prevwin.h

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//----------------------------------------------------------------------------
// ObjectWindows
// Copyright (c) 1995, 1996 by Borland International, All Rights Reserved
//
/// \file
/// Definition of TPreviewWin, the Preview Window class
//----------------------------------------------------------------------------
 
#if !defined(OWL_PREVWIN_H)
#define OWL_PREVWIN_H
 
#include <owl/private/defs.h>
#if defined(BI_HAS_PRAGMA_ONCE)
# pragma once
#endif
 
#include <owl/decframe.h>
#include <owl/controlb.h>
#include <owl/printer.h>
#include <owl/preview.h>
#include <owl/buttonga.h>
#include <owl/textgadg.h>
 
 
namespace owl {
 
#include <owl/preclass.h>
 
/// \addtogroup print
/// @{
/// \class TPreviewWin
// ~~~~~ ~~~~~~~~~~~
/// TPreviewWin encapsulates a simple preview window frame. It contains one or two
/// preview pages as well as a simple toolbar.
//
class _OWLCLASS TPreviewWin : public TDecoratedFrame {
  public:
    TPreviewWin(TWindow*   parentWindow,
                TPrinter&  printer,
                TPrintout& printout,
                TWindow&   dataWindow,
                LPCTSTR title,
                TLayoutWindow* client);
 
    TPreviewWin(
      TWindow* parentWindow,
      TPrinter&  printer,
      TPrintout& printout,
      TWindow& dataWindow,
      const tstring& title,
      TLayoutWindow* client);
 
   ~TPreviewWin() override;
 
  protected:
 
    void Init();
 
    void SetupWindow() override;
    virtual void       LayoutPages();
    virtual TPreviewPage* GetNewPreviewPage(TWindow* parent,
                                            TPrintout& printout,
                                            TPrintDC&  prndc,
                                            TSize&     printExtent,
                                            int        pagenum = 1);
    virtual void       SetupSpeedBar();
    virtual void       UpdateSpeedBar();
 
    int                FirstPage;         ///< First Page displayed
    int                LastPage;          ///< Last Page displayed
    TWindow&           DataWindow;        ///< Window /w data we're previewing
    TPrinter&          Printer;           ///< Printer device object
    TPrintout&         Printout;          ///< Printer document object
    TPrintDC*          PrnDC;             ///< Printer DC
    TSize              PrinterPageSize;   ///< Printer's page size
 
    TControlBar*       PreviewSpeedBar;   ///< Pointer to toolbar object
    TPreviewPage*      Page1;             ///< Pointer to first preview page
    TPreviewPage*      Page2;             ///< Pointer to second preview page
 
  private:
    TLayoutWindow*     Client;
 
    void               CmPrevious();
    void               CePrevious(TCommandEnabler& ce);
    void               CmNext();
    void               CeNext(TCommandEnabler& ce);
    void               CmOneUp();
    void               CmTwoUp();
    void               CeTwoUp(TCommandEnabler& ce);
    void               CmDone();
 
  DECLARE_RESPONSE_TABLE(TPreviewWin);
};
 
/// @}
 
#include <owl/posclass.h>
 
 
} // OWL namespace
 
 
#endif  // OWL_PREVWIN_H