class MotionKit::ConstraintsHelpers
Public Instance Methods
above(view)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 228 def above(view) unless view raise ArgumentError.new("`#{view.inspect}` is not a valid target for making a `above` constraint.") end constraint = Constraint.new(constraint_target.view, :bottom, :equal) constraint.equals(view, :top) constraint_target.add_constraints([constraint]) return constraint end
after(view)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 262 def after(view) unless view raise ArgumentError.new("`#{view.inspect}` is not a valid target for making a `after` constraint.") end constraint = Constraint.new(constraint_target.view, :left, :equal) constraint.equals(view, :right) constraint_target.add_constraints([constraint]) return constraint end
Also aliased as: right_of
baseline(value=nil, rel=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 115 def baseline(value=nil, rel=nil) target_constraint(:baseline, rel, value) end
before(view)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 250 def before(view) unless view raise ArgumentError.new("`#{view.inspect}` is not a valid target for making a `before` constraint.") end constraint = Constraint.new(constraint_target.view, :right, :equal) constraint.equals(view, :left) constraint_target.add_constraints([constraint]) return constraint end
Also aliased as: left_of
below(view)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 239 def below(view) unless view raise ArgumentError.new("`#{view.inspect}` is not a valid target for making a `below` constraint.") end constraint = Constraint.new(constraint_target.view, :top, :equal) constraint.equals(view, :bottom) constraint_target.add_constraints([constraint]) return constraint end
bottom(value=nil, rel=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 103 def bottom(value=nil, rel=nil) target_constraint(:bottom, rel, value) end
bottom_left(value=nil, rel=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 204 def bottom_left(value=nil, rel=nil) target_constraint([:left, :bottom], rel, value, PointConstraint) end
bottom_right(value=nil, rel=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 216 def bottom_right(value=nil, rel=nil) target_constraint([:right, :bottom], rel, value, PointConstraint) end
center(value=nil, rel=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 165 def center(value=nil, rel=nil) target_constraint([:center_x, :center_y], rel, value, PointConstraint) end
center_x(value=nil, rel=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 40 def center_x(value=nil, rel=nil) target_constraint(:center_x, rel, value) end
center_y(value=nil, rel=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 91 def center_y(value=nil, rel=nil) target_constraint(:center_y, rel, value) end
constraint_target()
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A more sensible name for the constraint that is created.
# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 9 def constraint_target target end
height(value=nil, rel=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 140 def height(value=nil, rel=nil) target_constraint(:height, :equal, value) end
Also aliased as: h
leading(value=nil, rel=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 28 def leading(value=nil, rel=nil) target_constraint(:leading, rel, value) end
left(value=nil, rel=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 13 def left(value=nil, rel=nil) target_constraint(:left, rel, value) end
Also aliased as: x
max_baseline(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 123 def max_baseline(value=nil) baseline(value, :lte) end
max_bottom(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 111 def max_bottom(value=nil) bottom(value, :lte) end
max_bottom_left(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 212 def max_bottom_left(value=nil) bottom_left(value, :lte) end
max_bottom_right(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 224 def max_bottom_right(value=nil) bottom_right(value, :lte) end
max_center(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 173 def max_center(value=nil) center(value, :lte) end
max_center_x(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 48 def max_center_x(value=nil) center_x(value, :lte) end
max_center_y(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 99 def max_center_y(value=nil) center_y(value, :lte) end
max_height(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 149 def max_height(value=nil) target_constraint(:height, :lte, value) end
max_leading(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 36 def max_leading(value=nil) leading(value, :lte) end
max_left(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 23 def max_left(value=nil) left(value, :lte) end
Also aliased as: max_x
max_right(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 60 def max_right(value=nil) right(value, :lte) end
max_size(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 161 def max_size(value=nil) size(value, :lte) end
max_top(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 86 def max_top(value=nil) top(value, :lte) end
Also aliased as: max_y
max_top_left(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 187 def max_top_left(value=nil) top_left(value, :lte) end
Also aliased as: max_origin
max_top_right(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 200 def max_top_right(value=nil) top_right(value, :lte) end
max_trailing(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 72 def max_trailing(value=nil) trailing(value, :lte) end
max_width(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 136 def max_width(value=nil) width(value, :lte) end
min_baseline(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 119 def min_baseline(value=nil) baseline(value, :gte) end
min_bottom(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 107 def min_bottom(value=nil) bottom(value, :gte) end
min_bottom_left(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 208 def min_bottom_left(value=nil) bottom_left(value, :gte) end
min_bottom_right(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 220 def min_bottom_right(value=nil) bottom_right(value, :gte) end
min_center(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 169 def min_center(value=nil) center(value, :gte) end
min_center_x(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 44 def min_center_x(value=nil) center_x(value, :gte) end
min_center_y(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 95 def min_center_y(value=nil) center_y(value, :gte) end
min_height(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 145 def min_height(value=nil) target_constraint(:height, :gte, value) end
min_leading(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 32 def min_leading(value=nil) leading(value, :gte) end
min_left(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 18 def min_left(value=nil) left(value, :gte) end
Also aliased as: min_x
min_right(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 56 def min_right(value=nil) right(value, :gte) end
min_size(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 157 def min_size(value=nil) size(value, :gte) end
min_top(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 81 def min_top(value=nil) top(value, :gte) end
Also aliased as: min_y
min_top_left(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 182 def min_top_left(value=nil) top_left(value, :gte) end
Also aliased as: min_origin
min_top_right(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 196 def min_top_right(value=nil) top_right(value, :gte) end
min_trailing(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 68 def min_trailing(value=nil) trailing(value, :gte) end
min_width(value=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 132 def min_width(value=nil) width(value, :gte) end
right(value=nil, rel=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 52 def right(value=nil, rel=nil) target_constraint(:right, rel, value) end
size(value=nil, rel=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 153 def size(value=nil, rel=nil) target_constraint(:size, rel, value, SizeConstraint) end
top(value=nil, rel=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 76 def top(value=nil, rel=nil) target_constraint(:top, rel, value) end
Also aliased as: y
top_left(value=nil, rel=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 177 def top_left(value=nil, rel=nil) target_constraint([:left, :top], rel, value, PointConstraint) end
Also aliased as: origin
top_right(value=nil, rel=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 192 def top_right(value=nil, rel=nil) target_constraint([:right, :top], rel, value, PointConstraint) end
trailing(value=nil, rel=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 64 def trailing(value=nil, rel=nil) target_constraint(:trailing, rel, value) end
width(value=nil, rel=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 127 def width(value=nil, rel=nil) target_constraint(:width, rel, value) end
Also aliased as: w
Private Instance Methods
target_constraint(attribute, relationship, value=nil, constraint_class=nil)
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# File lib/motion-kit-cocoa/constraints/constraints_helpers.rb, line 276 def target_constraint(attribute, relationship, value=nil, constraint_class=nil) constraint_class ||= Constraint constraint = constraint_class.new(constraint_target.view, attribute, relationship) if value == :scale size = ViewCalculator.intrinsic_size(constraint_target.view) if attribute == :width constraint.equals(:self, :height).times(size.width / size.height) elsif attribute == :height constraint.equals(:self, :width).times(size.height / size.width) else raise "Cannot apply :scale relationship to #{attribute}" end elsif value constraint.equals(value) end constraint_target.add_constraints([constraint]) constraint end