unit uEWWizard;

{----------------------------------------------------------------------------}
{ RemObjects' Hydra - IDE Library                                            }
{                                                                            }
{ compiler: Delphi 6 and up, Kylix 3 and up                                  }
{ platform: Win32, Linux                                                     }
{                                                                            }
{ (c)opyright RemObjects Software. all rights reserved.                      }
{                                                                            }
{ Using this code requires a valid license of Hydra                          }
{ which can be obtained at http://www.remobjects.com.                        }
{----------------------------------------------------------------------------}

{$I Everwood.inc}

interface

uses
  {$IFDEF FPC}LCLIntf, LResources,{$ENDIF}
  SysUtils, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, Buttons, ExtCtrls, ComCtrls;

type
  TEWWizardForm = class(TForm)
    Panel1: TPanel;
    Image1: TImage;
    Label1: TLabel;
    Label2: TLabel;
    Bevel1: TBevel;
    pc_Pages: TPageControl;
    ts_Welcome: TTabSheet;
    ts_Finish: TTabSheet;
    Panel2: TPanel;
    btn_Finish: TBitBtn;
    btn_Cancel: TBitBtn;
    Label3: TLabel;
    Label4: TLabel;
    btn_Next: TBitBtn;
    btn_Back: TBitBtn;
    Label5: TLabel;
    Label6: TLabel;
    lv_Options: TListView;
    procedure btn_NextClick(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure btn_BackClick(Sender: TObject);
    procedure FormDestroy(Sender: TObject);
  private
    fInEnterPage: boolean;
    fActiveControl: TWinControl;
    fValues: TStrings;
    fNextPage: integer;
    fPreviousPage: integer;
    function GetActiveControl: TWinControl;
    procedure SetActiveControl(const Value: TWinControl);
    function GetNextPage: integer;
    function GetPreviousPage: integer;
  protected
    procedure OnEnterPage(aPage:TTabSheet; aMovingForward:boolean); virtual;
    procedure OnLeavePage(aPage:TTabSheet; aMovingForward:boolean); virtual;
    procedure AfterEnterPage(aPage:TTabSheet; aMovingForward:boolean); virtual;

    function CleanPascalString(const aString: string): string;
  public
    property Values:TStrings read fValues;
    function Execute:boolean; overload;
    class function Execute(aOwner: TComponent): boolean; overload;
    property ActiveControl: TWinControl read GetActiveControl write SetActiveControl;
    property NextPage: integer read GetNextPage write fNextPage;
    property PreviousPage: integer read GetPreviousPage write fPreviousPage;
  end;

implementation

// uses  FileCtrl;
{$IFNDEF FPC}
{$R *.dfm}
{$ENDIF FPC}

{ THYNewProjectWizardForm }

procedure TEWWizardForm.FormCreate(Sender: TObject);
var
  i: integer;
begin
  for i := 0 to ComponentCount-1 do begin
    if Components[i] is TTabSheet then TTabSheet(Components[i]).TabVisible := false;
  end;

  fValues := TStringList.Create();

  Height := Height-16;
  pc_Pages.ActivePageIndex := 0;
  OnEnterPage(pc_Pages.Pages[0],true);

  fNextPage := -1;
  fPreviousPage := -1;
end;

procedure TEWWizardForm.FormDestroy(Sender: TObject);
begin
  FreeAndNil(fValues);
end;

function TEWWizardForm.CleanPascalString(const aString:string):string;
begin
  result := aString;
  result := StringReplace(result,'''','''''',[rfReplaceAll]); { replace quotes with double quotes }
  result := StringReplace(result,#13#10,'''#13#10''',[rfReplaceAll]);
  result := ''''+result+'''';
end;


procedure TEWWizardForm.btn_NextClick(Sender: TObject);
begin
  if pc_Pages.ActivePageIndex+1 < pc_Pages.PageCount then begin
    fInEnterPage := true;
    try
      OnLeavePage(pc_Pages.Pages[pc_Pages.ActivePageIndex],true);
      OnEnterPage(pc_Pages.Pages[NextPage],true);
    finally
      fInEnterPage := false;
    end;
    fPreviousPage := pc_Pages.ActivePageIndex;
    pc_Pages.ActivePageIndex := NextPage;
    if Assigned(fActiveControl) then begin
      inherited ActiveControl := fActiveControl;
      fActiveControl := nil;
    end;
  end;
  fNextPage := -1;
  AfterEnterPage(pc_Pages.ActivePage, true);
end;

procedure TEWWizardForm.btn_BackClick(Sender: TObject);
begin
  if pc_Pages.ActivePageIndex > 0 then begin
    fInEnterPage := true;
    try
      OnLeavePage(pc_Pages.Pages[pc_Pages.ActivePageIndex],false);
      OnEnterPage(pc_Pages.Pages[PreviousPage],false);
    finally
      fInEnterPage := false;
    end;
    pc_Pages.ActivePageIndex := PreviousPage;
    if Assigned(fActiveControl) then begin
      inherited ActiveControl := fActiveControl;
      fActiveControl := nil;
    end;
  end;
  fNextPage := -1;
  fPreviousPage := -1;
  AfterEnterPage(pc_Pages.ActivePage, false);
end;


procedure TEWWizardForm.OnEnterPage(aPage: TTabSheet; aMovingForward: boolean);
var
  i: integer;
begin
  {$IFDEF FPC}
  if aMovingForward then btn_Finish.Visible := false else // for prevent warnings
  {$ENDIF}
  btn_Finish.Visible := false;
  btn_Next.Visible := true;
  if aPage = ts_Welcome then begin
    btn_Back.Enabled := false;
    btn_Next.Enabled := true;
    ActiveControl := btn_Next;
  end
  else if aPage = ts_Finish then begin
    {$IFNDEF FPC}
    lv_Options.Items.BeginUpdate();
    {$ENDIF}
    try
      lv_Options.Items.Clear();
      for i := 0 to Values.Count-1 do begin
        with lv_Options.Items.Add() do begin
          Caption := Values.Names[i];
          SubItems.Add(Values.Values[Values.Names[i]]);
        end;
      end; { for }
      btn_Finish.Visible := true;
      btn_Finish.Enabled := true;
      btn_Next.Visible := false;
      ActiveControl := btn_Finish;
    finally
      {$IFNDEF FPC}
      lv_Options.Items.EndUpdate();
      {$ENDIF}
    end;
  end
  else { default for custom added pages } begin
    btn_Back.Enabled := true;
    btn_Next.Enabled := true;
  end;
end;

procedure TEWWizardForm.OnLeavePage(aPage: TTabSheet; aMovingForward: boolean);
begin
end;

function TEWWizardForm.Execute: boolean;
begin
  result := (ShowModal() = 1); // idOk=1
end;

class function TEWWizardForm.Execute(aOwner: TComponent): boolean;
begin
  with self.Create(aOwner) do try
    result := Execute();
  finally
    Free();
  end;
end;

function TEWWizardForm.GetActiveControl: TWinControl;
begin
  if Assigned(fActiveControl) then
    result := fActiveControl
  else
    result := inherited ActiveControl;
end;

procedure TEWWizardForm.SetActiveControl(const Value: TWinControl);
begin
  if fInEnterPage then begin
    fActiveControl := Value;
  end
  else begin
    inherited ActiveControl := Value;
    fActiveControl := nil;
  end;
end;

function TEWWizardForm.GetNextPage: integer;
begin
  Result := fNextPage;
  if result = -1 then result := pc_Pages.ActivePageIndex+1;
end;

function TEWWizardForm.GetPreviousPage: integer;
begin
  Result := fPreviousPage;
  if result = -1 then result := pc_Pages.ActivePageIndex-1;
end;

procedure TEWWizardForm.AfterEnterPage(aPage: TTabSheet;
  aMovingForward: boolean);
begin

end;

{$IFDEF FPC}
initialization
  {$i uEWWizard.lrs}
{$ENDIF}
end.