44c874b731
FL_OVERRIDE is defined as `override` for C++11 and higher FL_OVERRIDE is defined as `override` for VisualC 2015 and newer Don't interfere with Fl_Widget::override()
436 lines
12 KiB
C++
436 lines
12 KiB
C++
//
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// Unit tests for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2022 by Bill Spitzak and others.
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//
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// This library is free software. Distribution and use rights are outlined in
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// the file "COPYING" which should have been included with this file. If this
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// file is missing or damaged, see the license at:
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//
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// https://www.fltk.org/COPYING.php
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//
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// Please see the following page on how to report bugs and issues:
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//
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// https://www.fltk.org/bugs.php
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//
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#include "unittests.h"
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#include <config.h>
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#include <FL/Fl_Box.H>
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#include <FL/Fl_Hor_Value_Slider.H>
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#include <FL/Fl_Dial.H>
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#include <FL/Fl_Positioner.H>
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#include <FL/fl_draw.H>
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#if HAVE_GL
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#include <FL/Fl_Gl_Window.H>
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#endif
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//
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// --- test drawing circles and arcs ------
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//
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class Ut_Complex_Shapes_Test;
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void draw_complex(Ut_Complex_Shapes_Test *p);
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#if HAVE_GL
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class Ut_GL_Complex_Shapes_Test : public Fl_Gl_Window {
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public:
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Ut_GL_Complex_Shapes_Test(int x, int y, int w, int h)
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: Fl_Gl_Window(x, y, w, h) {
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box(FL_FLAT_BOX);
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end();
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}
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void draw() FL_OVERRIDE {
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draw_begin();
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Fl_Window::draw();
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draw_complex((Ut_Complex_Shapes_Test*)parent());
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draw_end();
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}
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};
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#endif
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class Ut_Native_Complex_Shapes_Test : public Fl_Window {
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public:
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Ut_Native_Complex_Shapes_Test(int x, int y, int w, int h)
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: Fl_Window(x, y, w, h) {
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box(FL_FLAT_BOX);
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end();
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}
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void draw() FL_OVERRIDE {
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Fl_Window::draw();
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draw_complex((Ut_Complex_Shapes_Test*)parent());
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}
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};
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//
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//------- test the compelx shape drawing capabilities of this implementation ----------
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//
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class Ut_Complex_Shapes_Test : public Fl_Group {
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Ut_Native_Complex_Shapes_Test* native_test_window;
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#if HAVE_GL
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Ut_GL_Complex_Shapes_Test* gl_test_window;
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#endif
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static void update_cb(Fl_Widget*, void *v) {
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Ut_Complex_Shapes_Test* This = (Ut_Complex_Shapes_Test*)v;
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This->native_test_window->redraw();
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#if HAVE_GL
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This->gl_test_window->redraw();
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#endif
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}
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public:
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Fl_Hor_Value_Slider* scale;
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Fl_Dial* rotate;
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Fl_Positioner* position;
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void set_transformation() {
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fl_translate(position->xvalue(), position->yvalue());
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fl_rotate(-rotate->value());
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fl_scale(scale->value(), scale->value());
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}
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static Fl_Widget* create() {
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return new Ut_Complex_Shapes_Test(UT_TESTAREA_X, UT_TESTAREA_Y, UT_TESTAREA_W, UT_TESTAREA_H);
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}
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Ut_Complex_Shapes_Test(int x, int y, int w, int h) : Fl_Group(x, y, w, h) {
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label("Testing complex shape drawing.");
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align(FL_ALIGN_INSIDE|FL_ALIGN_BOTTOM|FL_ALIGN_LEFT|FL_ALIGN_WRAP);
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box(FL_BORDER_BOX);
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int a = x+16, b = y+34;
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Fl_Box *t = new Fl_Box(a, b-24, 80, 18, "native");
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t->align(FL_ALIGN_LEFT|FL_ALIGN_INSIDE);
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native_test_window = new Ut_Native_Complex_Shapes_Test(a+23, b-1, 200, 200);
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t = new Fl_Box(a, b, 18, 18, "1");
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t->box(FL_ROUNDED_BOX); t->color(FL_YELLOW);
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t->tooltip(// Title:
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"Testing complex drawing with transformations.\n\n"
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// Description:
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"Draw a point pattern, an open line, a closed line, and a covenx polygon.\n\n"
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// Things to look out for:
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"Use the controls at the bottom right to scale, rotate, and move the patterns."
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);
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b+=44;
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t = new Fl_Box(a, b, 18, 18, "2");
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t->box(FL_ROUNDED_BOX); t->color(FL_YELLOW);
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t->tooltip(// Title:
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"Testing complex polygons.\n\n"
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// Description:
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"Draw polygons at different leves of complexity. "
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"All polygons should be within the blue boundaries\n\n"
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// Things to look out for:
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"1: a convex polygon\n"
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"2: a non-convex polygon\n"
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"3: two polygons in a single operation\n"
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"4: a polygon with a square hole in it"
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);
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b+=44;
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t = new Fl_Box(a, b, 18, 18, "3");
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t->box(FL_ROUNDED_BOX); t->color(FL_YELLOW);
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t->tooltip(// Title:
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"Testing complex polygons with arcs.\n\n"
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// Description:
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"Draw polygons with an arc section. "
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"All polygons should be within the blue boundaries\n\n"
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// Things to look out for:
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"1: a polygon with a camel hump\n"
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"2: a polygon with a camel dip"
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);
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#if HAVE_GL
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a = x+16+250, b = y+34;
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t = new Fl_Box(a, b-24, 80, 18, "OpenGL");
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t->align(FL_ALIGN_LEFT|FL_ALIGN_INSIDE);
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gl_test_window = new Ut_GL_Complex_Shapes_Test(a+31, b-1, 200, 200);
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t = new Fl_Box(a, b, 26, 18, "1a");
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t->box(FL_ROUNDED_BOX); t->color(FL_YELLOW);
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t->tooltip(// Title:
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"Testing complex drawing with transformations.\n\n"
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// Description:
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"Draw a point pattern, an open line, a closed line, and a convex polygon.\n\n"
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// Things to look out for:
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"Use the controls at the bottom right to scale, rotate, and move the patterns."
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);
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b+=44;
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t = new Fl_Box(a, b, 28, 18, "2a");
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t->box(FL_ROUNDED_BOX); t->color(FL_YELLOW);
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t->tooltip(// Title:
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"Testing complex polygons.\n\n"
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// Description:
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"Draw polygons at different leves of complexity. "
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"All polygons should be within the blue boundaries\n\n"
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// Things to look out for:
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"1: a convex polygon\n"
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"2: a non-convex polygon\n"
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"3: two polygons in a single operation\n"
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"4: a polygon with a square hole in it"
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);
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b+=44;
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t = new Fl_Box(a, b, 28, 18, "3a");
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t->box(FL_ROUNDED_BOX); t->color(FL_YELLOW);
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t->tooltip(// Title:
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"Testing complex polygons with arcs.\n\n"
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// Description:
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"Draw polygons with an arc section. "
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"All polygons should be within the blue boundaries\n\n"
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// Things to look out for:
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"1: a polygon with a camel hump\n"
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"2: a polygon with a camel dip"
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);
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#endif
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a = UT_TESTAREA_X+UT_TESTAREA_W-250;
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b = UT_TESTAREA_Y+UT_TESTAREA_H-50;
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scale = new Fl_Hor_Value_Slider(a, b+10, 120, 20, "Scale:");
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scale->align(FL_ALIGN_TOP_LEFT);
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scale->range(0.8, 1.2);
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scale->value(1.0);
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scale->callback(update_cb, this);
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rotate = new Fl_Dial(a+140, b, 40, 40, "Rotate:");
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rotate->align(FL_ALIGN_TOP_LEFT);
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rotate->angles(0, 360);
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rotate->range(-180.0, 180.0);
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rotate->value(0.0);
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rotate->callback(update_cb, this);
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position = new Fl_Positioner(a+200, b, 40, 40, "Offset:");
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position->align(FL_ALIGN_TOP_LEFT);
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position->xbounds(-10, 10);
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position->ybounds(-10, 10);
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position->value(0.0, 0.0);
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position->callback(update_cb, this);
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t = new Fl_Box(a-1, b-1, 1, 1);
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resizable(t);
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}
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};
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void convex_shape(int w, int h) {
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fl_vertex(-w/2, -h);
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fl_vertex(w/2, -h);
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fl_vertex(w, 0);
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fl_vertex(w, h);
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fl_vertex(0, h);
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fl_vertex(-w, h/2);
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fl_vertex(-w, -h/2);
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}
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void complex_shape(int w, int h) {
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fl_vertex(-w/2, -h);
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fl_vertex(0, -h/2);
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fl_vertex(w/2, -h);
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fl_vertex(w, 0);
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fl_vertex(w, h);
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fl_vertex(0, h);
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fl_vertex(-w, h/2);
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fl_vertex(-w/2, 0);
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fl_vertex(-w, -h/2);
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}
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void two_complex_shapes(int w, int h) {
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fl_vertex(-w/2, -h);
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fl_vertex(w/2, -h);
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fl_vertex(w, 0);
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fl_vertex(w, h-3);
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fl_gap();
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fl_vertex(w-3, h);
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fl_vertex(0, h);
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fl_vertex(-w, h/2);
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fl_vertex(-w, -h/2);
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}
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void complex_shape_with_hole(int w, int h) {
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int w2 = w/3, h2 = h/3;
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// clockwise
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fl_vertex(-w/2, -h);
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fl_vertex(w/2, -h);
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fl_vertex(w, 0);
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fl_vertex(w, h);
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fl_vertex(0, h);
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fl_vertex(-w, h/2);
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fl_vertex(-w, -h/2);
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fl_gap();
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// counterclockwise
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fl_vertex(-w2, -h2);
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fl_vertex(-w2, h2);
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fl_vertex( w2, h2);
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fl_vertex( w2, -h2);
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}
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void draw_complex(Ut_Complex_Shapes_Test *p) {
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int a = 0, b = 0, dx = 20, dy = 20, w = 10, h = 10;
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int w2 = w/3, h2 = h/3;
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// ---- 1: draw a random shape
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fl_color(FL_BLACK);
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// -- points
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fl_push_matrix();
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fl_translate(a+dx, b+dy);
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p->set_transformation();
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fl_begin_points();
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convex_shape(w, h);
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fl_end_points();
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fl_pop_matrix();
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// -- lines
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fl_push_matrix();
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fl_translate(a+dx+50, b+dy);
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p->set_transformation();
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fl_begin_line();
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convex_shape(w, h);
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fl_end_line();
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fl_pop_matrix();
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// -- line loop
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fl_push_matrix();
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fl_translate(a+dx+100, b+dy);
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p->set_transformation();
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fl_begin_loop();
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convex_shape(w, h);
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fl_end_loop();
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fl_pop_matrix();
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// -- polygon
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fl_push_matrix();
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fl_translate(a+dx+150, b+dy);
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p->set_transformation();
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fl_begin_polygon();
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convex_shape(w, h);
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fl_end_polygon();
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fl_pop_matrix();
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// ---- 2: draw a complex shape
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b += 44;
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// -- covex polygon drawn in complex mode
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fl_push_matrix();
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fl_translate(a+dx, b+dy);
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p->set_transformation();
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fl_color(FL_DARK2);
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fl_begin_complex_polygon();
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convex_shape(w, h);
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fl_end_complex_polygon();
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fl_color(FL_BLUE);
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fl_begin_loop();
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convex_shape(w, h);
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fl_end_loop();
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fl_pop_matrix();
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// -- non-convex polygon drawn in complex mode
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fl_push_matrix();
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fl_translate(a+dx+50, b+dy);
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p->set_transformation();
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fl_color(FL_DARK2);
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fl_begin_complex_polygon();
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complex_shape(w, h);
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fl_end_complex_polygon();
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fl_color(FL_BLUE);
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fl_begin_loop();
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complex_shape(w, h);
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fl_end_loop();
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fl_pop_matrix();
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// -- two part polygon with gap
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fl_push_matrix();
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fl_translate(a+dx+100, b+dy);
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p->set_transformation();
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fl_color(FL_DARK2);
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fl_begin_complex_polygon();
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two_complex_shapes(w, h);
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fl_end_complex_polygon();
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fl_color(FL_BLUE);
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fl_begin_loop();
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fl_vertex(-w/2, -h);
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fl_vertex(w/2, -h);
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fl_vertex(w, 0);
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fl_vertex(w, h-3);
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fl_end_loop();
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fl_begin_loop();
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fl_vertex(w-3, h);
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fl_vertex(0, h);
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fl_vertex(-w, h/2);
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fl_vertex(-w, -h/2);
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fl_end_loop();
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fl_pop_matrix();
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// -- polygon with a hole
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fl_push_matrix();
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fl_translate(a+dx+150, b+dy);
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p->set_transformation();
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fl_color(FL_DARK2);
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fl_begin_complex_polygon();
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complex_shape_with_hole(w, h);
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fl_end_complex_polygon();
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fl_color(FL_BLUE);
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fl_begin_loop();
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fl_vertex(-w/2, -h);
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fl_vertex(w/2, -h);
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fl_vertex(w, 0);
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fl_vertex(w, h);
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fl_vertex(0, h);
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fl_vertex(-w, h/2);
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fl_vertex(-w, -h/2);
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fl_end_loop();
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fl_begin_loop();
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fl_vertex(-w2, -h2);
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fl_vertex(-w2, h2);
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fl_vertex( w2, h2);
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fl_vertex( w2, -h2);
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fl_end_loop();
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fl_pop_matrix();
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// ---- 3: draw polygons with arcs
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b += 44;
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// -- a rectangle with a camel hump
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fl_push_matrix();
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fl_translate(a+dx, b+dy);
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p->set_transformation();
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fl_color(FL_DARK2);
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fl_begin_complex_polygon();
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fl_vertex(-w, 0); fl_arc(0, 0, w-3, 180.0, 0.0); fl_vertex(w, 0);
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fl_vertex(w, h); fl_vertex(-w, h);
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fl_end_complex_polygon();
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fl_color(FL_BLUE);
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fl_begin_loop();
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fl_vertex(-w, 0); fl_arc(0, 0, w-3, 180.0, 0.0); fl_vertex(w, 0);
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fl_vertex(w, h); fl_vertex(-w, h);
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fl_end_loop();
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fl_pop_matrix();
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// -- a rectangle with a camel dip
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fl_push_matrix();
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fl_translate(a+dx+50, b+dy);
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p->set_transformation();
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fl_color(FL_DARK2);
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fl_begin_complex_polygon();
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fl_vertex(-w, 0); fl_arc(0, 0, w-3, 180.0, 360.0); fl_vertex(w, 0);
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fl_vertex(w, h); fl_vertex(-w, h);
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fl_end_complex_polygon();
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fl_color(FL_BLUE);
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fl_begin_loop();
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fl_vertex(-w, 0); fl_arc(0, 0, w-3, 180.0, 360.0); fl_vertex(w, 0);
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fl_vertex(w, h); fl_vertex(-w, h);
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fl_end_loop();
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fl_pop_matrix();
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// -- a rectangle with a bezier curve top
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fl_push_matrix();
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fl_translate(a+dx+100, b+dy);
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p->set_transformation();
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fl_color(FL_DARK2);
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fl_begin_complex_polygon();
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fl_vertex(-w, 0);
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fl_curve(-w+3, 0, 0, -h, 0, h, w-3, 0);
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fl_vertex(w, 0);
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fl_vertex(w, h); fl_vertex(-w, h);
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fl_end_complex_polygon();
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fl_color(FL_BLUE);
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fl_begin_loop();
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fl_vertex(-w, 0);
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fl_curve(-w+3, 0, 0, -h, 0, h, w-3, 0);
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fl_vertex(w, 0);
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fl_vertex(w, h); fl_vertex(-w, h);
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fl_end_loop();
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fl_pop_matrix();
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}
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UnitTest complex_shapes(UT_TEST_COMPLEX_SHAPES, "Complex Shapes", Ut_Complex_Shapes_Test::create);
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