/////////////////////////////////////////////////////////////////////////////
-// Name: common/toplvcmn.cpp
+// Name: src/common/toplvcmn.cpp
// Purpose: common (for all platforms) wxTopLevelWindow functions
// Author: Julian Smart, Vadim Zeitlin
// Created: 01/02/97
// Id: $Id$
-// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
+// Copyright: (c) 1998 Robert Roebling and Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
- #pragma implementation "toplevelbase.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#pragma hdrstop
#endif
+#include "wx/toplevel.h"
+
#ifndef WX_PRECOMP
- #include "wx/toplevel.h"
#include "wx/dcclient.h"
+ #include "wx/app.h"
#endif // WX_PRECOMP
+#include "wx/display.h"
+
// ----------------------------------------------------------------------------
// event table
// ----------------------------------------------------------------------------
// implementation
// ============================================================================
-// FIXME: some platforms don't have wxTopLevelWindow yet
-#ifdef wxTopLevelWindowNative
- IMPLEMENT_DYNAMIC_CLASS(wxTopLevelWindow, wxWindow)
-#endif
+IMPLEMENT_ABSTRACT_CLASS(wxTopLevelWindow, wxWindow)
// ----------------------------------------------------------------------------
// construction/destruction
wxTopLevelWindowBase::wxTopLevelWindowBase()
{
+ // Unlike windows, top level windows are created hidden by default.
+ m_isShown = false;
+ m_winDefault = NULL;
+ m_winTmpDefault = NULL;
}
wxTopLevelWindowBase::~wxTopLevelWindowBase()
{
- // this destructor is required for Darwin
+ // don't let wxTheApp keep any stale pointers to us
+ if ( wxTheApp && wxTheApp->GetTopWindow() == this )
+ wxTheApp->SetTopWindow(NULL);
+
+ wxTopLevelWindows.DeleteObject(this);
+
+ if ( IsLastBeforeExit() )
+ {
+ // no other (important) windows left, quit the app
+ wxTheApp->ExitMainLoop();
+ }
}
bool wxTopLevelWindowBase::Destroy()
if ( !wxPendingDelete.Member(this) )
wxPendingDelete.Append(this);
- return TRUE;
+ if (wxTopLevelWindows.GetCount() > 1)
+ {
+ // Hide it immediately. This should
+ // not be done if this TLW is the
+ // only one left since we then would
+ // risk not to get any idle events
+ // at all anymore during which we
+ // could delete any pending events.
+ Hide();
+ }
+
+ return true;
}
-wxSize wxTopLevelWindowBase::GetMaxSize() const
+bool wxTopLevelWindowBase::IsLastBeforeExit() const
{
- wxSize size( GetMaxWidth(), GetMaxHeight() );
- int w, h;
+ // first of all, automatically exiting the app on last window close can be
+ // completely disabled at wxTheApp level
+ if ( !wxTheApp || !wxTheApp->GetExitOnFrameDelete() )
+ return false;
+
+ wxWindowList::const_iterator i;
+ const wxWindowList::const_iterator end = wxTopLevelWindows.end();
- wxClientDisplayRect( 0, 0, &w, &h );
+ // then decide whether we should exit at all
+ for ( i = wxTopLevelWindows.begin(); i != end; ++i )
+ {
+ wxTopLevelWindow * const win = wx_static_cast(wxTopLevelWindow *, *i);
+ if ( win->ShouldPreventAppExit() )
+ {
+ // there remains at least one important TLW, don't exit
+ return false;
+ }
+ }
- if( size.GetWidth() == -1 )
- size.SetWidth( w );
+ // if yes, close all the other windows: this could still fail
+ for ( i = wxTopLevelWindows.begin(); i != end; ++i )
+ {
+ // don't close twice the windows which are already marked for deletion
+ wxTopLevelWindow * const win = wx_static_cast(wxTopLevelWindow *, *i);
+ if ( !wxPendingDelete.Member(win) && !win->Close() )
+ {
+ // one of the windows refused to close, don't exit
+ //
+ // NB: of course, by now some other windows could have been already
+ // closed but there is really nothing we can do about it as we
+ // have no way just to ask the window if it can close without
+ // forcing it to do it
+ return false;
+ }
+ }
- if( size.GetHeight() == -1 )
- size.SetHeight( h );
+ return true;
+}
+
+// ----------------------------------------------------------------------------
+// wxTopLevelWindow geometry
+// ----------------------------------------------------------------------------
+
+void wxTopLevelWindowBase::SetMinSize(const wxSize& minSize)
+{
+ SetSizeHints( minSize.x, minSize.y, GetMaxWidth(), GetMaxHeight() );
+}
+
+void wxTopLevelWindowBase::SetMaxSize(const wxSize& maxSize)
+{
+ SetSizeHints( GetMinWidth(), GetMinHeight(), maxSize.x, maxSize.y );
+}
+
+// set the min/max size of the window
+void wxTopLevelWindowBase::DoSetSizeHints(int minW, int minH,
+ int maxW, int maxH,
+ int WXUNUSED(incW), int WXUNUSED(incH))
+{
+ // setting min width greater than max width leads to infinite loops under
+ // X11 and generally doesn't make any sense, so don't allow it
+ wxCHECK_RET( (minW == wxDefaultCoord || maxW == wxDefaultCoord || minW <= maxW) &&
+ (minH == wxDefaultCoord || maxH == wxDefaultCoord || minH <= maxH),
+ _T("min width/height must be less than max width/height!") );
+
+ m_minWidth = minW;
+ m_maxWidth = maxW;
+ m_minHeight = minH;
+ m_maxHeight = maxH;
+}
+
+void wxTopLevelWindowBase::GetRectForTopLevelChildren(int *x, int *y, int *w, int *h)
+{
+ GetPosition(x,y);
+ GetSize(w,h);
+}
+
+/* static */
+wxSize wxTopLevelWindowBase::GetDefaultSize()
+{
+ wxSize size = wxGetClientDisplayRect().GetSize();
+
+ // create proportionally bigger windows on small screens
+ if ( size.x >= 1024 )
+ size.x = 400;
+ else if ( size.x >= 800 )
+ size.x = 300;
+ else if ( size.x >= 320 )
+ size.x = 240;
+
+ if ( size.y >= 768 )
+ size.y = 250;
+ else if ( size.y > 200 )
+ {
+ size.y *= 2;
+ size.y /= 3;
+ }
return size;
}
+void wxTopLevelWindowBase::DoCentre(int dir)
+{
+ // on some platforms centering top level windows is impossible
+ // because they are always maximized by guidelines or limitations
+ if(IsAlwaysMaximized())
+ return;
+
+ // we need the display rect anyhow so store it first
+ int nDisplay = wxDisplay::GetFromWindow(this);
+ wxDisplay dpy(nDisplay == wxNOT_FOUND ? 0 : nDisplay);
+ const wxRect rectDisplay(dpy.GetClientArea());
+
+ // what should we centre this window on?
+ wxRect rectParent;
+ if ( !(dir & wxCENTRE_ON_SCREEN) && GetParent() )
+ {
+ // centre on parent window: notice that we need screen coordinates for
+ // positioning this TLW
+ rectParent = GetParent()->GetScreenRect();
+
+ // if the parent is entirely off screen (happens at least with MDI
+ // parent frame under Mac but could happen elsewhere too if the frame
+ // was hidden/moved away for some reason), don't use it as otherwise
+ // this window wouldn't be visible at all
+ if ( !rectDisplay.Contains(rectParent.GetTopLeft()) &&
+ !rectParent.Contains(rectParent.GetBottomRight()) )
+ {
+ // this is enough to make IsEmpty() test below pass
+ rectParent.width = 0;
+ }
+ }
+
+ if ( rectParent.IsEmpty() )
+ {
+ // we were explicitely asked to centre this window on the entire screen
+ // or if we have no parent anyhow and so can't centre on it
+ rectParent = rectDisplay;
+ }
+
+ // centering maximized window on screen is no-op
+ if((rectParent == rectDisplay) && IsMaximized())
+ return;
+
+ // the new window rect candidate
+ wxRect rect = GetRect().CentreIn(rectParent, dir);
+
+ // we don't want to place the window off screen if Centre() is called as
+ // this is (almost?) never wanted and it would be very difficult to prevent
+ // it from happening from the user code if we didn't check for it here
+ if ( rectDisplay.Contains(rect.GetTopLeft()) )
+ {
+ if ( !rectDisplay.Contains(rect.GetBottomRight()) )
+ {
+ // check if we can move the window so that the bottom right corner
+ // is visible without hiding the top left one
+ int dx = rectDisplay.GetRight() - rect.GetRight();
+ int dy = rectDisplay.GetBottom() - rect.GetBottom();
+ rect.Offset(dx, dy);
+ }
+ //else: the window top left and bottom right corner are both visible,
+ // although the window might still be not entirely on screen (with
+ // 2 staggered displays for example) we wouldn't be able to
+ // improve the layout much in such case, so just leave it as is
+ }
+ else // make top left corner visible
+ {
+ if ( rect.x < rectDisplay.x )
+ rect.x = rectDisplay.x;
+
+ if ( rect.y < rectDisplay.y )
+ rect.y = rectDisplay.y;
+ }
+
+ // -1 could be valid coordinate here if there are several displays
+ SetSize(rect, wxSIZE_ALLOW_MINUS_ONE);
+}
+
// ----------------------------------------------------------------------------
// wxTopLevelWindow size management: we exclude the areas taken by
// menu/status/toolbars from the client area, so the client area is what's
wxWindow::DoClientToScreen(x, y);
}
+bool wxTopLevelWindowBase::IsAlwaysMaximized() const
+{
+#if defined(__SMARTPHONE__) || defined(__POCKETPC__)
+ return true;
+#else
+ return false;
+#endif
+}
// ----------------------------------------------------------------------------
// event handlers
// default resizing behaviour - if only ONE subwindow, resize to fill the
// whole client area
-void wxTopLevelWindowBase::OnSize(wxSizeEvent& WXUNUSED(event))
+void wxTopLevelWindowBase::DoLayout()
{
// if we're using constraints or sizers - do use them
if ( GetAutoLayout() )
{
// do we have _exactly_ one child?
wxWindow *child = (wxWindow *)NULL;
- for ( wxWindowList::Node *node = GetChildren().GetFirst();
+ for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
node;
node = node->GetNext() )
{
}
// do we have any children at all?
- if ( child )
+ if ( child && child->IsShown() )
{
// exactly one child - set it's size to fill the whole frame
int clientW, clientH;
DoGetClientSize(&clientW, &clientH);
- // for whatever reasons, wxGTK wants to have a small offset - it
- // probably looks better with it?
-#ifdef __WXGTK__
- static const int ofs = 1;
-#else
- static const int ofs = 0;
-#endif
-
- child->SetSize(ofs, ofs, clientW - 2*ofs, clientH - 2*ofs);
+ child->SetSize(0, 0, clientW, clientH);
}
}
}
return GetEventHandler()->ProcessEvent(event);
}
-// vi:sts=4:sw=4:et
+// do the window-specific processing after processing the update event
+void wxTopLevelWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
+{
+ // call inherited, but skip the wxControl's version, and call directly the
+ // wxWindow's one instead, because the only reason why we are overriding this
+ // function is that we want to use SetTitle() instead of wxControl::SetLabel()
+ wxWindowBase::DoUpdateWindowUI(event);
+
+ // update title
+ if ( event.GetSetText() )
+ {
+ if ( event.GetText() != GetTitle() )
+ SetTitle(event.GetText());
+ }
+}
+
+void wxTopLevelWindowBase::RequestUserAttention(int WXUNUSED(flags))
+{
+ // it's probably better than do nothing, isn't it?
+ Raise();
+}
+
+void wxTopLevelWindowBase::RemoveChild(wxWindowBase *child)
+{
+ if ( child == m_winDefault )
+ m_winDefault = NULL;
+
+ if ( child == m_winTmpDefault )
+ m_winTmpDefault = NULL;
+
+ wxWindow::RemoveChild(child);
+}
projects / wxWidgets.git / blobdiff