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Class java.awt.swing.text.FieldView

java.lang.Object
    |
    +----java.awt.swing.text.View
            |
            +----java.awt.swing.text.PlainView
                    |
                    +----java.awt.swing.text.FieldView

public class FieldView
extends PlainView
Extends the multi-line plain text view to be suitable for a single-line editor view. If the view is allocated extra space, the field must adjust for it.

See Also:
View

Constructor Index

 o FieldView(Element)
Constructs a new view wrapped on an element.

Method Index

 o adjustAllocation(Shape)
Adjusts the allocation given to the view to be a suitable allocation for a text field.
 o modelToView(int, Shape)
Provides a mapping from the document model coordinate space to the coordinate space of the view mapped to it.
 o paint(Graphics, Shape)
Renders using the given rendering surface and area on that surface.
 o viewToModel(float, float, Shape)
Provides a mapping from the view coordinate space to the logical coordinate space of the model.

Constructors

 o FieldView
public FieldView(Element elem)
Constructs a new view wrapped on an element.

Parameters:
elem - the element

Methods

 o paint
public void paint(Graphics g,
                  Shape a)
Renders using the given rendering surface and area on that surface. The view may need to do layout and create child views to enable itself to render into the given allocation.

Parameters:
g - the rendering surface to use
a - the allocated region to render into
Overrides:
paint in class PlainView
See Also:
paint
 o modelToView
public Shape modelToView(int pos,
                         Shape a) throws BadLocationException
Provides a mapping from the document model coordinate space to the coordinate space of the view mapped to it.

Parameters:
pos - the position to convert
a - the allocated region to render into
Returns:
the bounding box of the given position
Throws: BadLocationException
if the given position does not represent a valid location in the associated document
Overrides:
modelToView in class PlainView
See Also:
modelToView
 o viewToModel
public int viewToModel(float fx,
                       float fy,
                       Shape a)
Provides a mapping from the view coordinate space to the logical coordinate space of the model.

Parameters:
fx - the X coordinate
fy - the Y coordinate
a - the allocated region to render into
Returns:
the location within the model that best represents the given point in the view
Overrides:
viewToModel in class PlainView
See Also:
viewToModel
 o adjustAllocation
protected Shape adjustAllocation(Shape a)
Adjusts the allocation given to the view to be a suitable allocation for a text field. If the view has been allocated more than the preferred span vertically, the allocation is changed to be centered vertically.

Parameters:
a - the allocation given to the view, which may need to be adjusted.
Returns:
the allocation that the superclass should use.

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