Method

GtkConstraintLayoutadd_constraints_from_description

Declaration [src] 

GList*
gtk_constraint_layout_add_constraints_from_description (
  GtkConstraintLayout* layout,
  const char* const* lines,
  gsize n_lines,
  int hspacing,
  int vspacing,
  GError** error,
  const char* first_view,
  ...
)

Description [src]

Creates a list of constraints from a VFL description.

This function is a convenience wrapper around gtk_constraint_layout_add_constraints_from_descriptionv(), using variadic arguments to populate the view/target map.

This method is not directly available to language bindings.

The implementation of this method is provided by gtk_constraint_layout_add_constraints_from_descriptionv() in language bindings.

Parameters

lines

Type: An array of char*

An array of Visual Format Language lines defining a set of constraints.

The length of the array is specified in the n_lines argument.
The data is owned by the caller of the method.
Each element is a NUL terminated UTF-8 string.
n_lines

Type: gsize

The number of lines.

hspacing

Type: int

Default horizontal spacing value, or -1 for the fallback value.

vspacing

Type: int

Default vertical spacing value, or -1 for the fallback value.

error

Type: GError

Return location for a GError.

The data is owned by the caller of the method.
first_view

Type: const char*

The name of a view in the VFL description, followed by the GtkConstraintTarget to which it maps.

The data is owned by the caller of the method.
The value is a NUL terminated UTF-8 string.
...

Type: 

A NULL-terminated list of view names and GtkConstraintTargets.

Return value

Type: A list of GtkConstraint*

The list of GtkConstraints that were added to the layout.

The caller of the method takes ownership of the returned data container, but not the data inside it.