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BasicArrowButton.java
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1998-02-26
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/*
* @(#)BasicArrowButton.java 1.11 98/02/02
*
* Copyright (c) 1997 Sun Microsystems, Inc. All Rights Reserved.
*
* This software is the confidential and proprietary information of Sun
* Microsystems, Inc. ("Confidential Information"). You shall not
* disclose such Confidential Information and shall use it only in
* accordance with the terms of the license agreement you entered into
* with Sun.
*
* SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
* SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
* IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES
* SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING
* THIS SOFTWARE OR ITS DERIVATIVES.
*
*/
package com.sun.java.swing.plaf.basic;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Color;
import com.sun.java.swing.*;
/**
* JButton object that draws a scaled Arrow in one of the cardinal directions.
* <p>
* Warning: serialized objects of this class will not be compatible with
* future swing releases. The current serialization support is appropriate
* for short term storage or RMI between Swing1.0 applications. It will
* not be possible to load serialized Swing1.0 objects with future releases
* of Swing. The JDK1.2 release of Swing will be the compatibility
* baseline for the serialized form of Swing objects.
*
* @version 1.11 02/02/98
* @author David Kloba
*/
public class BasicArrowButton extends JButton implements SwingConstants
{
protected int direction;
public BasicArrowButton(int direction) {
setDirection(direction);
setBackground(UIManager.getColor("control"));
}
public int getDirection() { return direction; }
public void setDirection(int dir) { direction = dir; }
public void paint(Graphics g) {
Color origColor;
boolean isPressed, isEnabled;
int w, h, size;
w = getSize().width;
h = getSize().height;
origColor = g.getColor();
isPressed = getModel().isPressed();
isEnabled = isEnabled();
g.setColor(getBackground());
g.fillRect(1, 1, w-2, h-2);
/// Draw the proper Border
if (isPressed) {
g.setColor(UIManager.getColor("controlShadow"));
g.drawRect(0, 0, w-1, h-1);
} else {
// Using the background color set above
g.drawLine(0, 0, 0, h-1);
g.drawLine(1, 0, w-2, 0);
g.setColor(UIManager.getColor("controlHighlight")); // inner 3D border
g.drawLine(1, 1, 1, h-3);
g.drawLine(2, 1, w-3, 1);
g.setColor(UIManager.getColor("controlShadow")); // inner 3D border
g.drawLine(1, h-2, w-2, h-2);
g.drawLine(w-2, 1, w-2, h-3);
g.setColor(UIManager.getColor("controlDkShadow")); // black drop shadow __|
g.drawLine(0, h-1, w-1, h-1);
g.drawLine(w-1, h-1, w-1, 0);
}
// If there's no room to draw arrow, bail
if(h < 5 || w < 5) {
g.setColor(origColor);
return;
}
if (isPressed) {
g.translate(1, 1);
}
// Draw the arrow
size = Math.min((h - 4) / 3, (w - 4) / 3);
size = Math.max(size, 2);
paintTriangle(g, (w - size) / 2, (h - size) / 2,
size, direction, isEnabled);
// Reset the Graphics back to it's original settings
if (isPressed) {
g.translate(-1, -1);
}
g.setColor(origColor);
}
public Dimension getPreferredSize() {
return new Dimension(16, 16);
}
public Dimension getMinimumSize() {
return new Dimension(5, 5);
}
public Dimension getMaximumSize() {
return new Dimension(Integer.MAX_VALUE, Integer.MAX_VALUE);
}
public boolean isFocusTraversable() {
return false;
}
public void requestFocus() {
}
public void paintTriangle(Graphics g, int x, int y, int size,
int direction, boolean isEnabled) {
Color oldColor = g.getColor();
int mid, i, j;
j = 0;
size = Math.max(size, 2);
mid = size / 2;
g.translate(x, y);
if(isEnabled)
g.setColor(UIManager.getColor("controlDkShadow"));
else
g.setColor(UIManager.getColor("controlShadow"));
switch(direction) {
case NORTH:
for(i = 0; i < size; i++) {
g.drawLine(mid-i, i, mid+i, i);
}
if(!isEnabled) {
g.setColor(UIManager.getColor("controlHighlight"));
g.drawLine(mid-i+2, i, mid+i, i);
}
break;
case SOUTH:
if(!isEnabled) {
g.translate(1, 1);
g.setColor(UIManager.getColor("controlHighlight"));
for(i = size-1; i >= 0; i--) {
g.drawLine(mid-i, j, mid+i, j);
j++;
}
g.translate(-1, -1);
g.setColor(UIManager.getColor("controlShadow"));
}
j = 0;
for(i = size-1; i >= 0; i--) {
g.drawLine(mid-i, j, mid+i, j);
j++;
}
break;
case WEST:
for(i = 0; i < size; i++) {
g.drawLine(i, mid-i, i, mid+i);
}
if(!isEnabled) {
g.setColor(UIManager.getColor("controlHighlight"));
g.drawLine(i, mid-i+2, i, mid+i);
}
break;
case EAST:
if(!isEnabled) {
g.translate(1, 1);
g.setColor(UIManager.getColor("controlHighlight"));
for(i = size-1; i >= 0; i--) {
g.drawLine(j, mid-i, j, mid+i);
j++;
}
g.translate(-1, -1);
g.setColor(UIManager.getColor("controlShadow"));
}
j = 0;
for(i = size-1; i >= 0; i--) {
g.drawLine(j, mid-i, j, mid+i);
j++;
}
break;
}
g.translate(-x, -y);
g.setColor(oldColor);
}
}