| /******************************************************************************* |
| * Copyright (c) 2009 University of Illinois at Urbana-Champaign and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * UIUC - Initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.photran.internal.ui.actions; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.OperationCanceledException; |
| import org.eclipse.ltk.core.refactoring.RefactoringStatus; |
| import org.eclipse.photran.internal.core.lexer.Token; |
| import org.eclipse.photran.internal.core.parser.ASTPrintStmtNode; |
| import org.eclipse.photran.internal.core.parser.ASTStringConstNode; |
| import org.eclipse.photran.internal.core.parser.IASTListNode; |
| import org.eclipse.photran.internal.core.refactoring.infrastructure.FortranEditorRefactoring; |
| import org.eclipse.photran.internal.core.vpg.PhotranVPG; |
| |
| /** |
| * An Easter egg :-) |
| * <p> |
| * When the cursor is moved over a statement like |
| * <pre> |
| * print *, "Hi" |
| * </pre> |
| * (where "Hi" can be any literal string) and the user presses Ctrl+Alt+Command+Shift+6, the |
| * statement is transformed into seven print statements using a banner font, i.e., |
| * <pre> |
| * print *, "HH HH IIIIIIII " |
| * print *, "HH HH II " |
| * print *, "HH HH II " |
| * print *, "HHHHHHHH II " |
| * print *, "HH HH II " |
| * print *, "HH HH II " |
| * print *, "HH HH IIIIIIII " |
| * </pre> |
| * <p> |
| * The project must have analysis/refactoring enabled. |
| * <p> |
| * Since the key combination requires the Command key to be pressed, this is effectively available |
| * only on Macs. |
| * |
| * @author Jeff Overbey |
| */ |
| public class EasterEgg extends FortranEditorRefactoring |
| { |
| private ASTPrintStmtNode printStmt = null; |
| private String string = null; |
| |
| @Override |
| public String getName() |
| { |
| return "Easter Egg"; //$NON-NLS-1$ |
| } |
| |
| @Override |
| protected void doCheckInitialConditions(RefactoringStatus status, IProgressMonitor pm) throws PreconditionFailure |
| { |
| if (!canRunEasterEgg()) |
| status.addFatalError("The selected operation is not available."); // Bogus but common error message //$NON-NLS-1$ |
| } |
| |
| private boolean canRunEasterEgg() |
| { |
| if (!PhotranVPG.getInstance().doesProjectHaveRefactoringEnabled(fileInEditor)) return false; |
| |
| Token token = findEnclosingToken(this.astOfFileInEditor, this.selectedRegionInEditor); |
| if (token == null) return false; |
| |
| printStmt = token.findNearestAncestor(ASTPrintStmtNode.class); |
| if (printStmt == null) return false; |
| |
| if (printStmt.getOutputItemList() == null |
| || printStmt.getOutputItemList().getSingleExpr() == null |
| || !(printStmt.getOutputItemList().getSingleExpr() instanceof ASTStringConstNode)) |
| return false; |
| |
| ASTStringConstNode stringConst = (ASTStringConstNode)printStmt.getOutputItemList().getSingleExpr(); |
| if (stringConst.getSubstringRange() != null) |
| return false; |
| |
| if (!(printStmt.getParent() instanceof IASTListNode)) return false; |
| |
| string = removeQuotes(stringConst.getStringConst().getText()); |
| return true; |
| } |
| |
| private String removeQuotes(String string) |
| { |
| string = string.substring(1, string.length()-1); |
| string = string.replaceAll("''", "'"); //$NON-NLS-1$ //$NON-NLS-2$ |
| string = string.replaceAll("\"\"", "\""); //$NON-NLS-1$ //$NON-NLS-2$ |
| return string; |
| } |
| |
| @Override |
| protected void doCheckFinalConditions(RefactoringStatus status, IProgressMonitor pm) throws PreconditionFailure |
| { |
| } |
| |
| @SuppressWarnings({ "unchecked", "rawtypes" }) |
| @Override |
| protected void doCreateChange(IProgressMonitor pm) throws CoreException, OperationCanceledException |
| { |
| try |
| { |
| ASTPrintStmtNode[] newStmts = new ASTPrintStmtNode[FONT_HEIGHT]; |
| for (int i = FONT_HEIGHT-1; i >= 0; i--) |
| { |
| newStmts[i] = (ASTPrintStmtNode)printStmt.clone(); |
| ASTStringConstNode stringConst = (ASTStringConstNode)newStmts[i].getOutputItemList().getSingleExpr(); |
| stringConst.getStringConst().setText("\"" + rasterize(i, string) + "\""); //$NON-NLS-1$ //$NON-NLS-2$ |
| |
| if (i != 0) |
| removeAllWhitetextExceptIndentation(newStmts[i].findFirstToken()); |
| |
| ((IASTListNode)printStmt.getParent()).insertAfter(printStmt, newStmts[i]); |
| } |
| printStmt.removeFromTree(); |
| |
| this.addChangeFromModifiedAST(this.fileInEditor, pm); |
| } |
| finally |
| { |
| vpg.releaseAllASTs(); |
| } |
| } |
| |
| private void removeAllWhitetextExceptIndentation(Token token) |
| { |
| String s = token.getWhiteBefore(); |
| int lf = s.lastIndexOf('\n'); |
| if (lf >= 0) |
| token.setWhiteBefore(s.substring(lf+1)); |
| } |
| |
| private static final int FONT_WIDTH = 9; |
| private static final int FONT_HEIGHT = 7; |
| |
| private static String[] font = new String[] |
| { |
| //12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678", |
| " AAAA BBBBBBB CCCCC DDDDDD EEEEEEEE FFFFFFFF GGGGG HH HH IIIIIIII JJJ KK KK LL MM MM NNN NN OOOO PPPPPPP QQQQ RRRRRRR SSSSSSS TTTTTTTT UU UU VV VV WW WW XX XX YY YY ZZZZZZZZ 11 222222 333333 444 55555555 6666 77777777 888888 9999 0000 !! ???? ", //$NON-NLS-1$ |
| " AA AA BB BB CC C DD DD EE FF GG G HH HH II JJ KK KK LL MMM MMM NNNN NN OO OO PP PP QQ QQ RR RR SS TT UU UU VV VV WW WW XX XX YY YY ZZ 1111 22 22 33 33 4444 55 66 77 88 88 99 99 00 00 !!!! ?? ?? ", //$NON-NLS-1$ |
| " AA AA BB BB CC DD DD EE FF GG HH HH II JJ KK KK LL MM MM MM NN NN NN OO OO PP PP QQ QQ RR RR SS TT UU UU VV VV WW WW XXXX YYYY ZZ 11 22 33 44 44 55 555 66 77 88 88 99 999 00 00 !!!! ?? ", //$NON-NLS-1$ |
| " AAAAAAAA BBBBBB CC DD DD EEEEE FFFFF GG GGGG HHHHHHHH II JJ KKKK LL MM MM MM NN NN NN OO OO PPPPPPP QQ QQ RRRRRRR SSSSSS TT UU UU VV VV WW WW WW XX YY ZZ 11 222 333 44 44 555 55 66 6666 77 888888 9999 99 00 00 !! ?? ", //$NON-NLS-1$ |
| " AA AA BB BB CC DD DD EE FF GG GG HH HH II JJ JJ KK KK LL MM MM NN NN NN OO OO PP QQ Q QQ RR RR SS TT UU UU VV VV WW WW WW XXXX YY ZZ 11 22 33 4444444 55 666 66 77 88 88 99 00 00 !! ?? ", //$NON-NLS-1$ |
| " AA AA BB BB CC C DD DD EE FF GG GG HH HH II JJ JJ KK KK LL MM MM NN NNNN OO OO PP QQ QQ RR RR SS TT UU UU VVVV WWW WWW XX XX YY ZZ 11 22 33 33 44 5 55 66 66 77 88 88 99 00 00 ... ", //$NON-NLS-1$ |
| " AA AA BBBBBBB CCCCC DDDDDD EEEEEEEE FF GGGGG HH HH IIIIIIII JJJJJ KK KK LLLLLLLL MM MM NN NNN OOOO PP QQQQ Q RR RR SSSSSSS TT UUUUUU VV WW WW XX XX YY ZZZZZZZZ 11111111 22222222 333333 44 555555 6666 77 888888 9999 0000 ... !! ?? ", //$NON-NLS-1$ |
| }; |
| |
| private static int index(char ch) |
| { |
| switch (Character.toUpperCase(ch)) |
| { |
| case 'A': return 1; |
| case 'B': return 2; |
| case 'C': return 3; |
| case 'D': return 4; |
| case 'E': return 5; |
| case 'F': return 6; |
| case 'G': return 7; |
| case 'H': return 8; |
| case 'I': return 9; |
| case 'J': return 10; |
| case 'K': return 11; |
| case 'L': return 12; |
| case 'M': return 13; |
| case 'N': return 14; |
| case 'O': return 15; |
| case 'P': return 16; |
| case 'Q': return 17; |
| case 'R': return 18; |
| case 'S': return 19; |
| case 'T': return 20; |
| case 'U': return 21; |
| case 'V': return 22; |
| case 'W': return 23; |
| case 'X': return 24; |
| case 'Y': return 25; |
| case 'Z': return 26; |
| case '1': return 27; |
| case '2': return 28; |
| case '3': return 29; |
| case '4': return 30; |
| case '5': return 31; |
| case '6': return 32; |
| case '7': return 33; |
| case '8': return 34; |
| case '9': return 35; |
| case '0': return 36; |
| case '.': return 37; |
| case '!': return 38; |
| case '?': return 39; |
| default: return 0; |
| } |
| } |
| |
| private static String rasterize(int line, String string) |
| { |
| StringBuilder sb = new StringBuilder(string.length() * FONT_WIDTH); |
| for (int i = 0; i < string.length(); i++) |
| sb.append(rasterize(line, string.charAt(i))); |
| return sb.toString(); |
| } |
| |
| private static String rasterize(int line, char ch) |
| { |
| int start = index(ch) * FONT_WIDTH; |
| int end = start + FONT_WIDTH; |
| return font[line].substring(start, end); |
| } |
| } |
