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OrganicProgressBarUI.java
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1998-06-30
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/*
* @(#)OrganicProgressBarUI.java 1.8 98/02/05
*
* 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.organic;
import com.sun.java.swing.plaf.basic.*;
import com.sun.java.swing.*;
import com.sun.java.swing.event.*;
import java.awt.*;
import com.sun.java.swing.plaf.*;
/**
* A Java L&F implementation of ProgressBarUI. This implementation
* is both the view and the controller.
* <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 1.8 02/05/98
* @author Michael C. Albers
*/
public class OrganicProgressBarUI extends BasicProgressBarUI {
int pending;
static protected final Dimension PREFERRED_INNER_HORIZONTAL
= new Dimension(144, 11);
static protected final Dimension PREFERRED_INNER_VERTICAL
= new Dimension(11, 144);
int cellLength, cellSpacing;
protected Color headColor;
public static ComponentUI createUI(JComponent c) {
return new OrganicProgressBarUI();
}
public void installUI(JComponent c) {
super.installUI(c);
headColor = UIManager.getColor("ProgressBar.head");
}
public int getCellLength() {
return 2;
}
public int getCellSpacing() {
return 1;
}
public void paint(Graphics g, JComponent c) {
Dimension totalSize = c.getSize();
Dimension innerSize;
int x, y;
int span, length, max, min, current, increment;
JProgressBar progressBar = (JProgressBar)c;
BoundedRangeModel model = progressBar.getModel();
Insets b = getBorderInsets(c);
cellLength = getCellLength();
cellSpacing = getCellSpacing();
g.setColor(c.getForeground());
if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
x = b.left;
y = b.top;
innerSize = new Dimension(totalSize.width - (b.left + b.right),
totalSize.height - (b.top + b.bottom));
span = model.getMaximum() - model.getMinimum();
increment = cellLength + cellSpacing;
length = 0;
if (span != 0) {
double bigWidth = innerSize.width;
double bigValue = model.getValue();
double fractionComplete = bigValue / span;
length = (int)(bigWidth * fractionComplete);
}
max = (x + length) - cellLength;
// Draw constant left cell
g.fillRect(x, y, cellLength, innerSize.height);
// Draw constant right cell
g.fillRect(totalSize.width-cellLength, y,
cellLength, innerSize.height);
// Draw the cells
for (current = x; current < max; current += increment) {
g.fillRect(current, y, cellLength, innerSize.height);
}
if (model.getValue() != 0) {
// Draw the head cell
g.setColor(headColor);
// Ensure that "head" is always drawn at the end
if (model.getValue() == model.getMaximum()) {
current = innerSize.width - cellLength;
}
g.fillRect(current, y, cellLength, innerSize.height);
}
} else { // Must be VERTICAL
x = b.left;
y = b.top;
innerSize = new Dimension(totalSize.width - (b.left + b.right),
totalSize.height - (b.top + b.bottom));
span = model.getMaximum() - model.getMinimum();
increment = cellLength + cellSpacing;
length = 0;
if (span != 0) {
double bigHeight = innerSize.height;
double bigValue = model.getValue();
double fractionComplete = bigValue / span;
length = (int)(bigHeight * fractionComplete);
}
min = ((innerSize.height - 1) + y) - length;
// Draw the constant top cell
g.fillRect(x, y, innerSize.width, cellLength);
// Draw the constant bottom cell
g.fillRect(x, totalSize.height-cellLength,
innerSize.width, cellLength);
for (current = (innerSize.height - 1) + (y - cellLength);
current > min; current -= increment)
{
g.fillRect(x, current, innerSize.width, cellLength);
}
if (model.getValue() != 0) {
// Draw the head cell
g.setColor(headColor);
// Ensure that "head" is always drawn at the end
if (model.getValue() == model.getMaximum()) {
current = y;
}
g.fillRect(x, current, innerSize.width, cellLength);
}
}
}
public Insets getBorderInsets(JComponent c) {
// no borders on OrganicProgressBar
return new Insets(0, 0, 0, 0);
}
}