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comparison src/viewer_swing/java/com/glavsoft/viewer/swing/Surface.java @ 0:4689cc86d6cb

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create TreeViewer2 Repository
author Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
date Tue, 03 Jul 2012 13:20:49 +0900
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children 3c072f2f39bb 17b702648079
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-1:000000000000 0:4689cc86d6cb
1 // Copyright (C) 2010, 2011 GlavSoft LLC.
2 // All rights reserved.
3 //
4 //-------------------------------------------------------------------------
5 // This file is part of the TightVNC software. Please visit our Web site:
6 //
7 // http://www.tightvnc.com/
8 //
9 // This program is free software; you can redistribute it and/or modify
10 // it under the terms of the GNU General Public License as published by
11 // the Free Software Foundation; either version 2 of the License, or
12 // (at your option) any later version.
13 //
14 // This program is distributed in the hope that it will be useful,
15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 // GNU General Public License for more details.
18 //
19 // You should have received a copy of the GNU General Public License along
20 // with this program; if not, write to the Free Software Foundation, Inc.,
21 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 //-------------------------------------------------------------------------
23 //
24
25 package com.glavsoft.viewer.swing;
26
27 import com.glavsoft.core.SettingsChangedEvent;
28 import com.glavsoft.drawing.Renderer;
29 import com.glavsoft.rfb.IChangeSettingsListener;
30 import com.glavsoft.rfb.IRepaintController;
31 import com.glavsoft.rfb.encoding.PixelFormat;
32 import com.glavsoft.rfb.encoding.decoder.FramebufferUpdateRectangle;
33 import com.glavsoft.rfb.protocol.ProtocolContext;
34 import com.glavsoft.rfb.protocol.ProtocolSettings;
35 import com.glavsoft.transport.Reader;
36 import com.glavsoft.viewer.Viewer;
37
38 import javax.swing.*;
39 import java.awt.*;
40
41 @SuppressWarnings("serial")
42 public class Surface extends JPanel implements IRepaintController, IChangeSettingsListener {
43
44 private int width;
45 private int height;
46 private SoftCursorImpl cursor;
47 private RendererImpl renderer;
48 private MouseEventListener mouseEventListener;
49 private KeyEventListener keyEventListener;
50 private boolean showCursor;
51 private ModifierButtonEventListener modifierButtonListener;
52 private boolean isUserInputEnabled = false;
53 private final ProtocolContext context;
54 private double scaleFactor;
55 private final Viewer viewer;
56
57 @Override
58 public boolean isDoubleBuffered() {
59 // TODO returning false in some reason may speed ups drawing, but may
60 // not. Needed in challenging.
61 return false;
62 }
63
64 public Surface(ProtocolContext context, Viewer viewer, double scaleFactor) {
65 this.context = context;
66 this.viewer = viewer;
67 this.scaleFactor = scaleFactor;
68 init(context.getFbWidth(), context.getFbHeight());
69
70 if ( ! context.getSettings().isViewOnly()) {
71 setUserInputEnabled(true, context.getSettings().isConvertToAscii());
72 }
73 showCursor = context.getSettings().isShowRemoteCursor();
74 }
75
76 private void setUserInputEnabled(boolean enable, boolean convertToAscii) {
77 if (enable == isUserInputEnabled) return;
78 isUserInputEnabled = enable;
79 if (enable) {
80 if (null == mouseEventListener) {
81 mouseEventListener = new MouseEventListener(this, context, scaleFactor);
82 }
83 addMouseListener(mouseEventListener);
84 addMouseMotionListener(mouseEventListener);
85 addMouseWheelListener(mouseEventListener);
86
87 setFocusTraversalKeysEnabled(false);
88 if (null == keyEventListener) {
89 keyEventListener = new KeyEventListener(context);
90 if (modifierButtonListener != null) {
91 keyEventListener.addModifierListener(modifierButtonListener);
92 }
93 }
94 keyEventListener.setConvertToAscii(convertToAscii);
95 addKeyListener(keyEventListener);
96 enableInputMethods(false);
97 } else {
98 removeMouseListener(mouseEventListener);
99 removeMouseMotionListener(mouseEventListener);
100 removeMouseWheelListener(mouseEventListener);
101 removeKeyListener(keyEventListener);
102 }
103 }
104
105 @Override
106 public Renderer createRenderer(Reader reader, int width, int height, PixelFormat pixelFormat) {
107 renderer = new RendererImpl(reader, width, height, pixelFormat);
108 synchronized (renderer) {
109 cursor = renderer.getCursor();
110 }
111 init(renderer.getWidth(), renderer.getHeight());
112 updateFrameSize();
113 return renderer;
114 }
115
116 private void init(int width, int height) {
117 this.width = width;
118 this.height = height;
119 setSize(getPreferredSize());
120 }
121
122 private void updateFrameSize() {
123 setSize(getPreferredSize());
124 viewer.packContainer();
125 requestFocus();
126 }
127
128 @Override
129 public void paintComponent(Graphics g) {
130 ((Graphics2D)g).scale(scaleFactor, scaleFactor);
131 ((Graphics2D) g).setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
132 synchronized (renderer) {
133 Image offscreenImage = renderer.getOffscreenImage();
134 if (offscreenImage != null) {
135 g.drawImage(offscreenImage, 0, 0, null);
136 }
137 }
138 synchronized (cursor) {
139 Image cursorImage = cursor.getImage();
140 if (showCursor && cursorImage != null &&
141 (scaleFactor != 1 ||
142 g.getClipBounds().intersects(cursor.rX, cursor.rY, cursor.width, cursor.height))) {
143 g.drawImage(cursorImage, cursor.rX, cursor.rY, null);
144 }
145 }
146 }
147
148 @Override
149 public Dimension getPreferredSize() {
150 return new Dimension((int)(this.width * scaleFactor), (int)(this.height * scaleFactor));
151 }
152
153 @Override
154 public Dimension getMinimumSize() {
155 return getPreferredSize();
156 }
157
158 @Override
159 public Dimension getMaximumSize() {
160 return getPreferredSize();
161 }
162
163 /**
164 * Saves context and simply invokes native JPanel repaint method which
165 * asyncroniously register repaint request using invokeLater to repaint be
166 * runned in Swing event dispatcher thread. So may be called from other
167 * threads.
168 */
169 @Override
170 public void repaintBitmap(FramebufferUpdateRectangle rect) {
171 repaintBitmap(rect.x, rect.y, rect.width, rect.height);
172 }
173
174 @Override
175 public void repaintBitmap(int x, int y, int width, int height) {
176 repaint((int)(x * scaleFactor), (int)(y * scaleFactor),
177 (int)Math.ceil(width * scaleFactor), (int)Math.ceil(height * scaleFactor));
178 }
179
180 @Override
181 public void repaintCursor() {
182 synchronized (cursor) {
183 repaint((int)(cursor.oldRX * scaleFactor), (int)(cursor.oldRY * scaleFactor),
184 (int)Math.ceil(cursor.oldWidth * scaleFactor) + 1, (int)Math.ceil(cursor.oldHeight * scaleFactor) + 1);
185 repaint((int)(cursor.rX * scaleFactor), (int)(cursor.rY * scaleFactor),
186 (int)Math.ceil(cursor.width * scaleFactor) + 1, (int)Math.ceil(cursor.height * scaleFactor) + 1);
187 }
188 }
189
190 @Override
191 public void updateCursorPosition(short x, short y) {
192 synchronized (cursor) {
193 cursor.updatePosition(x, y);
194 repaintCursor();
195 }
196 }
197
198 private void showCursor(boolean show) {
199 synchronized (cursor) {
200 showCursor = show;
201 }
202 }
203
204 public void addModifierListener(ModifierButtonEventListener modifierButtonListener) {
205 this.modifierButtonListener = modifierButtonListener;
206 if (keyEventListener != null) {
207 keyEventListener.addModifierListener(modifierButtonListener);
208 }
209 }
210
211 @Override
212 public void settingsChanged(SettingsChangedEvent e) {
213 if (ProtocolSettings.isRfbSettingsChangedFired(e)) {
214 ProtocolSettings settings = (ProtocolSettings) e.getSource();
215 setUserInputEnabled( ! settings.isViewOnly(), settings.isConvertToAscii());
216 showCursor(settings.isShowRemoteCursor());
217 } else if (UiSettings.isUiSettingsChangedFired(e)) {
218 UiSettings settings = (UiSettings) e.getSource();
219 scaleFactor = settings.getScaleFactor();
220 }
221 mouseEventListener.setScaleFactor(scaleFactor);
222 updateFrameSize();
223 }
224
225 @Override
226 public void setPixelFormat(PixelFormat pixelFormat) {
227 if (renderer != null) {
228 renderer.initPixelFormat(pixelFormat);
229 }
230 }
231
232 }