Struct gtk4::ConstraintGuide[][src]

pub struct ConstraintGuide(_);
Expand description

A ConstraintGuide is an invisible layout element in a ConstraintLayout.

The ConstraintLayout treats guides like widgets. They can be used as the source or target of a Constraint.

Guides have a minimum, maximum and natural size. Depending on the constraints that are applied, they can act like a guideline that widgets can be aligned to, or like flexible space.

Unlike a Widget, a ConstraintGuide will not be drawn.

Implements

glib::ObjectExt, ConstraintTargetExt

Implementations

Creates a new ConstraintGuide object.

Returns

a new ConstraintGuide object.

Creates a new builder-pattern struct instance to construct ConstraintGuide objects.

This method returns an instance of ConstraintGuideBuilder which can be used to create ConstraintGuide objects.

Retrieves the name set using set_name().

Returns

the name of the guide

Retrieves the strength set using set_strength().

Returns

the strength of the constraint on the natural size

Sets the maximum size of self.

If self is attached to a ConstraintLayout, the constraints will be updated to reflect the new size.

width

the new maximum width, or -1 to not change it

height

the new maximum height, or -1 to not change it

Sets the minimum size of self.

If self is attached to a ConstraintLayout, the constraints will be updated to reflect the new size.

width

the new minimum width, or -1 to not change it

height

the new minimum height, or -1 to not change it

Sets a name for the given ConstraintGuide.

The name is useful for debugging purposes.

name

a name for the self

Sets the natural size of self.

If self is attached to a ConstraintLayout, the constraints will be updated to reflect the new size.

width

the new natural width, or -1 to not change it

height

the new natural height, or -1 to not change it

Sets the strength of the constraint on the natural size of the given ConstraintGuide.

strength

the strength of the constraint

The maximum height of the guide.

The maximum height of the guide.

The maximum width of the guide.

The maximum width of the guide.

The minimum height of the guide.

The minimum height of the guide.

The minimum width of the guide.

The minimum width of the guide.

The preferred, or natural, height of the guide.

The preferred, or natural, height of the guide.

The preferred, or natural, width of the guide.

The preferred, or natural, width of the guide.

Gets the maximum size of self.

width

return location for the maximum width, or None

height

return location for the maximum height, or None

Gets the minimum size of self.

width

return location for the minimum width, or None

height

return location for the minimum height, or None

Gets the natural size of self.

width

return location for the natural width, or None

height

return location for the natural height, or None

Trait Implementations

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Compares and returns the minimum of two values. Read more

Restrict a value to a certain interval. Read more

This method tests for self and other values to be equal, and is used by ==. Read more

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This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

Returns the type identifier of Self.

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