The Trunk: Balloon-ul.29.mcz

Levente Uzonyi uploaded a new version of Balloon to project The Trunk:
http://source.squeak.org/trunk/Balloon-ul.29.mcz

==================== Summary ====================

Name: Balloon-ul.29
Author: ul
Time: 13 March 2017, 3:46:23.134314 am
UUID: dd3147a6-e291-47c3-97a1-f7032958288f
Ancestors: Balloon-nice.28

SortedCollection Whack-a-mole

=============== Diff against Balloon-nice.28 ===============

Item was changed:
  ----- Method: GradientFillStyle>>computePixelRampOfSize: (in category 'private') -----
  computePixelRampOfSize: length
  "Compute the pixel ramp in the receiver"
  | bits lastValue ramp lastColor lastIndex lastWord |
+ ramp := colorRamp sorted:[:a1 :a2| a1 key < a2 key].
- ramp := colorRamp asSortedCollection:[:a1 :a2| a1 key < a2 key].
  bits := Bitmap new: length.
  lastColor := ramp first value.
  lastWord := lastColor pixelWordForDepth: 32.
  lastIndex := 0.
  ramp do:[:assoc| | nextIndex nextColor distance theta step nextWord |
  nextIndex := (assoc key * length) rounded.
  nextColor := assoc value.
  nextWord := nextColor pixelWordForDepth: 32.
  distance := (nextIndex - lastIndex).
  distance = 0 ifTrue:[distance := 1].
  step := 1.0 / distance asFloat.
  theta := 0.0.
  lastIndex+1 to: nextIndex do:[:i|
  theta := theta + step.
  "The following is an open-coded version of:
  color := nextColor alphaMixed: theta with: lastColor.
  bits at: i put: (color scaledPixelValue32).
  "
  bits at: i put: (self scaledAlphaMix: theta of: lastWord with: nextWord).
  ].
  lastIndex := nextIndex.
  lastColor := nextColor.
  lastWord := nextWord.
  ].
  lastValue := lastColor scaledPixelValue32.
  lastIndex+1 to: length do:[:i| bits at: i put: lastValue].
  ^bits!

Item was changed:
  ----- Method: InterpolatedGradientFillStyle>>computePixelRampOfSize: (in category 'as yet unclassified') -----
  computePixelRampOfSize: length
  "Compute the pixel ramp in the receiver."
 
  | bits ramp lastColor lastIndex lastWord |
+ ramp := colorRamp sorted:[:a1 :a2| a1 key < a2 key].
- ramp := colorRamp asSortedCollection:[:a1 :a2| a1 key < a2 key].
  bits := Bitmap new: length.
  lastColor := ramp first value.
  lastWord := lastColor pixelWord32.
  lastIndex := 0.
  ramp do:[:assoc| | distance nextColor theta nextWord nextIndex step |
  nextIndex := (assoc key * length) rounded.
  nextColor := assoc value.
  nextWord := nextColor pixelWord32.
  distance := nextIndex - lastIndex.
  distance = 0 ifTrue: [distance := 1].
  step := 1.0 / distance.
  theta := 0.0.
  lastIndex+1 to: nextIndex do: [:i|
  theta := theta + step.
  bits at: i put: (self interpolatedAlphaMix: theta of: lastWord and: nextWord)].
  lastIndex := nextIndex.
  lastColor := nextColor.
  lastWord := nextWord].
  lastIndex+1 to: length do: [:i| bits at: i put: lastWord].
  ^bits!