Hello, SWT(Jasmin) World!
Posted on 1月 2nd, 2013 by cx20
SWT(Java)
SWT(Standard Widget Toolkit) は Java で GUI を扱うためのライブラリである。
IBM により AWT や Swing を置き換える目的で作成された。
以下は Jasmin による SWT の使用例となっている。
ソースコード
; Produced by NeoJasminVisitor (tinapoc) ; http://tinapoc.sourceforge.net ; The original JasminVisitor is part of the BCEL ; http://jakarta.apache.org/bcel/ ; Sun Dec 02 01:23:19 JST 2012 .bytecode 50.0 .source Hello.java .class public Hello .super java/lang/Object .method public <init>()V .limit stack 1 .limit locals 1 .var 0 is this LHello; from Label0 to Label1 Label0: .line 5 0: aload_0 1: invokespecial java/lang/Object/<init>()V Label1: 4: return .end method .method public static main([Ljava/lang/String;)V .limit stack 4 .limit locals 5 .var 0 is arg0 [Ljava/lang/String; from Label3 to Label4 Label3: .line 7 0: new org/eclipse/swt/widgets/Display 3: dup 4: invokespecial org/eclipse/swt/widgets/Display/<init>()V 7: astore_1 .line 8 8: new org/eclipse/swt/widgets/Shell 11: dup 12: aload_1 13: invokespecial org/eclipse/swt/widgets/Shell/<init>(Lorg/eclipse/swt/widgets/Display;)V 16: astore_2 .line 9 17: aload_2 18: ldc "Hello, World" 20: invokevirtual org/eclipse/swt/widgets/Shell/setText(Ljava/lang/String;)V .line 12 23: new org/eclipse/swt/layout/FillLayout 26: dup 27: sipush 512 30: invokespecial org/eclipse/swt/layout/FillLayout/<init>(I)V 33: astore_3 .line 13 34: aload_2 35: aload_3 36: invokevirtual org/eclipse/swt/widgets/Shell/setLayout(Lorg/eclipse/swt/widgets/Layout;)V .line 15 39: new org/eclipse/swt/widgets/Label 42: dup 43: aload_2 44: sipush 2048 47: invokespecial org/eclipse/swt/widgets/Label/<init>(Lorg/eclipse/swt/widgets/Composite;I)V 50: astore 4 .line 16 52: aload 4 54: ldc "Hello, SWT World!" 56: invokevirtual org/eclipse/swt/widgets/Label/setText(Ljava/lang/String;)V .line 18 59: aload_2 60: sipush 640 63: sipush 480 66: invokevirtual org/eclipse/swt/widgets/Shell/setSize(II)V .line 19 69: aload_2 70: invokevirtual org/eclipse/swt/widgets/Shell/open()V Label1: .line 21 73: aload_2 74: invokevirtual org/eclipse/swt/widgets/Shell/isDisposed()Z 77: ifne Label0 .line 22 80: aload_1 81: invokevirtual org/eclipse/swt/widgets/Display/readAndDispatch()Z 84: ifne Label1 .line 23 87: aload_1 88: invokevirtual org/eclipse/swt/widgets/Display/sleep()Z 91: pop 92: goto Label1 Label0: .line 27 95: aload_1 96: invokevirtual org/eclipse/swt/widgets/Display/dispose()V Label4: .line 28 99: return .end method |
コンパイル＆実行方法
C:¥> java -jar jasmin.jar Hello.j C:¥> javaw -cp org.eclipse.swt.win32.win32.x86_3.6.1.v3655c.jar;. Hello |
実行結果
+------------------------------------------+ |Hello, World! [_][~][X]| +------------------------------------------+ |Hello, SWT World! | | | | | | | | | | | | | | | | | | | +------------------------------------------+ |
Tags: SWT