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/*
* ArrowIcon.java
*
* Created on 22 July 2002, 21:15
*/
package org.tigris.swidgets;
import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.io.Serializable;
import javax.swing.ButtonModel;
import javax.swing.Icon;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
/**
* A metal look and feel arrow icon that can be created to point to a
* compass point.
*
* @author administrator
*/
public class ArrowIcon implements Icon, Serializable, SwingConstants {
private static final long serialVersionUID = -5251649967037193581L;
private static final int SIZE = 10;
private static final int ONE_TOUCH_SIZE = 6;
// Sprite buffer for the arrow image of the left button
private int[][] buffer;
private int[][] northWestBuffer = {
{0, 0, 0, 2, 2, 0, 0, 0, 0},
{0, 0, 2, 1, 1, 1, 0, 0, 0},
{0, 2, 1, 1, 1, 1, 1, 0, 0},
{2, 1, 1, 1, 1, 1, 1, 1, 0},
{0, 3, 3, 3, 3, 3, 3, 3, 3}
};
private int[][] southEastBuffer = {
{2, 2, 2, 2, 2, 2, 2, 2, 0},
{0, 1, 1, 1, 1, 1, 1, 3, 3},
{0, 0, 1, 1, 1, 1, 3, 3, 0},
{0, 0, 0, 1, 1, 3, 3, 0, 0},
{0, 0, 0, 0, 3, 3, 0, 0, 0}
};
private int direction;
private int width = SIZE;
private int height = SIZE;
/** Construct an ArrowIcon pointing in the given direction
*
* @param direction the direction the arrow will point, this being
* one of the constants NORTH, SOUTH, EAST, WEST
*/
public ArrowIcon(int dir) {
this.direction = dir;
}
/** Paints the icon. The top-left corner of the icon is drawn at
* the point (x, y) in the coordinate space of the graphics
* context g. If this icon has no image observer, this method uses
* the c component as the observer.
*
* @param c the component to be used as the observer if this icon
* has no image observer
* @param g the graphics context
* @param x the X coordinate of the icon's top-left corner
* @param y the Y coordinate of the icon's top-left corner
*/
public void paintIcon(Component c, Graphics g, int x, int y) {
int blockSize = Math.min(SIZE, ONE_TOUCH_SIZE);
// Initialize the color array
Color[] colors = {
c.getBackground(),
UIManager.getColor("controlDkShadow"),
UIManager.getColor("infoText"),
UIManager.getColor("controlHighlight")};
// Fill the background first ...
g.setColor(c.getBackground());
g.fillRect(0, 0, c.getWidth(), c.getHeight());
// ... then draw the arrow.
if (c instanceof ArrowButton) {
ArrowButton button = (ArrowButton) c;
ButtonModel model = button.getModel();
if (model.isPressed()) {
// Adjust color mapping for pressed button state
colors[1] = colors[2];
}
}
if (direction == NORTH || direction == SOUTH) {
if (direction == NORTH) buffer = northWestBuffer;
else buffer = southEastBuffer;
for (int i = 1; i <= buffer[0].length; i++) {
for (int j = 1; j < blockSize; j++) {
if (buffer[j - 1][i - 1] != 0) {
g.setColor(colors[buffer[j - 1][i - 1]]);
g.drawLine(i, j, i, j);
}
}
}
}
else {
if (direction == WEST) buffer = northWestBuffer;
else buffer = southEastBuffer;
for (int i = 1; i <= buffer[0].length; i++) {
for (int j = 1; j < blockSize; j++) {
if (buffer[j - 1][i - 1] != 0) {
g.setColor(colors[buffer[j - 1][i - 1]]);
g.drawLine(j, i, j, i);
}
}
}
}
}
/**
* Gets the height of the icon.
* @return the height of the icon
*/
public int getIconWidth() {
return SIZE;
}
/**
* Gets the height of the icon.
* @return the height of the icon
*/
public int getIconHeight() {
return SIZE;
}
/**
* @param h the height for the icon
*/
public void setIconHeight(int h) {
height = h;
}
/**
* @param w the width of the icon
*/
public void setIconWidth(int w) {
width = w;
}
}
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