include/wx/popupwin.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/popupwin.h
   3 // Purpose:     wxPopupWindow interface declaration
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     06.01.01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2001 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // License:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_POPUPWIN_H_BASE_
  13 #define _WX_POPUPWIN_H_BASE_
  14
  15 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  16     #pragma interface "popupwinbase.h"
  17 #endif
  18
  19 #include "wx/window.h"
  20
  21 #if wxUSE_POPUPWIN
  22 // ----------------------------------------------------------------------------
  23 // wxPopupWindow: a special kind of top level window used for popup menus,
  24 // combobox popups and such.
  25 // ----------------------------------------------------------------------------
  26
  27 class WXDLLEXPORT wxPopupWindowBase : public wxWindow
  28 {
  29 public:
  30     wxPopupWindowBase() { }
  31     virtual ~wxPopupWindowBase();
  32
  33     // create the popup window
  34     //
  35     // style may only contain border flags
  36     bool Create(wxWindow *parent, int style = wxBORDER_NONE);
  37
  38     // move the popup window to the right position, i.e. such that it is
  39     // entirely visible
  40     //
  41     // the popup is positioned at ptOrigin + size if it opens below and to the
  42     // right (default), at ptOrigin - sizePopup if it opens above and to the
  43     // left &c
  44     //
  45     // the point must be given in screen coordinates!
  46     virtual void Position(const wxPoint& ptOrigin,
  47                           const wxSize& size);
  48
  49     DECLARE_NO_COPY_CLASS(wxPopupWindowBase)
  50 };
  51
  52
  53 // include the real class declaration
  54 #ifdef __WXMSW__
  55     #include "wx/msw/popupwin.h"
  56 #elif __WXPM__
  57     #include "wx/os2/popupwin.h"
  58 #elif __WXGTK__
  59     #include "wx/gtk/popupwin.h"
  60 #elif __WXX11__
  61     #include "wx/x11/popupwin.h"
  62 #elif __WXMGL__
  63     #include "wx/mgl/popupwin.h"
  64 #else
  65     #error "wxPopupWindow is not supported under this platform."
  66 #endif
  67
  68 // ----------------------------------------------------------------------------
  69 // wxPopupTransientWindow: a wxPopupWindow which disappears automatically
  70 // when the user clicks mouse outside it or if it loses focus in any other way
  71 // ----------------------------------------------------------------------------
  72
  73 class WXDLLEXPORT wxPopupWindowHandler;
  74 class WXDLLEXPORT wxPopupFocusHandler;
  75
  76 class WXDLLEXPORT wxPopupTransientWindow : public wxPopupWindow
  77 {
  78 public:
  79     // ctors
  80     wxPopupTransientWindow() { Init(); }
  81     wxPopupTransientWindow(wxWindow *parent, int style = wxBORDER_NONE);
  82
  83     virtual ~wxPopupTransientWindow();
  84
  85     // popup the window (this will show it too) and keep focus at winFocus
  86     // (or itself if it's NULL), dismiss the popup if we lose focus
  87     virtual void Popup(wxWindow *focus = NULL);
  88
  89     // hide the window
  90     virtual void Dismiss();
  91
  92     // can the window be dismissed now?
  93     //
  94     // VZ: where is this used??
  95     virtual bool CanDismiss()
  96         { return TRUE; }
  97
  98     // called when a mouse is pressed while the popup is shown: return TRUE
  99     // from here to prevent its normal processing by the popup (which consists
 100     // in dismissing it if the mouse is cilcked outside it)
 101     virtual bool ProcessLeftDown(wxMouseEvent& event);
 102
 103 protected:
 104     // common part of all ctors
 105     void Init();
 106
 107     // this is called when the popup is disappeared because of anything
 108     // else but direct call to Dismiss()
 109     virtual void OnDismiss();
 110
 111     // dismiss and notify the derived class
 112     void DismissAndNotify();
 113
 114     // remove our event handlers
 115     void PopHandlers();
 116
 117     // the child of this popup if any
 118     wxWindow *m_child;
 119
 120     // the window which has the focus while we're shown
 121     wxWindow *m_focus;
 122
 123     // these classes may call our DismissAndNotify()
 124     friend class wxPopupWindowHandler;
 125     friend class wxPopupFocusHandler;
 126
 127     // the handlers we created, may be NULL (if not, must be deleted)
 128     wxPopupWindowHandler *m_handlerPopup;
 129     wxPopupFocusHandler  *m_handlerFocus;
 130
 131     DECLARE_DYNAMIC_CLASS(wxPopupTransientWindow)
 132     DECLARE_NO_COPY_CLASS(wxPopupTransientWindow)
 133 };
 134
 135 #if wxUSE_COMBOBOX && defined(__WXUNIVERSAL__)
 136
 137 // ----------------------------------------------------------------------------
 138 // wxPopupComboWindow: wxPopupTransientWindow used by wxComboBox
 139 // ----------------------------------------------------------------------------
 140
 141 class WXDLLEXPORT wxComboBox;
 142 class WXDLLEXPORT wxComboControl;
 143
 144 class WXDLLEXPORT wxPopupComboWindow : public wxPopupTransientWindow
 145 {
 146 public:
 147     wxPopupComboWindow() { m_combo = NULL; }
 148     wxPopupComboWindow(wxComboControl *parent);
 149
 150     bool Create(wxComboControl *parent);
 151
 152     // position the window correctly relatively to the combo
 153     void PositionNearCombo();
 154
 155 protected:
 156     // notify the combo here
 157     virtual void OnDismiss();
 158
 159     // forward the key presses to the combobox
 160     void OnKeyDown(wxKeyEvent& event);
 161
 162     // the parent combobox
 163     wxComboControl *m_combo;
 164
 165     DECLARE_EVENT_TABLE()
 166     DECLARE_DYNAMIC_CLASS(wxPopupComboWindow)
 167 };
 168
 169 #endif // wxUSE_COMBOBOX && defined(__WXUNIVERSAL__)
 170
 171 #endif // wxUSE_POPUPWIN
 172
 173 #endif // _WX_POPUPWIN_H_BASE_
 174