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constraint layout: Dont reset constraints in allocate

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If trust our allocation algorithm, this can never
trigger (and in fact, it never does).
This commit is contained in:
Matthias Clasen 2019-06-29 17:36:47 +00:00 committed by Emmanuele Bassi
parent e3c4fb67ca
commit 9edf6fb6cb
1 changed files with 0 additions and 67 deletions
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67
gtk/gtkconstraintlayout.c
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@ -842,7 +842,6 @@ gtk_constraint_layout_allocate (GtkLayoutManager *manager,
GtkConstraintSolver *solver;
GtkConstraintVariable *layout_top, *layout_height;
GtkConstraintVariable *layout_left, *layout_width;
GPtrArray *size_constraints;
GtkWidget *child;
solver = gtk_constraint_layout_get_solver (self);
@ -881,62 +880,6 @@ gtk_constraint_layout_allocate (GtkLayoutManager *manager,
gtk_constraint_variable_get_value (layout_width),
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
*/
for (child = _gtk_widget_get_first_child (widget);
child != NULL;
child = _gtk_widget_get_next_sibling (child))
{
GtkConstraintVariable *width_var, *height_var;
GtkRequisition min_req, nat_req;
GtkConstraintRef *constraint;
if (!gtk_widget_should_layout (child))
continue;
gtk_widget_get_preferred_size (child, &min_req, &nat_req);
width_var = get_child_attribute (self, child, GTK_CONSTRAINT_ATTRIBUTE_WIDTH);
constraint =
gtk_constraint_solver_add_constraint (solver,
width_var,
GTK_CONSTRAINT_RELATION_GE,
gtk_constraint_expression_new (min_req.width),
GTK_CONSTRAINT_WEIGHT_REQUIRED);
g_ptr_array_add (size_constraints, constraint);
gtk_constraint_variable_set_value (width_var, nat_req.width);
constraint =
gtk_constraint_solver_add_stay_variable (solver,
width_var,
GTK_CONSTRAINT_WEIGHT_MEDIUM);
g_ptr_array_add (size_constraints, constraint);
height_var = get_child_attribute (self, child, GTK_CONSTRAINT_ATTRIBUTE_HEIGHT);
constraint =
gtk_constraint_solver_add_constraint (solver,
height_var,
GTK_CONSTRAINT_RELATION_GE,
gtk_constraint_expression_new (min_req.height),
GTK_CONSTRAINT_WEIGHT_REQUIRED);
g_ptr_array_add (size_constraints, constraint);
gtk_constraint_variable_set_value (height_var, nat_req.height);
constraint =
gtk_constraint_solver_add_stay_variable (solver,
height_var,
GTK_CONSTRAINT_WEIGHT_MEDIUM);
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))
@ -1002,16 +945,6 @@ gtk_constraint_layout_allocate (GtkLayoutManager *manager,
}
#endif
/* The constraints on the children sizes can be removed now */
for (guint i = 0; i < size_constraints->len; i++)
{
GtkConstraintRef *ref = g_ptr_array_index (size_constraints, i);
gtk_constraint_solver_remove_constraint (solver, ref);
}
g_ptr_array_unref (size_constraints);
/* The allocation stay constraints are not needed any more */
gtk_constraint_solver_remove_constraint (solver, stay_w);
gtk_constraint_solver_remove_constraint (solver, stay_h);