unit ColEdtFrm;

{******************************************************************************}
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{                StarUML - The Open Source UML/MDA Platform.                   }
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{******************************************************************************}

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ImgList, ComCtrls, ToolWin, StdCtrls, ExtDlgs;

type
  // enumerations
  PItemTypeKind = (itFile, itImageFile);

  // TCollectionEditorForm
  TCollectionEditorForm = class(TForm)
    CollectionPageControl: TPageControl;
    CollectionTabSheet: TTabSheet;
    TagColToolBar: TToolBar;
    AddButton: TToolButton;
    DeleteButton: TToolButton;
    MoveUpButton: TToolButton;
    MoveDownButton: TToolButton;
    CollectionListView: TListView;
    ColImageList: TImageList;
    AcceptButton: TButton;
    CancelButton: TButton;
    OpenPictureDialog: TOpenPictureDialog;
    OpenDialog: TOpenDialog;
    procedure AddButtonClick(Sender: TObject);
    procedure DeleteButtonClick(Sender: TObject);
    procedure FormShow(Sender: TObject);
    procedure CollectionListViewChange(Sender: TObject; Item: TListItem;
      Change: TItemChange);
  private
    FItemType: PItemTypeKind;
    function GetTitle: string;
    procedure SetTitle(Value: string);
    function GetCollectionName: string;
    procedure SetCollectionName(Value: string);
    function GetItemCount: Integer;
    function GetItem(Index: Integer): string;
    procedure UpdateUIStates;
  public
    procedure ClearItems;
    procedure AddItem(Value: string);
    function Execute: Boolean;
    property ItemType: PItemTypeKind read FItemType write FItemType;
    property Title: string read GetTitle write SetTitle;
    property CollectionName: string read GetCollectionName write SetCollectionName;
    property ItemCount: Integer read GetItemCount;
    property Items[Index: Integer]: string read GetItem;
  end;

implementation

{$R *.dfm}

////////////////////////////////////////////////////////////////////////////////
// TCollectionEditorForm

function TCollectionEditorForm.GetTitle: string;
begin
  Result := Caption;
end;

procedure TCollectionEditorForm.SetTitle(Value: string);
begin
  Caption := Value;
end;

function TCollectionEditorForm.GetCollectionName: string;
begin
  Result := CollectionTabSheet.Caption;
end;

procedure TCollectionEditorForm.SetCollectionName(Value: string);
begin
  CollectionTabSheet.Caption := Value;
end;

function TCollectionEditorForm.GetItemCount: Integer;
begin
  Result := CollectionListView.Items.Count;
end;

function TCollectionEditorForm.GetItem(Index: Integer): string;
begin
  Result := CollectionListView.Items[Index].Caption;
end;

procedure TCollectionEditorForm.UpdateUIStates;
begin
  DeleteButton.Enabled := (CollectionListView.Selected <> nil);
end;

procedure TCollectionEditorForm.ClearItems;
begin
  CollectionListView.Items.Clear;
end;

procedure TCollectionEditorForm.AddItem(Value: string);
var
  L: TListItem;
begin
  L := CollectionListView.Items.Add;
  L.Caption := Value;
end;

function TCollectionEditorForm.Execute: Boolean;
begin
  Result := (ShowModal = mrOk);
end;

// TCollectionEditorForm
////////////////////////////////////////////////////////////////////////////////

procedure TCollectionEditorForm.AddButtonClick(Sender: TObject);
var
  L: TListItem;
  I: Integer;
begin
  case ItemType of
    itFile:
      begin
        if OpenDialog.Execute then
          for I := 0 to OpenDialog.Files.Count - 1 do begin
            L := CollectionListView.Items.Add;
            L.Caption := OpenDialog.Files[I];
          end;
      end;
    itImageFile:
      begin
        if OpenPictureDialog.Execute then
          for I := 0 to OpenPictureDialog.Files.Count - 1 do begin
            L := CollectionListView.Items.Add;
            L.Caption := OpenPictureDialog.Files[I];
          end;
      end;
  end;
end;

procedure TCollectionEditorForm.DeleteButtonClick(Sender: TObject);
begin
  CollectionListView.DeleteSelected;
end;

procedure TCollectionEditorForm.FormShow(Sender: TObject);
begin
  UpdateUIStates;
end;

procedure TCollectionEditorForm.CollectionListViewChange(Sender: TObject;
  Item: TListItem; Change: TItemChange);
begin
  UpdateUIStates;
end;

end.