1 /*
2 * Copyright (c) 1998, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package javax.swing.plaf.metal;
27
28 import javax.swing.*;
29 import javax.swing.plaf.*;
30 import javax.swing.plaf.basic.*;
31 import java.awt.*;
32
33 /**
34 * The Metal implementation of ProgressBarUI.
35 * <p>
36 * <strong>Warning:</strong>
37 * Serialized objects of this class will not be compatible with
38 * future Swing releases. The current serialization support is
39 * appropriate for short term storage or RMI between applications running
40 * the same version of Swing. As of 1.4, support for long term storage
41 * of all JavaBeans
42 * has been added to the <code>java.beans</code> package.
43 * Please see {@link java.beans.XMLEncoder}.
44 *
45 * @author Michael C. Albers
46 */
47 @SuppressWarnings("serial") // Same-version serialization only
48 public class MetalProgressBarUI extends BasicProgressBarUI {
49
50 private Rectangle innards;
51 private Rectangle box;
52
53 /**
54 * Constructs an instance of {@code MetalProgressBarUI}.
55 *
56 * @param c a component
57 * @return an instance of {@code MetalProgressBarUI}
58 */
59 public static ComponentUI createUI(JComponent c) {
60 return new MetalProgressBarUI();
61 }
62
63 /**
64 * Draws a bit of special highlighting on the progress bar.
65 * The core painting is deferred to the BasicProgressBar's
66 * <code>paintDeterminate</code> method.
67 * @since 1.4
68 */
69 public void paintDeterminate(Graphics g, JComponent c) {
70 super.paintDeterminate(g,c);
71
72 if (!(g instanceof Graphics2D)) {
73 return;
74 }
75
76 if (progressBar.isBorderPainted()) {
77 Insets b = progressBar.getInsets(); // area for border
78 int barRectWidth = progressBar.getWidth() - (b.left + b.right);
79 int barRectHeight = progressBar.getHeight() - (b.top + b.bottom);
80 int amountFull = getAmountFull(b, barRectWidth, barRectHeight);
81 boolean isLeftToRight = MetalUtils.isLeftToRight(c);
82 int startX, startY, endX, endY;
83
84 // The progress bar border is painted according to a light source.
85 // This light source is stationary and does not change when the
86 // component orientation changes.
87 startX = b.left;
88 startY = b.top;
89 endX = b.left + barRectWidth - 1;
90 endY = b.top + barRectHeight - 1;
91
92 Graphics2D g2 = (Graphics2D)g;
93 g2.setStroke(new BasicStroke(1.f));
94
95 if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
96 // Draw light line lengthwise across the progress bar.
97 g2.setColor(MetalLookAndFeel.getControlShadow());
98 g2.drawLine(startX, startY, endX, startY);
99
100 if (amountFull > 0) {
101 // Draw darker lengthwise line over filled area.
102 g2.setColor(MetalLookAndFeel.getPrimaryControlDarkShadow());
103
104 if (isLeftToRight) {
105 g2.drawLine(startX, startY,
106 startX + amountFull - 1, startY);
107 } else {
108 g2.drawLine(endX, startY,
109 endX - amountFull + 1, startY);
110 if (progressBar.getPercentComplete() != 1.f) {
111 g2.setColor(MetalLookAndFeel.getControlShadow());
112 }
113 }
114 }
115 // Draw a line across the width. The color is determined by
116 // the code above.
117 g2.drawLine(startX, startY, startX, endY);
118
119 } else { // VERTICAL
120 // Draw light line lengthwise across the progress bar.
121 g2.setColor(MetalLookAndFeel.getControlShadow());
122 g2.drawLine(startX, startY, startX, endY);
123
124 if (amountFull > 0) {
125 // Draw darker lengthwise line over filled area.
126 g2.setColor(MetalLookAndFeel.getPrimaryControlDarkShadow());
127 g2.drawLine(startX, endY,
128 startX, endY - amountFull + 1);
129 }
130 // Draw a line across the width. The color is determined by
131 // the code above.
132 g2.setColor(MetalLookAndFeel.getControlShadow());
133
134 if (progressBar.getPercentComplete() == 1.f) {
135 g2.setColor(MetalLookAndFeel.getPrimaryControlDarkShadow());
136 }
137 g2.drawLine(startX, startY, endX, startY);
138 }
139 }
140 }
141
142 /**
143 * Draws a bit of special highlighting on the progress bar
144 * and bouncing box.
145 * The core painting is deferred to the BasicProgressBar's
146 * <code>paintIndeterminate</code> method.
147 * @since 1.4
148 */
149 public void paintIndeterminate(Graphics g, JComponent c) {
150 super.paintIndeterminate(g, c);
151
152 if (!progressBar.isBorderPainted() || (!(g instanceof Graphics2D))) {
153 return;
154 }
155
156 Insets b = progressBar.getInsets(); // area for border
157 int barRectWidth = progressBar.getWidth() - (b.left + b.right);
158 int barRectHeight = progressBar.getHeight() - (b.top + b.bottom);
159 int amountFull = getAmountFull(b, barRectWidth, barRectHeight);
160 boolean isLeftToRight = MetalUtils.isLeftToRight(c);
161 int startX, startY, endX, endY;
162 Rectangle box = null;
163 box = getBox(box);
164
165 // The progress bar border is painted according to a light source.
166 // This light source is stationary and does not change when the
167 // component orientation changes.
168 startX = b.left;
169 startY = b.top;
170 endX = b.left + barRectWidth - 1;
171 endY = b.top + barRectHeight - 1;
172
173 Graphics2D g2 = (Graphics2D)g;
174 g2.setStroke(new BasicStroke(1.f));
175
176 if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
177 // Draw light line lengthwise across the progress bar.
178 g2.setColor(MetalLookAndFeel.getControlShadow());
179 g2.drawLine(startX, startY, endX, startY);
180 g2.drawLine(startX, startY, startX, endY);
181
182 // Draw darker lengthwise line over filled area.
183 g2.setColor(MetalLookAndFeel.getPrimaryControlDarkShadow());
184 g2.drawLine(box.x, startY, box.x + box.width - 1, startY);
185
186 } else { // VERTICAL
187 // Draw light line lengthwise across the progress bar.
188 g2.setColor(MetalLookAndFeel.getControlShadow());
189 g2.drawLine(startX, startY, startX, endY);
190 g2.drawLine(startX, startY, endX, startY);
191
192 // Draw darker lengthwise line over filled area.
193 g2.setColor(MetalLookAndFeel.getPrimaryControlDarkShadow());
194 g2.drawLine(startX, box.y, startX, box.y + box.height - 1);
195 }
196 }
197 }