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Add api for retrieving computed padding

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Differential Revision: D4376572

fbshipit-source-id: 3ffb66e77090fc1257511bec5c933f9b0c304b9f
This commit is contained in:
Emil Sjolander 2017-01-05 12:48:07 -08:00 committed by Facebook Github Bot
parent da59258372
commit d9c35e8952
2 changed files with 42 additions and 6 deletions
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34
ReactCommon/yoga/yoga/Yoga.c
View File

@ -47,6 +47,7 @@ typedef struct YGCachedMeasurement {
typedef struct YGLayout {
float position[4];
float dimensions[2];
float padding[6];
YGDirection direction;
uint32_t computedFlexBasisGeneration;
@ -94,16 +95,18 @@ typedef struct YGNode {
YGStyle style;
YGLayout layout;
uint32_t lineIndex;
bool hasNewLayout;
YGNodeRef parent;
YGNodeListRef children;
bool isDirty;
struct YGNode *nextChild;
YGMeasureFunc measure;
YGPrintFunc print;
void *context;
bool isDirty;
bool hasNewLayout;
} YGNode;
#define YG_UNDEFINED_VALUES \
@ -561,6 +564,28 @@ YG_NODE_LAYOUT_PROPERTY_IMPL(float, Width, dimensions[YGDimensionWidth]);
YG_NODE_LAYOUT_PROPERTY_IMPL(float, Height, dimensions[YGDimensionHeight]);
YG_NODE_LAYOUT_PROPERTY_IMPL(YGDirection, Direction, direction);
float YGNodeLayoutGetPadding(const YGNodeRef node, const YGEdge edge) {
YG_ASSERT(edge <= YGEdgeEnd, "Cannot get layout paddings of multi-edge shorthands");
if (edge == YGEdgeLeft) {
if (node->layout.direction == YGDirectionRTL) {
return node->layout.padding[YGEdgeEnd];
} else {
return node->layout.padding[YGEdgeStart];
}
}
if (edge == YGEdgeRight) {
if (node->layout.direction == YGDirectionRTL) {
return node->layout.padding[YGEdgeStart];
} else {
return node->layout.padding[YGEdgeEnd];
}
}
return node->layout.padding[edge];
}
uint32_t gCurrentGenerationCount = 0;
bool YGLayoutNodeInternal(const YGNodeRef node,
@ -1655,6 +1680,11 @@ static void YGNodelayoutImpl(const YGNodeRef node,
const YGDirection direction = YGNodeResolveDirection(node, parentDirection);
node->layout.direction = direction;
node->layout.padding[YGEdgeStart] = YGNodeLeadingPadding(node, YGFlexDirectionResolve(YGFlexDirectionRow, direction), parentWidth);
node->layout.padding[YGEdgeEnd] = YGNodeTrailingPadding(node, YGFlexDirectionResolve(YGFlexDirectionRow, direction), parentWidth);
node->layout.padding[YGEdgeTop] = YGNodeLeadingPadding(node, YGFlexDirectionResolve(YGFlexDirectionColumn, direction), parentWidth);
node->layout.padding[YGEdgeBottom] = YGNodeTrailingPadding(node, YGFlexDirectionResolve(YGFlexDirectionColumn, direction), parentWidth);
if (node->measure) {
YGNodeWithMeasureFuncSetMeasuredDimensions(
node, availableWidth, availableHeight, widthMeasureMode, heightMeasureMode);

6
ReactCommon/yoga/yoga/Yoga.h
View File

@ -191,6 +191,12 @@ YG_NODE_LAYOUT_PROPERTY(float, Width);
YG_NODE_LAYOUT_PROPERTY(float, Height);
YG_NODE_LAYOUT_PROPERTY(YGDirection, Direction);
// Get the computed padding for this node after performing layout. If padding was set using
// pixel values then the returned value will be the same as YGNodeStyleGetPadding. However if
// padding was set using a percentage value then the returned value is the computed value used
// during layout.
WIN_EXPORT float YGNodeLayoutGetPadding(const YGNodeRef node, const YGEdge edge);
WIN_EXPORT void YGSetLogger(YGLogger logger);
WIN_EXPORT void YGLog(YGLogLevel level, const char *message, ...);