Class java.awt.swing.text.ComponentView
java.lang.Object
|
+----java.awt.swing.text.View
|
+----java.awt.swing.text.ComponentView
- public class ComponentView
- extends View
Component decorator that implements the view interface. The
entire element is used to represent the component. This acts
as a gateway from the display-only View implementations to
interactive lightweight components (ie it allows components
to be embedded into the View hierarchy. The parent of the component
is the container that is handed out by the associated view
factory.
Method Summary
|
float
|
getAlignment(int axis)
Determines the desired alignment for this view along an
axis.
|
float
|
getPreferredSpan(int axis)
Determines the preferred span for this view along an
axis.
|
Shape
|
modelToView(int pos,
Shape a)
Provides a mapping from the coordinate space of the model to
that of the view.
|
void
|
paint(Graphics g,
Shape a)
Paints a component view.
|
void
|
setParent(View p)
Sets the parent for a child view.
|
void
|
setSize(float width,
float height)
Sets the size of the view.
|
int
|
viewToModel(float x,
float y,
Shape a)
Provides a mapping from the view coordinate space to the logical
coordinate space of the model.
|
Methods inherited from class java.awt.swing.text.View
|
breakView, changedUpdate, createFragment, getAlignment, getBreakWeight, getChildAllocation, getContainer, getDocument, getElement, getEndOffset, getParent, getPreferredSpan, getResizeWeight, getStartOffset, getView, getViewCount, getViewFactory, insertUpdate, modelToView, paint, preferenceChanged, removeUpdate, setParent, setSize, viewToModel |
Methods inherited from class java.lang.Object
|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
ComponentView
public ComponentView(Element elem)
- Creates a new JComponentView object.
- Parameters:
elem
- the element to decorate
paint
public void paint(Graphics g,
Shape a)
- Paints a component view.
The real paint behavior occurs naturally from the association
that the component has with its parent container (the same
container hosting this view), so this simply allows us to
position the component properly relative to the view. Since
the coordinate system for the view is simply the parent
containers, positioning the child component is easy.
- Parameters:
g
- the graphics context
a
- the shape
- Overrides:
- paint in class View
- See Also:
- paint
getPreferredSpan
public float getPreferredSpan(int axis)
- Determines the preferred span for this view along an
axis.
- Parameters:
axis
- may be either X_AXIS or Y_AXIS
- Overrides:
- getPreferredSpan in class View
getAlignment
public float getAlignment(int axis)
- Determines the desired alignment for this view along an
axis. This is implemented to give the alignment of the
embedded component.
- Parameters:
axis
- may be either X_AXIS or Y_AXIS
- Overrides:
- getAlignment in class View
setSize
public void setSize(float width,
float height)
- Sets the size of the view.
- Parameters:
width
- the width
height
- the height
- Overrides:
- setSize in class View
setParent
public void setParent(View p)
- Sets the parent for a child view.
The parent calls this on the child to tell it who its
parent is. If this is null, the view has been removed
and we need to remove the associated component from its
parent.
- Parameters:
p
- the parent
- Overrides:
- setParent in class View
modelToView
public Shape modelToView(int pos,
Shape a) throws BadLocationException
- Provides a mapping from the coordinate space of the model to
that of the view.
- Parameters:
pos
- the position to convert
a
- the allocated region to render into
- Returns:
- the bounding box of the given position is returned
- Throws:
- BadLocationException - if the given position does not
represent a valid location in the associated document
- Overrides:
- modelToView in class View
- See Also:
- modelToView
viewToModel
public int viewToModel(float x,
float y,
Shape a)
- Provides a mapping from the view coordinate space to the logical
coordinate space of the model.
- Parameters:
x
- the X coordinate
y
- 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 View
- See Also:
- viewToModel
Submit a bug or feature
Submit comments/suggestions about new javadoc look.
Java is a trademark or registered trademark of Sun Microsystems, Inc. in the US and other countries.
Copyright 1993-1998 Sun Microsystems, Inc. 901 San Antonio Road, Palo Alto, California, 94303, U.S.A. All Rights Reserved.