static gboolean
cell_has_expr_or_number_or_blank (GnmCell const * cell)
{
return (gnm_cell_is_empty (cell) ||
(cell != NULL && gnm_cell_is_number (cell)) ||
(cell != NULL && gnm_cell_has_expr (cell)));
}
/*
* cell_calc_span:
* @cell: The cell we will examine
* @col1: return value: the first column used by this cell
* @col2: return value: the last column used by this cell
*
* This routine returns the column interval used by a GnmCell.
*/
void
cell_calc_span (GnmCell const *cell, int *col1, int *col2)
{
Sheet *sheet;
int h_align, v_align, left, max_col, min_col;
int row, pos;
int cell_width_pixel, indented_w;
GnmStyle const *style;
ColRowInfo const *ci;
GnmRange const *merge_left;
GnmRange const *merge_right;
g_return_if_fail (cell != NULL);
sheet = cell->base.sheet;
style = gnm_cell_get_style (cell);
h_align = gnm_style_default_halign (style, cell);
/*
* Report only one column is used if
* - Cell is in a hidden col
* - Cell is a number
* - Cell is the top left of a merged cell
* - The text fits inside column (for non center across selection)
* - The alignment mode are set to "justify"
*/
if (sheet != NULL &&
h_align != HALIGN_CENTER_ACROSS_SELECTION &&
(gnm_cell_is_merged (cell) ||
(!sheet->display_formulas && gnm_cell_is_number (cell)))) {
*col1 = *col2 = cell->pos.col;
return;
}
v_align = gnm_style_get_align_v (style);
row = cell->pos.row;
indented_w = cell_width_pixel = gnm_cell_rendered_width (cell);
if (h_align == HALIGN_LEFT || h_align == HALIGN_RIGHT) {
indented_w += gnm_cell_rendered_offset (cell);
if (sheet->text_is_rtl)
h_align = (h_align == HALIGN_LEFT) ? HALIGN_RIGHT : HALIGN_LEFT;
}
ci = sheet_col_get_info (sheet, cell->pos.col);
if (gnm_cell_is_empty (cell) ||
!ci->visible ||
(h_align != HALIGN_CENTER_ACROSS_SELECTION &&
(gnm_style_get_wrap_text (style) ||
indented_w <= COL_INTERNAL_WIDTH (ci))) ||
h_align == HALIGN_JUSTIFY ||
h_align == HALIGN_FILL ||
h_align == HALIGN_DISTRIBUTED ||
v_align == VALIGN_JUSTIFY ||
v_align == VALIGN_DISTRIBUTED) {
*col1 = *col2 = cell->pos.col;
return;
}
gnm_sheet_merge_get_adjacent (sheet, &cell->pos, &merge_left, &merge_right);
min_col = (merge_left != NULL) ? merge_left->end.col : -1;
max_col = (merge_right != NULL) ? merge_right->start.col : gnm_sheet_get_max_cols (sheet);
*col1 = *col2 = cell->pos.col;
switch (h_align) {
case HALIGN_LEFT:
pos = cell->pos.col + 1;
left = indented_w - COL_INTERNAL_WIDTH (ci);
for (; left > 0 && pos < max_col; pos++){
ColRowInfo const *ci = sheet_col_get_info (sheet, pos);
if (ci->visible) {
if (!cellspan_is_empty (pos, cell))
return;
/* The space consumed is:
* - The margin_b from the last column
* - The width of the cell
*/
left -= ci->size_pixels - 1;
*col2 = pos;
}
}
return;
case HALIGN_RIGHT:
pos = cell->pos.col - 1;
left = indented_w - COL_INTERNAL_WIDTH (ci);
for (; left > 0 && pos > min_col; pos--){
ColRowInfo const *ci = sheet_col_get_info (sheet, pos);
if (ci->visible) {
if (!cellspan_is_empty (pos, cell))
return;
/* The space consumed is:
* - The margin_a from the last column
* - The width of this cell
*/
left -= ci->size_pixels - 1;
*col1 = pos;
}
}
return;
case HALIGN_CENTER: {
int remain_left, remain_right;
int pos_l, pos_r;
pos_l = pos_r = cell->pos.col;
left = cell_width_pixel - COL_INTERNAL_WIDTH (ci);
remain_left = left / 2 + (left % 2);
remain_right = left / 2;
for (; remain_left > 0 || remain_right > 0;){
ColRowInfo const *ci;
if (--pos_l > min_col){
ci = sheet_col_get_info (sheet, pos_l);
if (ci->visible) {
if (cellspan_is_empty (pos_l, cell)) {
remain_left -= ci->size_pixels - 1;
*col1 = pos_l;
} else
remain_left = 0;
}
} else
remain_left = 0;
if (++pos_r < max_col){
ci = sheet_col_get_info (sheet, pos_r);
if (ci->visible) {
if (cellspan_is_empty (pos_r, cell)) {
remain_right -= ci->size_pixels - 1;
*col2 = pos_r;
} else
max_col = remain_right = 0;
}
} else
remain_right = 0;
} /* for */
break;
} /* case HALIGN_CENTER */
case HALIGN_CENTER_ACROSS_SELECTION: {
int const row = cell->pos.row;
int pos_l, pos_r;
pos_l = pos_r = cell->pos.col;
while (--pos_l > min_col) {
ColRowInfo const *ci = sheet_col_get_info (sheet, pos_l);
if (ci->visible) {
if (cellspan_is_empty (pos_l, cell)) {
GnmStyle const * const style =
sheet_style_get (cell->base.sheet, pos_l, row);
if (gnm_style_get_align_h (style) != HALIGN_CENTER_ACROSS_SELECTION)
break;
*col1 = pos_l;
} else
break;
}
}
while (++pos_r < max_col) {
ColRowInfo const *ci = sheet_col_get_info (sheet, pos_r);
if (ci->visible) {
if (cellspan_is_empty (pos_r, cell)) {
GnmStyle const * const style =
sheet_style_get (cell->base.sheet, pos_r, row);
if (gnm_style_get_align_h (style) != HALIGN_CENTER_ACROSS_SELECTION)
break;
*col2 = pos_r;
} else
break;
}
}
break;
}
default:
g_warning ("Unknown horizontal alignment type %x.", h_align);
} /* switch */
}
