mirror of https://github.com/fltk/fltk
100 lines
4.0 KiB
C++
Executable File
100 lines
4.0 KiB
C++
Executable File
//
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// "$Id$"
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//
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// Unit tests for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2010 by Bill Spitzak and others.
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// USA.
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//
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// Please report all bugs and problems on the following page:
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//
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// http://www.fltk.org/str.php
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//
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#include <FL/Fl_Box.H>
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#include <FL/fl_draw.H>
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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 CircleTest : public Fl_Box {
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public:
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static Fl_Widget *create() {
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return new CircleTest(TESTAREA_X, TESTAREA_Y, TESTAREA_W, TESTAREA_H);
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}
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CircleTest(int x, int y, int w, int h) : Fl_Box(x, y, w, h) {
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label("testing int drawing of circles and ovals (fl_arc, fl_pie)\n"
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"No red lines should be visible. "
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"If you see bright red pixels, the circle drawing alignment is off. "
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"If you see dark red pixels, your system supports anti-aliasing "
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"which should be of no concern. "
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"The green rectangles 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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}
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void draw() {
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Fl_Box::draw();
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int a = x()+10, b = y()+10; fl_color(FL_BLACK); fl_rect(a, b, 100, 100);
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// test fl_arc for full circles
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fl_color(FL_GREEN); fl_rect(a+ 9, b+ 9, 33, 33);
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fl_color(FL_RED); fl_xyline(a+24, b+10, a+27); fl_xyline(a+24, b+40, a+27);
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fl_yxline(a+10, b+24, b+27); fl_yxline(a+40, b+24, b+27);
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fl_color(FL_BLACK); fl_arc(a+10, b+10, 31, 31, 0.0, 360.0);
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// test fl_arc segmet 1
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fl_color(FL_GREEN); fl_rect(a+54, b+ 4, 43, 43);
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fl_rect(a+54, b+4, 18, 18); fl_rect(a+79, b+29, 18, 18);
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fl_color(FL_RED); fl_point(a+55, b+30); fl_point(a+70, b+45);
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fl_point(a+80, b+5); fl_point(a+95, b+20);
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fl_color(FL_BLACK); fl_arc(a+65, b+ 5, 31, 31, -35.0, 125.0);
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// test fl_arc segmet 2
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fl_color(FL_BLACK); fl_arc(a+55, b+15, 31, 31, 145.0, 305.0);
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// test fl_pie for full circles
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fl_color(FL_RED); fl_xyline(a+24, b+60, a+27); fl_xyline(a+24, b+90, a+27);
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fl_yxline(a+10, b+74, b+77); fl_yxline(a+40, b+74, b+77);
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fl_color(FL_GREEN); fl_rect(a+ 9, b+59, 33, 33);
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fl_color(FL_BLACK); fl_pie(a+10, b+60, 31, 31, 0.0, 360.0);
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// test fl_pie segmet 1
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fl_color(FL_GREEN); fl_rect(a+54, b+54, 43, 43);
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fl_rect(a+54, b+54, 18, 18); fl_rect(a+79, b+79, 18, 18);
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fl_point(a+79, b+71); fl_point(a+71, b+79);
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fl_color(FL_RED); fl_point(a+55, b+80); fl_point(a+70, b+95);
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fl_point(a+80, b+55); fl_point(a+95, b+70);
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fl_point(a+81, b+69); fl_point(a+69, b+81);
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fl_color(FL_BLACK); fl_pie(a+65, b+55, 31, 31, -30.0, 120.0);
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// test fl_pie segmet 2
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fl_color(FL_BLACK); fl_pie(a+55, b+65, 31, 31, 150.0, 300.0);
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//---- oval testing (horizontal squish)
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a +=120; b += 0; fl_color(FL_BLACK); fl_rect(a, b, 100, 100);
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fl_color(FL_GREEN);
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fl_rect(a+19, b+9, 63, 33); fl_rect(a+19, b+59, 63, 33);
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fl_color(FL_BLACK);
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fl_arc(a+20, b+10, 61, 31, 0, 360); fl_pie(a+20, b+60, 61, 31, 0, 360);
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//---- oval testing (horizontal squish)
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a += 120; b += 0; fl_color(FL_BLACK); fl_rect(a, b, 100, 100);
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fl_color(FL_GREEN);
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fl_rect(a+9, b+19, 33, 63); fl_rect(a+59, b+19, 33, 63);
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fl_color(FL_BLACK);
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fl_arc(a+10, b+20, 31, 61, 0, 360); fl_pie(a+60, b+20, 31, 61, 0, 360);
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}
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};
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UnitTest circle("circles and arcs", CircleTest::create);
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//
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// End of "$Id$"
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//
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