Delphi 在自己的包中安装组件

Question

我已经开发了两个单元文件(.pas)并且我有 2 个不同的组件
第一个是 MyPCButton，第二个是 MyPanel

MyPCButton.pas 使用 MyPanel.pas

问题是当我尝试将它们放在单独的包中时，当我安装使用 MyPanel.pas 的 MyPCButton 组件时，该包将它们都安装在同一个包中，如果我先安装 MyPanel.pas 然后 MyPCButton 包拒绝安装并说“无法在包输出目录中为 MyPanel.bpl 创建输出文件”

我已将 MyPanel 放在接口(interface)部分，并将其放在实现部分，但我仍然遇到相同的错误，

我想做的是将它们单独安装在自己的包中

MyPCButton.pas:

unit MyPCButton;

interface

uses
 Winapi.Windows,Winapi.Messages,System.SysUtils, System.Classes, Vcl.Controls, Vcl.ExtCtrls,
 Vcl.Imaging.PngImage,Vcl.Graphics,Types,cxGraphics;


type
  TMyPCButton=class (TCustomControl)
  private
    FCaption:TCaption;
    FIcon:TPngImage;
    FIconIndex:integer;
    FIconList:TcxImageList;
    FIconWidth:integer;
    FIconLeftMargin,FIconRightMargin:integer;
    FCloseIconList:TcxImageList;
    FCloseIconWidth:integer;
    FCloseIconLeftMargin,FCloseIconRightMargin:integer;
    FFont:TFont;
    FColorDefault,FColorDefaultFont:TColor;
    FColorHover,FColorHoverFont:TColor;
    FColorActive,FColorActiveFont:TColor;
    FCaptionWidth:integer;
    FMaximumCaptionWidth:integer;
    FState:Byte;
    FCurCloseIconState:integer;
    FActive: Boolean;

    FBuffer: TBitmap;
    R3:TRect;
    FOnClick,FOnCloseClick: TNotifyEvent;
    FOnActivate,FOnDeactivate:TNotifyEvent;

    FFocused:Boolean;
    FGroupNo: integer;
    procedure SetIconIndex(const Value:Integer);
    procedure SetIconList(const Value:TcxImageList);

    procedure SetCaption(const Value: TCaption);
    procedure SetCloseIconList(const Value: TcxImageList);

    procedure SetAutoSize;

    procedure WndProc(var Message: TMessage); override;
    procedure MouseDown(Button: TMouseButton; Shift: TShiftState; X: Integer; Y: Integer); override;
    procedure MouseMove(Shift: TShiftState; X: Integer; Y: Integer); override;
    procedure SetActive(const Value: Boolean);
    procedure SwapBuffers;
    procedure CheckGroupNo;
  protected
    procedure Paint; override;
    property Canvas;
    procedure DoEnter; override;
    procedure DoExit; override;
    procedure KeyDown(Sender: TObject; var Key: Word;Shift: TShiftState);
  public
    constructor Create(AOwner: TComponent); override;
    destructor Destroy; override;
    function GetTotalWidth:integer;
    function GetLeftSpace:integer;
    function GetRightSpace:integer;
    procedure SetPositionInPanel;
    procedure SetActiveAfterClose;
  published
    property Caption:TCaption read FCaption write SetCaption;
    property IconIndex:integer Read FIconIndex write SetIconIndex;
    property IconList:TcxImageList Read FIconList write SetIconList;
    property CloseIconList:TcxImageList Read FCloseIconList write SetCloseIconList;
    property Active:Boolean read FActive write SetActive;
    property OnClick: TNotifyEvent read FOnClick write FOnClick;
    property OnCloseClick: TNotifyEvent read FOnCloseClick write FOnCloseClick;
    property OnActivate: TNotifyEvent read FOnActivate write FOnActivate;
    property OnDeActivate: TNotifyEvent read FOnDeactivate write FOnDeactivate;
    property GroupNo:integer read FGroupNo write FGroupNo;
    property TabStop;
    property Align;
end;

procedure Register;

implementation
uses Math,pvalues,pfunctions,MyPanel;

function IsIntInInterval(x, xmin, xmax: integer): boolean; inline;
begin
  IsIntInInterval := (xmin <= x) and (x <= xmax);
end;

function PointInRect(const Point: TPoint; const Rect: TRect): boolean; inline;
begin
  PointInRect := IsIntInInterval(Point.X, Rect.Left, Rect.Right) and
                 IsIntInInterval(Point.Y, Rect.Top, Rect.Bottom);
end;

procedure Register;
begin
  RegisterComponents('MyComponents', [TMyPCButton]);
end;

procedure TMyPCButton.CheckGroupNo;
var
i:integer;
begin
  for i:=0 to Parent.ControlCount-1 do
    begin
      if (Parent.Controls[i] is TMyPCButton) then
        begin
          if ((Parent.Controls[i] as TMyPCButton).Active) and
             ((Parent.Controls[i] as TMyPCButton).Name<>Self.Name) and
             ((Parent.Controls[i] as TMyPCButton).GroupNo=Self.GroupNo)
             then
              (Parent.Controls[i] as TMyPCButton).Active:=False;
        end;
    end;
end;

constructor TMyPCButton.Create(AOwner: TComponent);
begin
  inherited;
  if _V_RegValuesInitated=false then
    _P_RegValuesInitate;

  FFocused:=false;
  FBuffer := TBitmap.Create;
  Height:=30;
  Width:=50;

  FFont:=TFont.Create;
  FFont.Assign(R_BtnTB.VFont);
  FBuffer.Canvas.Font.Assign(FFont);

  FState:=0;
  FCurCloseIconState:=-1;
  FIconIndex:=-1;
  FIconWidth:=16;
  FIconLeftMargin:=5;
  FIconRightMargin:=5;

  FCloseIconWidth:=17;
  FCloseIconLeftMargin:=16;
  FCloseIconRightMargin:=6;
  FCaptionWidth:=0;
  FMaximumCaptionWidth:=160;

  OnKeyDown:=KeyDown;
end;

destructor TMyPCButton.Destroy;
begin
  inherited;
  FreeAndNil(FIcon);
  FreeAndNil(FBuffer);
end;

procedure TMyPCButton.DoEnter;
begin
  inherited;
  if FActive=false then
    FState:=1;
  FFocused:=true;
  paint;
end;

procedure TMyPCButton.DoExit;
begin
  inherited;
  if FActive=false then
    FState:=0
  else
    FState:=2;
  FFocused:=false;
  paint;
end;

function TMyPCButton.GetLeftSpace: integer;
begin
  Result:=Parent.Left;
end;

function TMyPCButton.GetRightSpace: integer;
begin
  Result:=GetTotalWidth-Parent.Width;
end;

function TMyPCButton.GetTotalWidth: integer;
begin
  Result:=Self.Left+Self.Width;
end;

procedure TMyPCButton.SetPositionInPanel;
var
TotalWidth,LeftSpace,RightSpace:integer;
begin
  if (Owner is TMyPanel) then
    begin
    if (Owner as TMyPanel).Parent is TMyPanel then
      begin
        LeftSpace:=GetLeftSpace;
        if LeftSpace<0 then
          LeftSpace:=LeftSpace*-1;
        RightSpace:=GetRightSpace;
        TotalWidth:=GetTotalWidth;
        if (TotalWidth-LeftSpace)<Self.Width then
          Parent.Left:=Parent.Left+(((TotalWidth-LeftSpace)-Self.Width)*-1)
        else
        if TotalWidth-LeftSpace>(Parent).Parent.Width then
          begin
            Parent.Left:=Parent.Left-(TotalWidth-LeftSpace-(Parent).Parent.Width);
          end;
      end;
    end;
end;

procedure TMyPCButton.SetActiveAfterClose;
var
VControlCount,VPosition:integer;
begin
  if (Parent is TMyPanel) then
    begin
      VControlCount:=Parent.ControlCount;
      if VControlCount>1 then
        begin
          for VPosition:=0 to VControlCount-1 do
            begin
              if (Parent.Controls[VPosition] as TMyPCButton).Name=Self.Name then
                break;
            end;
          if VPosition+1=Parent.ControlCount then
            (Parent.Controls[VPosition-1] as TMyPCButton).Active:=true
          else
            (Parent.Controls[VPosition+1] as TMyPCButton).Active:=true;
        end;
    end;
end;

procedure TMyPCButton.KeyDown(Sender: TObject; var Key: Word;
  Shift: TShiftState);
begin
  if FActive=false then
    SetActive(True);
  if (Key=13) and (Assigned(FOnClick)) then FOnClick(Self);
  paint;
end;

procedure TMyPCButton.MouseDown(Button: TMouseButton; Shift: TShiftState; X,
  Y: Integer);
var
SelfWidth:integer;
begin
  inherited;
  if (FActive=false) and PointInRect(point(X,Y),R3)=false then
    begin
      FState:=2;
      SetActive(True);
      paint;
    end;
  if PointInRect(point(X,Y),R3) then
    begin
      if (Assigned(FOnCloseClick)) then FOnCloseClick(Self);
      SelfWidth:=Self.Width;
      Width:=0;
      Parent.Width:=Parent.Width-SelfWidth;
      if FActive then
        SetActiveAfterClose;
      Self.Destroy;
    end
  else
    begin
      if (Assigned(FOnClick)) then FOnClick(Self);
    end;
end;

procedure TMyPCButton.MouseMove(Shift: TShiftState; X, Y: Integer);
begin
  inherited;
  if PointInRect(point(X,Y),R3)=false then
    begin
      if FState-1<>FCurCloseIconState then
        begin
          FCurCloseIconState:=FState-1;
          paint;
        end;
    end
  else
    begin
      if FState+1<>FCurCloseIconState then
        begin
          FCurCloseIconState:=FState+1;
          paint;
        end;
    end;
end;

procedure TMyPCButton.Paint;
var
R2,R4:TRect;
ColorBackground,ColorFont:TColor;
begin
  inherited;
  if FBuffer.Canvas.Font.Name<>R_BtnTB.VFont.Name then
    begin
      FBuffer.Canvas.Font.Name:=R_BtnTB.VFont.Name;
    end;
  if FBuffer.Canvas.Font.Size<>R_BtnTB.VFont.Size then
    begin
      FBuffer.Canvas.Font.Size:=R_BtnTB.VFont.Size;
    end;
  if FBuffer.Canvas.Font.Quality<>R_BtnTB.VFont.Quality then
    begin
      FBuffer.Canvas.Font.Quality:=R_BtnTB.VFont.Quality;
    end;

  FBuffer.SetSize(Width,Height);

  if FState=0 then
    begin
      ColorBackground:=R_BtnTB.DefaultColor;
      ColorFont:=R_BtnTB.DefaultFontColor
    end;
  if FState=1 then
    begin
      ColorBackground:=R_BtnTB.HoverColor;
      ColorFont:=R_BtnTB.HoverFontColor
    end;
  if FState=2 then
    begin
     ColorBackground:=R_BtnTB.ActiveColor;
     ColorFont:=R_BtnTB.ActiveFontColor
    end;

  FBuffer.Canvas.Brush.Color:=ColorBackground;
  FBuffer.Canvas.Font.Color:=ColorFont;
  FBuffer.Canvas.FillRect(ClientRect);

  if ((Assigned(FIconList)) and (FIconIndex>-1)) then
    begin
      FIconList.Draw(FBuffer.Canvas,FIconLeftMargin,(ClientHeight div 2)-(FIconList.Height div 2),FIconIndex);
    end;
  R2.Top:=(ClientHeight div 2)-(FBuffer.Canvas.TextHeight(FCaption) div 2);
  R2.Height:=ClientHeight;
  R2.Left:=FIconLeftMargin+FIconWidth+FIconRightMargin;
  R2.Width:=FCaptionWidth;
  DrawText(FBuffer.Canvas.Handle, PChar(FCaption), -1, R2,DT_LEFT);

  if Assigned(FCloseIconList) then
    begin
      R3.Top:=0;
      R3.Left:=ClientWidth-FCloseIconWidth;
      R3.Height:=ClientHeight;
      R3.Width:=FCloseIconWidth;
      FCloseIconList.Draw(FBuffer.Canvas,R3.Left+(FCloseIconList.Width div 2),(R3.Height div 2)-(FCloseIconList.Height div 2),FCurCloseIconState);
    end;

  if FFocused then
    begin
      R4.Top:=1;
      R4.Left:=1;
      R4.Width:=ClientWidth-2;
      R4.Height:=ClientHeight-2;
      DrawFocusRect(FBuffer.Canvas.Handle,R4);
    end;

  SwapBuffers;
end;

procedure TMyPCButton.SetActive(const Value: Boolean);
var
MyPoint:TPoint;
begin
  if FActive<>Value then
    begin
      FActive := Value;
      if FActive then
        begin
          CheckGroupNo;
          FState:=2;
          SetPositionInPanel;
          if Assigned(FOnActivate) then FOnActivate(Self);
        end
      else
        begin
          MyPoint := ScreenToClient(Mouse.CursorPos);
          if PtInRect(ClientRect, MyPoint) then
            FState:=1
          else
            FState:=0;
          if Assigned(FOnDeactivate) then FOnDeactivate(Self);
        end;
      paint;
    end;
end;

procedure TMyPCButton.SetAutoSize;
begin
  FCaptionWidth:=FBuffer.Canvas.TextWidth(FCaption);
  if FCaptionWidth>160 then
    FCaptionWidth:=FMaximumCaptionWidth;
  Width:=FIconLeftMargin+FIconWidth+FIconRightMargin+FCaptionWidth+FCloseIconLeftMargin+FCloseIconWidth-12+FCloseIconRightMargin;
end;

procedure TMyPCButton.SetCaption(const Value: TCaption);
begin
  inherited;
    FCaption := Value;
    SetAutoSize;
    paint;
end;

procedure TMyPCButton.SetCloseIconList(const Value: TcxImageList);
begin
   FCloseIconList := Value;
   paint;
end;

procedure TMyPCButton.SetIconIndex(const Value: Integer);
begin
  FIconIndex:=Value;
  paint;
end;

procedure TMyPCButton.SetIconList(const Value: TcxImageList);
begin
  FIconList:=Value;
  paint;
end;

procedure TMyPCButton.WndProc(var Message: TMessage);
begin
  inherited;
  case Message.Msg of
    CM_MOUSEENTER:
      begin
        if FActive=False then
          begin
            FState:=1;
            Paint;
          end;
      end;
    CM_MOUSELEAVE:
      begin
        if FActive=False then
          begin
            FState:=0;
            FCurCloseIconState:=-1;
            Paint;
          end
        else
          begin
            FState:=2;
            FCurCloseIconState:=-1;
            Paint;
          end;
      end;
    WM_ERASEBKGND:
      Message.Result := 1;
  end;
end;

procedure TMyPCButton.SwapBuffers;
begin
  BitBlt(Canvas.Handle, 0, 0, Width, Height, FBuffer.Canvas.Handle, 0, 0, SRCCOPY);
end;

end.

我的面板.pas

unit MyPanel;

interface

uses
  System.SysUtils, System.Classes, Vcl.Controls, Vcl.ExtCtrls;

type
  TMyPanel = class(TPanel)
  private
    { Private declarations }
  protected
    { Protected declarations }
  public
    { Public declarations }
    constructor Create(AOwner: TComponent); override;
    destructor Destroy; override;
  published
    { Published declarations }
  end;

procedure Register;

implementation

procedure Register;
begin
  RegisterComponents('MyComponents', [TMyPanel]);
end;

constructor TMyPanel.Create(AOwner: TComponent);
begin
  inherited;
end;

destructor TMyPanel.Destroy;
begin
  inherited;
end;

end.

Answer 1

除了您的实现和您描述安装的方式之外，您正在尝试做的事情并没有什么特别之处 pas将文件放入包中表明您可能不清楚如何去做。

首先，将组件和 IDE 注册组合在同一个包中一直被认为是不好的做法。

您应该在仅运行时包(或多个包)中实现您的组件。然后你就有了一个设计时包，它在它的中包含了相应的运行时包。需要 列表。

设计时包还包含(通常)一个单元，它使用包含您的组件的单元并实现 注册 功能。

然后将设计时包安装到 IDE 中，IDE 将根据需要加载运行时包以注册组件。

在这种整体方法中，您仍然有许多选择来组织您的包。

您可以为每个控件使用单独的运行时包，并使用单独的设计时包来分别安装每个控件，但听起来您的包之间会有很多依赖关系，这些依赖关系很快就会成为问题，无法按照您的顺序解开和创建依赖关系构建和安装你的包。

在您的情况下，由于您的两个组件相互依赖，因此将这些组件保存在一个运行时包中并使用一个设计时包来安装该运行时包中的所有组件听起来最有意义。

如果您真的想要，您仍然可以使用单独的设计时包来从该单个运行时包中单独安装每个控件，但我真的看不出在您的情况下这样做有什么好处(除非有进一步的复杂性或考虑是从您的问题中看不出来)。