java.lang.Object
javax.swing.text.View
javax.swing.text.IconView
- All Implemented Interfaces:
- SwingConstants
Icon decorator that implements the view interface.  The
 entire element is used to represent the icon.  This acts
 as a gateway from the display-only View implementations to
 interactive lightweight icons (that is, it allows icons
 to be embedded into the View hierarchy.  The parent of the icon
 is the container that is handed out by the associated view
 factory.
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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 TypeMethodDescriptionfloatgetAlignment(int axis) Determines the desired alignment for this view along an axis.floatgetPreferredSpan(int axis) Determines the preferred span for this view along an axis.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.voidPaints the icon.intviewToModel(float x, float y, 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.Viewappend, breakView, changedUpdate, createFragment, forwardUpdate, forwardUpdateToView, getAttributes, getBreakWeight, getChildAllocation, getContainer, getDocument, getElement, getEndOffset, getGraphics, getMaximumSpan, getMinimumSpan, getNextVisualPositionFrom, getParent, getResizeWeight, getStartOffset, getToolTipText, getView, getViewCount, getViewFactory, getViewIndex, getViewIndex, insert, insertUpdate, isVisible, modelToView, modelToView, preferenceChanged, remove, removeAll, removeUpdate, replace, setParent, setSize, updateChildren, updateLayout, viewToModel
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Constructor Details- 
IconViewCreates a new icon view that represents an element.- Parameters:
- elem- the element to create a view for
 
 
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Method Details- 
paintPaints the icon. The real paint behavior occurs naturally from the association that the icon has with its parent container (the same container hosting this view), so this simply allows us to position the icon properly relative to the view. Since the coordinate system for the view is simply the parent containers, positioning the child icon is easy.
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getPreferredSpanpublic float getPreferredSpan(int axis) Determines the preferred span for this view along an axis.- Specified by:
- getPreferredSpanin class- View
- Parameters:
- axis- may be either View.X_AXIS or View.Y_AXIS
- Returns:
- the span the view would like to be rendered into 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.
- Throws:
- IllegalArgumentException- for an invalid axis
 
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getAlignmentpublic float getAlignment(int axis) Determines the desired alignment for this view along an axis. This is implemented to give the alignment to the bottom of the icon along the y axis, and the default along the x axis.- Overrides:
- getAlignmentin class- View
- Parameters:
- axis- may be either View.X_AXIS or View.Y_AXIS
- Returns:
- the desired alignment >= 0.0f && <= 1.0f. This should be a value between 0.0 and 1.0 where 0 indicates alignment at the origin and 1.0 indicates alignment to the full span away from the origin. An alignment of 0.5 would be the center of the view.
 
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modelToViewProvides a mapping from the document model coordinate space to the coordinate space of the view mapped to it.- Specified by:
- modelToViewin class- View
- 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.- Specified by:
- viewToModelin class- View
- Parameters:
- x- the X coordinate >= 0
- y- the Y coordinate >= 0
- a- the allocated region to render into
- bias- the returned bias
- Returns:
- the location within the model that best represents the given point of view >= 0
- See Also:
 
 
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