mirror of https://github.com/SnapKit/SnapKit
Cleaned up some APIs and added support for prepare constraints.
This commit is contained in:
Robert Payne
parent
4158cf0d99
commit
b7eb62fba0
|
|
@ -31,19 +31,24 @@ import AppKit
|
|||
* Constraint is a single item that defines all the properties for a single ConstraintMaker chain
|
||||
*/
|
||||
public class Constraint {
|
||||
public var left: Constraint { return addConstraint(ConstraintAttributes.Left) }
|
||||
public var top: Constraint { return addConstraint(ConstraintAttributes.Top) }
|
||||
public var right: Constraint { return addConstraint(ConstraintAttributes.Right) }
|
||||
public var bottom: Constraint { return addConstraint(ConstraintAttributes.Bottom) }
|
||||
public var leading: Constraint { return addConstraint(ConstraintAttributes.Leading) }
|
||||
public var trailing: Constraint { return addConstraint(ConstraintAttributes.Trailing) }
|
||||
public var width: Constraint { return addConstraint(ConstraintAttributes.Width) }
|
||||
public var height: Constraint { return addConstraint(ConstraintAttributes.Height) }
|
||||
public var centerX: Constraint { return addConstraint(ConstraintAttributes.CenterX) }
|
||||
public var centerY: Constraint { return addConstraint(ConstraintAttributes.CenterY) }
|
||||
public var baseline: Constraint { return addConstraint(ConstraintAttributes.Baseline) }
|
||||
public var left: Constraint { return self.addConstraint(ConstraintAttributes.Left) }
|
||||
public var top: Constraint { return self.addConstraint(ConstraintAttributes.Top) }
|
||||
public var right: Constraint { return self.addConstraint(ConstraintAttributes.Right) }
|
||||
public var bottom: Constraint { return self.addConstraint(ConstraintAttributes.Bottom) }
|
||||
public var leading: Constraint { return self.addConstraint(ConstraintAttributes.Leading) }
|
||||
public var trailing: Constraint { return self.addConstraint(ConstraintAttributes.Trailing) }
|
||||
public var width: Constraint { return self.addConstraint(ConstraintAttributes.Width) }
|
||||
public var height: Constraint { return self.addConstraint(ConstraintAttributes.Height) }
|
||||
public var centerX: Constraint { return self.addConstraint(ConstraintAttributes.CenterX) }
|
||||
public var centerY: Constraint { return self.addConstraint(ConstraintAttributes.CenterY) }
|
||||
public var baseline: Constraint { return self.addConstraint(ConstraintAttributes.Baseline) }
|
||||
|
||||
public var and: Constraint { return self }
|
||||
public var and: Constraint {
|
||||
if self.relation != nil {
|
||||
fatalError("And is semantic only and can only be used before a relation is set.")
|
||||
}
|
||||
return self
|
||||
}
|
||||
public var with: Constraint { return self }
|
||||
|
||||
// MARK: initializer
|
||||
|
|
@ -56,115 +61,115 @@ public class Constraint {
|
|||
// MARK: equalTo
|
||||
|
||||
public func equalTo(other: ConstraintItem) -> Constraint {
|
||||
return constrainTo(other, relation: .Equal)
|
||||
return self.constrainTo(other, relation: .Equal)
|
||||
}
|
||||
public func equalTo(other: View) -> Constraint {
|
||||
return constrainTo(other, relation: .Equal)
|
||||
return self.constrainTo(other, relation: .Equal)
|
||||
}
|
||||
#if os(iOS)
|
||||
public func equalTo(other: UILayoutSupport) -> Constraint {
|
||||
return constrainTo(other, relation: .Equal)
|
||||
return self.constrainTo(other, relation: .Equal)
|
||||
}
|
||||
#endif
|
||||
public func equalTo(other: Float) -> Constraint {
|
||||
return constrainTo(other, relation: .Equal)
|
||||
return self.constrainTo(other, relation: .Equal)
|
||||
}
|
||||
public func equalTo(other: Double) -> Constraint {
|
||||
return constrainTo(Float(other), relation: .Equal)
|
||||
return self.constrainTo(Float(other), relation: .Equal)
|
||||
}
|
||||
public func equalTo(other: CGFloat) -> Constraint {
|
||||
return constrainTo(Float(other), relation: .Equal)
|
||||
return self.constrainTo(Float(other), relation: .Equal)
|
||||
}
|
||||
public func equalTo(other: Int) -> Constraint {
|
||||
return constrainTo(Float(other), relation: .Equal)
|
||||
return self.constrainTo(Float(other), relation: .Equal)
|
||||
}
|
||||
public func equalTo(other: UInt) -> Constraint {
|
||||
return constrainTo(Float(other), relation: .Equal)
|
||||
return self.constrainTo(Float(other), relation: .Equal)
|
||||
}
|
||||
public func equalTo(other: CGSize) -> Constraint {
|
||||
return constrainTo(other, relation: .Equal)
|
||||
return self.constrainTo(other, relation: .Equal)
|
||||
}
|
||||
public func equalTo(other: CGPoint) -> Constraint {
|
||||
return constrainTo(other, relation: .Equal)
|
||||
return self.constrainTo(other, relation: .Equal)
|
||||
}
|
||||
public func equalTo(other: EdgeInsets) -> Constraint {
|
||||
return constrainTo(other, relation: .Equal)
|
||||
return self.constrainTo(other, relation: .Equal)
|
||||
}
|
||||
|
||||
// MARK: lessThanOrEqualTo
|
||||
|
||||
public func lessThanOrEqualTo(other: ConstraintItem) -> Constraint {
|
||||
return constrainTo(other, relation: .LessThanOrEqualTo)
|
||||
return self.constrainTo(other, relation: .LessThanOrEqualTo)
|
||||
}
|
||||
public func lessThanOrEqualTo(other: View) -> Constraint {
|
||||
return constrainTo(other, relation: .LessThanOrEqualTo)
|
||||
return self.constrainTo(other, relation: .LessThanOrEqualTo)
|
||||
}
|
||||
#if os(iOS)
|
||||
public func lessThanOrEqualTo(other: UILayoutSupport) -> Constraint {
|
||||
return constrainTo(other, relation: .LessThanOrEqualTo)
|
||||
return self.constrainTo(other, relation: .LessThanOrEqualTo)
|
||||
}
|
||||
#endif
|
||||
public func lessThanOrEqualTo(other: Float) -> Constraint {
|
||||
return constrainTo(other, relation: .LessThanOrEqualTo)
|
||||
return self.constrainTo(other, relation: .LessThanOrEqualTo)
|
||||
}
|
||||
public func lessThanOrEqualTo(other: Double) -> Constraint {
|
||||
return constrainTo(Float(other), relation: .LessThanOrEqualTo)
|
||||
return self.constrainTo(Float(other), relation: .LessThanOrEqualTo)
|
||||
}
|
||||
public func lessThanOrEqualTo(other: CGFloat) -> Constraint {
|
||||
return constrainTo(Float(other), relation: .LessThanOrEqualTo)
|
||||
return self.constrainTo(Float(other), relation: .LessThanOrEqualTo)
|
||||
}
|
||||
public func lessThanOrEqualTo(other: Int) -> Constraint {
|
||||
return constrainTo(Float(other), relation: .LessThanOrEqualTo)
|
||||
return self.constrainTo(Float(other), relation: .LessThanOrEqualTo)
|
||||
}
|
||||
public func lessThanOrEqualTo(other: UInt) -> Constraint {
|
||||
return constrainTo(Float(other), relation: .LessThanOrEqualTo)
|
||||
return self.constrainTo(Float(other), relation: .LessThanOrEqualTo)
|
||||
}
|
||||
public func lessThanOrEqualTo(other: CGSize) -> Constraint {
|
||||
return constrainTo(other, relation: .LessThanOrEqualTo)
|
||||
return self.constrainTo(other, relation: .LessThanOrEqualTo)
|
||||
}
|
||||
public func lessThanOrEqualTo(other: CGPoint) -> Constraint {
|
||||
return constrainTo(other, relation: .LessThanOrEqualTo)
|
||||
return self.constrainTo(other, relation: .LessThanOrEqualTo)
|
||||
}
|
||||
public func lessThanOrEqualTo(other: EdgeInsets) -> Constraint {
|
||||
return constrainTo(other, relation: .LessThanOrEqualTo)
|
||||
return self.constrainTo(other, relation: .LessThanOrEqualTo)
|
||||
}
|
||||
|
||||
// MARK: greaterThanOrEqualTo
|
||||
|
||||
public func greaterThanOrEqualTo(other: ConstraintItem) -> Constraint {
|
||||
return constrainTo(other, relation: .GreaterThanOrEqualTo)
|
||||
return self.constrainTo(other, relation: .GreaterThanOrEqualTo)
|
||||
}
|
||||
public func greaterThanOrEqualTo(other: View) -> Constraint {
|
||||
return constrainTo(other, relation: .GreaterThanOrEqualTo)
|
||||
return self.constrainTo(other, relation: .GreaterThanOrEqualTo)
|
||||
}
|
||||
#if os(iOS)
|
||||
public func greaterThanOrEqualTo(other: UILayoutSupport) -> Constraint {
|
||||
return constrainTo(other, relation: .GreaterThanOrEqualTo)
|
||||
return self.constrainTo(other, relation: .GreaterThanOrEqualTo)
|
||||
}
|
||||
#endif
|
||||
public func greaterThanOrEqualTo(other: Float) -> Constraint {
|
||||
return constrainTo(other, relation: .GreaterThanOrEqualTo)
|
||||
return self.constrainTo(other, relation: .GreaterThanOrEqualTo)
|
||||
}
|
||||
public func greaterThanOrEqualTo(other: Double) -> Constraint {
|
||||
return constrainTo(Float(other), relation: .GreaterThanOrEqualTo)
|
||||
return self.constrainTo(Float(other), relation: .GreaterThanOrEqualTo)
|
||||
}
|
||||
public func greaterThanOrEqualTo(other: CGFloat) -> Constraint {
|
||||
return constrainTo(Float(other), relation: .GreaterThanOrEqualTo)
|
||||
return self.constrainTo(Float(other), relation: .GreaterThanOrEqualTo)
|
||||
}
|
||||
public func greaterThanOrEqualTo(other: Int) -> Constraint {
|
||||
return constrainTo(Float(other), relation: .GreaterThanOrEqualTo)
|
||||
return self.constrainTo(Float(other), relation: .GreaterThanOrEqualTo)
|
||||
}
|
||||
public func greaterThanOrEqualTo(other: UInt) -> Constraint {
|
||||
return constrainTo(Float(other), relation: .GreaterThanOrEqualTo)
|
||||
return self.constrainTo(Float(other), relation: .GreaterThanOrEqualTo)
|
||||
}
|
||||
public func greaterThanOrEqualTo(other: CGSize) -> Constraint {
|
||||
return constrainTo(other, relation: .GreaterThanOrEqualTo)
|
||||
return self.constrainTo(other, relation: .GreaterThanOrEqualTo)
|
||||
}
|
||||
public func greaterThanOrEqualTo(other: CGPoint) -> Constraint {
|
||||
return constrainTo(other, relation: .GreaterThanOrEqualTo)
|
||||
return self.constrainTo(other, relation: .GreaterThanOrEqualTo)
|
||||
}
|
||||
public func greaterThanOrEqualTo(other: EdgeInsets) -> Constraint {
|
||||
return constrainTo(other, relation: .GreaterThanOrEqualTo)
|
||||
return self.constrainTo(other, relation: .GreaterThanOrEqualTo)
|
||||
}
|
||||
|
||||
// MARK: multiplier
|
||||
|
|
@ -308,7 +313,7 @@ public class Constraint {
|
|||
}
|
||||
}
|
||||
|
||||
var layoutConstraints: Array<LayoutConstraint> = []
|
||||
var newLayoutConstraints = Array<LayoutConstraint>()
|
||||
let layoutFromAttributes = self.fromItem.attributes.layoutAttributes
|
||||
let layoutToAttributes = self.toItem.attributes.layoutAttributes
|
||||
|
||||
|
|
@ -348,7 +353,7 @@ public class Constraint {
|
|||
// set constraint
|
||||
layoutConstraint.constraint = self
|
||||
|
||||
layoutConstraints.append(layoutConstraint)
|
||||
newLayoutConstraints.append(layoutConstraint)
|
||||
}
|
||||
|
||||
// special logic for updating
|
||||
|
|
@ -356,11 +361,11 @@ public class Constraint {
|
|||
// get existing constraints for this view
|
||||
let existingLayoutConstraints = reverse(layoutFrom!.snp_installedLayoutConstraints)
|
||||
|
||||
// array that will contain only new layout constraints
|
||||
var newLayoutConstraints = Array<LayoutConstraint>()
|
||||
// array that will contain only new layout constraints to keep
|
||||
var newLayoutConstraintsToKeep = Array<LayoutConstraint>()
|
||||
|
||||
// begin looping
|
||||
for layoutConstraint in layoutConstraints {
|
||||
for layoutConstraint in newLayoutConstraints {
|
||||
// layout constraint that should be updated
|
||||
var updateLayoutConstraint: LayoutConstraint? = nil
|
||||
|
||||
|
|
@ -376,26 +381,35 @@ public class Constraint {
|
|||
if updateLayoutConstraint != nil {
|
||||
updateLayoutConstraint!.constant = layoutConstraint.constant
|
||||
}
|
||||
// otherwise add this layout constraint to new list
|
||||
// otherwise add this layout constraint to new keep list
|
||||
else {
|
||||
newLayoutConstraints.append(layoutConstraint)
|
||||
newLayoutConstraintsToKeep.append(layoutConstraint)
|
||||
}
|
||||
}
|
||||
|
||||
// set constraints to only new ones
|
||||
layoutConstraints = newLayoutConstraints
|
||||
newLayoutConstraints = newLayoutConstraintsToKeep
|
||||
}
|
||||
|
||||
// add constraints
|
||||
installOnView!.addConstraints(layoutConstraints)
|
||||
installOnView!.addConstraints(newLayoutConstraints)
|
||||
|
||||
// store which view this constraint was installed on
|
||||
self.installedOnView = installOnView
|
||||
|
||||
// store which layout constraints are installed for this constraint
|
||||
self.installedLayoutConstraints = NSHashTable.weakObjectsHashTable()
|
||||
for layoutConstraint in layoutConstraints {
|
||||
for layoutConstraint in newLayoutConstraints {
|
||||
self.installedLayoutConstraints!.addObject(layoutConstraint)
|
||||
}
|
||||
|
||||
return layoutConstraints
|
||||
// store the layout constraints against the installed on view
|
||||
var layoutConstraints = Array<LayoutConstraint>(layoutFrom!.snp_installedLayoutConstraints)
|
||||
layoutConstraints += newLayoutConstraints
|
||||
layoutFrom!.snp_installedLayoutConstraints = layoutConstraints
|
||||
|
||||
// return the new constraints
|
||||
return newLayoutConstraints
|
||||
}
|
||||
|
||||
internal func uninstallFromView() {
|
||||
|
|
|
|||
|
|
@ -31,21 +31,21 @@ import AppKit
|
|||
* ConstraintMaker is the maker in snap that gets all constraints kickstarted
|
||||
*/
|
||||
public class ConstraintMaker {
|
||||
public var left: Constraint { return addConstraint(ConstraintAttributes.Left) }
|
||||
public var top: Constraint { return addConstraint(ConstraintAttributes.Top) }
|
||||
public var right: Constraint { return addConstraint(ConstraintAttributes.Right) }
|
||||
public var bottom: Constraint { return addConstraint(ConstraintAttributes.Bottom) }
|
||||
public var leading: Constraint { return addConstraint(ConstraintAttributes.Leading) }
|
||||
public var trailing: Constraint { return addConstraint(ConstraintAttributes.Trailing) }
|
||||
public var width: Constraint { return addConstraint(ConstraintAttributes.Width) }
|
||||
public var height: Constraint { return addConstraint(ConstraintAttributes.Height) }
|
||||
public var centerX: Constraint { return addConstraint(ConstraintAttributes.CenterX) }
|
||||
public var centerY: Constraint { return addConstraint(ConstraintAttributes.CenterY) }
|
||||
public var baseline: Constraint { return addConstraint(ConstraintAttributes.Baseline) }
|
||||
public var left: Constraint { return self.addConstraint(ConstraintAttributes.Left) }
|
||||
public var top: Constraint { return self.addConstraint(ConstraintAttributes.Top) }
|
||||
public var right: Constraint { return self.addConstraint(ConstraintAttributes.Right) }
|
||||
public var bottom: Constraint { return self.addConstraint(ConstraintAttributes.Bottom) }
|
||||
public var leading: Constraint { return self.addConstraint(ConstraintAttributes.Leading) }
|
||||
public var trailing: Constraint { return self.addConstraint(ConstraintAttributes.Trailing) }
|
||||
public var width: Constraint { return self.addConstraint(ConstraintAttributes.Width) }
|
||||
public var height: Constraint { return self.addConstraint(ConstraintAttributes.Height) }
|
||||
public var centerX: Constraint { return self.addConstraint(ConstraintAttributes.CenterX) }
|
||||
public var centerY: Constraint { return self.addConstraint(ConstraintAttributes.CenterY) }
|
||||
public var baseline: Constraint { return self.addConstraint(ConstraintAttributes.Baseline) }
|
||||
|
||||
public var edges: Constraint { return addConstraint(ConstraintAttributes.Edges) }
|
||||
public var size: Constraint { return addConstraint(ConstraintAttributes.Size) }
|
||||
public var center: Constraint { return addConstraint(ConstraintAttributes.Center) }
|
||||
public var edges: Constraint { return self.addConstraint(ConstraintAttributes.Edges) }
|
||||
public var size: Constraint { return self.addConstraint(ConstraintAttributes.Size) }
|
||||
public var center: Constraint { return self.addConstraint(ConstraintAttributes.Center) }
|
||||
|
||||
init(view: View) {
|
||||
self.view = view
|
||||
|
|
@ -61,6 +61,12 @@ public class ConstraintMaker {
|
|||
return constraint
|
||||
}
|
||||
|
||||
internal class func prepareConstraints(view: View, block: (make: ConstraintMaker) -> Void) -> Array<Constraint> {
|
||||
let maker = ConstraintMaker(view: view)
|
||||
block(make: maker)
|
||||
return maker.constraints
|
||||
}
|
||||
|
||||
internal class func makeConstraints(view: View, block: (make: ConstraintMaker) -> Void) {
|
||||
#if os(iOS)
|
||||
view.setTranslatesAutoresizingMaskIntoConstraints(false)
|
||||
|
|
@ -69,13 +75,9 @@ public class ConstraintMaker {
|
|||
#endif
|
||||
let maker = ConstraintMaker(view: view)
|
||||
block(make: maker)
|
||||
|
||||
var layoutConstraints = Array<LayoutConstraint>(view.snp_installedLayoutConstraints)
|
||||
for constraint in maker.constraints {
|
||||
layoutConstraints += constraint.install()
|
||||
constraint.installOnView(updateExisting: false)
|
||||
}
|
||||
|
||||
view.snp_installedLayoutConstraints = layoutConstraints
|
||||
}
|
||||
|
||||
internal class func remakeConstraints(view: View, block: (make: ConstraintMaker) -> Void) {
|
||||
|
|
@ -89,15 +91,12 @@ public class ConstraintMaker {
|
|||
|
||||
var layoutConstraints = Array<LayoutConstraint>(view.snp_installedLayoutConstraints)
|
||||
for existingLayoutConstraint in layoutConstraints {
|
||||
existingLayoutConstraint.constraint?.uninstall()
|
||||
existingLayoutConstraint.constraint?.uninstallFromView()
|
||||
}
|
||||
layoutConstraints = []
|
||||
|
||||
for constraint in maker.constraints {
|
||||
layoutConstraints += constraint.install()
|
||||
constraint.installOnView(updateExisting: false)
|
||||
}
|
||||
|
||||
view.snp_installedLayoutConstraints = layoutConstraints
|
||||
}
|
||||
|
||||
internal class func updateConstraints(view: View, block: (make: ConstraintMaker) -> Void) {
|
||||
|
|
@ -109,20 +108,15 @@ public class ConstraintMaker {
|
|||
let maker = ConstraintMaker(view: view)
|
||||
block(make: maker)
|
||||
|
||||
var layoutConstraints = Array<LayoutConstraint>(view.snp_installedLayoutConstraints)
|
||||
for constraint in maker.constraints {
|
||||
layoutConstraints += constraint.installOnView(updateExisting: true)
|
||||
constraint.installOnView(updateExisting: true)
|
||||
}
|
||||
|
||||
view.snp_installedLayoutConstraints = layoutConstraints
|
||||
}
|
||||
|
||||
internal class func removeConstraints(view: View) {
|
||||
let eixsitingLayoutConstraints = Array<LayoutConstraint>(view.snp_installedLayoutConstraints)
|
||||
for existingLayoutConstraint in eixsitingLayoutConstraints {
|
||||
existingLayoutConstraint.constraint?.uninstall()
|
||||
}
|
||||
|
||||
view.snp_installedLayoutConstraints = []
|
||||
let existingLayoutConstraints = Array<LayoutConstraint>(view.snp_installedLayoutConstraints)
|
||||
for existingLayoutConstraint in existingLayoutConstraints {
|
||||
existingLayoutConstraint.constraint?.uninstallFromView()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -68,6 +68,10 @@ public extension View {
|
|||
public var snp_centerWithinMargins: ConstraintItem { return ConstraintItem(object: self, attributes: ConstraintAttributes.CenterWithinMargins) }
|
||||
#endif
|
||||
|
||||
public func snp_prepareConstraints(block: (make: ConstraintMaker) -> Void) -> Array<Constraint> {
|
||||
return ConstraintMaker.prepareConstraints(self, block: block)
|
||||
}
|
||||
|
||||
public func snp_makeConstraints(block: (make: ConstraintMaker) -> Void) {
|
||||
ConstraintMaker.makeConstraints(self, block: block)
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue