| 1 | package de.uka.ipd.sdq.pcm.gmf.resource.editors; |
| 2 | |
| 3 | import org.eclipse.jface.text.BadLocationException; |
| 4 | import org.eclipse.jface.text.IDocument; |
| 5 | import org.eclipse.jface.text.ITextDoubleClickStrategy; |
| 6 | import org.eclipse.jface.text.ITextViewer; |
| 7 | |
| 8 | public class XMLDoubleClickStrategy implements ITextDoubleClickStrategy { |
| 9 | protected ITextViewer fText; |
| 10 | |
| 11 | public void doubleClicked(ITextViewer part) { |
| 12 | int pos = part.getSelectedRange().x; |
| 13 | |
| 14 | if (pos < 0) |
| 15 | return; |
| 16 | |
| 17 | fText = part; |
| 18 | |
| 19 | if (!selectComment(pos)) { |
| 20 | selectWord(pos); |
| 21 | } |
| 22 | } |
| 23 | protected boolean selectComment(int caretPos) { |
| 24 | IDocument doc = fText.getDocument(); |
| 25 | int startPos, endPos; |
| 26 | |
| 27 | try { |
| 28 | int pos = caretPos; |
| 29 | char c = ' '; |
| 30 | |
| 31 | while (pos >= 0) { |
| 32 | c = doc.getChar(pos); |
| 33 | if (c == '\\') { |
| 34 | pos -= 2; |
| 35 | continue; |
| 36 | } |
| 37 | if (c == Character.LINE_SEPARATOR || c == '\"') |
| 38 | break; |
| 39 | --pos; |
| 40 | } |
| 41 | |
| 42 | if (c != '\"') |
| 43 | return false; |
| 44 | |
| 45 | startPos = pos; |
| 46 | |
| 47 | pos = caretPos; |
| 48 | int length = doc.getLength(); |
| 49 | c = ' '; |
| 50 | |
| 51 | while (pos < length) { |
| 52 | c = doc.getChar(pos); |
| 53 | if (c == Character.LINE_SEPARATOR || c == '\"') |
| 54 | break; |
| 55 | ++pos; |
| 56 | } |
| 57 | if (c != '\"') |
| 58 | return false; |
| 59 | |
| 60 | endPos = pos; |
| 61 | |
| 62 | int offset = startPos + 1; |
| 63 | int len = endPos - offset; |
| 64 | fText.setSelectedRange(offset, len); |
| 65 | return true; |
| 66 | } catch (BadLocationException x) { |
| 67 | } |
| 68 | |
| 69 | return false; |
| 70 | } |
| 71 | protected boolean selectWord(int caretPos) { |
| 72 | |
| 73 | IDocument doc = fText.getDocument(); |
| 74 | int startPos, endPos; |
| 75 | |
| 76 | try { |
| 77 | |
| 78 | int pos = caretPos; |
| 79 | char c; |
| 80 | |
| 81 | while (pos >= 0) { |
| 82 | c = doc.getChar(pos); |
| 83 | if (!Character.isJavaIdentifierPart(c)) |
| 84 | break; |
| 85 | --pos; |
| 86 | } |
| 87 | |
| 88 | startPos = pos; |
| 89 | |
| 90 | pos = caretPos; |
| 91 | int length = doc.getLength(); |
| 92 | |
| 93 | while (pos < length) { |
| 94 | c = doc.getChar(pos); |
| 95 | if (!Character.isJavaIdentifierPart(c)) |
| 96 | break; |
| 97 | ++pos; |
| 98 | } |
| 99 | |
| 100 | endPos = pos; |
| 101 | selectRange(startPos, endPos); |
| 102 | return true; |
| 103 | |
| 104 | } catch (BadLocationException x) { |
| 105 | } |
| 106 | |
| 107 | return false; |
| 108 | } |
| 109 | |
| 110 | private void selectRange(int startPos, int stopPos) { |
| 111 | int offset = startPos + 1; |
| 112 | int length = stopPos - offset; |
| 113 | fText.setSelectedRange(offset, length); |
| 114 | } |
| 115 | } |