From da654e994cdbf0589b3f4a40ef4bae9d9e81b948 Mon Sep 17 00:00:00 2001 From: kipp Date: Thu, 14 May 1998 02:46:28 +0000 Subject: [PATCH] nuked git-svn-id: svn://10.0.0.236/trunk@1600 18797224-902f-48f8-a5cc-f745e15eee43 --- .../layout/html/base/src/nsColumnFrame.cpp | 1170 ----------------- mozilla/layout/html/base/src/nsColumnFrame.h | 90 -- 2 files changed, 1260 deletions(-) delete mode 100644 mozilla/layout/html/base/src/nsColumnFrame.cpp delete mode 100644 mozilla/layout/html/base/src/nsColumnFrame.h diff --git a/mozilla/layout/html/base/src/nsColumnFrame.cpp b/mozilla/layout/html/base/src/nsColumnFrame.cpp deleted file mode 100644 index f97208a7e4b..00000000000 --- a/mozilla/layout/html/base/src/nsColumnFrame.cpp +++ /dev/null @@ -1,1170 +0,0 @@ -/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- - * - * The contents of this file are subject to the Netscape Public License - * Version 1.0 (the "NPL"); you may not use this file except in - * compliance with the NPL. You may obtain a copy of the NPL at - * http://www.mozilla.org/NPL/ - * - * Software distributed under the NPL is distributed on an "AS IS" basis, - * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL - * for the specific language governing rights and limitations under the - * NPL. - * - * The Initial Developer of this code under the NPL is Netscape - * Communications Corporation. Portions created by Netscape are - * Copyright (C) 1998 Netscape Communications Corporation. All Rights - * Reserved. - */ -#include "nsColumnFrame.h" -#include "nsIContent.h" -#include "nsIContentDelegate.h" -#include "nsBlockFrame.h" -#include "nsReflowCommand.h" -#include "nsIStyleContext.h" -#include "nsStyleConsts.h" -#include "nsIPresContext.h" -#include "nsIPresShell.h" -#include "nsIViewManager.h" -#include "nsIDeviceContext.h" -#include "nsISpaceManager.h" -#include "nsIPtr.h" -#include "nsAbsoluteFrame.h" - -#ifdef NS_DEBUG -#undef NOISY -#undef NOISY_FLOW -#else -#undef NOISY -#undef NOISY_FLOW -#endif - -static NS_DEFINE_IID(kIRunaroundIID, NS_IRUNAROUND_IID); -static NS_DEFINE_IID(kStyleSpacingSID, NS_STYLESPACING_SID); -static NS_DEFINE_IID(kStyleDisplaySID, NS_STYLEDISPLAY_SID); -static NS_DEFINE_IID(kStylePositionSID, NS_STYLEPOSITION_SID); - -NS_DEF_PTR(nsIStyleContext); -NS_DEF_PTR(nsIContent); - -struct ColumnReflowState { - // The space manager to use - nsISpaceManager* spaceManager; - - // The body's available size (computed from the body's parent) - nsSize availSize; - - // The running max child x-most (used to size our frame when done). - // This includes the child's right margin. - nscoord kidXMost; - - // Running y-offset - nscoord y; - - // Margin tracking information - nscoord prevMaxPosBottomMargin; - nscoord prevMaxNegBottomMargin; - - // Flags for whether the max size is unconstrained - PRBool unconstrainedWidth; - PRBool unconstrainedHeight; - - ColumnReflowState(nsIPresContext* aPresContext, - nsISpaceManager* aSpaceManager, - const nsSize& aMaxSize) - { - spaceManager = aSpaceManager; - availSize.width = aMaxSize.width; - availSize.height = aMaxSize.height; - kidXMost = 0; - prevMaxPosBottomMargin = 0; - prevMaxNegBottomMargin = 0; - unconstrainedWidth = PRBool(aMaxSize.width == NS_UNCONSTRAINEDSIZE); - unconstrainedHeight = PRBool(aMaxSize.height == NS_UNCONSTRAINEDSIZE); - - // Since we're always used as a pseudo frame we have no border/padding - y = 0; - } - - ~ColumnReflowState() { - } -}; - -ColumnFrame::ColumnFrame(nsIContent* aContent, - PRInt32 aIndexInParent, - nsIFrame* aParentFrame) - : nsHTMLContainerFrame(aContent, aIndexInParent, aParentFrame) -{ - NS_PRECONDITION(IsPseudoFrame(), "can only be used as a pseudo frame"); -} - -ColumnFrame::~ColumnFrame() -{ -} - -nsresult ColumnFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr) -{ - NS_PRECONDITION(0 != aInstancePtr, "null ptr"); - if (nsnull == aInstancePtr) { - return NS_ERROR_NULL_POINTER; - } - if (aIID.Equals(kIRunaroundIID)) { - *aInstancePtr = (void**)((nsIRunaround*)this); - return NS_OK; - } - return nsHTMLContainerFrame::QueryInterface(aIID, aInstancePtr); -} - -// Collapse child's top margin with previous bottom margin -nscoord ColumnFrame::GetTopMarginFor(nsIPresContext* aCX, - ColumnReflowState& aState, - nsIFrame* aKidFrame, - const nsMargin& aKidMargin) -{ - // Does the frame have a prev-in-flow? - nsIFrame* kidPrevInFlow; - - aKidFrame->GetPrevInFlow(kidPrevInFlow); - - if (nsnull == kidPrevInFlow) { - nscoord margin; - nscoord maxNegTopMargin = 0; - nscoord maxPosTopMargin = 0; - - // XXX Style system should be zero'ing out margins for pseudo frames... - if (!ChildIsPseudoFrame(aKidFrame)) { - if ((margin = aKidMargin.top) < 0) { - maxNegTopMargin = -margin; - } else { - maxPosTopMargin = margin; - } - } - - nscoord maxPos = PR_MAX(aState.prevMaxPosBottomMargin, maxPosTopMargin); - nscoord maxNeg = PR_MAX(aState.prevMaxNegBottomMargin, maxNegTopMargin); - margin = maxPos - maxNeg; - - return margin; - } else { - return 0; - } -} - -// Position and size aKidFrame and update our reflow state. The origin of -// aKidRect is relative to the upper-left origin of our frame, and includes -// any left/top margin. -void ColumnFrame::PlaceChild(nsIPresContext* aPresContext, - ColumnReflowState& aState, - nsIFrame* aKidFrame, - const nsMargin& aKidMargin, - const nsRect& aKidRect, - nsSize* aMaxElementSize, - nsSize& aKidMaxElementSize) -{ - // Place and size the child - aKidFrame->SetRect(aKidRect); - - // Adjust the running y-offset - aState.y += aKidRect.height; - aState.spaceManager->Translate(0, aKidRect.height); - - // Update the x-most - nscoord xMost = aKidRect.XMost() + aKidMargin.right; - if (xMost > aState.kidXMost) { - aState.kidXMost = xMost; - } - - // If our height is constrained then update the available height - if (PR_FALSE == aState.unconstrainedHeight) { - aState.availSize.height -= aKidRect.height; - } - - // Update the maximum element size - if (nsnull != aMaxElementSize) { - if (aKidMaxElementSize.width > aMaxElementSize->width) { - aMaxElementSize->width = aKidMaxElementSize.width; - } - if (aKidMaxElementSize.height > aMaxElementSize->height) { - aMaxElementSize->height = aKidMaxElementSize.height; - } - } -} - -/** - * Reflow the frames we've already created - * - * @param aPresContext presentation context to use - * @param aState current inline state - * @return true if we successfully reflowed all the mapped children and false - * otherwise, e.g. we pushed children to the next in flow - */ -PRBool ColumnFrame::ReflowMappedChildren(nsIPresContext* aPresContext, - ColumnReflowState& aState, - nsSize* aMaxElementSize) -{ -#ifdef NS_DEBUG - VerifyLastIsComplete(); -#endif -#ifdef NOISY - ListTag(stdout); - printf(": reflow mapped (childCount=%d) [%d,%d,%c]\n", - mChildCount, - mFirstContentOffset, mLastContentOffset, - (mLastContentIsComplete ? 'T' : 'F')); -#ifdef NOISY_FLOW - { - ColumnFrame* flow = (ColumnFrame*) mNextInFlow; - while (flow != 0) { - printf(" %p: [%d,%d,%c]\n", - flow, flow->mFirstContentOffset, flow->mLastContentOffset, - (flow->mLastContentIsComplete ? 'T' : 'F')); - flow = (ColumnFrame*) flow->mNextInFlow; - } - } -#endif -#endif - NS_PRECONDITION(nsnull != mFirstChild, "no children"); - - PRInt32 childCount = 0; - nsIFrame* prevKidFrame = nsnull; - - // Remember our original mLastContentIsComplete so that if we end up - // having to push children, we have the correct value to hand to - // PushChildren. - PRBool lastContentIsComplete = mLastContentIsComplete; - - nsSize kidMaxElementSize; - nsSize* pKidMaxElementSize = (nsnull != aMaxElementSize) ? &kidMaxElementSize : nsnull; - PRBool result = PR_TRUE; - - for (nsIFrame* kidFrame = mFirstChild; nsnull != kidFrame; ) { - nsSize kidAvailSize(aState.availSize); - nsRect kidRect; - nsIFrame::ReflowStatus status; - - // Get top margin for this kid - nsIStyleContextPtr kidSC; - - kidFrame->GetStyleContext(aPresContext, kidSC.AssignRef()); - nsStyleSpacing* kidSpacing = (nsStyleSpacing*) - kidSC->GetData(kStyleSpacingSID); - nsMargin kidMargin; - kidSpacing->CalcMarginFor(kidFrame, kidMargin); - nscoord topMargin = GetTopMarginFor(aPresContext, aState, - kidFrame, kidMargin); - - // XXX Style system should do this... - nscoord bottomMargin = ChildIsPseudoFrame(kidFrame) - ? 0 - : kidMargin.bottom; - - // Figure out the amount of available size for the child (subtract - // off the top margin we are going to apply to it) - // - // Note: don't subtract off for the child's left/right margins. ReflowChild() - // will do that when it determines the current left/right edge - if (PR_FALSE == aState.unconstrainedHeight) { - kidAvailSize.height -= topMargin; - } - - // Only skip the reflow if this is not our first child and we are - // out of space. - if ((kidFrame == mFirstChild) || (kidAvailSize.height > 0)) { - // Reflow the child into the available space - aState.spaceManager->Translate(0, topMargin); - status = ReflowChild(kidFrame, aPresContext, aState.spaceManager, - kidAvailSize, kidRect, pKidMaxElementSize); - aState.spaceManager->Translate(0, -topMargin); - } - - // Did the child fit? - if ((kidFrame != mFirstChild) && - ((kidAvailSize.height <= 0) || - (kidRect.YMost() > kidAvailSize.height))) - { - // The child's height is too big to fit at all in our remaining space, - // and it's not our first child. - // - // Note that if the width is too big that's okay and we allow the - // child to extend horizontally outside of the reflow area - - // Since we are giving the next-in-flow our last child, we - // give it our original mLastContentIsComplete, too (in case we - // are pushing into an empty next-in-flow) - PushChildren(kidFrame, prevKidFrame, lastContentIsComplete); - - // Our mLastContentIsComplete was already set by the last kid we - // reflowed reflow's status - result = PR_FALSE; - break; - } - - // Place the child after taking into account it's margin - aState.y += topMargin; - aState.spaceManager->Translate(0, topMargin); - kidRect.x += kidMargin.left; - kidRect.y += aState.y; - PlaceChild(aPresContext, aState, kidFrame, kidMargin, - kidRect, aMaxElementSize, kidMaxElementSize); - if (bottomMargin < 0) { - aState.prevMaxNegBottomMargin = -bottomMargin; - } else { - aState.prevMaxPosBottomMargin = bottomMargin; - } - childCount++; - - // Update mLastContentIsComplete now that this kid fits - mLastContentIsComplete = NS_FRAME_IS_COMPLETE(status); - - // Special handling for incomplete children - if (frNotComplete == status) { - nsIFrame* kidNextInFlow; - - kidFrame->GetNextInFlow(kidNextInFlow); - if (nsnull == kidNextInFlow) { - // No the child isn't complete, and it doesn't have a next in flow so - // create a continuing frame. This hooks the child into the flow. - nsIFrame* continuingFrame; - - kidFrame->CreateContinuingFrame(aPresContext, this, continuingFrame); - - // Insert the frame. We'll reflow it next pass through the loop - nsIFrame* nextSib; - - kidFrame->GetNextSibling(nextSib); - continuingFrame->SetNextSibling(nextSib); - kidFrame->SetNextSibling(continuingFrame); - if (nsnull == nextSib) { - // Assume that the continuation frame we just created is - // complete, for now. It will get reflowed by our - // next-in-flow (we are going to push it now) - lastContentIsComplete = PR_TRUE; - } - } - } - - // Get the next child - prevKidFrame = kidFrame; - kidFrame->GetNextSibling(kidFrame); - - // XXX talk with troy about checking for available space here - } - - // Update the child count - mChildCount = childCount; - NS_POSTCONDITION(LengthOf(mFirstChild) == mChildCount, "bad child count"); - - // Set the last content offset based on the last child we mapped. - NS_ASSERTION(IsLastChild(prevKidFrame), "unexpected last child"); - SetLastContentOffset(prevKidFrame); - -#ifdef NS_DEBUG - VerifyLastIsComplete(); -#endif -#ifdef NOISY - ListTag(stdout); - printf(": reflow mapped %sok (childCount=%d) [%d,%d,%c]\n", - (result ? "" : "NOT "), - mChildCount, - mFirstContentOffset, mLastContentOffset, - (mLastContentIsComplete ? 'T' : 'F')); -#ifdef NOISY_FLOW - { - ColumnFrame* flow = (ColumnFrame*) mNextInFlow; - while (flow != 0) { - printf(" %p: [%d,%d,%c]\n", - flow, flow->mFirstContentOffset, flow->mLastContentOffset, - (flow->mLastContentIsComplete ? 'T' : 'F')); - flow = (ColumnFrame*) flow->mNextInFlow; - } - } -#endif -#endif - return result; -} - -/** - * Try and pull-up frames from our next-in-flow - * - * @param aPresContext presentation context to use - * @param aState current inline state - * @return true if we successfully pulled-up all the children and false - * otherwise, e.g. child didn't fit - */ -PRBool ColumnFrame::PullUpChildren(nsIPresContext* aPresContext, - ColumnReflowState& aState, - nsSize* aMaxElementSize) -{ -#ifdef NS_DEBUG - VerifyLastIsComplete(); -#endif -#ifdef NOISY - ListTag(stdout); - printf(": pullup (childCount=%d) [%d,%d,%c]\n", - mChildCount, - mFirstContentOffset, mLastContentOffset, - (mLastContentIsComplete ? 'T' : 'F')); -#ifdef NOISY_FLOW - { - ColumnFrame* flow = (ColumnFrame*) mNextInFlow; - while (flow != 0) { - printf(" %p: [%d,%d,%c]\n", - flow, flow->mFirstContentOffset, flow->mLastContentOffset, - (flow->mLastContentIsComplete ? 'T' : 'F')); - flow = (ColumnFrame*) flow->mNextInFlow; - } - } -#endif -#endif - NS_PRECONDITION(nsnull != mNextInFlow, "null next-in-flow"); - ColumnFrame* nextInFlow = (ColumnFrame*)mNextInFlow; - nsSize kidMaxElementSize; - nsSize* pKidMaxElementSize = (nsnull != aMaxElementSize) ? &kidMaxElementSize : nsnull; - - // The frame previous to the current frame we are reflowing. This - // starts out initially as our last frame. - nsIFrame* prevKidFrame; - - LastChild(prevKidFrame); - - // This will hold the prevKidFrame's mLastContentIsComplete - // status. If we have to push the frame that follows prevKidFrame - // then this will become our mLastContentIsComplete state. Since - // prevKidFrame is initially our last frame, it's completion status - // is our mLastContentIsComplete value. - PRBool prevLastContentIsComplete = mLastContentIsComplete; - PRBool result = PR_TRUE; - - while (nsnull != nextInFlow) { - nsRect kidRect; - nsSize kidAvailSize(aState.availSize); - - // Get first available frame from the next-in-flow - nsIFrame* kidFrame = PullUpOneChild(nextInFlow, prevKidFrame); - if (nsnull == kidFrame) { - // We've pulled up all the children from that next-in-flow, so - // move to the next next-in-flow. - nextInFlow = (ColumnFrame*) nextInFlow->mNextInFlow; - continue; - } - - // Get top margin for this kid - nsIStyleContextPtr kidSC; - - kidFrame->GetStyleContext(aPresContext, kidSC.AssignRef()); - nsStyleSpacing* kidSpacing = (nsStyleSpacing*) - kidSC->GetData(kStyleSpacingSID); - nsMargin kidMargin; - kidSpacing->CalcMarginFor(kidFrame, kidMargin); - nscoord topMargin = GetTopMarginFor(aPresContext, aState, - kidFrame, kidMargin); - - // XXX Style system should do this... - nscoord bottomMargin = ChildIsPseudoFrame(kidFrame) - ? 0 - : kidMargin.bottom; - - // Figure out the amount of available size for the child (subtract - // off the top margin we are going to apply to it) - // - // Note: don't subtract off for the child's left/right margins. ReflowChild() - // will do that when it determines the current left/right edge - if (PR_FALSE == aState.unconstrainedHeight) { - kidAvailSize.height -= topMargin; - } - - ReflowStatus status; - do { - // Only skip the reflow if this is not our first child and we are - // out of space. - if ((kidFrame == mFirstChild) || (kidAvailSize.height > 0)) { - aState.spaceManager->Translate(0, topMargin); - status = ReflowChild(kidFrame, aPresContext, aState.spaceManager, - kidAvailSize, kidRect, pKidMaxElementSize); - aState.spaceManager->Translate(0, -topMargin); - } - - // Did the child fit? - if ((kidFrame != mFirstChild) && - ((kidAvailSize.height <= 0) || - (kidRect.YMost() > kidAvailSize.height))) - { - // The child's height is too big to fit at all in our remaining space, - // and it wouldn't have been our first child. - // - // Note that if the width is too big that's okay and we allow the - // child to extend horizontally outside of the reflow area - nsIFrame* kidNextInFlow; - - kidFrame->GetNextInFlow(kidNextInFlow); - PRBool lastComplete = PRBool(nsnull == kidNextInFlow); - PushChildren(kidFrame, prevKidFrame, lastComplete); - mLastContentIsComplete = prevLastContentIsComplete; - mChildCount--; - result = PR_FALSE; - goto push_done; - } - - // Place the child - aState.y += topMargin; - aState.spaceManager->Translate(0, topMargin); - kidRect.x += kidMargin.left; - kidRect.y += aState.y; - PlaceChild(aPresContext, aState, kidFrame, kidMargin, - kidRect, aMaxElementSize, kidMaxElementSize); - if (bottomMargin < 0) { - aState.prevMaxNegBottomMargin = -bottomMargin; - } else { - aState.prevMaxPosBottomMargin = bottomMargin; - } - mLastContentIsComplete = PRBool(status == frComplete); - -#ifdef NOISY - ListTag(stdout); - printf(": pulled up "); - ((nsFrame*)kidFrame)->ListTag(stdout); - printf("\n"); -#endif - - // Is the child we just pulled up complete? - if (frNotComplete == status) { - // No the child isn't complete. - nsIFrame* kidNextInFlow; - - kidFrame->GetNextInFlow(kidNextInFlow); - if (nsnull == kidNextInFlow) { - // The child doesn't have a next-in-flow so create a - // continuing frame. The creation appends it to the flow and - // prepares it for reflow. - nsIFrame* continuingFrame; - - kidFrame->CreateContinuingFrame(aPresContext, this, continuingFrame); - - // Add the continuing frame to our sibling list. - nsIFrame* kidNextSibling; - - kidFrame->GetNextSibling(kidNextSibling); - continuingFrame->SetNextSibling(kidNextSibling); - kidFrame->SetNextSibling(continuingFrame); - prevKidFrame = kidFrame; - prevLastContentIsComplete = mLastContentIsComplete; - kidFrame = continuingFrame; - mChildCount++; - } else { - // The child has a next-in-flow, but it's not one of ours. - // It *must* be in one of our next-in-flows. Collect it - // then. - NS_ASSERTION(!IsChild(kidNextInFlow), "busted kid next-in-flow"); - break; - } - } - } while (frNotComplete == status); - - prevKidFrame = kidFrame; - prevLastContentIsComplete = mLastContentIsComplete; - } - - push_done:; - // Update our last content index - if (nsnull != prevKidFrame) { - NS_ASSERTION(IsLastChild(prevKidFrame), "bad last child"); - SetLastContentOffset(prevKidFrame); - } - - // We need to make sure the first content offset is correct for any empty - // next-in-flow frames (frames where we pulled up all the child frames) - nextInFlow = (ColumnFrame*)mNextInFlow; - if ((nsnull != nextInFlow) && (nsnull == nextInFlow->mFirstChild)) { - // We have at least one empty frame. Did we succesfully pull up all the - // child frames? - if (PR_FALSE == result) { - // No, so we need to adjust the first content offset of all the empty - // frames - AdjustOffsetOfEmptyNextInFlows(); -#ifdef NS_DEBUG - } else { - // Yes, we successfully pulled up all the child frames which means all - // the next-in-flows must be empty. Do a sanity check - while (nsnull != nextInFlow) { - NS_ASSERTION(nsnull == nextInFlow->mFirstChild, "non-empty next-in-flow"); - nextInFlow->GetNextInFlow((nsIFrame*&)nextInFlow); - } -#endif - } - } - -#ifdef NS_DEBUG - PRInt32 len = LengthOf(mFirstChild); - NS_ASSERTION(len == mChildCount, "bad child count"); - VerifyLastIsComplete(); -#endif -#ifdef NOISY - ListTag(stdout); - printf(": pullup %sok (childCount=%d) [%d,%d,%c]\n", - (result ? "" : "NOT "), - mChildCount, - mFirstContentOffset, mLastContentOffset, - (mLastContentIsComplete ? 'T' : 'F')); -#ifdef NOISY_FLOW - { - ColumnFrame* flow = (ColumnFrame*) mNextInFlow; - while (flow != 0) { - printf(" %p: [%d,%d,%c]\n", - flow, flow->mFirstContentOffset, flow->mLastContentOffset, - (flow->mLastContentIsComplete ? 'T' : 'F')); - flow = (ColumnFrame*) flow->mNextInFlow; - } - } -#endif -#endif - return result; -} - -/** - * Create new frames for content we haven't yet mapped - * - * @param aPresContext presentation context to use - * @param aState current inline state - * @return frComplete if all content has been mapped and frNotComplete - * if we should be continued - */ -nsIFrame::ReflowStatus -ColumnFrame::ReflowUnmappedChildren(nsIPresContext* aPresContext, - ColumnReflowState& aState, - nsSize* aMaxElementSize) -{ -#ifdef NS_DEBUG - VerifyLastIsComplete(); -#endif - nsIFrame* kidPrevInFlow = nsnull; - ReflowStatus result = frNotComplete; - - // If we have no children and we have a prev-in-flow then we need to pick - // up where it left off. If we have children, e.g. we're being resized, then - // our content offset should already be set correctly... - if ((nsnull == mFirstChild) && (nsnull != mPrevInFlow)) { - ColumnFrame* prev = (ColumnFrame*)mPrevInFlow; - NS_ASSERTION(prev->mLastContentOffset >= prev->mFirstContentOffset, "bad prevInFlow"); - - mFirstContentOffset = prev->NextChildOffset(); - if (!prev->mLastContentIsComplete) { - // Our prev-in-flow's last child is not complete - prev->LastChild(kidPrevInFlow); - } - } - - // Place our children, one at a time, until we are out of children - nsSize kidMaxElementSize; - nsSize* pKidMaxElementSize = (nsnull != aMaxElementSize) ? &kidMaxElementSize : nsnull; - PRInt32 kidIndex = NextChildOffset(); - nsIFrame* prevKidFrame; - - LastChild(prevKidFrame); // XXX remember this... - - for (;;) { - // Get the next content object - nsIContentPtr kid = mContent->ChildAt(kidIndex); - if (kid.IsNull()) { - result = frComplete; - break; - } - - // Make sure we still have room left - if (aState.availSize.height <= 0) { - // Note: return status was set to frNotComplete above... - break; - } - - // Resolve style - nsIStyleContextPtr kidStyleContext = - aPresContext->ResolveStyleContextFor(kid, this); - nsStyleSpacing* kidSpacing = (nsStyleSpacing*) - kidStyleContext->GetData(kStyleSpacingSID); - nsStyleDisplay* kidDisplay = (nsStyleDisplay*) - kidStyleContext->GetData(kStyleDisplaySID); - nsStylePosition* kidPosition = (nsStylePosition*) - kidStyleContext->GetData(kStylePositionSID); - - nsBlockFrame* pseudoFrame = nsnull; - nsIFrame* kidFrame; - nsRect kidRect; - ReflowStatus status; - - // Create a child frame - if (NS_STYLE_POSITION_ABSOLUTE == kidPosition->mPosition) { - AbsoluteFrame::NewFrame(&kidFrame, kid, kidIndex, this); - kidFrame->SetStyleContext(aPresContext,kidStyleContext); - } else if (nsnull == kidPrevInFlow) { - // Figure out how to treat the content - nsIContentDelegate* kidDel = nsnull; - switch (kidDisplay->mDisplay) { - case NS_STYLE_DISPLAY_NONE: - // Create a placeholder frame that takes up no space - NS_ASSERTION(nsnull == kidPrevInFlow, "bad prev in flow"); - nsFrame::NewFrame(&kidFrame, kid, kidIndex, this); - break; - - case NS_STYLE_DISPLAY_BLOCK: - case NS_STYLE_DISPLAY_LIST_ITEM: - // Get the content delegate to use. We'll need this to create a frame - kidDel = kid->GetDelegate(aPresContext); - kidFrame = kidDel->CreateFrame(aPresContext, kid, kidIndex, this); - NS_RELEASE(kidDel); - break; - - case NS_STYLE_DISPLAY_INLINE: - // Inline elements are wrapped in a block pseudo frame; that way the - // body doesn't have to deal with 2D layout - nsBlockFrame::NewFrame(&kidFrame, mContent, mIndexInParent, this); - - // Set the content offset for the pseudo frame, so it knows - // which content to begin with - pseudoFrame = (nsBlockFrame*) kidFrame; - pseudoFrame->SetFirstContentOffset(kidIndex); - break; - } - kidFrame->SetStyleContext(aPresContext,kidStyleContext); - } else { - kidPrevInFlow->CreateContinuingFrame(aPresContext, this, kidFrame); - if (ChildIsPseudoFrame(kidFrame)) { - pseudoFrame = (nsBlockFrame*) kidFrame; - } - } - - // Get the child's margins - nsMargin kidMargin; - kidSpacing->CalcMarginFor(kidFrame, kidMargin); - nscoord topMargin = GetTopMarginFor(aPresContext, aState, - kidFrame, kidMargin); - - // XXX Style system should do this... - nscoord bottomMargin = ChildIsPseudoFrame(kidFrame) - ? 0 - : kidMargin.bottom; - - // Link the child frame into the list of children and update the - // child count - if (nsnull != prevKidFrame) { -#ifdef NS_DEBUG - nsIFrame* prevNextSibling; - - prevKidFrame->GetNextSibling(prevNextSibling); - NS_ASSERTION(nsnull == prevNextSibling, "bad append"); -#endif - prevKidFrame->SetNextSibling(kidFrame); - } else { - NS_ASSERTION(nsnull == mFirstChild, "bad create"); - mFirstChild = kidFrame; - SetFirstContentOffset(kidFrame); - } - mChildCount++; - - do { - nsSize kidAvailSize(aState.availSize); - - // Figure out the amount of available size for the child (subtract - // off the margin we are going to apply to it) - // - // Note: don't subtract off for the child's left/right margins. ReflowChild() - // will do that when it determines the current left/right edge - if (PR_FALSE == aState.unconstrainedHeight) { - kidAvailSize.height -= topMargin; - } - - // Try to reflow the child into the available space. It might not - // fit or might need continuing - if (kidAvailSize.height > 0) { - aState.spaceManager->Translate(0, topMargin); - status = ReflowChild(kidFrame, aPresContext, aState.spaceManager, - kidAvailSize, kidRect, pKidMaxElementSize); - aState.spaceManager->Translate(0, -topMargin); - } - - // Did the child fit? - if ((kidFrame != mFirstChild) && - ((kidAvailSize.height <= 0) || - (kidRect.YMost() > kidAvailSize.height))) { - // The child's height is too big to fit in our remaining - // space, and it's not our first child. - NS_ASSERTION(nsnull == mOverflowList, "bad overflow list"); - NS_ASSERTION(nsnull == mNextInFlow, "whoops"); - - // Chop off the part of our child list that's being overflowed -#ifdef NS_DEBUG - nsIFrame* prevNextSibling; - - prevKidFrame->GetNextSibling(prevNextSibling); - NS_ASSERTION(prevNextSibling == kidFrame, "bad list"); -#endif - prevKidFrame->SetNextSibling(nsnull); - - // Create overflow list - mOverflowList = kidFrame; - - // Fixup child count by subtracting off the number of children - // that just ended up on the reflow list. - PRInt32 overflowKids = 0; - nsIFrame* f = kidFrame; - while (nsnull != f) { - overflowKids++; - f->GetNextSibling(f); - } - mChildCount -= overflowKids; - goto done; - } - - // Advance y by the topMargin between children. Zero out the - // topMargin in case this frame is continued because - // continuations do not have a top margin. Update the prev - // bottom margin state in the body reflow state so that we can - // apply the bottom margin when we hit the next child (or - // finish). - aState.y += topMargin; - aState.spaceManager->Translate(0, topMargin); - kidRect.x += kidMargin.left; - kidRect.y += aState.y; - PlaceChild(aPresContext, aState, kidFrame, kidMargin, - kidRect, aMaxElementSize, kidMaxElementSize); - if (bottomMargin < 0) { - aState.prevMaxNegBottomMargin = -bottomMargin; - } else { - aState.prevMaxPosBottomMargin = bottomMargin; - } - topMargin = 0; - - mLastContentIsComplete = PRBool(status == frComplete); - if (frNotComplete == status) { - // Child didn't complete so create a continuing frame - kidPrevInFlow = kidFrame; - nsIFrame* continuingFrame; - - kidFrame->CreateContinuingFrame(aPresContext, this, continuingFrame); - - // Add the continuing frame to the sibling list - nsIFrame* kidNextSibling; - - kidFrame->GetNextSibling(kidNextSibling); - continuingFrame->SetNextSibling(kidNextSibling); - kidFrame->SetNextSibling(continuingFrame); - prevKidFrame = kidFrame; - kidFrame = continuingFrame; - mChildCount++; - - if (nsnull != pseudoFrame) { - pseudoFrame = (nsBlockFrame*) kidFrame; - } - } - } while (frNotComplete == status); - - prevKidFrame = kidFrame; - kidPrevInFlow = nsnull; - - // Update the kidIndex - if (nsnull != pseudoFrame) { - // Adjust kidIndex to reflect the number of children mapped by - // the pseudo frame - kidIndex = pseudoFrame->NextChildOffset(); - } else { - kidIndex++; - } - } - -done: - // Update the content mapping - NS_ASSERTION(IsLastChild(prevKidFrame), "bad last child"); - if (0 != mChildCount) { - SetLastContentOffset(prevKidFrame); - } -#ifdef NS_DEBUG - PRInt32 len = LengthOf(mFirstChild); - NS_ASSERTION(len == mChildCount, "bad child count"); - VerifyLastIsComplete(); -#endif - return result; -} - -NS_METHOD ColumnFrame::ResizeReflow(nsIPresContext* aPresContext, - nsISpaceManager* aSpaceManager, - const nsSize& aMaxSize, - nsRect& aDesiredRect, - nsSize* aMaxElementSize, - ReflowStatus& aStatus) -{ -#ifdef NS_DEBUG - PreReflowCheck(); - - nscoord txIn, tyIn; - aSpaceManager->GetTranslation(txIn, tyIn); -#endif - //XXX NS_PRECONDITION((aMaxSize.width > 0) && (aMaxSize.height > 0), "unexpected max size"); - - PRBool reflowMappedOK = PR_TRUE; - - aStatus = frComplete; // initialize out parameter - - // Initialize out parameter - if (nsnull != aMaxElementSize) { - aMaxElementSize->width = 0; - aMaxElementSize->height = 0; - } - - // Initialize body reflow state - ColumnReflowState state(aPresContext, aSpaceManager, aMaxSize); - - // Check for an overflow list - MoveOverflowToChildList(); - - // Reflow the existing frames - if (nsnull != mFirstChild) { - reflowMappedOK = - ReflowMappedChildren(aPresContext, state, aMaxElementSize); - if (PR_FALSE == reflowMappedOK) { - aStatus = frNotComplete; - } - } - - // Did we successfully relow our mapped children? - if (PR_TRUE == reflowMappedOK) { - // Any space left? - if ((nsnull != mFirstChild) && (state.availSize.height <= 0)) { - // No space left. Don't try to pull-up children or reflow unmapped - if (NextChildOffset() < mContent->ChildCount()) { - aStatus = frNotComplete; - } - } else if (NextChildOffset() < mContent->ChildCount()) { - // Try and pull-up some children from a next-in-flow - if ((nsnull == mNextInFlow) || - PullUpChildren(aPresContext, state, aMaxElementSize)) { - // If we still have unmapped children then create some new frames - if (NextChildOffset() < mContent->ChildCount()) { - aStatus = - ReflowUnmappedChildren(aPresContext, state, aMaxElementSize); - } - } else { - // We were unable to pull-up all the existing frames from the - // next in flow - aStatus = frNotComplete; - } - } - } - - // Restore the coordinate space - aSpaceManager->Translate(0, -state.y); - - if (frComplete == aStatus) { - // Don't forget to add in the bottom margin from our last child. - // Only add it in if there's room for it. - nscoord margin = state.prevMaxPosBottomMargin - - state.prevMaxNegBottomMargin; - if (state.availSize.height >= margin) { - state.y += margin; - } - } - - // Return our desired rect - aDesiredRect.x = 0; - aDesiredRect.y = 0; - aDesiredRect.width = state.kidXMost; - aDesiredRect.height = state.y; - - // Our desired width is always at least as big as our parent's width - // even though we reflowed our children to a narrower width. - if (!state.unconstrainedWidth && (aDesiredRect.width < aMaxSize.width)) { - aDesiredRect.width = aMaxSize.width; - } - -#ifdef NS_DEBUG - PostReflowCheck(aStatus); - - // Verify we properly restored the coordinate space - nscoord txOut, tyOut; - - aSpaceManager->GetTranslation(txOut, tyOut); - NS_POSTCONDITION((txIn == txOut) && (tyIn == tyOut), "bad translation"); -#endif - return NS_OK; -} - -NS_METHOD ColumnFrame::IncrementalReflow(nsIPresContext* aPresContext, - nsISpaceManager* aSpaceManager, - const nsSize& aMaxSize, - nsRect& aDesiredRect, - nsReflowCommand& aReflowCommand, - ReflowStatus& aStatus) -{ -#ifdef NS_DEBUG - nscoord txIn, tyIn; - aSpaceManager->GetTranslation(txIn, tyIn); -#endif - - // Initialize our reflow state - ColumnReflowState state(aPresContext, aSpaceManager, aMaxSize); - - // XXX This nees to be computed the hard way. This value will be - // wrong because it includes our previous border+padding - // values. Since those values may have changed we need to - // recalculate our maxChildWidth based on our children and then we - // can add back in order border+padding - state.kidXMost = mRect.width; - - nsIFrame* target = aReflowCommand.GetTarget(); - if (this == target) { - if (aReflowCommand.GetType() == nsReflowCommand::FrameAppended) { - nsIFrame* prevKidFrame; - LastChild(prevKidFrame); - - // Factor in the previous kid's bottom margin information - if (nsnull != prevKidFrame) { - // When we have a previous kid frame, get it's y most coordinate - // and then setup the state so that the starting y is correct - // and the previous kid's bottom margin information is correct. - nsRect startKidRect; - prevKidFrame->GetRect(startKidRect); - - // Get style info - nsStyleSpacing* prevKidSpacing; - prevKidFrame->GetStyleData(kStyleSpacingSID, (nsStyleStruct*&)prevKidSpacing); - nsMargin kidMargin; - prevKidSpacing->CalcMarginFor(prevKidFrame, prevKidMargin); - - // XXX Style system should do this... - nscoord bottomMargin = ChildIsPseudoFrame(prevKidFrame) - ? 0 - : prevKidMargin.bottom; - - state.y = startKidRect.YMost(); - if (bottomMargin < 0) { - state.prevMaxNegBottomMargin = -bottomMargin; - } else { - state.prevMaxPosBottomMargin = bottomMargin; - } - - if (PR_FALSE == state.unconstrainedHeight) { - state.availSize.height -= state.y; - } - } - - aSpaceManager->Translate(0, state.y); - - // Now reflow unmapped children - aStatus = ReflowUnmappedChildren(aPresContext, state, nsnull); - - // Restore the coordinate space - aSpaceManager->Translate(0, -state.y); - - } else { - NS_NOTYETIMPLEMENTED("unexpected reflow command"); - } - } else if (ChildIsPseudoFrame(target)) { - if (aReflowCommand.GetType() == nsReflowCommand::FrameAppended) { - // Because our last child is a pseudo-frame we passed along the content - // appended notification. First let the pseudo-frame reflow unmapped, - // and then we'll reflow unmapped - nsRect kidRect; - - // Restore our state's running y-offset and available size - target->GetRect(kidRect); - state.y = kidRect.y; - if (PR_FALSE == state.unconstrainedHeight) { - state.availSize.height -= state.y; - } - - nsIRunaround* reflowRunaround; - nsSize kidAvailSize(state.availSize); - - aSpaceManager->Translate(0, state.y); - target->QueryInterface(kIRunaroundIID, (void**)&reflowRunaround); - reflowRunaround->IncrementalReflow(aPresContext, aSpaceManager, - kidAvailSize, kidRect, aReflowCommand, aStatus); - - // Place and size the child - nsSize kidMaxElementSize; - nsStyleSpacing* kidSpacing; - - target->GetStyleData(kStyleSpacingSID, (nsStyleStruct*&)kidSpacing); - nsMargin kidMargin; - kidSpacing->CalcMarginFor(target, kidMargin); - PlaceChild(aPresContext, state, target, kidMargin, kidRect, - nsnull, kidMaxElementSize); - - // Set our last content offset - SetLastContentOffset(target); - - // If the child's status is complete then reflow unmapped children - if (frComplete == aStatus) { - aStatus = ReflowUnmappedChildren(aPresContext, state, nsnull); - } - - aSpaceManager->Translate(0, -state.y); - - } else { - NS_NOTYETIMPLEMENTED("unexpected reflow command"); - } - } else { - NS_NOTYETIMPLEMENTED("unexpected reflow command"); - } - - // Return our desired size - // XXX What about adding in the bottom margin from our last child like we - // did in ResizeReflow()? - aDesiredRect.x = 0; - aDesiredRect.y = 0; - aDesiredRect.width = state.kidXMost;/* XXX */ - aDesiredRect.height = state.y; - -#ifdef NS_DEBUG - // Verify we properly restored the coordinate space - nscoord txOut, tyOut; - - aSpaceManager->GetTranslation(txOut, tyOut); - NS_POSTCONDITION((txIn == txOut) && (tyIn == tyOut), "bad translation"); -#endif - return NS_OK; -} - -NS_METHOD ColumnFrame::ContentAppended(nsIPresShell* aShell, - nsIPresContext* aPresContext, - nsIContent* aContainer) -{ - // Get the last-in-flow - ColumnFrame* lastInFlow = (ColumnFrame*)GetLastInFlow(); - - // Get the last child frame, and see if it's a pseudo frame - nsIFrame* lastKidFrame; - LastChild(lastKidFrame); - - if ((nsnull != lastKidFrame) && ChildIsPseudoFrame(lastKidFrame)) { - // Pass along the notification to the pseudo frame - return lastKidFrame->ContentAppended(aShell, aPresContext, aContainer); - - } else { - // Generate a reflow command for the last-in-flow - nsReflowCommand* cmd = new nsReflowCommand(aPresContext, lastInFlow, - nsReflowCommand::FrameAppended); - aShell->AppendReflowCommand(cmd); - return NS_OK; - } -} - -NS_METHOD ColumnFrame::CreateContinuingFrame(nsIPresContext* aPresContext, - nsIFrame* aParent, - nsIFrame*& aContinuingFrame) -{ - ColumnFrame* cf = new ColumnFrame(mContent, mIndexInParent, aParent); - PrepareContinuingFrame(aPresContext, aParent, cf); - aContinuingFrame = cf; - return NS_OK; -} - -PRIntn ColumnFrame::GetSkipSides() const -{ - // Because we're only ever used as a pseudo frame we shouldn't have any borders - // or padding. But just to be safe... - return 0x0F; -} - -NS_METHOD ColumnFrame::ListTag(FILE* out) const -{ - fprintf(out, "*COLUMN@%p", this); - return NS_OK; -} - diff --git a/mozilla/layout/html/base/src/nsColumnFrame.h b/mozilla/layout/html/base/src/nsColumnFrame.h deleted file mode 100644 index c432801e257..00000000000 --- a/mozilla/layout/html/base/src/nsColumnFrame.h +++ /dev/null @@ -1,90 +0,0 @@ -/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- - * - * The contents of this file are subject to the Netscape Public License - * Version 1.0 (the "NPL"); you may not use this file except in - * compliance with the NPL. You may obtain a copy of the NPL at - * http://www.mozilla.org/NPL/ - * - * Software distributed under the NPL is distributed on an "AS IS" basis, - * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL - * for the specific language governing rights and limitations under the - * NPL. - * - * The Initial Developer of this code under the NPL is Netscape - * Communications Corporation. Portions created by Netscape are - * Copyright (C) 1998 Netscape Communications Corporation. All Rights - * Reserved. - */ -#ifndef nsColumnFrame_h___ -#define nsColumnFrame_h___ - -#include "nsHTMLContainerFrame.h" -#include "nsIRunaround.h" - -struct ColumnReflowState; - -class ColumnFrame : public nsHTMLContainerFrame, public nsIRunaround { -public: - ColumnFrame(nsIContent* aContent, - PRInt32 aIndexInParent, - nsIFrame* aParentFrame); - - NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr); - - NS_IMETHOD ResizeReflow(nsIPresContext* aPresContext, - nsISpaceManager* aSpaceManager, - const nsSize& aMaxSize, - nsRect& aDesiredRect, - nsSize* aMaxElementSize, - ReflowStatus& aStatus); - - NS_IMETHOD IncrementalReflow(nsIPresContext* aPresContext, - nsISpaceManager* aSpaceManager, - const nsSize& aMaxSize, - nsRect& aDesiredRect, - nsReflowCommand& aReflowCommand, - ReflowStatus& aStatus); - - NS_IMETHOD CreateContinuingFrame(nsIPresContext* aPresContext, - nsIFrame* aParent, - nsIFrame*& aContinuingFrame); - - NS_IMETHOD ColumnFrame::ContentAppended(nsIPresShell* aShell, - nsIPresContext* aPresContext, - nsIContent* aContainer); - - // Debugging - NS_IMETHOD ListTag(FILE* out = stdout) const; - -protected: - ~ColumnFrame(); - - virtual PRIntn GetSkipSides() const; - - nscoord GetTopMarginFor(nsIPresContext* aCX, - ColumnReflowState& aState, - nsIFrame* aKidFrame, - const nsMargin& aKidMargin); - - void PlaceChild(nsIPresContext* aPresContext, - ColumnReflowState& aState, - nsIFrame* aKidFrame, - const nsMargin& aKidMargin, - const nsRect& aKidRect, - nsSize* aMaxElementSize, - nsSize& aKidMaxElementSize); - - PRBool ReflowMappedChildren(nsIPresContext* aPresContext, - ColumnReflowState& aState, - nsSize* aMaxElementSize); - - PRBool PullUpChildren(nsIPresContext* aPresContext, - ColumnReflowState& aState, - nsSize* aMaxElementSize); - - ReflowStatus ReflowUnmappedChildren(nsIPresContext* aPresContext, - ColumnReflowState& aState, - nsSize* aMaxElementSize); -}; - -#endif /* nsColumnFrame_h___ */