| 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 and Julian Smart |
| 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 | #include "wx/app.h" |
| 34 | #endif // WX_PRECOMP |
| 35 | |
| 36 | // ---------------------------------------------------------------------------- |
| 37 | // event table |
| 38 | // ---------------------------------------------------------------------------- |
| 39 | |
| 40 | BEGIN_EVENT_TABLE(wxTopLevelWindowBase, wxWindow) |
| 41 | EVT_CLOSE(wxTopLevelWindowBase::OnCloseWindow) |
| 42 | EVT_SIZE(wxTopLevelWindowBase::OnSize) |
| 43 | END_EVENT_TABLE() |
| 44 | |
| 45 | // ============================================================================ |
| 46 | // implementation |
| 47 | // ============================================================================ |
| 48 | |
| 49 | IMPLEMENT_DYNAMIC_CLASS(wxTopLevelWindow, wxWindow) |
| 50 | |
| 51 | // ---------------------------------------------------------------------------- |
| 52 | // construction/destruction |
| 53 | // ---------------------------------------------------------------------------- |
| 54 | |
| 55 | wxTopLevelWindowBase::wxTopLevelWindowBase() |
| 56 | { |
| 57 | } |
| 58 | |
| 59 | wxTopLevelWindowBase::~wxTopLevelWindowBase() |
| 60 | { |
| 61 | // don't let wxTheApp keep any stale pointers to us |
| 62 | if ( wxTheApp && wxTheApp->GetTopWindow() == this ) |
| 63 | wxTheApp->SetTopWindow(NULL); |
| 64 | |
| 65 | bool shouldExit = IsLastBeforeExit(); |
| 66 | |
| 67 | wxTopLevelWindows.DeleteObject(this); |
| 68 | |
| 69 | if ( shouldExit ) |
| 70 | { |
| 71 | // then do it |
| 72 | wxTheApp->ExitMainLoop(); |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | bool wxTopLevelWindowBase::Destroy() |
| 77 | { |
| 78 | // delayed destruction: the frame will be deleted during the next idle |
| 79 | // loop iteration |
| 80 | if ( !wxPendingDelete.Member(this) ) |
| 81 | wxPendingDelete.Append(this); |
| 82 | |
| 83 | return TRUE; |
| 84 | } |
| 85 | |
| 86 | bool wxTopLevelWindowBase::IsLastBeforeExit() const |
| 87 | { |
| 88 | // we exit the application if there are no more top level windows left |
| 89 | // normally but wxApp can prevent this from happening |
| 90 | return wxTopLevelWindows.GetCount() == 1 && |
| 91 | wxTopLevelWindows.GetFirst()->GetData() == (wxWindow *)this && |
| 92 | wxTheApp && wxTheApp->GetExitOnFrameDelete(); |
| 93 | } |
| 94 | |
| 95 | // ---------------------------------------------------------------------------- |
| 96 | // wxTopLevelWindow geometry |
| 97 | // ---------------------------------------------------------------------------- |
| 98 | |
| 99 | wxSize wxTopLevelWindowBase::GetMaxSize() const |
| 100 | { |
| 101 | wxSize size( GetMaxWidth(), GetMaxHeight() ); |
| 102 | int w, h; |
| 103 | |
| 104 | wxClientDisplayRect( 0, 0, &w, &h ); |
| 105 | |
| 106 | if( size.GetWidth() == -1 ) |
| 107 | size.SetWidth( w ); |
| 108 | |
| 109 | if( size.GetHeight() == -1 ) |
| 110 | size.SetHeight( h ); |
| 111 | |
| 112 | return size; |
| 113 | } |
| 114 | |
| 115 | // ---------------------------------------------------------------------------- |
| 116 | // wxTopLevelWindow size management: we exclude the areas taken by |
| 117 | // menu/status/toolbars from the client area, so the client area is what's |
| 118 | // really available for the frame contents |
| 119 | // ---------------------------------------------------------------------------- |
| 120 | |
| 121 | void wxTopLevelWindowBase::DoScreenToClient(int *x, int *y) const |
| 122 | { |
| 123 | wxWindow::DoScreenToClient(x, y); |
| 124 | |
| 125 | // translate the wxWindow client coords to our client coords |
| 126 | wxPoint pt(GetClientAreaOrigin()); |
| 127 | if ( x ) |
| 128 | *x -= pt.x; |
| 129 | if ( y ) |
| 130 | *y -= pt.y; |
| 131 | } |
| 132 | |
| 133 | void wxTopLevelWindowBase::DoClientToScreen(int *x, int *y) const |
| 134 | { |
| 135 | // our client area origin (0, 0) may be really something like (0, 30) for |
| 136 | // wxWindow if we have a toolbar, account for it before translating |
| 137 | wxPoint pt(GetClientAreaOrigin()); |
| 138 | if ( x ) |
| 139 | *x += pt.x; |
| 140 | if ( y ) |
| 141 | *y += pt.y; |
| 142 | |
| 143 | wxWindow::DoClientToScreen(x, y); |
| 144 | } |
| 145 | |
| 146 | |
| 147 | // ---------------------------------------------------------------------------- |
| 148 | // event handlers |
| 149 | // ---------------------------------------------------------------------------- |
| 150 | |
| 151 | // default resizing behaviour - if only ONE subwindow, resize to fill the |
| 152 | // whole client area |
| 153 | void wxTopLevelWindowBase::OnSize(wxSizeEvent& WXUNUSED(event)) |
| 154 | { |
| 155 | // if we're using constraints or sizers - do use them |
| 156 | if ( GetAutoLayout() ) |
| 157 | { |
| 158 | Layout(); |
| 159 | } |
| 160 | else |
| 161 | { |
| 162 | // do we have _exactly_ one child? |
| 163 | wxWindow *child = (wxWindow *)NULL; |
| 164 | for ( wxWindowList::Node *node = GetChildren().GetFirst(); |
| 165 | node; |
| 166 | node = node->GetNext() ) |
| 167 | { |
| 168 | wxWindow *win = node->GetData(); |
| 169 | |
| 170 | // exclude top level and managed windows (status bar isn't |
| 171 | // currently in the children list except under wxMac anyhow, but |
| 172 | // it makes no harm to test for it) |
| 173 | if ( !win->IsTopLevel() && !IsOneOfBars(win) ) |
| 174 | { |
| 175 | if ( child ) |
| 176 | { |
| 177 | return; // it's our second subwindow - nothing to do |
| 178 | } |
| 179 | |
| 180 | child = win; |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | // do we have any children at all? |
| 185 | if ( child ) |
| 186 | { |
| 187 | // exactly one child - set it's size to fill the whole frame |
| 188 | int clientW, clientH; |
| 189 | DoGetClientSize(&clientW, &clientH); |
| 190 | |
| 191 | // for whatever reasons, wxGTK wants to have a small offset - it |
| 192 | // probably looks better with it? |
| 193 | #ifdef __WXGTK__ |
| 194 | static const int ofs = 1; |
| 195 | #else |
| 196 | static const int ofs = 0; |
| 197 | #endif |
| 198 | |
| 199 | child->SetSize(ofs, ofs, clientW - 2*ofs, clientH - 2*ofs); |
| 200 | } |
| 201 | } |
| 202 | } |
| 203 | |
| 204 | // The default implementation for the close window event. |
| 205 | void wxTopLevelWindowBase::OnCloseWindow(wxCloseEvent& WXUNUSED(event)) |
| 206 | { |
| 207 | Destroy(); |
| 208 | } |
| 209 | |
| 210 | bool wxTopLevelWindowBase::SendIconizeEvent(bool iconized) |
| 211 | { |
| 212 | wxIconizeEvent event(GetId(), iconized); |
| 213 | event.SetEventObject(this); |
| 214 | |
| 215 | return GetEventHandler()->ProcessEvent(event); |
| 216 | } |
| 217 | |
| 218 | // vi:sts=4:sw=4:et |