Add third_party libs

1 files changed, 203 insertions, 0 deletions

diff --git a/third_party/windows/fltk-1.1.10/test/mandelbrot.cxx b/third_party/windows/fltk-1.1.10/test/mandelbrot.cxx
new file mode 100644
index 0000000..27a40c2
--- /dev/null
+++ b/third_party/windows/fltk-1.1.10/test/mandelbrot.cxx
@@ -0,0 +1,203 @@
+//

+// "$Id: mandelbrot.cxx 6474 2008-10-19 20:15:48Z matt $"

+//

+// Mandelbrot set demo for the Fast Light Tool Kit (FLTK).

+//

+// Copyright 1998-2005 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 "mandelbrot_ui.h"

+#include <FL/fl_draw.H>

+#include <stdio.h>

+#include <stdlib.h>

+

+Drawing_Window mbrot;

+Drawing_Window jbrot;

+

+void idle(void*) {

+  if (!mbrot.d->idle() && !(jbrot.d && jbrot.d->idle())) Fl::remove_idle(idle);

+}

+

+void set_idle() {

+  Fl::add_idle(idle);

+}

+

+static void window_callback(Fl_Widget*, void*) {exit(0);}

+

+int main(int argc, char **argv) {

+  mbrot.make_window();

+  mbrot.d->X = -.75;

+  mbrot.d->scale = 2.5;

+  mbrot.update_label();

+  int i = 0;

+  if (Fl::args(argc,argv,i) < argc) Fl::fatal(Fl::help);

+  Fl::visual(FL_RGB);

+  mbrot.window->callback(window_callback);

+  mbrot.window->show(argc,argv);

+  Fl::run();

+  return 0;

+}

+

+void Drawing_Window::update_label() {

+  char buffer[128];

+  sprintf(buffer, "%+.10f", d->X); x_input->value(buffer);

+  sprintf(buffer, "%+.10f", d->Y); y_input->value(buffer);

+  sprintf(buffer, "%.2g", d->scale); w_input->value(buffer);

+}

+

+void Drawing_Area::draw() {

+  draw_box();

+  drawn = 0;

+  set_idle();

+}

+

+int Drawing_Area::idle() {

+  if (!window()->visible()) return 0;

+  if (drawn < nextline) {

+    window()->make_current();

+    int yy = drawn+y()+4;

+    if (yy >= sy && yy <= sy+sh) erase_box();

+    fl_draw_image_mono(buffer+drawn*W,x()+3,yy,W,1,1,W);

+    drawn++;

+    return 1;

+  }

+  if (nextline < H) {

+    if (!buffer) buffer = new uchar[W*H];

+    double yy = Y+(H/2-nextline)*scale/W;

+    double yi = yy; if (julia) yy = jY;

+    uchar *p = buffer+nextline*W;

+    for (int xi = 0; xi < W; xi++) {

+      double xx = X+(xi-W/2)*scale/W;

+      double wx = xx; double wy = yi;

+      if (julia) xx = jX;

+      for (int i=0; ; i++) {

+	if (i >= iterations) {*p = 0; break;}

+	double t = wx*wx - wy*wy + xx;

+	wy = 2*wx*wy + yy;

+	wx = t;

+	if (wx*wx + wy*wy > 4) {

+	  wx = t = 1-double(i)/(1<<10);

+	  if (t <= 0) t = 0; else for (i=brightness; i--;) t*=wx;

+	  *p = 255-int(254*t);

+	  break;

+	}

+      }

+      p++;

+    }

+    nextline++;

+    return nextline < H;

+  }

+  return 0;

+}

+

+void Drawing_Area::erase_box() {

+  window()->make_current();

+  fl_overlay_clear();

+}

+

+int Drawing_Area::handle(int event) {

+  static int ix, iy;

+  static int dragged;

+  static int button;

+  int x2,y2;

+  switch (event) {

+  case FL_PUSH:

+    erase_box();

+    ix = Fl::event_x(); if (ix<x()) ix=x(); if (ix>=x()+w()) ix=x()+w()-1;

+    iy = Fl::event_y(); if (iy<y()) iy=y(); if (iy>=y()+h()) iy=y()+h()-1;

+    dragged = 0;

+    button = Fl::event_button();

+    return 1;

+  case FL_DRAG:

+    dragged = 1;

+    erase_box();

+    x2 = Fl::event_x(); if (x2<x()) x2=x(); if (x2>=x()+w()) x2=x()+w()-1;

+    y2 = Fl::event_y(); if (y2<y()) y2=y(); if (y2>=y()+h()) y2=y()+h()-1;

+    if (button != 1) {ix = x2; iy = y2; return 1;}

+    if (ix < x2) {sx = ix; sw = x2-ix;} else {sx = x2; sw = ix-x2;}

+    if (iy < y2) {sy = iy; sh = y2-iy;} else {sy = y2; sh = iy-y2;}

+    window()->make_current();

+    fl_overlay_rect(sx,sy,sw,sh);

+    return 1;

+  case FL_RELEASE:

+    if (button == 1) {

+      erase_box();

+      if (dragged && sw > 3 && sh > 3) {

+	X = X + (sx+sw/2-x()-W/2)*scale/W;

+	Y = Y + (-sy-sh/2+y()+H/2)*scale/W;

+	scale = sw*scale/W;

+      } else if (!dragged) {

+	scale = 2*scale;

+	if (julia) {

+	  if (scale >= 4) {

+	    scale = 4;

+	    X = Y = 0;

+	  }

+	} else {

+	  if (scale >= 2.5) {

+	    scale = 2.5;

+	    X = -.75;

+	    Y = 0;

+	  }

+	}

+      } else return 1;

+      ((Drawing_Window*)(user_data()))->update_label();

+      new_display();

+    } else if (!julia) {

+      if (!jbrot.d) {

+	jbrot.make_window();

+	jbrot.d->julia = 1;

+	jbrot.d->X = 0;

+	jbrot.d->Y = 0;

+	jbrot.d->scale = 4;

+	jbrot.update_label();

+      }

+      jbrot.d->jX = X + (ix-x()-W/2)*scale/W;

+      jbrot.d->jY = Y + (H/2-iy+y())*scale/W;

+      static char s[128];

+      sprintf(s, "Julia %.7f %.7f",jbrot.d->jX,jbrot.d->jY);

+      jbrot.window->label(s);

+      jbrot.window->show();

+      jbrot.d->new_display();

+    }

+    return 1;

+  }

+  return 0;

+}

+

+void Drawing_Area::new_display() {

+  drawn = nextline = 0;

+  set_idle();

+}

+

+void Drawing_Area::resize(int XX,int YY,int WW,int HH) {

+  if (WW != w() || HH != h()) {

+    W = WW-6;

+    H = HH-8;

+    if (buffer) {delete[] buffer; buffer = 0; new_display();}

+  }

+  Fl_Box::resize(XX,YY,WW,HH);

+}

+

+//

+// End of "$Id: mandelbrot.cxx 6474 2008-10-19 20:15:48Z matt $".

+//