printer.h

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//----------------------------------------------------------------------------
// ObjectWindows
// Copyright (c) 1992, 1996 by Borland International, All Rights Reserved
//----------------------------------------------------------------------------
 
#if !defined(OWL_PRINTER_H)
#define OWL_PRINTER_H
 
#include <owl/private/defs.h>
#if defined(BI_HAS_PRAGMA_ONCE)
# pragma once
#endif
 
#include <owl/dialog.h>
#include <owl/printdia.h>
 
#pragma pack(push, 8)
#include <winspool.h>
#pragma pack(pop)
 
#include <vector>
#include <memory>
#include <owl/printer.rh>
 
namespace owl {
 
class _OWLCLASS TPrintDC;
 
#include <owl/preclass.h>
 
/// \addtogroup print
/// @{
 
//
/// \class TPrinterAbortDlg
/// TPrinterAbortDlg is the object type of the default printer-abort dialog box.
/// This dialog box is initialized to display the title of the current printout, as
/// well as the device and port currently used for printing.
///
/// TPrinterAbortDlg expects to have three static text controls, with control IDs of
/// 101 for the title, 102 for the device, and 103 for the port. These controls must
/// have "%s" somewhere in the text strings so that they can be replaced by the
/// title, device, and port. The dialog-box controls can be in any position and tab
/// order.
//
class _OWLCLASS TPrinterAbortDlg : public TDialog
{
  public:
    TPrinterAbortDlg(TWindow* parent, TResId, const tstring& title, const tstring& device, const tstring& port, HDC = HDC(-1));
 
  protected:
    void SetupWindow() override;
    void     CmCancel();
 
    HDC      PrnDC;              ///< Device context to print on
 
  DECLARE_RESPONSE_TABLE(TPrinterAbortDlg);
};
 
//
/// TPrintout banding flags
//
enum TPrintoutFlags
{
  pfGraphics = 0x01,     ///< Current band accepts graphics
  pfText     = 0x02,     ///< Current band accepts text
  pfBoth     = (pfGraphics|pfText) ///< Current band accepts both text and graphics
};
 
//
/// \class TPrintout
/// TPrintout represents the physical printed document that is to sent to a printer
/// to be printed. TPrintout does the rendering of the document onto the printer.
/// Because this object type is abstract, it cannot be used to print anything by
/// itself. For every document, or document type, a class derived from TPrintout
/// must be created and its PrintPage function must be overridden.
//
class _OWLCLASS TPrintout : public TStreamableBase
{
  public:
    explicit TPrintout(LPCTSTR title);
    TPrintout(const tstring& title);
    virtual ~TPrintout();
 
    virtual void    SetPrintParams(TPrintDC* dc, TSize pageSize);
    virtual void    GetDialogInfo(int& minPage, int& maxPage, int& selFromPage, int& selToPage);
    virtual void    BeginPrinting();
    virtual void    BeginDocument(int startPage, int endPage, uint flags);
    virtual bool    HasPage(int pageNumber);
    virtual void    PrintPage(int page, TRect& rect, uint flags);
    virtual void    EndDocument();
    virtual void    EndPrinting();
 
    // Accessors to data members of printout object
    //
    TSize           GetPageSize() const;
    LPCTSTR         GetTitle() const;
    bool            WantBanding() const;
    void            SetBanding(bool banding=true);
    bool            WantForceAllBands() const;
    void            SetForceAllBands(bool force=true);
    TPrintDC*       GetPrintDC();
 
  protected:
 
    void SetTitle(LPCTSTR title);
    void SetTitle(const tstring& title);
    void SetPrintDC(TPrintDC* dc);
    void SetPageSize(const TSize& pagesize);
 
  protected_data:
 
    /// Title is the current title to use for the printout. By default, this title
    /// appears in the Abort dialog box and as the name of the job in the Print Manager.
    //
    tstring Title;
 
    /// If Banding is true, the printout is banded and the PrintPage function is called
    /// once for every band. Otherwise, PrintPage is called only once for every page.
    /// Banding a printout is more memory- and time-efficient than not banding. By
    /// default, Banding is set to false.
    //
    bool Banding;
 
    /// Many device drivers do not provide all printer bands if both text and graphics
    /// are not performed on the first band (which is typically a text-only band).
    /// Leaving ForceAllBands true forces the printer driver to provide all bands
    /// regardless of what calls are made in the PrintPage function. If PrintPage does
    /// nothing but display text, it is more efficient for ForceAllBands to be false. By
    /// default, it is true. ForceAllBands takes effect only if Banding is true.
    //
    bool ForceAllBands;
 
    TPrintDC* DC;       ///< pointer to DC created amd owned by our TPrinter
    TSize     PageSize; ///< dimensions of the printout page
 
  private:
 
    // Hidden to prevent accidental copying or assignment
    //
    TPrintout(const TPrintout&);
    TPrintout& operator =(const TPrintout&);
 
  DECLARE_STREAMABLE_OWL(TPrintout, 1);
};
 
DECLARE_STREAMABLE_INLINES(owl::TPrintout);
 
//
/// \class TPrinter
/// TPrinter is an encapsulation around the Windows printer device interface,
/// and represents the physical printer device.
///
/// To print or configure a printer, initialize an instance of TPrinter.
/// To print a TPrintout, send the TPrintout to the TPrinter's Print function.
///
/// Examples:
///
/// \code
///   auto defaultPrinter = TPrinter{};
///   defaultPrinter.Print(parent, printout, true); // Prompt.
///   auto pdfPrinter = TPrinter{"Microsoft Print to PDF"};
///   pdfPrinter.Print(nullptr, printout, false); // Do not prompt.
/// \endcode
//
class _OWLCLASS TPrinter: public TStreamableBase
{
  public:
 
    //
    /// Contains information about the initialization and environment of a printer device.
    /// Encapsulates the DEVMODE structure in the Windows API.
    /// http://msdn.microsoft.com/en-gb/library/windows/desktop/dd183565.aspx
    //
    class _OWLCLASS TDevMode
    {
    public:
      TDevMode(const tstring& device);
 
      //
      /// Returns a pointer to the device data (const).
      //
      auto GetData() const -> const DEVMODE* { return reinterpret_cast<const DEVMODE*>(Buffer.data()); }
 
      //
      /// Returns a pointer to the device data.
      //
      auto GetData() -> DEVMODE* { return reinterpret_cast<DEVMODE*>(Buffer.data()); }
 
    private:
      std::vector<char> Buffer;
    };
 
    static auto GetDefaultPrinter() -> tstring;
 
    explicit TPrinter(const tstring& device = GetDefaultPrinter());
    TPrinter(TPrinter&& other);
    virtual ~TPrinter();
 
    void SetDevice(const tstring& device);
    virtual void     ClearDevice();
    virtual void     Setup(TWindow* parent);
    virtual bool     Print(TWindow* parent, TPrintout& printout, bool prompt);
    virtual void     ReportError(TWindow* parent, TPrintout& printout);
 
    TPrintDialog::TData& GetSetup();
    auto GetSetup() const -> const TPrintDialog::TData& { return const_cast<TPrinter*>(this)->GetSetup(); }
    auto GetDC() -> std::unique_ptr<TPrintDC>;
 
    static void      SetUserAbort(HDC abortDC = HDC(-1));
    static HDC       GetUserAbort();
 
    // Accessors to protected state data
    //
    int              GetError();
 
    TPrintDialog::TData* GetData();
    void             SetData(TPrintDialog::TData* data);
 
    TSize            GetPageSize() const;
    void             SetPageSize(const TSize& pagesize);
    TSize            GetPageSizeInch() const;
    void             SetPageSizeInch(const TSize& pageSizeInch);
 
    /// \name Retrieves/assigns the output file
    /// The output file can be set to redirect the print job.
    /// Set to blank to disable redirection (default).
    //
    /// @{
    LPCTSTR          GetOutputFile() const;
    void             SetOutputFile(const tstring& outputFile);
    /// @}
 
    virtual void     SetPageSizes(const TPrintDC& dc);
 
    //
    /// Encapsulates the capability constants defined for the Windows API function DeviceCapabilities.
    /// http://msdn.microsoft.com/en-us/library/windows/desktop/dd183552.aspx
    /// \sa GetCapability()
    //
    enum TCapability
    {
      dcBinNames = DC_BINNAMES,
      dcBins = DC_BINS,
      dcCollate = DC_COLLATE,
      dcColorDevice = DC_COLORDEVICE,
      dcCopies = DC_COPIES,
      dcDriver = DC_DRIVER,
      dcDuplex = DC_DUPLEX,
      dcEnumResolutions = DC_ENUMRESOLUTIONS,
      dcExtra = DC_EXTRA,
      dcFields = DC_FIELDS,
      dcFileDependencies = DC_FILEDEPENDENCIES,
      dcMaxExtent = DC_MAXEXTENT,
      dcMediaReady = DC_MEDIAREADY,
      dcMediaTypeNames = DC_MEDIATYPENAMES,
      dcMediaTypes = DC_MEDIATYPES,
      dcMinExtent = DC_MINEXTENT,
      dcOrientation = DC_ORIENTATION,
      dcNup = DC_NUP,
      dcPaperNames = DC_PAPERNAMES,
      dcPapers = DC_PAPERS,
      dcPaperSize = DC_PAPERSIZE,
      dcPersonality = DC_PERSONALITY,
      dcPrinterMem = DC_PRINTERMEM,
      dcPrintRate = DC_PRINTRATE,
      dcPrintRatePpm = DC_PRINTRATEPPM,
      dcPrintRateUnit = DC_PRINTRATEUNIT,
      dcSize = DC_SIZE,
      dcStaple = DC_STAPLE,
      dcTrueType = DC_TRUETYPE,
      dcVersion = DC_VERSION
    };
 
    //
    /// Get information about the device.
    /// This is a wrapper for the Windows API function DeviceCapabilities.
    /// http://msdn.microsoft.com/en-us/library/windows/desktop/dd183552.aspx
    /// \note This function is not type-safe. Prefer the type-safe accessors instead.
    //
    auto GetCapability(TCapability capability, LPTSTR output) const -> DWORD
    {
      auto& s = GetSetup();
      return DeviceCapabilities(s.GetDeviceName(), s.GetOutputName(), capability, output, s.GetDevMode());
    }
 
    /// \name Return types for capability accessors
    /// @{
 
    using TBinNames = std::vector<tstring>; ///< Return type for GetBinNames.
    using TBins = std::vector<WORD>; ///< Return type for GetBins.
    using TResolutions = std::vector<TSize>; ///< Return type for GetResolutions.
    using TFileDependencies = std::vector<tstring>; ///< Return type for GetDriverDependencies.
    using TPaperForms = std::vector<tstring>; ///< Return type for GetReadyMedia.
    using TMediaTypeNames = std::vector<tstring>; ///< Return type for GetMediaTypeNames.
    using TMediaTypes = std::vector<DWORD>; ///< Return type for GetMediaTypes.
    using TNupConfigurations = std::vector<int>; ///< Return type for GetNupConfigurations.
    using TPaperNames = std::vector<tstring>; ///< Return type for GetPaperNames.
    using TPapers = std::vector<WORD>; ///< Return type for GetPapers.
    using TPaperSizes = std::vector<TSize>; ///< Return type for GetPaperSizes.
    using TDescriptionLanguages = std::vector<tstring>; ///< Return type for GetDescriptionsLanguages.
 
    //
    /// Return type for GetPrintRateUnit.
    //
    enum TPrintRateUnit
    {
      pruUnknown = 0,
      pruPagesPerMinute = PRINTRATEUNIT_PPM,
      pruCharactersPerSecond = PRINTRATEUNIT_CPS,
      pruLinesPerMinute = PRINTRATEUNIT_LPM,
      pruInchesPerMinute = PRINTRATEUNIT_IPM
    };
 
    /// @}
    /// \name Capability accessors (type-safe encapsulations of GetCapability)
    /// @{ 
 
    auto GetBinNames() const -> TBinNames;
    auto GetBins() const -> TBins;
    auto CanCollate() const -> bool;
    auto IsColorDevice() const -> bool;
    auto GetMaxCopies() const -> int;
    auto GetDriverVersion() const -> DWORD;
    auto HasDuplexSupport() const -> bool;
    auto GetResolutions() const -> TResolutions;
    auto GetDevModeExtra() const -> int;
    auto GetDevModeFields() const -> DWORD;
    auto GetDriverDependencies() const -> TFileDependencies;
    auto GetMaxExtent() const -> TSize;
    auto GetReadyMedia() const -> TPaperForms;
    auto GetMediaTypeNames() const -> TMediaTypeNames;
    auto GetMediaTypes() const -> TMediaTypes;
    auto GetMinExtent() const -> TSize;
    auto GetLandscapeOrientation() const -> int;
    auto GetNupConfigurations() const -> TNupConfigurations;
    auto GetPaperNames() const -> TPaperNames;
    auto GetPapers() const -> TPapers;
    auto GetPaperSizes() const -> TPaperSizes;
    auto GetDescriptionLanguages() const -> TDescriptionLanguages;
    auto GetMemoryCapacity() const -> int;
    auto GetPrintRate() const -> int;
    auto GetPrintRatePpm() const -> int;
    auto GetPrintRateUnit() const -> TPrintRateUnit;
    auto GetDevModeSize() const -> int;
    auto CanStaple() const -> bool;
    auto GetTrueTypeCapabilities() const -> DWORD;
    auto GetDriverSpecificationVersion() const -> DWORD;
 
    /// @}
 
  protected:
    virtual bool     ExecPrintDialog(TWindow* parent);
    virtual bool     ExecPageSetupDialog(TWindow* parent);
    virtual TWindow* CreateAbortWindow(TWindow* parent, TPrintout& printout);
 
  protected_data:
    int                  Error;       ///< negative if error occurred during print
    TPrintDialog::TData* Data;        ///< printer setup information
 
    TSize PageSize;        ///< size of the page
    TSize PageSizeInch;    ///< size of an inch on the page
    tstring OutputFile; ///< filename for output redirection (see request #3044058)
 
  private:
    static HDC UserAbortDC; ///< Set by print dialog to prntDC if user cancels. Set to -1 cancels all print jobs.
 
    // Hidden to prevent accidental copying or assignment
    //
    TPrinter(const TPrinter&);
    TPrinter& operator =(const TPrinter&);
 
  DECLARE_STREAMABLE_OWL(TPrinter, 2);
};
 
DECLARE_STREAMABLE_INLINES(owl::TPrinter);
 
//
/// \class TXPrinter
/// TXPrinter describes an exception that results from an invalid printer object.
/// This type of error can occur when printing to the physical printer.
//
class _OWLCLASS TXPrinter : public TXOwl
{
  public:
    TXPrinter(uint resId = IDS_PRINTERERROR);
 
    TXPrinter* Clone();
    void Throw();
    static void Raise(uint resId = IDS_PRINTERERROR);
};
 
//
/// \class TXPrinting
/// TXPrinting describes an exception that indicates that printing failed.
/// See GetErrorMessage for error codes.
//
class _OWLCLASS TXPrinting : public TXOwl
{
  public:
    TXPrinting(int error = SP_ERROR);
 
    void Throw();
    static void Raise(int error = SP_ERROR);
 
    int Error;
    tstring GetErrorMessage(TModule* = 0) const;
};
 
/// @}
 
#include <owl/posclass.h>
 
} // OWL namespace
 
#endif  // OWL_PRINTER_H