зеркало из https://github.com/mozilla/gecko-dev.git
331 строка
9.5 KiB
C++
331 строка
9.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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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 1.1 (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" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsCOMPtr.h"
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#include "nsTableColFrame.h"
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#include "nsContainerFrame.h"
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#include "nsIStyleContext.h"
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#include "nsStyleConsts.h"
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#include "nsIPresContext.h"
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#include "nsHTMLAtoms.h"
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#include "nsCSSRendering.h"
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#include "nsLayoutAtoms.h"
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#include "nsIContent.h"
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#include "nsIDOMHTMLTableColElement.h"
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#define COL_TYPE_BITS 0xF0000000 // uses bits 29-32 from mState
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#define COL_TYPE_OFFSET 28
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#define COL_ANONYMOUS_BIT 0x08000000 // uses bit 28
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#define COL_ANONYMOUS_OFFSET 27
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#define COL_CONSTRAINT_BITS 0x07000000 // uses bits 25-27
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#define COL_CONSTRAINT_OFFSET 24
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nsTableColFrame::nsTableColFrame()
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: nsFrame()
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{
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SetIsAnonymous(PR_FALSE);
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SetType(eColContent);
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ResetSizingInfo();
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}
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nsTableColFrame::~nsTableColFrame()
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{
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}
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nsTableColType
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nsTableColFrame::GetType() const
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{
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return (nsTableColType)((mState & COL_TYPE_BITS) >> COL_TYPE_OFFSET);
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}
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void
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nsTableColFrame::SetType(nsTableColType aType)
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{
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PRUint32 type = aType - eColContent;
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mState |= (type << COL_TYPE_OFFSET);
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}
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nsColConstraint
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nsTableColFrame::GetConstraint() const
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{
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return (nsColConstraint)((mState & COL_CONSTRAINT_BITS) >> COL_CONSTRAINT_OFFSET);
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}
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void
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nsTableColFrame::SetConstraint(nsColConstraint aConstraint)
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{
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PRUint32 con = aConstraint - eNoConstraint;
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mState |= (con << COL_CONSTRAINT_OFFSET);
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}
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PRBool
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nsTableColFrame::IsAnonymous()
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{
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return ((mState & COL_ANONYMOUS_BIT) > 0);
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}
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void
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nsTableColFrame::SetIsAnonymous(PRBool aIsAnonymous)
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{
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PRUint32 anon = (aIsAnonymous) ? 1 : 0;
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mState |= (anon << COL_ANONYMOUS_OFFSET);
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}
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// XXX what about other style besides width
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nsStyleCoord nsTableColFrame::GetStyleWidth() const
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{
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nsStylePosition* position = nsnull;
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position = (nsStylePosition*)mStyleContext->GetStyleData(eStyleStruct_Position);
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nsStyleCoord styleWidth = position->mWidth;
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// the following should not be necessary since html.css defines table-col and
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// :table-col to inherit. However, :table-col is not inheriting properly
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if (eStyleUnit_Auto == styleWidth.GetUnit() ||
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eStyleUnit_Inherit == styleWidth.GetUnit()) {
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nsIFrame* parent;
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GetParent(&parent);
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nsCOMPtr<nsIStyleContext> styleContext;
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parent->GetStyleContext(getter_AddRefs(styleContext));
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if (styleContext) {
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position = (nsStylePosition*)styleContext->GetStyleData(eStyleStruct_Position);
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styleWidth = position->mWidth;
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}
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}
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nsStyleCoord returnWidth;
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returnWidth.mUnit = styleWidth.mUnit;
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returnWidth.mValue = styleWidth.mValue;
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return returnWidth;
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}
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void nsTableColFrame::ResetSizingInfo()
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{
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memset(mWidths, WIDTH_NOT_SET, NUM_WIDTHS * sizeof(PRInt32));
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SetConstraint(eNoConstraint);
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}
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NS_METHOD
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nsTableColFrame::Paint(nsIPresContext* aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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nsFramePaintLayer aWhichLayer,
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PRUint32 aFlags)
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{
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PRBool isVisible;
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if (NS_SUCCEEDED(IsVisibleForPainting(aPresContext, aRenderingContext, PR_FALSE, &isVisible)) && !isVisible) {
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return NS_OK;
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}
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// Standards mode background painting removed. See bug 4510
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return NS_OK;
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}
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// override, since we want to act like a block
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NS_IMETHODIMP
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nsTableColFrame::GetFrameForPoint(nsIPresContext* aPresContext,
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const nsPoint& aPoint,
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nsFramePaintLayer aWhichLayer,
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nsIFrame** aFrame)
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{
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return NS_ERROR_FAILURE;
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}
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NS_METHOD nsTableColFrame::Reflow(nsIPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus)
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{
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DO_GLOBAL_REFLOW_COUNT("nsTableColFrame", aReflowState.reason);
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DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
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aDesiredSize.width=0;
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aDesiredSize.height=0;
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if (nsnull!=aDesiredSize.maxElementSize)
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{
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aDesiredSize.maxElementSize->width=0;
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aDesiredSize.maxElementSize->height=0;
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}
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aStatus = NS_FRAME_COMPLETE;
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NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
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return NS_OK;
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}
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PRInt32 nsTableColFrame::GetSpan()
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{
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const nsStyleTable* tableStyle;
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GetStyleData(eStyleStruct_Table, (const nsStyleStruct *&)tableStyle);
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return tableStyle->mSpan;
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}
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nscoord nsTableColFrame::GetWidth(PRUint32 aWidthType)
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{
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NS_ASSERTION(aWidthType < NUM_WIDTHS, "GetWidth: bad width type");
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return mWidths[aWidthType];
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}
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void nsTableColFrame::SetWidth(PRUint32 aWidthType,
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nscoord aWidth)
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{
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NS_ASSERTION(aWidthType < NUM_WIDTHS, "SetWidth: bad width type");
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mWidths[aWidthType] = aWidth;
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#ifdef MY_DEBUG
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if (aWidth > 0) {
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nscoord minWidth = GetMinWidth();
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if ((MIN_CON != aWidthType) && (aWidth < minWidth)) {
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printf("non min width set to lower than min \n");
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}
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}
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#endif
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}
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nscoord nsTableColFrame::GetMinWidth()
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{
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return PR_MAX(mWidths[MIN_CON], mWidths[MIN_ADJ]);
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}
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nscoord nsTableColFrame::GetDesWidth()
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{
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return PR_MAX(mWidths[DES_CON], mWidths[DES_ADJ]);
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}
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nscoord nsTableColFrame::GetFixWidth()
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{
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return PR_MAX(mWidths[FIX], mWidths[FIX_ADJ]);
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}
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nscoord nsTableColFrame::GetPctWidth()
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{
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return PR_MAX(mWidths[PCT], mWidths[PCT_ADJ]);
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}
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void nsTableColFrame::Dump(PRInt32 aIndent)
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{
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char* indent = new char[aIndent + 1];
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if (!indent) return;
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for (PRInt32 i = 0; i < aIndent + 1; i++) {
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indent[i] = ' ';
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}
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indent[aIndent] = 0;
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printf("%s**START COL DUMP** colIndex=%d isAnonymous=%d constraint=%d",
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indent, mColIndex, IsAnonymous(), GetConstraint());
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printf("\n%s widths=", indent);
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for (PRInt32 widthX = 0; widthX < NUM_WIDTHS; widthX++) {
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printf("%d ", mWidths[widthX]);
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}
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printf(" **END COL DUMP** ");
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delete [] indent;
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}
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/* ----- global methods ----- */
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nsresult
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NS_NewTableColFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame)
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{
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NS_PRECONDITION(aNewFrame, "null OUT ptr");
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if (nsnull == aNewFrame) {
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return NS_ERROR_NULL_POINTER;
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}
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nsTableColFrame* it = new (aPresShell) nsTableColFrame;
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if (nsnull == it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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*aNewFrame = it;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsTableColFrame::Init(nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsIFrame* aParent,
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nsIStyleContext* aContext,
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nsIFrame* aPrevInFlow)
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{
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nsresult rv;
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// Let the the base class do its initialization
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rv = nsFrame::Init(aPresContext, aContent, aParent, aContext,
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aPrevInFlow);
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// record that children that are ignorable whitespace should be excluded
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mState |= NS_FRAME_EXCLUDE_IGNORABLE_WHITESPACE;
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return rv;
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}
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nsTableColFrame*
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nsTableColFrame::GetNextCol() const
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{
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nsIFrame* childFrame;
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GetNextSibling(&childFrame);
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while (childFrame) {
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nsCOMPtr<nsIAtom> frameType;
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childFrame->GetFrameType(getter_AddRefs(frameType));
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if (nsLayoutAtoms::tableColFrame == frameType.get()) {
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return (nsTableColFrame*)childFrame;
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}
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childFrame->GetNextSibling(&childFrame);
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}
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return nsnull;
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}
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NS_IMETHODIMP
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nsTableColFrame::GetFrameType(nsIAtom** aType) const
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{
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NS_PRECONDITION(nsnull != aType, "null OUT parameter pointer");
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*aType = nsLayoutAtoms::tableColFrame;
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NS_ADDREF(*aType);
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return NS_OK;
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}
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#ifdef DEBUG
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NS_IMETHODIMP
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nsTableColFrame::GetFrameName(nsAString& aResult) const
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{
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return MakeFrameName(NS_LITERAL_STRING("TableCol"), aResult);
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}
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NS_IMETHODIMP
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nsTableColFrame::SizeOf(nsISizeOfHandler* aHandler, PRUint32* aResult) const
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{
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if (!aResult) {
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return NS_ERROR_NULL_POINTER;
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}
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PRUint32 sum = sizeof(*this);
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*aResult = sum;
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return NS_OK;
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}
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#endif
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