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 license
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_POPUPWIN_H_BASE_
  13 #define _WX_POPUPWIN_H_BASE_
  14
  15 #ifdef __GNUG__
  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
  50
  51 // include the real class declaration
  52 #ifdef __WXMSW__
  53     #include "wx/msw/popupwin.h"
  54 #elif __WXPM__
  55     #include "wx/os2/popupwin.h"
  56 #elif __WXGTK__
  57     #include "wx/gtk/popupwin.h"
  58 #elif __WXX11__
  59     #include "wx/x11/popupwin.h"
  60 #elif __WXMGL__
  61     #include "wx/mgl/popupwin.h"
  62 #else
  63     #error "wxPopupWindow is not supported under this platform."
  64 #endif
  65
  66 // ----------------------------------------------------------------------------
  67 // wxPopupTransientWindow: a wxPopupWindow which disappears automatically
  68 // when the user clicks mouse outside it or if it loses focus in any other way
  69 // ----------------------------------------------------------------------------
  70
  71 class WXDLLEXPORT wxPopupWindowHandler;
  72 class WXDLLEXPORT wxPopupFocusHandler;
  73
  74 class WXDLLEXPORT wxPopupTransientWindow : public wxPopupWindow
  75 {
  76 public:
  77     // ctors
  78     wxPopupTransientWindow() { Init(); }
  79     wxPopupTransientWindow(wxWindow *parent, int style = wxBORDER_NONE);
  80
  81     virtual ~wxPopupTransientWindow();
  82
  83     // popup the window (this will show it too) and keep focus at winFocus
  84     // (or itself if it's NULL), dismiss the popup if we lose focus
  85     virtual void Popup(wxWindow *focus = NULL);
  86
  87     // hide the window
  88     virtual void Dismiss();
  89
  90     // can the window be dismissed now?
  91     //
  92     // VZ: where is this used??
  93     virtual bool CanDismiss()
  94         { return TRUE; }
  95
  96     // called when a mouse is pressed while the popup is shown: return TRUE
  97     // from here to prevent its normal processing by the popup (which consists
  98     // in dismissing it if the mouse is cilcked outside it)
  99     virtual bool ProcessLeftDown(wxMouseEvent& event);
 100
 101 protected:
 102     // common part of all ctors
 103     void Init();
 104
 105     // this is called when the popup is disappeared because of anything
 106     // else but direct call to Dismiss()
 107     virtual void OnDismiss();
 108
 109     // dismiss and notify the derived class
 110     void DismissAndNotify();
 111
 112     // remove our event handlers
 113     void PopHandlers();
 114
 115     // the child of this popup if any
 116     wxWindow *m_child;
 117
 118     // the window which has the focus while we're shown
 119     wxWindow *m_focus;
 120
 121     // these classes may call our DismissAndNotify()
 122     friend class wxPopupWindowHandler;
 123     friend class wxPopupFocusHandler;
 124
 125     // the handlers we created, may be NULL (if not, must be deleted)
 126     wxPopupWindowHandler *m_handlerPopup;
 127     wxPopupFocusHandler  *m_handlerFocus;
 128
 129     DECLARE_DYNAMIC_CLASS(wxPopupTransientWindow)
 130 };
 131
 132 #if wxUSE_COMBOBOX && defined(__WXUNIVERSAL__)
 133
 134 // ----------------------------------------------------------------------------
 135 // wxPopupComboWindow: wxPopupTransientWindow used by wxComboBox
 136 // ----------------------------------------------------------------------------
 137
 138 class WXDLLEXPORT wxComboBox;
 139 class WXDLLEXPORT wxComboControl;
 140
 141 class WXDLLEXPORT wxPopupComboWindow : public wxPopupTransientWindow
 142 {
 143 public:
 144     wxPopupComboWindow() { m_combo = NULL; }
 145     wxPopupComboWindow(wxComboControl *parent);
 146
 147     bool Create(wxComboControl *parent);
 148
 149     // position the window correctly relatively to the combo
 150     void PositionNearCombo();
 151
 152 protected:
 153     // notify the combo here
 154     virtual void OnDismiss();
 155
 156     // forward the key presses to the combobox
 157     void OnKeyDown(wxKeyEvent& event);
 158
 159     // the parent combobox
 160     wxComboControl *m_combo;
 161
 162     DECLARE_EVENT_TABLE()
 163     DECLARE_DYNAMIC_CLASS(wxPopupComboWindow)
 164 };
 165
 166 #endif // wxUSE_COMBOBOX && defined(__WXUNIVERSAL__)
 167
 168 #endif // wxUSE_POPUPWIN
 169
 170 #endif // _WX_POPUPWIN_H_BASE_
 171