File	Doc	Category	Size	Date	Package
View.java	API Doc	Java SE 6 API	49267	Tue Jun 10 00:26:58 BST 2008	javax.swing.text

View

• java.lang.Object

Fields Summary
public static final int	BadBreakWeight The weight to indicate a view is a bad break opportunity for the purpose of formatting. This value indicates that no attempt should be made to break the view into fragments as the view has not been written to support fragmenting.
public static final int	GoodBreakWeight The weight to indicate a view supports breaking, but better opportunities probably exist.
public static final int	ExcellentBreakWeight The weight to indicate a view supports breaking, and this represents a very attractive place to break.
public static final int	ForcedBreakWeight The weight to indicate a view supports breaking, and must be broken to be represented properly when placed in a view that formats its children by breaking them.
public static final int	X_AXIS Axis for format/break operations.
public static final int	Y_AXIS Axis for format/break operations.
static final Position$Bias[]	sharedBiasReturn
private View	parent
private Element	elem

Constructors Summary
public View(Element elem) Creates a new View object. param elem the Element to represent this.elem = elem;

Methods Summary
public void	append(javax.swing.text.View v) Appends a single child view. This is a convenience call to replace. param v the view see #replace since 1.3 View[] one = new View[1]; one[0] = v; replace(getViewCount(), 0, one);
public javax.swing.text.View	breakView(int axis, int offset, float pos, float len) Tries to break this view on the given axis. This is called by views that try to do formatting of their children. For example, a view of a paragraph will typically try to place its children into row and views representing chunks of text can sometimes be broken down into smaller pieces. This is implemented to return the view itself, which represents the default behavior on not being breakable. If the view does support breaking, the starting offset of the view returned should be the given offset, and the end offset should be less than or equal to the end offset of the view being broken. param axis may be either View.X_AXIS or View.Y_AXIS param offset the location in the document model that a broken fragment would occupy >= 0. This would be the starting offset of the fragment returned param pos the position along the axis that the broken view would occupy >= 0. This may be useful for things like tab calculations param len specifies the distance along the axis where a potential break is desired >= 0 return the fragment of the view that represents the given span, if the view can be broken. If the view doesn't support breaking behavior, the view itself is returned. see ParagraphView return this;
public void	changedUpdate(javax.swing.event.DocumentEvent e, java.awt.Shape a, javax.swing.text.ViewFactory f) Gives notification from the document that attributes were changed in a location that this view is responsible for. To reduce the burden to subclasses, this functionality is spread out into the following calls that subclasses can reimplement: updateChildren is called if there were any changes to the element this view is responsible for. If this view has child views that are represent the child elements, then this method should do whatever is necessary to make sure the child views correctly represent the model. forwardUpdate is called to forward the DocumentEvent to the appropriate child views. updateLayout is called to give the view a chance to either repair its layout, to reschedule layout, or do nothing. param e the change information from the associated document param a the current allocation of the view param f the factory to use to rebuild if the view has children see View#changedUpdate if (getViewCount() > 0) { Element elem = getElement(); DocumentEvent.ElementChange ec = e.getChange(elem); if (ec != null) { if (! updateChildren(ec, e, f)) { // don't consider the element changes they // are for a view further down. ec = null; } } forwardUpdate(ec, e, a, f); updateLayout(ec, e, a); }
public javax.swing.text.View	createFragment(int p0, int p1) Creates a view that represents a portion of the element. This is potentially useful during formatting operations for taking measurements of fragments of the view. If the view doesn't support fragmenting (the default), it should return itself. param p0 the starting offset >= 0. This should be a value greater or equal to the element starting offset and less than the element ending offset. param p1 the ending offset > p0. This should be a value less than or equal to the elements end offset and greater than the elements starting offset. return the view fragment, or itself if the view doesn't support breaking into fragments see LabelView return this;
protected void	forwardUpdate(javax.swing.event.DocumentEvent$ElementChange ec, javax.swing.event.DocumentEvent e, java.awt.Shape a, javax.swing.text.ViewFactory f) Forwards the given DocumentEvent to the child views that need to be notified of the change to the model. If there were changes to the element this view is responsible for, that should be considered when forwarding (i.e. new child views should not get notified). param ec changes to the element this view is responsible for (may be null if there were no changes). param e the change information from the associated document param a the current allocation of the view param f the factory to use to rebuild if the view has children see #insertUpdate see #removeUpdate see #changedUpdate since 1.3 Element elem = getElement(); int pos = e.getOffset(); int index0 = getViewIndex(pos, Position.Bias.Forward); if (index0 == -1 && e.getType() == DocumentEvent.EventType.REMOVE && pos >= getEndOffset()) { // Event beyond our offsets. We may have represented this, that is // the remove may have removed one of our child Elements that // represented this, so, we should foward to last element. index0 = getViewCount() - 1; } int index1 = index0; View v = (index0 >= 0) ? getView(index0) : null; if (v != null) { if ((v.getStartOffset() == pos) && (pos > 0)) { // If v is at a boundary, forward the event to the previous // view too. index0 = Math.max(index0 - 1, 0); } } if (e.getType() != DocumentEvent.EventType.REMOVE) { index1 = getViewIndex(pos + e.getLength(), Position.Bias.Forward); if (index1 < 0) { index1 = getViewCount() - 1; } } int hole0 = index1 + 1; int hole1 = hole0; Element[] addedElems = (ec != null) ? ec.getChildrenAdded() : null; if ((addedElems != null) && (addedElems.length > 0)) { hole0 = ec.getIndex(); hole1 = hole0 + addedElems.length - 1; } // forward to any view not in the forwarding hole // formed by added elements (i.e. they will be updated // by initialization. index0 = Math.max(index0, 0); for (int i = index0; i <= index1; i++) { if (! ((i >= hole0) && (i <= hole1))) { v = getView(i); if (v != null) { Shape childAlloc = getChildAllocation(i, a); forwardUpdateToView(v, e, childAlloc, f); } } }
protected void	forwardUpdateToView(javax.swing.text.View v, javax.swing.event.DocumentEvent e, java.awt.Shape a, javax.swing.text.ViewFactory f) Forwards the DocumentEvent to the give child view. This simply messages the view with a call to insertUpdate, removeUpdate, or changedUpdate depending upon the type of the event. This is called by forwardUpdate to forward the event to children that need it. param v the child view to forward the event to param e the change information from the associated document param a the current allocation of the view param f the factory to use to rebuild if the view has children see #forwardUpdate since 1.3 DocumentEvent.EventType type = e.getType(); if (type == DocumentEvent.EventType.INSERT) { v.insertUpdate(e, a, f); } else if (type == DocumentEvent.EventType.REMOVE) { v.removeUpdate(e, a, f); } else { v.changedUpdate(e, a, f); }
public float	getAlignment(int axis) Determines the desired alignment for this view along an axis. The desired alignment is returned. This should be a value >= 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. param axis may be either View.X_AXIS or View.Y_AXIS return the value 0.5 return 0.5f;
public javax.swing.text.AttributeSet	getAttributes() Fetches the attributes to use when rendering. By default this simply returns the attributes of the associated element. This method should be used rather than using the element directly to obtain access to the attributes to allow view-specific attributes to be mixed in or to allow the view to have view-specific conversion of attributes by subclasses. Each view should document what attributes it recognizes for the purpose of rendering or layout, and should always access them through the AttributeSet returned by this method. return elem.getAttributes();
public int	getBreakWeight(int axis, float pos, float len) Determines how attractive a break opportunity in this view is. This can be used for determining which view is the most attractive to call breakView on in the process of formatting. A view that represents text that has whitespace in it might be more attractive than a view that has no whitespace, for example. The higher the weight, the more attractive the break. A value equal to or lower than BadBreakWeight should not be considered for a break. A value greater than or equal to ForcedBreakWeight should be broken. This is implemented to provide the default behavior of returning BadBreakWeight unless the length is greater than the length of the view in which case the entire view represents the fragment. Unless a view has been written to support breaking behavior, it is not attractive to try and break the view. An example of a view that does support breaking is LabelView. An example of a view that uses break weight is ParagraphView. param axis may be either View.X_AXIS or View.Y_AXIS param pos the potential location of the start of the broken view >= 0. This may be useful for calculating tab positions param len specifies the relative length from pos where a potential break is desired >= 0 return the weight, which should be a value between ForcedBreakWeight and BadBreakWeight see LabelView see ParagraphView see #BadBreakWeight see #GoodBreakWeight see #ExcellentBreakWeight see #ForcedBreakWeight if (len > getPreferredSpan(axis)) { return GoodBreakWeight; } return BadBreakWeight;
public java.awt.Shape	getChildAllocation(int index, java.awt.Shape a) Fetches the allocation for the given child view. This enables finding out where various views are located, without assuming how the views store their location. This returns null since the default is to not have any child views. param index the index of the child, >= 0 && < getViewCount() param a the allocation to this view return the allocation to the child return null;
public java.awt.Container	getContainer() Fetches the container hosting the view. This is useful for things like scheduling a repaint, finding out the host components font, etc. The default implementation of this is to forward the query to the parent view. return the container, null if none View v = getParent(); return (v != null) ? v.getContainer() : null;
public javax.swing.text.Document	getDocument() Fetches the model associated with the view. return the view model, null if none see View#getDocument return elem.getDocument();
public javax.swing.text.Element	getElement() Fetches the structural portion of the subject that this view is mapped to. The view may not be responsible for the entire portion of the element. return the subject see View#getElement return elem;
public int	getEndOffset() Fetches the portion of the model for which this view is responsible. return the ending offset into the model >= 0 see View#getEndOffset return elem.getEndOffset();
public java.awt.Graphics	getGraphics() Fetch a Graphics for rendering. This can be used to determine font characteristics, and will be different for a print view than a component view. return a Graphics object for rendering since 1.3 // PENDING(prinz) this is a temporary implementation Component c = getContainer(); return c.getGraphics();
public float	getMaximumSpan(int axis) Determines the maximum span for this view along an axis. param axis may be either View.X_AXIS or View.Y_AXIS return the maximum span the view can be rendered into see View#getPreferredSpan int w = getResizeWeight(axis); if (w == 0) { // can't resize return getPreferredSpan(axis); } return Integer.MAX_VALUE;
public float	getMinimumSpan(int axis) Determines the minimum span for this view along an axis. param axis may be either View.X_AXIS or View.Y_AXIS return the minimum span the view can be rendered into see View#getPreferredSpan int w = getResizeWeight(axis); if (w == 0) { // can't resize return getPreferredSpan(axis); } return 0;
public int	getNextVisualPositionFrom(int pos, javax.swing.text.Position$Bias b, java.awt.Shape a, int direction, javax.swing.text.Position$Bias[] biasRet) Provides a way to determine the next visually represented model location at which one might place a caret. Some views may not be visible, they might not be in the same order found in the model, or they just might not allow access to some of the locations in the model. param pos the position to convert >= 0 param a the allocated region in which to render param direction the direction from the current position that can be thought of as the arrow keys typically found on a keyboard. This will be one of the following values: SwingConstants.WEST SwingConstants.EAST SwingConstants.NORTH SwingConstants.SOUTH return the location within the model that best represents the next location visual position exception BadLocationException exception IllegalArgumentException if direction doesn't have one of the legal values above biasRet[0] = Position.Bias.Forward; switch (direction) { case NORTH: case SOUTH: { if (pos == -1) { pos = (direction == NORTH) ? Math.max(0, getEndOffset() - 1) : getStartOffset(); break; } JTextComponent target = (JTextComponent) getContainer(); Caret c = (target != null) ? target.getCaret() : null; // YECK! Ideally, the x location from the magic caret position // would be passed in. Point mcp; if (c != null) { mcp = c.getMagicCaretPosition(); } else { mcp = null; } int x; if (mcp == null) { Rectangle loc = target.modelToView(pos); x = (loc == null) ? 0 : loc.x; } else { x = mcp.x; } if (direction == NORTH) { pos = Utilities.getPositionAbove(target, pos, x); } else { pos = Utilities.getPositionBelow(target, pos, x); } } break; case WEST: if(pos == -1) { pos = Math.max(0, getEndOffset() - 1); } else { pos = Math.max(0, pos - 1); } break; case EAST: if(pos == -1) { pos = getStartOffset(); } else { pos = Math.min(pos + 1, getDocument().getLength()); } break; default: throw new IllegalArgumentException("Bad direction: " + direction); } return pos;
public javax.swing.text.View	getParent() Returns the parent of the view. return the parent, or null if none exists return parent;
public abstract float	getPreferredSpan(int axis) Determines the preferred span for this view along an axis. param axis may be either View.X_AXIS or View.Y_AXIS return 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 see View#getPreferredSpan
public int	getResizeWeight(int axis) Determines the resizability of the view along the given axis. A value of 0 or less is not resizable. param axis may be either View.X_AXIS or View.Y_AXIS return the weight return 0;
public int	getStartOffset() Fetches the portion of the model for which this view is responsible. return the starting offset into the model >= 0 see View#getStartOffset return elem.getStartOffset();
public java.lang.String	getToolTipText(float x, float y, java.awt.Shape allocation) Returns the tooltip text at the specified location. The default implementation returns the value from the child View identified by the passed in location. since 1.4 see JTextComponent#getToolTipText int viewIndex = getViewIndex(x, y, allocation); if (viewIndex >= 0) { allocation = getChildAllocation(viewIndex, allocation); Rectangle rect = (allocation instanceof Rectangle) ? (Rectangle)allocation : allocation.getBounds(); if (rect.contains(x, y)) { return getView(viewIndex).getToolTipText(x, y, allocation); } } return null;
public javax.swing.text.View	getView(int n) Gets the nth child view. Since there are no children by default, this returns null. param n the number of the view to get, >= 0 && < getViewCount() return the view return null;
public int	getViewCount() Returns the number of views in this view. Since the default is to not be a composite view this returns 0. return the number of views >= 0 see View#getViewCount return 0;
public javax.swing.text.ViewFactory	getViewFactory() Fetches the ViewFactory implementation that is feeding the view hierarchy. Normally the views are given this as an argument to updates from the model when they are most likely to need the factory, but this method serves to provide it at other times. return the factory, null if none View v = getParent(); return (v != null) ? v.getViewFactory() : null;
public int	getViewIndex(int pos, javax.swing.text.Position$Bias b) Returns the child view index representing the given position in the model. By default a view has no children so this is implemented to return -1 to indicate there is no valid child index for any position. param pos the position >= 0 return index of the view representing the given position, or -1 if no view represents that position since 1.3 return -1;
public int	getViewIndex(float x, float y, java.awt.Shape allocation) Returns the child view index representing the given position in the view. This iterates over all the children returning the first with a bounds that contains x, y. param x the x coordinate param y the y coordinate param allocation current allocation of the View. return index of the view representing the given location, or -1 if no view represents that position since 1.4 for (int counter = getViewCount() - 1; counter >= 0; counter--) { Shape childAllocation = getChildAllocation(counter, allocation); if (childAllocation != null) { Rectangle rect = (childAllocation instanceof Rectangle) ? (Rectangle)childAllocation : childAllocation.getBounds(); if (rect.contains(x, y)) { return counter; } } } return -1;
public void	insert(int offs, javax.swing.text.View v) Inserts a single child view. This is a convenience call to replace. param offs the offset of the view to insert before >= 0 param v the view see #replace since 1.3 View[] one = new View[1]; one[0] = v; replace(offs, 0, one);
public void	insertUpdate(javax.swing.event.DocumentEvent e, java.awt.Shape a, javax.swing.text.ViewFactory f) Gives notification that something was inserted into the document in a location that this view is responsible for. To reduce the burden to subclasses, this functionality is spread out into the following calls that subclasses can reimplement: updateChildren is called if there were any changes to the element this view is responsible for. If this view has child views that are represent the child elements, then this method should do whatever is necessary to make sure the child views correctly represent the model. forwardUpdate is called to forward the DocumentEvent to the appropriate child views. updateLayout is called to give the view a chance to either repair its layout, to reschedule layout, or do nothing. param e the change information from the associated document param a the current allocation of the view param f the factory to use to rebuild if the view has children see View#insertUpdate if (getViewCount() > 0) { Element elem = getElement(); DocumentEvent.ElementChange ec = e.getChange(elem); if (ec != null) { if (! updateChildren(ec, e, f)) { // don't consider the element changes they // are for a view further down. ec = null; } } forwardUpdate(ec, e, a, f); updateLayout(ec, e, a); }
public boolean	isVisible() Returns a boolean that indicates whether the view is visible or not. By default all views are visible. return always returns true return true;
public abstract java.awt.Shape	modelToView(int pos, java.awt.Shape a, javax.swing.text.Position$Bias b) Provides a mapping, for a given character, from the document model coordinate space to the view coordinate space. param pos the position of the desired character (>=0) param a the area of the view, which encompasses the requested character param b the bias toward the previous character or the next character represented by the offset, in case the position is a boundary of two views; b will have one of these values: Position.Bias.Forward Position.Bias.Backward return the bounding box, in view coordinate space, of the character at the specified position exception BadLocationException if the specified position does not represent a valid location in the associated document exception IllegalArgumentException if b is not one of the legal Position.Bias values listed above see View#viewToModel
public java.awt.Shape	modelToView(int p0, javax.swing.text.Position$Bias b0, int p1, javax.swing.text.Position$Bias b1, java.awt.Shape a) Provides a mapping, for a given region, from the document model coordinate space to the view coordinate space. The specified region is created as a union of the first and last character positions. param p0 the position of the first character (>=0) param b0 the bias of the first character position, toward the previous character or the next character represented by the offset, in case the position is a boundary of two views; b0 will have one of these values: Position.Bias.Forward Position.Bias.Backward param p1 the position of the last character (>=0) param b1 the bias for the second character position, defined one of the legal values shown above param a the area of the view, which encompasses the requested region return the bounding box which is a union of the region specified by the first and last character positions exception BadLocationException if the given position does not represent a valid location in the associated document exception IllegalArgumentException if b0 or b1 are not one of the legal Position.Bias values listed above see View#viewToModel Shape s0 = modelToView(p0, a, b0); Shape s1; if (p1 == getEndOffset()) { try { s1 = modelToView(p1, a, b1); } catch (BadLocationException ble) { s1 = null; } if (s1 == null) { // Assume extends left to right. Rectangle alloc = (a instanceof Rectangle) ? (Rectangle)a : a.getBounds(); s1 = new Rectangle(alloc.x + alloc.width - 1, alloc.y, 1, alloc.height); } } else { s1 = modelToView(p1, a, b1); } Rectangle r0 = s0.getBounds(); Rectangle r1 = (s1 instanceof Rectangle) ? (Rectangle) s1 : s1.getBounds(); if (r0.y != r1.y) { // If it spans lines, force it to be the width of the view. Rectangle alloc = (a instanceof Rectangle) ? (Rectangle)a : a.getBounds(); r0.x = alloc.x; r0.width = alloc.width; } r0.add(r1); return r0;
public java.awt.Shape	modelToView(int pos, java.awt.Shape a) Provides a mapping from the document model coordinate space to the coordinate space of the view mapped to it. This is implemented to default the bias to Position.Bias.Forward which was previously implied. param pos the position to convert >= 0 param a the allocated region in which to render return the bounding box of the given position is returned exception BadLocationException if the given position does not represent a valid location in the associated document see View#modelToView deprecated return modelToView(pos, a, Position.Bias.Forward);
public abstract void	paint(java.awt.Graphics g, java.awt.Shape allocation) 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. param g the rendering surface to use param allocation the allocated region to render into
public void	preferenceChanged(javax.swing.text.View child, boolean width, boolean height) Child views can call this on the parent to indicate that the preference has changed and should be reconsidered for layout. By default this just propagates upward to the next parent. The root view will call revalidate on the associated text component. param child the child view param width true if the width preference has changed param height true if the height preference has changed see javax.swing.JComponent#revalidate View parent = getParent(); if (parent != null) { parent.preferenceChanged(this, width, height); }
public void	remove(int i) Removes one of the children at the given position. This is a convenience call to replace. since 1.3 replace(i, 1, null);
public void	removeAll() Removes all of the children. This is a convenience call to replace. since 1.3 replace(0, getViewCount(), null);
public void	removeUpdate(javax.swing.event.DocumentEvent e, java.awt.Shape a, javax.swing.text.ViewFactory f) Gives notification that something was removed from the document in a location that this view is responsible for. To reduce the burden to subclasses, this functionality is spread out into the following calls that subclasses can reimplement: updateChildren is called if there were any changes to the element this view is responsible for. If this view has child views that are represent the child elements, then this method should do whatever is necessary to make sure the child views correctly represent the model. forwardUpdate is called to forward the DocumentEvent to the appropriate child views. updateLayout is called to give the view a chance to either repair its layout, to reschedule layout, or do nothing. param e the change information from the associated document param a the current allocation of the view param f the factory to use to rebuild if the view has children see View#removeUpdate if (getViewCount() > 0) { Element elem = getElement(); DocumentEvent.ElementChange ec = e.getChange(elem); if (ec != null) { if (! updateChildren(ec, e, f)) { // don't consider the element changes they // are for a view further down. ec = null; } } forwardUpdate(ec, e, a, f); updateLayout(ec, e, a); }
public void	replace(int offset, int length, javax.swing.text.View[] views) Replaces child views. If there are no views to remove this acts as an insert. If there are no views to add this acts as a remove. Views being removed will have the parent set to null, and the internal reference to them removed so that they can be garbage collected. This is implemented to do nothing, because by default a view has no children. param offset the starting index into the child views to insert the new views. This should be a value >= 0 and <= getViewCount param length the number of existing child views to remove This should be a value >= 0 and <= (getViewCount() - offset). param views the child views to add. This value can be null to indicate no children are being added (useful to remove). since 1.3
public void	setParent(javax.swing.text.View parent) Establishes the parent view for this view. This is guaranteed to be called before any other methods if the parent view is functioning properly. This is also the last method called, since it is called to indicate the view has been removed from the hierarchy as well. When this method is called to set the parent to null, this method does the same for each of its children, propogating the notification that they have been disconnected from the view tree. If this is reimplemented, super.setParent() should be called. param parent the new parent, or null if the view is being removed from a parent // if the parent is null then propogate down the view tree if (parent == null) { for (int i = 0; i < getViewCount(); i++) { if (getView(i).getParent() == this) { // in FlowView.java view might be referenced // from two super-views as a child. see logicalView getView(i).setParent(null); } } } this.parent = parent;
public void	setSize(float width, float height) Sets the size of the view. This should cause layout of the view along the given axis, if it has any layout duties. param width the width >= 0 param height the height >= 0
protected boolean	updateChildren(javax.swing.event.DocumentEvent$ElementChange ec, javax.swing.event.DocumentEvent e, javax.swing.text.ViewFactory f) Updates the child views in response to receiving notification that the model changed, and there is change record for the element this view is responsible for. This is implemented to assume the child views are directly responsible for the child elements of the element this view represents. The ViewFactory is used to create child views for each element specified as added in the ElementChange, starting at the index specified in the given ElementChange. The number of child views representing the removed elements specified are removed. param ec the change information for the element this view is responsible for. This should not be null if this method gets called param e the change information from the associated document param f the factory to use to build child views return whether or not the child views represent the child elements of the element this view is responsible for. Some views create children that represent a portion of the element they are responsible for, and should return false. This information is used to determine if views in the range of the added elements should be forwarded to or not see #insertUpdate see #removeUpdate see #changedUpdate since 1.3 Element[] removedElems = ec.getChildrenRemoved(); Element[] addedElems = ec.getChildrenAdded(); View[] added = null; if (addedElems != null) { added = new View[addedElems.length]; for (int i = 0; i < addedElems.length; i++) { added[i] = f.create(addedElems[i]); } } int nremoved = 0; int index = ec.getIndex(); if (removedElems != null) { nremoved = removedElems.length; } replace(index, nremoved, added); return true;
protected void	updateLayout(javax.swing.event.DocumentEvent$ElementChange ec, javax.swing.event.DocumentEvent e, java.awt.Shape a) Updates the layout in response to receiving notification of change from the model. This is implemented to call preferenceChanged to reschedule a new layout if the ElementChange record is not null. param ec changes to the element this view is responsible for (may be null if there were no changes) param e the change information from the associated document param a the current allocation of the view see #insertUpdate see #removeUpdate see #changedUpdate since 1.3 if ((ec != null) && (a != null)) { // should damage more intelligently preferenceChanged(null, true, true); Container host = getContainer(); if (host != null) { host.repaint(); } }
public abstract int	viewToModel(float x, float y, java.awt.Shape a, javax.swing.text.Position$Bias[] biasReturn) Provides a mapping from the view coordinate space to the logical coordinate space of the model. The biasReturn argument will be filled in to indicate that the point given is closer to the next character in the model or the previous character in the model. param x the X coordinate >= 0 param y the Y coordinate >= 0 param a the allocated region in which to render return the location within the model that best represents the given point in the view >= 0. The biasReturn argument will be filled in to indicate that the point given is closer to the next character in the model or the previous character in the model.
public int	viewToModel(float x, float y, java.awt.Shape a) Provides a mapping from the view coordinate space to the logical coordinate space of the model. param x the X coordinate >= 0 param y the Y coordinate >= 0 param a the allocated region in which to render return the location within the model that best represents the given point in the view >= 0 see View#viewToModel deprecated sharedBiasReturn[0] = Position.Bias.Forward; return viewToModel(x, y, a, sharedBiasReturn);