timer.html

这个是java的quicktime for java 的详细使用文档

<PRE>
public <B>Timer</B>(int&nbsp;scale,
             int&nbsp;period)
      throws <A HREF="../../../quicktime/QTException.html">QTException</A></PRE>
<DL>
<DD>Create a Timer.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>scale</CODE> - the scale of the timer's tickle invocation period<DD><CODE>period</CODE> - the number of scale size ticks that elapse between each invocation of the tickle method</DL>
</DD>
</DL>
<HR>

<A NAME="Timer(int, int, quicktime.app.time.Ticklish)"><!-- --></A><H3>
Timer</H3>
<PRE>
public <B>Timer</B>(int&nbsp;scale,
             int&nbsp;period,
             <A HREF="../../../quicktime/app/time/Ticklish.html">Ticklish</A>&nbsp;target)
      throws <A HREF="../../../quicktime/QTException.html">QTException</A></PRE>
<DL>
<DD>Create a Timer.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>scale</CODE> - the scale of the timer's tickle invocation period<DD><CODE>period</CODE> - the number of scale size ticks that elapse between each invocation of the tickle method<DD><CODE>target</CODE> - the Ticklish target of the Timer - if this is not null then the target's tickle and
 timeChanged method will be invoked by the Timer.</DL>
</DD>
</DL>
<HR>

<A NAME="Timer(int, int, quicktime.app.time.Ticklish, quicktime.std.movies.Movie)"><!-- --></A><H3>
Timer</H3>
<PRE>
public <B>Timer</B>(int&nbsp;scale,
             int&nbsp;period,
             <A HREF="../../../quicktime/app/time/Ticklish.html">Ticklish</A>&nbsp;target,
             <A HREF="../../../quicktime/std/movies/Movie.html">Movie</A>&nbsp;mov)
      throws <A HREF="../../../quicktime/QTException.html">QTException</A></PRE>
<DL>
<DD>Create a Timer.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>scale</CODE> - the scale of the timer's tickle invocation period<DD><CODE>period</CODE> - the number of scale size ticks that elapse between each invocation of the tickle method<DD><CODE>target</CODE> - the Ticklish target of the Timer - if this is not null then the target's tickle and
 timeChanged method will be invoked by the Timer.<DD><CODE>mov</CODE> - the Movie from which the TimeBase of the timer will be derived.</DL>
</DD>
</DL>

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<B>Method Detail</B></FONT></TD>
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<A NAME="isTicking()"><!-- --></A><H3>
isTicking</H3>
<PRE>
public boolean <B>isTicking</B>()</PRE>
<DL>
<DD>Returns true if the Timer's effective rate is currently non-zero<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>a boolean</DL>
</DD>
</DL>
<HR>

<A NAME="isTickling()"><!-- --></A><H3>
isTickling</H3>
<PRE>
public boolean <B>isTickling</B>()</PRE>
<DL>
<DD>Returns true if the Timer, when active, will tickle or false if the Timer, when active,
 will not tickle. This does not indicate whether the Timer is active.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>a boolean</DL>
</DD>
</DL>
<HR>

<A NAME="setTickling(boolean)"><!-- --></A><H3>
setTickling</H3>
<PRE>
public void <B>setTickling</B>(boolean&nbsp;flag)
                 throws <A HREF="../../../quicktime/std/StdQTException.html">StdQTException</A></PRE>
<DL>
<DD>Sets the tickle state of the Timer. If true then the Timer when active will tickle.
 If false then the Timer when active will not tickle. This does not activate or deactivate a Timer.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>flag</CODE> - a boolean</DL>
</DD>
</DL>
<HR>

<A NAME="getTicklish()"><!-- --></A><H3>
getTicklish</H3>
<PRE>
public <A HREF="../../../quicktime/app/time/Ticklish.html">Ticklish</A> <B>getTicklish</B>()</PRE>
<DL>
<DD>Returns the current target of the Targetable object - this is the object
 that the Targetable will act upon.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the current target</DL>
</DD>
</DL>
<HR>

<A NAME="getTimeBase()"><!-- --></A><H3>
getTimeBase</H3>
<PRE>
public final <A HREF="../../../quicktime/std/clocks/TimeBase.html">TimeBase</A> <B>getTimeBase</B>()</PRE>
<DL>
<DD>Returns the current time base that provides the time foundation
 of this object.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../../quicktime/app/time/Timeable.html#getTimeBase()">getTimeBase</A></CODE> in interface <CODE><A HREF="../../../quicktime/app/time/Timeable.html">Timeable</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>a TimeBase</DL>
</DD>
</DL>
<HR>

<A NAME="rescheduleTickle(int, int)"><!-- --></A><H3>
rescheduleTickle</H3>
<PRE>
public void <B>rescheduleTickle</B>(int&nbsp;scale,
                             int&nbsp;period)
                      throws <A HREF="../../../quicktime/QTException.html">QTException</A></PRE>
<DL>
<DD>This method will reschedule the Timer's callback mechanism to the new scale and
 period values. Scale cannot be zero. A zero period will disable any tickle.
 This will have the side-effect of resetting the isTickling state to true, so
 can be used to both reschedule a tickle call and ensure that a tickle will be sent.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>scale</CODE> - the new scale of the Timer's tickle notification<DD><CODE>period</CODE> - the number of scale ticks that will elapse between notifications.</DL>
</DD>
</DL>
<HR>

<A NAME="getScale()"><!-- --></A><H3>
getScale</H3>
<PRE>
public int <B>getScale</B>()</PRE>
<DL>
<DD>Returns the current scale of the Timer's tickle notification.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the scale</DL>
</DD>
</DL>
<HR>

<A NAME="getPeriod()"><!-- --></A><H3>
getPeriod</H3>
<PRE>
public int <B>getPeriod</B>()</PRE>
<DL>
<DD>Returns the current period (number of scale ticks) of the Timer's tickle notification.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the scale</DL>
</DD>
</DL>
<HR>

<A NAME="getRate()"><!-- --></A><H3>
getRate</H3>
<PRE>
public float <B>getRate</B>()</PRE>
<DL>
<DD>Returns the current rate of this Timer - this is the Timer's TimeBase rate. This
 may not be the actual or effective rate that the timer is ticking at if its TimeBase
 is slaved to another TimeBase<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../../quicktime/app/time/Timeable.html#getRate()">getRate</A></CODE> in interface <CODE><A HREF="../../../quicktime/app/time/Timeable.html">Timeable</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the current rate</DL>
</DD>
</DL>
<HR>

<A NAME="setRate(float)"><!-- --></A><H3>
setRate</H3>
<PRE>
public void <B>setRate</B>(float&nbsp;rate)</PRE>
<DL>
<DD>Sets the Timeable's playback rate. Typically a rate of zero will
 mean that the player is stopped, a positive value that the player
 is playing forwards. If the object implements the Playable interface
 setting a negative value will play the player backwards. However, if
 the object does not have a time line then a negative value will continue
 to play the object in a forwards direction.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../../quicktime/app/time/Timeable.html#setRate(float)">setRate</A></CODE> in interface <CODE><A HREF="../../../quicktime/app/time/Timeable.html">Timeable</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>rate</CODE> - the new playback rate.</DL>
</DD>
</DL>
<HR>

<A NAME="setActive(boolean)"><!-- --></A><H3>
setActive</H3>
<PRE>
public void <B>setActive</B>(boolean&nbsp;flag)
               throws <A HREF="../../../quicktime/QTException.html">QTException</A></PRE>
<DL>
<DD>Sets the active state of the Timer; only an active Timer will tickle.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>flag</CODE> - fi true the Timer is active, if false it is inactive</DL>
</DD>
</DL>
<HR>

<A NAME="isActive()"><!-- --></A><H3>
isActive</H3>
<PRE>
public boolean <B>isActive</B>()</PRE>
<DL>
<DD>Returns the current active state of the Timer.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>true if the Timer is active, or false if it is not</DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD>Return a string representation of this class.<DD><DL>
<DT><B>Overrides:</B><DD><CODE>toString</CODE> in class <CODE>java.lang.Object</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="timeChanged(int)"><!-- --></A><H3>
timeChanged</H3>
<PRE>
protected void <B>timeChanged</B>(int&nbsp;newTime)
                    throws <A HREF="../../../quicktime/QTException.html">QTException</A></PRE>
<DL>
<DD>This is called by the Timer itself when the time base of the Timer has
 changed, through being reset to a new time or through the effective rate
 of the Timer changing from positive to negative or vice versa<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>newTime</CODE> - the new time of the Timer's time line expressed in the Ticklish.kScale</DL>
</DD>
</DL>
<HR>

<A NAME="tickle(float, int)"><!-- --></A><H3>
tickle</H3>
<PRE>
protected boolean <B>tickle</B>(float&nbsp;er,
                         int&nbsp;time)
                  throws <A HREF="../../../quicktime/QTException.html">QTException</A></PRE>
<DL>
<DD>When the time from zero (or a timeChanged time value, or the previous tickle time) 
 that is specified by the scale and period of the Timer has elapsed the timer calls
 the tickle method. The Timer will only call this method if the Timer has an 
 effective rate that is not zero.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>er</CODE> - the effective or actual rate that the timer is ticking at.<DD><CODE>time</CODE> - the current time of the time base expressed in the Ticklish.kScale<DT><B>Returns:</B><DD>true if the Timer should remain active and tickle again or false if it should become inactive.</DL>
</DD>
</DL>
<HR>

<A NAME="finalize()"><!-- --></A><H3>
finalize</H3>
<PRE>
protected void <B>finalize</B>()
                 throws java.lang.Throwable</PRE>
<DL>
<DD>The finalize method deactivates the timer.<DD><DL>
<DT><B>Overrides:</B><DD><CODE>finalize</CODE> in class <CODE>java.lang.Object</CODE></DL>
</DD>
</DL>
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