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lazarus-ccr/components/fpspreadsheet/examples/other/demo_sorting.pas

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program demo_sorting;
{$mode objfpc}{$H+}
uses
{$IFDEF UNIX}{$IFDEF UseCThreads}
cthreads,
{$ENDIF}{$ENDIF}
SysUtils, Classes
{ you can add units after this },
TypInfo, fpSpreadsheet, fpsutils;
var
workbook: TsWorkbook;
worksheet: TsWorksheet;
s: String;
sortParams: TsSortParams;
procedure SortSingleColumn;
var
i: Integer;
n: Double;
begin
WriteLn('Sorting of a single column');
workbook := TsWorkbook.Create;
try
worksheet := workbook.AddWorksheet('Test');
worksheet.WriteNumber(0, 0, 10); // A1
worksheet.WriteNumber(1, 0, 2); // A2
worksheet.WriteNumber(2, 0, 5); // A3
worksheet.WriteNumber(3, 0, 1); // A4
sortParams := InitSortParams(true, 1);
sortParams.Keys[0].ColRowIndex := 0;
sortParams.Keys[0].Order := ssoAscending;
worksheet.Sort(sortParams, 0, 0, 3, 0);
WriteLn(#9, 'A');
for i:=0 to 3 do
begin
n := worksheet.ReadAsNumber(i, 0);
WriteLn(i, #9, FloatToStr(n));
end;
WriteLn;
finally
workbook.Free;
end;
end;
procedure SortSingleRow;
var
i: Integer;
n: Double;
begin
WriteLn('Sorting of a single row');
workbook := TsWorkbook.Create;
try
worksheet := workbook.AddWorksheet('Test');
worksheet.WriteNumber(0, 0, 10); // A1
worksheet.WriteNumber(0, 1, 2); // B1
worksheet.WriteNumber(0, 2, 5); // C1
worksheet.WriteNumber(0, 3, 1); // D1
sortParams := InitSortParams(false, 1);
sortParams.Keys[0].ColRowIndex := 0;
sortParams.Keys[0].Order := ssoAscending;
worksheet.Sort(sortParams, 0, 0, 0, 3);
for i:=0 to 3 do
Write(char(ord('A')+i) + '1', #9);
WriteLn;
for i:=0 to 3 do
begin
n := worksheet.ReadAsNumber(0, i);
Write(FloatToStr(n), #9);
end;
WriteLn;
WriteLn;
finally
workbook.Free;
end;
end;
procedure SortTwoColumns_OneKey;
var
i: Integer;
n1, n2: Double;
begin
WriteLn('Sorting of two columns using a single key column');
WriteLn('(The 2nd column must be the negative of the 1st one)');
workbook := TsWorkbook.Create;
try
worksheet := workbook.AddWorksheet('Test');
worksheet.WriteNumber(0, 0, 10); // A1
worksheet.WriteNumber(1, 0, 2); // A2
worksheet.WriteNumber(2, 0, 5); // A3
worksheet.WriteNumber(3, 0, 1); // A4
worksheet.WriteNumber(0, 1, -10); // B1
worksheet.WriteNumber(1, 1, -2); // B2
worksheet.WriteNumber(2, 1, -5); // B3
worksheet.WriteNumber(3, 1, -1); // B4
sortParams := InitSortParams(true, 1);
sortParams.Keys[0].ColRowIndex := 0;
sortParams.Keys[0].Order := ssoAscending;
worksheet.Sort(sortParams, 0, 0, 3, 1);
WriteLn(#9, 'A', #9, 'B');
for i:=0 to 3 do
begin
n1 := worksheet.ReadAsNumber(i, 0);
n2 := worksheet.ReadAsNumber(i, 1);
WriteLn(i, #9, FloatToStr(n1), #9, FloatToStr(n2));
end;
WriteLn;
finally
workbook.Free;
end;
end;
procedure SortTwoRows_OneKey;
var
i: Integer;
n1, n2: Double;
begin
WriteLn('Sorting of two rows using a single key column');
WriteLn('(The 2nd row must be the negative of 1st row)');
workbook := TsWorkbook.Create;
try
worksheet := workbook.AddWorksheet('Test');
worksheet.WriteNumber(0, 0, 10); // A1
worksheet.WriteNumber(0, 1, 2); // B1
worksheet.WriteNumber(0, 2, 5); // C1
worksheet.WriteNumber(0, 3, 1); // D1
worksheet.WriteNumber(1, 0, -10); // A2
worksheet.WriteNumber(1, 1, -2); // B2
worksheet.WriteNumber(1, 2, -5); // C2
worksheet.WriteNumber(1, 3, -1); // D2
sortParams := InitSortParams(false, 1);
sortParams.Keys[0].ColRowIndex := 0;
sortParams.Keys[0].Order := ssoAscending;
worksheet.Sort(sortParams, 0, 0, 1, 3);
Write(#9);
for i:=0 to 3 do
Write(char(ord('A')+i) + '1', #9);
WriteLn;
Write('1', #9);
for i:=0 to 3 do begin
n1 := worksheet.ReadAsNumber(0, i);
Write(FloatToStr(n1), #9);
end;
WriteLn;
Write('2', #9);
for i:=0 to 3 do begin
n1 := worksheet.ReadAsNumber(1, i);
Write(FloatToStr(n1), #9);
end;
WriteLn;
WriteLn;
finally
workbook.Free;
end;
end;
procedure SortTwoColumns_TwoKeys;
var
i: Integer;
n1, n2: Double;
begin
WriteLn('Sorting of two columns on column "A" and "B"');
workbook := TsWorkbook.Create;
try
worksheet := workbook.AddWorksheet('Test');
worksheet.WriteNumber(0, 0, 10); // A1
worksheet.WriteNumber(1, 0, 1); // A2
worksheet.WriteNumber(2, 0, 1); // A3
worksheet.WriteNumber(3, 0, 1); // A4
worksheet.WriteNumber(0, 1, -10); // B1
worksheet.WriteNumber(1, 1, -2); // B2
worksheet.WriteNumber(2, 1, -5); // B3
worksheet.WriteNumber(3, 1, -1); // B4
sortParams := InitSortParams(true, 2);
sortParams.Keys[0].ColRowIndex := 0;
sortParams.Keys[0].Order := ssoAscending;
sortParams.Keys[1].ColRowIndex := 1;
sortParams.Keys[1].Order := ssoAscending;
worksheet.Sort(sortParams, 0, 0, 3, 1);
WriteLn(#9, 'A', #9, 'B');
for i:=0 to 3 do
begin
n1 := worksheet.ReadAsNumber(i, 0);
n2 := worksheet.ReadAsNumber(i, 1);
WriteLn(i, #9, FloatToStr(n1), #9, FloatToStr(n2));
end;
WriteLn;
finally
workbook.Free;
end;
end;
procedure SortTwoRows_TwoKeys;
var
i: Integer;
n1, n2: Double;
begin
WriteLn('Sorting of two rows on row "1" and "2"');
workbook := TsWorkbook.Create;
try
worksheet := workbook.AddWorksheet('Test');
worksheet.WriteNumber(0, 0, 10); // A1
worksheet.WriteNumber(0, 1, 1); // B1
worksheet.WriteNumber(0, 2, 1); // C1
worksheet.WriteNumber(0, 3, 1); // D1
worksheet.WriteNumber(1, 0, -10); // A2
worksheet.WriteNumber(1, 1, -2); // B2
worksheet.WriteNumber(1, 2, -5); // C2
worksheet.WriteNumber(1, 3, -1); // D2
sortParams := InitSortParams(false, 2);
sortParams.Keys[0].ColRowIndex := 0;
sortParams.Keys[0].Order := ssoAscending;
sortParams.Keys[1].ColRowIndex := 1;
sortParams.Keys[1].Order := ssoAscending;
worksheet.Sort(sortParams, 0, 0, 1, 3);
Write(#9);
for i:=0 to 3 do
Write(char(ord('A')+i) + '1', #9);
WriteLn;
Write('1', #9);
for i:=0 to 3 do begin
n1 := worksheet.ReadAsNumber(0, i);
Write(FloatToStr(n1), #9);
end;
WriteLn;
Write('2', #9);
for i:=0 to 3 do begin
n1 := worksheet.ReadAsNumber(1, i);
Write(FloatToStr(n1), #9);
end;
WriteLn;
WriteLn;
finally
workbook.Free;
end;
end;
procedure SortTwoColumns_TwoKeys_1;
var
i: Integer;
n: Double;
s: String;
begin
WriteLn('Sorting of two columns on column "A" and "B"');
WriteLn('(Expecting an ascending columns of characters and numbers)');
workbook := TsWorkbook.Create;
try
worksheet := workbook.AddWorksheet('Test');
worksheet.WriteUTF8Text(0, 0, 'E');
worksheet.WriteUTF8Text(1, 0, 'E');
worksheet.WriteUTF8Text(2, 0, 'C');
worksheet.WriteUTF8Text(3, 0, 'B');
worksheet.WriteUTF8Text(4, 0, 'D');
worksheet.WriteUTF8Text(5, 0, 'D');
worksheet.WriteUTF8Text(6, 0, 'A');
worksheet.WriteUTF8Text(7, 0, 'B');
worksheet.WriteUTF8Text(8, 0, 'C');
worksheet.WriteUTF8Text(9, 0, 'A');
worksheet.WriteNumber(0, 1, 9); // A2 --> E
worksheet.WriteNumber(1, 1, 8); // B2 --> E
worksheet.WriteNumber(2, 1, 5); // C2 --> C
worksheet.WriteNumber(3, 1, 2); // D2 --> B
worksheet.WriteNumber(4, 1, 6); // E2 --> D
worksheet.WriteNumber(5, 1, 7); // F2 --> D
worksheet.WriteNumber(6, 1, 1); // G2 --> A
worksheet.WriteNumber(7, 1, 3); // H2 --> B
worksheet.WriteNumber(8, 1, 4); // I2 --> C
worksheet.WriteNumber(9, 1, 0); // J2 --> A
sortParams := InitSortParams(true, 2);
sortParams.Keys[0].ColRowIndex := 0;
sortParams.Keys[0].Order := ssoAscending;
sortParams.Keys[1].ColRowIndex := 1;
sortParams.Keys[1].Order := ssoAscending;
worksheet.Sort(sortParams, 0, 0, 9, 1);
WriteLn(#9, 'A', #9, 'B');
for i:=0 to 9 do
begin
s := worksheet.ReadAsUTF8Text(i, 0);
n := worksheet.ReadAsNumber(i, 1);
WriteLn(i, #9, s, #9, FloatToStr(n));
end;
WriteLn;
finally
workbook.Free;
end;
end;
procedure SortTwoRows_TwoKeys_1;
var
i: Integer;
n1, n2: Double;
begin
WriteLn('Sorting of two rows on row "1" and "2"');
WriteLn('(Expecting an ascending row of numbers)');
workbook := TsWorkbook.Create;
try
worksheet := workbook.AddWorksheet('Test');
worksheet.WriteUTF8Text(0, 0, 'E');
worksheet.WriteUTF8Text(0, 1, 'E');
worksheet.WriteUTF8Text(0, 2, 'C');
worksheet.WriteUTF8Text(0, 3, 'B');
worksheet.WriteUTF8Text(0, 4, 'D');
worksheet.WriteUTF8Text(0, 5, 'D');
worksheet.WriteUTF8Text(0, 6, 'A');
worksheet.WriteUTF8Text(0, 7, 'B');
worksheet.WriteUTF8Text(0, 8, 'C');
worksheet.WriteUTF8Text(0, 9, 'A');
worksheet.WriteNumber(1, 0, 9); // A2 --> E
worksheet.WriteNumber(1, 1, 8); // B2 --> E
worksheet.WriteNumber(1, 2, 5); // C2 --> C
worksheet.WriteNumber(1, 3, 2); // D2 --> B
worksheet.WriteNumber(1, 4, 6); // E2 --> D
worksheet.WriteNumber(1, 5, 7); // F2 --> D
worksheet.WriteNumber(1, 6, 1); // G2 --> A
worksheet.WriteNumber(1, 7, 3); // H2 --> B
worksheet.WriteNumber(1, 8, 4); // I2 --> C
worksheet.WriteNumber(1, 9, 0); // J2 --> A
sortParams := InitSortParams(false, 2);
sortParams.Keys[0].ColRowIndex := 0;
sortParams.Keys[0].Order := ssoAscending;
sortParams.Keys[1].ColRowIndex := 1;
sortParams.Keys[1].Order := ssoAscending;
worksheet.Sort(sortParams, 0, 0, 1, 9);
Write(#9);
for i:=0 to 9 do
Write(char(ord('A')+i) + '1', #9);
WriteLn;
Write('1', #9);
for i:=0 to 9 do
Write(worksheet.ReadAsUTF8Text(0, i), #9);
WriteLn;
Write('2', #9);
for i:=0 to 9 do begin
n1 := worksheet.ReadAsNumber(1, i);
Write(FloatToStr(n1), #9);
end;
WriteLn;
WriteLn;
finally
workbook.Free;
end;
end;
begin
SortSingleColumn;
SortSingleRow;
SortTwoColumns_OneKey;
SortTwoRows_OneKey;
SortTwoColumns_TwoKeys;
SortTwoRows_TwoKeys;
SortTwoColumns_TwoKeys_1;
SortTwoRows_TwoKeys_1;
end.
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