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/FL/Fl_Slider.H b/common/fltk/FL/Fl_Slider.H
new file mode 100644
index 0000000..e16e2d6
--- /dev/null
+++ b/common/fltk/FL/Fl_Slider.H
@@ -0,0 +1,120 @@
+//
+// "$Id: Fl_Slider.H 7981 2010-12-08 23:53:04Z greg.ercolano $"
+//
+// Slider header file 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
+//
+
+/* \file
+   Fl_Slider widget . */
+
+#ifndef Fl_Slider_H
+#define Fl_Slider_H
+
+#ifndef Fl_Valuator_H
+#include "Fl_Valuator.H"
+#endif
+
+// values for type(), lowest bit indicate horizontal:
+#define FL_VERT_SLIDER		0
+#define FL_HOR_SLIDER		1
+#define FL_VERT_FILL_SLIDER	2
+#define FL_HOR_FILL_SLIDER	3
+#define FL_VERT_NICE_SLIDER	4
+#define FL_HOR_NICE_SLIDER	5
+
+/**
+  The Fl_Slider widget contains a sliding knob inside a box. It if
+  often used as a scrollbar.  Moving the box all the way to the
+  top/left sets it to the minimum(), and to the bottom/right to the
+  maximum().  The minimum() may be greater than the maximum() to
+  reverse the slider direction.
+
+  Use void Fl_Widget::type(int) to set how the slider is drawn, 
+  which can be one of the following:
+  
+  \li FL_VERTICAL - Draws a vertical slider (this is the default).
+  \li FL_HORIZONTAL - Draws a horizontal slider.
+  \li FL_VERT_FILL_SLIDER - Draws a filled vertical slider,
+      useful as a progress or value meter.
+  \li FL_HOR_FILL_SLIDER - Draws a filled horizontal  slider,
+      useful as a progress or value meter.
+  \li FL_VERT_NICE_SLIDER - Draws a vertical slider with  a nice
+      looking control knob.
+  \li FL_HOR_NICE_SLIDER - Draws a horizontal slider with  a
+      nice looking control knob.
+
+  \image html  slider.png 
+  \image latex slider.png "Fl_Slider" width=4cm
+*/
+class FL_EXPORT Fl_Slider : public Fl_Valuator {
+
+  float slider_size_;
+  uchar slider_;
+  void _Fl_Slider();
+  void draw_bg(int, int, int, int);
+
+protected:
+
+  // these allow subclasses to put the slider in a smaller area:
+  void draw(int, int, int, int);
+  int handle(int, int, int, int, int);
+  void draw();
+
+public:
+
+  int handle(int);
+  Fl_Slider(int X,int Y,int W,int H, const char *L = 0);
+  Fl_Slider(uchar t,int X,int Y,int W,int H, const char *L);
+
+  int scrollvalue(int pos,int size,int first,int total);
+  void bounds(double a, double b);
+
+  /**
+    Get the dimensions of the moving piece of slider.
+  */
+  float slider_size() const {return slider_size_;}
+
+  /**
+    Set the dimensions of the moving piece of slider. This is
+    the fraction of the size of the entire widget. If you set this
+    to 1 then the slider cannot move.  The default value is .08.
+
+    For the "fill" sliders this is the size of the area around the
+    end that causes a drag effect rather than causing the slider to
+    jump to the mouse.
+  */
+  void slider_size(double v);
+
+  /** Gets the slider box type. */
+  Fl_Boxtype slider() const {return (Fl_Boxtype)slider_;}
+
+  /** Sets the slider box type. */
+  void slider(Fl_Boxtype c) {slider_ = c;}
+};
+
+#endif
+
+//
+// End of "$Id: Fl_Slider.H 7981 2010-12-08 23:53:04Z greg.ercolano $".
+//