unit ucadIndices;

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants,
  System.Classes, Vcl.Graphics, Vcl.Buttons, System.UITypes,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, umstCadastro, Data.DB, Vcl.Grids,
  Vcl.DBGrids, Vcl.ExtCtrls, Vcl.DBCtrls, Vcl.StdCtrls, Vcl.Mask, Vcl.ComCtrls,
  System.ImageList, Vcl.ImgList, ZAbstractRODataset, ZAbstractDataset, ZDataset;

type
  THackDBNavigator = class(TDBNavigator);

type
  TcadIndices = class(TmstCadastro)
    dbgrd_indices: TDBGrid;
    ImageList1: TImageList;
    GroupBox1: TGroupBox;
    dblulb_indices: TDBLookupListBox;
    procedure FormCreate(Sender: TObject);
    procedure dtsDBStateChange(Sender: TObject);
    procedure FormKeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure dbgrd_indicesTitleClick(Column: TColumn);
  private
    procedure SetupHackedNavigator(const Navigator: TDBNavigator;
      const Glyphs: TImageList; S: string);
      procedure WMMoving(var Msg: TWMMoving); message WM_MOVING;
    { Private declarations }
  public
    { Public declarations }
  end;

var
  cadIndices: TcadIndices;

implementation

{$R *.dfm}

uses udtmSystem;

procedure TcadIndices.dbgrd_indicesTitleClick(Column: TColumn);
begin
  inherited;
  dtmSystem.OrganizaPorColuna(dbgrd_indices.DataSource.DataSet,Column);
end;

procedure TcadIndices.dtsDBStateChange(Sender: TObject);
begin
  inherited;
  dblulb_indices.Enabled := not (dtsDB.DataSet.State in [dsEdit,dsInsert]);
end;

procedure TcadIndices.FormClose(Sender: TObject; var Action: TCloseAction);
begin
  inherited;
  cadIndices := nil;
end;

procedure TcadIndices.FormCreate(Sender: TObject);
begin
  inherited;
  SetupHackedNavigator(navPrincipal, ImageList1, 's');
end;

procedure TcadIndices.FormKeyDown(Sender: TObject; var Key: Word;
  Shift: TShiftState);
begin
  inherited;
  if Key = VK_ESCAPE then
  begin
    Key := 0;
    Close;
  end;
end;

procedure TcadIndices.SetupHackedNavigator(const Navigator: TDBNavigator;
  const Glyphs: TImageList; S: string);
const
  Captions: array [TNavigateBtn] of string = ('Primeiro', 'Anterior', 'Próximo',
    'Último', 'Adicionar', 'Excluir', 'Alterar', 'Confirmar', 'Cancelar',
    'Atualizar', 'Aplicar Atualizações', 'Cancelar Atualizãções');
  (* Captions : array[TNavigateBtn] of string =
    ('First', 'Prior', 'Next', 'Last', 'Insert',
    'Delete', 'Edit', 'Post', 'Cancel', 'Refresh'); *)
  Hints: array [TNavigateBtn] of string = ('Primeiro', 'Anterior', 'Próximo',
    'Último', 'Adicionar', 'Apagar', 'Modificar', 'Confirmar', 'Cancelar',
    'Atualizar', 'Aplicar Atualizações', 'Cancelar Atualizãções');
var
  btn: TNavigateBtn;
begin
  // função propriamente dita para "hackear" o navigator
  for btn := Low(TNavigateBtn) to High(TNavigateBtn) do
    with THackDBNavigator(Navigator).Buttons[btn] do
    begin
      // from the Captions const array

      Hint := Hints[btn];

      if S = 's' then
      begin
        Caption := Captions[btn];
      end;

      // the number of images in the Glyph property
      NumGlyphs := 1;
      // Remove the old glyph.
      Glyph := nil;
      // Assign the custom one
      Glyphs.GetBitmap(Integer(btn), Glyph);
      // gylph above text
      Layout := blGlyphTop;

      Font.Style := Font.Style - [fsbold];
    end;
end;

procedure TcadIndices.WMMoving(var Msg: TWMMoving);
var
  workArea: TRect;
begin
  workArea := Screen.WorkareaRect;

  with Msg.DragRect^ do
  begin
    if left < workArea.left then
      OffsetRect(Msg.DragRect^, workArea.left - left, 0);

    if top < workArea.top then
      OffsetRect(Msg.DragRect^, 0, workArea.top - top);

    if Right > workArea.Right then
      OffsetRect(Msg.DragRect^, workArea.Right - Right, 0);

    if Bottom > workArea.Bottom then
      OffsetRect(Msg.DragRect^, 0, workArea.Bottom - Bottom);
  end;

end;

end.