зеркало из https://github.com/mozilla/pjs.git
141 строка
3.6 KiB
C++
141 строка
3.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
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* the License for the specific language governing rights and limitations
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* under the License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are Copyright (C) 1998
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* Netscape Communications Corporation. All Rights Reserved.
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*/
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#include "nsLineLayout.h"
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#include "nsInlineReflow.h"
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#include "nsCSSLayout.h"
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#include "nsStyleConsts.h"
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#include "nsIStyleContext.h"
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#include "nsIPresContext.h"
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#include "nsIFontMetrics.h"
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void
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nsTextRun::List(FILE* out, PRInt32 aIndent)
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{
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PRInt32 i;
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for (i = aIndent; --i >= 0; ) fputs(" ", out);
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PRInt32 n = mArray.Count();
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fprintf(out, "%p: count=%d <", this, n);
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for (i = 0; i < n; i++) {
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nsIFrame* text = (nsIFrame*) mArray.ElementAt(i);
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text->ListTag(out);
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printf(" ");
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}
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fputs(">\n", out);
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}
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//----------------------------------------------------------------------
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nsLineLayout::nsLineLayout(nsIPresContext& aPresContext,
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nsISpaceManager* aSpaceManager)
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: mPresContext(aPresContext)
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{
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mSpaceManager = aSpaceManager;
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mListPositionOutside = PR_FALSE;
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mLineNumber = 0;
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// mLeftEdge = 0;
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mColumn = 0;
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mSkipLeadingWS = PR_TRUE;
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mTextRuns = nsnull;
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ResetTextRuns();
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}
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nsLineLayout::~nsLineLayout()
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{
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nsTextRun::DeleteTextRuns(mTextRuns);
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}
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void
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nsLineLayout::ResetTextRuns()
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{
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nsTextRun::DeleteTextRuns(mTextRuns);
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mTextRuns = nsnull;
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mTextRunP = &mTextRuns;
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mNewTextRun = nsnull;
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}
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nsTextRun*
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nsLineLayout::TakeTextRuns()
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{
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nsTextRun* result = mTextRuns;
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mTextRuns = nsnull;
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ResetTextRuns();
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return result;
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}
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void
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nsLineLayout::EndTextRun()
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{
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mNewTextRun = nsnull;
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}
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nsresult
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nsLineLayout::AddText(nsIFrame* aTextFrame)
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{
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if (nsnull == mNewTextRun) {
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mNewTextRun = new nsTextRun();
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if (nsnull == mNewTextRun) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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*mTextRunP = mNewTextRun;
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mTextRunP = &mNewTextRun->mNext;
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}
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mNewTextRun->mArray.AppendElement(aTextFrame);
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return NS_OK;/* XXX */
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}
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// XXX move this somewhere else!!!
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PRBool
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nsLineLayout::TreatFrameAsBlock(const nsStyleDisplay* aDisplay,
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const nsStylePosition* aPosition)
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{
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if (NS_STYLE_POSITION_ABSOLUTE == aPosition->mPosition) {
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return PR_FALSE;
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}
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if (NS_STYLE_FLOAT_NONE != aDisplay->mFloats) {
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return PR_FALSE;
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}
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switch (aDisplay->mDisplay) {
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case NS_STYLE_DISPLAY_BLOCK:
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case NS_STYLE_DISPLAY_LIST_ITEM:
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case NS_STYLE_DISPLAY_TABLE:
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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void
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nsLineLayout::UpdateInlines(nscoord aX, nscoord aY,
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nscoord aWidth, nscoord aHeight,
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PRBool aIsLeftFloater)
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{
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PRInt32 i, n = mInlineStack.Count();
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for (i = 0; i < n; i++) {
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nsInlineReflow* ir = (nsInlineReflow*) mInlineStack[i];
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ir->UpdateBand(aX, aY, aWidth, aHeight, aIsLeftFloater);
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// After the first inline is updated the remainder are relative to
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// their parent therefore zap the x,y coordinates.
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// XXX border/padding adjustments need to be re-applied for inlines
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aX = 0;
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aY = 0;
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}
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}
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