- if (!src || !dst)
- returnCode(ERR);
-
- /* make sure rectangle exists in source */
- if ((sminrow + dmaxrow - dminrow) > (src->_maxy + 1) ||
- (smincol + dmaxcol - dmincol) > (src->_maxx + 1)) {
- returnCode(ERR);
- }
-
- T(("rectangle exists in source"));
-
- /* make sure rectangle fits in destination */
- if (dmaxrow > dst->_maxy || dmaxcol > dst->_maxx) {
- returnCode(ERR);
- }
-
- T(("rectangle fits in destination"));
-
- for (dy = dminrow, sy = sminrow; dy <= dmaxrow; sy++, dy++) {
- touched = FALSE;
- for (dx = dmincol, sx = smincol; dx <= dmaxcol; sx++, dx++) {
- if (over) {
- if ((CharOf(src->_line[sy].text[sx]) != L(' ')) &&
- (!CharEq(dst->_line[dy].text[dx], src->_line[sy].text[sx]))) {
- dst->_line[dy].text[dx] = src->_line[sy].text[sx];
- SetAttr(dst->_line[dy].text[dx],
- (AttrOf(src->_line[sy].text[sx]) & mask) | bk);
- touched = TRUE;
- }
- } else {
- if (!CharEq(dst->_line[dy].text[dx], src->_line[sy].text[sx])) {
- dst->_line[dy].text[dx] = src->_line[sy].text[sx];
- touched = TRUE;
+ if (src && dst) {
+ _nc_lock_global(curses);
+
+ bk = AttrOf(dst->_nc_bkgd);
+ mask = ~(attr_t) ((bk & A_COLOR) ? A_COLOR : 0);
+
+ /* make sure rectangle exists in source */
+ if ((sminrow + dmaxrow - dminrow) <= (src->_maxy + 1) &&
+ (smincol + dmaxcol - dmincol) <= (src->_maxx + 1)) {
+
+ T(("rectangle exists in source"));
+
+ /* make sure rectangle fits in destination */
+ if (dmaxrow <= dst->_maxy && dmaxcol <= dst->_maxx) {
+
+ T(("rectangle fits in destination"));
+
+ for (dy = dminrow, sy = sminrow;
+ dy <= dmaxrow;
+ sy++, dy++) {
+
+ touched = FALSE;
+ for (dx = dmincol, sx = smincol;
+ dx <= dmaxcol;
+ sx++, dx++) {
+ if (over) {
+ if ((CharOf(src->_line[sy].text[sx]) != L(' ')) &&
+ (!CharEq(dst->_line[dy].text[dx],
+ src->_line[sy].text[sx]))) {
+ dst->_line[dy].text[dx] =
+ src->_line[sy].text[sx];
+ SetAttr(dst->_line[dy].text[dx],
+ ((AttrOf(src->_line[sy].text[sx]) &
+ mask) | bk));
+ touched = TRUE;
+ }
+ } else {
+ if (!CharEq(dst->_line[dy].text[dx],
+ src->_line[sy].text[sx])) {
+ dst->_line[dy].text[dx] =
+ src->_line[sy].text[sx];
+ touched = TRUE;
+ }
+ }
+ }
+ if (touched) {
+ touchline(dst, dminrow, (dmaxrow - dminrow + 1));
+ }