wxWidgets/interface/filepicker.h

/////////////////////////////////////////////////////////////////////////////
// Name:        filepicker.h
// Purpose:     interface of wxFilePickerCtrl
// Author:      wxWidgets team
// RCS-ID:      $Id$
// Licence:     wxWindows license
/////////////////////////////////////////////////////////////////////////////

/**
    @class wxFilePickerCtrl
    @wxheader{filepicker.h}

    This control allows the user to select a file. The generic implementation is
    a button which brings up a wxFileDialog when clicked. Native implementation
    may differ but this is usually a (small) widget which give access to the
    file-chooser
    dialog.
    It is only available if @c wxUSE_FILEPICKERCTRL is set to 1 (the default).

    @beginStyleTable
    @style{wxFLP_DEFAULT_STYLE}:
           The default style: includes wxFLP_OPEN | wxFLP_FILE_MUST_EXIST and,
           under wxMSW only, wxFLP_USE_TEXTCTRL.
    @style{wxFLP_USE_TEXTCTRL}:
           Creates a text control to the left of the picker button which is
           completely managed by the wxFilePickerCtrl and which can be used by
           the user to specify a path (see SetPath). The text control is
           automatically synchronized with button's value. Use functions
           defined in wxPickerBase to modify the text control.
    @style{wxFLP_OPEN}:
           Creates a picker which allows the user to select a file to open.
    @style{wxFLP_SAVE}:
           Creates a picker which allows the user to select a file to save.
    @style{wxFLP_OVERWRITE_PROMPT}:
           Can be combined with wxFLP_SAVE only: ask confirmation to the user
           before selecting a file.
    @style{wxFLP_FILE_MUST_EXIST}:
           Can be combined with wxFLP_OPEN only: the selected file must be an
           existing file.
    @style{wxFLP_CHANGE_DIR}:
           Change current working directory on each user file selection change.
    @endStyleTable

    @library{wxcore}
    @category{miscpickers}
    @appearance{filepickerctrl.png}

    @see wxFileDialog, wxFileDirPickerEvent
*/
class wxFilePickerCtrl : public wxPickerBase
{
public:
    /**
        Initializes the object and calls Create() with
        all the parameters.
    */
    wxFilePickerCtrl(wxWindow* parent, wxWindowID id,
                     const wxString& path = wxEmptyString,
                     const wxString& message = "Select a file",
                     const wxString& wildcard = ".",
                     const wxPoint& pos = wxDefaultPosition,
                     const wxSize& size = wxDefaultSize,
                     long style = wxFLP_DEFAULT_STYLE,
                     const wxValidator& validator = wxDefaultValidator,
                     const wxString& name = "filepickerctrl");

    /**
        @param parent
            Parent window, must not be non-@NULL.
        @param id
            The identifier for the control.
        @param path
            The initial file shown in the control. Must be a valid path to a file or
        the empty string.
        @param message
            The message shown to the user in the wxFileDialog shown by the control.
        @param wildcard
            A wildcard which defines user-selectable files (use the same syntax as for
        wxFileDialog's wildcards).
        @param pos
            Initial position.
        @param size
            Initial size.
        @param style
            The window style, see wxFLP_* flags.
        @param validator
            Validator which can be used for additional date checks.
        @param name
            Control name.
        
        @returns @true if the control was successfully created or @false if
                 creation failed.
    */
    bool Create(wxWindow* parent, wxWindowID id,
                const wxString& path = wxEmptyString,
                const wxString& message = "Select a file",
                const wxString& wildcard = ".",
                const wxPoint& pos = wxDefaultPosition,
                const wxSize& size = wxDefaultSize,
                long style = wxFLP_DEFAULT_STYLE,
                const wxValidator& validator = wxDefaultValidator,
                const wxString& name = "filepickerctrl");

    /**
        Similar to GetPath() but returns the path of
        the currently selected file as a wxFileName object.
    */
    wxFileName GetFileName() const;

    /**
        Returns the absolute path of the currently selected file.
    */
    wxString GetPath() const;

    /**
        This method does the same thing as SetPath() but
        takes a wxFileName object instead of a string.
    */
    void SetFileName(const wxFileName& filename);

    /**
        Sets the absolute path of the currently selected file. This must be a valid
        file if
        the @c wxFLP_FILE_MUST_EXIST style was given.
    */
    void SetPath(const wxString& filename);
};



/**
    @class wxDirPickerCtrl
    @wxheader{filepicker.h}

    This control allows the user to select a directory. The generic implementation
    is
    a button which brings up a wxDirDialog when clicked. Native implementation
    may differ but this is usually a (small) widget which give access to the
    dir-chooser
    dialog.
    It is only available if @c wxUSE_DIRPICKERCTRL is set to 1 (the default).

    @beginStyleTable
    @style{wxDIRP_DEFAULT_STYLE}:
           The default style: includes wxDIRP_DIR_MUST_EXIST and, under wxMSW
           only, wxDIRP_USE_TEXTCTRL.
    @style{wxDIRP_USE_TEXTCTRL}:
           Creates a text control to the left of the picker button which is
           completely managed by the wxDirPickerCtrl and which can be used by
           the user to specify a path (see SetPath). The text control is
           automatically synchronized with button's value. Use functions
           defined in wxPickerBase to modify the text control.
    @style{wxDIRP_DIR_MUST_EXIST}:
           Creates a picker which allows to select only existing directories.
           wxGTK control always adds this flag internally as it does not
           support its absence.
    @style{wxDIRP_CHANGE_DIR}:
           Change current working directory on each user directory selection
           change.
    @endStyleTable

    @library{wxcore}
    @category{miscpickers}
    @appearance{dirpickerctrl.png}

    @see wxDirDialog, wxFileDirPickerEvent
*/
class wxDirPickerCtrl : public wxPickerBase
{
public:
    /**
        Initializes the object and calls Create() with
        all the parameters.
    */
    wxDirPickerCtrl(wxWindow* parent, wxWindowID id,
                    const wxString& path = wxEmptyString,
                    const wxString& message = "Select a folder",
                    const wxPoint& pos = wxDefaultPosition,
                    const wxSize& size = wxDefaultSize,
                    long style = wxDIRP_DEFAULT_STYLE,
                    const wxValidator& validator = wxDefaultValidator,
                    const wxString& name = "dirpickerctrl");

    /**
        @param parent
            Parent window, must not be non-@NULL.
        @param id
            The identifier for the control.
        @param path
            The initial directory shown in the control. Must be a valid path to a
        directory or the empty string.
        @param message
            The message shown to the user in the wxDirDialog shown by the control.
        @param pos
            Initial position.
        @param size
            Initial size.
        @param style
            The window style, see wxDIRP_* flags.
        @param validator
            Validator which can be used for additional date checks.
        @param name
            Control name.
        
        @returns @true if the control was successfully created or @false if
                 creation failed.
    */
    bool Create(wxWindow* parent, wxWindowID id,
                const wxString& path = wxEmptyString,
                const wxString& message = "Select a folder",
                const wxPoint& pos = wxDefaultPosition,
                const wxSize& size = wxDefaultSize,
                long style = wxDIRP_DEFAULT_STYLE,
                const wxValidator& validator = wxDefaultValidator,
                const wxString& name = "dirpickerctrl");

    /**
        Returns the absolute path of the currently selected directory as a wxFileName
        object.
        This function is equivalent to GetPath()
    */
    wxFileName GetDirName() const;

    /**
        Returns the absolute path of the currently selected directory.
    */
    wxString GetPath() const;

    /**
        Just like SetPath() but this function takes a
        wxFileName object.
    */
    void SetDirName(const wxFileName& dirname);

    /**
        Sets the absolute path of  (the default converter uses current locale's
        charset)the currently selected directory. This must be a valid directory if
        @c wxDIRP_DIR_MUST_EXIST style was given.
    */
    void SetPath(const wxString& dirname);
};



/**
    @class wxFileDirPickerEvent
    @wxheader{filepicker.h}

    This event class is used for the events generated by
    wxFilePickerCtrl and by wxDirPickerCtrl.

    @library{wxcore}
    @category{FIXME}

    @see wxfilepickerctrl()
*/
class wxFileDirPickerEvent : public wxCommandEvent
{
public:
    /**
        The constructor is not normally used by the user code.
    */
    wxFileDirPickerEvent(wxEventType type, wxObject* generator,
                         int id,
                         const wxString path);

    /**
        Retrieve the absolute path of the file/directory the user has just selected.
    */
    wxString GetPath() const;

    /**
        Set the absolute path of the file/directory associated with the event.
    */
    void SetPath(const wxString& path);
};