d_picturepropertyeditor0.pas

delphi 运行期间窗体设计

unit d_PicturePropertyEditor0;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms,
  Dialogs, Grids, LMDDsgPropPage, LMDDsgPropInsp, ExtDlgs, StdCtrls,
  ExtCtrls, LMDDsgD5Adds;

type
  TForm1 = class(TForm)
    LMDPropertyInspector1: TLMDPropertyInspector;
    Button1: TButton;
    Image1: TImage;
    Label1: TLabel;
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

  TPicturePropEditor = class(TLMDClassPropEditor)
  protected
    function GetValue: string; override;
    function GetAttrs: TLMDPropAttrs; override;
    procedure Edit; override;
  end;

var
  Form1: TForm1;

implementation

uses d_PicturePropertyEditor1;

{$R *.dfm}

{ TPicturePropEditor }

procedure TPicturePropEditor.Edit;
begin
  Form2.Picture := TPicture(GetOrdValue(0));
  if Form2.Execute then
    SetOrdValue(Longint(Form2.Picture));
end;

function TPicturePropEditor.GetAttrs: TLMDPropAttrs;
begin
  Result := [praMultiSelect, praDialog, praReadOnly];
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  LMDPropertyInspector1.RegisterPropEditor(TypeInfo(TPicture), nil, '',
                                           TPicturePropEditor);
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  LMDPropertyInspector1.Objects.Add(Image1);
end;

function TPicturePropEditor.GetValue: string;
begin
  if TPicture(GetOrdValue(0)).Graphic = nil then
    Result := '(None)'
  else
    Result := '(Picture)';
end;

end.