include/wx/generic/caret.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        generic/caret.h
   3 // Purpose:     generic wxCaret class
   4 // Author:      Vadim Zeitlin (original code by Robert Roebling)
   5 // Modified by:
   6 // Created:     25.05.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWidgets team
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_CARET_H_
  13 #define _WX_CARET_H_
  14
  15 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  16 #pragma interface "caret.h"
  17 #endif
  18
  19 #include "wx/timer.h"
  20
  21 class wxCaret;
  22
  23 class WXDLLEXPORT wxCaretTimer : public wxTimer
  24 {
  25 public:
  26     wxCaretTimer(wxCaret *caret);
  27     virtual void Notify();
  28
  29 private:
  30     wxCaret *m_caret;
  31 };
  32
  33 class wxCaret : public wxCaretBase
  34 {
  35 public:
  36     // ctors
  37     // -----
  38         // default - use Create()
  39     wxCaret() : m_timer(this) { InitGeneric(); }
  40         // creates a block caret associated with the given window
  41     wxCaret(wxWindowBase *window, int width, int height)
  42         : wxCaretBase(window, width, height), m_timer(this) { InitGeneric(); }
  43     wxCaret(wxWindowBase *window, const wxSize& size)
  44         : wxCaretBase(window, size), m_timer(this) { InitGeneric(); }
  45
  46     virtual ~wxCaret();
  47
  48     // implementation
  49     // --------------
  50
  51     // called by wxWindow (not using the event tables)
  52     virtual void OnSetFocus();
  53     virtual void OnKillFocus();
  54
  55     // called by wxCaretTimer
  56     void OnTimer();
  57
  58 protected:
  59     virtual void DoShow();
  60     virtual void DoHide();
  61     virtual void DoMove();
  62
  63     // blink the caret once
  64     void Blink();
  65
  66     // refresh the caret
  67     void Refresh();
  68
  69     // draw the caret on the given DC
  70     void DoDraw(wxDC *dc);
  71
  72 private:
  73     // GTK specific initialization
  74     void InitGeneric();
  75
  76     // the bitmap holding the part of window hidden by the caret when it was
  77     // at (m_xOld, m_yOld)
  78     wxBitmap      m_bmpUnderCaret;
  79     int           m_xOld,
  80                   m_yOld;
  81
  82     wxCaretTimer  m_timer;
  83     bool          m_blinkedOut,     // TRUE => caret hidden right now
  84                   m_hasFocus;       // TRUE => our window has focus
  85 };
  86
  87 #endif // _WX_CARET_H_