include/wx/msw/control.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        control.h
   3 // Purpose:     wxControl class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_CONTROL_H_
  13 #define _WX_CONTROL_H_
  14
  15 #ifdef __GNUG__
  16     #pragma interface "control.h"
  17 #endif
  18
  19 // General item class
  20 class WXDLLEXPORT wxControl : public wxControlBase
  21 {
  22     DECLARE_ABSTRACT_CLASS(wxControl)
  23
  24 public:
  25    wxControl();
  26    virtual ~wxControl();
  27
  28    // Simulates an event
  29    virtual void Command(wxCommandEvent& event) { ProcessCommand(event); }
  30
  31    // implementation from now on
  32    // --------------------------
  33
  34    // Calls the callback and appropriate event handlers
  35    bool ProcessCommand(wxCommandEvent& event);
  36
  37    // MSW-specific
  38 #ifdef __WIN95__
  39    virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
  40 #endif // Win95
  41
  42    // For ownerdraw items
  43    virtual bool MSWOnDraw(WXDRAWITEMSTRUCT *WXUNUSED(item)) { return FALSE; };
  44    virtual bool MSWOnMeasure(WXMEASUREITEMSTRUCT *WXUNUSED(item)) { return FALSE; };
  45
  46    wxArrayLong GetSubcontrols() { return m_subControls; }
  47
  48    void OnEraseBackground(wxEraseEvent& event);
  49
  50    virtual WXHBRUSH OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
  51                                WXUINT message, WXWPARAM wParam, WXLPARAM lParam);
  52
  53 #if WXWIN_COMPATIBILITY
  54    virtual void SetButtonColour(const wxColour& WXUNUSED(col)) { }
  55    wxColour* GetButtonColour() const { return NULL; }
  56
  57    inline virtual void SetLabelFont(const wxFont& font);
  58    inline virtual void SetButtonFont(const wxFont& font);
  59    inline wxFont& GetLabelFont() const;
  60    inline wxFont& GetButtonFont() const;
  61
  62    // Adds callback
  63    inline void Callback(const wxFunction function);
  64
  65    wxFunction GetCallback() { return m_callback; }
  66
  67 protected:
  68    wxFunction       m_callback;     // Callback associated with the window
  69 #endif // WXWIN_COMPATIBILITY
  70
  71 protected:
  72    // for controls like radiobuttons which are really composite this array
  73    // holds the ids (not HWNDs!) of the sub controls
  74    wxArrayLong m_subControls;
  75
  76    virtual wxSize DoGetBestSize() const;
  77
  78    // create the control of the given class with the given style, returns FALSE
  79    // if creation failed
  80    //
  81    // All parameters except classname and style are optional, if the
  82    // size/position are not given, they should be set later with SetSize() and,
  83    // label (the title of the window), of course, is left empty. The extended
  84    // style is determined from the style and the app 3D settings automatically
  85    // if it's not specified explicitly.
  86    bool MSWCreateControl(const wxChar *classname,
  87                          WXDWORD style,
  88                          const wxPoint& pos = wxDefaultPosition,
  89                          const wxSize& size = wxDefaultSize,
  90                          const wxString& label = wxEmptyString,
  91                          WXDWORD exstyle = (WXDWORD)-1);
  92
  93    // determine the extended styles combination for this window (may slightly
  94    // modify style parameter, this is why it's non const)
  95    WXDWORD GetExStyle(WXDWORD& style, bool *want3D) const;
  96
  97 private:
  98    DECLARE_EVENT_TABLE()
  99 };
 100
 101
 102 #if WXWIN_COMPATIBILITY
 103     inline void wxControl::Callback(const wxFunction f) { m_callback = f; };
 104     inline wxFont& wxControl::GetLabelFont() const { return GetFont(); }
 105     inline wxFont& wxControl::GetButtonFont() const { return GetFont(); }
 106     inline void wxControl::SetLabelFont(const wxFont& font) { SetFont(font); }
 107     inline void wxControl::SetButtonFont(const wxFont& font) { SetFont(font); }
 108 #endif // WXWIN_COMPATIBILITY
 109
 110 #endif
 111     // _WX_CONTROL_H_