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    wxList& GetSubcontrols() { return m_subControls; }
  47
  48    void OnEraseBackground(wxEraseEvent& event);
  49
  50 #if WXWIN_COMPATIBILITY
  51    virtual void SetButtonColour(const wxColour& WXUNUSED(col)) { }
  52    wxColour* GetButtonColour() const { return NULL; }
  53
  54    inline virtual void SetLabelFont(const wxFont& font);
  55    inline virtual void SetButtonFont(const wxFont& font);
  56    inline wxFont& GetLabelFont() const;
  57    inline wxFont& GetButtonFont() const;
  58
  59    // Adds callback
  60    inline void Callback(const wxFunction function);
  61
  62    wxFunction GetCallback() { return m_callback; }
  63
  64 protected:
  65    wxFunction       m_callback;     // Callback associated with the window
  66 #endif // WXWIN_COMPATIBILITY
  67
  68 protected:
  69    // For controls like radiobuttons which are really composite
  70    wxList m_subControls;
  71
  72    virtual wxSize DoGetBestSize() const;
  73
  74    // create the control of the given class with the given style, returns FALSE
  75    // if creation failed
  76    //
  77    // All parameters except classname and style are optional, if the
  78    // size/position are not given, they should be set later with SetSize() and,
  79    // label (the title of the window), of course, is left empty. The extended
  80    // style is determined from the style and the app 3D settings automatically
  81    // if it's not specified explicitly.
  82    bool MSWCreateControl(const wxChar *classname,
  83                          WXDWORD style,
  84                          const wxPoint& pos = wxDefaultPosition,
  85                          const wxSize& size = wxDefaultSize,
  86                          const wxString& label = wxEmptyString,
  87                          WXDWORD exstyle = (WXDWORD)-1);
  88
  89    // determine the extended styles combination for this window (may slightly
  90    // modify style parameter, this is why it's non const)
  91    WXDWORD GetExStyle(WXDWORD& style, bool *want3D) const;
  92
  93 private:
  94    DECLARE_EVENT_TABLE()
  95 };
  96
  97
  98 #if WXWIN_COMPATIBILITY
  99     inline void wxControl::Callback(const wxFunction f) { m_callback = f; };
 100     inline wxFont& wxControl::GetLabelFont() const { return GetFont(); }
 101     inline wxFont& wxControl::GetButtonFont() const { return GetFont(); }
 102     inline void wxControl::SetLabelFont(const wxFont& font) { SetFont(font); }
 103     inline void wxControl::SetButtonFont(const wxFont& font) { SetFont(font); }
 104 #endif // WXWIN_COMPATIBILITY
 105
 106 #endif
 107     // _WX_CONTROL_H_