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BREAKING - Change aspect ratio to always be width/height

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Summary:
@public

Aspect ratio being defined as width/height or height/width depending on the situation it was used in turned out to be very confusing. This diff makes aspect ratio always be defined as width/height irregardless of the usage.

Differential Revision: D4339132

fbshipit-source-id: e5da32750b55ddaf6acaf1cbd7662d86f2b480c3
This commit is contained in:
Emil Sjolander
2016-12-22 02:57:15 -08:00
committed by Facebook Github Bot
parent 3d10ba5f72
commit 071f576db9
3 changed files with 8 additions and 5 deletions
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4
tests/YGAspectRatioTest.cpp
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@@ -351,7 +351,7 @@ TEST(YogaTest, aspect_ratio_double_main) {
const YGNodeRef root_child0 = YGNodeNew();
YGNodeStyleSetWidth(root_child0, 50);
YGNodeStyleSetAspectRatio(root_child0, 2);
YGNodeStyleSetAspectRatio(root_child0, 0.5);
YGNodeInsertChild(root, root_child0, 0);
YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
@@ -372,7 +372,7 @@ TEST(YogaTest, aspect_ratio_half_main) {
const YGNodeRef root_child0 = YGNodeNew();
YGNodeStyleSetWidth(root_child0, 100);
YGNodeStyleSetAspectRatio(root_child0, 0.5);
YGNodeStyleSetAspectRatio(root_child0, 2);
YGNodeInsertChild(root, root_child0, 0);
YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);

6
yoga/Yoga.c
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@@ -1062,7 +1062,7 @@ static void YGNodeComputeFlexBasisForChild(const YGNodeRef node,
if (!YGValueIsUndefined(child->style.aspectRatio)) {
if (!isMainAxisRow && childWidthMeasureMode == YGMeasureModeExactly) {
child->layout.computedFlexBasis =
fmaxf(childWidth * child->style.aspectRatio,
fmaxf(childWidth / child->style.aspectRatio,
YGNodePaddingAndBorderForAxis(child, YGFlexDirectionColumn));
return;
} else if (isMainAxisRow && childHeightMeasureMode == YGMeasureModeExactly) {
@@ -1157,7 +1157,7 @@ static void YGNodeAbsoluteLayoutChild(const YGNodeRef node,
childWidth = fmaxf(childHeight * child->style.aspectRatio,
YGNodePaddingAndBorderForAxis(child, YGFlexDirectionColumn));
} else if (YGValueIsUndefined(childHeight)) {
childHeight = fmaxf(childWidth * child->style.aspectRatio,
childHeight = fmaxf(childWidth / child->style.aspectRatio,
YGNodePaddingAndBorderForAxis(child, YGFlexDirectionRow));
}
}
@@ -1880,7 +1880,7 @@ static void YGNodelayoutImpl(const YGNodeRef node,
if (!YGValueIsUndefined(currentRelativeChild->style.aspectRatio)) {
if (isMainAxisRow && childHeightMeasureMode != YGMeasureModeExactly) {
childHeight =
fmaxf(childWidth * currentRelativeChild->style.aspectRatio,
fmaxf(childWidth / currentRelativeChild->style.aspectRatio,
YGNodePaddingAndBorderForAxis(currentRelativeChild, YGFlexDirectionColumn));
childHeightMeasureMode = YGMeasureModeExactly;
} else if (!isMainAxisRow && childWidthMeasureMode != YGMeasureModeExactly) {

3
yoga/Yoga.h
View File

@@ -151,6 +151,9 @@ YG_NODE_STYLE_PROPERTY(float, MaxHeight, maxHeight);
// Yoga specific properties, not compatible with flexbox specification
// Aspect ratio control the size of the undefined dimension of a node.
// Aspect ratio is encoded as a floating point value width/height. e.g. A value of 2 leads to a node
// with a width twice the size of its height while a value of 0.5 gives the opposite effect.
//
// - On a node with a set width/height aspect ratio control the size of the unset dimension
// - On a node with a set flex basis aspect ratio controls the size of the node in the cross axis if
// unset