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()
215 lines
6.6 KiB
C++
215 lines
6.6 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_draw.H>
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#include <FL/math.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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void arc(int xi, int yi, int w, int h, double a1, double a2)
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{
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if (a2<=a1) return;
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double rx = w/2.0;
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double ry = h/2.0;
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double x = xi + rx + 0.5;
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double y = yi + ry + 0.5;
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double circ = M_PI*0.5*(rx+ry);
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int i, segs = int(circ * (a2-a1) / 100);
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if (segs<3) segs = 3;
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a1 = a1/180*M_PI;
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a2 = a2/180*M_PI;
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double step = (a2-a1)/segs;
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int nx = int(x + cos(a1)*rx);
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int ny = int(y - sin(a1)*ry);
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fl_point(nx, ny);
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for (i=segs; i>0; i--) {
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a1 += step;
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nx = int(x + cos(a1)*rx);
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ny = int(y - sin(a1)*ry);
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fl_point(nx, ny);
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}
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}
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void draw_circles() {
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int a = 0, b = 0, w=40, h=40;
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// ---- 1: draw a circle and a filled circle
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fl_color(FL_RED);
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arc(a+1, b+1, w-2, h-2, 0.0, 360.0);
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fl_color(FL_GREEN);
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arc(a, b, w, h, 0.0, 360.0);
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arc(a+2, b+2, w-4, h-4, 0.0, 360.0);
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fl_color(FL_BLACK);
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fl_arc(a+1, b+1, w-1, h-1, 0.0, 360.0);
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// ----
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fl_color(FL_RED);
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arc(a+1+50, b+1, w-2, h-2, 0.0, 360.0);
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fl_color(FL_GREEN);
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arc(a+50, b, w, h, 0.0, 360.0);
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fl_color(FL_BLACK);
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fl_pie(a+1+50, b+1, w-1, h-1, 0.0, 360.0);
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b+=44;
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// ---- 2: draw arcs and pies
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fl_color(FL_RED);
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// arc(a-5, b-5, w+10, h+10, 45.0, 315.0);
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arc(a+1, b+1, w-2, h-2, 45.0, 315.0);
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// arc(a+5, b+5, w-10, h-10, 45.0, 315.0);
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// arc(a+10, b+10, w-20, h-20, 45.0, 315.0);
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fl_color(FL_GREEN);
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arc(a, b, w, h, 45.0, 315.0);
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arc(a+2, b+2, w-4, h-4, 45.0, 315.0);
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fl_color(FL_BLACK);
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// fl_arc(a-5, b-5, w+10, h+10, 45.0, 315.0);
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fl_arc(a+1, b+1, w-1, h-1, 45.0, 315.0);
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// fl_arc(a+5, b+5, w-10, h-10, 45.0, 315.0);
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// fl_arc(a+10, b+10, w-20, h-20, 45.0, 315.0);
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fl_color(FL_RED);
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// ----
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arc(a+1+50, b+1, w-2, h-2, 45.0, 315.0);
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fl_line(a+50+20, b+20, a+50+20+14, b+20-14);
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fl_line(a+50+20, b+20, a+50+20+14, b+20+14);
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fl_color(FL_GREEN);
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arc(a+50, b, w, h, 45.0, 315.0);
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fl_line(a+50+21, b+20, a+50+21+14, b+20-14);
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fl_line(a+50+21, b+20, a+50+21+14, b+20+14);
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fl_color(FL_BLACK);
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fl_pie(a+1+50, b+1, w-1, h-1, 45.0, 315.0);
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}
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#if HAVE_GL
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class Ut_GL_Circle_Test : public Fl_Gl_Window {
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public:
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Ut_GL_Circle_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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}
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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_circles();
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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_Circle_Test : public Fl_Window {
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public:
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Ut_Native_Circle_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_circles();
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}
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};
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//
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//------- test the circle drawing capabilities of this implementation ----------
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//
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class Ut_Circle_Test : public Fl_Group {
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public:
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static Fl_Widget *create() {
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return new Ut_Circle_Test(UT_TESTAREA_X, UT_TESTAREA_Y, UT_TESTAREA_W, UT_TESTAREA_H);
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}
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Ut_Circle_Test(int x, int y, int w, int h)
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: Fl_Group(x, y, w, h) {
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label("Testing fast circle, arc, and pie drawing\n\n"
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"No red lines should be visible. "
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"The green outlines should not be overwritten by circle drawings.");
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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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/* NativeCircleTest *nr = */ new Ut_Native_Circle_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 circle alignment.\n\n"
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// Description:
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"This draws a black circle and a black disc, surrounded by a green frame.\n\n"
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// Things to look out for:
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"If green pixels are missing, circle drawing must be adjusted (see fl_arc, fl_pie).\n\n"
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"If red pixels are showing, line width or aligment may be off."
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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 arc and pie drawing.\n\n"
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// Description:
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"This draws a black frame, surrounded on the inside and outside by a green frame.\n\n"
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// Things to look out for:
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"If green pixels are missing or red pixels are showing, rectangular frame drawing schould be adjusted (see fl_rect).\n\n"
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"If red pixels show in the corners of the frame in hidpi mode, line endings should be adjusted."
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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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/* GLCircleTest *glr = */ new Ut_GL_Circle_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 circle alignment.\n\n"
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// Description:
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"This draws a black circle and a black disc, surrounded by a green frame.\n\n"
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// Things to look out for:
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"If green pixels are missing, circle drawing must be adjusted (see fl_arc, fl_pie).\n\n"
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"If red pixels are showing, line width or aligment may be off."
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);
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b+=44;
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t = new Fl_Box(a, b, 26, 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 arc and pie drawing.\n\n"
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// Description:
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"This draws a black frame, surrounded on the inside and outside by a green frame.\n\n"
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// Things to look out for:
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"If green pixels are missing or red pixels are showing, rectangular frame drawing schould be adjusted (see fl_rect).\n\n"
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"If red pixels show in the corners of the frame in hidpi mode, line endings should be adjusted."
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);
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#endif
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t = new Fl_Box(x+w-1,y+h-1, 1, 1);
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resizable(t);
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}
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};
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UnitTest circle(UT_TEST_CIRCLES, "Circles and Arcs", Ut_Circle_Test::create);
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