make it explicitly clear that the len parameter of SetData() is in bytes

[wxWidgets.git] / interface / wx / cmndata.h

/////////////////////////////////////////////////////////////////////////////
// Name:        cmndata.h
// Purpose:     interface of common wx*Data classes (font, colour, print)
// Author:      wxWidgets team
// RCS-ID:      $Id$
// Licence:     wxWindows license
/////////////////////////////////////////////////////////////////////////////

/**
    @class wxFontData

    This class holds a variety of information related to font dialogs.

    @library{wxcore}
    @category{cmndlg,data}

    @see @ref overview_cmndlg_font, wxFont, wxFontDialog
*/
class wxFontData : public wxObject
{
public:
    /**
        Constructor. Initializes @e fontColour to black, @e showHelp to @false,
        @e allowSymbols to @true, @e enableEffects to @true, @e minSize to 0
        and @e maxSize to 0.
    */
    wxFontData();

    /**
        Enables or disables "effects" under Windows or generic only. This
        refers to the controls for manipulating colour, strikeout and underline
        properties.

        The default value is @true.
    */
    void EnableEffects(bool enable);

    /**
        Under Windows, returns a flag determining whether symbol fonts can be
        selected. Has no effect on other platforms.

        The default value is @true.
    */
    bool GetAllowSymbols() const;

    /**
        Gets the font chosen by the user if the user pressed OK
        (wxFontDialog::ShowModal() returned wxID_OK).
    */
    wxFont GetChosenFont() const;

    /**
        Gets the colour associated with the font dialog.

        The default value is black.
    */
    const wxColour& GetColour() const;

    /**
        Determines whether "effects" are enabled under Windows. This refers to
        the controls for manipulating colour, strikeout and underline
        properties.

        The default value is @true.
    */
    bool GetEnableEffects() const;

    /**
        Gets the font that will be initially used by the font dialog. This
        should have previously been set by the application.
    */
    wxFont GetInitialFont() const;

    /**
        Returns @true if the Help button will be shown (Windows only).

        The default value is @false.
    */
    bool GetShowHelp() const;

    /**
        Under Windows, determines whether symbol fonts can be selected. Has no
        effect on other platforms.

        The default value is @true.
    */
    void SetAllowSymbols(bool allowSymbols);

    /**
        Sets the font that will be returned to the user (for internal use
        only).
    */
    void SetChosenFont(const wxFont& font);

    /**
        Sets the colour that will be used for the font foreground colour.

        The default colour is black.
    */
    void SetColour(const wxColour& colour);

    /**
        Sets the font that will be initially used by the font dialog.
    */
    void SetInitialFont(const wxFont& font);

    /**
        Sets the valid range for the font point size (Windows only).

        The default is 0, 0 (unrestricted range).
    */
    void SetRange(int min, int max);

    /**
        Determines whether the Help button will be displayed in the font dialog
        (Windows only).

        The default value is @false.
    */
    void SetShowHelp(bool showHelp);

    /**
        Assignment operator for the font data.
    */
    wxFontData& operator =(const wxFontData& data);
};



/**
    @class wxPageSetupDialogData

    This class holds a variety of information related to wxPageSetupDialog.

    It contains a wxPrintData member which is used to hold basic printer
    configuration data (as opposed to the user-interface configuration settings
    stored by wxPageSetupDialogData).

    @library{wxcore}
    @category{printing,data}

    @see @ref overview_printing, wxPageSetupDialog
*/
class wxPageSetupDialogData : public wxObject
{
public:
    /**
        Default constructor.
    */
    wxPageSetupDialogData();

    /**
        Copy constructor.
    */
    wxPageSetupDialogData(const wxPageSetupDialogData& data);

    /**
        Construct an object from a print data object.
    */
    wxPageSetupDialogData(const wxPrintData& printData);

    /**
        Destructor.
    */
    virtual ~wxPageSetupDialogData();

    /**
        Enables or disables the "Help" button (Windows only).
    */
    void EnableHelp(bool flag);

    /**
        Enables or disables the margin controls (Windows only).
    */
    void EnableMargins(bool flag);

    /**
        Enables or disables the orientation control (Windows only).
    */
    void EnableOrientation(bool flag);

    /**
        Enables or disables the paper size control (Windows only).
    */
    void EnablePaper(bool flag);

    /**
        Enables or disables the "Printer" button, which invokes a printer setup
        dialog.
    */
    void EnablePrinter(bool flag);

    /**
        Returns @true if the dialog will simply return default printer
        information (such as orientation) instead of showing a dialog (Windows
        only).
    */
    bool GetDefaultInfo() const;

    /**
        Returns @true if the page setup dialog will take its minimum margin
        values from the currently selected printer properties (Windows only).
    */
    bool GetDefaultMinMargins() const;

    /**
        Returns @true if the printer setup button is enabled.
    */
    bool GetEnableHelp() const;

    /**
        Returns @true if the margin controls are enabled (Windows only).
    */
    bool GetEnableMargins() const;

    /**
        Returns @true if the orientation control is enabled (Windows only).
    */
    bool GetEnableOrientation() const;

    /**
        Returns @true if the paper size control is enabled (Windows only).
    */
    bool GetEnablePaper() const;

    /**
        Returns @true if the printer setup button is enabled.
    */
    bool GetEnablePrinter() const;

    /**
        Returns the right (x) and bottom (y) margins in millimetres.
    */
    wxPoint GetMarginBottomRight() const;

    /**
        Returns the left (x) and top (y) margins in millimetres.
    */
    wxPoint GetMarginTopLeft() const;

    /**
        Returns the right (x) and bottom (y) minimum margins the user can enter
        (Windows only). Units are in millimetres.
    */
    wxPoint GetMinMarginBottomRight() const;

    /**
        Returns the left (x) and top (y) minimum margins the user can enter
        (Windows only). Units are in millimetres.
    */
    wxPoint GetMinMarginTopLeft() const;

    /**
        Returns the paper id (stored in the internal wxPrintData object).

        @see wxPrintData::SetPaperId()
    */
    wxPaperSize GetPaperId() const;

    /**
        Returns the paper size in millimetres.
    */
    wxSize GetPaperSize() const;

    /**
        Returns a reference to the print data associated with this object.
    */
    wxPrintData& GetPrintData();
    const wxPrintData& GetPrintData() const;

    /**
        Returns @true if the print data associated with the dialog data is
        valid. This can return @false on Windows if the current printer is not
        set, for example. On all other platforms, it returns @true.
    */
    bool IsOk() const;

    /**
        Pass @true if the dialog will simply return default printer information
        (such as orientation) instead of showing a dialog (Windows only).
    */
    void SetDefaultInfo(bool flag);

    /**
        Pass @true if the page setup dialog will take its minimum margin values
        from the currently selected printer properties (Windows only). Units
        are in millimetres.
    */
    void SetDefaultMinMargins(bool flag);

    /**
        Sets the right (x) and bottom (y) margins in millimetres.
    */
    void SetMarginBottomRight(const wxPoint& pt);

    /**
        Sets the left (x) and top (y) margins in millimetres.
    */
    void SetMarginTopLeft(const wxPoint& pt);

    /**
        Sets the right (x) and bottom (y) minimum margins the user can enter
        (Windows only). Units are in millimetres.
    */
    void SetMinMarginBottomRight(const wxPoint& pt);

    /**
        Sets the left (x) and top (y) minimum margins the user can enter
        (Windows only). Units are in millimetres.
    */
    void SetMinMarginTopLeft(const wxPoint& pt);

    /**
        Sets the paper size id. Calling this function overrides the explicit
        paper dimensions passed in SetPaperSize().

        @see wxPrintData::SetPaperId()
    */
    void SetPaperId(wxPaperSize id);

    /**
        Sets the paper size in millimetres. If a corresponding paper id is
        found, it will be set in the internal wxPrintData object, otherwise the
        paper size overrides the paper id.
    */
    void SetPaperSize(const wxSize& size);

    /**
        Sets the print data associated with this object.
    */
    void SetPrintData(const wxPrintData& printData);

    /**
        Assigns print data to this object.
    */
    wxPageSetupDialogData& operator =(const wxPrintData& data);

    /**
        Assigns page setup data to this object.
    */
    wxPageSetupDialogData& operator =(const wxPageSetupDialogData& data);
};



/**
    @class wxColourData

    This class holds a variety of information related to colour dialogs.

    @library{wxcore}
    @category{cmndlg,data}

    @see wxColour, wxColourDialog, @ref overview_cmndlg_colour
*/
class wxColourData : public wxObject
{
public:
    /**
        Constructor. Initializes the custom colours to @c wxNullColour, the
        @e data colour setting to black, and the @e choose full setting to
        @true.
    */
    wxColourData();

    /**
        Destructor.
    */
    virtual ~wxColourData();

    /**
        Under Windows, determines whether the Windows colour dialog will
        display the full dialog with custom colour selection controls. Under
        PalmOS, determines whether colour dialog will display full rgb colour
        picker or only available palette indexer. Has no meaning under other
        platforms.

        The default value is @true.
    */
    bool GetChooseFull() const;

    /**
        Gets the current colour associated with the colour dialog.

        The default colour is black.
    */
    wxColour& GetColour();

    /**
        Returns custom colours associated with the colour dialog.

        @param i
            An integer between 0 and 15, being any of the 15 custom colours
            that the user has saved. The default custom colours are invalid
            colours.
    */
    wxColour GetCustomColour(int i) const;

    /**
        Under Windows, tells the Windows colour dialog to display the full
        dialog with custom colour selection controls. Under other platforms,
        has no effect.

        The default value is @true.
    */
    void SetChooseFull(bool flag);

    /**
        Sets the default colour for the colour dialog.

        The default colour is black.
    */
    void SetColour(const wxColour& colour);

    /**
        Sets custom colours for the colour dialog.

        @param i
            An integer between 0 and 15 for whatever custom colour you want to
            set. The default custom colours are invalid colours.
        @param colour
            The colour to set
    */
    void SetCustomColour(int i, const wxColour& colour);

    /**
        Converts the colours saved in this class in a string form, separing
        the various colours with a comma.
    */
    wxString ToString() const;

    /**
        Decodes the given string, which should be in the same format returned
        by ToString(), and sets the internal colours.
    */
    bool FromString(const wxString& str);

    /**
        Assignment operator for the colour data.
    */
    wxColourData& operator =(const wxColourData& data);
};



/**
    Enumeration of various printer bin sources.

    @see wxPrintData::SetBin()
*/
enum wxPrintBin
{
    wxPRINTBIN_DEFAULT,

    wxPRINTBIN_ONLYONE,
    wxPRINTBIN_LOWER,
    wxPRINTBIN_MIDDLE,
    wxPRINTBIN_MANUAL,
    wxPRINTBIN_ENVELOPE,
    wxPRINTBIN_ENVMANUAL,
    wxPRINTBIN_AUTO,
    wxPRINTBIN_TRACTOR,
    wxPRINTBIN_SMALLFMT,
    wxPRINTBIN_LARGEFMT,
    wxPRINTBIN_LARGECAPACITY,
    wxPRINTBIN_CASSETTE,
    wxPRINTBIN_FORMSOURCE,

    wxPRINTBIN_USER,
};

/**
    @class wxPrintData

    This class holds a variety of information related to printers and printer
    device contexts. This class is used to create a wxPrinterDC and a
    wxPostScriptDC. It is also used as a data member of wxPrintDialogData and
    wxPageSetupDialogData, as part of the mechanism for transferring data
    between the print dialogs and the application.

    @remarks

    The following functions are specific to PostScript printing and have not
    yet been documented:

    @code
    const wxString& GetPrinterCommand() const ;
    const wxString& GetPrinterOptions() const ;
    const wxString& GetPreviewCommand() const ;
    const wxString& GetFilename() const ;
    const wxString& GetFontMetricPath() const ;
    double GetPrinterScaleX() const ;
    double GetPrinterScaleY() const ;
    long GetPrinterTranslateX() const ;
    long GetPrinterTranslateY() const ;
    // wxPRINT_MODE_PREVIEW, wxPRINT_MODE_FILE, wxPRINT_MODE_PRINTER
    wxPrintMode GetPrintMode() const ;

    void SetPrinterCommand(const wxString& command) ;
    void SetPrinterOptions(const wxString& options) ;
    void SetPreviewCommand(const wxString& command) ;
    void SetFilename(const wxString& filename) ;
    void SetFontMetricPath(const wxString& path) ;
    void SetPrinterScaleX(double x) ;
    void SetPrinterScaleY(double y) ;
    void SetPrinterScaling(double x, double y) ;
    void SetPrinterTranslateX(long x) ;
    void SetPrinterTranslateY(long y) ;
    void SetPrinterTranslation(long x, long y) ;
    void SetPrintMode(wxPrintMode printMode) ;
    @endcode

    @library{wxcore}
    @category{printing,data}

    @see @ref overview_printing, wxPrintDialog, wxPageSetupDialog,
         wxPrintDialogData, wxPageSetupDialogData, @ref overview_cmndlg_print,
         wxPrinterDC, wxPostScriptDC
*/
class wxPrintData : public wxObject
{
public:
    /**
        Default constructor.
    */
    wxPrintData();

    /**
        Copy constructor.
    */
    wxPrintData(const wxPrintData& data);

    /**
        Destructor.
    */
    virtual ~wxPrintData();

    /**
        Returns the current bin (papersource). By default, the system is left
        to select the bin (@c wxPRINTBIN_DEFAULT is returned).

        See SetBin() for the full list of bin values.
    */
    wxPrintBin GetBin() const;

    /**
        Returns @true if collation is on.
    */
    bool GetCollate() const;

    /**
        Returns @true if colour printing is on.
    */
    bool GetColour() const;

    /**
        Returns the duplex mode. One of wxDUPLEX_SIMPLEX, wxDUPLEX_HORIZONTAL,
        wxDUPLEX_VERTICAL.
    */
    wxDuplexMode GetDuplex() const;

    /**
        Returns the number of copies requested by the user.
    */
    int GetNoCopies() const;

    /**
        Gets the orientation. This can be wxLANDSCAPE or wxPORTRAIT.
    */
    int GetOrientation() const;

    /**
        Returns the paper size id.

        @see SetPaperId()
    */
    wxPaperSize GetPaperId() const;

    /**
        Returns the printer name. If the printer name is the empty string, it
        indicates that the default printer should be used.
    */
    const wxString& GetPrinterName() const;

    /**
        Returns the current print quality. This can be a positive integer,
        denoting the number of dots per inch, or  one of the following
        identifiers:

        - wxPRINT_QUALITY_HIGH
        - wxPRINT_QUALITY_MEDIUM
        - wxPRINT_QUALITY_LOW
        - wxPRINT_QUALITY_DRAFT

        On input you should pass one of these identifiers, but on return you
        may get back a positive integer indicating the current resolution
        setting.
    */
    wxPrintQuality GetQuality() const;

    /**
        Returns @true if the print data is valid for using in print dialogs.
        This can return @false on Windows if the current printer is not set,
        for example. On all other platforms, it returns @true.
    */
    bool IsOk() const;

    /**
        Sets the current bin.
    */
    void SetBin(wxPrintBin flag);

    /**
        Sets collation to on or off.
    */
    void SetCollate(bool flag);

    /**
        Sets colour printing on or off.
    */
    void SetColour(bool flag);

    /**
        Returns the duplex mode. One of wxDUPLEX_SIMPLEX, wxDUPLEX_HORIZONTAL,
        wxDUPLEX_VERTICAL.
    */
    void SetDuplex(wxDuplexMode mode);

    /**
        Sets the default number of copies to be printed out.
    */
    void SetNoCopies(int n);

    /**
        Sets the orientation. This can be wxLANDSCAPE or wxPORTRAIT.
    */
    void SetOrientation(int orientation);

    /**
        Sets the paper id. This indicates the type of paper to be used. For a
        mapping between paper id, paper size and string name, see
        wxPrintPaperDatabase in @c "paper.h" (not yet documented).
    */
    void SetPaperId(wxPaperSize paperId);

    /**
        Sets the printer name. This can be the empty string to indicate that
        the default printer should be used.
    */
    void SetPrinterName(const wxString& printerName);

    /**
        Sets the desired print quality. This can be a positive integer,
        denoting the number of dots per inch, or one of the following
        identifiers:

        - wxPRINT_QUALITY_HIGH
        - wxPRINT_QUALITY_MEDIUM
        - wxPRINT_QUALITY_LOW
        - wxPRINT_QUALITY_DRAFT

        On input you should pass one of these identifiers, but on return you
        may get back a positive integer indicating the current resolution
        setting.
    */
    void SetQuality(wxPrintQuality quality);

    /**
        Assigns print data to this object.
    */
    wxPrintData& operator =(const wxPrintData& data);
};



/**
    @class wxPrintDialogData

    This class holds information related to the visual characteristics of
    wxPrintDialog. It contains a wxPrintData object with underlying printing
    settings.

    @library{wxcore}
    @category{printing,cmndlg,data}

    @see @ref overview_printing, wxPrintDialog, @ref overview_cmndlg_print
*/
class wxPrintDialogData : public wxObject
{
public:
    /**
        Default constructor.
    */
    wxPrintDialogData();

    /**
        Copy constructor.
    */
    wxPrintDialogData(const wxPrintDialogData& dialogData);

    /**
        Construct an object from a print dialog data object.
    */
    wxPrintDialogData(const wxPrintData& printData);

    /**
        Destructor.
    */
    virtual ~wxPrintDialogData();

    /**
        Enables or disables the "Help" button.
    */
    void EnableHelp(bool flag);

    /**
        Enables or disables the "Page numbers" controls.
    */
    void EnablePageNumbers(bool flag);

    /**
        Enables or disables the "Print to file" checkbox.
    */
    void EnablePrintToFile(bool flag);

    /**
        Enables or disables the "Selection" radio button.
    */
    void EnableSelection(bool flag);

    /**
        Returns @true if the user requested that all pages be printed.
    */
    bool GetAllPages() const;

    /**
        Returns @true if the user requested that the document(s) be collated.
    */
    bool GetCollate() const;

    /**
        Returns the @e from page number, as entered by the user.
    */
    int GetFromPage() const;

    /**
        Returns the @e maximum page number.
    */
    int GetMaxPage() const;

    /**
        Returns the @e minimum page number.
    */
    int GetMinPage() const;

    /**
        Returns the number of copies requested by the user.
    */
    int GetNoCopies() const;

    /**
        Returns a reference to the internal wxPrintData object.
    */
    wxPrintData& GetPrintData();

    /**
        Returns @true if the user has selected printing to a file.
    */
    bool GetPrintToFile() const;

    /**
        Returns @true if the user requested that the selection be printed
        (where "selection" is a concept specific to the application).
    */
    bool GetSelection() const;

    /**
        Returns the @e "print to" page number, as entered by the user.
    */
    int GetToPage() const;

    /**
        Returns @true if the print data is valid for using in print dialogs.
        This can return @false on Windows if the current printer is not set,
        for example. On all other platforms, it returns @true.
    */
    bool IsOk() const;

    /**
        Sets the "Collate" checkbox to @true or @false.
    */
    void SetCollate(bool flag);

    /**
        Sets the @e from page number.
    */
    void SetFromPage(int page);

    /**
        Sets the @e maximum page number.
    */
    void SetMaxPage(int page);

    /**
        Sets the @e minimum page number.
    */
    void SetMinPage(int page);

    /**
        Sets the default number of copies the user has requested to be printed
        out.
    */
    void SetNoCopies(int n);

    /**
        Sets the internal wxPrintData.
    */
    void SetPrintData(const wxPrintData& printData);

    /**
        Sets the "Print to file" checkbox to @true or @false.
    */
    void SetPrintToFile(bool flag);

    /**
        Selects the "Selection" radio button. The effect of printing the
        selection depends on how the application implements this command, if at
        all.
    */
    void SetSelection(bool flag);

    /**
        @deprecated This function has been deprecated since version 2.5.4.

        Determines whether the dialog to be shown will be the Print dialog
        (pass @false) or Print Setup dialog (pass @true).

    */
    void SetSetupDialog(bool flag);

    /**
        Sets the @e "print to" page number.
    */
    void SetToPage(int page);

    /**
        Assigns print data to this object.
    */
    void operator =(const wxPrintData& data);

    /**
        Assigns another print dialog data object to this object.
    */
    void operator =(const wxPrintDialogData& data);
};