102 lines
3.2 KiB
HTML
102 lines
3.2 KiB
HTML
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<html>
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<body>
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<hr break>
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<h2><a name="Fl_Slider">class Fl_Slider</a></h2>
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<hr>
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<h3>Class Hierarchy</h3>
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<ul><pre>
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<a href="#Fl_Valuator">Fl_Valuator</a>
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+----<b>Fl_Slider</b>
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+----<a href="#Fl_Scrollbar">Fl_Scrollbar</a>, <a href="#Fl_Value_Slider">Fl_Value_Slider</a>
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</pre></ul>
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<h3>Include Files</h3>
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<ul><pre>
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#include <FL/Fl_Slider.H>
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</pre></ul>
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<h3>Description</h3>
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The <tt>Fl_Slider</tt> widget contains a sliding knob inside a box. It
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if often used as a scrollbar. Moving the box all the way to the
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top/left sets it to the <tt>minimum()</tt>, and to the bottom/right to
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the <tt>maximum()</tt>. The <tt>minimum()</tt> may be greater than the
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<tt>maximum()</tt> to reverse the slider direction.
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<h3>Methods</h3>
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<ul>
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<li><a href="#Fl_Slider.Fl_Slider">Fl_Slider</a>
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<li><a href="#Fl_Slider.~Fl_Slider">~Fl_Slider</a>
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<li><a href="#Fl_Slider.scrollvalue">scrollvalue</a>
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<li><a href="#Fl_Slider.slider">slider</a>
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<li><a href="#Fl_Slider.slider_size">slider_size</a>
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<li><a href="#Fl_Slider.type">type</a>
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</ul>
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<h4><a name="Fl_Slider.Fl_Slider">Fl_Slider::Fl_Slider(int x, int y, int w, int h, const char *label = 0)</a></h4>
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Creates a new <tt>Fl_Slider</tt> widget using the given position, size, and
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label string. The default boxtype is <tt>FL_NO_BOX</tt>.
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<h4><a name="Fl_Slider.~Fl_Slider">virtual Fl_Slider::~Fl_Slider()</a></h4>
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Destroys the valuator.
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<h4><a name="Fl_Slider.scrollvalue">int Fl_Slider::scrollvalue(int windowtop, int windowsize, int first, int totalsize)</a></h4>
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Returns <a href="#Fl_Scrollbar.value"><tt>Fl_Scrollbar::value()</tt></a>.
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<h4><a name="Fl_Slider.">Fl_Boxtype Fl_Slider::slider() const<br>
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void Fl_Slider::slider(Fl_Boxtype)</a></h4>
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Set the type of box to draw for the moving part of the slider. The
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color of the moving part (or of the notch in it for the nice sliders)
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is controlled by <tt>selection_color()</tt>. The default value of zero
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causes the slider to figure out what to draw from <tt>box()</tt>.
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<h4><a name="Fl_Slider.slider_size">float Fl_Slider::slider_size() const<br>
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void Fl_Slider::slider_size(float)</a></h4>
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Get or set the dimensions of the moving piece of slider. This is the
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fraction of the size of the entire widget. If you set this to 1 then
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the slider cannot move. The default value is .08.
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<p>For the "fill" sliders this is the size of the area around the end
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that causes a drag effect rather than causing the slider to jump to
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the mouse.
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<h4><a name="Fl_Slider.type">uchar Fl_Widget::type() const<br>
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void Fl_Widget::type(uchar t)</a></h4>
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Setting this changes how the slider is drawn, which can be one of the following:
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<ul>
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<li><tt>FL_VERTICAL</tt> - Draws a vertical slider (this is the default).
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<li><tt>FL_HORIZONTAL</tt> - Draws a horizontal slider.
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<li><tt>FL_VERT_FILL_SLIDER</tt> - Draws a filled vertical
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slider, useful as a progress or value meter.
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<li><tt>FL_HOR_FILL_SLIDER</tt> - Draws a filled horizontal
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slider, useful as a progress or value meter.
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<li><tt>FL_VERT_NICE_SLIDER</tt> - Draws a vertical slider with
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a nice looking control knob.
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<li><tt>FL_HOR_NICE_SLIDER</tt> - Draws a horizontal slider with
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a nice looking control knob.
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</ul>
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</body>
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</html>
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