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 IMPLEMENT_DYNAMIC_CLASS(wxTopLevelWindow, wxWindow)
  49
  50 // ----------------------------------------------------------------------------
  51 // construction/destruction
  52 // ----------------------------------------------------------------------------
  53
  54 wxTopLevelWindowBase::wxTopLevelWindowBase()
  55 {
  56 }
  57
  58 bool wxTopLevelWindowBase::Destroy()
  59 {
  60     // delayed destruction: the frame will be deleted during the next idle
  61     // loop iteration
  62     if ( !wxPendingDelete.Member(this) )
  63         wxPendingDelete.Append(this);
  64
  65     return TRUE;
  66 }
  67
  68 // ----------------------------------------------------------------------------
  69 // wxTopLevelWindow size management: we exclude the areas taken by
  70 // menu/status/toolbars from the client area, so the client area is what's
  71 // really available for the frame contents
  72 // ----------------------------------------------------------------------------
  73
  74 void wxTopLevelWindowBase::DoScreenToClient(int *x, int *y) const
  75 {
  76     wxWindow::DoScreenToClient(x, y);
  77
  78     // translate the wxWindow client coords to our client coords
  79     wxPoint pt(GetClientAreaOrigin());
  80     if ( x )
  81         *x -= pt.x;
  82     if ( y )
  83         *y -= pt.y;
  84 }
  85
  86 void wxTopLevelWindowBase::DoClientToScreen(int *x, int *y) const
  87 {
  88     // our client area origin (0, 0) may be really something like (0, 30) for
  89     // wxWindow if we have a toolbar, account for it before translating
  90     wxPoint pt(GetClientAreaOrigin());
  91     if ( x )
  92         *x += pt.x;
  93     if ( y )
  94         *y += pt.y;
  95
  96     wxWindow::DoClientToScreen(x, y);
  97 }
  98
  99
 100 // ----------------------------------------------------------------------------
 101 // event handlers
 102 // ----------------------------------------------------------------------------
 103
 104 // default resizing behaviour - if only ONE subwindow, resize to fill the
 105 // whole client area
 106 void wxTopLevelWindowBase::OnSize(wxSizeEvent& WXUNUSED(event))
 107 {
 108     // if we're using constraints - do use them
 109 #if wxUSE_CONSTRAINTS
 110     if ( GetAutoLayout() )
 111     {
 112         Layout();
 113     }
 114     else
 115 #endif // wxUSE_CONSTRAINTS
 116     {
 117         // do we have _exactly_ one child?
 118         wxWindow *child = (wxWindow *)NULL;
 119         for ( wxWindowList::Node *node = GetChildren().GetFirst();
 120               node;
 121               node = node->GetNext() )
 122         {
 123             wxWindow *win = node->GetData();
 124
 125             // exclude top level and managed windows (status bar isn't
 126             // currently in the children list except under wxMac anyhow, but
 127             // it makes no harm to test for it)
 128             if ( !win->IsTopLevel() && !IsOneOfBars(win) )
 129             {
 130                 if ( child )
 131                 {
 132                     return;     // it's our second subwindow - nothing to do
 133                 }
 134
 135                 child = win;
 136             }
 137         }
 138
 139         // do we have any children at all?
 140         if ( child )
 141         {
 142             // exactly one child - set it's size to fill the whole frame
 143             int clientW, clientH;
 144             DoGetClientSize(&clientW, &clientH);
 145
 146             // for whatever reasons, wxGTK wants to have a small offset - it
 147             // probably looks better with it?
 148 #ifdef __WXGTK__
 149             static const int ofs = 1;
 150 #else
 151             static const int ofs = 0;
 152 #endif
 153
 154             child->SetSize(ofs, ofs, clientW - 2*ofs, clientH - 2*ofs);
 155         }
 156     }
 157 }
 158
 159 // The default implementation for the close window event.
 160 void wxTopLevelWindowBase::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
 161 {
 162     Destroy();
 163 }
 164
 165 bool wxTopLevelWindowBase::SendIconizeEvent(bool iconized)
 166 {
 167     wxIconizeEvent event(GetId(), iconized);
 168     event.SetEventObject(this);
 169
 170     return GetEventHandler()->ProcessEvent(event);
 171 }
 172