include/wx/gtk/button.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/gtk/button.h
   3 // Purpose:     wxGTK wxButton class declaration
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifndef _WX_GTK_BUTTON_H_
  11 #define _WX_GTK_BUTTON_H_
  12
  13 //-----------------------------------------------------------------------------
  14 // wxButton
  15 //-----------------------------------------------------------------------------
  16
  17 class WXDLLIMPEXP_CORE wxButton : public wxButtonBase
  18 {
  19 public:
  20     wxButton() { Init(); }
  21     wxButton(wxWindow *parent, wxWindowID id,
  22            const wxString& label = wxEmptyString,
  23            const wxPoint& pos = wxDefaultPosition,
  24            const wxSize& size = wxDefaultSize, long style = 0,
  25            const wxValidator& validator = wxDefaultValidator,
  26            const wxString& name = wxButtonNameStr)
  27     {
  28         Init();
  29
  30         Create(parent, id, label, pos, size, style, validator, name);
  31     }
  32
  33     bool Create(wxWindow *parent, wxWindowID id,
  34            const wxString& label = wxEmptyString,
  35            const wxPoint& pos = wxDefaultPosition,
  36            const wxSize& size = wxDefaultSize, long style = 0,
  37            const wxValidator& validator = wxDefaultValidator,
  38            const wxString& name = wxButtonNameStr);
  39
  40     virtual wxWindow *SetDefault();
  41     virtual void SetLabel( const wxString &label );
  42     virtual bool Enable( bool enable = true );
  43
  44     // implementation
  45     // --------------
  46
  47     static wxVisualAttributes
  48     GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
  49
  50     // helper to allow access to protected member from GTK callback
  51     void MoveWindow(int x, int y, int width, int height) { DoMoveWindow(x, y, width, height); }
  52
  53     // called from GTK callbacks: they update the button state and call
  54     // GTKUpdateBitmap()
  55     void GTKMouseEnters();
  56     void GTKMouseLeaves();
  57     void GTKPressed();
  58     void GTKReleased();
  59
  60 protected:
  61     virtual wxSize DoGetBestSize() const;
  62     virtual void DoApplyWidgetStyle(GtkRcStyle *style);
  63
  64     virtual GdkWindow *GTKGetWindow(wxArrayGdkWindows& windows) const;
  65
  66     virtual wxBitmap DoGetBitmap(State which) const;
  67     virtual void DoSetBitmap(const wxBitmap& bitmap, State which);
  68     virtual void DoSetBitmapPosition(wxDirection dir);
  69
  70 private:
  71     typedef wxButtonBase base_type;
  72
  73     // common part of all ctors
  74     void Init()
  75     {
  76         m_isCurrent =
  77         m_isPressed = false;
  78     }
  79
  80     // focus event handler: calls GTKUpdateBitmap()
  81     void GTKOnFocus(wxFocusEvent& event);
  82
  83     // update the bitmap to correspond to the current button state
  84     void GTKUpdateBitmap();
  85
  86     // return the current button state from m_isXXX flags (which means that it
  87     // might not correspond to the real current state as e.g. m_isCurrent will
  88     // never be true if we don't have a valid current bitmap)
  89     State GTKGetCurrentState() const;
  90
  91     // show the given bitmap (must be valid)
  92     void GTKDoShowBitmap(const wxBitmap& bitmap);
  93
  94     // the bitmaps for the different state of the buttons, all of them may be
  95     // invalid and the button only shows a bitmap at all if State_Normal bitmap
  96     // is valid
  97     wxBitmap m_bitmaps[State_Max];
  98
  99     // true iff mouse is currently over the button
 100     bool m_isCurrent;
 101
 102     // true iff the button is in pressed state
 103     bool m_isPressed;
 104
 105     DECLARE_DYNAMIC_CLASS(wxButton)
 106 };
 107
 108 #endif // _WX_GTK_BUTTON_H_