java.lang.Object
javax.swing.text.View
javax.swing.text.PlainView
javax.swing.text.FieldView
- All Implemented Interfaces:
- SwingConstants,- TabExpander
- Direct Known Subclasses:
- PasswordView
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.
 If the hosting component is a JTextField, this view
 will manage the ranges of the associated BoundedRangeModel
 and will adjust the horizontal allocation to match the
 current visibility settings of the JTextField.
- See Also:
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Field SummaryFields declared in class javax.swing.text.ViewBadBreakWeight, ExcellentBreakWeight, ForcedBreakWeight, GoodBreakWeight, X_AXIS, Y_AXISFields declared in interface javax.swing.SwingConstantsBOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NEXT, NORTH, NORTH_EAST, NORTH_WEST, PREVIOUS, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST
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Constructor SummaryConstructors
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Method SummaryModifier and TypeMethodDescriptionprotected ShapeAdjusts the allocation given to the view to be a suitable allocation for a text field.protected FontMetricsFetches the font metrics associated with the component hosting this view.floatgetPreferredSpan(int axis) Determines the preferred span for this view along an axis.intgetResizeWeight(int axis) Determines the resizability of the view along the given axis.voidinsertUpdate(DocumentEvent changes, Shape a, ViewFactory f) Gives notification that something was inserted into the document in a location that this view is responsible for.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.voidRenders using the given rendering surface and area on that surface.voidremoveUpdate(DocumentEvent changes, Shape a, ViewFactory f) Gives notification that something was removed from the document in a location that this view is responsible for.intviewToModel(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 declared in class javax.swing.text.PlainViewchangedUpdate, damageLineRange, drawLine, drawLine, drawSelectedText, drawSelectedText, drawUnselectedText, drawUnselectedText, getLineBuffer, getTabSize, lineToRect, nextTabStop, setSize, updateDamage, updateMetricsMethods declared in class javax.swing.text.Viewappend, breakView, createFragment, forwardUpdate, forwardUpdateToView, getAlignment, getAttributes, getBreakWeight, getChildAllocation, getContainer, getDocument, getElement, getEndOffset, getGraphics, getMaximumSpan, getMinimumSpan, getNextVisualPositionFrom, getParent, getStartOffset, getToolTipText, getView, getViewCount, getViewFactory, getViewIndex, getViewIndex, insert, isVisible, modelToView, modelToView, preferenceChanged, remove, removeAll, replace, setParent, updateChildren, updateLayout, viewToModel
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Constructor Details- 
FieldViewConstructs a new FieldView wrapped on an element.- Parameters:
- elem- the element
 
 
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Method Details- 
getFontMetricsFetches the font metrics associated with the component hosting this view.- Returns:
- the metrics
 
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adjustAllocationAdjusts 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.
 
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paintRenders 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.
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getPreferredSpanpublic float getPreferredSpan(int axis) Determines the preferred span for this view along an axis.- Overrides:
- getPreferredSpanin class- PlainView
- Parameters:
- axis- may be either View.X_AXIS or View.Y_AXIS
- Returns:
- the span the view would like to be rendered into >= 0. Typically the view is told to render into the span that is returned, although there is no guarantee. The parent may choose to resize or break the view.
 
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getResizeWeightpublic int getResizeWeight(int axis) Determines the resizability of the view along the given axis. A value of 0 or less is not resizable.- Overrides:
- getResizeWeightin class- View
- Parameters:
- axis- View.X_AXIS or View.Y_AXIS
- Returns:
- the weight -> 1 for View.X_AXIS, else 0
 
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modelToViewProvides a mapping from the document model coordinate space to the coordinate space of the view mapped to it.- Overrides:
- modelToViewin class- PlainView
- Parameters:
- pos- the position to convert >= 0
- a- the allocated region to render into
- b- the bias toward the previous character or the next character represented by the offset, in case the position is a boundary of two views;- bwill have one of these values:-  Position.Bias.Forward
-  Position.Bias.Backward
 
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- 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:
 
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viewToModelProvides a mapping from the view coordinate space to the logical coordinate space of the model.- Overrides:
- viewToModelin class- PlainView
- Parameters:
- fx- the X coordinate >= 0.0f
- fy- the Y coordinate >= 0.0f
- a- the allocated region to render into
- bias- the returned bias
- Returns:
- the location within the model that best represents the given point in the view
- See Also:
 
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insertUpdateGives notification that something was inserted into the document in a location that this view is responsible for.- Overrides:
- insertUpdatein class- PlainView
- 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:
 
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removeUpdateGives notification that something was removed from the document in a location that this view is responsible for.- Overrides:
- removeUpdatein class- PlainView
- 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:
 
 
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