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Class com.sun.java.swing.text.ComponentView
java.lang.Object
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+----com.sun.java.swing.text.AbstractView
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+----com.sun.java.swing.text.ComponentView
- public class ComponentView
- extends AbstractView
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.
-
ComponentView(Element, Component, ViewFactory)
- Creates a new JComponentView object.
-
changedUpdate(DocumentEvent, Shape, ViewFactory)
- Gives notification from the document that attributes were changed
in a location that this view is responsible for.
-
getPreferredShape(Shape, ViewFactory)
- Calculates the desired shape of the component.
-
insertUpdate(DocumentEvent, Shape, ViewFactory)
- Gives notification that something was inserted into the document
in a location that this view is responsible for.
-
modelToView(int, Shape, ViewFactory)
- Provides a mapping from the coordinate space of the model to
that of the view.
-
paint(Graphics, Shape, ViewFactory)
- The real paint behavior occurs naturally from the association
that the component has with it's parent container (the same
container hosting this view), so this simply allows us to
position the component properly relative to the view.
-
removeUpdate(DocumentEvent, Shape, ViewFactory)
- Gives notification that something was removed from the document
in a location that this view is responsible for.
-
viewToModel(Point, Shape, ViewFactory)
- Provides a mapping from the view coordinate space to the logical
coordinate space of the model.
ComponentView
public ComponentView(Element elem,
Component c,
ViewFactory f)
- Creates a new JComponentView object.
- Parameters:
- elem - the element to decorate
- c - the component
- f - the view factory
paint
public void paint(Graphics g,
Shape a,
ViewFactory f)
- The real paint behavior occurs naturally from the association
that the component has with it's 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
- f - the view factory
- Overrides:
- paint in class AbstractView
- See Also:
- paint
getPreferredShape
public Shape getPreferredShape(Shape candidate,
ViewFactory f)
- Calculates the desired shape of the component. The preferred
size of the component is used unless it doesn't fit within the
parents constraints. If it doesn't fit, it shrinks the
component to the maximum of either the constraint or the
mimimum size.
- Parameters:
- candidate - the candidate shape
- f - the view factory
- Returns:
- the desired shape
- Overrides:
- getPreferredShape in class AbstractView
- See Also:
- getPreferredShape
modelToView
public Shape modelToView(int pos,
Shape a,
ViewFactory f) 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
- f - the factory to use if children need to be created
- Returns:
- the bounding box of the given position is returned
- Throws: BadLocation
- if the given position does not represent a
valid location in the associated document
- Overrides:
- modelToView in class AbstractView
- See Also:
- modelToView
viewToModel
public int viewToModel(Point pt,
Shape a,
ViewFactory f)
- Provides a mapping from the view coordinate space to the logical
coordinate space of the model.
- Parameters:
- pt - the view location to convert
- a - the allocated region to render into
- f - the factory to use if children need to be created
- Returns:
- the location within the model that best represents
the given point in the view
- Overrides:
- viewToModel in class AbstractView
- See Also:
- viewToModel
insertUpdate
public void insertUpdate(DocumentEvent evnt,
Shape a,
ViewFactory f)
- Gives notification that something was inserted into the document
in a location that this view is responsible for.
- Parameters:
- evnt - the change information from the associated document
- a - the current allocation of the view
- f - the factory to use to rebuild if the view has children
- Overrides:
- insertUpdate in class AbstractView
removeUpdate
public void removeUpdate(DocumentEvent evnt,
Shape a,
ViewFactory f)
- Gives notification that something was removed from the document
in a location that this view is responsible for.
- Parameters:
- evnt - the change information from the associated document
- a - the current allocation of the view
- f - the factory to use to rebuild if the view has children
- Overrides:
- removeUpdate in class AbstractView
changedUpdate
public void changedUpdate(DocumentEvent e,
Shape a,
ViewFactory f)
- Gives notification from the document that attributes were changed
in a location that this view is responsible for.
- Parameters:
- e - the change information from the associated document
- a - the current allocation of the view
- f - the factory to use to rebuild if the view has children
- Overrides:
- changedUpdate in class AbstractView
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