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<?xml version="1.0"?>
<!DOCTYPE gsdoc PUBLIC "-//GNUstep//DTD gsdoc 1.0.4//EN" "http://www.gnustep.org/gsdoc-1_0_4.dtd">
<gsdoc base="NSScroller" up="Gui">
<head>
<title>NSScroller</title>
<author name="Ovidiu Predescu">
<email address="ovidiu@net-community.com">
ovidiu@net-community.com
</email>
</author>
<author name="Felipe A. Rodriguez">
<email address="far@ix.netcom.com">
far@ix.netcom.com
</email>
</author>
<author name="Richard Frith-Macdonald">
<email address="richard@brainstorm.co.uk">
richard@brainstorm.co.uk
</email>
</author>
<copy>1996 Free Software Foundation, Inc.</copy>
</head>
<body>
<front><contents /></front>
<chapter>
<heading>
Software documentation for the NSScroller class
</heading>
<class name="NSScroller" super="NSControl" ovadd="1.0.0">
<declared>AppKit/NSScroller.h</declared>
<conform>NSCoding</conform>
<desc>
<p>
TODO Description
</p>
</desc>
<ivariable type="SEL" name="_action" validity="protected" ovadd="1.0.0">
<desc>
<em>Warning</em> the underscore at the start of the
name of this instance variable indicates that, even
though it is not technically <em>private</em>, it is
intended for internal use within the package, and
you should not use the variable in other code.
</desc>
</ivariable>
<ivariable type="NSScrollArrowPosition" name="_arrowsPosition" validity="protected" ovadd="1.0.0">
<desc>
<em>Warning</em> the underscore at the start of the
name of this instance variable indicates that, even
though it is not technically <em>private</em>, it is
intended for internal use within the package, and
you should not use the variable in other code.
</desc>
</ivariable>
<ivariable type="double" name="_doubleValue" validity="protected" ovadd="1.0.0">
<desc>
<em>Warning</em> the underscore at the start of the
name of this instance variable indicates that, even
though it is not technically <em>private</em>, it is
intended for internal use within the package, and
you should not use the variable in other code.
</desc>
</ivariable>
<ivariable type="NSScrollerPart" name="_hitPart" validity="protected" ovadd="1.0.0">
<desc>
<em>Warning</em> the underscore at the start of the
name of this instance variable indicates that, even
though it is not technically <em>private</em>, it is
intended for internal use within the package, and
you should not use the variable in other code.
</desc>
</ivariable>
<ivariable type="CGFloat" name="_knobProportion" validity="protected" ovadd="1.0.0">
<desc>
<em>Warning</em> the underscore at the start of the
name of this instance variable indicates that, even
though it is not technically <em>private</em>, it is
intended for internal use within the package, and
you should not use the variable in other code.
</desc>
</ivariable>
<ivariable type="CGFloat" name="_pendingKnobProportion" validity="protected" ovadd="1.0.0">
<desc>
<em>Warning</em> the underscore at the start of the
name of this instance variable indicates that, even
though it is not technically <em>private</em>, it is
intended for internal use within the package, and
you should not use the variable in other code.
</desc>
</ivariable>
<ivariable type="id" name="_target" validity="protected" ovadd="1.0.0">
<desc>
<em>Warning</em> the underscore at the start of the
name of this instance variable indicates that, even
though it is not technically <em>private</em>, it is
intended for internal use within the package, and
you should not use the variable in other code.
</desc>
</ivariable>
<ivariable type="NSUsableScrollerParts" name="_usableParts" validity="protected" ovadd="1.0.0">
<desc>
<em>Warning</em> the underscore at the start of the
name of this instance variable indicates that, even
though it is not technically <em>private</em>, it is
intended for internal use within the package, and
you should not use the variable in other code.
</desc>
</ivariable>
<ivariable type="struct _scFlagsType" name="struct _scFlagsType" validity="protected" ovadd="1.0.0">
<desc>
<em>Description forthcoming.</em>
</desc>
</ivariable>
<method type="NSScrollerStyle" factory="yes" ovadd="10.7.0">
<sel>preferredScrollerStyle</sel>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="CGFloat" factory="yes" ovadd="1.0.0">
<sel>scrollerWidth</sel>
<desc>
<p>
Returns the NSScroller's width. By default 18.
</p>
<p>
Subclasses can override this to provide
different scrollbar width. But you may need to
also override
<ref type="method" id="-drawParts">
-drawParts
</ref>
.
</p>
</desc>
</method>
<method type="CGFloat" factory="yes" ovadd="10.0.0">
<sel>scrollerWidthForControlSize:</sel>
<arg type="NSControlSize">controlSize</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="NSScrollArrowPosition" ovadd="1.0.0">
<sel>arrowsPosition</sel>
<desc>
<p>
Returns the position of the NSScroller's arrows
used for scrolling By default the arrow position is
set to
<ref type="type" id="NSScrollArrowPosition">
NSScrollerArrowsMinEnd
</ref>
if the scrolletr is a horizontal scroller and
<ref type="type" id="NSScrollArrowPosition">
NSScrollerArrowsMaxEnd
</ref>
if the scroller is a vertical scroller. See
<ref type="type" id="NSScrollArrowPosition">
NSScrollArrowPosition
</ref>
for more informations.
</p>
<p>
See Also:
<ref type="method" id="-arrowsPosition">
-arrowsPosition
</ref>
</p>
</desc>
</method>
<method type="void" ovadd="1.0.0">
<sel>checkSpaceForParts</sel>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="NSControlSize" ovadd="10.0.0">
<sel>controlSize</sel>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="NSControlTint" ovadd="10.0.0">
<sel>controlTint</sel>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="void" ovadd="1.0.0">
<sel>drawArrow:</sel>
<arg type="NSScrollerArrow">whichButton</arg>
<sel>highlight:</sel>
<arg type="BOOL">flag</arg>
<desc>
<p>
(Un)Highlight the button specified by
<var>whichButton</var>. <var>whichButton</var>
should be
<ref type="type" id="NSScrollerArrow">
NSScrollerDecrementArrow
</ref>
or
<ref type="type" id="NSScrollerArrow">
NSScrollerIncrementArrow
</ref>
</p>
<p>
See Also:
<ref type="method" id="-setHighlighted:" class="NSCell">
[NSCell -setHighlighted:]
</ref>
<ref type="method" id="-drawWithFrame:inView:" class="NSCell">[NSCell -drawWithFrame:inView:]</ref>
</p>
</desc>
</method>
<method type="void" ovadd="1.0.0">
<sel>drawKnob</sel>
<desc>
<p>
Draws the knob
</p>
</desc>
</method>
<method type="void" ovadd="1.0.0">
<sel>drawKnobSlot</sel>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="void" ovadd="10.5.0">
<sel>drawKnobSlotInRect:</sel>
<arg type="NSRect">slotRect</arg>
<sel>highlight:</sel>
<arg type="BOOL">flag</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="void" ovadd="1.0.0">
<sel>drawParts</sel>
<desc>
Cache images for scroll arrows and knob. If you
override
<ref type="method" id="+scrollerWidth">
+scrollerWidth
</ref>
you may need to override this as well (to provide
images for the new width). However, if you do so,
you must currently also override
<ref type="method" id="-drawArrow:highlight:">
-drawArrow:highlight:
</ref>
and <ref type="method" id="-drawKnob:">-drawKnob:</ref>
.
</desc>
</method>
<method type="void" ovadd="1.0.0">
<sel>highlight:</sel>
<arg type="BOOL">flag</arg>
<desc>
<p>
Highlights the button whose under the mouse.
Does nothing if the mouse is not under a button
</p>
<p>
See Also:
<ref type="method" id="-drawArrow:highlight:">
-drawArrow:highlight:
</ref>
</p>
</desc>
</method>
<method type="NSScrollerPart" ovadd="1.0.0">
<sel>hitPart</sel>
<desc>
<p>
Returns the part of the NSScroller that have been
hit (mouse down) See
<ref type="type" id="NSScrollerPart">
NSScrollerPart
</ref>
for more information
</p>
<p>
See Also:
<ref type="method" id="-highlight:">
-highlight:
</ref>
<ref type="method" id="-mouseDown:" class="NSResponder">
[NSResponder -mouseDown:]
</ref>
</p>
</desc>
</method>
<method type="CGFloat" ovadd="1.0.0">
<sel>knobProportion</sel>
<desc>
<p>
Returns a <strong>float</strong> value (between
0.0 and 1.0) indicating the ratio between the
NSScroller length and the knob length
</p>
</desc>
</method>
<method type="NSRect" ovadd="1.0.0">
<sel>rectForPart:</sel>
<arg type="NSScrollerPart">partCode</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="void" ovadd="1.0.0">
<sel>setArrowsPosition:</sel>
<arg type="NSScrollArrowPosition">where</arg>
<desc>
<p>
Sets the position of the NSScroller arrows used for
scrolling to <var>where</var> and marks self
for display. By default the arrow position is set to
<ref type="type" id="NSScrollArrowPosition">
NSScrollerArrowsMinEnd
</ref>
if the scroller is a horizontal scroller and
<ref type="type" id="NSScrollArrowPosition">
NSScrollerArrowsMaxEnd
</ref>
if the scroller is a vertical scroller. See
<ref type="type" id="NSScrollArrowPosition">
NSScrollArrowPosition
</ref>
for more informations.
</p>
<p>
See Also:
<ref type="method" id="-arrowsPosition">
-arrowsPosition
</ref>
</p>
</desc>
</method>
<method type="void" ovadd="10.0.0">
<sel>setControlSize:</sel>
<arg type="NSControlSize">controlSize</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="void" ovadd="10.0.0">
<sel>setControlTint:</sel>
<arg type="NSControlTint">controlTint</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="void" ovadd="10.0.0" ovrem="10.5.0">
<sel>setFloatValue:</sel>
<arg type="float">aFloat</arg>
<sel>knobProportion:</sel>
<arg type="CGFloat">ratio</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="void" ovadd="10.5.0">
<sel>setKnobProportion:</sel>
<arg type="CGFloat">proportion</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="NSScrollerPart" ovadd="1.0.0">
<sel>testPart:</sel>
<arg type="NSPoint">thePoint</arg>
<desc>
<p>
Returns the NSScroller's part under the point
<var>thePoint</var>. See
<ref type="type" id="NSScrollerPart">
NSScrollerPart
</ref>
for more informations
</p>
</desc>
</method>
<method type="void" ovadd="1.0.0">
<sel>trackKnob:</sel>
<arg type="NSEvent*">theEvent</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="void" ovadd="1.0.0">
<sel>trackScrollButtons:</sel>
<arg type="NSEvent*">theEvent</arg>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
<method type="NSUsableScrollerParts" ovadd="1.0.0">
<sel>usableParts</sel>
<desc>
<em>Description forthcoming.</em>
</desc>
</method>
</class>
</chapter>
</body>
</gsdoc>
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