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-rw-r--r--layout/base/nsLayoutUtils.cpp64
1 files changed, 26 insertions, 38 deletions
diff --git a/layout/base/nsLayoutUtils.cpp b/layout/base/nsLayoutUtils.cpp
index fb0b42a6c..5de6f2013 100644
--- a/layout/base/nsLayoutUtils.cpp
+++ b/layout/base/nsLayoutUtils.cpp
@@ -4045,7 +4045,7 @@ nsLayoutUtils::GetTextShadowRectsUnion(const nsRect& aTextAndDecorationsRect,
enum ObjectDimensionType { eWidth, eHeight };
static nscoord
ComputeMissingDimension(const nsSize& aDefaultObjectSize,
- const nsSize& aIntrinsicRatio,
+ const AspectRatio& aIntrinsicRatio,
const Maybe<nscoord>& aSpecifiedWidth,
const Maybe<nscoord>& aSpecifiedHeight,
ObjectDimensionType aDimensionToCompute)
@@ -4056,21 +4056,15 @@ ComputeMissingDimension(const nsSize& aDefaultObjectSize,
// 1. "If the object has an intrinsic aspect ratio, the missing dimension of
// the concrete object size is calculated using the intrinsic aspect
// ratio and the present dimension."
- if (aIntrinsicRatio.width > 0 && aIntrinsicRatio.height > 0) {
+ if (aIntrinsicRatio) {
// Fill in the missing dimension using the intrinsic aspect ratio.
- nscoord knownDimensionSize;
- float ratio;
if (aDimensionToCompute == eWidth) {
- knownDimensionSize = *aSpecifiedHeight;
- ratio = aIntrinsicRatio.width / aIntrinsicRatio.height;
- } else {
- knownDimensionSize = *aSpecifiedWidth;
- ratio = aIntrinsicRatio.height / aIntrinsicRatio.width;
+ return aIntrinsicRatio.ApplyTo(*aSpecifiedHeight);
}
- return NSCoordSaturatingNonnegativeMultiply(knownDimensionSize, ratio);
+ return aIntrinsicRatio.Inverted().ApplyTo(*aSpecifiedWidth);
}
- // 2. "Otherwise, if the missing dimension is present in the object’s
+ // 2. "Otherwise, if the missing dimension is present in the object's
// intrinsic dimensions, [...]"
// NOTE: *Skipping* this case, because we already know it's not true -- we're
// in this function because the missing dimension is *not* present in
@@ -4108,7 +4102,7 @@ ComputeMissingDimension(const nsSize& aDefaultObjectSize,
static Maybe<nsSize>
MaybeComputeObjectFitNoneSize(const nsSize& aDefaultObjectSize,
const IntrinsicSize& aIntrinsicSize,
- const nsSize& aIntrinsicRatio)
+ const AspectRatio& aIntrinsicRatio)
{
// "If the object has an intrinsic height or width, its size is resolved as
// if its intrinsic dimensions were given as the specified size."
@@ -4155,15 +4149,13 @@ MaybeComputeObjectFitNoneSize(const nsSize& aDefaultObjectSize,
static nsSize
ComputeConcreteObjectSize(const nsSize& aConstraintSize,
const IntrinsicSize& aIntrinsicSize,
- const nsSize& aIntrinsicRatio,
+ const AspectRatio& aIntrinsicRatio,
uint8_t aObjectFit)
{
// Handle default behavior (filling the container) w/ fast early return.
// (Also: if there's no valid intrinsic ratio, then we have the "fill"
// behavior & just use the constraint size.)
- if (MOZ_LIKELY(aObjectFit == NS_STYLE_OBJECT_FIT_FILL) ||
- aIntrinsicRatio.width == 0 ||
- aIntrinsicRatio.height == 0) {
+ if (MOZ_LIKELY(aObjectFit == NS_STYLE_OBJECT_FIT_FILL) || !aIntrinsicRatio) {
return aConstraintSize;
}
@@ -4250,7 +4242,7 @@ HasInitialObjectFitAndPosition(const nsStylePosition* aStylePos)
/* static */ nsRect
nsLayoutUtils::ComputeObjectDestRect(const nsRect& aConstraintRect,
const IntrinsicSize& aIntrinsicSize,
- const nsSize& aIntrinsicRatio,
+ const AspectRatio& aIntrinsicRatio,
const nsStylePosition* aStylePos,
nsPoint* aAnchorPoint)
{
@@ -5172,10 +5164,12 @@ nsLayoutUtils::IntrinsicForAxis(PhysicalAxis aAxis,
styleMinBSize.GetCoordValue() == 0)) ||
styleMaxBSize.GetUnit() != eStyleUnit_None) {
- nsSize ratio(aFrame->GetIntrinsicRatio());
- nscoord ratioISize = (horizontalAxis ? ratio.width : ratio.height);
- nscoord ratioBSize = (horizontalAxis ? ratio.height : ratio.width);
- if (ratioBSize != 0) {
+ AspectRatio ratio = aFrame->GetIntrinsicRatio();
+ if (ratio) {
+ // Convert 'ratio' if necessary, so that it's storing ISize/BSize:
+ if (!horizontalAxis) {
+ ratio = ratio.Inverted();
+ }
AddStateBitToAncestors(aFrame,
NS_FRAME_DESCENDANT_INTRINSIC_ISIZE_DEPENDS_ON_BSIZE);
@@ -5191,14 +5185,14 @@ nsLayoutUtils::IntrinsicForAxis(PhysicalAxis aAxis,
(aPercentageBasis.isNothing() &&
GetPercentBSize(styleBSize, aFrame, horizontalAxis, h))) {
h = std::max(0, h - bSizeTakenByBoxSizing);
- result = NSCoordMulDiv(h, ratioISize, ratioBSize);
+ result = ratio.ApplyTo(h);
}
if (GetDefiniteSize(styleMaxBSize, aFrame, !isInlineAxis, aPercentageBasis, &h) ||
(aPercentageBasis.isNothing() &&
GetPercentBSize(styleMaxBSize, aFrame, horizontalAxis, h))) {
h = std::max(0, h - bSizeTakenByBoxSizing);
- nscoord maxISize = NSCoordMulDiv(h, ratioISize, ratioBSize);
+ nscoord maxISize = ratio.ApplyTo(h);
if (maxISize < result) {
result = maxISize;
}
@@ -5211,7 +5205,7 @@ nsLayoutUtils::IntrinsicForAxis(PhysicalAxis aAxis,
(aPercentageBasis.isNothing() &&
GetPercentBSize(styleMinBSize, aFrame, horizontalAxis, h))) {
h = std::max(0, h - bSizeTakenByBoxSizing);
- nscoord minISize = NSCoordMulDiv(h, ratioISize, ratioBSize);
+ nscoord minISize = ratio.ApplyTo(h);
if (minISize > result) {
result = minISize;
}
@@ -6674,12 +6668,12 @@ nsLayoutUtils::DrawSingleImage(gfxContext& aContext,
/* static */ void
nsLayoutUtils::ComputeSizeForDrawing(imgIContainer *aImage,
CSSIntSize& aImageSize, /*outparam*/
- nsSize& aIntrinsicRatio, /*outparam*/
+ AspectRatio& aIntrinsicRatio, /*outparam*/
bool& aGotWidth, /*outparam*/
bool& aGotHeight /*outparam*/)
{
aGotWidth = NS_SUCCEEDED(aImage->GetWidth(&aImageSize.width));
- aGotHeight = NS_SUCCEEDED(aImage->GetHeight(&aImageSize.height));
+ aGotHeight = NS_SUCCEEDED(aImage->GetHeight(&aImageSize.height));
bool gotRatio = NS_SUCCEEDED(aImage->GetIntrinsicRatio(&aIntrinsicRatio));
if (!(aGotWidth && aGotHeight) && !gotRatio) {
@@ -6687,7 +6681,7 @@ nsLayoutUtils::ComputeSizeForDrawing(imgIContainer *aImage,
// decoded) and should return zero size.
aGotWidth = aGotHeight = true;
aImageSize = CSSIntSize(0, 0);
- aIntrinsicRatio = nsSize(0, 0);
+ aIntrinsicRatio = AspectRatio();
}
}
@@ -6696,7 +6690,7 @@ nsLayoutUtils::ComputeSizeForDrawingWithFallback(imgIContainer* aImage,
const nsSize& aFallbackSize)
{
CSSIntSize imageSize;
- nsSize imageRatio;
+ AspectRatio imageRatio;
bool gotHeight, gotWidth;
ComputeSizeForDrawing(aImage, imageSize, imageRatio, gotWidth, gotHeight);
@@ -6704,19 +6698,13 @@ nsLayoutUtils::ComputeSizeForDrawingWithFallback(imgIContainer* aImage,
// intrinsic ratio of the image.
if (gotWidth != gotHeight) {
if (!gotWidth) {
- if (imageRatio.height != 0) {
- imageSize.width =
- NSCoordSaturatingNonnegativeMultiply(imageSize.height,
- float(imageRatio.width) /
- float(imageRatio.height));
+ if (imageRatio) {
+ imageSize.width = imageRatio.ApplyTo(imageSize.height);
gotWidth = true;
}
} else {
- if (imageRatio.width != 0) {
- imageSize.height =
- NSCoordSaturatingNonnegativeMultiply(imageSize.width,
- float(imageRatio.height) /
- float(imageRatio.width));
+ if (imageRatio) {
+ imageSize.height = imageRatio.Inverted().ApplyTo(imageSize.width);
gotHeight = true;
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 11:29:29 +0000