Varela_PuntosVenta/Source/Cliente/uPantallaPrincipal.pas

unit uPantallaPrincipal;

interface

uses
  Windows, Forms, SysUtils, Messages, JvMenus, Menus, Graphics, AppEvnts,
  JvAppStorage, JvAppRegistryStorage, JvFormPlacement, JvComponentBase,
  JvNavigationPane, ImgList, Controls, PngImageList, Classes, ActnList, XPMan,
  TBXStatusBars, JvXPCore, JvXPContainer, pngimage, ExtCtrls, StdCtrls,
  JvPageList, JvExControls, JvExExtCtrls, JvSplitter, JvSyncSplitter,
  TBXDkPanels, uCustomEditor, uHostManager, uGUIBase;

type
  IMainForm = interface(IHostForm)
    ['{7F6F5574-5E5C-486C-AA24-D3AEAA52D243}']
    procedure ReleaseEmbedded;
  end;


  TfPantallaPrincipal = class(TForm, IHostForm, IMainForm)
    GeneralActionList: TActionList;
    ModulesSmallImageList: TPngImageList;
    XPManifest1: TXPManifest;
    actSalir: TAction;
    ModulesLargeImageList: TPngImageList;
    pnlContenido: TTBXAlignmentPanel;
    JvNavigationPane: TJvNavigationPane;
    pnlMain: TTBXAlignmentPanel;
    JvSyncSplitter1: TJvSyncSplitter;
    actLogin: TAction;
    StyleManagerButtons: TJvNavPaneStyleManager;
    JvFormStorage: TJvFormStorage;
    JvAppRegistryStorage: TJvAppRegistryStorage;
    actAdministracion: TAction;
    ApplicationEvents: TApplicationEvents;
    actCambiarPass: TAction;
    actConexion: TAction;
    actAcerca: TAction;
    pnlBorde: TJvXPContainer;
    HostMenu: TJvMainMenu;
    JvXPMenuItemPainter1: TJvXPMenuItemPainter;
    Archivo2_OLD: TMenuItem;
    Ayuda2_OLD: TMenuItem;
    Cambiarmicontrasea2_OLD: TMenuItem;
    Configurarconexin2_OLD: TMenuItem;
    Salir2_OLD: TMenuItem;
    Acercade2_OLD: TMenuItem;
    lblBienvenido: TLabel;
    Label22: TLabel;
    TBXStatusBar1: TTBXStatusBar;
    StatusBarImages: TPngImageList;
    Opciones1_OLD: TMenuItem;
    Edicin1_OLD: TMenuItem;
    N1: TMenuItem;
    actVentasMenu: TAction;
    pagInicio: TJvNavPanelPage;
    Panel1: TPanel;
    Label1: TLabel;
    Image1: TImage;
    actActualizaciones: TAction;
    actVerPanel: TAction;
    actVerBarraEstado: TAction;
    Paneldeexploracin1: TMenuItem;
    Paneldeexploracin2: TMenuItem;
    Administracin1: TMenuItem;
    N2: TMenuItem;
    Usuarios1: TMenuItem;
    Perfiles1: TMenuItem;
    procedure FormCreate(Sender: TObject);
    procedure Salir1Click(Sender: TObject);
    procedure actSalirExecute(Sender: TObject);
    procedure actCambiarPassExecute(Sender: TObject);
    procedure actAcercaExecute(Sender: TObject);
    procedure actConexionExecute(Sender: TObject);
    procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
    procedure ApplicationEventsException(Sender: TObject; E: Exception);
    procedure actVentasMenuExecute(Sender: TObject);
    procedure actActualizacionesExecute(Sender: TObject);
    procedure actVerPanelUpdate(Sender: TObject);
    procedure actVerPanelExecute(Sender: TObject);
    procedure actVerBarraEstadoUpdate(Sender: TObject);
    procedure actVerBarraEstadoExecute(Sender: TObject);
    procedure Acercade1Click(Sender: TObject);
    procedure Usuarios1Click(Sender: TObject);
    procedure Perfiles1Click(Sender: TObject);
    procedure FormShow(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
  private
    FContenido : TCustomEditor;
    procedure ShowEmbedded(AEditor : ICustomEditor);
    procedure ReleaseEmbedded;
    procedure AplicarPerfil;
    procedure RefrescarUI;
    procedure InicializarUI;
    procedure OnThemeChange(Sender: TObject);
    procedure ExecuteActionMenu(Sender : TObject);
    //procedure WMSysCommand(var Msg: TWMSysCommand); message WM_SYSCOMMAND;
  protected
    function GetWorkPanel : TWinControl;
    procedure CreateParams(var Params: TCreateParams); override;    
  public
    function IsShortcut(var Message: TWMKey): Boolean; override;
    procedure OnWorkPanelChanged(AEditor : ICustomEditor);
    constructor Create(AOwner: TComponent); override;
    property WorkPanel : TWinControl read GetWorkPanel;
  end;

var
  fPantallaPrincipal: TfPantallaPrincipal;

implementation

uses
  uSplash, uAcercaDe, UxTheme, Themes, uMenuUtils, 
  uAdminPV_App, uDMBase, 
  uModuleController, uMainMenuController, uNavPaneController,
  uDialogUtils, cxControls, uClienteUtils;

{$R *.dfm}


{
***************************** TfPantallaPrincipal ******************************
}

procedure TfPantallaPrincipal.FormClose(Sender: TObject; var Action: TCloseAction);
begin
  //Tiene que ser en este m<>todo porque salta antes que liberar la aplicaci<63>n, si lo dejamos
  //en el evento onDestroy no le da tiempo a liberar el contenido y se pone a liberar la aplicaci<63>n
  //provocando un error de memoria
  ReleaseEmbedded;
  ApplicationEvents.CancelDispatch;
end;

procedure TfPantallaPrincipal.FormCloseQuery(Sender: TObject;
  var CanClose: Boolean);
begin
  CanClose := True;
  if Assigned(FContenido) then
    CanClose := FContenido.CloseQuery;
end;

procedure TfPantallaPrincipal.FormCreate(Sender: TObject);
begin
  ApplicationEvents.Activate;
  Application.Title := AppAdminPV.AppName + ' ' + AppAdminPV.AppVersion;
  Caption := Application.Title;

  JvNavigationPane.StyleManager := dmBase.StyleManager;
  dmBase.OnThemeChange := Self.OnThemeChange;
  Self.OnThemeChange(Self); // Forzar el refresco de los colores del tema activo

  actLogin.Execute;
end;

procedure TfPantallaPrincipal.FormShow(Sender: TObject);
begin
  InicializarUI;
end;

procedure TfPantallaPrincipal.RefrescarUI;
var
  ATitulo : String;
begin
  ATitulo := AppAdminPV.AppName + ' ' + AppAdminPV.AppVersion;

  Application.Title := ATitulo;
  Caption := Application.Title;

  if dmBase.HayConexion then
    TBXStatusBar1.Panels[0].Caption := 'Conectado a: ' + dmBase.ROChannel.TargetURL
  else
    TBXStatusBar1.Panels[0].Caption := 'Desconectado';

  if Assigned(AppAdminPV.UsuarioActivo) then
    TBXStatusBar1.Panels[1].Caption := AppAdminPV.UsuarioActivo.UserName
  else
    TBXStatusBar1.Panels[1].Caption := '';

  AplicarPerfil;
end;

procedure TfPantallaPrincipal.ReleaseEmbedded;
begin
  if Assigned(FContenido) then
    FContenido.Release;
  FContenido := Nil;  
  Application.ProcessMessages;
end;

procedure TfPantallaPrincipal.Salir1Click(Sender: TObject);
begin
  Close;
end;

procedure TfPantallaPrincipal.actSalirExecute(Sender: TObject);
begin
  Close;
end;

procedure TfPantallaPrincipal.actVentasMenuExecute(Sender: TObject);
begin
  //
end;

procedure TfPantallaPrincipal.actVerBarraEstadoExecute(Sender: TObject);
begin
  TBXStatusBar1.Visible := not TBXStatusBar1.Visible;
end;

procedure TfPantallaPrincipal.actVerBarraEstadoUpdate(Sender: TObject);
begin
  (Sender as TAction).Checked := TBXStatusBar1.Visible;
end;

procedure TfPantallaPrincipal.actVerPanelExecute(Sender: TObject);
begin
  JvNavigationPane.Visible := not JvNavigationPane.Visible;
  if (JvNavigationPane.Visible) and (JvNavigationPane.Width = 0) then
    JvNavigationPane.Width := 210;
end;

procedure TfPantallaPrincipal.actVerPanelUpdate(Sender: TObject);
begin
  (Sender as TAction).Checked := JvNavigationPane.Visible and (JvNavigationPane.Width > 0);
end;

procedure TfPantallaPrincipal.OnThemeChange(Sender: TObject);
begin
  LockWindowUpdate(Handle);
  try
    Color := dmBase.StyleManager.Colors.DividerColorTo;
    //pnlBorde.Color := dmBase.StyleManager.Colors.FrameColor;
    pnlBorde.BoundColor := dmBase.StyleManager.Colors.FrameColor;
    with StyleManagerButtons do
    begin
      Colors.ButtonColorFrom := clWindow;
      Colors.ButtonColorTo := clWindow;
      Colors.ButtonSeparatorColor := clWindow;
      Colors.SplitterColorFrom := clWindow;
      Colors.SplitterColorTo := clWindow;
      Colors.DividerColorFrom := clWindow;
      Colors.DividerColorTo := clWindow;
      Colors.HeaderColorFrom := clWindow;
      Colors.HeaderColorTo := clWindow;
      Colors.FrameColor := clWindow;
      Colors.ToolPanelHeaderColorFrom := clWindow;
      Colors.ToolPanelHeaderColorTo := clWindow;

      Colors.ButtonHotColorFrom := dmBase.StyleManager.Colors.ButtonHotColorFrom;
      Colors.ButtonHotColorTo := dmBase.StyleManager.Colors.ButtonHotColorTo;

      Colors.ButtonSelectedColorFrom := dmBase.StyleManager.Colors.ButtonSelectedColorFrom;
      Colors.ButtonSelectedColorTo := dmBase.StyleManager.Colors.ButtonSelectedColorTo;
    end;
    lblBienvenido.Font.Color := JvNavigationPane.Colors.ButtonColorTo;
{    JvGradient1.StartColor := JvNavigationPane.Colors.ButtonColorFrom;
    JvGradient1.EndColor := JvNavigationPane.Colors.ButtonColorTo;}
  finally
    LockWindowUpdate(0);
    Refresh;
  end;
end;

function TfPantallaPrincipal.GetWorkPanel: TWinControl;
begin
  Result := pnlMain;
end;

procedure TfPantallaPrincipal.InicializarUI;
var
  i : Integer;
begin
  for i := 0 to AppAdminPV.ModuleManager.ModulesCount - 1 do
    MainMenuController.RegisterModule(AppAdminPV.ModuleManager.Modules[i]);

  MainMenuController.SortMenuByTag;
  MainMenuController.InitMainMenu;

  for i := 0 to AppAdminPV.ModuleManager.ModulesCount - 1 do
    NavPaneController.RegisterModule(AppAdminPV.ModuleManager.Modules[i]);

  NavPaneController.InitNavPane;

  // Oculto la p<>gina de inicio para que no parezca
  // que se pueden manejar varias empresas.
  JvNavigationPane.ActivePageIndex := 1;
  pagInicio.PageList := NIL;
  pagInicio.Visible := False;

  RefrescarUI;
end;


procedure TfPantallaPrincipal.ExecuteActionMenu(Sender: TObject);
var
  i : integer;
begin
  for i := 0 to JvNavigationPane.PageCount - 1 do
  begin
    if JvNavigationPane.NavPages[i].Caption = (Sender as TAction).Caption then
    begin
      JvNavigationPane.ActivePageIndex := i;
      Break;
    end;
  end;
end;

procedure TfPantallaPrincipal.AplicarPerfil;
var
  AMenuItem : TMenuItem;
  ASeccionCount : Integer;
  AItemIndex : Integer;
  ACaption : String;
begin
  // Si el usuario es administrador puede acceder a la parte de administraci<63>n.
  if not AppAdminPV.UsuariosController.EsAdministrador(AppAdminPV.UsuarioActivo) then
  begin
    Administracin1.Enabled := False;
    Administracin1.Visible := False;
  end;

  // Guardar la lista de secciones (Ventas, Compras, etc...)
  for ASeccionCount := 0 to Menu.Items.Count - 1 do
  begin
    AMenuItem := Menu.Items[ASeccionCount];

    if not EsUnModulo(AMenuItem) then
      Continue;

    for AItemIndex := 0 to (AMenuItem.Count - 1) do
    begin
      if ((not AMenuItem[AItemIndex].IsLine)  // que no sea una l<>nea separadora
           and (AMenuItem[AItemIndex].Count = 0)) // y que no sea el padre de un submen<65>
      then
        if Assigned(AMenuItem[AItemIndex].Action) then
          with AppAdminPV.UsuariosController do
          begin
            ACaption := TAction(AMenuItem[AItemIndex].Action).Caption;
            ACaption := StringReplace(ACaption, '&', '', []);
            TAction(AMenuItem[AItemIndex].Action).Enabled := HayAccesoPermitido(ACaption);
          end;
    end;
  end;
end;

procedure TfPantallaPrincipal.ApplicationEventsException(Sender: TObject;
  E: Exception);
begin
{  if E is EROSessionNotFound then
  begin
  // OJOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
    if not dmUsuarios.Login then
      ShowMessage(E.Message);
  end
  else}
    Application.ShowException(E);
    //ShowErrorMessage('Se ha producido un error', '', E);
end;

procedure TfPantallaPrincipal.OnWorkPanelChanged(AEditor: ICustomEditor);
begin
  //
end;

procedure TfPantallaPrincipal.Perfiles1Click(Sender: TObject);
begin
  AppAdminPV.UsuariosController.VerPerfiles;
end;

procedure TfPantallaPrincipal.ShowEmbedded(AEditor: ICustomEditor);
begin
  if Assigned(FContenido) and not FContenido.CloseQuery then
  begin
    AEditor.Release;
    AEditor := NIL;
    Exit;
  end;

  ShowHourglassCursor;
  LockWindowUpdate(Handle);
  ReleaseEmbedded;
  try
    FContenido := TCustomEditor(AEditor.GetInstance);
    with (FContenido) do
    begin
      Visible := False;
      BorderIcons := [];
      BorderStyle := bsNone;
      Parent := WorkPanel;
      FContenido.Show;
      Align := alClient;
      FContenido.SetFocus;
    end;
  finally
    Application.ProcessMessages;
    LockWindowUpdate(0);
    HideHourglassCursor;
  end;
  OnWorkPanelChanged(FContenido);
end;

procedure TfPantallaPrincipal.Usuarios1Click(Sender: TObject);
begin
  AppAdminPV.UsuariosController.VerUsuarios;
end;

{procedure TfPantallaPrincipal.WMSysCommand(var Msg: TWMSysCommand); message WM_SYSCOMMAND;
begin
  // Sirve para recuperar el foco el formulario principal cuando
  // tenemos varios formularios hijos abiertos a la vez.
  case (Msg.cmdtype and $FFF0) of
    SC_MINIMIZE:  begin
                    ShowWindow(handle, SW_MINIMIZE);
                    Msg.result := 0;
                  end;
    SC_RESTORE:   begin
                    ShowWindow(handle, SW_RESTORE);
                    Msg.result := 0;
                  end;
    else
      DefaultHandler(Msg);
  end;
end;}

constructor TfPantallaPrincipal.Create(AOwner: TComponent);
begin
  inherited;
  FContenido := NIL;

  with AppAdminPV.ModuleManager do
  begin
    MainMenu := Self.Menu;
    MainForm := Self;
  end;

  with NavPaneController do
  begin
    SmallImages := ModulesSmallImageList;
    LargeImages := ModulesLargeImageList;
    NavigationPane := JvNavigationPane;
    MainForm := Self;
  end;

  with MainMenuController do
  begin
    SmallImages := ModulesSmallImageList;
    LargeImages := ModulesLargeImageList;
    MainMenu := HostMenu;
    MainForm := Self;
  end;
end;

procedure TfPantallaPrincipal.CreateParams(var Params: TCreateParams);
begin
  { <20><><EFBFBD>No quitar este procedimiento aunque no haga nada!!!!!
    Si se quita, esta pantalla principal se queda en el fondo
    despu<70>s de desaparecer la pantalla de login. }
  inherited CreateParams(Params);
end;

procedure TfPantallaPrincipal.actActualizacionesExecute(Sender: TObject);
begin
{  fActualizacion := TfActualizacion.Create(Self);
  try
    fActualizacion.ShowModal;
  finally
    FreeAndNil(fActualizacion);
  end;}
end;

procedure TfPantallaPrincipal.actCambiarPassExecute(Sender: TObject);
begin
  AppAdminPV.UsuariosController._ShowChangePassword;
  RefrescarUI;
end;

procedure TfPantallaPrincipal.Acercade1Click(Sender: TObject);
begin
  AppAdminPV.UsuariosController.StartLogin;
end;

procedure TfPantallaPrincipal.actAcercaExecute(Sender: TObject);
begin
  with TfAcercaDe.Create(NIL) do
    try
      ShowModal;
    finally
      Free;
    end;
end;

function TfPantallaPrincipal.IsShortcut(var Message: TWMKey): Boolean;
Var
   ctrl: TWinControl;
   comp: TComponent;
   i: Integer;
 Begin
   ctrl := ActiveControl;
   If ctrl <> Nil Then Begin
     Repeat
       ctrl := ctrl.Parent
     Until (ctrl = nil) or (ctrl Is TCustomForm);
     // Note: replace TCustomFrame with TForm, check if the found form is
     // self, if not, execute the following block of code.
     If ctrl <> nil Then Begin
       For i:= 0 To ctrl.componentcount-1 Do Begin
         comp:= ctrl.Components[i];
         If comp Is TCustomActionList Then Begin
           result := TCustomActionList(comp).IsShortcut( message );
           If result Then
             Exit;
         End;
       End;
     End;
   End;
   //Result := inherited IsShortCut(Message);
end;

procedure TfPantallaPrincipal.actConexionExecute(Sender: TObject);
begin
  dmBase.ConfigurarConexion;
  RefrescarUI;  
end;


end.