/////////////////////////////////////////////////////////////////////////////
-// 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
// headers
// ----------------------------------------------------------------------------
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
- #pragma implementation "toplevelbase.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#include "wx/app.h"
#endif // WX_PRECOMP
+#include "wx/display.h"
+
// ----------------------------------------------------------------------------
// event table
// ----------------------------------------------------------------------------
// implementation
// ============================================================================
-IMPLEMENT_DYNAMIC_CLASS(wxTopLevelWindow, wxWindow)
+IMPLEMENT_ABSTRACT_CLASS(wxTopLevelWindow, wxWindow)
// ----------------------------------------------------------------------------
// construction/destruction
wxTopLevelWindowBase::wxTopLevelWindowBase()
{
+ // Unlike windows, top level windows are created hidden by default.
+ m_isShown = false;
}
wxTopLevelWindowBase::~wxTopLevelWindowBase()
if ( wxTheApp && wxTheApp->GetTopWindow() == this )
wxTheApp->SetTopWindow(NULL);
- bool shouldExit = IsLastBeforeExit();
-
wxTopLevelWindows.DeleteObject(this);
- if ( shouldExit )
+ if ( IsLastBeforeExit() )
{
- // then do it
+ // no other (important) windows left, quit the app
wxTheApp->ExitMainLoop();
}
}
if ( !wxPendingDelete.Member(this) )
wxPendingDelete.Append(this);
- // but hide it immediately
- Hide();
-
- // also remove it from the list of parents children so that the loop in
- // wxWindowBase::DestroyChildren() eventually terminates
- if ( m_parent )
+ if (wxTopLevelWindows.GetCount() > 1)
{
- m_parent->RemoveChild(this);
-
- // don't do it again in our dtor
- m_parent = NULL;
+ // 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;
+ return true;
}
bool wxTopLevelWindowBase::IsLastBeforeExit() const
{
- // we exit the application if there are no more top level windows left
- // normally but wxApp can prevent this from happening
- return wxTopLevelWindows.GetCount() == 1 &&
- wxTopLevelWindows.GetFirst()->GetData() == (wxWindow *)this &&
- wxTheApp && wxTheApp->GetExitOnFrameDelete();
+ // 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();
+
+ // 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 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;
+ }
+ }
+
+ return true;
}
// ----------------------------------------------------------------------------
// wxTopLevelWindow geometry
// ----------------------------------------------------------------------------
+void wxTopLevelWindowBase::GetRectForTopLevelChildren(int *x, int *y, int *w, int *h)
+{
+ GetPosition(x,y);
+ GetSize(w,h);
+}
+
wxSize wxTopLevelWindowBase::GetMaxSize() const
{
wxSize size( GetMaxWidth(), GetMaxHeight() );
wxClientDisplayRect( 0, 0, &w, &h );
- if( size.GetWidth() == -1 )
+ if( size.GetWidth() == wxDefaultCoord )
size.SetWidth( w );
- if( size.GetHeight() == -1 )
+ if( size.GetHeight() == wxDefaultCoord )
size.SetHeight( h );
return size;
}
+/* 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)
+{
+ // 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.Inside(rectParent.GetTopLeft()) &&
+ !rectParent.Inside(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.Inside(rect.GetTopLeft()) )
+ {
+ if ( !rectDisplay.Inside(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
// 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 the window-specific processing after processing the update event
void wxTopLevelWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
{
- if ( event.GetSetEnabled() )
- Enable(event.GetEnabled());
-
+ // 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() )
}
}
-// vi:sts=4:sw=4:et
+void wxTopLevelWindowBase::RequestUserAttention(int WXUNUSED(flags))
+{
+ // it's probably better than do nothing, isn't it?
+ Raise();
+}
projects / wxWidgets.git / blobdiff