+ // Nothing to do if the contents fits horizontally.
+ if ( docArea.x <= pageArea.x )
+ return true;
+
+ // Otherwise warn the user more or less intrusively depending on whether
+ // we're previewing or printing:
+ if ( wxPrintPreview * const preview = GetPreview() )
+ {
+ // Don't annoy the user too much when previewing by using info bar
+ // instead of a dialog box.
+#if wxUSE_INFOBAR
+ wxFrame * const parent = preview->GetFrame();
+ wxCHECK_MSG( parent, false, "No parent preview frame?" );
+
+ wxSizer * const sizer = parent->GetSizer();
+ wxCHECK_MSG( sizer, false, "Preview frame should be using sizers" );
+
+ wxInfoBar * const bar = new wxInfoBar(parent);
+ sizer->Add(bar, wxSizerFlags().Expand());
+
+ // Note that the message here is similar to the one below but not
+ // exactly the same, notably we don't use the document title here
+ // because it's already clear which document it pertains to and the
+ // title may be long enough to make the text not fit in the window.
+ bar->ShowMessage
+ (
+ _("This document doesn't fit on the page horizontally and "
+ "will be truncated when it is printed."),
+ wxICON_WARNING
+ );
+#endif // wxUSE_INFOBAR
+ }
+ else // We're going to really print and not just preview.
+ {
+ // This is our last chance to warn the user that the output will be
+ // mangled so do show a message box.
+ wxMessageDialog
+ dlg
+ (
+ NULL,
+ wxString::Format
+ (
+ _("The document \"%s\" doesn't fit on the page "
+ "horizontally and will be truncated if printed.\n"
+ "\n"
+ "Would you like to proceed with printing it nevertheless?"),
+ GetTitle()
+ ),
+ _("Printing"),
+ wxOK | wxCANCEL | wxCANCEL_DEFAULT | wxICON_QUESTION
+ );
+ dlg.SetExtendedMessage
+ (
+ _("If possible, try changing the layout parameters to "
+ "make the printout more narrow.")
+ );
+ dlg.SetOKLabel(wxID_PRINT);
+
+ if ( dlg.ShowModal() == wxID_CANCEL )
+ return false;
+ }
+
+ return true;
+}