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comparison org.eclipse.swt.win32.win32.x86/src/org/eclipse/swt/internal/Library.d @ 0:6dd524f61e62

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add dwt win and basic java stuff
author Frank Benoit <benoit@tionex.de>
date Mon, 02 Mar 2009 14:44:16 +0100
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children 950d84783eac
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-1:000000000000 0:6dd524f61e62
1 /*******************************************************************************
2 * Copyright (c) 2000, 2008 IBM Corporation and others.
3 * All rights reserved. This program and the accompanying materials
4 * are made available under the terms of the Eclipse Public License v1.0
5 * which accompanies this distribution, and is available at
6 * http://www.eclipse.org/legal/epl-v10.html
7 *
8 * Contributors:
9 * IBM Corporation - initial API and implementation
10 * Port to the D programming language:
11 * Frank Benoit <benoit@tionex.de>
12 *******************************************************************************/
13 module org.eclipse.swt.internal.Library;
14
15 import tango.util.Convert;
16 import java.lang.all;
17
18 // do it here, so it can be evaluated at compile time
19 // this saves a static ctor.
20 private int buildSWT_VERSION (int major, int minor) {
21 return major * 1000 + minor;
22 }
23
24
25 public class Library {
26
27 /* SWT Version - Mmmm (M=major, mmm=minor) */
28
29 /**
30 * SWT Major version number (must be >= 0)
31 */
32 static const int MAJOR_VERSION = 3;
33
34 /**
35 * SWT Minor version number (must be in the range 0..999)
36 */
37 static const int MINOR_VERSION = 449;
38
39 /**
40 * SWT revision number (must be >= 0)
41 */
42 static const int REVISION = 0;
43
44 /**
45 * The JAVA and SWT versions
46 */
47 //public static const int JAVA_VERSION;
48 public static const int SWT_VERSION = .buildSWT_VERSION(MAJOR_VERSION, MINOR_VERSION);
49
50 version( Windows ){
51 static const String SEPARATOR = "\r\n";
52 }
53 else {
54 static assert( false, "only windows supported for this port" );
55 }
56
57
58 static int parseVersion(String aVersion) {
59 if (aVersion == null) return 0;
60 int major = 0, minor = 0, micro = 0;
61 int length = aVersion.length, index = 0, start = 0;
62 bool isDigit( char c ){
63 return c >= '0' && c <= '9';
64 }
65 while (index < length && isDigit(aVersion[index])) index++;
66 try {
67 if (start < length) major = to!(int)( aVersion[start .. index] );
68 } catch (ConversionException e) {}
69 start = ++index;
70 while (index < length && isDigit(aVersion[index])) index++;
71 try {
72 if (start < length) minor = to!(int)(aVersion[start .. index]);
73 } catch (ConversionException e) {}
74 start = ++index;
75 while (index < length && isDigit(aVersion[index])) index++;
76 try {
77 if (start < length) micro = to!(int)(aVersion[start .. index]);
78 } catch (ConversionException e) {}
79 return buildJAVA_VERSION(major, minor, micro);
80 }
81
82 /**
83 * Returns the Java version number as an integer.
84 *
85 * @param major
86 * @param minor
87 * @param micro
88 * @return the version
89 */
90 public static int buildJAVA_VERSION (int major, int minor, int micro) {
91 return (major << 16) + (minor << 8) + micro;
92 }
93
94 /**
95 * Returns the SWT version number as an integer.
96 *
97 * @param major
98 * @param minor
99 * @return the version
100 */
101 public static int buildSWT_VERSION (int major, int minor) {
102 return .buildSWT_VERSION(major, minor);
103 }
104 /+ PORTING_LEFT
105 static bool extract (String fileName, String mappedName) {
106 FileOutputStream os = null;
107 InputStream is = null;
108 File file = new File(fileName);
109 try {
110 if (!file.exists ()) {
111 is = Library.class.getResourceAsStream ("/" + mappedName); //$NON-NLS-1$
112 if (is != null) {
113 int read;
114 byte [] buffer = new byte [4096];
115 os = new FileOutputStream (fileName);
116 while ((read = is.read (buffer)) != -1) {
117 os.write(buffer, 0, read);
118 }
119 os.close ();
120 is.close ();
121 if (!Platform.PLATFORM.equals ("win32")) { //$NON-NLS-1$
122 try {
123 Runtime.getRuntime ().exec (new String []{"chmod", "755", fileName}).waitFor(); //$NON-NLS-1$ //$NON-NLS-2$
124 } catch (Throwable e) {}
125 }
126 if (load (fileName)) return true;
127 }
128 }
129 } catch (Throwable e) {
130 try {
131 if (os != null) os.close ();
132 } catch (IOException e1) {}
133 try {
134 if (is != null) is.close ();
135 } catch (IOException e1) {}
136 }
137 if (file.exists ()) file.delete ();
138 return false;
139 }
140
141 static bool load (String libName) {
142 try {
143 if (libName.indexOf (SEPARATOR) != -1) {
144 System.load (libName);
145 } else {
146 System.loadLibrary (libName);
147 }
148 return true;
149 } catch (UnsatisfiedLinkError e) {}
150 return false;
151 }
152
153 /**
154 * Loads the shared library that matches the version of the
155 * Java code which is currently running. SWT shared libraries
156 * follow an encoding scheme where the major, minor and revision
157 * numbers are embedded in the library name and this along with
158 * <code>name</code> is used to load the library. If this fails,
159 * <code>name</code> is used in another attempt to load the library,
160 * this time ignoring the SWT version encoding scheme.
161 *
162 * @param name the name of the library to load
163 */
164 public static void loadLibrary (String name) {
165 loadLibrary (name, true);
166 }
167
168 /**
169 * Loads the shared library that matches the version of the
170 * Java code which is currently running. SWT shared libraries
171 * follow an encoding scheme where the major, minor and revision
172 * numbers are embedded in the library name and this along with
173 * <code>name</code> is used to load the library. If this fails,
174 * <code>name</code> is used in another attempt to load the library,
175 * this time ignoring the SWT version encoding scheme.
176 *
177 * @param name the name of the library to load
178 * @param mapName true if the name should be mapped, false otherwise
179 */
180 public static void loadLibrary (String name, boolean mapName) {
181 String prop = System.getProperty ("sun.arch.data.model"); //$NON-NLS-1$
182 if (prop is null) prop = System.getProperty ("com.ibm.vm.bitmode"); //$NON-NLS-1$
183 if (prop !is null) {
184 if ("32".equals (prop)) { //$NON-NLS-1$
185 if (0x1FFFFFFFFL is (int /*long*/)0x1FFFFFFFFL) {
186 throw new UnsatisfiedLinkError ("Cannot load 64-bit SWT libraries on 32-bit JVM"); //$NON-NLS-1$
187 }
188 }
189 if ("64".equals (prop)) { //$NON-NLS-1$
190 if (0x1FFFFFFFFL !is (int /*long*/)0x1FFFFFFFFL) {
191 throw new UnsatisfiedLinkError ("Cannot load 32-bit SWT libraries on 64-bit JVM"); //$NON-NLS-1$
192 }
193 }
194 }
195
196 /* Compute the library name and mapped name */
197 String libName1, libName2, mappedName1, mappedName2;
198 if (mapName) {
199 String version = System.getProperty ("swt.version"); //$NON-NLS-1$
200 if (version == null) {
201 version = "" + MAJOR_VERSION; //$NON-NLS-1$
202 /* Force 3 digits in minor version number */
203 if (MINOR_VERSION < 10) {
204 version += "00"; //$NON-NLS-1$
205 } else {
206 if (MINOR_VERSION < 100) version += "0"; //$NON-NLS-1$
207 }
208 version += MINOR_VERSION;
209 /* No "r" until first revision */
210 if (REVISION > 0) version += "r" + REVISION; //$NON-NLS-1$
211 }
212 libName1 = name + "-" + Platform.PLATFORM + "-" + version; //$NON-NLS-1$ //$NON-NLS-2$
213 libName2 = name + "-" + Platform.PLATFORM; //$NON-NLS-1$
214 mappedName1 = System.mapLibraryName (libName1);
215 mappedName2 = System.mapLibraryName (libName2);
216 } else {
217 libName1 = libName2 = mappedName1 = mappedName2 = name;
218 }
219
220 /* Try loading library from swt library path */
221 String path = System.getProperty ("swt.library.path"); //$NON-NLS-1$
222 if (path != null) {
223 path = new File (path).getAbsolutePath ();
224 if (load (path + SEPARATOR + mappedName1)) return;
225 if (mapName && load (path + SEPARATOR + mappedName2)) return;
226 }
227
228 /* Try loading library from java library path */
229 if (load (libName1)) return;
230 if (mapName && load (libName2)) return;
231
232 /* Try loading library from the tmp directory if swt library path is not specified */
233 if (path == null) {
234 path = System.getProperty ("java.io.tmpdir"); //$NON-NLS-1$
235 path = new File (path).getAbsolutePath ();
236 if (load (path + SEPARATOR + mappedName1)) return;
237 if (mapName && load (path + SEPARATOR + mappedName2)) return;
238 }
239
240 /* Try extracting and loading library from jar */
241 if (path != null) {
242 if (extract (path + SEPARATOR + mappedName1, mappedName1)) return;
243 if (mapName && extract (path + SEPARATOR + mappedName2, mappedName2)) return;
244 }
245
246 /* Failed to find the library */
247 throw new UnsatisfiedLinkError ("no " + libName1 + " or " + libName2 + " in swt.library.path, java.library.path or the jar file"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
248 }
249 +/
250 }