bscolorctrls.pas

Delphi开发的图象处理软件

        FillRect(Rct);
        InflateRect(Rct, 1, 1);
        if FColorValue = ColorValues[k]
        then
          begin
            if ColorValues[k] <> clGray
            then
              DrawCursor(Cnvs, Rct, True)
            else
              DrawCursor(Cnvs, Rct, False);
          end
      end;
      Inc(X, CW + 2);
    end;
    Inc(Y, CH + 2);
  end;
end;

procedure TbsSkinColorGrid.CreateControlDefaultImage;
begin
  inherited;
  PaintGrid(B.Canvas);
end;

procedure TbsSkinColorGrid.CreateControlSkinImage;
begin
  inherited;
  PaintGrid(B.Canvas);
end;

function TbsSkinColorGrid.CheckColor(Value: TColor): boolean;
var
  I: Integer;
begin
  Result := False;
  for I := 1 to 48 do
    if ColorValues[I] = Value
    then
      begin
        Result := True;
        Break;
      end;
end;

procedure TbsSkinColorGrid.SetColorValue(Value: TColor);
begin
  FColorValue := Value;
  if CheckColor(FColorValue)
  then
    begin
      if Assigned(FOnChange) then FOnChange(Self);
      RePaint;
    end;
end;

procedure TbsSkinColorGrid.MouseDown(Button: TMouseButton; Shift: TShiftState;
                                     X, Y: Integer);
var
  X1, Y1, CW, CH, i, j, k: Integer;
  R, Rct: TRect;
begin
  inherited;
  R := Rect(0, 0, Width, Height);
  AdjustClientRect(R);
  CW := (RectWidth(R) - ColCount * 2) div ColCount;
  CH := (RectHeight(R) - RowCount * 2) div RowCount;
  Y1 := R.Top + 1;
  k := 0;
  for i := 1 to RowCount do
  begin
    X1 := R.Left + 1;
    for j := 1 to ColCount do
    begin
      Inc(k);
      Rct := Rect(X1, Y1, X1 + CW, Y1 + CH);
      if PtInRect(Rct, Point(X, Y))
      then
        begin
          ColorValue := ColorValues[k];
          Break;
        end;
      Inc(X1, CW + 2);
    end;
    Inc(Y1, CH + 2);
  end;  
end;


constructor TbsColorViewer.Create(AOwner: TComponent);
begin
  inherited;
  ControlStyle := ControlStyle + [csOpaque];
  FColorValue := 0;
end;

procedure TbsColorViewer.Paint;
var
  B: TBitMap;
begin
  B := TBitMap.Create;
  B.Width := Width;
  B.Height := Height;
  with B.Canvas do
  begin
    Pen.Color := clBlack;
    Brush.Color := FColorValue;
    Rectangle(0, 0, Width, Height);
  end;
  Canvas.Draw(0, 0, B);
  B.Free;
end;

procedure TbsColorViewer.SetColorValue;
begin
  if FColorValue = Value then Exit;
  FColorValue := Value;
  RePaint;
end;

function TPSPColor.RGBToHSL(Value: TRGB): THSL;
var
  R,
  G,
  B,
  D,
  Cmax,
  Cmin: double;

begin
  R := Value.R / 255;
  G := Value.G / 255;
  B := Value.B / 255;
  Cmax := Max (R, Max (G, B));
  Cmin := Min (R, Min (G, B));

// calculate luminosity
  Result.L := (Cmax + Cmin) / 2;

  if Cmax = Cmin then
  begin
    Result.H := 0; 
    Result.S := 0
  end else begin
    D := Cmax - Cmin;

// calculate Saturation
    if Result.L < 0.5 then
      Result.S := D / (Cmax + Cmin)
    else
      Result.S := D / (2 - Cmax - Cmin);

// calculate Hue
    if R = Cmax then
      Result.H := (G - B) / D
    else
      if G = Cmax then
        Result.H  := 2 + (B - R) /D
      else
        Result.H := 4 + (R - G) / D;

    Result.H := Result.H / 6;
    if Result.H < 0 then
      Result.H := Result.H + 1
  end
end;

function TPSPColor.HSLToRGB(Value: THSL): TRGB;
var
  M1,
  M2: double;

  function HueToColourValue (Hue: double) : byte;
  var
    V : double;
  begin
    if Hue < 0 then
      Hue := Hue + 1
    else
      if Hue > 1 then
        Hue := Hue - 1;

    if 6 * Hue < 1 then
      V := M1 + (M2 - M1) * Hue * 6
    else
    if 2 * Hue < 1 then
      V := M2
    else
    if 3 * Hue < 2 then
      V := M1 + (M2 - M1) * (2/3 - Hue) * 6
    else
      V := M1;
    Result := round (255 * V)
  end;

begin
  if Value.S = 0 then
  begin
    Result.R := round (255 * Value.L);
    Result.G := Result.R;
    Result.B := Result.R
  end else begin
    if Value.L <= 0.5 then
      M2 := Value.L * (1 + Value.S)
    else
      M2 := Value.L + Value.S - Value.L * Value.S;
    M1 := 2 * Value.L - M2;
    Result.R := HueToColourValue (Value.H + 1/3);
    Result.G := HueToColourValue (Value.H);
    Result.B := HueToColourValue (Value.H - 1/3)
  end;
end;

function TPSPColor.HSLToHSLPSP: THSLPSP;
begin
  Result.H := round(FHSL.H*255);
  Result.S := round(FHSL.S*255);
  Result.L := round(FHSL.L*255);
end;

function TPSPColor.HSLPSPToHSL: THSL;
begin
  Result.H := FHSLPSP.H/255;
  Result.S := FHSLPSP.S/255;
  Result.L := FHSLPSP.L/255;
end;

constructor TPSPColor.Create;
begin
  inherited;
end;

destructor TPSPColor.Destroy;
begin

  inherited;
end;

procedure TPSPColor.SetRGB(const Value: TRGB);
begin
  FRGB := Value;
  FHSL := RGBToHSL(FRGB);
  FHSLPSP := HSLToHSLPSP();
end;

procedure TPSPColor.SeTHSL(const Value: THSL);
begin
  FHSL := Value;
  FRGB := HSLToRGB(FHSL);
  FHSLPSP := HSLToHSLPSP;
end;

procedure TPSPColor.SeTHSLPSP(const Value: THSLPSP);
begin
  FHSLPSP := Value;
  FHSL := HSLPSPToHSL;
  FRGB := HSLToRGB(FHSL);
end;

procedure TPSPColor.Assign(const Value: TPSPColor);
begin
  FRGB := Value.FRGB;
  FHSL := Value.FHSL;
  FHSLPSP := Value.FHSLPSP;
end;

constructor TbsSkinColorDialog.Create;
var
  I: Integer;
begin
  inherited Create(AOwner);

  RGBStopCheck := False;
  HSLStopCheck := False;
  FromPSP := False;

  FColor := 0;
  PSPColor := TPSPColor.Create;

  FAlphaBlend := False;
  FAlphaBlendAnimation := False;
  FAlphaBlendValue := 200;

  FCaption := 'Set color';

  FButtonSkinDataName := 'button';
  FLabelSkinDataName := 'stdlabel';
  FEditSkinDataName := 'edit';

  FDefaultLabelFont := TFont.Create;
  FDefaultButtonFont := TFont.Create;
  FDefaultEditFont := TFont.Create;

  FUseSkinFont := True;

  with FDefaultLabelFont do
  begin
    Name := 'Arial';
    Style := [];
    Height := 14;
  end;

  with FDefaultButtonFont do
  begin
    Name := 'Arial';
    Style := [];
    Height := 14;
  end;

  with FDefaultEditFont do
  begin
    Name := 'Arial';
    Style := [];
    Height := 14;
  end;

  for I := 1 to 12 do CustomColorValues[I] := clWhite;
  CustomColorValuesCount := 0;
end;

destructor TbsSkinColorDialog.Destroy;
begin
  PSPColor.Free;
  FDefaultLabelFont.Free;
  FDefaultButtonFont.Free;
  FDefaultEditFont.Free;
  inherited;
end;

procedure TbsSkinColorDialog.ChangeEdits;
var
  R, G, B: Byte;
begin
  FromPSP := True;
  R := PSPColor.FRGB.R;
  G := PSPColor.FRGB.G;
  B := PSPColor.FRGB.B;
  REdit.Value := R;
  GEdit.Value := G;
  BEdit.Value := B;
  FromPSP := False;
end;

procedure TbsSkinColorDialog.HSLEditChange(Sender: TObject);
var
  R, G, B: Byte;
  RGB: TRGB;
begin
  if HSLStopCheck then Exit;
  HSLTORGB(R, G, B, HEdit.Value, SEdit.Value, LEdit.Value);
  ColorViewer.ColorValue := R_G_BToColor(R, G, B);
  RGBStopCheck := True;
  //
  REdit.Value := R;
  GEdit.Value := G;
  BEdit.Value := B;
  //
  if not FromPSP
  then
    begin
      DrawCursor;
      RGB.R := R;
      RGB.G := G;
      RGB.B := B;
      PSPColor.SetRGB(RGB);
      DrawPSPPalette;
    end;  
  //
  RGBStopCheck := False;
end;

procedure TbsSkinColorDialog.AddCustomColorButtonClick(Sender: TObject);
begin
  CustomColorGrid.AddColor(ColorViewer.ColorValue);
end;

procedure TbsSkinColorDialog.RGBEditChange(Sender: TObject);
var
  R, G, B: Byte;
  H, S, L: Integer;
  RGB: TRGB;
begin
  if RGBStopCheck then Exit;
  ColorViewer.ColorValue := R_G_BToColor(REdit.Value, GEdit.Value, BEdit.Value);
  ColorToR_G_B(ColorViewer.ColorValue, R, G, B);
  HSLStopCheck := True;
  RGBToHSL(R, G, B, H, S, L);
  HEdit.Value := H;
  SEdit.Value := S;
  LEdit.Value := L;
  //
  if not FromPSP
  then
    begin
      DrawCursor;
      RGB.R := R;
      RGB.G := G;
      RGB.B := B;
      PSPColor.SetRGB(RGB);
      DrawPSPPalette;
    end;  
  //
  HSLStopCheck := False;
end;

procedure TbsSkinColorDialog.CustomColorGridChange(Sender: TObject);
var
  R, G, B: Byte;
  H, S, L: Integer;
  RGB: TRGB;
begin
  ColorToR_G_B(CustomColorGrid.ColorValue, R, G, B);
  RGBStopCheck := True;
  REdit.Value := R;
  GEdit.Value := G;
  BEdit.Value := B;
  RGBStopCheck := False;
  ColorViewer.ColorValue := CustomColorGrid.ColorValue;
  RGBToHSL(R, G, B, H, S, L);
  HSLStopCheck := True;
  HEdit.Value := H;
  SEdit.Value := S;
  LEdit.Value := L;
  if not FromPSP
  then
    begin
      DrawCursor;
      RGB.R := R;
      RGB.G := G;
      RGB.B := B;
      PSPColor.SetRGB(RGB);
      DrawPSPPalette;
    end;  
  HSLStopCheck := False;
end;

procedure TbsSkinColorDialog.ColorGridChange(Sender: TObject);
var
  R, G, B: Byte;
  H, S, L: Integer;
  RGB: TRGB;
begin
  ColorToR_G_B(ColorGrid.ColorValue, R, G, B);
  RGBStopCheck := True;
  REdit.Value := R;
  GEdit.Value := G;
  BEdit.Value := B;
  RGBStopCheck := False;
  ColorViewer.ColorValue := ColorGrid.ColorValue;
  RGBToHSL(R, G, B, H, S, L);
  HSLStopCheck := True;
  HEdit.Value := H;
  SEdit.Value := S;
  LEdit.Value := L;
  if not FromPSP
  then
    begin
      DrawCursor;
      RGB.R := R;
      RGB.G := G;
      RGB.B := B;
      PSPColor.SetRGB(RGB);
      DrawPSPPalette;
    end;  
  HSLStopCheck := False;
end;

procedure TbsSkinColorDialog.SetDefaultLabelFont;
begin
  FDefaultLabelFont.Assign(Value);
end;

procedure TbsSkinColorDialog.SetDefaultEditFont;
begin
  FDefaultEditFont.Assign(Value);
end;

procedure TbsSkinColorDialog.SetDefaultButtonFont;
begin
  FDefaultButtonFont.Assign(Value);
end;

procedure TbsSkinColorDialog.Notification;
begin
  inherited Notification(AComponent, Operation);
  if (Operation = opRemove) and (AComponent = FSD) then FSD := nil;
  if (Operation = opRemove) and (AComponent = FCtrlFSD) then FCtrlFSD := nil;
end;

function TbsSkinColorDialog.Execute: Boolean;
var
  Form: TForm;
  BSF: TbsBusinessSkinForm;
  ButtonTop, ButtonWidth, ButtonHeight: Integer;
  R, G, B: Byte;