Struct gtk4::AspectFrame[][src]

pub struct AspectFrame(_);
Expand description

AspectFrame preserves the aspect ratio of its child.

The frame can respect the aspect ratio of the child widget, or use its own aspect ratio.

CSS nodes

AspectFrame uses a CSS node with name frame.

Implements

WidgetExt, glib::ObjectExt, AccessibleExt, BuildableExt, ConstraintTargetExt, WidgetExtManual, AccessibleExtManual

Implementations

Create a new AspectFrame.

xalign

Horizontal alignment of the child within the parent. Ranges from 0.0 (left aligned) to 1.0 (right aligned)

yalign

Vertical alignment of the child within the parent. Ranges from 0.0 (top aligned) to 1.0 (bottom aligned)

ratio

The desired aspect ratio.

obey_child

If true, ratio is ignored, and the aspect ratio is taken from the requistion of the child.

Returns

the new AspectFrame.

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

This method returns an instance of AspectFrameBuilder which can be used to create AspectFrame objects.

Gets the child widget of self.

Returns

the child widget of self@

Returns whether the child’s size request should override the set aspect ratio of the AspectFrame.

Returns

whether to obey the child’s size request

Returns the desired aspect ratio of the child.

Returns

the desired aspect ratio

Returns the horizontal alignment of the child within the allocation of the AspectFrame.

Returns

the horizontal alignment

Returns the vertical alignment of the child within the allocation of the AspectFrame.

Returns

the vertical alignment

Sets the child widget of self.

child

the child widget

Sets whether the aspect ratio of the child’s size request should override the set aspect ratio of the AspectFrame.

obey_child

If true, ratio is ignored, and the aspect ratio is taken from the requistion of the child.

Sets the desired aspect ratio of the child.

ratio

aspect ratio of the child

Sets the horizontal alignment of the child within the allocation of the AspectFrame.

xalign

horizontal alignment, from 0.0 (left aligned) to 1.0 (right aligned)

Sets the vertical alignment of the child within the allocation of the AspectFrame.

yalign

horizontal alignment, from 0.0 (top aligned) to 1.0 (bottom aligned)

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Formats the value using the given formatter. Read more

Feeds this value into the given Hasher. Read more

Feeds a slice of this type into the given Hasher. Read more

This method returns an Ordering between self and other. Read more

Compares and returns the maximum of two values. Read more

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

This method tests for !=.

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This method tests less than (for self and other) and is used by the < operator. Read more

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

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

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.

Auto Trait Implementations

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Tries to cast to an object of type T. This handles upcasting, downcasting and casting between interface and interface implementors. All checks are performed at runtime, while downcast and upcast will do many checks at compile-time already. Read more

Tries to cast to reference to an object of type T. This handles upcasting, downcasting and casting between interface and interface implementors. All checks are performed at runtime, while downcast and upcast will do many checks at compile-time already. Read more

Casts to T unconditionally. Read more

Casts to &T unconditionally. Read more

Performs the conversion.

Performs the conversion.

Returns true if the object is an instance of (can be cast to) T.

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Same as connect but takes a SignalId instead of a signal name.

Same as connect_local but takes a SignalId instead of a signal name.

Same as connect_unsafe but takes a SignalId instead of a signal name.

Emit signal by signal id.

Same as emit but takes Value for the arguments.

Emit signal by its name.

Same as emit_by_name but takes Value for the arguments.

Emit signal with details by signal id.

Same as emit_with_details but takes Value for the arguments.

The resulting type after obtaining ownership.

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🔬 This is a nightly-only experimental API. (toowned_clone_into)

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The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.