// // Unit tests for the Fast Light Tool Kit (FLTK). // // Copyright 1998-2022 by Bill Spitzak and others. // // This library is free software. Distribution and use rights are outlined in // the file "COPYING" which should have been included with this file. If this // file is missing or damaged, see the license at: // // https://www.fltk.org/COPYING.php // // Please see the following page on how to report bugs and issues: // // https://www.fltk.org/bugs.php // #include "unittests.h" #include // //------- Introduction to FLTK drawing test ------- // class About : public Fl_Help_View { public: static Fl_Widget *create() { return new About(TESTAREA_X, TESTAREA_Y, TESTAREA_W, TESTAREA_H); } About(int x, int y, int w, int h) : Fl_Help_View(x, y, w, h) { value( "

About Unit Testing...

\n" "The Unit Testing application can be used to verify correct graphics rendering " "on the current platform. The core developer team uses this program to make sure that the " "FLTK user experience is identical on all supported graphics systems." "

The UI Designer

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Designing a good user interface is an art. Widgets must be selected and carefully positioned " "to create a consistent look and feel for the user. Text must fit into given boxes and graphic " "elements must be correctly aligned. A good UI library will give consistent results on any " "supported platform and render all graphics in the way the UI designer intended.

\n" "

FLTK supports a large collection of platforms and graphics drivers. This unit testing " "application contains modules which will test rendering and alignment for most " "FLTK core graphics functions.

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The Developer

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Unittest is also a great help when implementing new graphics drivers. The tests are sorted " "in the same order in which a new graphics driver could be implemented. Most tests rely " "on the previous test to function correctly, so sticking to the given order is a good idea.

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Conventions

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Two layers of graphics are drawn for most tests. The lower layer contains " "red and green pixels. The upper layer contains black pixels. The test is rendered correctly " "if all red pixels are covered, but none of the green pixels. The top graphics layer can be " "switched on and off.

" ""); } }; UnitTest about(kTestAbout, "About...", About::create);