public class javax.swing.text.html
ImageView


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Java SE 6
  
Extends: View
Details
View of an Image, intended to support the HTML <IMG> tag. Supports scaling via the HEIGHT and WIDTH attributes of the tag. If the image is unable to be loaded any text specified via the ALT attribute will be rendered.

While this class has been part of swing for a while now, it is public as of 1.4.
version1.58 11/30/05
since1.4
See also javax.swing.text.IconView


Constructors
public ImageView(Element elem) Details
Creates a new view that represents an IMG element.
elemthe element to create a view for

Methods
public void changedUpdate(DocumentEvent e, Shape a, ViewFactory f)
Invoked when the Elements attributes have changed. Recreates the image.
public Shape modelToView(int pos, Shape a, Position.Bias b) throws BadLocationException Details
Provides a mapping from the document model coordinate space to the coordinate space of the view mapped to it.
posthe position to convert
athe allocated region to render into
returnthe bounding box of the given position
ThrowsBadLocationException: if the given position does not represent a valid location in the associated document
See also modelToView
public void paint(Graphics g, Shape a) Details
Paints the View.
gthe rendering surface to use
athe allocated region to render into
See also paint
public int viewToModel(float x, float y, Shape a, Position.Bias[] bias) Details
Provides a mapping from the view coordinate space to the logical coordinate space of the model.
xthe X coordinate
ythe Y coordinate
athe allocated region to render into
returnthe location within the model that best represents the given point of view
See also viewToModel

Properties
public float getAlignment(int axis) Details
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.
axismay be either X_AXIS or Y_AXIS
returnthe desired alignment; 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
public String getAltText()
Returns the text to display if the image can't be loaded. This is obtained from the Elements attribute set with the attribute name HTML.Attribute.ALT.
public AttributeSet getAttributes()
Fetches the attributes to use when rendering. This is implemented to multiplex the attributes specified in the model with a StyleSheet.
public Image getImage()
Returns the image to render.
public URL getImageURL()
Return a URL for the image source, or null if it could not be determined.
public Icon getLoadingImageIcon()
Returns the icon to use while in the process of loading the image.
public void setLoadsSynchronously(boolean newValue)
Sets how the image is loaded. If newValue is true, the image we be loaded when first asked for, otherwise it will be loaded asynchronously. The default is to not load synchronously, that is to load the image asynchronously.
public boolean getLoadsSynchronously()
Returns true if the image should be loaded when first asked for.
public Icon getNoImageIcon()
Returns the icon to use if the image couldn't be found.
public void setParent(View parent)
Establishes the parent view for this view. Seize this moment to cache the AWT Container I'm in.
public float getPreferredSpan(int axis) Details
Determines the preferred span for this view along an axis.
axismay be either X_AXIS or Y_AXIS
returnthe 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
protected void setPropertiesFromAttributes()
Update any cached values that come from attributes.
public void setSize(float width, float height) Details
Sets the size of the view. This should cause layout of the view if it has any layout duties.
widththe width >= 0the width >= 0
heightthe height >= 0the height >= 0
protected StyleSheet getStyleSheet()
Convenience method to get the StyleSheet.
public String getToolTipText(float x, float y, Shape allocation) Details
For images the tooltip text comes from text specified with the ALT attribute. This is overriden to return getAltText.
See also getToolTipText
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Java SE 6
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