net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/editors/PHPDoubleClickStrategy.java

   1 package net.sourceforge.phpeclipse.editors;
   2
   3 import org.eclipse.jface.text.*;
   4
   5 public class PHPDoubleClickStrategy implements ITextDoubleClickStrategy {
   6         protected ITextViewer fText;
   7
   8         public PHPDoubleClickStrategy() {
   9                 super();
  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 }