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1
19
20 package org.netbeans.swing.plaf.gtk;
21
22 import javax.swing.*;
23 import javax.swing.event.ChangeEvent  ;
24 import javax.swing.event.ChangeListener ;
25 import javax.swing.plaf.ButtonUI ;
26 import javax.swing.plaf.basic.BasicButtonListener ;
27 import java.awt.*;
28
29
33 class GtkToolBarButtonUI extends ButtonUI implements ChangeListener {
34 private static BasicButtonListener listener =
35 new BasicButtonListener (null);
36
37
38 public GtkToolBarButtonUI() {
39 }
40
41 public void installUI (JComponent c) {
42 AbstractButton b = (AbstractButton) c;
43 b.addMouseListener (listener);
44 b.addChangeListener(this);
45 b.setContentAreaFilled(false);
46 b.setOpaque(false);
47 b.setFocusable(false);
48 b.setBorderPainted(false);
49 b.setBorder (BorderFactory.createEmptyBorder());
50 b.putClientProperty("hideActionText", Boolean.TRUE); }
52
53 public void uninstallUI(JComponent c) {
54 c.removeMouseListener (listener);
55 }
56
57 public void stateChanged(ChangeEvent e) {
58 ((AbstractButton) e.getSource()).repaint();
59 }
60
61 private final Rectangle scratch = new Rectangle();
62 public void paint (Graphics g, JComponent c) {
63 Rectangle r = c.getBounds(scratch);
64 AbstractButton b = (AbstractButton) c;
65 r.x = 0;
66 r.y = 0;
67 Paint temp = ((Graphics2D) g).getPaint();
68 paintBackground ((Graphics2D)g, b, r);
69 paintIcon (g, b, r);
70 ((Graphics2D) g).setPaint(temp);
71 }
72
73 private void paintBackground (Graphics2D g, AbstractButton b, Rectangle r) {
74 if (!b.isEnabled()) {
75 } else if (b.getModel().isPressed()) {
76 compositeColor (g, r, Color.BLUE, 0.3f);
77 } else if (b.getModel().isSelected()) {
78 compositeColor (g, r, new Color (0, 120, 255), 0.2f);;
79 }
80 }
81
82 private void compositeColor (Graphics2D g, Rectangle r, Color c, float alpha) {
83 g.setColor (c);
84 Composite comp = g.getComposite();
85
86 g.setComposite(AlphaComposite.getInstance(
87 AlphaComposite.SRC_OVER, alpha));
88
89 g.fillRect (r.x, r.y, r.width, r.height);
90 g.setComposite(comp);
91 }
92
93 private static boolean isFirst (AbstractButton b) {
94 if (b.getParent() != null && b.getParent().getComponentCount() > 1) {
95 return b == b.getParent().getComponent(1);
98 } else {
99 return false;
100 }
101 }
102
103 private void paintIcon (Graphics g, AbstractButton b, Rectangle r) {
104 Icon ic = getIconForState (b);
105 if (ic != null) {
106 int iconX = 0;
107 int iconY = 0;
108 int iconW = ic.getIconWidth();
109 int iconH = ic.getIconHeight();
110
111 if (iconW <= r.width) {
112 iconX = (r.width / 2) - (iconW / 2);
113 }
114 if (iconH <= r.height) {
115 iconY = (r.height / 2) - (iconH / 2);
116 }
117 ic.paintIcon(b, g, iconX, iconY);
118 }
119 }
120
121 private Icon getIconForState (AbstractButton b) {
122 ButtonModel mdl = b.getModel();
123 Icon result = null;
124 if (!b.isEnabled()) {
125 result = mdl.isSelected() ? b.getDisabledSelectedIcon() : b.getDisabledIcon();
126 if (result == null && mdl.isSelected()) {
127 result = b.getDisabledIcon();
128 }
129 } else {
130 if (mdl.isArmed() && !mdl.isPressed()) {
131 result = mdl.isSelected() ? b.getRolloverSelectedIcon() : b.getRolloverIcon();
132 if (result == null & mdl.isSelected()) {
133 result = b.getRolloverIcon();
134 }
135 }
136 if (mdl.isPressed()) {
137 result = b.getPressedIcon();
138 } else if (mdl.isSelected()) {
139 result = b.getSelectedIcon();
140 }
141 }
142 if (result == null) {
143 result = b.getIcon();
144 }
145 return result;
146 }
147
148 private static final int minButtonSize = 32;
149 public Dimension getPreferredSize(JComponent c) {
150 if (c instanceof AbstractButton) {
151 Icon ic = getIconForState((AbstractButton) c);
152 Dimension result;
153 int minSize = isFirst((AbstractButton)c) ? 0 : minButtonSize;
154 if (ic != null) {
155 result = new Dimension(Math.max(minSize, ic.getIconWidth()+1),
156 Math.max(minButtonSize,ic.getIconHeight() + 1));
157 } else {
158 result = new Dimension (minButtonSize, minButtonSize);
159 }
160 result.width += 4;
161 return result;
162 } else {
163 if (c.getLayout() != null) {
164 return c.getLayout().preferredLayoutSize(c);
165 }
166 }
167 return null;
168 }
169 }
170 |
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