mirror of https://github.com/fltk/fltk
371 lines
17 KiB
HTML
371 lines
17 KiB
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<H1 ALIGN="RIGHT"><A NAME="tests">I - Tests and Demo Source Code</A></H1>
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<P ALIGN="RIGHT">March 19, 2005</P>
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<P>The FLTK distribution contains over 60 sample applications written
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in or ported to FLTK. If the FLTK archive you received does not
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contain a 'test' directory, you can download the complete FLTK
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distribution from
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<a href="http://fltk.org/software.php">http://fltk.org/software.php</a>.</P>
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<P>Most of the example programs were created while testing a group of widgets.
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They are not meant to be great achievements in clean C++ programming, but merely
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a test platform to verify the functionality of the FLTK library.</P>
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<table width=100% border=0>
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<tr><td colspan=4><font size=+1><b>Example Applications</b></font></td>
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<tr>
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<td><a href="#adjuster"><tt>adjuster</tt></a></td>
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<td><a href="#arc"><tt>arc</tt></a></td>
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<td><a href="#ask"><tt>ask</tt></a></td>
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<td><a href="#bitmap"><tt>bitmap</tt></a></td>
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<td><a href="#boxtype"><tt>boxtype</tt></a></td>
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<td><a href="#browser"><tt>browser</tt></a></td>
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</tr>
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<tr>
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<td><a href="#button"><tt>button</tt></a></td>
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<td><a href="#buttons"><tt>buttons</tt></a></td>
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<td><a href="#checkers"><tt>checkers</tt></a></td>
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<td><a href="#clock"><tt>clock</tt></a></td>
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<td><a href="#colbrowser"><tt>colbrowser</tt></a></td>
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<td><a href="#color_chooser"><tt>color_chooser</tt></a></td>
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</tr>
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<tr>
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<td><a href="#cube"><tt>cube</tt></a></td>
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<td><a href="#CubeView"><tt>CubeView</tt></a></td>
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<td><a href="#cursor"><tt>cursor</tt></a></td>
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<td><a href="#curve"><tt>curve</tt></a></td>
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<td><a href="#demo"><tt>demo</tt></a></td>
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<td><a href="#doublebuffer"><tt>doublebuffer</tt></a></td>
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</tr>
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<tr>
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<td><a href="#editor"><tt>editor</tt></a></td>
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<td><a href="#fast_slow"><tt>fast_slow</tt></a></td>
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<td><a href="#file_chooser"><tt>file_chooser</tt></a></td>
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<td><a href="#fluid"><tt>fluid</tt></a></td>
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<td><a href="#fonts"><tt>fonts</tt></a></td>
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<td><a href="#forms"><tt>forms</tt></a></td>
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</tr>
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<tr>
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<td><a href="#fractals"><tt>fractals</tt></a></td>
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<td><a href="#fullscreen"><tt>fullscreen</tt></a></td>
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<td><a href="#gl_overlay"><tt>gl_overlay</tt></a></td>
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<td><a href="#glpuzzle"><tt>glpuzzle</tt></a></td>
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<td><a href="#hello"><tt>hello</tt></a></td>
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<td><a href="#help"><tt>help</tt></a></td>
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</tr>
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<tr>
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<td><a href="#iconize"><tt>iconize</tt></a></td>
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<td><a href="#image"><tt>image</tt></a></td>
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<td><a href="#inactive"><tt>inactive</tt></a></td>
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<td><a href="#input"><tt>input</tt></a></td>
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<td><a href="#input_choice"><tt>input_choice</tt></a></td>
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<td><a href="#keyboard"><tt>keyboard</tt></a></td>
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</tr>
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<tr>
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<td><a href="#label"><tt>label</tt></a></td>
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<td><a href="#line_style"><tt>line_style</tt></a></td>
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<td><a href="#list_visuals"><tt>list_visuals</tt></a></td>
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<td><a href="#mandelbrot"><tt>mandelbrot</tt></a></td>
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<td><a href="#menubar"><tt>menubar</tt></a></td>
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<td><a href="#message"><tt>message</tt></a></td>
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</tr>
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<tr>
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<td><a href="#minimum"><tt>minimum</tt></a></td>
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<td><a href="#navigation"><tt>navigation</tt></a></td>
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<td><a href="#output"><tt>output</tt></a></td>
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<td><a href="#overlay"><tt>overlay</tt></a></td>
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<td><a href="#pack"><tt>pack</tt></a></td>
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<td><a href="#pixmap_browser"><tt>pixmap_browser</tt></a></td>
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</tr>
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<tr>
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<td><a href="#pixmap"><tt>pixmap</tt></a></td>
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<td><a href="#preferences"><tt>preferences</tt></a></td>
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<td><a href="#radio"><tt>radio</tt></a></td>
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<td><a href="#resizebox"><tt>resizebox</tt></a></td>
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<td><a href="#resize"><tt>resize</tt></a></td>
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<td><a href="#scroll"><tt>scroll</tt></a></td>
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</tr>
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<tr>
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<td><a href="#shape"><tt>shape</tt></a></td>
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<td><a href="#subwindow"><tt>subwindow</tt></a></td>
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<td><a href="#symbols"><tt>symbols</tt></a></td>
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<td><a href="#tabs"><tt>tabs</tt></a></td>
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<td><a href="#threads"><tt>threads</tt></a></td>
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<td><a href="#tile"><tt>tile</tt></a></td>
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</tr>
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<tr>
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<td><a href="#tiled_image"><tt>tiled_image</tt></a></td>
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<td><a href="#valuators"><tt>valuators</tt></a></td>
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</tr>
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</table>
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<h3><a name="adjuster">adjuster</h3>
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<tt>adjuster</tt> shows a nifty little widget for quickly
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setting values in a great range.
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<h3><a name="arc">arc</h3>
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The <tt>arc</tt> demo explains how to derive your own widget to
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generate some custom drawings. The sample drawings use the matrix
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based arc drawing for some fun effects.
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<h3><a name="ask">ask</h3>
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<tt>ask</tt> shows some of FLTK's standard dialog boxes, but you
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may end up in a loop, but you may end up in a loop, but... .
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<h3><a name="bitmap">bitmap</h3>
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This simple test shows the use of a single color bitmap as a
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label for a box widget. Bitmaps are stored in the X11 '.bmp'
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file format and can be part of the source code.
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<h3><a name="boxtype">boxtype</h3>
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<tt>boxtype</tt> gives an overview of readily available boxes and
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frames in FLTK. More types can be added by the user. When using
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themes, FLTK shuffles boxtypes around to give an app a new look.
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<h3><a name="browser">browser</h3>
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<tt>browser</tt> shows the capabilities of the <tt>Fl_Browser</tt> widget.
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Important features tested are loading of files, line formatting, and
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correct positioning of the browser data window.
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<h3><a name="button">button</h3>
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The <tt>button</tt> test is a very simple demo of buttons and callbacks.
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<h3><a name="buttons">buttons</h3>
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<tt>buttons</tt> shows a sample of FLTK button types.
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<h3><a name="checkers">checkers</h3>
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Written by Steve Poulsen in early 1979, <tt>checkers</tt> shows
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how to polish a VT100 text terminal based program into a neat
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program with a graphical UI. Check out the code that drags the
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pieces, and how the pieces are drawn by layering. Then tell me
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how to beat this program.
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<h3><a name="clock">clock</h3>
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The <tt>clock</tt> demo shows two analog clocks. The innards of
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teh <tt>Fl_Clock</tt> widget are pretty interesting as they explain
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the use of timeouts and matrix based drawing.
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<h3><a name="colbrowser">colbrowser</h3>
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<tt>colbrowser</tt> runs only on X11 systems. It reads
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<i>/usr/lib/X11/rgb.txt</i> to show the color representation
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of every text entry in the file. This is beautiful, but
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only mederatly useful unless your UI is written in <i>Motif</i>.
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<h3><a name="color_chooser">color_chooser</h3>
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The <tt>color_chooser</tt> gives a short demo of FLTK's palette based
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color chooser and of the RGB based color wheel.
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<h3><a name="cube">cube</h3>
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The <tt>cube</tt> demo shows the speed of OpenGL. It also tests
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the ability to render two OpenGL buffers into a single window,
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and shows OpenGL text.
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<h3><a name="CubeView">CubeView</h3>
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<tt>CubeView</tt> shows how to create a UI containing OpenGL with fluid.
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<h3><a name="cursor">cursor</h3>
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The <tt>cursor</tt> demo show all mouse cursor shapes that come standard
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with FLTK. The <i>fgcolor</i> and <i>bgcolor</i> sliders work only
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on few systems like Irix.
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<h3><a name="curve">curve</h3>
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<tt>curve</tt> draws a nice Bezier curve into a custom widget. The
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<i>points</i> option for splines is not supported on all platforms.
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<h3><a name="demo">demo</h3>
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This tool allows quick access to all programs in the <tt>test</tt> directory.
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<tt>demo</tt> is viaully based on the IrixGL demo program and cna be
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extended by editing <tt>test/demo.menu</tt>.
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<h3><a name="doublebuffer">doublebuffer</h3>
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The <tt>doublebuffer</tt> demo show the difference between a single
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buffered window, which may flicker during a slow redraw, and a
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double buffered window, which never flickers, but uses twice the
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amount of RAM. Some modern OS's double buffer all windows automatically
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to allow transparency and shadows on the desktop. FLTK is smart enough
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to not tripple buffer a window in that case.
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<h3><a name="editor">editor</h3>
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FLTK has two very different text input widgets. <tt>Fl_Input</tt>
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and derived classes are rather leight weight, however
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<tt>Fl_Text_Editor</tt> is a complete port of nedit (with permission).
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The <tt>editor</tt> test is almost a full application, showing custom
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syntax highlighting and dialog creation.
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<h3><a name="fast_slow">fast_slow</h3>
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<tt>fast_slow</tt> shows how an application can use then <tt>when()</tt>
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setting to receive different kinds of callbacks.
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<h3><a name="file_chooser">file_chooser</h3>
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The standard FLTK <tt>file_chooser</tt> is the result of many
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iterations, trying to find a middle ground between a complex
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browser and a fast light implementation.
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<h3><a name="fonts">fonts</h3>
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<tt>fonts</tt> show all available text fonts on the host system.
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If your machine still has some pixmap based fonts, the supported
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sizes will be shown in bold face. Only the first 256 fonts will
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be listed.
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<h3><a name="forms">forms</h3>
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<tt>forms</tt> is an XForms program with very few changes.
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Search for "fltk" to find all changes necessary to port to fltk.
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This demo show the different boxtypes. Note that some
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boxtypes are not appropriate for some objects.
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<h3><a name="fractals">fractals</h3>
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<tt>fractals</tt> shows how to mix OpenGL, Glut and FLTK code.
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FLTK supports a rather large subset of Glut, so that many Glut
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application compile just fine.
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<h3><a name="fullscreen">fullscreen</h3>
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This demo shows how to do many of the window manipulations that
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are popular on SGI programs, even though X does not really like
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them. You can toggle the border on/off, change the visual to
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switch between single/double buffer, and make the window take
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over the screen. More information in the source code.
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<h3><a name="gl_overlay">gl_overlay</h3>
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<tt>gl_overlay</tt> shows OpenGL overlay plane rendering. If no
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hardware overly plane is available, FLTK will simulate it
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automatically.
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<h3><a name="glpuzzle">glpuzzle</h3>
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The <tt>glpuzzle</tt> test dhows how most Glut source code compiles
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easily under FLTK.
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<h3><a name="hello">hello</h3>
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<tt>hello</tt>: Hello, World. Need I say maore? Well, maybe. This
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tiny demo shows how little is needed to get a functioning application
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running with FLTK. Quite impressive, I'd say.
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<h3><a name="help">help</h3>
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<tt>help</tt> displays the built-in FLTK help browser. The
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<tt>Fl_Help_Dialog</tt> understands a subset of html and renders
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various image formats. It is a great help to provide help
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pages to the user without depending on the operating system's
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html browser.
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<h3><a name="iconize">iconize</h3>
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<tt>iconize</tt> demonstrates the efeect of the window functions
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<tt>hide()</tt>, <tt>iconize()</tt>, and <tt>show()</tt>.
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<h3><a name="image">image</h3>
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The <tt>image</tt> demo shows how an image can be created on the fly.
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This generated image contains an alpha (transparency) channel which
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lets previous renderings 'shine through', either via true
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transparency or by using screen door transparency (pixelation).
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<h3><a name="inactive">inactive</h3>
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<tt>inactive</tt> tests the correct rendering of inactive widgets.
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To see the inactive version of images, you can check the pixmap
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or image test.
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<h3><a name="input">input</h3>
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This tool shows and tests differnet types of text input fields based on
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<tt>Fl_Input_</tt>. The <tt>input</tt> program also tests various
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settings of <tt>Fl_Input::when()</tt>.
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<h3><a name="input_choice">input_choice</h3>
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<tt>input_choice</tt> tests the latest addition to FLTK1, a text input
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field with an attached pulldown menu. Windows users will recognize
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similarities to the 'ComboBox'. <tt>input_choice</tt> starts up in
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'plastic' scheme, but the traditional scheme is also supported.
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<h3><a name="keyboard">keyboard</h3>
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FLTK unifies keyboard events for all platforms. The <tt>keyboard</tt>
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test can be used to check the return values of <tt>Fl::event_key()</tt>
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and <tt>Fl::event_text()</tt>. It is also great to see the modifier
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buttons and the scroll wheel at work. Quit this application by closing
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the window. The ESC key will not work.
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<h3><a name="label">label</h3>
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Every FLTK widget can have a label attached to it. The <tt>label</tt>
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demo shows alignment, clipping and wrapping of text labels. Labels
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can contain symbols at the start and end of the text, like <i>@FLTK</i>
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or <i>@circle uh-huh @square</i>.
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<h3><a name="line_style">line_style</h3>
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Advanced line drawing can be tested with <tt>line_style</tt>.
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Not all platforms support all line styles.
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<h3><a name="list_visuals">list_visuals</h3>
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This little app finds all available pixel formats for the current X11
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screen. But since you are now an FLTK user, you don't have to worry
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about any of this.
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<h3><a name="mandelbrot">mandelbrot</h3>
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<tt>mandelbrot</tt> shows two advanced topics in one test. It creates
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grayscale images on the fly, updating them via the <i>idle</i> callback
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system. This is one of the few occasions where the <i>idle</i> callback
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is very useful by giving all available processor time to the application
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without blocking the UI or other apps.
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<h3><a name="menubar">menubar</h3>
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The <tt>menubar</tt> tests many aspects of FLTK's popup menu system.
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Among the features are radio buttons, menus taller than the screen,
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arbitrary sub menu depth, and global shortcuts.
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<h3><a name="message">message</h3>
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<tt>message</tt> pops up a few of FLTK's standars message boxes.
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<h3><a name="minimum">minimum</h3>
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The <tt>minimum</tt> test program verifies that the update regions
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are set correctly. In a real life application, the trail would
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be avoided by choosing a smaller label or by setting label clipping.
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correctly.
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<h3><a name="navigation">navigation</h3>
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<tt>navigation</tt> demonstrates how the text cursor moves from
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text field to text field by using the arrow keys, tab and shift-tab..
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<h3><a name="output">output</h3>
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<tt>output</tt> shows the difference between the single line and
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multi line mode of the <tt>Fl_Output</tt> widget. Fonts can be
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selected from the FLTK standard list of fonts.
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<h3><a name="overlay">overlay</h3>
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The <tt>overlay</tt> test app show how easy an FLTK window can
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be layered to display cursor and manipulator style elemnts. This
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example derives a new class from <tt>Fl_Overly_WIndow</tt> and
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provides a new function to draw custom overlays.
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<h3><a name="pack">pack</h3>
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The <tt>pack</tt> test program demonstrates the resizing
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and repositioning of children of the <tt>Fl_Pack</tt> group.
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Putting an <tt>Fl_Pack</tt> into an <tt>Fl_Scroll</tt> is
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a useful way to create a kind of browser.
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<h3><a name="pixmap_browser">pixmap_browser</h3>
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<tt>pixmap_browser</tt> tests the shared image interface. When using
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the same image multiple times <tt>Fl_Shared_Image</tt> will keep it
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only once in memory.
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<h3><a name="pixmap">pixmap</h3>
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This simple test shows the use of a LUT based pixmap as a
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label for a box widget. Pixmaps are stored in the X11 '.xpm'
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file format and can be part of the source code. Pixmaps support
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one transparent color.
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<h3><a name="preferences">preferences</h3>
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I do have my <tt>preferences</tt> in the morning, but sometimes I
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just can't remember a thing. This is where the <tt>Fl_Preferences</tt>
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come in handy. The remember any kind of data between program launches.
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<h3><a name="radio">radio</h3>
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The <tt>radio</tt> tool was created entirely with <i>fluid</i>. It
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shows some of the available btton types and tests radio
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button behavior.
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<h3><a name="resizebox">resizebox</h3>
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<tt>resizebox</tt> shows some possible ways of FLTK's automatic
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resize bahavior..
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<h3><a name="resize">resize</h3>
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The <tt>resize</tt> demo tests size and position functions with
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the given window manager.
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<h3><a name="scroll">scroll</h3>
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<tt>scroll</tt> shows how to scroll an area of widgets, one of
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them beeing a slow custom drawing. <tt>Fl_Scroll</tt> uses
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clipping and smart window area copying to improve redraw speed.
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The buttons at the bottom of the window test decoration rendering
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and updates.
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<h3><a name="shape">shape</h3>
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<tt>shape</tt> is a very minimal demo that shows how to create
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your own OpenGL rendering widget. Now that you know that, go ahead
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and write that flight simulator you always dreamt of.
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<h3><a name="subwindow">subwindow</h3>
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The <tt>subwindow</tt> demo tests messaging and drawing between
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the main window and 'true' sub windows. A sub window is differnt
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to a group by resetting the FLTK coordinate stystem to 0, 0 in the
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top left corner. On Win32 and X11, subwindows have their own
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operating system specific handle.
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<h3><a name="symbols">symbols</h3>
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<tt>symbols</tt> are a speciality of FLTK. These little vector
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drawings can be integrated into labels. They scale and rotate,
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and with a little patience, you can define your own. The rotation
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number refers to 45 degree rotations if you were looking at a
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numeric keypad (2 is down, 6 is right, etc.).
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<h3><a name="tabs">tabs</h3>
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The <tt>tabs</tt> tool was created with <i>fluid</i>. It tests
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correct hiding and redisplaying of tabs, navigation across tabs,
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resize behavior, and no unneeded redrawing of invisible widgets.
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<h3><a name="threads">threads</h3>
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FLTK can be used in a multithreading environment. There are some
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limitations, mostly due to the underlying operating system.
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<tt>threads</tt> show how to use <tt>Fl::lock()</tt>,
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<tt>Fl::unlock()</tt>, and <tt>Fl::awake()</tt> in secondary threads
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to keep FLTK happy. Although locking works on all platforms,
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this demo is not available on every machine.
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<h3><a name="tile">tile</h3>
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The <tt>tile</tt> tool shows a nice way of using <tt>Fl_Tile</tt>.
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To test correct resizing of subwindows, the widget for region
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1 is created from an <tt>Fl_Window</tt> class.
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<h3><a name="tiled_image">tiled_image</h3>
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The <tt>tiled_image</tt> demo uses an image as the background
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for a window by repeating it over the full size of the widget.
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Thw window is resizable and shows how the image gets repeated.
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<h3><a name="valuators">valuators</h3>
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<tt>valuators</tt> shows all of FLTK's nifty widgets to change
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numeric values.
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<h3><a name="fluid">fluid</h3>
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<tt>fuid</tt> is not only a big test program, but also a very
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useful visual UI designer. Many parts of <tt>fluid</tt> were
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created using <tt>fluid</tt>.
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