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unit MainForm;
interface
uses
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.ComCtrls, SynEdit, Vcl.StdCtrls,
PythonEngine, PythonGUIInputOutput, SynEditPythonBehaviour,
SynEditHighlighter, SynEditCodeFolding, SynHighlighterPython, Vcl.ExtCtrls;
type
TForm1 = class(TForm)
sePythonCode: TSynEdit;
HeaderControl1: THeaderControl;
Panel1: TPanel;
Splitter1: TSplitter;
Panel2: TPanel;
HeaderControl2: THeaderControl;
mePythonOutput: TMemo;
SynPythonSyn: TSynPythonSyn;
SynEditPythonBehaviour: TSynEditPythonBehaviour;
PythonEngine: TPythonEngine;
PythonGUIInputOutput: TPythonGUIInputOutput;
btnRun: TButton;
PythonModule: TPythonModule;
Button1: TButton;
Button2: TButton;
procedure btnRunClick(Sender: TObject);
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure PythonModuleEvents0Execute(Sender: TObject; PSelf, Args: PPyObject;
var Result: PPyObject);
procedure PythonModuleEvents1Execute(Sender: TObject; PSelf, Args: PPyObject;
var Result: PPyObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
uses
System.Threading,
System.Math;
procedure TForm1.btnRunClick(Sender: TObject);
begin
GetPythonEngine.ExecString(UTF8Encode(sePythonCode.Text));
end;
function IsPrime(x: Integer): Boolean;
begin
if (x <= 1) then Exit(False);
var q := Floor(Sqrt(x));
for var i := 2 to q do
if (x mod i = 0) then
Exit(False);
Exit(True);
end;
function CountPrimes(MaxN: integer): integer;
begin
var Count := 0;
TParallel.&For(2, MaxN, procedure(i: integer)
begin
if IsPrime(i) then
AtomicIncrement(Count);
end);
Result := Count;
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
sePythonCode.Text :=
'from delphi_module import delphi_is_prime'#13#10 + //0
'from timeit import Timer'#13#10 + //1
''#13#10 + //3
'def count_primes(max_n):'#13#10 + //4
' res = 0'#13#10 + //5
' for i in range(2, max_n + 1):'#13#10 + //6
' if delphi_is_prime(i):'#13#10 + //7
' res += 1'#13#10 + //8
' return res'#13#10 + //9
''#13#10 + //10
'def test():'#13#10 + //11
' max_n = 1000000'#13#10 + //12
' print(f''Number of primes between 0 and {max_n} = {count_primes(max_n)}'')'#13#10 + //13
''#13#10 + //14
'def main():'#13#10 + //15
' print(f''Elapsed time: {Timer(stmt=test).timeit(1)} secs'')'#13#10 + //16
''#13#10 + //17
'if __name__ == ''__main__'':'#13#10 + //18
' main()'#13#10; //19
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
sePythonCode.Text :=
'from delphi_module import delphi_count_primes'#13#10 + //0
'from timeit import Timer'#13#10 + //1
''#13#10 + //10
'def test():'#13#10 + //11
' max_n = 1000000'#13#10 + //12
' print(f''Number of primes between 0 and {max_n} = {delphi_count_primes(max_n)}'')'#13#10 + //13
''#13#10 + //14
'def main():'#13#10 + //15
' print(f''Elapsed time: {Timer(stmt=test).timeit(1)} secs'')'#13#10 + //16
''#13#10 + //17
'if __name__ == ''__main__'':'#13#10 + //18
' main()'#13#10; //19
end;
procedure TForm1.PythonModuleEvents0Execute(Sender: TObject; PSelf, Args:
PPyObject; var Result: PPyObject);
Var
N: Integer;
begin
with GetPythonEngine do
if PyArg_ParseTuple(Args, 'i:delphi_is_prime',@N) <> 0 then
begin
if IsPrime(N) then
Result := PPyObject(Py_True)
else
Result := PPyObject(Py_False);
Py_INCREF(Result);
end else
Result := nil;
end;
procedure TForm1.PythonModuleEvents1Execute(Sender: TObject; PSelf, Args:
PPyObject; var Result: PPyObject);
Var
N: Integer;
begin
with GetPythonEngine do
if PyArg_ParseTuple(Args, 'i:delphi_is_prime',@N) <> 0 then
begin
Result := PyLong_FromLong(CountPrimes(N));
Py_INCREF(Result);
end else
Result := nil;
end;
end.