void
Simple_spacer::add_spring (Real ideal, Real inverse_hooke)
{
- Spring_description desc;
+ Spring_description description;
- desc.ideal_ = ideal;
- desc.inverse_hooke_ = inverse_hooke;
- if (!desc.is_sane ())
+ description.ideal_ = ideal;
+ description.inverse_hooke_ = inverse_hooke;
+ if (!description.is_sane ())
{
programming_error ("insane spring found, setting to unit");
- desc.inverse_hooke_ = 1.0;
- desc.ideal_ = 1.0;
+ description.inverse_hooke_ = 1.0;
+ description.ideal_ = 1.0;
}
- desc.block_force_ = -desc.ideal_ / desc.inverse_hooke_;
+ description.block_force_ = -description.ideal_ / description.inverse_hooke_;
// block at distance 0
- springs_.push_back (desc);
+ springs_.push_back (description);
}
vector<Real>
this closely.
*/
-struct Rod_desc
+struct Rod_description
{
vsize r_;
Real dist_;
- bool operator< (const Rod_desc r)
+ bool operator< (const Rod_description r)
{
return r_ < r.r_;
}
- Rod_desc () {}
- Rod_desc (vsize r, Real d)
+ Rod_description ()
+ {
+ r_ = 0;
+ dist_ = 0;
+ }
+
+ Rod_description (vsize r, Real d)
{
r_ = r;
dist_ = d;
}
};
-struct Column_desc
+struct Column_description
{
- vector<Rod_desc> rods_;
- vector<Rod_desc> end_rods_; /* use these if they end at the last column of the line */
+ vector<Rod_description> rods_;
+ vector<Rod_description> end_rods_; /* use these if they end at the last column of the line */
Real ideal_;
Real inverse_hooke_;
Real end_ideal_;
Real end_inverse_hooke_;
+ SCM break_permission_;
Interval keep_inside_line_;
+
+ Column_description ()
+ {
+ ideal_ = 0;
+ inverse_hooke_ = 0;
+ end_ideal_ = 0;
+ end_inverse_hooke_ = 0;
+ break_permission_ = SCM_EOL;
+ }
};
static int compare_paper_column_rank (Grob *const &a, Grob *const &b);
*inv_hooke = (spring) ? spring->inverse_strength_ : 1.0;
}
-static Column_desc
-get_column_desc (vector<Grob*> const &cols, vsize col_index, bool line_starter)
+static Column_description
+get_column_description (vector<Grob*> const &cols, vsize col_index, bool line_starter)
{
Grob *col = cols[col_index];
if (line_starter)
col = maybe_find_prebroken_piece (col, RIGHT);
- Column_desc desc;
+ Column_description description;
Grob *next_col = next_spaceable_column (cols, col_index);
if (next_col)
- get_column_spring (col, next_col, &desc.ideal_, &desc.inverse_hooke_);
+ get_column_spring (col, next_col, &description.ideal_, &description.inverse_hooke_);
Grob *end_col = next_line_ending_column (cols, col_index);
if (end_col)
- get_column_spring (col, end_col, &desc.end_ideal_, &desc.end_inverse_hooke_);
+ get_column_spring (col, end_col, &description.end_ideal_, &description.end_inverse_hooke_);
for (SCM s = Spaceable_grob::get_minimum_distances (col);
scm_is_pair (s); s = scm_cdr (s))
if (j != VPOS)
{
if (cols[j] == other)
- desc.rods_.push_back (Rod_desc (j, scm_to_double (scm_cdar (s))));
+ description.rods_.push_back (Rod_description (j, scm_to_double (scm_cdar (s))));
else /* it must end at the LEFT prebroken_piece */
- desc.end_rods_.push_back (Rod_desc (j, scm_to_double (scm_cdar (s))));
+ description.end_rods_.push_back (Rod_description (j, scm_to_double (scm_cdar (s))));
}
}
if (!line_starter && to_boolean (col->get_property ("keep-inside-line")))
- desc.keep_inside_line_ = col->extent (col, X_AXIS);
- return desc;
+ description.keep_inside_line_ = col->extent (col, X_AXIS);
+ description.break_permission_ = col->get_property ("line-break-permission");
+ return description;
}
vector<Real>
Real line_len, Real indent, bool ragged)
{
vector<Real> force;
- force.resize (breaks.size () * breaks.size ());
+ force.resize (breaks.size () * breaks.size (), infinity_f);
- vector<Column_desc> cols;
+ vector<Column_description> cols;
vsize b = 1;
- cols.push_back (Column_desc ());
+ SCM force_break = ly_symbol2scm ("force");
+
+ cols.push_back (Column_description ());
for (vsize i = 1; i < icols.size () - 1; i++)
{
if (b < breaks.size () && breaks[b] == i)
b++;
}
if (!is_loose (icols[i]))
- cols.push_back (get_column_desc (icols, i, false));
+ cols.push_back (get_column_description (icols, i, false));
}
breaks.back () = cols.size () - 1;
for (vsize b = 0; b < breaks.size () - 1; b++)
{
- cols[breaks[b]] = get_column_desc (icols, breaks[b], true);
+ cols[breaks[b]] = get_column_description (icols, breaks[b], true);
vsize st = breaks[b];
for (vsize c = b+1; c < breaks.size (); c++)
}
spacer.solve ((b == 0) ? line_len - indent : line_len, ragged);
force[b * breaks.size () + c] = spacer.force ();
+
+ if (cols[end].break_permission_ == force_break)
+ break;
if (!spacer.fits ())
{
force[b * breaks.size () + c] = infinity_f;
Real indent,
bool ragged)
{
- vector<Column_desc> cols;
+ vector<Column_description> cols;
Simple_spacer spacer;
Column_x_positions ret;
cols.resize (ret.cols_.size () - 1);
/* since we've already put our line-ending column in the column list, we can ignore
- the end_XXX_ fields of our column_desc */
+ the end_XXX_ fields of our column_description */
for (vsize i = 0; i < cols.size (); i++)
{
- cols[i] = get_column_desc (ret.cols_, i, i == 0);
+ cols[i] = get_column_description (ret.cols_, i, i == 0);
spacer.add_spring (cols[i].ideal_, cols[i].inverse_hooke_);
}
for (vsize i = 0; i < cols.size (); i++)
- for (vsize r = 0; r < cols[i].rods_.size (); r++)
- spacer.add_rod (i, cols[i].rods_[r].r_, cols[i].rods_[r].dist_);
+ {
+ for (vsize r = 0; r < cols[i].rods_.size (); r++)
+ spacer.add_rod (i, cols[i].rods_[r].r_, cols[i].rods_[r].dist_);
+ if (!cols[i].keep_inside_line_.is_empty ())
+ {
+ spacer.add_rod (i, cols.size (), cols[i].keep_inside_line_[RIGHT]);
+ spacer.add_rod (0, i, cols[i].keep_inside_line_[LEFT]);
+ }
+ }
spacer.solve (line_len, ragged);
ret.force_ = spacer.force ();