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/*
* 03/16/2013
*
* TokenPainter - Renders tokens in an instance of RSyntaxTextArea.
*
* This library is distributed under a modified BSD license. See the included
* LICENSE file for details.
*/
package org.fife.ui.rsyntaxtextarea;
import java.awt.Graphics2D;
import javax.swing.text.TabExpander;
/**
* Renders tokens in an instance of {@link RSyntaxTextArea}. One instance
* may render tokens "regularly," another may render visible whitespace, for
* example.
*
* @author Robert Futrell
* @version 1.0
*/
interface TokenPainter {
/**
* Paints this token.
*
* @param token The token to render.
* @param g The graphics context in which to paint.
* @param x The x-coordinate at which to paint.
* @param y The y-coordinate at which to paint.
* @param host The text area this token is in.
* @param e How to expand tabs.
* @return The x-coordinate representing the end of the painted text.
*/
float paint(Token token, Graphics2D g, float x, float y,
RSyntaxTextArea host, TabExpander e);
/**
* Paints this token.
*
* @param token The token to render.
* @param g The graphics context in which to paint.
* @param x The x-coordinate at which to paint.
* @param y The y-coordinate at which to paint.
* @param host The text area this token is in.
* @param e How to expand tabs.
* @param clipStart The left boundary of the clip rectangle in which we're
* painting. This optimizes painting by allowing us to not paint
* paint when this token is "to the left" of the clip rectangle.
* @return The x-coordinate representing the end of the painted text.
*/
float paint(Token token, Graphics2D g, float x, float y,
RSyntaxTextArea host, TabExpander e, float clipStart);
/**
* Paints this token.
*
* @param token The token to render.
* @param g The graphics context in which to paint.
* @param x The x-coordinate at which to paint.
* @param y The y-coordinate at which to paint.
* @param host The text area this token is in.
* @param e How to expand tabs.
* @param clipStart The left boundary of the clip rectangle in which we're
* painting. This optimizes painting by allowing us to not paint
* paint when this token is "to the left" of the clip rectangle.
* @param paintBG Whether to paint the background.
* @return The x-coordinate representing the end of the painted text.
*/
float paint(Token token, Graphics2D g, float x, float y,
RSyntaxTextArea host, TabExpander e, float clipStart,
boolean paintBG);
/**
* Paints this token as it should appear in a selected region of text
* (assuming painting with a selection-foreground color is enabled in the
* parent RSyntaxTextArea).
*
* @param token The token to render.
* @param g The graphics context in which to paint.
* @param x The x-coordinate at which to paint.
* @param y The y-coordinate at which to paint.
* @param host The text area this token is in.
* @param e How to expand tabs.
* @param useSTC Whether to use the text area's "selected text color."
* @return The x-coordinate representing the end of the painted text.
*/
float paintSelected(Token token, Graphics2D g, float x, float y,
RSyntaxTextArea host, TabExpander e, boolean useSTC);
/**
* Paints this token as it should appear in a selected region of text
* (assuming painting with a selection-foreground color is enabled in the
* parent RSyntaxTextArea).
*
* @param token The token to render.
* @param g The graphics context in which to paint.
* @param x The x-coordinate at which to paint.
* @param y The y-coordinate at which to paint.
* @param host The text area this token is in.
* @param e How to expand tabs.
* @param clipStart The left boundary of the clip rectangle in which we're
* painting. This optimizes painting by allowing us to not paint
* paint when this token is "to the left" of the clip rectangle.
* @param useSTC Whether to use the text area's "selected text color."
* @return The x-coordinate representing the end of the painted text.
*/
float paintSelected(Token token, Graphics2D g, float x, float y,
RSyntaxTextArea host, TabExpander e, float clipStart,
boolean useSTC);
}
