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JavaTM 2 Platform Std. Ed. v1.6.0
javax.swing.text
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Field Summary | |
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protected Rectangle |
childAlloc
A shape to use for the child allocation to avoid creating a lot of garbage. |
protected Rectangle |
lastAlloc
The last seen allocation (for repainting when changes are flushed upward). |
protected AsyncBoxView.ChildState |
lastValidOffset
The location of the last offset calculation that is valid. |
Constructor Summary | |
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AsyncBoxView.ChildLocator()
construct a child locator. |
Method Summary | |
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void |
childChanged(AsyncBoxView.ChildState cs)
Notification that a child changed. |
protected Shape |
getChildAllocation(int index)
Fetch the allocation to use for a child view. |
Shape |
getChildAllocation(int index,
Shape a)
Fetch the allocation to use for a child view. |
int |
getViewIndexAtPoint(float x,
float y,
Shape a)
Fetches the child view index at the given point. |
protected int |
getViewIndexAtVisualOffset(float targetOffset)
Locate the view responsible for an offset into the box along the major axis. |
void |
paintChildren(Graphics g)
Paint the children that intersect the clip area. |
protected void |
setAllocation(Shape a)
Copy the currently allocated shape into the Rectangle used to store the current allocation. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected AsyncBoxView.ChildState lastValidOffset
protected Rectangle lastAlloc
protected Rectangle childAlloc
Constructor Detail |
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public AsyncBoxView.ChildLocator()
Method Detail |
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public void childChanged(AsyncBoxView.ChildState cs)
public void paintChildren(Graphics g)
public Shape getChildAllocation(int index, Shape a)
public int getViewIndexAtPoint(float x, float y, Shape a)
x
- the X coordinate >= 0y
- the Y coordinate >= 0a
- the allocation to the View
protected Shape getChildAllocation(int index)
protected void setAllocation(Shape a)
protected int getViewIndexAtVisualOffset(float targetOffset)