javax.swing.plaf.basic
Class BasicTextFieldUI.I18nFieldView

java.lang.Object
  javax.swing.text.View
      javax.swing.text.CompositeView
          javax.swing.text.BoxView
              javax.swing.text.FlowView
                  javax.swing.text.ParagraphView
                      javax.swing.plaf.basic.BasicTextFieldUI.I18nFieldView

All Implemented Interfaces:

SwingConstants, TabExpander

Enclosing class:

BasicTextFieldUI

static class BasicTextFieldUI.I18nFieldView

extends ParagraphView

A field view that support bidirectional text via the support provided by ParagraphView.

Nested Class Summary

Nested classes inherited from class javax.swing.text.ParagraphView

Nested classes inherited from class javax.swing.text.FlowView

FlowView.FlowStrategy

Field Summary

Fields inherited from class javax.swing.text.ParagraphView

firstLineIndent

Fields inherited from class javax.swing.text.FlowView

layoutPool, layoutSpan, strategy

Fields inherited from class javax.swing.text.BoxView

Fields inherited from class javax.swing.text.CompositeView

Fields inherited from class javax.swing.text.View

BadBreakWeight, ExcellentBreakWeight, ForcedBreakWeight, GoodBreakWeight, X_AXIS, Y_AXIS

Fields inherited from interface javax.swing.SwingConstants

BOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NEXT, NORTH, NORTH_EAST, NORTH_WEST, PREVIOUS, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST

Constructor Summary

(package private)

BasicTextFieldUI.I18nFieldView(Element elem)

Method Summary

(package private) Shape	adjustAllocation(Shape a) Adjusts the allocation given to the view to be a suitable allocation for a text field.
int	getFlowSpan(int index) Fetch the constraining span to flow against for the given child index.
int	getResizeWeight(int axis) Determines the resizability of the view along the given axis.
void	insertUpdate(DocumentEvent changes, Shape a, ViewFactory f) Gives notification that something was inserted into the document in a location that this view is responsible for.
(package private) static boolean	isLeftToRight(Component c)
Shape	modelToView(int p0, Position.Bias b0, int p1, Position.Bias b1, Shape a) Provides a mapping from the document model coordinate space to the coordinate space of the view mapped to it.
Shape	modelToView(int pos, Shape a, Position.Bias b) Provides a mapping from the document model coordinate space to the coordinate space of the view mapped to it.
void	paint(Graphics g, Shape a) Renders using the given rendering surface and area on that surface.
void	removeUpdate(DocumentEvent changes, Shape a, ViewFactory f) Gives notification that something was removed from the document in a location that this view is responsible for.
protected void	setJustification(int j) Sets the type of justification.
(package private) void	updateVisibilityModel() Update the visibility model with the associated JTextField (if there is one) to reflect the current visibility as a result of changes to the document model.
int	viewToModel(float fx, float fy, Shape a, Position.Bias[] bias) Provides a mapping from the view coordinate space to the logical coordinate space of the model.

Methods inherited from class javax.swing.text.ParagraphView

adjustRow, breakView, changedUpdate, createRow, findOffsetToCharactersInString, flipEastAndWestAtEnds, getAlignment, getBreakWeight, getClosestPositionTo, getFlowStart, getLayoutView, getLayoutViewCount, getNextNorthSouthVisualPositionFrom, getPartialSize, getTabBase, getTabSet, nextTabStop, setFirstLineIndent, setLineSpacing, setPropertiesFromAttributes

Methods inherited from class javax.swing.text.FlowView

calculateMinorAxisRequirements, getFlowAxis, getViewIndexAtPosition, layout, loadChildren

Methods inherited from class javax.swing.text.BoxView

baselineLayout, baselineRequirements, calculateMajorAxisRequirements, childAllocation, forwardUpdate, getAxis, getChildAllocation, getHeight, getMaximumSpan, getMinimumSpan, getOffset, getPreferredSpan, getSpan, getViewAtPoint, getWidth, isAfter, isAllocationValid, isBefore, isLayoutValid, layoutChanged, layoutMajorAxis, layoutMinorAxis, paintChild, preferenceChanged, replace, setAxis, setSize

Methods inherited from class javax.swing.text.CompositeView

getBottomInset, getInsideAllocation, getLeftInset, getNextEastWestVisualPositionFrom, getNextVisualPositionFrom, getRightInset, getTopInset, getView, getViewAtPosition, getViewCount, getViewIndex, setInsets, setParagraphInsets, setParent

Methods inherited from class javax.swing.text.View

append, breakView, createFragment, forwardUpdateToView, getAttributes, getBreakWeight, getContainer, getDocument, getElement, getEndOffset, getGraphics, getParent, getStartOffset, getToolTipText, getViewFactory, getViewIndex, insert, isVisible, modelToView, remove, removeAll, updateChildren, updateLayout, viewToModel

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BasicTextFieldUI.I18nFieldView

BasicTextFieldUI.I18nFieldView(Element elem)

Method Detail

getFlowSpan

public int getFlowSpan(int index)

Fetch the constraining span to flow against for the given child index. There is no limit for a field since it scrolls, so this is implemented to return Integer.MAX_VALUE.

Overrides:

getFlowSpan in class ParagraphView

Parameters:

index - the index of the view being queried

Returns:

the constraining span for the given view at index

setJustification

protected void setJustification(int j)

Description copied from class: ParagraphView

Sets the type of justification.

Overrides:

setJustification in class ParagraphView

Parameters:

j - one of the following values:

• StyleConstants.ALIGN_LEFT
• StyleConstants.ALIGN_CENTER
• StyleConstants.ALIGN_RIGHT

isLeftToRight

static boolean isLeftToRight(Component c)

adjustAllocation

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. Horizontally the view is adjusted according to the horizontal alignment property set on the associated JTextField (if that is the type of the hosting component).

Parameters:

a - the allocation given to the view, which may need to be adjusted.

Returns:

the allocation that the superclass should use.

updateVisibilityModel

void updateVisibilityModel()

Update the visibility model with the associated JTextField (if there is one) to reflect the current visibility as a result of changes to the document model. The bounded range properties are updated. If the view hasn't yet been shown the extent will be zero and we just set it to be full until determined otherwise.

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.

Overrides:

paint in class ParagraphView

Parameters:

g - the rendering surface to use

a - the allocated region to render into

See Also:

View.paint(java.awt.Graphics, java.awt.Shape)

getResizeWeight

public int getResizeWeight(int axis)

Determines the resizability of the view along the given axis. A value of 0 or less is not resizable.

Overrides:

getResizeWeight in class BoxView

Parameters:

axis - View.X_AXIS or View.Y_AXIS

Returns:

the weight -> 1 for View.X_AXIS, else 0

modelToView

public Shape modelToView(int pos,
                         Shape a,
                         Position.Bias b)
                  throws BadLocationException

Provides a mapping from the document model coordinate space to the coordinate space of the view mapped to it.

Overrides:

modelToView in class BoxView

Parameters:

pos - the position to convert >= 0

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

See Also:

View.modelToView(int, java.awt.Shape, javax.swing.text.Position.Bias)

modelToView

public Shape modelToView(int p0,
                         Position.Bias b0,
                         int p1,
                         Position.Bias b1,
                         Shape a)
                  throws BadLocationException

Provides a mapping from the document model coordinate space to the coordinate space of the view mapped to it.

Overrides:

modelToView in class CompositeView

Parameters:

p0 - the position to convert >= 0

b0 - the bias toward the previous character or the next character represented by p0, in case the position is a boundary of two views.

p1 - the position to convert >= 0

b1 - the bias toward the previous character or the next character represented by p1, in case the position is a boundary of two views.

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

IllegalArgumentException - for an invalid bias argument

See Also:

View.viewToModel(float, float, java.awt.Shape, javax.swing.text.Position.Bias[])

viewToModel

public int viewToModel(float fx,
                       float fy,
                       Shape a,
                       Position.Bias[] bias)

Provides a mapping from the view coordinate space to the logical coordinate space of the model.

Overrides:

viewToModel in class BoxView

Parameters:

fx - the X coordinate >= 0.0f

fy - the Y coordinate >= 0.0f

a - the allocated region to render into

Returns:

the location within the model that best represents the given point in the view

See Also:

View.viewToModel(float, float, java.awt.Shape, javax.swing.text.Position.Bias[])

insertUpdate

public void insertUpdate(DocumentEvent changes,
                         Shape a,
                         ViewFactory f)

Gives notification that something was inserted into the document in a location that this view is responsible for.

Overrides:

insertUpdate in class FlowView

Parameters:

changes - 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

See Also:

View.insertUpdate(javax.swing.event.DocumentEvent, java.awt.Shape, javax.swing.text.ViewFactory)

removeUpdate

public void removeUpdate(DocumentEvent changes,
                         Shape a,
                         ViewFactory f)

Gives notification that something was removed from the document in a location that this view is responsible for.

Overrides:

removeUpdate in class FlowView

Parameters:

changes - 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

See Also:

View.removeUpdate(javax.swing.event.DocumentEvent, java.awt.Shape, javax.swing.text.ViewFactory)