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Add more unit tests for rounding values to pixel grid #1776

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rshest wants to merge 2 commits from export-D67712673 into main
pull from: export-D67712673
merge into: DaddyFrosty:main
Conversation 5 Commits 2 Files Changed 2 +9 -6
1 changed files with 9 additions and 6 deletions
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Showing only changes of commit 7cb2b9ba55 - Show all commits

15
yoga/algorithm/PixelGrid.cpp
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@@ -66,7 +66,8 @@ void roundLayoutResultsToPixelGrid(
yoga::Node* const node,
const double absoluteLeft,
const double absoluteTop) {
const auto pointScaleFactor = node->getConfig()->getPointScaleFactor();
const auto pointScaleFactor =
static_cast<double>(node->getConfig()->getPointScaleFactor());
const double nodeLeft = node->getLayout().position(PhysicalEdge::Left);
const double nodeTop = node->getLayout().position(PhysicalEdge::Top);
@@ -80,7 +81,7 @@ void roundLayoutResultsToPixelGrid(
const double absoluteNodeRight = absoluteNodeLeft + nodeWidth;
const double absoluteNodeBottom = absoluteNodeTop + nodeHeight;
if (pointScaleFactor != 0.0f) {
if (pointScaleFactor != 0.0) {
// If a node has a custom measure function we never want to round down its
// size as this could lead to unwanted text truncation.
const bool textRounding = node->getNodeType() == NodeType::Text;
@@ -96,12 +97,14 @@ void roundLayoutResultsToPixelGrid(
// We multiply dimension by scale factor and if the result is close to the
// whole number, we don't have any fraction To verify if the result is close
// to whole number we want to check both floor and ceil numbers
const double scaledNodeWith = nodeWidth * pointScaleFactor;
const bool hasFractionalWidth =
!yoga::inexactEquals(fmod(nodeWidth * pointScaleFactor, 1.0), 0) &&
!yoga::inexactEquals(fmod(nodeWidth * pointScaleFactor, 1.0), 1.0);
!yoga::inexactEquals(round(scaledNodeWith), scaledNodeWith);
const double scaledNodeHeight = nodeHeight * pointScaleFactor;
const bool hasFractionalHeight =
!yoga::inexactEquals(fmod(nodeHeight * pointScaleFactor, 1.0), 0) &&
!yoga::inexactEquals(fmod(nodeHeight * pointScaleFactor, 1.0), 1.0);
!yoga::inexactEquals(round(scaledNodeHeight), scaledNodeHeight);
node->setLayoutDimension(
roundValueToPixelGrid(