include/wx/univ/inphand.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/univ/inphand.h
   3 // Purpose:     wxInputHandler class maps the keyboard and mouse events to the
   4 //              actions which then are performed by the control
   5 // Author:      Vadim Zeitlin
   6 // Modified by:
   7 // Created:     18.08.00
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) 2000 SciTech Software, Inc. (www.scitechsoft.com)
  10 // Licence:     wxWindows licence
  11 ///////////////////////////////////////////////////////////////////////////////
  12
  13 #ifndef _WX_UNIV_INPHAND_H_
  14 #define _WX_UNIV_INPHAND_H_
  15
  16 #include "wx/univ/inpcons.h"         // for wxControlAction(s)
  17
  18 // ----------------------------------------------------------------------------
  19 // types of the standard input handlers which can be passed to
  20 // wxTheme::GetInputHandler()
  21 // ----------------------------------------------------------------------------
  22
  23 #define wxINP_HANDLER_DEFAULT           _T("")
  24 #define wxINP_HANDLER_BUTTON            _T("button")
  25 #define wxINP_HANDLER_CHECKBOX          _T("checkbox")
  26 #define wxINP_HANDLER_CHECKLISTBOX      _T("checklistbox")
  27 #define wxINP_HANDLER_COMBOBOX          _T("combobox")
  28 #define wxINP_HANDLER_LISTBOX           _T("listbox")
  29 #define wxINP_HANDLER_NOTEBOOK          _T("notebook")
  30 #define wxINP_HANDLER_RADIOBTN          _T("radiobtn")
  31 #define wxINP_HANDLER_SCROLLBAR         _T("scrollbar")
  32 #define wxINP_HANDLER_SLIDER            _T("slider")
  33 #define wxINP_HANDLER_SPINBTN           _T("spinbtn")
  34 #define wxINP_HANDLER_STATUSBAR         _T("statusbar")
  35 #define wxINP_HANDLER_TEXTCTRL          _T("textctrl")
  36 #define wxINP_HANDLER_TOOLBAR           _T("toolbar")
  37 #define wxINP_HANDLER_TOPLEVEL          _T("toplevel")
  38
  39 // ----------------------------------------------------------------------------
  40 // wxInputHandler: maps the events to the actions
  41 // ----------------------------------------------------------------------------
  42
  43 class WXDLLIMPEXP_CORE wxInputHandler : public wxObject
  44 {
  45 public:
  46     // map a keyboard event to one or more actions (pressed == true if the key
  47     // was pressed, false if released), returns true if something was done
  48     virtual bool HandleKey(wxInputConsumer *consumer,
  49                            const wxKeyEvent& event,
  50                            bool pressed) = 0;
  51
  52     // map a mouse (click) event to one or more actions
  53     virtual bool HandleMouse(wxInputConsumer *consumer,
  54                              const wxMouseEvent& event) = 0;
  55
  56     // handle mouse movement (or enter/leave) event: it is separated from
  57     // HandleMouse() for convenience as many controls don't care about mouse
  58     // movements at all
  59     virtual bool HandleMouseMove(wxInputConsumer *consumer,
  60                                  const wxMouseEvent& event);
  61
  62     // do something with focus set/kill event: this is different from
  63     // HandleMouseMove() as the mouse maybe over the control without it having
  64     // focus
  65     //
  66     // return true to refresh the control, false otherwise
  67     virtual bool HandleFocus(wxInputConsumer *consumer, const wxFocusEvent& event);
  68
  69     // react to the app getting/losing activation
  70     //
  71     // return true to refresh the control, false otherwise
  72     virtual bool HandleActivation(wxInputConsumer *consumer, bool activated);
  73
  74     // virtual dtor for any base class
  75     virtual ~wxInputHandler();
  76 };
  77
  78 // ----------------------------------------------------------------------------
  79 // wxStdInputHandler is just a base class for all other "standard" handlers
  80 // and also provides the way to chain input handlers together
  81 // ----------------------------------------------------------------------------
  82
  83 class WXDLLIMPEXP_CORE wxStdInputHandler : public wxInputHandler
  84 {
  85 public:
  86     wxStdInputHandler(wxInputHandler *handler) : m_handler(handler) { }
  87
  88     virtual bool HandleKey(wxInputConsumer *consumer,
  89                            const wxKeyEvent& event,
  90                            bool pressed)
  91     {
  92         return m_handler ? m_handler->HandleKey(consumer, event, pressed)
  93                          : false;
  94     }
  95
  96     virtual bool HandleMouse(wxInputConsumer *consumer,
  97                              const wxMouseEvent& event)
  98     {
  99         return m_handler ? m_handler->HandleMouse(consumer, event) : false;
 100     }
 101
 102     virtual bool HandleMouseMove(wxInputConsumer *consumer, const wxMouseEvent& event)
 103     {
 104         return m_handler ? m_handler->HandleMouseMove(consumer, event) : false;
 105     }
 106
 107     virtual bool HandleFocus(wxInputConsumer *consumer, const wxFocusEvent& event)
 108     {
 109         return m_handler ? m_handler->HandleFocus(consumer, event) : false;
 110     }
 111
 112 private:
 113     wxInputHandler *m_handler;
 114 };
 115
 116 #endif // _WX_UNIV_INPHAND_H_