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constraint layout: freeze/thaw on mass ops

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In measure and allocate we are potentially
changing quite a few constraints. Don't
optimize at every step.
This commit is contained in:
Matthias Clasen 2019-06-29 05:06:56 +00:00 committed by Emmanuele Bassi
parent 511e2b435e
commit f62fc4e2f2
1 changed files with 6 additions and 0 deletions
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6
gtk/gtkconstraintlayout.c
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@ -710,6 +710,7 @@ gtk_constraint_layout_measure (GtkLayoutManager *manager,
return;
size_constraints = g_ptr_array_new ();
gtk_constraint_solver_freeze (solver);
/* We measure each child in the layout and impose restrictions on the
* minimum and natural size, so we can solve the size of the overall
@ -763,6 +764,8 @@ gtk_constraint_layout_measure (GtkLayoutManager *manager,
g_ptr_array_add (size_constraints, constraint);
}
gtk_constraint_solver_thaw (solver);
switch (orientation)
{
case GTK_ORIENTATION_HORIZONTAL:
@ -879,6 +882,7 @@ gtk_constraint_layout_allocate (GtkLayoutManager *manager,
gtk_constraint_variable_get_value (layout_height)));
size_constraints = g_ptr_array_new ();
gtk_constraint_solver_freeze (solver);
/* We reset the constraints on the size of each child, so we are sure the
* layout is up to date
@ -931,6 +935,8 @@ gtk_constraint_layout_allocate (GtkLayoutManager *manager,
g_ptr_array_add (size_constraints, constraint);
}
gtk_constraint_solver_thaw (solver);
for (child = _gtk_widget_get_first_child (widget);
child != NULL;
child = _gtk_widget_get_next_sibling (child))