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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 wxSize wxTopLevelWindowBase::GetMaxSize() const
77 {
78 wxSize size( GetMaxWidth(), GetMaxHeight() );
79 int w, h;
80
81 wxClientDisplayRect( 0, 0, &w, &h );
82
83 if( size.GetWidth() == -1 )
84 size.SetWidth( w );
85
86 if( size.GetHeight() == -1 )
87 size.SetHeight( h );
88
89 return size;
90 }
91
92 // ----------------------------------------------------------------------------
93 // wxTopLevelWindow size management: we exclude the areas taken by
94 // menu/status/toolbars from the client area, so the client area is what's
95 // really available for the frame contents
96 // ----------------------------------------------------------------------------
97
98 void wxTopLevelWindowBase::DoScreenToClient(int *x, int *y) const
99 {
100 wxWindow::DoScreenToClient(x, y);
101
102 // translate the wxWindow client coords to our client coords
103 wxPoint pt(GetClientAreaOrigin());
104 if ( x )
105 *x -= pt.x;
106 if ( y )
107 *y -= pt.y;
108 }
109
110 void wxTopLevelWindowBase::DoClientToScreen(int *x, int *y) const
111 {
112 // our client area origin (0, 0) may be really something like (0, 30) for
113 // wxWindow if we have a toolbar, account for it before translating
114 wxPoint pt(GetClientAreaOrigin());
115 if ( x )
116 *x += pt.x;
117 if ( y )
118 *y += pt.y;
119
120 wxWindow::DoClientToScreen(x, y);
121 }
122
123
124 // ----------------------------------------------------------------------------
125 // event handlers
126 // ----------------------------------------------------------------------------
127
128 // default resizing behaviour - if only ONE subwindow, resize to fill the
129 // whole client area
130 void wxTopLevelWindowBase::OnSize(wxSizeEvent& WXUNUSED(event))
131 {
132 // if we're using constraints or sizers - do use them
133 if ( GetAutoLayout() )
134 {
135 Layout();
136 }
137 else
138 {
139 // do we have _exactly_ one child?
140 wxWindow *child = (wxWindow *)NULL;
141 for ( wxWindowList::Node *node = GetChildren().GetFirst();
142 node;
143 node = node->GetNext() )
144 {
145 wxWindow *win = node->GetData();
146
147 // exclude top level and managed windows (status bar isn't
148 // currently in the children list except under wxMac anyhow, but
149 // it makes no harm to test for it)
150 if ( !win->IsTopLevel() && !IsOneOfBars(win) )
151 {
152 if ( child )
153 {
154 return; // it's our second subwindow - nothing to do
155 }
156
157 child = win;
158 }
159 }
160
161 // do we have any children at all?
162 if ( child )
163 {
164 // exactly one child - set it's size to fill the whole frame
165 int clientW, clientH;
166 DoGetClientSize(&clientW, &clientH);
167
168 // for whatever reasons, wxGTK wants to have a small offset - it
169 // probably looks better with it?
170 #ifdef __WXGTK__
171 static const int ofs = 1;
172 #else
173 static const int ofs = 0;
174 #endif
175
176 child->SetSize(ofs, ofs, clientW - 2*ofs, clientH - 2*ofs);
177 }
178 }
179 }
180
181 // The default implementation for the close window event.
182 void wxTopLevelWindowBase::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
183 {
184 Destroy();
185 }
186
187 bool wxTopLevelWindowBase::SendIconizeEvent(bool iconized)
188 {
189 wxIconizeEvent event(GetId(), iconized);
190 event.SetEventObject(this);
191
192 return GetEventHandler()->ProcessEvent(event);
193 }
194
195 // vi:sts=4:sw=4:et