| 1 | <HTML> |
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| 2 | <HEAD> |
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| 3 | <TITLE>Fl_Slider</TITLE> |
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| 4 | </HEAD> |
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| 5 | <BODY> |
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| 6 | <!-- NEW PAGE --> |
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| 7 | <H2><A name=Fl_Slider>class Fl_Slider</A></H2> |
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| 8 | <HR> |
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| 9 | <H3>Class Hierarchy</H3> |
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| 10 | <UL> |
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| 11 | <PRE> |
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| 12 | <A href=Fl_Valuator.html#Fl_Valuator>Fl_Valuator</A> |
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| 13 | | |
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| 14 | +----<B>Fl_Slider</B> |
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| 15 | | |
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| 16 | +----<A href=Fl_Scrollbar.html#Fl_Scrollbar>Fl_Scrollbar</A>, <A href=Fl_Value_Slider.html#Fl_Value_Slider>Fl_Value_Slider</A> |
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| 17 | </PRE> |
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| 18 | </UL> |
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| 19 | <H3>Include Files</H3> |
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| 20 | <UL> |
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| 21 | <PRE> |
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| 22 | #include <FL/Fl_Slider.H> |
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| 23 | </PRE> |
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| 24 | </UL> |
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| 25 | <H3>Description</H3> |
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| 26 | The <TT>Fl_Slider</TT> widget contains a sliding knob inside a box. It |
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| 27 | if often used as a scrollbar. Moving the box all the way to the |
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| 28 | top/left sets it to the <TT>minimum()</TT>, and to the bottom/right to |
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| 29 | the <TT>maximum()</TT>. The <TT>minimum()</TT> may be greater than the <TT> |
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| 30 | maximum()</TT> to reverse the slider direction. |
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| 31 | <P ALIGN=CENTER><IMG src="slider.gif" ALT="Fl_Slider widget."></P> |
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| 32 | <H3>Methods</H3> |
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| 33 | <UL> |
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| 34 | <LI><A href=#Fl_Slider.Fl_Slider>Fl_Slider</A></LI> |
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| 35 | <LI><A href=#Fl_Slider.~Fl_Slider>~Fl_Slider</A></LI> |
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| 36 | <LI><A href=#Fl_Slider.scrollvalue>scrollvalue</A></LI> |
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| 37 | <LI><A href=#Fl_Slider.slider>slider</A></LI> |
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| 38 | <LI><A href=#Fl_Slider.slider_size>slider_size</A></LI> |
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| 39 | <LI><A href=#Fl_Slider.type>type</A></LI> |
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| 40 | </UL> |
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| 41 | <H4><A name=Fl_Slider.Fl_Slider>Fl_Slider::Fl_Slider(int x, int y, int |
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| 42 | w, int h, const char *label = 0)</A></H4> |
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| 43 | Creates a new <TT>Fl_Slider</TT> widget using the given position, |
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| 44 | size, and label string. The default boxtype is <TT>FL_DOWN_BOX</TT>. |
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| 45 | <H4><A name=Fl_Slider.~Fl_Slider>virtual Fl_Slider::~Fl_Slider()</A></H4> |
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| 46 | Destroys the valuator. |
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| 47 | <H4><A name=Fl_Slider.scrollvalue>int Fl_Slider::scrollvalue(int |
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| 48 | windowtop, int windowsize, int first, int totalsize)</A></H4> |
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| 49 | Returns <A href=Fl_Scrollbar.html#Fl_Scrollbar.value><TT> |
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| 50 | Fl_Scrollbar::value()</TT></A>. |
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| 51 | <H4><A name=Fl_Slider.slider>Fl_Boxtype Fl_Slider::slider() const |
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| 52 | <BR> void Fl_Slider::slider(Fl_Boxtype)</A></H4> |
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| 53 | Set the type of box to draw for the moving part of the slider. The |
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| 54 | color of the moving part (or of the notch in it for the nice sliders) |
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| 55 | is controlled by <TT>selection_color()</TT>. The default value of zero |
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| 56 | causes the slider to figure out what to draw from <TT>box()</TT>. |
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| 57 | <H4><A name=Fl_Slider.slider_size>float Fl_Slider::slider_size() const |
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| 58 | <BR> void Fl_Slider::slider_size(float)</A></H4> |
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| 59 | Get or set the dimensions of the moving piece of slider. This is the |
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| 60 | fraction of the size of the entire widget. If you set this to 1 then |
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| 61 | the slider cannot move. The default value is .08. |
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| 62 | <P>For the "fill" sliders this is the size of the area around the end |
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| 63 | that causes a drag effect rather than causing the slider to jump to the |
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| 64 | mouse. </P> |
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| 65 | <H4><A name=Fl_Slider.type>uchar Fl_Widget::type() const |
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| 66 | <BR> void Fl_Widget::type(uchar t)</A></H4> |
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| 67 | Setting this changes how the slider is drawn, which can be one of the |
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| 68 | following: |
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| 69 | <UL> |
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| 70 | <LI><TT>FL_VERTICAL</TT> - Draws a vertical slider (this is the |
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| 71 | default). </LI> |
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| 72 | <LI><TT>FL_HORIZONTAL</TT> - Draws a horizontal slider. </LI> |
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| 73 | <LI><TT>FL_VERT_FILL_SLIDER</TT> - Draws a filled vertical slider, |
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| 74 | useful as a progress or value meter. </LI> |
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| 75 | <LI><TT>FL_HOR_FILL_SLIDER</TT> - Draws a filled horizontal slider, |
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| 76 | useful as a progress or value meter. </LI> |
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| 77 | <LI><TT>FL_VERT_NICE_SLIDER</TT> - Draws a vertical slider with a nice |
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| 78 | looking control knob. </LI> |
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| 79 | <LI><TT>FL_HOR_NICE_SLIDER</TT> - Draws a horizontal slider with a |
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| 80 | nice looking control knob. </LI> |
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| 81 | </UL> |
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| 82 | </BODY></HTML> |
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