138 lines
4.7 KiB
Swift
138 lines
4.7 KiB
Swift
//
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// AspectFrame.swift
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// Adwaita
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//
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// Created by auto-generation on 30.12.25.
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//
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import CAdw
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import LevenshteinTransformations
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/// Preserves the aspect ratio of its child.
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///
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/// The frame can respect the aspect ratio of the child widget,
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/// or use its own aspect ratio.
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///
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///
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public struct AspectFrame: AdwaitaWidget {
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/// Additional update functions for type extensions.
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var updateFunctions: [(ViewStorage, WidgetData, Bool) -> Void] = []
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/// Additional appear functions for type extensions.
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var appearFunctions: [(ViewStorage, WidgetData) -> Void] = []
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/// The accessible role of the given `GtkAccessible` implementation.
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///
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/// The accessible role cannot be changed once set.
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var accessibleRole: String?
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/// The child widget.
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var child: Body?
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/// Whether the `GtkAspectFrame` should use the aspect ratio of its child.
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var obeyChild: Bool?
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/// The aspect ratio to be used by the `GtkAspectFrame`.
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///
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/// This property is only used if
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/// ``obeyChild(_:)`` is set to `false`.
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var ratio: Float
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/// The horizontal alignment of the child.
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var xalign: Float?
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/// The vertical alignment of the child.
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var yalign: Float?
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/// Initialize `AspectFrame`.
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public init(ratio: Float) {
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self.ratio = ratio
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}
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/// The view storage.
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/// - Parameters:
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/// - modifiers: Modify views before being updated.
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/// - type: The view render data type.
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/// - Returns: The view storage.
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public func container<Data>(data: WidgetData, type: Data.Type) -> ViewStorage where Data: ViewRenderData {
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let storage = ViewStorage(gtk_aspect_frame_new(0.5, 0.5, ratio, 0)?.opaque())
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for function in appearFunctions {
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function(storage, data)
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}
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update(storage, data: data, updateProperties: true, type: type)
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if let childStorage = child?.storage(data: data, type: type) {
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storage.content["child"] = [childStorage]
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gtk_aspect_frame_set_child(storage.opaquePointer, childStorage.opaquePointer?.cast())
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}
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return storage
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}
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/// Update the stored content.
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/// - Parameters:
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/// - storage: The storage to update.
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/// - modifiers: Modify views before being updated
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/// - updateProperties: Whether to update the view's properties.
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/// - type: The view render data type.
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public func update<Data>(_ storage: ViewStorage, data: WidgetData, updateProperties: Bool, type: Data.Type) where Data: ViewRenderData {
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storage.modify { widget in
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if let widget = storage.content["child"]?.first {
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child?.updateStorage(widget, data: data, updateProperties: updateProperties, type: type)
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}
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if let obeyChild, updateProperties, (storage.previousState as? Self)?.obeyChild != obeyChild {
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gtk_aspect_frame_set_obey_child(widget, obeyChild.cBool)
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}
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if updateProperties, (storage.previousState as? Self)?.ratio != ratio {
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gtk_aspect_frame_set_ratio(widget, ratio)
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}
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if let xalign, updateProperties, (storage.previousState as? Self)?.xalign != xalign {
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gtk_aspect_frame_set_xalign(widget, xalign)
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}
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if let yalign, updateProperties, (storage.previousState as? Self)?.yalign != yalign {
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gtk_aspect_frame_set_yalign(widget, yalign)
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}
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}
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for function in updateFunctions {
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function(storage, data, updateProperties)
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}
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if updateProperties {
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storage.previousState = self
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}
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}
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/// The accessible role of the given `GtkAccessible` implementation.
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///
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/// The accessible role cannot be changed once set.
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public func accessibleRole(_ accessibleRole: String?) -> Self {
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modify { $0.accessibleRole = accessibleRole }
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}
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/// The child widget.
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public func child(@ViewBuilder _ child: () -> Body) -> Self {
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modify { $0.child = child() }
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}
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/// Whether the `GtkAspectFrame` should use the aspect ratio of its child.
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public func obeyChild(_ obeyChild: Bool? = true) -> Self {
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modify { $0.obeyChild = obeyChild }
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}
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/// The aspect ratio to be used by the `GtkAspectFrame`.
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///
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/// This property is only used if
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/// ``obeyChild(_:)`` is set to `false`.
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public func ratio(_ ratio: Float) -> Self {
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modify { $0.ratio = ratio }
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}
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/// The horizontal alignment of the child.
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public func xalign(_ xalign: Float?) -> Self {
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modify { $0.xalign = xalign }
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}
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/// The vertical alignment of the child.
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public func yalign(_ yalign: Float?) -> Self {
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modify { $0.yalign = yalign }
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}
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}
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