textDrag-use-cursorToHint.patch

   1 ---
   2
   3  source/textDrag.c |   20 +++++++++++++++-----
   4  1 files changed, 15 insertions(+), 5 deletions(-)
   5
   6 diff --quilt old/source/textDrag.c new/source/textDrag.c
   7 --- old/source/textDrag.c
   8 +++ new/source/textDrag.c
   9 @@ -361,12 +361,25 @@ void BlockDragSelection(TextWidget tw, i
  10
  11      /* Make the changes in the real buffer */
  12      repText = BufGetRange(tempBuf, modRangeStart - tempStart,
  13             tempModRangeEnd - tempStart);
  14      BufFree(tempBuf);
  15 +
  16      TextDBlankCursor(textD);
  17 +
  18 +    /* set cursorToHint to new cursor position to optimize redrawing */
  19 +    if (rectangular || overlay) {
  20 +        insRectEnd = insRectStart + origSel->rectEnd - origSel->rectStart;
  21 +        textD->cursorToHint = BufCountForwardDispChars(buf,
  22 +                BufCountForwardNLines(buf, insStart, tw->text.dragNLines),
  23 +                insRectEnd);
  24 +    } else {
  25 +        textD->cursorToHint = insStart + origSel->end - origSel->start;
  26 +    }
  27 +
  28      BufReplace(buf, modRangeStart, bufModRangeEnd, repText);
  29 +    textD->cursorToHint = NO_HINT;
  30      XtFree(repText);
  31
  32      /* Store the necessary information for undoing this step */
  33      tw->text.dragInsertPos = insStart;
  34      tw->text.dragRectStart = insRectStart;
  35 @@ -375,22 +388,19 @@ void BlockDragSelection(TextWidget tw, i
  36      tw->text.dragSourceDeletePos = sourceDeletePos;
  37      tw->text.dragSourceInserted = sourceInserted;
  38      tw->text.dragSourceDeleted = sourceDeleted;
  39      tw->text.dragType = dragType;
  40
  41 -    /* Reset the selection and cursor position */
  42 +    /* Reset the selection */
  43      if (rectangular || overlay) {
  44         insRectEnd = insRectStart + origSel->rectEnd - origSel->rectStart;
  45         BufRectSelect(buf, insStart, insStart + insertInserted, insRectStart,
  46                 insRectEnd);
  47 -       TextDSetInsertPosition(textD, BufCountForwardDispChars(buf,
  48 -               BufCountForwardNLines(buf, insStart, tw->text.dragNLines),
  49 -               insRectEnd));
  50      } else {
  51         BufSelect(buf, insStart, insStart + origSel->end - origSel->start);
  52 -       TextDSetInsertPosition(textD, insStart + origSel->end - origSel->start);
  53      }
  54 +
  55      TextDUnblankCursor(textD);
  56      XtCallCallbacks((Widget)tw, textNcursorMovementCallback, (XtPointer)NULL);
  57      tw->text.emTabsBeforeCursor = 0;
  58  }
  59