/[svn]/jsampler/trunk/src/org/jsampler/view/fantasia/MainPane.java
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Contents of /jsampler/trunk/src/org/jsampler/view/fantasia/MainPane.java

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Revision 1318 - (show annotations) (download)
Sat Sep 1 13:46:04 2007 UTC (16 years, 7 months ago) by iliev
File size: 6924 byte(s)
* Fantasia: Added scrollbar to the channels pane
* Implemented automatic scrolling when new channel is
  created to ensure that it is visible on the screen

1 /*
2 * JSampler - a java front-end for LinuxSampler
3 *
4 * Copyright (C) 2005-2007 Grigor Iliev <grigor@grigoriliev.com>
5 *
6 * This file is part of JSampler.
7 *
8 * JSampler is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2
10 * as published by the Free Software Foundation.
11 *
12 * JSampler is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with JSampler; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20 * MA 02111-1307 USA
21 */
22
23 package org.jsampler.view.fantasia;
24
25 import java.awt.Cursor;
26 import java.awt.Dimension;
27 import java.awt.Graphics;
28 import java.awt.GridBagConstraints;
29 import java.awt.GridBagLayout;
30 import java.awt.Insets;
31 import java.awt.Rectangle;
32
33 import java.awt.event.ActionEvent;
34 import java.awt.event.ActionListener;
35 import java.awt.event.HierarchyEvent;
36 import java.awt.event.HierarchyListener;
37 import java.awt.event.MouseAdapter;
38 import java.awt.event.MouseEvent;
39
40 import javax.swing.BorderFactory;
41 import javax.swing.Box;
42 import javax.swing.BoxLayout;
43 import javax.swing.JPanel;
44 import javax.swing.JScrollPane;
45
46 import org.jsampler.CC;
47
48 import static org.jsampler.view.fantasia.FantasiaI18n.i18n;
49 import static org.jvnet.substance.SubstanceLookAndFeel.SCROLL_PANE_BUTTONS_POLICY;
50 import static org.jvnet.substance.utils.SubstanceConstants.ScrollPaneButtonPolicyKind;
51
52
53 /**
54 *
55 * @author Grigor Iliev
56 */
57 public class MainPane extends JPanel {
58 private final ChannelsBar channelsBar = new ChannelsBar();
59 private final ChannelsPane channelsPane;
60
61 final JScrollPane scrollPane;
62
63 /** Creates a new instance of <code>MainPane</code> */
64 public MainPane() {
65 channelsPane = new ChannelsPane("", new ActionListener() {
66 public void
67 actionPerformed(ActionEvent e) { scrollToBottom(); }
68 });
69
70 GridBagLayout gridbag = new GridBagLayout();
71 GridBagConstraints c = new GridBagConstraints();
72
73 setLayout(gridbag);
74
75 JPanel p = new JPanel();
76 p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));
77 p.add(channelsBar);
78 p.add(Box.createGlue());
79
80 c.gridx = 0;
81 c.gridy = 0;
82 c.weightx = 1.0;
83 c.insets = new Insets(0, 0, 0, 0);
84 c.fill = GridBagConstraints.HORIZONTAL;
85 gridbag.setConstraints(p, c);
86 add(p);
87
88 p = createChannelsPane();
89 p.setAlignmentX(LEFT_ALIGNMENT);
90
91 scrollPane = new JScrollPane(p);
92 JScrollPane sp = scrollPane;
93 sp.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
94 //sp.putClientProperty(SCROLL_PANE_BUTTONS_POLICY, ScrollPaneButtonPolicyKind.NONE);
95 sp.setBorder(BorderFactory.createEmptyBorder());
96 sp.setOpaque(false);
97 javax.swing.JViewport wp = sp.getViewport();
98 wp.setMinimumSize(new Dimension(420, wp.getMinimumSize().height));
99 wp.setOpaque(false);
100 sp.setMaximumSize(new Dimension(sp.getMaximumSize().width, Short.MAX_VALUE));
101 sp.getVerticalScrollBar().setBorder(BorderFactory.createEmptyBorder(7, 4, 0, 1));
102 //sp.getVerticalScrollBar().setUnitIncrement(12);
103 sp.setPreferredSize(new Dimension(420, sp.getPreferredSize().height));
104
105 sp.getVerticalScrollBar().addHierarchyListener(new HierarchyListener() {
106 public void
107 hierarchyChanged(HierarchyEvent e) {
108 if((e.getChangeFlags() & e.SHOWING_CHANGED) != e.SHOWING_CHANGED) {
109 return;
110 }
111
112 onScrollBarVisibilityChanged();
113 }
114 });
115
116 c.gridx = 0;
117 c.gridy = 2;
118 c.weightx = 1.0;
119 c.weighty = 1.0;
120 c.insets = new Insets(0, 0, 0, 0);
121 c.fill = GridBagConstraints.BOTH;
122 gridbag.setConstraints(sp, c);
123 add(sp);
124
125 //setMaximumSize(new Dimension(420, Short.MAX_VALUE));
126 }
127
128 private JPanel
129 createChannelsPane() {
130 JPanel p = new JPanel();
131 p.setLayout(new BoxLayout(p, BoxLayout.Y_AXIS));
132 channelsPane.setAlignmentX(LEFT_ALIGNMENT);
133 p.add(channelsPane);
134 JPanel p2 = new NewChannelPane();
135 p2.setAlignmentX(LEFT_ALIGNMENT);
136 p.add(p2);
137 p.add(Box.createGlue());
138 p.setOpaque(false);
139 p.setBorder(BorderFactory.createEmptyBorder(7, 0, 0, 0));
140 p.setMinimumSize(new Dimension(420, p.getMinimumSize().height));
141 return p;
142 }
143
144 private void
145 onScrollBarVisibilityChanged() {
146 int h = scrollPane.getPreferredSize().height;
147 int scrollbarWidth = scrollPane.getVerticalScrollBar().getPreferredSize().width;
148
149 if(scrollPane.getVerticalScrollBar().isVisible()) {
150 scrollPane.setPreferredSize(new Dimension(420 + scrollbarWidth, h));
151 } else {
152 scrollPane.setPreferredSize(new Dimension(420, h));
153 }
154
155 revalidate();
156 }
157
158 public void
159 scrollToBottom() {
160 int h = scrollPane.getViewport().getView().getHeight();
161 scrollPane.getViewport().scrollRectToVisible(new Rectangle(0, h - 2, 1, 1));
162 }
163
164 public ChannelsPane
165 getChannelsPane() { return channelsPane; }
166
167 protected void
168 paintComponent(Graphics g) {
169 super.paintComponent(g);
170 int h = Res.gfxChannelsBg.getIconHeight();
171 if(h < 1) return;
172 int i = 0;
173 while(i < getHeight()) {
174 Res.gfxChannelsBg.paintIcon(this, g, 0, i);
175 i += h;
176 }
177 }
178
179 class NewChannelPane extends PixmapPane implements ActionListener {
180 private final PixmapButton btnNew = new PixmapButton(Res.gfxPowerOff);
181
182 NewChannelPane() {
183 super(Res.gfxCreateChannel);
184 setPixmapInsets(new Insets(3, 3, 3, 3));
185
186 setLayout(new BoxLayout(this, BoxLayout.X_AXIS));
187 add(Box.createRigidArea(new Dimension(4, 0)));
188 add(btnNew);
189 add(Box.createRigidArea(new Dimension(3, 0)));
190
191 add(createVSeparator());
192
193 add(Box.createRigidArea(new Dimension(275, 0)));
194
195 add(createVSeparator());
196
197 add(Box.createRigidArea(new Dimension(29, 0)));
198
199 add(createVSeparator());
200
201 add(Box.createRigidArea(new Dimension(40, 0)));
202
203 add(createVSeparator());
204
205 setPreferredSize(new Dimension(420, 29));
206 setMinimumSize(getPreferredSize());
207 setMaximumSize(getPreferredSize());
208
209 btnNew.setPressedIcon(Res.gfxPowerOn);
210 btnNew.addActionListener(this);
211
212 addMouseListener(new MouseAdapter() {
213 public void
214 mouseClicked(MouseEvent e) {
215 if(e.getButton() != e.BUTTON1) {
216 return;
217 }
218
219 CC.getSamplerModel().addBackendChannel();
220 }
221 });
222
223 setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
224
225 String s = i18n.getLabel("MainPane.NewChannelPane.newChannel");
226 btnNew.setToolTipText(s);
227 setToolTipText(s);
228 }
229
230 public void
231 actionPerformed(ActionEvent e) {
232 CC.getSamplerModel().addBackendChannel();
233 }
234
235 private JPanel
236 createVSeparator() {
237 PixmapPane p = new PixmapPane(Res.gfxVLine);
238 p.setOpaque(false);
239 p.setPreferredSize(new Dimension(2, 29));
240 p.setMinimumSize(p.getPreferredSize());
241 p.setMaximumSize(p.getPreferredSize());
242 return p;
243 }
244 }
245 }

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