d7b88a3bcc
Revision 1. git-svn-id: file:///fltk/svn/fltk/trunk@219 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
78 lines
3.4 KiB
HTML
78 lines
3.4 KiB
HTML
<HTML><BODY>
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<HR break>
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<H2><A name=Fl_Color_Chooser>class Fl_Color_Chooser</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_Group.html#Fl_Group>Fl_Group</A>
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+----<B>Fl_Color_Chooser</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_Color_Chooser.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_Color_Chooser</TT> widget provides a standard RGB color
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chooser. You can place any number of these into a panel of your own
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design. This widget contains the hue box, value slider, and rgb input
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fields from the above diagram (it does not have the color chips or the
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Cancel or OK buttons). The callback is done every time the user
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changes the rgb value. It is not done if they move the hue control in
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a way that produces the <I>same</I> rgb value, such as when saturation
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or value is zero.
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<H3>Methods</H3>
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<UL>
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<LI><A href=#Fl_Color_Chooser.Fl_Color_Chooser>Fl_Color_Chooser</A></LI>
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<LI><A href=#Fl_Color_Chooser.~Fl_Color_Chooser>~Fl_Color_Chooser</A></LI>
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<LI><A href=#Fl_Color_Chooser.add>add</A></LI>
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</UL>
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<H4><A name=Fl_Color_Chooser.Fl_Color_Chooser>
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Fl_Color_Chooser::Fl_Color_Chooser(int x, int y, int w, int h, const
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char *label = 0)</A></H4>
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Creates a new <TT>Fl_Color_Chooser</TT> widget using the given
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position, size, and label string. The recommended dimensions are
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200x95. The color is initialized to black.
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<H4><A name=Fl_Color_Chooser.~Fl_Color_Chooser>virtual
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Fl_Color_Chooser::~Fl_Color_Chooser()</A></H4>
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The destructor removes the color chooser and all of its controls.
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<H4><A name=Fl_Color_Chooser.hue>double Fl_Color_Chooser::hue() const</A>
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</H4>
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Return the current hue. 0 <= hue < 6. Zero is red, one is yellow,
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two is green, etc. <I>This value is convienent for the internal
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calculations - some other systems consider hue to run from zero to one,
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or from 0 to 360.</I>
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<H4><A name=Fl_Color_Chooser.saturation>double
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Fl_Color_Chooser::saturation() const</A></H4>
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Returns the saturation. 0 <= saturation <= 1.
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<H4><A name=Fl_Color_Chooser.value>double Fl_Color_Chooser::value()
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const</A></H4>
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Returns the value/brightness. 0 <= value <= 1.
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<H4><A name=Fl_Color_Chooser.r>double Fl_Color_Chooser::r() const</A></H4>
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Returns the current red value. 0 <= r <= 1.
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<H4><A name=Fl_Color_Chooser.g>double Fl_Color_Chooser::g() const</A></H4>
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Returns the current green value. 0 <= g <= 1.
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<H4><A name=Fl_Color_Chooser.b>double Fl_Color_Chooser::b() const</A></H4>
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Returns the current blue value. 0 <= b <= 1.
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<H4><A name=Fl_Color_Chooser.rgb>int Fl_Color_Chooser::rgb(double,
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double, double)</A></H4>
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Sets the current rgb color values. Does not do the callback. Does
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not clamp (but out of range values will produce psychedelic effects in
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the hue selector).
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<H4><A name=Fl_Color_Chooser.hsv>int
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Fl_Color_Chooser::hsv(double,double,double)</A></H4>
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Set the hsv values. The passed values are clamped (or for hue,
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modulus 6 is used) to get legal values. Does not do the callback.
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<H4><A name=Fl_Color_Chooser.hsv2rgb>static void
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Fl_Color_Chooser::hsv2rgb(double, double, double, double&, double&,
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double&)</A></H4>
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This <I>static</I> method converts HSV colors to RGB colorspace.
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<H4><A name=Fl_Color_Chooser.rgb2hsv>static void
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Fl_Color_Chooser::rgb2hsv(double, double, double, double&, double&,
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double&)</A></H4>
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This <I>static</I> method converts RGB colors to HSV colorspace. </BODY>
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</HTML> |