New scrolling code.

[wxWidgets.git] / include / wx / msw / listbox.h

/////////////////////////////////////////////////////////////////////////////
// Name:        listbox.h
// Purpose:     wxListBox class
// Author:      Julian Smart
// Modified by:
// Created:     01/02/97
// RCS-ID:      $Id$
// Copyright:   (c) Julian Smart
// Licence:   	wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifndef _WX_LISTBOX_H_
#define _WX_LISTBOX_H_

#ifdef __GNUG__
#pragma interface "listbox.h"
#endif

#include "wx/control.h"

WXDLLEXPORT_DATA(extern const wxChar*) wxListBoxNameStr;

#if wxUSE_OWNER_DRAWN
  class WXDLLEXPORT wxOwnerDrawn;

  // define the array of list box items
  #include  <wx/dynarray.h>

  WX_DEFINE_ARRAY(wxOwnerDrawn *, wxListBoxItemsArray);

#endif

// forward decl for GetSelections()
class wxArrayInt;

WXDLLEXPORT_DATA(extern const wxChar*) wxEmptyString;

// List box item
class WXDLLEXPORT wxListBox : public wxControl
{
    DECLARE_DYNAMIC_CLASS(wxListBox)

public:
    wxListBox();
    wxListBox(wxWindow *parent, wxWindowID id,
            const wxPoint& pos = wxDefaultPosition,
            const wxSize& size = wxDefaultSize,
            int n = 0, const wxString choices[] = NULL,
            long style = 0,
            const wxValidator& validator = wxDefaultValidator,
            const wxString& name = wxListBoxNameStr)
    {
        Create(parent, id, pos, size, n, choices, style, validator, name);
    }

    bool Create(wxWindow *parent, wxWindowID id,
            const wxPoint& pos = wxDefaultPosition,
            const wxSize& size = wxDefaultSize,
            int n = 0, const wxString choices[] = NULL,
            long style = 0,
            const wxValidator& validator = wxDefaultValidator,
            const wxString& name = wxListBoxNameStr);

    ~wxListBox();

    bool MSWCommand(WXUINT param, WXWORD id);

#if wxUSE_OWNER_DRAWN
    bool MSWOnMeasure(WXMEASUREITEMSTRUCT *item);
    bool MSWOnDraw(WXDRAWITEMSTRUCT *item);

    // plug-in for derived classes
    virtual wxOwnerDrawn *CreateItem(size_t n);

    // allows to get the item and use SetXXX functions to set it's appearance
    wxOwnerDrawn *GetItem(size_t n) const { return m_aItems[n]; }

    // get the index of the given item
    int GetItemIndex(wxOwnerDrawn *item) const { return m_aItems.Index(item); }
#endif // wxUSE_OWNER_DRAWN

    virtual void Append(const wxString& item);
    virtual void Append(const wxString& item, void *clientData);
    virtual void Set(int n, const wxString* choices, void **clientData = NULL);
    virtual int FindString(const wxString& s) const ;
    virtual void Clear();
    virtual void SetSelection(int n, bool select = TRUE);

    virtual void Deselect(int n);

    // For single choice list item only
    virtual int GetSelection() const ;
    virtual void Delete(int n);
    virtual void *GetClientData(int n) const ;
    virtual void SetClientData(int n, void *clientData);
    virtual void SetString(int n, const wxString& s);

    // For single or multiple choice list item
    virtual int GetSelections(wxArrayInt& aSelections) const;
    virtual bool Selected(int n) const ;
    virtual wxString GetString(int n) const ;

    // Set the specified item at the first visible item
    // or scroll to max range.
    virtual void SetFirstItem(int n) ;
    virtual void SetFirstItem(const wxString& s) ;

    virtual void InsertItems(int nItems, const wxString items[], int pos);

    virtual wxString GetStringSelection() const ;
    virtual bool SetStringSelection(const wxString& s, bool flag = TRUE);
    virtual int Number() const ;

    void Command(wxCommandEvent& event);

    // Windows-specific code to set the horizontal extent of
    // the listbox, if necessary. If s is non-NULL, it's
    // used to calculate the horizontal extent.
    // Otherwise, all strings are used.
    virtual void SetHorizontalExtent(const wxString& s = wxEmptyString);

    virtual WXHBRUSH OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
            WXUINT message, WXWPARAM wParam, WXLPARAM lParam);

    virtual long MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
    virtual void SetupColours();

protected:
    int m_noItems;
    int m_selected;

    virtual wxSize DoGetBestSize();

#if wxUSE_OWNER_DRAWN
    // control items
    wxListBoxItemsArray m_aItems;
#endif
};

#endif
    // _WX_LISTBOX_H_