From a6163888f3c56123b1db313743c6147ba498732c Mon Sep 17 00:00:00 2001
From: Yuval Adam <yuv.adm@gmail.com>
Date: Fri, 8 Aug 2014 14:42:07 +0300
Subject: Add third_party libs

---
 third_party/windows/fltk-1.1.10/src/Fl_Dial.cxx | 147 ++++++++++++++++++++++++
 1 file changed, 147 insertions(+)
 create mode 100644 third_party/windows/fltk-1.1.10/src/Fl_Dial.cxx

(limited to 'third_party/windows/fltk-1.1.10/src/Fl_Dial.cxx')

diff --git a/third_party/windows/fltk-1.1.10/src/Fl_Dial.cxx b/third_party/windows/fltk-1.1.10/src/Fl_Dial.cxx
new file mode 100644
index 0000000..3f8a32d
--- /dev/null
+++ b/third_party/windows/fltk-1.1.10/src/Fl_Dial.cxx
@@ -0,0 +1,147 @@
+//
+// "$Id: Fl_Dial.cxx 5472 2006-09-20 03:03:14Z mike $"
+//
+// Circular dial widget for the Fast Light Tool Kit (FLTK).
+//
+// Copyright 1998-2006 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_Dial.H>
+#include <FL/fl_draw.H>
+#include <stdlib.h>
+#include <FL/math.h>
+
+// All angles are measured with 0 to the right and counter-clockwise
+
+void Fl_Dial::draw(int X, int Y, int W, int H) {
+  if (damage()&FL_DAMAGE_ALL) draw_box(box(), X, Y, W, H, color());
+  X += Fl::box_dx(box());
+  Y += Fl::box_dy(box());
+  W -= Fl::box_dw(box());
+  H -= Fl::box_dh(box());
+  double angle = (a2-a1)*(value()-minimum())/(maximum()-minimum()) + a1;
+  if (type() == FL_FILL_DIAL) {
+    // foo: draw this nicely in certain round box types
+    int foo = (box() > _FL_ROUND_UP_BOX && Fl::box_dx(box()));
+    if (foo) {X--; Y--; W+=2; H+=2;}
+    if (active_r()) fl_color(color());
+    else fl_color(fl_inactive(color()));
+    fl_pie(X, Y, W, H, 270-a1, angle > a1 ? 360+270-angle : 270-360-angle);
+    if (active_r()) fl_color(selection_color());
+    else fl_color(fl_inactive(selection_color()));
+    fl_pie(X, Y, W, H, 270-angle, 270-a1);
+    if (foo) {
+      if (active_r()) fl_color(FL_FOREGROUND_COLOR);
+      else fl_color(fl_inactive(FL_FOREGROUND_COLOR));
+      fl_arc(X, Y, W, H, 0, 360);
+    }
+    return;
+  }
+  if (!(damage()&FL_DAMAGE_ALL)) {
+    if (active_r()) fl_color(color());
+    else fl_color(fl_inactive(color()));
+    fl_pie(X+1, Y+1, W-2, H-2, 0, 360);
+  }
+  fl_push_matrix();
+  fl_translate(X+W/2-.5, Y+H/2-.5);
+  fl_scale(W-1, H-1);
+  fl_rotate(45-angle);
+  if (active_r()) fl_color(selection_color());
+  else fl_color(fl_inactive(selection_color()));
+  if (type()) { // FL_LINE_DIAL
+    fl_begin_polygon();
+    fl_vertex(0.0,   0.0);
+    fl_vertex(-0.04, 0.0);
+    fl_vertex(-0.25, 0.25);
+    fl_vertex(0.0,   0.04);
+    fl_end_polygon();
+    if (active_r()) fl_color(FL_FOREGROUND_COLOR);
+    else fl_color(fl_inactive(FL_FOREGROUND_COLOR));
+    fl_begin_loop();
+    fl_vertex(0.0,   0.0);
+    fl_vertex(-0.04, 0.0);
+    fl_vertex(-0.25, 0.25);
+    fl_vertex(0.0,   0.04);
+    fl_end_loop();
+  } else {
+    fl_begin_polygon(); fl_circle(-0.20, 0.20, 0.07); fl_end_polygon();
+    if (active_r()) fl_color(FL_FOREGROUND_COLOR);
+    else fl_color(fl_inactive(FL_FOREGROUND_COLOR));
+    fl_begin_loop(); fl_circle(-0.20, 0.20, 0.07); fl_end_loop();
+  }
+  fl_pop_matrix();
+}
+
+void Fl_Dial::draw() {
+  draw(x(), y(), w(), h());
+  draw_label();
+}
+
+int Fl_Dial::handle(int event, int X, int Y, int W, int H) {
+  switch (event) {
+  case FL_PUSH:
+    handle_push();
+  case FL_DRAG: {
+    int mx = (Fl::event_x()-X-W/2)*H;
+    int my = (Fl::event_y()-Y-H/2)*W;
+    if (!mx && !my) return 1;
+    double angle = 270-atan2((float)-my, (float)mx)*180/M_PI;
+    double oldangle = (a2-a1)*(value()-minimum())/(maximum()-minimum()) + a1;
+    while (angle < oldangle-180) angle += 360;
+    while (angle > oldangle+180) angle -= 360;
+    double val;
+    if ((a1<a2) ? (angle <= a1) : (angle >= a1)) {
+      val = minimum();
+    } else if ((a1<a2) ? (angle >= a2) : (angle <= a2)) {
+      val = maximum();
+    } else {
+      val = minimum() + (maximum()-minimum())*(angle-a1)/(a2-a1);
+    }
+    handle_drag(clamp(round(val)));
+  } return 1;
+  case FL_RELEASE:
+    handle_release();
+    return 1;
+  case FL_ENTER :
+  case FL_LEAVE :
+    return 1;
+  default:
+    return 0;
+  }
+}
+
+int Fl_Dial::handle(int e) {
+  return handle(e, x(), y(), w(), h());
+}
+
+Fl_Dial::Fl_Dial(int X, int Y, int W, int H, const char* l)
+  : Fl_Valuator(X, Y, W, H, l) {
+  box(FL_OVAL_BOX);
+  selection_color(FL_INACTIVE_COLOR); // was 37
+  a1 = 45;
+  a2 = 315;
+}
+
+//
+// End of "$Id: Fl_Dial.cxx 5472 2006-09-20 03:03:14Z mike $".
+//
-- 
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