src/common/toplvcmn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        common/toplvcmn.cpp
   3 // Purpose:     common (for all platforms) wxTopLevelWindow functions
   4 // Author:      Julian Smart, Vadim Zeitlin
   5 // Created:     01/02/97
   6 // Id:          $Id$
   7 // Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // ============================================================================
  12 // declarations
  13 // ============================================================================
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 #ifdef __GNUG__
  20     #pragma implementation "toplevelbase.h"
  21 #endif
  22
  23 // For compilers that support precompilation, includes "wx.h".
  24 #include "wx/wxprec.h"
  25
  26 #ifdef __BORLANDC__
  27     #pragma hdrstop
  28 #endif
  29
  30 #ifndef WX_PRECOMP
  31     #include "wx/toplevel.h"
  32     #include "wx/dcclient.h"
  33 #endif // WX_PRECOMP
  34
  35 // ----------------------------------------------------------------------------
  36 // event table
  37 // ----------------------------------------------------------------------------
  38
  39 BEGIN_EVENT_TABLE(wxTopLevelWindowBase, wxWindow)
  40     EVT_CLOSE(wxTopLevelWindowBase::OnCloseWindow)
  41     EVT_SIZE(wxTopLevelWindowBase::OnSize)
  42 END_EVENT_TABLE()
  43
  44 // ============================================================================
  45 // implementation
  46 // ============================================================================
  47
  48 // FIXME: some platforms don't have wxTopLevelWindow yet
  49 #ifdef wxTopLevelWindowNative
  50     IMPLEMENT_DYNAMIC_CLASS(wxTopLevelWindow, wxWindow)
  51 #endif
  52
  53 // ----------------------------------------------------------------------------
  54 // construction/destruction
  55 // ----------------------------------------------------------------------------
  56
  57 wxTopLevelWindowBase::wxTopLevelWindowBase()
  58 {
  59 }
  60
  61 wxTopLevelWindowBase::~wxTopLevelWindowBase()
  62 {
  63     // this destructor is required for Darwin
  64 }
  65
  66 bool wxTopLevelWindowBase::Destroy()
  67 {
  68     // delayed destruction: the frame will be deleted during the next idle
  69     // loop iteration
  70     if ( !wxPendingDelete.Member(this) )
  71         wxPendingDelete.Append(this);
  72
  73     return TRUE;
  74 }
  75
  76 // ----------------------------------------------------------------------------
  77 // wxTopLevelWindow size management: we exclude the areas taken by
  78 // menu/status/toolbars from the client area, so the client area is what's
  79 // really available for the frame contents
  80 // ----------------------------------------------------------------------------
  81
  82 void wxTopLevelWindowBase::DoScreenToClient(int *x, int *y) const
  83 {
  84     wxWindow::DoScreenToClient(x, y);
  85
  86     // translate the wxWindow client coords to our client coords
  87     wxPoint pt(GetClientAreaOrigin());
  88     if ( x )
  89         *x -= pt.x;
  90     if ( y )
  91         *y -= pt.y;
  92 }
  93
  94 void wxTopLevelWindowBase::DoClientToScreen(int *x, int *y) const
  95 {
  96     // our client area origin (0, 0) may be really something like (0, 30) for
  97     // wxWindow if we have a toolbar, account for it before translating
  98     wxPoint pt(GetClientAreaOrigin());
  99     if ( x )
 100         *x += pt.x;
 101     if ( y )
 102         *y += pt.y;
 103
 104     wxWindow::DoClientToScreen(x, y);
 105 }
 106
 107
 108 // ----------------------------------------------------------------------------
 109 // event handlers
 110 // ----------------------------------------------------------------------------
 111
 112 // default resizing behaviour - if only ONE subwindow, resize to fill the
 113 // whole client area
 114 void wxTopLevelWindowBase::OnSize(wxSizeEvent& WXUNUSED(event))
 115 {
 116     // if we're using constraints - do use them
 117 #if wxUSE_CONSTRAINTS
 118     if ( GetAutoLayout() )
 119     {
 120         Layout();
 121     }
 122     else
 123 #endif // wxUSE_CONSTRAINTS
 124     {
 125         // do we have _exactly_ one child?
 126         wxWindow *child = (wxWindow *)NULL;
 127         for ( wxWindowList::Node *node = GetChildren().GetFirst();
 128               node;
 129               node = node->GetNext() )
 130         {
 131             wxWindow *win = node->GetData();
 132
 133             // exclude top level and managed windows (status bar isn't
 134             // currently in the children list except under wxMac anyhow, but
 135             // it makes no harm to test for it)
 136             if ( !win->IsTopLevel() && !IsOneOfBars(win) )
 137             {
 138                 if ( child )
 139                 {
 140                     return;     // it's our second subwindow - nothing to do
 141                 }
 142
 143                 child = win;
 144             }
 145         }
 146
 147         // do we have any children at all?
 148         if ( child )
 149         {
 150             // exactly one child - set it's size to fill the whole frame
 151             int clientW, clientH;
 152             DoGetClientSize(&clientW, &clientH);
 153
 154             // for whatever reasons, wxGTK wants to have a small offset - it
 155             // probably looks better with it?
 156 #ifdef __WXGTK__
 157             static const int ofs = 1;
 158 #else
 159             static const int ofs = 0;
 160 #endif
 161
 162             child->SetSize(ofs, ofs, clientW - 2*ofs, clientH - 2*ofs);
 163         }
 164     }
 165 }
 166
 167 // The default implementation for the close window event.
 168 void wxTopLevelWindowBase::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
 169 {
 170     Destroy();
 171 }
 172
 173 bool wxTopLevelWindowBase::SendIconizeEvent(bool iconized)
 174 {
 175     wxIconizeEvent event(GetId(), iconized);
 176     event.SetEventObject(this);
 177
 178     return GetEventHandler()->ProcessEvent(event);
 179 }