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_Counter.cxx b/common/fltk/src/Fl_Counter.cxx
new file mode 100644
index 0000000..7f895a7
--- /dev/null
+++ b/common/fltk/src/Fl_Counter.cxx
@@ -0,0 +1,211 @@
+//
+// "$Id: Fl_Counter.cxx 7903 2010-11-28 21:06:39Z matt $"
+//
+// Counter 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_Counter.H>
+#include <FL/fl_draw.H>
+
+void Fl_Counter::draw() {
+  int i; Fl_Boxtype boxtype[5];
+  Fl_Color selcolor;
+
+  boxtype[0] = box();
+  if (boxtype[0] == FL_UP_BOX) boxtype[0] = FL_DOWN_BOX;
+  if (boxtype[0] == FL_THIN_UP_BOX) boxtype[0] = FL_THIN_DOWN_BOX;
+  for (i=1; i<5; i++)
+    if (mouseobj == i)
+      boxtype[i] = fl_down(box());
+    else
+      boxtype[i] = box();
+
+  int xx[5], ww[5];
+  if (type() == FL_NORMAL_COUNTER) {
+    int W = w()*15/100;
+    xx[1] = x();	 ww[1] = W;
+    xx[2] = x()+1*W;     ww[2] = W;
+    xx[0] = x()+2*W;     ww[0] = w()-4*W;
+    xx[3] = x()+w()-2*W; ww[3] = W;
+    xx[4] = x()+w()-1*W; ww[4] = W;
+  } else {
+    int W = w()*20/100;
+    xx[1] = 0;	         ww[1] = 0;
+    xx[2] = x();	 ww[2] = W;
+    xx[0] = x()+W;	 ww[0] = w()-2*W;
+    xx[3] = x()+w()-1*W; ww[3] = W;
+    xx[4] = 0;	         ww[4] = 0;
+  }
+
+  draw_box(boxtype[0], xx[0], y(), ww[0], h(), FL_BACKGROUND2_COLOR);
+  fl_font(textfont(), textsize());
+  fl_color(active_r() ? textcolor() : fl_inactive(textcolor()));
+  char str[128]; format(str);
+  fl_draw(str, xx[0], y(), ww[0], h(), FL_ALIGN_CENTER);
+  if (Fl::focus() == this) draw_focus(boxtype[0], xx[0], y(), ww[0], h());
+  if (!(damage()&FL_DAMAGE_ALL)) return; // only need to redraw text
+
+  if (active_r())
+    selcolor = labelcolor();
+  else
+    selcolor = fl_inactive(labelcolor());
+
+  if (type() == FL_NORMAL_COUNTER) {
+    draw_box(boxtype[1], xx[1], y(), ww[1], h(), color());
+    fl_draw_symbol("@-4<<", xx[1], y(), ww[1], h(), selcolor);
+  }
+  draw_box(boxtype[2], xx[2], y(), ww[2], h(), color());
+  fl_draw_symbol("@-4<",  xx[2], y(), ww[2], h(), selcolor);
+  draw_box(boxtype[3], xx[3], y(), ww[3], h(), color());
+  fl_draw_symbol("@-4>",  xx[3], y(), ww[3], h(), selcolor);
+  if (type() == FL_NORMAL_COUNTER) {
+    draw_box(boxtype[4], xx[4], y(), ww[4], h(), color());
+    fl_draw_symbol("@-4>>", xx[4], y(), ww[4], h(), selcolor);
+  }
+}
+
+void Fl_Counter::increment_cb() {
+  if (!mouseobj) return;
+  double v = value();
+  switch (mouseobj) {
+  case 1: v -= lstep_; break;
+  case 2: v = increment(v, -1); break;
+  case 3: v = increment(v, 1); break;
+  case 4: v += lstep_; break;
+  }
+  handle_drag(clamp(round(v)));
+}
+
+#define INITIALREPEAT .5
+#define REPEAT .1
+
+void Fl_Counter::repeat_callback(void* v) {
+  Fl_Counter* b = (Fl_Counter*)v;
+  if (b->mouseobj) {
+    Fl::add_timeout(REPEAT, repeat_callback, b);
+    b->increment_cb();
+  }
+}
+
+int Fl_Counter::calc_mouseobj() {
+  if (type() == FL_NORMAL_COUNTER) {
+    int W = w()*15/100;
+    if (Fl::event_inside(x(), y(), W, h())) return 1;
+    if (Fl::event_inside(x()+W, y(), W, h())) return 2;
+    if (Fl::event_inside(x()+w()-2*W, y(), W, h())) return 3;
+    if (Fl::event_inside(x()+w()-W, y(), W, h())) return 4;
+  } else {
+    int W = w()*20/100;
+    if (Fl::event_inside(x(), y(), W, h())) return 2;
+    if (Fl::event_inside(x()+w()-W, y(), W, h())) return 3;
+  }
+  return -1;
+}
+
+int Fl_Counter::handle(int event) {
+  int i;
+  switch (event) {
+  case FL_RELEASE:
+    if (mouseobj) {
+      Fl::remove_timeout(repeat_callback, this);
+      mouseobj = 0;
+      redraw();
+    }
+    handle_release();
+    return 1;
+  case FL_PUSH:
+    if (Fl::visible_focus()) Fl::focus(this);
+    { Fl_Widget_Tracker wp(this);
+      handle_push();
+      if (wp.deleted()) return 1;
+    }
+  case FL_DRAG:
+    i = calc_mouseobj();
+    if (i != mouseobj) {
+      Fl::remove_timeout(repeat_callback, this);
+      mouseobj = (uchar)i;
+      if (i) Fl::add_timeout(INITIALREPEAT, repeat_callback, this);
+      Fl_Widget_Tracker wp(this);
+      increment_cb();
+      if (wp.deleted()) return 1;
+      redraw();
+    }
+    return 1;
+  case FL_KEYBOARD :
+    switch (Fl::event_key()) {
+      case FL_Left:
+	handle_drag(clamp(increment(value(),-1)));
+	return 1;
+      case FL_Right:
+	handle_drag(clamp(increment(value(),1)));
+	return 1;
+      default:
+        return 0;
+    }
+    // break not required because of switch...
+  case FL_FOCUS : /* FALLTHROUGH */
+  case FL_UNFOCUS :
+    if (Fl::visible_focus()) {
+      redraw();
+      return 1;
+    } else return 0;
+  case FL_ENTER : /* FALLTHROUGH */
+  case FL_LEAVE :
+    return 1;
+  default:
+    return 0;
+  }
+}
+
+/**
+  Destroys the valuator.
+ */
+Fl_Counter::~Fl_Counter() {
+  Fl::remove_timeout(repeat_callback, this);
+}
+
+/**
+  Creates a new Fl_Counter widget using the given position, size, and label
+  string. The default type is FL_NORMAL_COUNTER.
+  \param[in] X, Y, W, H position and size of the widget
+  \param[in] L widget label, default is no label
+ */
+Fl_Counter::Fl_Counter(int X, int Y, int W, int H, const char* L)
+  : Fl_Valuator(X, Y, W, H, L) {
+  box(FL_UP_BOX);
+  selection_color(FL_INACTIVE_COLOR); // was FL_BLUE
+  align(FL_ALIGN_BOTTOM);
+  bounds(-1000000.0, 1000000.0);
+  Fl_Valuator::step(1, 10);
+  lstep_ = 1.0;
+  mouseobj = 0;
+  textfont_ = FL_HELVETICA;
+  textsize_ = FL_NORMAL_SIZE;
+  textcolor_ = FL_FOREGROUND_COLOR;
+}
+
+//
+// End of "$Id: Fl_Counter.cxx 7903 2010-11-28 21:06:39Z matt $".
+//