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| unit Ext.Winapi.Console;
interface
uses Winapi.Windows, System.SysUtils, System.Classes, System.StrUtils, System.Math, System.SyncObjs, System.Generics.Collections;
type
TConsole = class(TObject)
strict private
FStdHandle: record
Input: THandle;
Output: THandle;
end;
FLock: TCriticalSection;
protected
FScreenSize: DWORD;
FScreenTopLeft: TCoord;
FLineLength: Integer;
strict private
function GetBufferInfo(): TConsoleScreenBufferInfo; inline;
function GetTitle(): string;
procedure SetTitle(const Value: string);
protected
procedure Lock(); inline;
procedure UnLock(); inline;
class function Coord(const AX, AY: SHORT): TCoord; inline;
function GetCursorPosition(): TCoord;
function SetCursorPosition(ACursorPosition: TCoord): TCoord;
public
constructor Create();
destructor Destroy(); override;
procedure Clear(); virtual;
function ReadInput(AOptions: TSysCharSet; const AText: string = ''): AnsiChar;
property StdHandleInput: THandle read FStdHandle.Input;
property StdHandleOutput: THandle read FStdHandle.Output;
property Title: string read GetTitle write SetTitle;
property LineLength: Integer read FLineLength write FLineLength;
end;
TColoredConsole = class(TConsole)
public
type
TTextColor = (
tcDefault = FOREGROUND_RED or FOREGROUND_GREEN or FOREGROUND_BLUE,
tcWhite = FOREGROUND_RED or FOREGROUND_GREEN or FOREGROUND_BLUE or FOREGROUND_INTENSITY,
tcRed = FOREGROUND_RED or FOREGROUND_INTENSITY,
tcDarkRed = FOREGROUND_RED,
tcGreen = FOREGROUND_GREEN or FOREGROUND_INTENSITY,
tcDarkGreen = FOREGROUND_GREEN,
tcBlue = FOREGROUND_BLUE or FOREGROUND_INTENSITY,
tcDarkBlue = FOREGROUND_BLUE,
tcYellow = FOREGROUND_RED or FOREGROUND_GREEN or FOREGROUND_INTENSITY,
tcDarkYellow = FOREGROUND_RED or FOREGROUND_GREEN,
tcPurple = FOREGROUND_RED or FOREGROUND_BLUE or FOREGROUND_INTENSITY,
tcDarkPurple = FOREGROUND_RED or FOREGROUND_BLUE,
tcSkyBlue = FOREGROUND_GREEN or FOREGROUND_BLUE or FOREGROUND_INTENSITY,
tcDarkSkyBlue = FOREGROUND_GREEN or FOREGROUND_BLUE
);
TBackgroundColor = (
bcDefault = 0,
bcWhite = BACKGROUND_RED or BACKGROUND_GREEN or BACKGROUND_BLUE or BACKGROUND_INTENSITY,
bcSilver = BACKGROUND_RED or BACKGROUND_GREEN or BACKGROUND_BLUE,
bcRed = BACKGROUND_RED or BACKGROUND_INTENSITY,
bcDarkRed = BACKGROUND_RED,
bcGreen = BACKGROUND_GREEN or BACKGROUND_INTENSITY,
bcDarkGreen = BACKGROUND_GREEN,
bcBlue = BACKGROUND_BLUE or BACKGROUND_INTENSITY,
bcDarkBlue = BACKGROUND_BLUE,
bcYellow = BACKGROUND_RED or BACKGROUND_GREEN or BACKGROUND_INTENSITY,
bcDarkYellow = BACKGROUND_RED or BACKGROUND_GREEN,
bcPurple = BACKGROUND_RED or BACKGROUND_BLUE or BACKGROUND_INTENSITY,
bcDarkPurple = BACKGROUND_RED or BACKGROUND_BLUE,
bcSkyBlue = BACKGROUND_GREEN or BACKGROUND_BLUE or BACKGROUND_INTENSITY,
bcDarkSkyBlue = BACKGROUND_GREEN or BACKGROUND_BLUE
);
TStatus = (sPending, sSuccess, sError);
TStatusLabels = array[TStatus] of string;
TStatusColors = array[TStatus] of TTextColor;
TTaskID = Int64;
const
DEFAULT_STATUS: TStatusLabels = ('PENDING', 'SUCCESS', 'ERROR');
DEFAULT_STATUS_COLORS: TStatusColors = (TTextColor.tcDarkYellow, TTextColor.tcDarkGreen,TTextColor.tcDarkRed);
strict private
type
TCoordByID = class(TDictionary<TTaskID, TCoord>)
private
FLock: TCriticalSection;
public
constructor Create();
destructor Destroy(); override;
procedure Add(ATaskID: TTaskID; const ACoord: TCoord);
procedure ApplyDelta(ADelta: Integer);
function ContainsTask(ATaskID: TTaskID): Boolean;
function ExtractTask(ATaskID: TTaskID): TCoord;
function TryGetCoord(ATaskID: TTaskID; out ACoord: TCoord): Boolean;
end;
strict private
FStepCoords: TCoordByID;
FCounter: TTaskID;
FStatus: TStatusLabels;
FStatusColors: TStatusColors;
FStatusLength: array[TStatus] of Integer;
FStatusLengthMax: Integer;
FStatusLengthMin: Integer;
private
function GetStatus(Index: TStatus): string;
procedure SetStatus(Index: TStatus; const Value: string);
public
constructor Create();
destructor Destroy(); override;
procedure Clear(); override;
function ReadInput(AOptions: TSysCharSet; const AText: string = ''; ATextColor: TTextColor = tcDefault; ABackgroundColor: TBackgroundColor = bcDefault): AnsiChar; overload;
procedure Write(const AText: string = ''; ATextColor: TTextColor = tcDefault; ABackgroundColor: TBackgroundColor = bcDefault);
procedure WriteLn(const AText: string = ''; ATextColor: TTextColor = tcDefault; ABackgroundColor: TBackgroundColor = bcDefault); overload;
procedure WriteLn(const ATexts: TArray<string>; ATextColor: TTextColor = tcDefault; ABackgroundColor: TBackgroundColor = bcDefault); overload;
procedure WriteTitle(const AText: string; ATextColor: TTextColor = tcWhite; ABackgroundColor: TBackgroundColor = bcDefault; AChar: Char = '-');
procedure WriteSeparator(ATextColor: TTextColor = tcWhite; ABackgroundColor: TBackgroundColor = bcDefault; AChar: Char = '-');
function WriteTaskStart(const AText :string; ATextColor: TTextColor = tcDefault; ABackgroundColor: TBackgroundColor = bcDefault): TTaskID;
procedure WriteTaskStep(ATaskID: TTaskID; AStatus: TStatus; ABackgroundColor: TBackgroundColor = bcDefault); overload;
procedure WriteTaskStep(ATaskID: TTaskID; APourcent: Integer; ABackgroundColor: TBackgroundColor = bcDefault); overload;
class function IfThen(AValue: Boolean; ATrue: TColoredConsole.TTextColor; AFalse: TColoredConsole.TTextColor): TColoredConsole.TTextColor; inline;
property Status[Index: TStatus]: string read GetStatus write SetStatus;
end;
implementation
{ TConsole }
//------------------------------------------------------------------------------
constructor TConsole.Create();
begin
inherited Create();
FStdHandle.Input := GetStdHandle(STD_INPUT_HANDLE);
FStdHandle.Output := GetStdHandle(STD_OUTPUT_HANDLE);
FLock := TCriticalSection.Create();
with GetBufferInfo() do
begin
FScreenSize := dwSize.X * dwSize.Y;
FLineLength := dwSize.X;
end;
FScreenTopLeft := Coord(0, 0);
end;
//------------------------------------------------------------------------------
destructor TConsole.Destroy();
begin
FreeAndNil(FLock);
inherited Destroy();
end;
//------------------------------------------------------------------------------
class function TConsole.Coord(const AX, AY: SHORT): TCoord;
begin
Result.X := AX;
Result.Y := AY;
end;
//------------------------------------------------------------------------------
procedure TConsole.Lock();
begin
FLock.Acquire();
end;
//------------------------------------------------------------------------------
procedure TConsole.UnLock();
begin
FLock.Release();
end;
//------------------------------------------------------------------------------
procedure TConsole.Clear();
var
NumberOfCharsWritten: DWORD;
begin
FillConsoleOutputCharacterA(FStdHandle.Output, ' ', FScreenSize, FScreenTopLeft, NumberOfCharsWritten);
SetConsoleCursorPosition(FStdHandle.Output, FScreenTopLeft);
end;
//------------------------------------------------------------------------------
function TConsole.GetBufferInfo(): TConsoleScreenBufferInfo;
begin
if not GetConsoleScreenBufferInfo(FStdHandle.Output, Result) then
ZeroMemory(@Result, SizeOf(Result));
end;
//------------------------------------------------------------------------------
function TConsole.GetCursorPosition(): TCoord;
begin
Lock();
try
Result := GetBufferInfo().dwCursorPosition;
finally
UnLock();
end;
end;
//------------------------------------------------------------------------------
function TConsole.SetCursorPosition(ACursorPosition: TCoord): TCoord;
begin
Lock();
try
Result := GetBufferInfo().dwCursorPosition;
SetConsoleCursorPosition(FStdHandle.Output, ACursorPosition);
finally
UnLock();
end;
end;
//------------------------------------------------------------------------------
function TConsole.ReadInput(AOptions: TSysCharSet; const AText: string = ''): AnsiChar;
var
InputRecord: TInputRecord;
lpNumberOfEventsRead: DWORD;
C: AnsiChar;
CaseFoldedOptions: TSysCharSet;
begin
if AText <> '' then
WriteLn(AText);
CaseFoldedOptions := AOptions;
for C in CaseFoldedOptions do
begin
if C in ['a'..'z'] then
Include(CaseFoldedOptions, UpCase(C))
else if C in ['A'..'Z'] then
Include(CaseFoldedOptions, AnsiChar(Ord(C) - Ord('A') + Ord('a')));
end;
repeat
ReadConsoleInput(FStdHandle.Input, InputRecord, 1, lpNumberOfEventsRead);
C := InputRecord.Event.KeyEvent.AsciiChar;
until (InputRecord.EventType = KEY_EVENT) and not InputRecord.Event.KeyEvent.bKeyDown and (C in CaseFoldedOptions);
if InputRecord.EventType = KEY_EVENT then
Result := UpCase(C)
else
Result := #0;
end;
//------------------------------------------------------------------------------
function TConsole.GetTitle(): string;
begin
SetLength(Result, MAX_PATH);
SetLength(Result, GetConsoleTitle(PChar(Result), MAX_PATH));
end;
procedure TConsole.SetTitle(const Value: string);
begin
SetConsoleTitle(PChar(Value));
end;
{ TColoredConsole }
//------------------------------------------------------------------------------
constructor TColoredConsole.Create();
var
S: TStatus;
begin
inherited Create();
FStepCoords := TCoordByID.Create();
FStatusLengthMin := Length('100 %');
for S := Low(DEFAULT_STATUS) to High(DEFAULT_STATUS) do
SetStatus(S, DEFAULT_STATUS[S]);
FStatusColors := DEFAULT_STATUS_COLORS;
end;
//------------------------------------------------------------------------------
destructor TColoredConsole.Destroy();
begin
FStepCoords.Free();
inherited Destroy();
end;
//------------------------------------------------------------------------------
procedure TColoredConsole.Clear();
var
Attributes: Word;
NumberOfCharsWritten: DWORD;
begin
inherited Clear();
Attributes := Word(Ord(TTextColor.tcDefault)) or Word(Ord(TBackgroundColor.bcDefault));
FillConsoleOutputAttribute(StdHandleOutput, Attributes, FScreenSize, FScreenTopLeft, NumberOfCharsWritten);
end;
//------------------------------------------------------------------------------
function TColoredConsole.ReadInput(AOptions: TSysCharSet; const AText: string = ''; ATextColor: TTextColor = tcDefault; ABackgroundColor: TBackgroundColor = bcDefault): AnsiChar;
begin
if AText <> '' then
WriteLn(AText, ATextColor, ABackgroundColor);
Result := inherited ReadInput(AOptions, '');
end;
//------------------------------------------------------------------------------
procedure TColoredConsole.Write(const AText: string = ''; ATextColor: TTextColor = tcDefault; ABackgroundColor: TBackgroundColor = bcDefault);
var
Attributes: Word;
begin
Attributes := Word(Ord(ATextColor)) or Word(Ord(ABackgroundColor));
Lock();
try
SetConsoleTextAttribute(StdHandleOutput, Attributes);
System.Write(AText);
finally
UnLock();
end;
end;
//------------------------------------------------------------------------------
procedure TColoredConsole.WriteLn(const AText: string = ''; ATextColor: TTextColor = tcDefault; ABackgroundColor: TBackgroundColor = bcDefault);
begin
WriteLn(AText.Split([#13#10, #13]), ATextColor, ABackgroundColor);
end;
//------------------------------------------------------------------------------
procedure TColoredConsole.WriteLn(const ATexts: TArray<string>; ATextColor: TTextColor = tcDefault; ABackgroundColor: TBackgroundColor = bcDefault);
var
Attributes: Word;
Line: string;
CP, CPNew: TCoord;
DeltaY: Integer;
begin
Attributes := Word(Ord(ATextColor)) or Word(Ord(ABackgroundColor));
DeltaY := 0;
Lock();
try
SetConsoleTextAttribute(StdHandleOutput, Attributes);
for Line in ATexts do
begin
CP := GetCursorPosition();
System.WriteLn(Line);
CPNew := GetCursorPosition();
if CP.Y = CPNew.Y then
Inc(DeltaY);
end;
finally
UnLock();
end;
if DeltaY > 0 then
FStepCoords.ApplyDelta(DeltaY);
end;
//------------------------------------------------------------------------------
procedure TColoredConsole.WriteSeparator(ATextColor: TTextColor = tcWhite; ABackgroundColor: TBackgroundColor = bcDefault; AChar: Char = '-');
begin
if GetCursorPosition().X > 0 then
System.WriteLn;
WriteLn(StringOfChar(AChar, FLineLength), ATextColor, ABackgroundColor);
end;
//------------------------------------------------------------------------------
procedure TColoredConsole.WriteTitle(const AText: string; ATextColor: TTextColor = tcWhite; ABackgroundColor: TBackgroundColor = bcDefault; AChar: Char = '-');
begin
WriteLn(['', AText, StringOfChar(aChar, aText.Length)], ATextColor, ABackgroundColor);
end;
//------------------------------------------------------------------------------
function TColoredConsole.WriteTaskStart(const AText: string; ATextColor: TTextColor = tcDefault; ABackgroundColor: TBackgroundColor = bcDefault): TTaskID;
var
CP, CPBk: TCoord;
Filler: string;
Scrolling: Integer;
begin
Result := TInterlocked.Increment(FCounter);
Lock();
try
CP := GetCursorPosition();
Filler := StringOfChar('.', LineLength - CP.X - FStatusLengthMax - AText.Length - 2);
CP.X := LineLength - FStatusLengthMax - 1;
FStepCoords.Add(Result, CP);
WriteLn(Format('%s%s[%*.s]', [AText, Filler, FStatusLengthMax - FStatusLength[sPending], FStatus[sPending]]), ATextColor, ABackgroundColor);
CPBk := SetCursorPosition(FStepCoords[Result]);
Write(FStatus[sPending] + StringOfChar(' ', FStatusLengthMax - FStatusLength[sPending]), FStatusColors[sPending], ABackgroundColor);
SetCursorPosition(CPBk);
finally
UnLock();
end;
end;
//------------------------------------------------------------------------------
procedure TColoredConsole.WriteTaskStep(ATaskID: TTaskID; AStatus: TStatus; ABackgroundColor: TBackgroundColor = bcDefault);
var
CP: TCoord;
begin
if not FStepCoords.ContainsTask(ATaskID) then
Exit;
CP := FStepCoords.ExtractTask(ATaskID);
if CP.Y >= 0 then
begin
Lock();
try
CP := SetCursorPosition(CP);
Write(FStatus[AStatus] + StringOfChar(' ', FStatusLengthMax - FStatusLength[AStatus]), FStatusColors[AStatus], ABackgroundColor);
SetCursorPosition(CP);
finally
UnLock();
end;
end;
end;
//------------------------------------------------------------------------------
procedure TColoredConsole.WriteTaskStep(ATaskID: TTaskID; APourcent: Integer; ABackgroundColor: TBackgroundColor = bcDefault);
var
CP: TCoord;
begin
if FStepCoords.TryGetCoord(ATaskID, CP) and (CP.Y >= 0) then
begin
Lock();
try
CP := SetCursorPosition(CP);
Write(Format('%3.d %%', [APourcent]) + StringOfChar(' ', FStatusLengthMax - FStatusLengthMin - Trunc(Log10(APourcent))), FStatusColors[sPending], ABackgroundColor);
SetCursorPosition(CP);
finally
UnLock();
end;
end;
end;
//------------------------------------------------------------------------------
function TColoredConsole.GetStatus(Index: TStatus): string;
begin
Result := FStatus[Index];
end;
//------------------------------------------------------------------------------
procedure TColoredConsole.SetStatus(Index: TStatus; const Value: string);
begin
FStatus[Index] := Value;
FStatusLength[Index] := Length(Value);
FStatusLengthMax := Max(FStatusLengthMin, Max(FStatusLengthMax, FStatusLength[Index]));
end;
//------------------------------------------------------------------------------
class function TColoredConsole.IfThen(AValue: Boolean; ATrue: TColoredConsole.TTextColor; AFalse: TColoredConsole.TTextColor): TColoredConsole.TTextColor;
begin
if AValue then
Result := ATrue
else
Result := AFalse;
end;
{ TColoredConsole.TCoordByID }
//------------------------------------------------------------------------------
constructor TColoredConsole.TCoordByID.Create();
begin
inherited Create();
FLock := TCriticalSection.Create();
end;
//------------------------------------------------------------------------------
destructor TColoredConsole.TCoordByID.Destroy();
begin
FreeAndNil(FLock);
inherited Destroy();
end;
//------------------------------------------------------------------------------
procedure TColoredConsole.TCoordByID.Add(ATaskID: TTaskID; const ACoord: TCoord);
begin
FLock.Acquire();
try
inherited Add(ATaskID, ACoord);
finally
FLock.Release();
end;
end;
//------------------------------------------------------------------------------
function TColoredConsole.TCoordByID.ContainsTask(ATaskID: TTaskID): Boolean;
begin
FLock.Acquire();
try
Result := ContainsKey(ATaskID);
finally
FLock.Release();
end;
end;
//------------------------------------------------------------------------------
function TColoredConsole.TCoordByID.ExtractTask(ATaskID: TTaskID): TCoord;
begin
FLock.Acquire();
try
Result := ExtractPair(ATaskID).Value;
finally
FLock.Release();
end;
end;
//------------------------------------------------------------------------------
function TColoredConsole.TCoordByID.TryGetCoord(ATaskID: TTaskID; out ACoord: TCoord): Boolean;
begin
FLock.Acquire();
try
Result := TryGetValue(ATaskID, ACoord);
finally
FLock.Release();
end;
end;
//------------------------------------------------------------------------------
procedure TColoredConsole.TCoordByID.ApplyDelta(ADelta: Integer);
var
It: TPair<TTaskID, TCoord>;
CP: TCoord;
begin
FLock.Acquire();
try
for It in Self do
begin
CP := It.Value;
Dec(CP.Y, ADelta);
Self.AddOrSetValue(It.Key, CP);
end;
finally
FLock.Release();
end;
end;
end. |
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