asyncboxview.html

API資料大全

<DD><DL>
<DT><B>Parameters:</B><DD><CODE>child</CODE> - the child view<DD><CODE>width</CODE> - true if the width preference has changed<DD><CODE>height</CODE> - true if the height preference has changed<DT><B>See Also: </B><DD><A HREF="../../../javax/swing/JComponent.html#revalidate()"><CODE>JComponent.revalidate()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setSize(float, float)"><!-- --></A><H3>
setSize</H3>
<PRE>
public void <B>setSize</B>(float&nbsp;width,
                    float&nbsp;height)</PRE>
<DL>
<DD>Sets the size of the view.  This should cause 
 layout of the view, if it has any layout duties.
 <p>
 This is implemented to check and see if there has
 been a change in the minor span (since the view
 is flexible along the minor axis).  If there has
 been a change, this will add a high priorty task
 on the layout thread that will mark all of the
 ChildState records as needing to resize the child,
 and to spawn a bunch of low priority tasks to 
 fixup the children.
 <p>
 This method will normally be called by the 
 GUI event thread, which we don't want to slow
 down in any way if we can help it.  Pushing the 
 potentially time consuming task of marking each
 record frees the GUI thread, but also leaves the
 view open to paint attempts that can't be satisfied.
 The view is marked as <em>resizing</em> and the
 ResizeTask will turn off the flag when the children
 have all been marked.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../javax/swing/text/View.html#setSize(float, float)">setSize</A></CODE> in class <CODE><A HREF="../../../javax/swing/text/View.html">View</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>width</CODE> - the width >= 0<DD><CODE>height</CODE> - the height >= 0</DL>
</DD>
</DL>
<HR>

<A NAME="paint(java.awt.Graphics, java.awt.Shape)"><!-- --></A><H3>
paint</H3>
<PRE>
public void <B>paint</B>(<A HREF="../../../java/awt/Graphics.html">Graphics</A>&nbsp;g,
                  <A HREF="../../../java/awt/Shape.html">Shape</A>&nbsp;alloc)</PRE>
<DL>
<DD>Render the view using the given allocation and
 rendering surface.
 <p>
 This is implemented to determine whether or not the
 desired region to be rendered (i.e. the unclipped 
 area) is up to date or not.  If up-to-date the children
 are rendered.  If not up-to-date, a task to build
 the desired area is placed on the layout queue as
 a high priority task.  This keeps by event thread
 moving by rendering if ready, and postponing until
 a later time if not ready (since paint requests
 can be rescheduled).<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../javax/swing/text/View.html#paint(java.awt.Graphics, java.awt.Shape)">paint</A></CODE> in class <CODE><A HREF="../../../javax/swing/text/View.html">View</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>g</CODE> - the rendering surface to use<DD><CODE>alloc</CODE> - the allocated region to render into<DT><B>See Also: </B><DD><A HREF="../../../javax/swing/text/View.html#paint(java.awt.Graphics, java.awt.Shape)"><CODE>View.paint(java.awt.Graphics, java.awt.Shape)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getPreferredSpan(int)"><!-- --></A><H3>
getPreferredSpan</H3>
<PRE>
public float <B>getPreferredSpan</B>(int&nbsp;axis)</PRE>
<DL>
<DD>Determines the preferred span for this view along an
 axis.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../javax/swing/text/View.html#getPreferredSpan(int)">getPreferredSpan</A></CODE> in class <CODE><A HREF="../../../javax/swing/text/View.html">View</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>axis</CODE> - may be either View.X_AXIS or View.Y_AXIS<DT><B>Throws:</B><DD><CODE><A HREF="../../../java/lang/IllegalArgumentException.html">IllegalArgumentException</A></CODE> - for an invalid axis type</DL>
</DD>
</DL>
<HR>

<A NAME="getMinimumSpan(int)"><!-- --></A><H3>
getMinimumSpan</H3>
<PRE>
public float <B>getMinimumSpan</B>(int&nbsp;axis)</PRE>
<DL>
<DD>Determines the minimum span for this view along an
 axis.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../javax/swing/text/View.html#getMinimumSpan(int)">getMinimumSpan</A></CODE> in class <CODE><A HREF="../../../javax/swing/text/View.html">View</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>axis</CODE> - may be either View.X_AXIS or View.Y_AXIS<DT><B>Throws:</B><DD><CODE><A HREF="../../../java/lang/IllegalArgumentException.html">IllegalArgumentException</A></CODE> - for an invalid axis type</DL>
</DD>
</DL>
<HR>

<A NAME="getMaximumSpan(int)"><!-- --></A><H3>
getMaximumSpan</H3>
<PRE>
public float <B>getMaximumSpan</B>(int&nbsp;axis)</PRE>
<DL>
<DD>Determines the maximum span for this view along an
 axis.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../javax/swing/text/View.html#getMaximumSpan(int)">getMaximumSpan</A></CODE> in class <CODE><A HREF="../../../javax/swing/text/View.html">View</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>axis</CODE> - may be either View.X_AXIS or View.Y_AXIS<DT><B>Throws:</B><DD><CODE><A HREF="../../../java/lang/IllegalArgumentException.html">IllegalArgumentException</A></CODE> - for an invalid axis type</DL>
</DD>
</DL>
<HR>

<A NAME="getViewCount()"><!-- --></A><H3>
getViewCount</H3>
<PRE>
public int <B>getViewCount</B>()</PRE>
<DL>
<DD>Returns the number of views in this view.  Since
 the default is to not be a composite view this
 returns 0.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../javax/swing/text/View.html#getViewCount()">getViewCount</A></CODE> in class <CODE><A HREF="../../../javax/swing/text/View.html">View</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the number of views >= 0<DT><B>See Also: </B><DD><A HREF="../../../javax/swing/text/View.html#getViewCount()"><CODE>View.getViewCount()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getView(int)"><!-- --></A><H3>
getView</H3>
<PRE>
public <A HREF="../../../javax/swing/text/View.html">View</A> <B>getView</B>(int&nbsp;n)</PRE>
<DL>
<DD>Gets the nth child view.  Since there are no
 children by default, this returns null.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../javax/swing/text/View.html#getView(int)">getView</A></CODE> in class <CODE><A HREF="../../../javax/swing/text/View.html">View</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>n</CODE> - the number of the view to get, >= 0 && < getViewCount()<DT><B>Returns:</B><DD>the view</DL>
</DD>
</DL>
<HR>

<A NAME="getChildAllocation(int, java.awt.Shape)"><!-- --></A><H3>
getChildAllocation</H3>
<PRE>
public <A HREF="../../../java/awt/Shape.html">Shape</A> <B>getChildAllocation</B>(int&nbsp;index,
                                <A HREF="../../../java/awt/Shape.html">Shape</A>&nbsp;a)</PRE>
<DL>
<DD>Fetches the allocation for the given child view. 
 This enables finding out where various views
 are located, without assuming the views store
 their location.  This returns null since the
 default is to not have any child views.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../javax/swing/text/View.html#getChildAllocation(int, java.awt.Shape)">getChildAllocation</A></CODE> in class <CODE><A HREF="../../../javax/swing/text/View.html">View</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</CODE> - the index of the child, >= 0 && < getViewCount()<DD><CODE>a</CODE> - the allocation to this view.<DT><B>Returns:</B><DD>the allocation to the child</DL>
</DD>
</DL>
<HR>

<A NAME="getViewIndex(int, javax.swing.text.Position.Bias)"><!-- --></A><H3>
getViewIndex</H3>
<PRE>
public int <B>getViewIndex</B>(int&nbsp;pos,
                        <A HREF="../../../javax/swing/text/Position.Bias.html">Position.Bias</A>&nbsp;b)</PRE>
<DL>
<DD>Returns the child view index representing the given position in
 the model.  By default a view has no children so this is implemented
 to return -1 to indicate there is no valid child index for any
 position.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../javax/swing/text/View.html#getViewIndex(int, javax.swing.text.Position.Bias)">getViewIndex</A></CODE> in class <CODE><A HREF="../../../javax/swing/text/View.html">View</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>pos</CODE> - the position >= 0<DT><B>Returns:</B><DD>index of the view representing the given position, or 
   -1 if no view represents that position<DT><B>Since: </B><DD>1.3</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="modelToView(int, java.awt.Shape, javax.swing.text.Position.Bias)"><!-- --></A><H3>
modelToView</H3>
<PRE>
public <A HREF="../../../java/awt/Shape.html">Shape</A> <B>modelToView</B>(int&nbsp;pos,
                         <A HREF="../../../java/awt/Shape.html">Shape</A>&nbsp;a,
                         <A HREF="../../../javax/swing/text/Position.Bias.html">Position.Bias</A>&nbsp;b)
                  throws <A HREF="../../../javax/swing/text/BadLocationException.html">BadLocationException</A></PRE>
<DL>
<DD>Provides a mapping from the document model coordinate space
 to the coordinate space of the view mapped to it.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../javax/swing/text/View.html#modelToView(int, java.awt.Shape, javax.swing.text.Position.Bias)">modelToView</A></CODE> in class <CODE><A HREF="../../../javax/swing/text/View.html">View</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>pos</CODE> - the position to convert >= 0<DD><CODE>a</CODE> - the allocated region to render into<DD><CODE>b</CODE> - the bias toward the previous character or the
  next character represented by the offset, in case the 
  position is a boundary of two views.<DT><B>Returns:</B><DD>the bounding box of the given position is returned<DT><B>Throws:</B><DD><CODE><A HREF="../../../javax/swing/text/BadLocationException.html">BadLocationException</A></CODE> - if the given position does
   not represent a valid location in the associated document<DD><CODE><A HREF="../../../java/lang/IllegalArgumentException.html">IllegalArgumentException</A></CODE> - for an invalid bias argument<DT><B>See Also: </B><DD><A HREF="../../../javax/swing/text/View.html#viewToModel(float, float, java.awt.Shape, javax.swing.text.Position.Bias[])"><CODE>View.viewToModel(float, float, java.awt.Shape, javax.swing.text.Position.Bias[])</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="viewToModel(float, float, java.awt.Shape, javax.swing.text.Position.Bias[])"><!-- --></A><H3>
viewToModel</H3>
<PRE>
public int <B>viewToModel</B>(float&nbsp;x,
                       float&nbsp;y,
                       <A HREF="../../../java/awt/Shape.html">Shape</A>&nbsp;a,
                       <A HREF="../../../javax/swing/text/Position.Bias.html">Position.Bias</A>[]&nbsp;biasReturn)</PRE>
<DL>
<DD>Provides a mapping from the view coordinate space to the logical
 coordinate space of the model.  The biasReturn argument will be
 filled in to indicate that the point given is closer to the next
 character in the model or the previous character in the model.
 <p>
 This is expected to be called by the GUI thread, holding a 
 read-lock on the associated model.  It is implemented to
 locate the child view and determine it's allocation with a
 lock on the ChildLocator object, and to call viewToModel
 on the child view with a lock on the ChildState object 
 to avoid interaction with the layout thread.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../javax/swing/text/View.html#viewToModel(float, float, java.awt.Shape, javax.swing.text.Position.Bias[])">viewToModel</A></CODE> in class <CODE><A HREF="../../../javax/swing/text/View.html">View</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>x</CODE> - the X coordinate >= 0<DD><CODE>y</CODE> - the Y coordinate >= 0<DD><CODE>a</CODE> - the allocated region to render into<DT><B>Returns:</B><DD>the location within the model that best represents the
  given point in the view >= 0.  The biasReturn argument will be
 filled in to indicate that the point given is closer to the next
 character in the model or the previous character in the model.</DL>
</DD>
</DL>
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