Include a stripped-down version of FLTK in tree and add a USE_INCLUDED_FLTK option to build against it.


git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4603 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/common/fltk/src/Fl_Menu_Button.cxx b/common/fltk/src/Fl_Menu_Button.cxx
new file mode 100644
index 0000000..bfd2207
--- /dev/null
+++ b/common/fltk/src/Fl_Menu_Button.cxx
@@ -0,0 +1,122 @@
+//
+// "$Id: Fl_Menu_Button.cxx 7903 2010-11-28 21:06:39Z matt $"
+//
+// Menu button widget for the Fast Light Tool Kit (FLTK).
+//
+// Copyright 1998-2010 by Bill Spitzak and others.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Library General Public License for more details.
+//
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+// USA.
+//
+// Please report all bugs and problems on the following page:
+//
+//     http://www.fltk.org/str.php
+//
+
+#include <FL/Fl.H>
+#include <FL/Fl_Menu_Button.H>
+#include <FL/fl_draw.H>
+
+
+static Fl_Menu_Button	*pressed_menu_button_ = 0;
+
+void Fl_Menu_Button::draw() {
+  if (!box() || type()) return;
+  draw_box(pressed_menu_button_ == this ? fl_down(box()) : box(), color());
+  draw_label();
+  if (Fl::focus() == this) draw_focus();
+  // ** if (box() == FL_FLAT_BOX) return; // for XForms compatibility
+  int H = (labelsize()-3)&-2;
+  int X = x()+w()-H*2;
+  int Y = y()+(h()-H)/2;
+  fl_color(active_r() ? FL_DARK3 : fl_inactive(FL_DARK3));
+  fl_line(X+H/2, Y+H, X, Y, X+H, Y);
+  fl_color(active_r() ? FL_LIGHT3 : fl_inactive(FL_LIGHT3));
+  fl_line(X+H, Y, X+H/2, Y+H);
+}
+
+/**
+  Act exactly as though the user clicked the button or typed the
+  shortcut key.  The menu appears, it waits for the user to pick an item,
+  and if they pick one it sets value() and does the callback or
+  sets changed() as described above.  The menu item is returned
+  or NULL if the user dismisses the menu.
+*/
+const Fl_Menu_Item* Fl_Menu_Button::popup() {
+  const Fl_Menu_Item* m;
+  pressed_menu_button_ = this;
+  redraw();
+  Fl_Widget_Tracker mb(this);
+  if (!box() || type()) {
+    m = menu()->popup(Fl::event_x(), Fl::event_y(), label(), mvalue(), this);
+  } else {
+    m = menu()->pulldown(x(), y(), w(), h(), 0, this);
+  }
+  picked(m);
+  pressed_menu_button_ = 0;
+  if (mb.exists()) redraw();
+  return m;
+}
+
+int Fl_Menu_Button::handle(int e) {
+  if (!menu() || !menu()->text) return 0;
+  switch (e) {
+  case FL_ENTER: /* FALLTHROUGH */
+  case FL_LEAVE:
+    return (box() && !type()) ? 1 : 0;
+  case FL_PUSH:
+    if (!box()) {
+      if (Fl::event_button() != 3) return 0;
+    } else if (type()) {
+      if (!(type() & (1 << (Fl::event_button()-1)))) return 0;
+    }
+    if (Fl::visible_focus()) Fl::focus(this);
+    popup();
+    return 1;
+  case FL_KEYBOARD:
+    if (!box()) return 0;
+    if (Fl::event_key() == ' ' &&
+        !(Fl::event_state() & (FL_SHIFT | FL_CTRL | FL_ALT | FL_META))) {
+      popup();
+      return 1;
+    } else return 0;
+  case FL_SHORTCUT:
+    if (Fl_Widget::test_shortcut()) {popup(); return 1;}
+    return test_shortcut() != 0;
+  case FL_FOCUS: /* FALLTHROUGH */
+  case FL_UNFOCUS:
+    if (box() && Fl::visible_focus()) {
+      redraw();
+      return 1;
+    }
+  default:
+    return 0;
+  }
+}
+
+/**
+  Creates a new Fl_Menu_Button widget using the given position,
+  size, and label string. The default boxtype is FL_UP_BOX.
+  <P>The constructor sets menu() to NULL.  See 
+  Fl_Menu_ for the methods to set or change the menu.
+*/
+Fl_Menu_Button::Fl_Menu_Button(int X,int Y,int W,int H,const char *l)
+: Fl_Menu_(X,Y,W,H,l) {
+  down_box(FL_NO_BOX);
+}
+
+//
+// End of "$Id: Fl_Menu_Button.cxx 7903 2010-11-28 21:06:39Z matt $".
+//