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/* * @(#)TextUI.java 1.34 06/02/14 * * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. */ package javax.swing.plaf; import javax.swing.Action; import javax.swing.BoundedRangeModel; import java.awt.Point; import java.awt.Rectangle; import java.awt.Insets; import javax.swing.text.*; /** * Text editor user interface * * @author Timothy Prinzing * @version 1.34 02/14/06 */ public abstract class TextUI extends ComponentUI { /** * Converts the given location in the model to a place in * the view coordinate system. * * @param pos the local location in the model to translate >= 0 * @return the coordinates as a rectangle * @exception BadLocationException if the given position does not * represent a valid location in the associated document */ public abstract Rectangle modelToView(JTextComponent t, int pos) throws BadLocationException; /** * Converts the given location in the model to a place in * the view coordinate system. * * @param pos the local location in the model to translate >= 0 * @return the coordinates as a rectangle * @exception BadLocationException if the given position does not * represent a valid location in the associated document */ public abstract Rectangle modelToView(JTextComponent t, int pos, Position.Bias bias) throws BadLocationException; /** * Converts the given place in the view coordinate system * to the nearest representative location in the model. * * @param pt the location in the view to translate. This * should be in the same coordinate system as the mouse * events. * @return the offset from the start of the document >= 0 */ public abstract int viewToModel(JTextComponent t, Point pt); /** * Provides a mapping from the view coordinate space to the logical * coordinate space of the model. * * @param pt the location in the view to translate. * This should be in the same coordinate system * as the mouse events. * @param biasReturn * filled in by this method to indicate whether * the point given is closer to the previous or the next * character in the model * * @return the location within the model that best represents the * given point in the view >= 0 */ public abstract int viewToModel(JTextComponent t, Point pt, Position.Bias[] biasReturn); /** * Provides a way to determine the next visually represented model * location that 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 t the text component for which this UI is installed * @param pos the position to convert >= 0 * @param b the bias for the position * @param direction the direction from the current position that can * be thought of as the arrow keys typically found on a keyboard. * This may be SwingConstants.WEST, SwingConstants.EAST, * SwingConstants.NORTH, or SwingConstants.SOUTH * @param biasRet an array to contain the bias for the returned position * @return the location within the model that best represents the next * location visual position * @exception BadLocationException * @exception IllegalArgumentException for an invalid direction */ public abstract int getNextVisualPositionFrom(JTextComponent t, int pos, Position.Bias b, int direction, Position.Bias[] biasRet) throws BadLocationException; /** * Causes the portion of the view responsible for the * given part of the model to be repainted. * * @param p0 the beginning of the range >= 0 * @param p1 the end of the range >= p0 */ public abstract void damageRange(JTextComponent t, int p0, int p1); /** * Causes the portion of the view responsible for the * given part of the model to be repainted. * * @param p0 the beginning of the range >= 0 * @param p1 the end of the range >= p0 */ public abstract void damageRange(JTextComponent t, int p0, int p1, Position.Bias firstBias, Position.Bias secondBias); /** * Fetches the binding of services that set a policy * for the type of document being edited. This contains * things like the commands available, stream readers and * writers, etc. * * @return the editor kit binding */ public abstract EditorKit getEditorKit(JTextComponent t); /** * Fetches a View with the allocation of the associated * text component (i.e. the root of the hierarchy) that * can be traversed to determine how the model is being * represented spatially. * * @return the view */ public abstract View getRootView(JTextComponent t); /** * Returns the string to be used as the tooltip at the passed in location. * * @see javax.swing.text.JTextComponent#getToolTipText * @since 1.4 */ public String getToolTipText(JTextComponent t, Point pt) { return null; } }