Rework wxMotif font/color inheritance so it works

like in the other ports.  Avoid setting foreground/background
color for windows and let the toolkit use the natural color.
As an intermediate step font is still explicitly set.

  Handle the cases where m_foregroundColour, m_backgroundColour ir m_font
are not initialized.

  Set default (overridable) X resources to emulate the old look.

  Unify wxMOTIF_NEW_FONT_HANDLING with wxMOTIF_USE_RENDER_TABLE.

  Minor unrelated (sizing) fixes to wxCheckListBox, wxStaticText, wxTextCtrl.

  Tagged with MOTIF_BEFORE_COLOUR_FONT_INHERITANCE before the changes.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@45312 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/motif/dialog.cpp

@@ -75,7 +75,6 @@ wxDialog::wxDialog()
 {
     m_modalShowing = false;
     m_eventLoop = NULL;
-    m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 }
 
 bool wxDialog::Create(wxWindow *parent, wxWindowID id,
@@ -94,16 +93,10 @@ bool wxDialog::Create(wxWindow *parent, wxWindowID id,
     m_modalShowing = false;
     m_eventLoop = NULL;
 
-    m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
-    m_foregroundColour = *wxBLACK;
-
     Widget dialogShell = (Widget) m_mainWidget;
 
     SetTitle( title );
 
-    m_font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
-    ChangeFont(false);
-
     // Can't remember what this was about... but I think it's necessary.
 #if wxUSE_INVISIBLE_RESIZE
     if (pos.x > -1)
@@ -135,7 +128,7 @@ bool wxDialog::Create(wxWindow *parent, wxWindowID id,
     XtAddEventHandler(dialogShell,ExposureMask,False,
         wxUniversalRepaintProc, (XtPointer) this);
 
-    ChangeBackgroundColour();
+    PostCreation();
 
     return true;
 }