Added GetStyleSize
git-svn-id: svn://10.0.0.236/trunk@1248 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
kipp
parent
f3b0df343f
commit
83683e9db6
@ -24,6 +24,8 @@
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#include "nsIPresContext.h"
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#include "nsRect.h"
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#include "nsIPtr.h"
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#include "nsBlockFrame.h"
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#include "nsHTMLIIDs.h"
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static NS_DEFINE_IID(kStyleTextSID, NS_STYLETEXT_SID);
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static NS_DEFINE_IID(kStylePositionSID, NS_STYLEPOSITION_SID);
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@ -38,14 +40,15 @@ NS_DEF_PTR(nsIContent);
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* fly. Hopefully that's ok because his code generated surprising
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* results in a number of unusual cases.
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*/
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nscoord nsCSSLayout::VerticallyAlignChildren(nsIPresContext* aCX,
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nsIFrame* aContainer,
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nsStyleFont* aContainerFont,
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nscoord aY0,
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nsIFrame* aFirstChild,
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PRIntn aChildCount,
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nscoord* aAscents,
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nscoord aMaxAscent)
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nscoord
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nsCSSLayout::VerticallyAlignChildren(nsIPresContext* aCX,
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nsIFrame* aContainer,
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nsStyleFont* aContainerFont,
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nscoord aY0,
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nsIFrame* aFirstChild,
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PRIntn aChildCount,
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nscoord* aAscents,
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nscoord aMaxAscent)
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{
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// Determine minimum and maximum y values for the line and
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// perform alignment of all children except those requesting bottom
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@ -197,13 +200,14 @@ nscoord nsCSSLayout::VerticallyAlignChildren(nsIPresContext* aCX,
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/**
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* Horizontally place the children in the container frame.
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*/
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void nsCSSLayout::HorizontallyPlaceChildren(nsIPresContext* aCX,
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nsIFrame* aContainer,
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nsStyleText* aContainerStyle,
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nsIFrame* aFirstChild,
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PRInt32 aChildCount,
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nscoord aLineWidth,
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nscoord aMaxWidth)
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void
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nsCSSLayout::HorizontallyPlaceChildren(nsIPresContext* aCX,
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nsIFrame* aContainer,
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nsStyleText* aContainerStyle,
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nsIFrame* aFirstChild,
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PRInt32 aChildCount,
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nscoord aLineWidth,
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nscoord aMaxWidth)
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{
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PRIntn textAlign = aContainerStyle->mTextAlign;
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nscoord dx = 0;
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@ -235,10 +239,11 @@ void nsCSSLayout::HorizontallyPlaceChildren(nsIPresContext* aCX,
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/**
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* Apply css relative positioning to any child that requires it.
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*/
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void nsCSSLayout::RelativePositionChildren(nsIPresContext* aCX,
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nsIFrame* aContainer,
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nsIFrame* aFirstChild,
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PRInt32 aChildCount)
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void
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nsCSSLayout::RelativePositionChildren(nsIPresContext* aCX,
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nsIFrame* aContainer,
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nsIFrame* aFirstChild,
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PRInt32 aChildCount)
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{
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nsPoint origin;
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nsIFrame* kid = aFirstChild;
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@ -260,3 +265,75 @@ void nsCSSLayout::RelativePositionChildren(nsIPresContext* aCX,
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kid->GetNextSibling(kid);
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}
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}
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static PRBool
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GetStyleDimension(nsIPresContext* aPresContext,
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nsIFrame* aFrame,
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nsStylePosition* aStylePos,
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nsStyleCoord& aCoord,
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nscoord& aResult)
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{
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nsIFrame* parentFrame;
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float p2t;
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PRBool rv = PR_FALSE;
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switch (aCoord.GetUnit()) {
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case eStyleUnit_Coord:
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aResult = aCoord.GetCoordValue();
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rv = PR_TRUE;
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break;
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case eStyleUnit_Percent:
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// CSS2 has specified that percentage width/height values are basd
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// on the containing block's <B>width</B>.
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aFrame->GetContentParent(parentFrame);
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while (nsnull != parentFrame) {
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nsBlockFrame* block;
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nsresult status =
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parentFrame->QueryInterface(kBlockFrameCID, (void**) &block);
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if (NS_OK == status) {
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nsRect blockRect;
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block->GetRect(blockRect);
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aResult = nscoord(blockRect.width * aCoord.GetPercentValue());
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rv = PR_TRUE;
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break;
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}
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}
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break;
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case eStyleUnit_Integer:
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p2t = aPresContext->GetPixelsToTwips();
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aResult = nscoord(aCoord.GetIntValue() * p2t);
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break;
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}
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if (aResult < 0) {
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rv = PR_FALSE;
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}
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return rv;
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}
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PRIntn
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nsCSSLayout::GetStyleSize(nsIPresContext* aPresContext,
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nsIFrame* aFrame,
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nsSize& aStyleSize)
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{
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// XXX if display == row || rowspan ignore width
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// XXX if display == col || colspan ignore height
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PRIntn rv = NS_SIZE_HAS_NONE;
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nsIStyleContext* sc = nsnull;
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aFrame->GetStyleContext(aPresContext, sc);
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if (nsnull != sc) {
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nsStylePosition* pos = (nsStylePosition*) sc->GetData(kStylePositionSID);
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if (GetStyleDimension(aPresContext, aFrame, pos, pos->mWidth,
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aStyleSize.width)) {
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rv |= NS_SIZE_HAS_WIDTH;
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}
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if (GetStyleDimension(aPresContext, aFrame, pos, pos->mHeight,
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aStyleSize.height)) {
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rv |= NS_SIZE_HAS_HEIGHT;
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}
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}
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return rv;
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}
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@ -24,6 +24,8 @@
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#include "nsIPresContext.h"
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#include "nsRect.h"
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#include "nsIPtr.h"
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#include "nsBlockFrame.h"
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#include "nsHTMLIIDs.h"
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static NS_DEFINE_IID(kStyleTextSID, NS_STYLETEXT_SID);
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static NS_DEFINE_IID(kStylePositionSID, NS_STYLEPOSITION_SID);
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@ -38,14 +40,15 @@ NS_DEF_PTR(nsIContent);
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* fly. Hopefully that's ok because his code generated surprising
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* results in a number of unusual cases.
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*/
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nscoord nsCSSLayout::VerticallyAlignChildren(nsIPresContext* aCX,
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nsIFrame* aContainer,
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nsStyleFont* aContainerFont,
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nscoord aY0,
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nsIFrame* aFirstChild,
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PRIntn aChildCount,
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nscoord* aAscents,
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nscoord aMaxAscent)
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nscoord
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nsCSSLayout::VerticallyAlignChildren(nsIPresContext* aCX,
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nsIFrame* aContainer,
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nsStyleFont* aContainerFont,
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nscoord aY0,
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nsIFrame* aFirstChild,
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PRIntn aChildCount,
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nscoord* aAscents,
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nscoord aMaxAscent)
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{
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// Determine minimum and maximum y values for the line and
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// perform alignment of all children except those requesting bottom
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@ -197,13 +200,14 @@ nscoord nsCSSLayout::VerticallyAlignChildren(nsIPresContext* aCX,
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/**
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* Horizontally place the children in the container frame.
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*/
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void nsCSSLayout::HorizontallyPlaceChildren(nsIPresContext* aCX,
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nsIFrame* aContainer,
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nsStyleText* aContainerStyle,
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nsIFrame* aFirstChild,
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PRInt32 aChildCount,
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nscoord aLineWidth,
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nscoord aMaxWidth)
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void
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nsCSSLayout::HorizontallyPlaceChildren(nsIPresContext* aCX,
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nsIFrame* aContainer,
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nsStyleText* aContainerStyle,
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nsIFrame* aFirstChild,
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PRInt32 aChildCount,
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nscoord aLineWidth,
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nscoord aMaxWidth)
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{
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PRIntn textAlign = aContainerStyle->mTextAlign;
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nscoord dx = 0;
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@ -235,10 +239,11 @@ void nsCSSLayout::HorizontallyPlaceChildren(nsIPresContext* aCX,
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/**
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* Apply css relative positioning to any child that requires it.
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*/
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void nsCSSLayout::RelativePositionChildren(nsIPresContext* aCX,
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nsIFrame* aContainer,
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nsIFrame* aFirstChild,
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PRInt32 aChildCount)
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void
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nsCSSLayout::RelativePositionChildren(nsIPresContext* aCX,
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nsIFrame* aContainer,
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nsIFrame* aFirstChild,
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PRInt32 aChildCount)
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{
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nsPoint origin;
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nsIFrame* kid = aFirstChild;
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@ -260,3 +265,75 @@ void nsCSSLayout::RelativePositionChildren(nsIPresContext* aCX,
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kid->GetNextSibling(kid);
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}
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}
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static PRBool
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GetStyleDimension(nsIPresContext* aPresContext,
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nsIFrame* aFrame,
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nsStylePosition* aStylePos,
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nsStyleCoord& aCoord,
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nscoord& aResult)
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{
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nsIFrame* parentFrame;
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float p2t;
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PRBool rv = PR_FALSE;
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switch (aCoord.GetUnit()) {
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case eStyleUnit_Coord:
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aResult = aCoord.GetCoordValue();
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rv = PR_TRUE;
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break;
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case eStyleUnit_Percent:
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// CSS2 has specified that percentage width/height values are basd
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// on the containing block's <B>width</B>.
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aFrame->GetContentParent(parentFrame);
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while (nsnull != parentFrame) {
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nsBlockFrame* block;
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nsresult status =
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parentFrame->QueryInterface(kBlockFrameCID, (void**) &block);
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if (NS_OK == status) {
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nsRect blockRect;
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block->GetRect(blockRect);
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aResult = nscoord(blockRect.width * aCoord.GetPercentValue());
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rv = PR_TRUE;
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break;
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}
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}
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break;
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case eStyleUnit_Integer:
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p2t = aPresContext->GetPixelsToTwips();
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aResult = nscoord(aCoord.GetIntValue() * p2t);
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break;
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}
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if (aResult < 0) {
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rv = PR_FALSE;
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}
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return rv;
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}
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PRIntn
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nsCSSLayout::GetStyleSize(nsIPresContext* aPresContext,
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nsIFrame* aFrame,
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nsSize& aStyleSize)
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{
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// XXX if display == row || rowspan ignore width
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// XXX if display == col || colspan ignore height
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PRIntn rv = NS_SIZE_HAS_NONE;
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nsIStyleContext* sc = nsnull;
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aFrame->GetStyleContext(aPresContext, sc);
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if (nsnull != sc) {
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nsStylePosition* pos = (nsStylePosition*) sc->GetData(kStylePositionSID);
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if (GetStyleDimension(aPresContext, aFrame, pos, pos->mWidth,
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aStyleSize.width)) {
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rv |= NS_SIZE_HAS_WIDTH;
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}
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if (GetStyleDimension(aPresContext, aFrame, pos, pos->mHeight,
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aStyleSize.height)) {
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rv |= NS_SIZE_HAS_HEIGHT;
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}
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}
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return rv;
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}
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@ -19,10 +19,11 @@
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#define nsCSSLayout_h___
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#include "nsCoord.h"
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class nsIFrame;
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class nsIPresContext;
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struct nsSize;
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struct nsStyleFont;
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struct nsStyleText;
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class nsIFrame;
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class nsCSSLayout {
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public:
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@ -57,6 +58,22 @@ public:
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nsIFrame* aContainer,
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nsIFrame* aFirstChild,
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PRInt32 aChildCount);
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/**
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* Get the CSS size (width & height) values for the given
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* frame. The value returned indicates which values were set
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* stylistically.
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*/
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static PRIntn GetStyleSize(nsIPresContext* aPresContext,
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nsIFrame* aFrame,
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nsSize& aStyleSize);
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// Return value from GetStyleSize
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#define NS_SIZE_HAS_NONE 0x0
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#define NS_SIZE_HAS_WIDTH 0x1
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#define NS_SIZE_HAS_HEIGHT 0x2
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#define NS_SIZE_HAS_BOTH 0x3
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};
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#endif /* nsCSSLayout_h___ */
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