qtimagedrawer.html

这个是java的quicktime for java 的详细使用文档

<DD>QTCanvas calls this method when it needs to ask the client for its boundary.
 All values are in pixels.
 <br><DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../../quicktime/app/display/Drawable.html#getDisplayBounds()">getDisplayBounds</A></CODE> in interface <CODE><A HREF="../../../quicktime/app/display/Drawable.html">Drawable</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the boundary of the client</DL>
</DD>
</DL>
<HR>

<A NAME="redraw(quicktime.qd.Region)"><!-- --></A><H3>
redraw</H3>
<PRE>
public void <B>redraw</B>(<A HREF="../../../quicktime/qd/Region.html">Region</A>&nbsp;invalidRgn)
            throws <A HREF="../../../quicktime/QTException.html">QTException</A></PRE>
<DL>
<DD>QTCanvas calls this method when the client should redraw itself.
 If the canvas is able to discern that only a part of the client's 
 drawing area needs to be redrawn - then this area shall be passed in
 using the invalidRgn. Otherwise this will be null in which case the
 client should redraw itself entirely.
 <P>
 This call will just redraw the current image. If you want to
 have the Paintable client repaint itself then you must set the 
 redrawing flag to true.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../../quicktime/app/display/Drawable.html#redraw(quicktime.qd.Region)">redraw</A></CODE> in interface <CODE><A HREF="../../../quicktime/app/display/Drawable.html">Drawable</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>invalidRgn</CODE> - the invalidRgn that the client should redraw<DT><B>See Also: </B><DD><A HREF="../../../quicktime/app/image/QTImageDrawer.html#setRedrawing(boolean)"><CODE>setRedrawing(boolean)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setRedrawing(boolean)"><!-- --></A><H3>
setRedrawing</H3>
<PRE>
public void <B>setRedrawing</B>(boolean&nbsp;redrawFlag)</PRE>
<DL>
<DD>If true then the redraw method of the object will fetch new image data
 from its image source.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../../quicktime/app/image/Redrawable.html#setRedrawing(boolean)">setRedrawing</A></CODE> in interface <CODE><A HREF="../../../quicktime/app/image/Redrawable.html">Redrawable</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>redrawFlag</CODE> - boolean determining whether the current image is redrawn (false)
 of fresh or updated image data is first retrieved (true).</DL>
</DD>
</DL>
<HR>

<A NAME="isSingleFrame()"><!-- --></A><H3>
isSingleFrame</H3>
<PRE>
public boolean <B>isSingleFrame</B>()</PRE>
<DL>
<DD>Returns true if the Redrawable only has a single frame to render and thus
 will never need to re-acquire or redraw its image. Certain Redrawable objects
 are able to optimise their resources knowing this constraint.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../../quicktime/app/image/Redrawable.html#isSingleFrame()">isSingleFrame</A></CODE> in interface <CODE><A HREF="../../../quicktime/app/image/Redrawable.html">Redrawable</A></CODE></DL>
</DD>
<DD>Following copied from interface: <CODE>quicktime.app.image.Redrawable</CODE></DD>
<DD><DL>
<DT><B>Returns:</B><DD>a boolean</DL>
</DD>
</DL>
<HR>

<A NAME="isRedrawing()"><!-- --></A><H3>
isRedrawing</H3>
<PRE>
public boolean <B>isRedrawing</B>()</PRE>
<DL>
<DD>Returns true if the image data may be altered or different upon different calls
 of the redraw method of the QTDrawable interface<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../../quicktime/app/image/Redrawable.html#isRedrawing()">isRedrawing</A></CODE> in interface <CODE><A HREF="../../../quicktime/app/image/Redrawable.html">Redrawable</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="prepaint()"><!-- --></A><H3>
prepaint</H3>
<PRE>
public <A HREF="../../../quicktime/qd/Region.html">Region</A> <B>prepaint</B>()
                throws <A HREF="../../../quicktime/QTException.html">QTException</A></PRE>
<DL>
<DD>This method is used to paint the painter object's image and to grab
 the resulting pixels into a format that the QTImageDrawer can then
 draw using the quicktime drawing commands. It returns a Region
 that defins the areas of the pixel data that were changed from
 the call. It will call the Paintable's paint method.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>a Region or null if the QTImageDrawer does not yet have an
 offscreen java.awt.Image object to paint too.</DL>
</DD>
</DL>
<HR>

<A NAME="setGraphicsMode(quicktime.std.image.GraphicsMode)"><!-- --></A><H3>
setGraphicsMode</H3>
<PRE>
public void <B>setGraphicsMode</B>(<A HREF="../../../quicktime/std/image/GraphicsMode.html">GraphicsMode</A>&nbsp;mode)
                     throws <A HREF="../../../quicktime/QTException.html">QTException</A></PRE>
<DL>
<DD>This sets the GraphicsMode for the Compositor when it draws its composited 
 contents to its destination QDGraphics (typically the QTCanvas).<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../../quicktime/app/image/Compositable.html#setGraphicsMode(quicktime.std.image.GraphicsMode)">setGraphicsMode</A></CODE> in interface <CODE><A HREF="../../../quicktime/app/image/Compositable.html">Compositable</A></CODE></DL>
</DD>
<DD>Following copied from interface: <CODE>quicktime.app.image.Compositable</CODE></DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>gMode</CODE> - Specifies the graphics mode.</DL>
</DD>
</DL>
<HR>

<A NAME="getGraphicsMode()"><!-- --></A><H3>
getGraphicsMode</H3>
<PRE>
public <A HREF="../../../quicktime/std/image/GraphicsMode.html">GraphicsMode</A> <B>getGraphicsMode</B>()</PRE>
<DL>
<DD>This gets the current GraphicsMode for the compositor.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../../quicktime/app/image/Compositable.html#getGraphicsMode()">getGraphicsMode</A></CODE> in interface <CODE><A HREF="../../../quicktime/app/image/Compositable.html">Compositable</A></CODE></DL>
</DD>
<DD>Following copied from interface: <CODE>quicktime.app.image.Compositable</CODE></DD>
<DD><DL>
<DT><B>Returns:</B><DD>a Graphics mode object</DL>
</DD>
</DL>
<HR>

<A NAME="addedToCompositor(quicktime.app.anim.SWCompositor, quicktime.app.anim.TwoDSprite)"><!-- --></A><H3>
addedToCompositor</H3>
<PRE>
public <A HREF="../../../quicktime/app/actions/Invalidator.html">Invalidator</A> <B>addedToCompositor</B>(<A HREF="../../../quicktime/app/anim/SWCompositor.html">SWCompositor</A>&nbsp;c,
                                     <A HREF="../../../quicktime/app/anim/TwoDSprite.html">TwoDSprite</A>&nbsp;s)</PRE>
<DL>
<DD>Returns an object that invalidates a sprite. When a DynamicImage
 is a member of a SWompositor and the DynamicImage presents a
 changing image (for example a movie), the TwoDSprite that presents
 that image in the SWCompositor must be invalidated so that it will
 redraw the Sprites image in the next composit cycle. The Invalidator
 object is used to perform this function by the SWCompositor if the object
 itself cannot perform the invalidation.
 Can return null if the DynamicImage does not require the SWCompositor
 to invalidate it (or the object is in a state where its image won't change).
 <P>
 The Invalidators provided with objects that implement the DynamicImage
 interface will execute at the scale and period of the Compositor
 when they are created.
 <P>
 This call will not return an Invalidator if the QTImageDrawer is presenting
 a single frame image as the assumption is made that the image data is not changing.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../../quicktime/app/image/DynamicImage.html#addedToCompositor(quicktime.app.anim.SWCompositor, quicktime.app.anim.TwoDSprite)">addedToCompositor</A></CODE> in interface <CODE><A HREF="../../../quicktime/app/image/DynamicImage.html">DynamicImage</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>c</CODE> - the Compositor in which the DynamicImage is a member<DD><CODE>s</CODE> - the TwoDSprite that is presenting the DynamicImage's image in
 the Compositor. This is the sprite that must be invalidated.<DT><B>Returns:</B><DD>an Invalidator or null if invalidation is not required<DT><B>See Also: </B><DD><CODE>quicktime.app.display.SWCompositor</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="removedFromCompositor(quicktime.app.anim.SWCompositor)"><!-- --></A><H3>
removedFromCompositor</H3>
<PRE>
public void <B>removedFromCompositor</B>(<A HREF="../../../quicktime/app/anim/SWCompositor.html">SWCompositor</A>&nbsp;c)</PRE>
<DL>
<DD>When a dynamic image class is removed from a SWCompositor this
 method is called to allow the class to cleanup any of the invalidation
 processes it had established in the addedToCompositor call.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../../quicktime/app/image/DynamicImage.html#removedFromCompositor(quicktime.app.anim.SWCompositor)">removedFromCompositor</A></CODE> in interface <CODE><A HREF="../../../quicktime/app/image/DynamicImage.html">DynamicImage</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>c</CODE> - the SWCompositor it is being removed from</DL>
</DD>
</DL>
<HR>

<A NAME="addedTo(java.lang.Object)"><!-- --></A><H3>
addedTo</H3>
<PRE>
public void <B>addedTo</B>(java.lang.Object&nbsp;interest)</PRE>
<DL>
<DD>This method is called by the specified object when the instance of 
 the class that implements this interface is added to the object
 that is the source of the interest. If the object is a kind of
 java.awt.Component then an offscreen image is created from this Component
 and this Image is used as the pixel resource for a java.awt.Graphics object
 that is passed to the attached Paintable object. If not nothing is done.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../../quicktime/app/spaces/Listener.html#addedTo(java.lang.Object)">addedTo</A></CODE> in interface <CODE><A HREF="../../../quicktime/app/spaces/Listener.html">Listener</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>interest</CODE> - the object that is to be the source of interest for the
 the object that implements this interface.</DL>
</DD>
</DL>
<HR>

<A NAME="removedFrom(java.lang.Object)"><!-- --></A><H3>
removedFrom</H3>
<PRE>
public void <B>removedFrom</B>(java.lang.Object&nbsp;interest)</PRE>
<DL>
<DD>This method is called by the specified object when the instance of 
 the class that implements this interface is removed from the object
 that is the source of the interest. If the object is a kind of
 java.awt.Component then the cached java.awt.Image object that was
 created in the addedTo method is disposed of.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../../quicktime/app/spaces/Listener.html#removedFrom(java.lang.Object)">removedFrom</A></CODE> in interface <CODE><A HREF="../../../quicktime/app/spaces/Listener.html">Listener</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>interest</CODE> - the object that was the source of interest for the
 the object that implements this interface.</DL>
</DD>
</DL>
<HR>

<A NAME="addNotifyListener(quicktime.app.actions.NotifyListener)"><!-- --></A><H3>
addNotifyListener</H3>
<PRE>
public boolean <B>addNotifyListener</B>(<A HREF="../../../quicktime/app/actions/NotifyListener.html">NotifyListener</A>&nbsp;nl)</PRE>
<DL>
<DD>This registers the deferred listener.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../../quicktime/app/actions/Notifier.html#addNotifyListener(quicktime.app.actions.NotifyListener)">addNotifyListener</A></CODE> in interface <CODE><A HREF="../../../quicktime/app/actions/Notifier.html">Notifier</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>dl</CODE> - the listener that the DeferredListener notifies when
 its listen source becomes valid</DL>
</DD>
</DL>
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