+ if (res > av.alignment.getWidth())\r
+ {\r
+ res = av.alignment.getWidth() - 1;\r
+ }\r
+\r
+ if (stretchGroup.getEndRes() == res)\r
+ {\r
+ // Edit end res position of selected group\r
+ changeEndRes = true;\r
+ }\r
+ else if (stretchGroup.getStartRes() == res)\r
+ {\r
+ // Edit start res position of selected group\r
+ changeStartRes = true;\r
+ }\r
+\r
+ if (res < av.getStartRes())\r
+ {\r
+ res = av.getStartRes();\r
+ }\r
+ else if (res > av.getEndRes())\r
+ {\r
+ res = av.getEndRes();\r
+ }\r
+\r
+ if (changeEndRes)\r
+ {\r
+ if (res > (stretchGroup.getStartRes() - 1))\r
+ {\r
+ stretchGroup.setEndRes(res);\r
+ }\r
+ }\r
+ else if (changeStartRes)\r
+ {\r
+ if (res < (stretchGroup.getEndRes() + 1))\r
+ {\r
+ stretchGroup.setStartRes(res);\r
+ }\r
+ }\r
+\r
+ int dragDirection = 0;\r
+\r
+ if (y > oldSeq)\r
+ {\r
+ dragDirection = 1;\r
+ }\r
+ else if (y < oldSeq)\r
+ {\r
+ dragDirection = -1;\r
+ }\r
+\r
+ while ( (y != oldSeq) && (oldSeq > 0) && (y < av.alignment.getHeight()))\r
+ {\r
+ // This routine ensures we don't skip any sequences, as the\r
+ // selection is quite slow.\r
+ Sequence seq = (Sequence) av.getAlignment().getSequenceAt(oldSeq);\r
+\r
+ oldSeq += dragDirection;\r
+\r
+ Sequence nextSeq = (Sequence) av.getAlignment().getSequenceAt(oldSeq);\r
+\r
+ if (stretchGroup.sequences.contains(nextSeq))\r
+ {\r
+ stretchGroup.deleteSequence(seq, false);\r
+ stretchGroup.deleteSequence(nextSeq, false);\r
+ }\r
+ else\r
+ {\r
+ if (seq != null)\r
+ {\r
+ stretchGroup.addSequence(seq, false);\r
+ }\r
+\r
+ stretchGroup.addSequence(nextSeq, false);\r
+ }\r
+ }\r
+\r
+ oldSeq = y;\r
+ mouseDragging = true;\r
+\r
+ if (scrollThread != null)\r
+ {\r
+ scrollThread.setEvent(evt);\r
+ }\r
+\r
+ repaint();\r