Boolean);
function CellToFString(P : CellPos; var Color : Byte) : String;
procedure SetLastPos(DPos : CellPos);
function GetCurrCol : Word;
function GetCurrRow : Word;
function ColToX(Col : Word) : Byte;
function RowToY(Row : Word) : Byte;
function ColWidth(Col : Word) : Byte;
function SameCellPos(P1, P2 : CellPos) : Boolean;
procedure FixOverwrite;
function FromFile(Name : PathStr) : Boolean;
procedure ToFile(Name : PathStr);
procedure CheckForSave;
procedure ChangeWidth;
function CellHashStart(TotalCells : Longint) : BucketRange;
function WidthHashStart(TotalCells : Longint) : BucketRange;
function OverwriteHashStart(TotalCells : Longint) : BucketRange;
procedure Print;
procedure DeleteColumn;
procedure InsertColumn;
procedure DeleteRow;
procedure InsertRow;
end;
function GetColWidth(var WHash : WidthHashTable; C : Word) : Byte;
implementation
function GetColWidth(var WHash : WidthHashTable; C : Word) : Byte;
{ Returns the width of a column }
var
W : Word;
begin
W := WHash.Search(C);
if W = 0 then
GetColWidth := WHash.GetDefaultColWidth
else
GetColWidth := W;
end; { GetColWidth }
constructor Spreadsheet.Init(InitCells : Longint; InitMaxCols,
InitMaxRows : Word; InitMaxDecimalPlaces,
InitDefaultDecimalPlaces : Byte;
InitDefaultColWidth : Byte);
{ Sets up a new spreadsheet }
begin
if not CellHash.Init(CellHashStart(InitCells)) then
Fail;
if not WidthHash.Init(WidthHashStart(InitCells), InitDefaultColWidth) then
begin
CellHash.Done;
Fail;
end;
if not OverwriteHash.Init(OverwriteHashStart(InitCells)) then
begin
CellHash.Done;
WidthHash.Done;
Fail;
end;
if not FormatHash.Init then
begin
CellHash.Done;
WidthHash.Done;
OverwriteHash.Done;
Fail;
end;
MaxCols := InitMaxCols;
MaxRows := InitMaxRows;
RowNumberSpace := Ord(MaxRows >= 10000) + Ord(MaxRows >= 1000) +
Ord(MaxRows >= 100) + Ord(MaxRows >= 10) + 2;
MaxColWidth := ScreenCols - RowNumberSpace;
MaxScreenCols := MaxColWidth div MinColWidth;
GetMem(ColStart, MaxScreenCols);
if ColStart = nil then
begin
CellHash.Done;
WidthHash.Done;
OverwriteHash.Done;
FormatHash.Done;
Fail;
end;
CurrPos.Col := 1;
CurrPos.Row := 1;
LastPos := CurrPos;
BlockOn := False;
FileName := '';
DisplayFormulas := False;
AutoCalc := False;
Current := False;
Changed := False;
ScreenBlock.Start.Col := 1;
ScreenBlock.Start.Row := 1;
ColSpace := Succ(Ord(MaxCols >= 18279) + Ord(MaxCols >= 703) +
Ord(MaxCols >= 27));
MaxDecimalPlaces := InitMaxDecimalPlaces;
DefaultColWidth := InitDefaultColWidth;
DefaultDecimalPlaces := InitDefaultDecimalPlaces;
end; { Spreadsheet.Init }
destructor Spreadsheet.Done;
{ Removes a spreadsheet from memory }
begin
CellHash.Done;
WidthHash.Done;
OverwriteHash.Done;
FormatHash.Done;
FreeMem(ColStart, MaxScreenCols);
end; { Spreadsheet.Done }
function Spreadsheet.GetColStart(Col : Word) : Byte;
begin
GetColStart := ColStart^[Col];
end; { Spreadsheet.GetColStart }
procedure Spreadsheet.SetAreas(NewNumber : Word; X1 : ScreenColRange;
Y1 : ScreenRowRange; X2 : ScreenColRange;
Y2 : ScreenRowRange);
{ Sets up a spreadsheet's display areas }
begin
Number := NewNumber;
TotalRows := Y2 - Y1 - 2;
ColArea.Init(X1 + RowNumberSpace, Y1, X2, Y1, Colors.ColColor);
RowArea.Init(X1, Succ(Y1), Pred(X1 + RowNumberSpace), Y2 - 2,
Colors.RowColor);
InfoArea.Init(X1, Y1, Pred(X1 + RowNumberSpace), Y1, Colors.InfoColor);
DisplayArea.Init(X1 + RowNumberSpace, Succ(Y1), X2, Y2 - 2,
Colors.BlankColor);
DataArea.Init(X1, Pred(Y2), X2, Pred(Y2), Colors.BlankColor);
ContentsArea.Init(X1, Y2, X2, Y2, Colors.ContentsColor);
SetScreenColStart(ScreenBlock.Start.Col);
SetScreenRowStart(ScreenBlock.Start.Row);
SetBlankArea;
end; { Spreadsheet.SetAreas }
procedure Spreadsheet.DisplayCols;
{ Shows the column headings }
var
C : Word;
begin
ColArea.Clear;
with ScreenBlock do
begin
for C := Start.Col to Stop.Col do
WriteXY(CenterStr(ColToString(C), ColWidth(C)),
ColStart^[C - Start.Col], ColArea.UpperLeft.Row,
Colors.ColColor);
end; { with }
end; { Spreadsheet.DisplayCols }
procedure Spreadsheet.DisplayRows;
{ Shows the row headings }
var
R : Word;
begin
RowArea.Clear;
with ScreenBlock do
begin
for R := Start.Row to Stop.Row do
with RowArea do
WriteXY(LeftJustStr(RowToString(R), RowNumberSpace),
UpperLeft.Col, R - Start.Row + UpperLeft.Row,
Colors.RowColor);
end; { with }
end; { Spreadsheet.DisplayRows }
procedure Spreadsheet.DisplayInfo;
{ Shows the spreadsheet number, current dot, and state of AutoCalc and
formula display }
begin
InfoArea.Clear;
with InfoArea do
WriteXY(NumToString(Number), UpperLeft.Col, UpperLeft.Row,
Colors.InfoColor);
if Current then
Write(CurrentChar)
else
Write(' ');
if AutoCalc then
Write(AutoCalcLetter)
else
Write(' ');
if DisplayFormulas then
Write(FormulaDisplayLetter)
else
Write(' ');
end; { Spreadsheet.DisplayRows }
procedure Spreadsheet.DisplayAllCells;
{ Displays all of the cells on the screen }
begin
DisplayArea.Clear;
DisplayBlock(ScreenBlock);
end; { Spreadsheet.DisplayAllCells }
procedure Spreadsheet.DisplayCell(P : CellPos);
{ Displays a single cell }
var
S : String[ScreenCols];
Color : Byte;
begin
S := CellToFString(P, Color);
WriteXY(S, ColToX(P.Col), RowToY(P.Row), Color);
end; { Spreadsheet.DisplayCell }
procedure Spreadsheet.DisplayCellData;
{ Displays information about a cell - its type and its contents }
var
CP : CellPtr;
begin
CP := CellHash.Search(CurrPos);
with DataArea do
WriteXY(LeftJustStr(ColToString(CurrPos.Col) +
RowToString(CurrPos.Row) + ' ' + CP^.Name, 19),
UpperLeft.Col, UpperLeft.Row, Colors.CellDataColor);
with ContentsArea do
begin
Clear;
WriteXY(LeftJustStr(CP^.DisplayString(DisplayFormulas,
MaxDecimalPlaces), Scr.CurrCols), UpperLeft.Col,
UpperLeft.Row, Colors.ContentsColor);
end; { with }
end; { Spreadsheet.DisplayCellData }
procedure Spreadsheet.DisplayCellBlock(C1 : Word; R1 : Word;
C2 : Word; R2 : Word);
{ Displays all cells within a range of rows and columns }
var
P : CellPos;
begin
with ScreenBlock do
begin
for P.Row := Max(R1, Start.Row) to Min(R2, Stop.Row) do
begin
for P.Col := Max(C1, Start.Col) to Min(C2, Stop.Col) do
DisplayCell(P);
end;
end; { with }
end; { Spreadsheet.DisplayCellBlock }
procedure Spreadsheet.DisplayBlock(B : Block);
{ Displays all cells within a certain block }
begin
with B do
DisplayCellBlock(Start.Col, Start.Row, Stop.Col, Stop.Row);
end; { Spreadsheet.DisplayBlock }
procedure Spreadsheet.DisplayBlockDiff(B1, B2 : Block);
{ When a block is extended, this will update the screen to show the new
block }
var
B : Block;
DisplayMiddle : Boolean;
begin
if Compare(B1, B2, SizeOf(Block)) then
Exit;
with B do
begin
DisplayMiddle := False;
if B1.Stop.Col <> B2.Stop.Col then
begin
B.Start.Row := B1.Start.Row;
B.Start.Col := Min(Succ(B1.Stop.Col), Succ(B2.Stop.Col));
B.Stop.Row := Min(B1.Stop.Row, B2.Stop.Row);
B.Stop.Col := Max(B1.Stop.Col, B2.Stop.Col);
DisplayBlock(B);
DisplayMiddle := True;
end;
if B1.Stop.Row <> B2.Stop.Row then
begin
B.Start.Row := Min(Succ(B1.Stop.Row), Succ(B2.Stop.Row));
B.Start.Col := B1.Start.Col;
B.Stop.Row := Max(B1.Stop.Row, B2.Stop.Row);
B.Stop.Col := Min(B1.Stop.Col, B2.Stop.Col);
DisplayBlock(B);
DisplayMiddle := True;
end;
if DisplayMiddle then
begin
B.Start.Row := Min(Succ(B1.Stop.Row), Succ(B2.Stop.Row));
B.Start.Col := Min(Succ(B1.Stop.Col), Succ(B2.Stop.Col));
B.Stop.Row := Max(B1.Stop.Row, B2.Stop.Row);
B.Stop.Col := Max(B1.Stop.Col, B2.Stop.Col);
DisplayBlock(B);
end;
end; { with }
end; { Spreadsheet.DisplayBlockDiff }
procedure Spreadsheet.DisplayCol(Col : Word);
{ Display a column of cells }
begin
with ScreenBlock do
DisplayCellBlock(Col, Start.Row, Col, Stop.Row);
end; { Spreadsheet.DisplayCol }
procedure Spreadsheet.DisplayRow(Row : Word);
{ Display a row of cells }
begin
with ScreenBlock do
DisplayCellBlock(Start.Col, Row, Stop.Col, Row);
end; { Spreadsheet.DisplayRow }
procedure Spreadsheet.DisplayMemory;
{ Display the amount of free memory }
begin
WriteXY(RightJustStr(NumToString(MemAvail), 6), Scr.CurrCols - 5, 1,
Colors.MemoryColor);
end; { Spreadsheet.DisplayMemory }
procedure Spreadsheet.DisplayFileName;
{ Display the spreadsheet's file name, and whether or not it has been
updated }
var
S : PathStr;
begin
with DataArea do
begin
if FileName = '' then
S := 'No file'
else
S := FExpand(FileName);
WriteXY(LeftJustStr(S, LowerRight.Col - UpperLeft.Col - 20),
UpperLeft.Col + 21, UpperLeft.Row, Colors.FileNameColor);
end; { with }
end; { Spreadsheet.DisplayFileName }
procedure Spreadsheet.Display;
{ Display the entire spreadsheet }
begin
DisplayCols;
DisplayRows;
DisplayInfo;
DisplayAllCells;
DisplayMemory;
DisplayCellData;
DisplayFileName;
SetChanged(Changed);
end; { Spreadsheet.Display }
procedure Spreadsheet.SetChanged(IsChanged : Boolean);
{ Sets a spreadsheet as being changed or not changed }
var
C : Char;
begin
Changed := IsChanged;
if Changed then
C := ChangedChar
else
C := ' ';
with DataArea.UpperLeft do
WriteXY(C, Col + 19, Row, Colors.ChangedColor);
end; { Spreadsheet.SetChanged }
procedure Spreadsheet.MakeCurrent;
{ Make a spreadsheet the current one }
begin
Current := True;
DisplayInfo;
end; { Spreadsheet.MakeCurrent }
procedure Spreadsheet.MakeNotCurrent;
{ Make a spreadsheet not the current one }
begin
Current := False;
DisplayInfo;
end; { Spreadsheet.MakeNotCurrent }
procedure Spreadsheet.Update(UDisplay : Boolean);
{ Update any cells in the spreadsheet that need updating }
var
P, U : CellPos;
CP : CellPtr;
O : Word;
begin
Scr.PrintMessage(MsgRecalc);
with CellHash do
begin
for P.Row := 1 to LastPos.Row do
begin
for P.Col := 1 to LastPos.Col do
begin
CP := Search(P);
if CP^.ShouldUpdate then
begin
with FormulaCellPtr(CP)^ do
begin
Parser.Init(@CellHash, Formula, MaxCols, MaxRows);
Parser.Parse;
Value := Parser.ParseValue;
Error := Parser.ParseError;
O := CP^.Overwritten(CellHash, FormatHash, WidthHash,
LastPos, MaxCols, GetColWidth, DisplayFormulas);
if (OverwriteHash.Change(CP, O)) and UDisplay and
(CP^.Loc.Col + O >= ScreenBlock.Start.Col) then
begin
U := CP^.Loc;
for U.Col := CP^.Loc.Col to ScreenBlock.Stop.Col do
begin
if ScreenBlock.CellInBlock(U) then
DisplayCell(U);
end;
end;
end; { with }
end;
end;
end;
end; { with }
if UDisplay then
DisplayMemory;
Scr.ClearMessage;
end; { Spreadsheet.Update }
procedure Spreadsheet.ToggleFormulaDisplay;
{ Change from showing formulas to showing values and vice versa }
var
CP : CellPtr;
OChanged : Boolean;
begin
DisplayFormulas := not DisplayFormulas;
DisplayInfo;
OChanged := True;
with CellHash do
begin
CP := FirstItem;
while (CP <> nil) and OChanged do
begin
if CP^.ShouldUpdate then
OChanged := OverwriteHash.Change(CP, CP^.Overwritten(CellHash,
FormatHash, WidthHash, LastPos,
MaxCols, GetColWidth,
DisplayFormulas));
CP := NextItem;
end;
end; { with }
DisplayAllCells;
DisplayMemory;
end; { Spreadsheet.ToggleFormulaDisplay }
procedure Spreadsheet.SetScreenColStart(NewCol : Word);
{ Find the starting screen column }
begin
ScreenBlock.Start.Col := NewCol;
FindScreenColStop;
FindScreenColStart;
end; { Spreadsheet.SetScreenColStart }
procedure Spreadsheet.SetScreenColStop(NewCol : Word);
{ Find the ending screen column }
begin
ScreenBlock.Stop.Col := NewCol;
FindScreenColStart;
FindScreenColStop;
end; { Spreadsheet.SetScreenColStop }
procedure Spreadsheet.SetScreenRowStart(NewRow : Word);
{ Find the starting screen row }
begin
ScreenBlock.Start.Row := NewRow;
FindScreenRowStop;
end; { Spreadsheet.SetScreenRowStart }
procedure Spreadsheet.SetScreenRowStop(NewRow : Word);
{ Find the ending screen row }
begin
ScreenBlock.Stop.Row := NewRow;
FindScreenRowStart;
end; { Spreadsheet.SetScreenRowStop }
procedure Spreadsheet.FindScreenColStart;
{ Find the starting screen column when the ending column is known }
var
Index, Place : Integer;
Temp, Width : Byte;
begin
with ScreenBlock do
begin
Index := 0;
Place := Succ(DisplayArea.LowerRight.Col);
Width := ColWidth(Stop.Col);
repeat
ColStart^[Index] := Place - Width;
Dec(Place, Width);
Inc(Index);
if Stop.Col - Index = 0 then
Width := 0
else
Width := ColWidth(Stop.Col - Index);
until (Width = 0) or (Place - Width < DisplayArea.UpperLeft.Col);
Start.Col := Succ(Stop.Col - Index);
Dec(Index);
if ColStart^[Index] <> DisplayArea.UpperLeft.Col then
begin
Temp := ColStart^[Index] - DisplayArea.UpperLeft.Col;
for Place := 0 to Index do
Dec(ColStart^[Place], Temp);
end;
if Index > 0 then
begin
for Place := 0 to (Pred(Index) shr 1) do
begin
Temp := ColStart^[Index - Place];
ColStart^[Index - Place] := ColStart^[Place];
ColStart^[Place] := Temp;
end;
end;
end; { with }
end; { Spreadsheet.FindScreenColStart }
procedure Spreadsheet.FindScreenColStop;
{ Find the ending screen column when the starting column is known }
var
Index, Place : Byte;
Width : Byte;
begin
with ScreenBlock do
begin
Index := 0;
Place := DisplayArea.UpperLeft.Col;
Width := ColWidth(Start.Col);
repeat
ColStart^[Index] := Place;
Inc(Place, Width);
Inc(Index);
if Longint(Index) + Start.Col > MaxCols then
Width := 0
else
Width := ColWidth(Index + Start.Col);
until (Width = 0) or (Place + Width > Succ(DisplayArea.LowerRight.Col));
Stop.Col := Pred(Start.Col + Index);
end; { with }
end; { Spreadsheet.FindScreenColStop }
procedure Spreadsheet.FindScreenRowStart;
{ Find the starting screen row when the ending row is known }
begin
with ScreenBlock do
begin
if Longint(Stop.Row) - TotalRows < 0 then
begin
Start.Row := 1;
FindScreenRowStop;
end
else
Start.Row := Succ(Stop.Row - TotalRows);
end; { with }
end; { Spreadsheet.FindScreenRowStart }
procedure Spreadsheet.FindScreenRowStop;
{ Find the ending screen row when the starting row is known }
begin
with ScreenBlock do
begin
if Longint(Start.Row) + TotalRows > Succ(LongInt(MaxRows)) then
begin
Stop.Row := MaxRows;
FindScreenRowStart;
end
else
Stop.Row := Pred(Start.Row + TotalRows);
end; { with }
end; { Spreadsheet.FindScreenRowStop }
procedure Spreadsheet.SetBlankArea;
{ Find the size of the blank area (the area at the right edge of the
spreadsheet that is not used }
var
C : Word;
begin
with BlankArea do
begin
Move(DisplayArea, BlankArea, SizeOf(DisplayArea));
with ScreenBlock do
C := ColStart^[Stop.Col - Start.Col] + ColWidth(Stop.Col);
if C > DisplayArea.LowerRight.Col then
NoBlankArea := True
else begin
NoBlankArea := False;
UpperLeft.Col := C;
end;
end; { with }
end; { Spreadsheet.SetBlankArea }
function Spreadsheet.AddCell(CellType : CellTypes; P : CellPos; E : Boolean;
V : Extended; I : LStringPtr) : Boolean;
{ Add a new cell to the spreadsheet }
var
CP, S : CellPtr;
OldLastPos : CellPos;
Good : Boolean;
begin
AddCell := False;
case CellType of
ClValue : CP := New(ValueCellPtr, Init(P, E, V));
ClFormula : CP := New(FormulaCellPtr, Init(P, E, V, I));
ClText : CP := New(TextCellPtr, Init(P, I));
ClRepeat : CP := New(RepeatCellPtr, Init(P, I^.Data^[2]));
end; { case }
if CP = nil then
Exit;
if not CellHash.Add(CP) then
begin
Dispose(CP, Done);
Exit;
end;
OldLastPos := LastPos;
LastPos.Col := Max(P.Col, LastPos.Col);
LastPos.Row := Max(P.Row, LastPos.Row);
if not OverwriteHash.Add(CP, CP^.Overwritten(CellHash, FormatHash,
WidthHash, LastPos, MaxCols, GetColWidth,
DisplayFormulas)) then
begin
LastPos := OldLastPos;
CellHash.Delete(CP^.Loc, S);
Dispose(CP, Done);
Exit;
end;
S := OverwriteHash.Search(CP^.Loc);
if S <> Empty then
Good := OverwriteHash.Change(S, S^.Overwritten(CellHash, FormatHash,
WidthHash, LastPos, MaxCols, GetColWidth,
DisplayFormulas));
AddCell := True;
end; { Spreadsheet.AddCell }
procedure Spreadsheet.DeleteCell(P : CellPos; var Deleted : Boolean);
{ Delete a cell from the spreadsheet }
var
CP : CellPtr;
Good : Boolean;
begin
CellHash.Delete(P, CP);
if CP <> nil then
begin
Dispose(CP, Done);
OverwriteHash.Delete(P);
if P.Col > 1 then
begin
Dec(P.Col);
CP := OverwriteHash.Search(P);
if CP = Empty then
CP := CellHash.Search(P);
if CP <> Empty then
Good := OverwriteHash.Change(CP, CP^.Overwritten(CellHash,
FormatHash, WidthHash, LastPos, MaxCols,
GetColWidth, DisplayFormulas));
end;
Deleted := True;
end
else
Deleted := False;
end; { Spreadsheet.DeleteCell }
procedure Spreadsheet.DeleteBlock(B : Block; var Deleted : Boolean);
{ Delete a block of cells from the spreadsheet }
var
P : CellPos;
H, D : HashItemPtr;
Counter : Word;
CP : CellPtr;
begin
Scr.PrintMessage(MsgBlockDelete);
Deleted := False;
with CellHash, B do
begin
for Counter := 1 to Buckets do
begin
H := HashData^[Counter];
while H <> nil do
begin
D := H;
H := H^.Next;
Move(D^.Data, CP, SizeOf(CP));
with CP^ do
begin
if CellInBlock(Loc) then
DeleteCell(Loc, Deleted);
end; { with }
end;
end;
end; { with }
Scr.ClearMessage;
end; { DeleteBlock }
function Spreadsheet.CellToFString(P : CellPos; var Color : Byte) : String;
{ Create a formatted string from a cell }
var
CP : CellPtr;
S : String;
S1 : DollarStr;
F : FormatType;
ColorFound : Boolean;
Colr : Byte;
begin
ColorFound := True;
if Current and (SameCellPos(P, CurrPos)) then
Color := Colors.HighlightColor
else if BlockOn and (CurrBlock.CellInBlock(P)) then
Color := Colors.BlockColor
else
ColorFound := False;
CP := CellHash.Search(P);
if (CP^.HasError) then
begin
S := ErrorString;
S1 := '';
if ColorFound then
Inc(Color, Blink)
else
Color := Colors.CellErrorColor;
F := Ord(JCenter) shl JustShift;
end
else begin
S := CP^.FormattedString(OverwriteHash, FormatHash, WidthHash,
GetColWidth, P, DisplayFormulas, 1,
ColWidth(P.Col), S1, Colr);
if not ColorFound then
Color := Colr;
F := CP^.Format(FormatHash, DisplayFormulas);
end;
case Justification((F shr JustShift) and JustPart) of
JLeft : CellToFString := S1 + LeftJustStr(S, ColWidth(P.Col) -
Length(S1));
JCenter : CellToFString := S1 + CenterStr(S, ColWidth(P.Col) -
Length(S1));
JRight : CellToFString := S1 + RightJustStr(S, ColWidth(P.Col) -
Length(S1));
end; { case }
end; { Spreadsheet.CellToFString }
procedure Spreadsheet.SetLastPos(DPos : CellPos);
{ Find the last position used in a spreadsheet }
var
CP : CellPtr;
Counter : Word;
ColFound, RowFound : Boolean;
begin
with CellHash do
begin
ColFound := DPos.Col < LastPos.Col;
RowFound := DPos.Row < LastPos.Row;
if (not ColFound) or (not RowFound) then
begin
if not ColFound then
LastPos.Col := 1;
if not RowFound then
LastPos.Row := 1;
CP := FirstItem;
while CP <> nil do
begin
if not ColFound then
begin
if CP^.Loc.Col > LastPos.Col then
begin
LastPos.Col := CP^.Loc.Col;
ColFound := LastPos.Col = DPos.Col;
if ColFound and RowFound then
Exit;
end;
end;
if not RowFound then
begin
if CP^.Loc.Row > LastPos.Row then
begin
LastPos.Row := CP^.Loc.Row;
RowFound := LastPos.Row = DPos.Row;
if ColFound and RowFound then
Exit;
end;
end;
CP := NextItem;
end;
end;
end; { with }
end; { Spreadsheet.SetLastPos }
function Spreadsheet.GetCurrCol : Word;
{ Find the current column }
begin
GetCurrCol := CurrPos.Col;
end; { Spreadsheet.GetCurrCol }
function Spreadsheet.GetCurrRow : Word;
{ Find the current row }
begin
GetCurrRow := CurrPos.Row;
end; { Spreadsheet.GetCurrRow }
function Spreadsheet.ColToX(Col : Word) : Byte;
{ Find where on the screen a column starts }
begin
ColToX := ColStart^[Col - ScreenBlock.Start.Col];
end; { Spreadsheet.ColToX }
function Spreadsheet.RowToY(Row : Word) : Byte;
{ Find where on the screen a row starts }
begin
RowToY := Row + DisplayArea.UpperLeft.Row - ScreenBlock.Start.Row;
end; { Spreadsheet.RowToY }
{$F+}
function Spreadsheet.ColWidth(Col : Word) : Byte;
{ Returns the width of a column }
var
Width : Word;
begin
Width := WidthHash.Search(Col);
if Width = 0 then
ColWidth := DefaultColWidth
else
ColWidth := Width;
end; { Spreadsheet.ColWidth }
{$F-}
function Spreadsheet.SameCellPos(P1, P2 : CellPos) : Boolean;
{ Returns True if two cells are at the same position }
begin
SameCellPos := Compare(P1, P2, SizeOf(CellPos));
end; { Spreadsheet.SameCellPos }
procedure Spreadsheet.FixOverwrite;
{ Fixes the overwrite hash table when the formats have been changed }
var
CP, D : CellPtr;
Counter : Word;
Good : Boolean;
begin
with CellHash do
begin
CP := FirstItem;
while CP <> nil do
begin
if not OverwriteHash.Add(CP, CP^.Overwritten(CellHash, FormatHash,
WidthHash, LastPos, MaxCols, GetColWidth,
DisplayFormulas)) then
begin
CellHash.Delete(CP^.Loc, D);
Dispose(CP, Done);
Exit;
end;
CP := OverwriteHash.Search(CP^.Loc);
if CP <> Empty then
Good := OverwriteHash.Change(CP, CP^.Overwritten(CellHash,
FormatHash, WidthHash, LastPos,
MaxCols, GetColWidth,
DisplayFormulas));
CP := NextItem;
end;
end; { with }
end; { Spreadsheet.FixOverwrite }
function Spreadsheet.FromFile(Name : PathStr) : Boolean;
{ Reads a spreadsheet from disk }
var
Header : String[Length(FileHeader)];
TotalC : Longint;
TotalW : Word;
TotalF : Longint;
S : SSStream;
NewLastPos : CellPos;
begin
FromFile := True;
Name := UpperCase(Name);
S.Init(Name, SOpen);
if S.Status <> 0 then
begin
Scr.PrintError(ErrNoOpen);
Init(0, DefaultMaxCols, DefaultMaxRows, DefaultMaxDecimalPlaces,
DefaultDefaultDecimalPlaces, DefaultDefaultColWidth);
Exit;
end
else begin
Header[0] := Chr(Length(FileHeader));
S.Read(Header[1], Length(FileHeader));
if (S.Status <> 0) or (Header <> FileHeader) then
begin
Scr.PrintError(ErrNotSpreadsheet);
S.Done;
Init(0, DefaultMaxCols, DefaultMaxRows, DefaultMaxDecimalPlaces,
DefaultDefaultDecimalPlaces, DefaultDefaultColWidth);
Exit;
end;
FileName := Name;
S.Read(NewLastPos, SizeOf(NewLastPos));
S.Read(TotalW, SizeOf(TotalW));
S.Read(TotalF, SizeOf(TotalF));
S.Read(TotalC, SizeOf(TotalC));
if not Init(TotalC, DefaultMaxCols, DefaultMaxRows,
DefaultMaxDecimalPlaces, DefaultDefaultDecimalPlaces,
DefaultDefaultColWidth) then
begin
S.Done;
FromFile := False;
Exit;
end;
LastPos := NewLastPos;
Scr.PrintMessage(MsgLoad);
FileName := Name;
WidthHash.Load(S, TotalW);
FormatHash.Load(S, TotalF);
CellHash.Load(S, TotalC);
S.Done;
FixOverwrite;
Update(DisplayNo);
Scr.ClearMessage;
end;
FromFile := True;
end; { Spreadsheet.FromFile }
procedure Spreadsheet.ToFile(Name : PathStr);
{ Writes a spreadsheet to disk }
var
Header : String[Length(FileHeader)];
S : SSStream;
begin
S.Init(Name, SCreate);
if S.Status <> 0 then
begin
Scr.PrintError(ErrNoOpen);
Exit;
end;
Scr.PrintMessage(MsgSave);
FileName := Name;
Header := FileHeader;
S.Write(Header[1], Length(Header));
S.Write(LastPos, SizeOf(LastPos));
S.Write(WidthHash.Items, 2);
S.Write(FormatHash.Items, SizeOf(FormatHash.Items));
S.Write(CellHash.Items, SizeOf(CellHash.Items));
WidthHash.Store(S);
FormatHash.Store(S);
CellHash.Store(S);
Scr.ClearMessage;
S.Done;
if S.Status <> 0 then
Scr.PrintError(ErrDiskFull)
else
SetChanged(NotChanged);
end; { Spreadsheet.ToFile }
procedure Spreadsheet.CheckForSave;
{ Before prompting for a file name, this will check to see if you want to
save the spreadsheet }
var
S : PathStr;
GoodFile, ESCPressed : Boolean;
begin
if Changed and (GetYesNo(PromptSaveYN, ESCPressed)) then
begin
S := FileName;
repeat
GoodFile := True;
if S = '' then
begin
S := ReadString(PromptFileSave, Pred(SizeOf(PathStr)), ESCPressed);
if S = '' then
Exit;
end;
if FileExists(S) then
begin
GoodFile := GetYesNo(PromptOverwriteFile, ESCPressed);
if ESCPressed then
Exit;
if not GoodFile then
S := '';
end;
until GoodFile;
ToFile(S);
end;
end; { Spreadsheet.CheckForSave }
procedure Spreadsheet.ChangeWidth;
{ Changes the width of a column }
var
W, C : Word;
Good : Boolean;
P : CellPos;
O : Word;
CP : CellPtr;
begin
C := GetColumn(PromptColumnWidth, MaxCols, ColSpace);
if C = 0 then
Exit;
W := GetNumber(PromptNewWidth, MinColWidth, MaxColWidth, Good);
if not Good then
Exit;
with WidthHash do
begin
Delete(C);
if W <> DefaultColWidth then
Good := Add(C, W);
end; { with }
if not Good then
Exit;
SetScreenColStart(ScreenBlock.Start.Col);
SetChanged(WasChanged);
with OverwriteHash do
begin
Done;
Init(OverwriteHashStart(CellHash.Items));
end;
with CellHash do
begin
CP := FirstItem;
while CP <> nil do
begin
O := CP^.Overwritten(CellHash, FormatHash, WidthHash, LastPos,
MaxCols, GetColWidth, DisplayFormulas);
if O <> 0 then
Good := OverwriteHash.Add(CP, O);
CP := NextItem;
end;
end; { with }
if CurrPos.Col > ScreenBlock.Stop.Col then
SetScreenColStart(CurrPos.Col);
Display;
end; { Spreadsheet.ChangeWidth }
function Spreadsheet.CellHashStart(TotalCells : Longint) : BucketRange;
{ Formula that determines the number of cell hash table buckets }
begin
CellHashStart := Max(100, Min(MaxBuckets, TotalCells div 10));
end; { Spreadsheet.CellHashStart }
function Spreadsheet.WidthHashStart(TotalCells : Longint) : BucketRange;
{ Formula that determines the number of width hash table buckets }
begin
WidthHashStart := 10;
end; { Spreadsheet.WidthHashStart }
function Spreadsheet.OverwriteHashStart(TotalCells : Longint) : BucketRange;
{ Formula that determines the number of overwrite hash table buckets }
begin
OverwriteHashStart := 10;
end; { Spreadsheet.OverwriteHashStart }
procedure Spreadsheet.Print;
{ Prints a spreadsheet to a file or a printer }
var
S : PathStr;
F : Text;
PageCols : Byte;
PageV, PageH : Word;
Finished, GoodFile, Error, Compress, Border, ESCPressed : Boolean;
StartCol : Word;
StartRow : Word;
procedure WString(S : String);
begin
Writeln(F, S);
if IOResult <> 0 then
begin
if S = PrinterName then
Scr.PrintError(ErrPrinterError)
else
Scr.PrintError(ErrDiskFull);
Error := True;
Finished := True;
end;
end; { WString }
function RowStartString(Row : Word) : String;
begin
if (PageH = 1) and Border then
RowStartString := LeftJustStr(RowToString(Row), RowNumberSpace)
else
RowStartString := '';
end; { RowStartString }
procedure PrintPage;
var
Counter : Word;
S : String;
Color, Cols, Rows : Byte;
P : CellPos;
begin
for Counter := 1 to PrintTopMargin do
begin
WString('');
if Error then
Exit;
end;
Rows := Min(PrintRows - PrintTopMargin - PrintBottomMargin,
Succ(MaxRows - StartRow));
if Border then
Dec(Rows);
Cols := 0;
Counter := Length(RowStartString(StartRow));
while Counter <= PageCols do
begin
Inc(Counter, ColWidth(Cols + StartCol));
Inc(Cols);
end;
Dec(Cols);
Cols := Min(Cols, Succ(MaxCols - StartCol));
if Border and (PageV = 1) then
begin
S := FillString(Length(RowStartString(StartRow)), ' ');
for Counter := StartCol to Pred(StartCol + Cols) do
S := S + CenterStr(ColToString(Counter), ColWidth(Counter));
WString(S);
if Error then
Exit;
end;
for P.Row := StartRow to Pred(StartRow + Rows) do
begin
S := RowStartString(P.Row);
for P.Col := StartCol to Pred(StartCol + Cols) do
S := S + CellToFString(P, Color);
WString(S);
if Error then
Exit;
end;
Inc(StartCol, Cols);
if (StartCol > LastPos.Col) or (StartCol = 0) then
begin
Inc(StartRow, Rows);
if (StartRow > LastPos.Row) or (StartRow = 0) then
Finished := True
else begin
Inc(PageV);
PageH := 1;
StartCol := 1;
end;
end
else
Inc(PageH);
Write(F, Chr(FF));
end; { PrintPage }
begin { Spreadsheet.Print }
repeat
GoodFile := True;
S := ReadString(PromptFilePrint, Pred(SizeOf(PathStr)), ESCPressed);
if ESCPressed then
Exit;
if S = '' then
S := PrinterName
else begin
if FileExists(S) then
begin
GoodFile := GetYesNo(PromptOverwriteFile, ESCPressed);
if ESCPressed then
Exit;
end;
end;
until GoodFile;
Compress := GetYesNo(PromptCompressPrint, ESCPressed);
if ESCPressed then
Exit;
Border := GetYesNo(PromptBorderPrint, ESCPressed);
if ESCPressed then
Exit;
Error := False;
{$I-}
Assign(F, S);
Rewrite(F);
if IOResult <> 0 then
begin
Scr.PrintError(ErrNoOpen);
Exit;
end;
if Compress then
begin
PageCols := PrintCompressedCols;
Write(F, PrinterCompressChar);
end
else
PageCols := PrintNormalCols;
PageV := 1;
PageH := 1;
StartCol := 1;
StartRow := 1;
Finished := False;
repeat
PrintPage;
until Finished;
Close(F);
{$I+}
end; { Spreadsheet.Print }
procedure Spreadsheet.DeleteColumn;
{ Deletes a column from the spreadsheet }
var
C : Word;
Start, Stop, P, OldPos, OldSPos : CellPos;
Deleted : Boolean;
OldName : PathStr;
CP : CellPtr;
H : HashItemPtr;
B : Block;
F : File;
Good : Boolean;
begin
C := GetColumn(PromptColumnDelete, MaxCols, ColSpace);
if C = 0 then
Exit;
OldPos := CurrPos;
OldSPos := ScreenBlock.Start;
P.Col := C;
Deleted := False;
if P.Col <= LastPos.Col then
begin
with B do
begin
Start.Col := P.Col;
Start.Row := 1;
Stop.Col := P.Col;
Stop.Row := LastPos.Row;
Good := FormatHash.Delete(Start, Stop);
end; { with }
DeleteBlock(B, Deleted);
end;
Dec(LastPos.Col);
WidthHash.Delete(C);
with CellHash do
begin
CP := FirstItem;
while CP <> nil do
begin
with CP^ do
begin
if Loc.Col > C then
Dec(Loc.Col);
if (CP^.ShouldUpdate) and (Loc.Col > C) then
FixFormulaCol(CP, -1, MaxCols, MaxRows);
end; { with }
CP := NextItem;
end;
end; { with }
with WidthHash do
begin
H := FirstItem;
while H <> nil do
begin
if WordPtr(@H^.Data)^ > C then
Dec(WordPtr(@H^.Data)^);
H := NextItem;
end;
end; { with }
with FormatHash do
begin
H := FirstItem;
while H <> nil do
begin
Move(H^.Data, Start, SizeOf(Start));
Move(H^.Data[SizeOf(CellPos)], Stop, SizeOf(Stop));
if (Start.Col = C) and (Stop.Col = C) then
Good := Delete(Start, Stop)
else begin
if Start.Col > C then
begin
Dec(Start.Col);
Move(Start, H^.Data, SizeOf(Start));
end;
if Stop.Col > C then
begin
Dec(Stop.Col);
Move(Stop, H^.Data[SizeOf(CellPos)], SizeOf(Stop));
end;
end;
H := NextItem;
end;
end; { with }
OldName := FileName;
ToFile(TempFileName);
Done;
Good := FromFile(TempFileName);
Assign(F, TempFileName);
Erase(F);
FileName := OldName;
if Deleted then
P.Row := LastPos.Row
else
P.Row := 1;
Dec(P.Col);
SetLastPos(P);
MakeCurrent;
SetChanged(WasChanged);
CurrPos := OldPos;
SetScreenColStart(OldSPos.Col);
SetScreenRowStart(OldSPos.Row);
Display;
end; { Spreadsheet.DeleteColumn }
procedure Spreadsheet.InsertColumn;
{ Inserts a column into the spreadsheet }
var
C : Word;
Start, Stop, P, OldPos, OldSPos : CellPos;
Deleted : Boolean;
H : HashItemPtr;
OldName : PathStr;
CP : CellPtr;
B : Block;
F : File;
Good : Boolean;
begin
C := GetColumn(PromptColumnInsert, MaxCols, ColSpace);
if C = 0 then
Exit;
OldPos := CurrPos;
OldSPos := ScreenBlock.Start;
Deleted := False;
if LastPos.Col = MaxCols then
begin
with B do
begin
Start.Col := MaxCols;
Start.Row := 1;
Stop.Col := MaxCols;
Stop.Row := LastPos.Row;
Good := FormatHash.Delete(Start, Stop);
end; { with }
DeleteBlock(B, Deleted);
end
else
Inc(LastPos.Col);
P.Col := C;
WidthHash.Delete(MaxCols);
with CellHash do
begin
CP := FirstItem;
while CP <> nil do
begin
with CP^ do
begin
if Loc.Col >= C then
Inc(Loc.Col);
if (CP^.ShouldUpdate) and (Loc.Col >= C) then
FixFormulaCol(CP, 1, MaxCols, MaxRows);
end; { with }
CP := NextItem;
end;
end; { with }
with WidthHash do
begin
H := FirstItem;
while H <> nil do
begin
if WordPtr(@H^.Data)^ >= C then
Inc(WordPtr(@H^.Data)^);
H := NextItem;
end;
end; { with }
with FormatHash do
begin
H := FirstItem;
while H <> nil do
begin
Move(H^.Data, Start, SizeOf(Start));
Move(H^.Data[SizeOf(CellPos)], Stop, SizeOf(Stop));
if Start.Col >= C then
begin
Inc(Start.Col);
Move(Start, H^.Data, SizeOf(Start));
end;
if Stop.Col >= C then
begin
Inc(Stop.Col);
Move(Stop, H^.Data[SizeOf(CellPos)], SizeOf(Stop));
end;
H := NextItem;
end;
end; { with }
OldName := FileName;
ToFile(TempFileName);
Done;
Good := FromFile(TempFileName);
Assign(F, TempFileName);
Erase(F);
FileName := OldName;
if Deleted then
P.Row := LastPos.Row
else
P.Row := 1;
if LastPos.Col = MaxCols then
P.Col := MaxCols
else
Inc(P.Col);
SetLastPos(P);
MakeCurrent;
SetChanged(WasChanged);
CurrPos := OldPos;
SetScreenColStart(OldSPos.Col);
SetScreenRowStart(OldSPos.Row);
Display;
end; { Spreadsheet.InsertColumn }
procedure Spreadsheet.DeleteRow;
{ Deletes a row from the spreadsheet }
var
R : Word;
Start, Stop, P, OldPos, OldSPos : CellPos;
Deleted : Boolean;
OldName : PathStr;
CP : CellPtr;
B : Block;
F : File;
Good : Boolean;
H : HashItemPtr;
begin
R := GetRow(PromptRowDelete, MaxRows);
if (R = 0) or (R > LastPos.Row) then
Exit;
OldPos := CurrPos;
OldSPos := ScreenBlock.Start;
P.Row := R;
if P.Row <= LastPos.Row then
begin
with B do
begin
Start.Col := 1;
Start.Row := P.Row;
Stop.Col := LastPos.Col;
Stop.Row := P.Row;
Good := FormatHash.Delete(Start, Stop);
end; { with }
DeleteBlock(B, Deleted);
end;
Dec(LastPos.Row);
with CellHash do
begin
CP := FirstItem;
while CP <> nil do
begin
with CP^ do
begin
if Loc.Row > R then
Dec(Loc.Row);
if (CP^.ShouldUpdate) and (Loc.Row > R) then
FixFormulaRow(CP, -1, MaxCols, MaxRows);
end; { with }
CP := NextItem;
end;
end; { with }
with FormatHash do
begin
H := FirstItem;
while H <> nil do
begin
Move(H^.Data, Start, SizeOf(Start));
Move(H^.Data[SizeOf(CellPos)], Stop, SizeOf(Stop));
if (Start.Row = R) and (Stop.Row = R) then
Good := Delete(Start, Stop)
else begin
if Start.Row > R then
begin
Dec(Start.Row);
Move(Start, H^.Data, SizeOf(Start));
end;
if Stop.Row > R then
begin
Dec(Stop.Row);
Move(Stop, H^.Data[SizeOf(CellPos)], SizeOf(Stop));
end;
end;
H := NextItem;
end;
end; { with }
OldName := FileName;
ToFile(TempFileName);
Done;
Good := FromFile(TempFileName);
Assign(F, TempFileName);
Erase(F);
FileName := OldName;
if Deleted then
P.Col := LastPos.Col
else
P.Col := 1;
Dec(P.Row);
SetLastPos(P);
MakeCurrent;
SetChanged(WasChanged);
CurrPos := OldPos;
SetScreenColStart(OldSPos.Col);
SetScreenRowStart(OldSPos.Row);
Display;
end; { Spreadsheet.DeleteRow }
procedure Spreadsheet.InsertRow;
{ Inserts a row into the spreadsheet }
var
R : Word;
Start, Stop, P, OldPos, OldSPos : CellPos;
Deleted : Boolean;
OldName : PathStr;
CP : CellPtr;
B : Block;
F : File;
Good : Boolean;
H : HashItemPtr;
begin
R := GetRow(PromptRowInsert, MaxRows);
if (R = 0) or (R > LastPos.Row) then
Exit;
OldPos := CurrPos;
OldSPos := ScreenBlock.Start;
if LastPos.Row = MaxRows then
begin
with B do
begin
Start.Col := 1;
Start.Row := MaxRows;
Stop.Col := LastPos.Col;
Stop.Row := MaxRows;
Good := FormatHash.Delete(Start, Stop);
end; { with }
DeleteBlock(B, Deleted);
end
else
Inc(LastPos.Row);
P.Row := R;
with CellHash do
begin
CP := FirstItem;
while CP <> nil do
begin
with CP^ do
begin
if Loc.Row >= R then
Inc(Loc.Row);
if (CP^.ShouldUpdate) and (Loc.Row >= R) then
FixFormulaRow(CP, 1, MaxCols, MaxRows);
end; { with }
CP := NextItem;
end;
end; { with }
with FormatHash do
begin
H := FirstItem;
while H <> nil do
begin
Move(H^.Data, Start, SizeOf(Start));
Move(H^.Data[SizeOf(CellPos)], Stop, SizeOf(Stop));
if Start.Row >= R then
begin
Inc(Start.Row);
Move(Start, H^.Data, SizeOf(Start));
end;
if Stop.Row >= R then
begin
Inc(Stop.Row);
Move(Stop, H^.Data[SizeOf(CellPos)], SizeOf(Stop));
end;
H := NextItem;
end;
end; { with }
OldName := FileName;
ToFile(TempFileName);
Done;
Good := FromFile(TempFileName);
Assign(F, TempFileName);
Erase(F);
FileName := OldName;
if Deleted then
P.Col := LastPos.Col
else
P.Col := 1;
if LastPos.Row = MaxRows then
P.Row := MaxRows
else
Inc(P.Row);
SetLastPos(P);
MakeCurrent;
SetChanged(WasChanged);
CurrPos := OldPos;
SetScreenColStart(OldSPos.Col);
SetScreenRowStart(OldSPos.Row);
Display;
end; { Spreadsheet.InsertRow }
end.