include/wx/msw/choice.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/msw/choice.h
   3 // Purpose:     wxChoice class
   4 // Author:      Julian Smart
   5 // Modified by: Vadim Zeitlin to derive from wxChoiceBase
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_CHOICE_H_
  13 #define _WX_CHOICE_H_
  14
  15 // ----------------------------------------------------------------------------
  16 // Choice item
  17 // ----------------------------------------------------------------------------
  18
  19 class WXDLLIMPEXP_CORE wxChoice : public wxChoiceBase
  20 {
  21 public:
  22     // ctors
  23     wxChoice() { Init(); }
  24     virtual ~wxChoice();
  25
  26     wxChoice(wxWindow *parent,
  27              wxWindowID id,
  28              const wxPoint& pos = wxDefaultPosition,
  29              const wxSize& size = wxDefaultSize,
  30              int n = 0, const wxString choices[] = NULL,
  31              long style = 0,
  32              const wxValidator& validator = wxDefaultValidator,
  33              const wxString& name = wxChoiceNameStr)
  34     {
  35         Init();
  36         Create(parent, id, pos, size, n, choices, style, validator, name);
  37     }
  38
  39     wxChoice(wxWindow *parent,
  40              wxWindowID id,
  41              const wxPoint& pos,
  42              const wxSize& size,
  43              const wxArrayString& choices,
  44              long style = 0,
  45              const wxValidator& validator = wxDefaultValidator,
  46              const wxString& name = wxChoiceNameStr)
  47     {
  48         Init();
  49         Create(parent, id, pos, size, choices, style, validator, name);
  50     }
  51
  52     bool Create(wxWindow *parent,
  53                 wxWindowID id,
  54                 const wxPoint& pos = wxDefaultPosition,
  55                 const wxSize& size = wxDefaultSize,
  56                 int n = 0, const wxString choices[] = NULL,
  57                 long style = 0,
  58                 const wxValidator& validator = wxDefaultValidator,
  59                 const wxString& name = wxChoiceNameStr);
  60     bool Create(wxWindow *parent,
  61                 wxWindowID id,
  62                 const wxPoint& pos,
  63                 const wxSize& size,
  64                 const wxArrayString& choices,
  65                 long style = 0,
  66                 const wxValidator& validator = wxDefaultValidator,
  67                 const wxString& name = wxChoiceNameStr);
  68
  69     virtual void SetLabel(const wxString& label);
  70
  71     virtual unsigned int GetCount() const;
  72     virtual int GetSelection() const;
  73     virtual int GetCurrentSelection() const;
  74     virtual void SetSelection(int n);
  75
  76     virtual int FindString(const wxString& s, bool bCase = false) const;
  77     virtual wxString GetString(unsigned int n) const;
  78     virtual void SetString(unsigned int n, const wxString& s);
  79
  80     virtual wxVisualAttributes GetDefaultAttributes() const
  81     {
  82         return GetClassDefaultAttributes(GetWindowVariant());
  83     }
  84
  85     static wxVisualAttributes
  86     GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
  87
  88     // MSW only
  89     virtual bool MSWCommand(WXUINT param, WXWORD id);
  90     WXLRESULT MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
  91     virtual WXHBRUSH MSWControlColor(WXHDC hDC, WXHWND hWnd);
  92     virtual bool MSWShouldPreProcessMessage(WXMSG *pMsg);
  93     virtual WXDWORD MSWGetStyle(long style, WXDWORD *exstyle) const;
  94
  95     // returns true if the platform should explicitly apply a theme border
  96     virtual bool CanApplyThemeBorder() const { return false; }
  97
  98 protected:
  99     // choose the default border for this window
 100     virtual wxBorder GetDefaultBorder() const { return wxBORDER_NONE; }
 101
 102     // common part of all ctors
 103     void Init()
 104     {
 105         m_lastAcceptedSelection = wxID_NONE;
 106         m_heightOwn = wxDefaultCoord;
 107     }
 108
 109     virtual void DoDeleteOneItem(unsigned int n);
 110     virtual void DoClear();
 111
 112     virtual int DoInsertItems(const wxArrayStringsAdapter& items,
 113                               unsigned int pos,
 114                               void **clientData, wxClientDataType type);
 115
 116     virtual void DoMoveWindow(int x, int y, int width, int height);
 117     virtual void DoSetItemClientData(unsigned int n, void* clientData);
 118     virtual void* DoGetItemClientData(unsigned int n) const;
 119
 120     // MSW implementation
 121     virtual wxSize DoGetBestSize() const;
 122     virtual void DoGetSize(int *w, int *h) const;
 123     virtual void DoSetSize(int x, int y,
 124                            int width, int height,
 125                            int sizeFlags = wxSIZE_AUTO);
 126
 127     // Show or hide the popup part of the control.
 128     void MSWDoPopupOrDismiss(bool show);
 129
 130     // update the height of the drop down list to fit the number of items we
 131     // have (without changing the visible height)
 132     void MSWUpdateDropDownHeight();
 133
 134     // set the height of the visible part of the control to m_heightOwn
 135     void MSWUpdateVisibleHeight();
 136
 137     // create and initialize the control
 138     bool CreateAndInit(wxWindow *parent, wxWindowID id,
 139                        const wxPoint& pos,
 140                        const wxSize& size,
 141                        int n, const wxString choices[],
 142                        long style,
 143                        const wxValidator& validator,
 144                        const wxString& name);
 145
 146     // free all memory we have (used by Clear() and dtor)
 147     void Free();
 148
 149     // set the height for simple combo box
 150     int SetHeightSimpleComboBox(int nItems) const;
 151
 152 #if wxUSE_DEFERRED_SIZING
 153     virtual void MSWEndDeferWindowPos();
 154 #endif // wxUSE_DEFERRED_SIZING
 155
 156     // last "completed" selection, i.e. not the transient one while the user is
 157     // browsing the popup list: this is only used when != wxID_NONE which is
 158     // the case while the drop down is opened
 159     int m_lastAcceptedSelection;
 160
 161     // the height of the control itself if it was set explicitly or
 162     // wxDefaultCoord if it hadn't
 163     int m_heightOwn;
 164
 165     DECLARE_DYNAMIC_CLASS_NO_COPY(wxChoice)
 166 };
 167
 168 #endif // _WX_CHOICE_H_