gecko-dev/layout/tables/nsTableColFrame.cpp

331 lines
9.5 KiB
C++

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