/*
* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*
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*/
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
*/
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;
}
}