IconView (Java 2 Platform SE 5.0) (original) (raw)

javax.swing.text

Class IconView

java.lang.Object extended by javax.swing.text.View javax.swing.text.IconView

All Implemented Interfaces:

public class IconView

extends View

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.

Field Summary

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
IconView(Element elem) Creates a new icon view that represents an element.

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](../../../javax/swing/text/IconView.html#modelToView%28int, java.awt.Shape, javax.swing.text.Position.Bias%29)(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](../../../javax/swing/text/IconView.html#paint%28java.awt.Graphics, java.awt.Shape%29)(Graphics g,Shape a) Paints the icon.
int	[viewToModel](../../../javax/swing/text/IconView.html#viewToModel%28float, float, java.awt.Shape, javax.swing.text.Position.Bias[]%29)(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 inherited from class javax.swing.text.View
append, [breakView](../../../javax/swing/text/View.html#breakView%28int, int, float, float%29), [changedUpdate](../../../javax/swing/text/View.html#changedUpdate%28javax.swing.event.DocumentEvent, java.awt.Shape, javax.swing.text.ViewFactory%29), [createFragment](../../../javax/swing/text/View.html#createFragment%28int, int%29), [forwardUpdate](../../../javax/swing/text/View.html#forwardUpdate%28javax.swing.event.DocumentEvent.ElementChange, javax.swing.event.DocumentEvent, java.awt.Shape, javax.swing.text.ViewFactory%29), [forwardUpdateToView](../../../javax/swing/text/View.html#forwardUpdateToView%28javax.swing.text.View, javax.swing.event.DocumentEvent, java.awt.Shape, javax.swing.text.ViewFactory%29), getAttributes, [getBreakWeight](../../../javax/swing/text/View.html#getBreakWeight%28int, float, float%29), [getChildAllocation](../../../javax/swing/text/View.html#getChildAllocation%28int, java.awt.Shape%29), getContainer, getDocument, getElement, getEndOffset, getGraphics, getMaximumSpan, getMinimumSpan, [getNextVisualPositionFrom](../../../javax/swing/text/View.html#getNextVisualPositionFrom%28int, javax.swing.text.Position.Bias, java.awt.Shape, int, javax.swing.text.Position.Bias[]%29), getParent, getResizeWeight, getStartOffset, [getToolTipText](../../../javax/swing/text/View.html#getToolTipText%28float, float, java.awt.Shape%29), getView, getViewCount, getViewFactory, [getViewIndex](../../../javax/swing/text/View.html#getViewIndex%28float, float, java.awt.Shape%29), [getViewIndex](../../../javax/swing/text/View.html#getViewIndex%28int, javax.swing.text.Position.Bias%29), [insert](../../../javax/swing/text/View.html#insert%28int, javax.swing.text.View%29), [insertUpdate](../../../javax/swing/text/View.html#insertUpdate%28javax.swing.event.DocumentEvent, java.awt.Shape, javax.swing.text.ViewFactory%29), isVisible, [modelToView](../../../javax/swing/text/View.html#modelToView%28int, javax.swing.text.Position.Bias, int, javax.swing.text.Position.Bias, java.awt.Shape%29), [modelToView](../../../javax/swing/text/View.html#modelToView%28int, java.awt.Shape%29), [preferenceChanged](../../../javax/swing/text/View.html#preferenceChanged%28javax.swing.text.View, boolean, boolean%29), remove, removeAll, [removeUpdate](../../../javax/swing/text/View.html#removeUpdate%28javax.swing.event.DocumentEvent, java.awt.Shape, javax.swing.text.ViewFactory%29), [replace](../../../javax/swing/text/View.html#replace%28int, int, javax.swing.text.View[]%29), setParent, [setSize](../../../javax/swing/text/View.html#setSize%28float, float%29), [updateChildren](../../../javax/swing/text/View.html#updateChildren%28javax.swing.event.DocumentEvent.ElementChange, javax.swing.event.DocumentEvent, javax.swing.text.ViewFactory%29), [updateLayout](../../../javax/swing/text/View.html#updateLayout%28javax.swing.event.DocumentEvent.ElementChange, javax.swing.event.DocumentEvent, java.awt.Shape%29), [viewToModel](../../../javax/swing/text/View.html#viewToModel%28float, float, java.awt.Shape%29)

Methods inherited from class javax.swing.text.View

append, [breakView](../../../javax/swing/text/View.html#breakView%28int, int, float, float%29), [changedUpdate](../../../javax/swing/text/View.html#changedUpdate%28javax.swing.event.DocumentEvent, java.awt.Shape, javax.swing.text.ViewFactory%29), [createFragment](../../../javax/swing/text/View.html#createFragment%28int, int%29), [forwardUpdate](../../../javax/swing/text/View.html#forwardUpdate%28javax.swing.event.DocumentEvent.ElementChange, javax.swing.event.DocumentEvent, java.awt.Shape, javax.swing.text.ViewFactory%29), [forwardUpdateToView](../../../javax/swing/text/View.html#forwardUpdateToView%28javax.swing.text.View, javax.swing.event.DocumentEvent, java.awt.Shape, javax.swing.text.ViewFactory%29), getAttributes, [getBreakWeight](../../../javax/swing/text/View.html#getBreakWeight%28int, float, float%29), [getChildAllocation](../../../javax/swing/text/View.html#getChildAllocation%28int, java.awt.Shape%29), getContainer, getDocument, getElement, getEndOffset, getGraphics, getMaximumSpan, getMinimumSpan, [getNextVisualPositionFrom](../../../javax/swing/text/View.html#getNextVisualPositionFrom%28int, javax.swing.text.Position.Bias, java.awt.Shape, int, javax.swing.text.Position.Bias[]%29), getParent, getResizeWeight, getStartOffset, [getToolTipText](../../../javax/swing/text/View.html#getToolTipText%28float, float, java.awt.Shape%29), getView, getViewCount, getViewFactory, [getViewIndex](../../../javax/swing/text/View.html#getViewIndex%28float, float, java.awt.Shape%29), [getViewIndex](../../../javax/swing/text/View.html#getViewIndex%28int, javax.swing.text.Position.Bias%29), [insert](../../../javax/swing/text/View.html#insert%28int, javax.swing.text.View%29), [insertUpdate](../../../javax/swing/text/View.html#insertUpdate%28javax.swing.event.DocumentEvent, java.awt.Shape, javax.swing.text.ViewFactory%29), isVisible, [modelToView](../../../javax/swing/text/View.html#modelToView%28int, javax.swing.text.Position.Bias, int, javax.swing.text.Position.Bias, java.awt.Shape%29), [modelToView](../../../javax/swing/text/View.html#modelToView%28int, java.awt.Shape%29), [preferenceChanged](../../../javax/swing/text/View.html#preferenceChanged%28javax.swing.text.View, boolean, boolean%29), remove, removeAll, [removeUpdate](../../../javax/swing/text/View.html#removeUpdate%28javax.swing.event.DocumentEvent, java.awt.Shape, javax.swing.text.ViewFactory%29), [replace](../../../javax/swing/text/View.html#replace%28int, int, javax.swing.text.View[]%29), setParent, [setSize](../../../javax/swing/text/View.html#setSize%28float, float%29), [updateChildren](../../../javax/swing/text/View.html#updateChildren%28javax.swing.event.DocumentEvent.ElementChange, javax.swing.event.DocumentEvent, javax.swing.text.ViewFactory%29), [updateLayout](../../../javax/swing/text/View.html#updateLayout%28javax.swing.event.DocumentEvent.ElementChange, javax.swing.event.DocumentEvent, java.awt.Shape%29), [viewToModel](../../../javax/swing/text/View.html#viewToModel%28float, float, java.awt.Shape%29)

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, [wait](../../../java/lang/Object.html#wait%28long, int%29)

Constructor Detail

IconView

public IconView(Element elem)

Creates a new icon view that represents an element.

Parameters:

elem - the element to create a view for

Method Detail

paint

public void paint(Graphics g, Shape a)

Paints 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.

Specified by:

[paint](../../../javax/swing/text/View.html#paint%28java.awt.Graphics, java.awt.Shape%29) in class [View](../../../javax/swing/text/View.html "class in javax.swing.text")

Parameters:

g - the rendering surface to use

a - the allocated region to render into

See Also:

[View.paint(java.awt.Graphics, java.awt.Shape)](../../../javax/swing/text/View.html#paint%28java.awt.Graphics, java.awt.Shape%29)

getPreferredSpan

public float getPreferredSpan(int axis)

Determines the preferred span for this view along an axis.

Specified by:

[getPreferredSpan](../../../javax/swing/text/View.html#getPreferredSpan%28int%29) in class [View](../../../javax/swing/text/View.html "class in javax.swing.text")

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](../../../java/lang/IllegalArgumentException.html "class in java.lang") - for an invalid axis

See Also:

View.getPreferredSpan(int)

getAlignment

public 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:

[getAlignment](../../../javax/swing/text/View.html#getAlignment%28int%29) in class [View](../../../javax/swing/text/View.html "class in javax.swing.text")

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.

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.

Specified by:

[modelToView](../../../javax/swing/text/View.html#modelToView%28int, java.awt.Shape, javax.swing.text.Position.Bias%29) in class [View](../../../javax/swing/text/View.html "class in javax.swing.text")

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; b will have one of these values:

Position.Bias.Forward
Position.Bias.Backward

Returns:

the bounding box of the given position

Throws:

[BadLocationException](../../../javax/swing/text/BadLocationException.html "class in javax.swing.text") - 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)](../../../javax/swing/text/View.html#modelToView%28int, java.awt.Shape, javax.swing.text.Position.Bias%29)

viewToModel

public int viewToModel(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.

Specified by:

[viewToModel](../../../javax/swing/text/View.html#viewToModel%28float, float, java.awt.Shape, javax.swing.text.Position.Bias[]%29) in class [View](../../../javax/swing/text/View.html "class in javax.swing.text")

Parameters:

x - the X coordinate >= 0

y - the Y coordinate >= 0

a - the allocated region to render into

Returns:

the location within the model that best represents the given point of view >= 0

See Also:

[View.viewToModel(float, float, java.awt.Shape, javax.swing.text.Position.Bias[])](../../../javax/swing/text/View.html#viewToModel%28float, float, java.awt.Shape, javax.swing.text.Position.Bias[]%29)

Submit a bug or feature
For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.