1 /*
2 * Copyright (c) 2002, 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 package javax.swing.plaf.synth;
26
27 import java.awt.*;
28 import javax.swing.*;
29 import javax.swing.plaf.UIResource;
30
31 /**
32 * JButton object that draws a scaled Arrow in one of the cardinal directions.
33 *
34 * @author Scott Violet
35 */
36 @SuppressWarnings("serial") // Superclass is not serializable across versions
37 class SynthArrowButton extends JButton implements SwingConstants, UIResource {
38 private int direction;
39
40 public SynthArrowButton(int direction) {
41 super();
42 super.setFocusable(false);
43 setDirection(direction);
44 setDefaultCapable(false);
45 }
46
47 public String getUIClassID() {
48 return "ArrowButtonUI";
49 }
50
51 public void updateUI() {
52 setUI(new SynthArrowButtonUI());
53 }
54
55 public void setDirection(int dir) {
56 direction = dir;
57 putClientProperty("__arrow_direction__", Integer.valueOf(dir));
58 repaint();
59 }
60
61 public int getDirection() {
62 return direction;
63 }
64
65 public void setFocusable(boolean focusable) {}
66
67 private static class SynthArrowButtonUI extends SynthButtonUI {
68 protected void installDefaults(AbstractButton b) {
69 super.installDefaults(b);
70 updateStyle(b);
71 }
72
73 protected void paint(SynthContext context, Graphics g) {
74 SynthArrowButton button = (SynthArrowButton)context.
75 getComponent();
76 context.getPainter().paintArrowButtonForeground(
77 context, g, 0, 0, button.getWidth(), button.getHeight(),
78 button.getDirection());
79 }
80
81 void paintBackground(SynthContext context, Graphics g, JComponent c) {
82 context.getPainter().paintArrowButtonBackground(context, g, 0, 0,
83 c.getWidth(), c.getHeight());
84 }
85
86 public void paintBorder(SynthContext context, Graphics g, int x,
87 int y, int w, int h) {
88 context.getPainter().paintArrowButtonBorder(context, g, x, y, w,h);
89 }
90
91 public Dimension getMinimumSize() {
92 return new Dimension(5, 5);
93 }
94
95 public Dimension getMaximumSize() {
96 return new Dimension(Integer.MAX_VALUE, Integer.MAX_VALUE);
97 }
98
99 public Dimension getPreferredSize(JComponent c) {
100 SynthContext context = getContext(c);
101 Dimension dim = null;
102 if (context.getComponent().getName() == "ScrollBar.button") {
103 // ScrollBar arrow buttons can be non-square when
104 // the ScrollBar.squareButtons property is set to FALSE
105 // and the ScrollBar.buttonSize property is non-null
106 dim = (Dimension)
107 context.getStyle().get(context, "ScrollBar.buttonSize");
108 }
109 if (dim == null) {
110 // For all other cases (including Spinner, ComboBox), we will
111 // fall back on the single ArrowButton.size value to create
112 // a square return value
113 int size =
114 context.getStyle().getInt(context, "ArrowButton.size", 16);
115 dim = new Dimension(size, size);
116 }
117
118 // handle scaling for sizeVarients for special case components. The
119 // key "JComponent.sizeVariant" scales for large/small/mini
120 // components are based on Apples LAF
121 Container parent = context.getComponent().getParent();
122 if (parent instanceof JComponent && !(parent instanceof JComboBox)) {
123 Object scaleKey = ((JComponent)parent).
124 getClientProperty("JComponent.sizeVariant");
125 if (scaleKey != null){
126 if ("large".equals(scaleKey)){
127 dim = new Dimension(
128 (int)(dim.width * 1.15),
129 (int)(dim.height * 1.15));
130 } else if ("small".equals(scaleKey)){
131 dim = new Dimension(
132 (int)(dim.width * 0.857),
133 (int)(dim.height * 0.857));
134 } else if ("mini".equals(scaleKey)){
135 dim = new Dimension(
136 (int)(dim.width * 0.714),
137 (int)(dim.height * 0.714));
138 }
139 }
140 }
141
142 context.dispose();
143 return dim;
144 }
145 }
146 }