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Bugfix: Correct boundary checking for increasing col/rowspan

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Michael Stapelberg 2009-03-05 17:23:13 +01:00
parent 906914fe61
commit c5dffde101
1 changed files with 25 additions and 15 deletions
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40
src/commands.c
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@ -244,17 +244,18 @@ static void snap_current_container(xcb_connection_t *conn, direction_t direction
/* Snap to the left is actually a move to the left and then a snap right */
if (!cell_exists(container->col - 1, container->row) ||
CUR_TABLE[container->col-1][container->row]->currently_focused != NULL) {
printf("cannot snap to right - the cell is already used\n");
printf("cannot snap to left - the cell is already used\n");
return;
}
move_current_window(conn, D_LEFT);
snap_current_container(conn, D_RIGHT);
return;
case D_RIGHT:
case D_RIGHT: {
/* Check if the cell is used */
if (!cell_exists(container->col + 1, container->row) ||
CUR_TABLE[container->col+1][container->row]->currently_focused != NULL) {
int new_col = container->col + container->colspan;
if (!cell_exists(new_col, container->row) ||
CUR_TABLE[new_col][container->row]->currently_focused != NULL) {
printf("cannot snap to right - the cell is already used\n");
return;
}
@ -263,37 +264,46 @@ static void snap_current_container(xcb_connection_t *conn, direction_t direction
* If so, reduce their rowspan. */
for (int i = container->row-1; i >= 0; i--) {
printf("we got cell %d, %d with rowspan %d\n",
container->col+1, i, CUR_TABLE[container->col+1][i]->rowspan);
while ((CUR_TABLE[container->col+1][i]->rowspan-1) >= (container->row - i))
CUR_TABLE[container->col+1][i]->rowspan--;
printf("new rowspan = %d\n", CUR_TABLE[container->col+1][i]->rowspan);
new_col, i, CUR_TABLE[new_col][i]->rowspan);
while ((CUR_TABLE[new_col][i]->rowspan-1) >= (container->row - i))
CUR_TABLE[new_col][i]->rowspan--;
printf("new rowspan = %d\n", CUR_TABLE[new_col][i]->rowspan);
}
container->colspan++;
break;
}
case D_UP:
if (!cell_exists(container->col, container->row - 1) ||
CUR_TABLE[container->col][container->row-1]->currently_focused != NULL) {
printf("cannot snap to top - the cell is already used\n");
return;
}
move_current_window(conn, D_UP);
snap_current_container(conn, D_DOWN);
return;
case D_DOWN:
case D_DOWN: {
printf("snapping down\n");
if (!cell_exists(container->col, container->row+1) ||
CUR_TABLE[container->col][container->row+1]->currently_focused != NULL) {
int new_row = container->row + container->rowspan;
if (!cell_exists(container->col, new_row) ||
CUR_TABLE[container->col][new_row]->currently_focused != NULL) {
printf("cannot snap down - the cell is already used\n");
return;
}
for (int i = container->col-1; i >= 0; i--) {
printf("we got cell %d, %d with colspan %d\n",
i, container->row+1, CUR_TABLE[i][container->row+1]->colspan);
while ((CUR_TABLE[i][container->row+1]->colspan-1) >= (container->col - i))
CUR_TABLE[i][container->row+1]->colspan--;
printf("new colspan = %d\n", CUR_TABLE[i][container->row+1]->colspan);
i, new_row, CUR_TABLE[i][new_row]->colspan);
while ((CUR_TABLE[i][new_row]->colspan-1) >= (container->col - i))
CUR_TABLE[i][new_row]->colspan--;
printf("new colspan = %d\n", CUR_TABLE[i][new_row]->colspan);
}
container->rowspan++;
break;
}
}
render_layout(conn);