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correctly, but it is likely that someone who remembers their high school math could make it _much_ more efficient (I just hacked away 'till it worked). -Carl git-svn-id: file:///fltk/svn/fltk/trunk@376 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
50 lines
1.7 KiB
HTML
50 lines
1.7 KiB
HTML
<HTML><BODY>
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<HR break>
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<H2><A name=Fl_Dial>class Fl_Dial</A></H2>
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<HR>
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<H3>Class Hierarchy</H3>
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<UL>
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<PRE>
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<A href=Fl_Valuator.html#Fl_Valuator>Fl_Valuator</A>
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+----<B>Fl_Dial</B>
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</PRE>
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</UL>
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<H3>Include Files</H3>
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<UL>
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<PRE>
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#include <FL/Fl_Dial.H>
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</PRE>
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</UL>
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<H3>Description</H3>
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The <TT>Fl_Dial</TT> widget provides a circular dial to control a
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single floating point value.
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<H3>Methods</H3>
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<UL>
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<LI><A href=#Fl_Dial.Fl_Dial>Fl_Dial</A></LI>
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<LI><A href=#Fl_Dial.~Fl_Dial>~Fl_Dial</A></LI>
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<LI><A href=#Fl_Dial.angles>angles</A></LI>
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<LI><A href=#Fl_Dial.type>type</A></LI>
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</UL>
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<H4><A name=Fl_Dial.Fl_Dial>Fl_Dial::Fl_Dial(int x, int y, int w, int
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h, const char *label = 0)</A></H4>
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Creates a new <TT>Fl_Dial</TT> widget using the given position, size,
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and label string. The default type is <TT>FL_NORMAL_DIAL</TT>.
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<H4><A name=Fl_Dial.~Fl_Dial>virtual Fl_Dial::~Fl_Dial()</A></H4>
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Destroys the valuator.
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<H4><A name=Fl_Dial.angles>void Fl_Dial::angles(short a, short b)</A></H4>
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Sets the angles used for the minimum and maximum values. By default
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these are 225 and 135, respectively. (0 degrees is straight up and the
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angles progress clockwise.) The angles specified should be greater than
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or equal to 0 and less than 360. The progress of the dial always starts at
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the minimum angle and progresses clockwise to the maximum angle. Currently,
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counter-clockwise progression is not supported (but user code can always
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use 1/value()).
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<H4><A name=Fl_Dial.type>type(uchar)</A></H4>
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Sets the type of the dial to:
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<UL>
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<LI><TT>FL_NORMAL_DIAL</TT> - Draws a normal dial with a knob. </LI>
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<LI><TT>FL_LINE_DIAL</TT> - Draws a dial with a line. </LI>
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<LI><TT>FL_FILL_DIAL</TT> - Draws a dial with a filled arc. </LI>
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</UL>
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</BODY></HTML> |