gecko-dev/layout/tables/nsTableColFrame.cpp

325 lines
9.1 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* 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 of 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 MPL, 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 MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsCOMPtr.h"
#include "nsTableColFrame.h"
#include "nsTableFrame.h"
#include "nsContainerFrame.h"
#include "nsStyleContext.h"
#include "nsStyleConsts.h"
#include "nsPresContext.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);
SetColType(eColContent);
ResetSizingInfo();
}
nsTableColFrame::~nsTableColFrame()
{
}
nsTableColType
nsTableColFrame::GetColType() const
{
return (nsTableColType)((mState & COL_TYPE_BITS) >> COL_TYPE_OFFSET);
}
void
nsTableColFrame::SetColType(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
{
nsStyleCoord styleWidth = GetStylePosition()->mWidth;
if (eStyleUnit_Auto == styleWidth.GetUnit()) {
styleWidth = GetParent()->GetStylePosition()->mWidth;
}
nsStyleCoord returnWidth;
returnWidth.mUnit = styleWidth.mUnit;
returnWidth.mValue = styleWidth.mValue;
return returnWidth;
}
void nsTableColFrame::SetContinuousBCBorderWidth(PRUint8 aForSide,
BCPixelSize aPixelValue)
{
switch (aForSide) {
case NS_SIDE_TOP:
mTopContBorderWidth = aPixelValue;
return;
case NS_SIDE_RIGHT:
mRightContBorderWidth = aPixelValue;
return;
case NS_SIDE_BOTTOM:
mBottomContBorderWidth = aPixelValue;
return;
default:
NS_ERROR("invalid side arg");
}
}
void nsTableColFrame::ResetSizingInfo()
{
memset(mWidths, WIDTH_NOT_SET, NUM_WIDTHS * sizeof(PRInt32));
SetConstraint(eNoConstraint);
}
NS_METHOD
nsTableColFrame::Paint(nsPresContext* 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;
}
return NS_OK;
}
// override, since we want to act like a block
NS_IMETHODIMP
nsTableColFrame::GetFrameForPoint(nsPresContext* aPresContext,
const nsPoint& aPoint,
nsFramePaintLayer aWhichLayer,
nsIFrame** aFrame)
{
return NS_ERROR_FAILURE;
}
NS_METHOD nsTableColFrame::Reflow(nsPresContext* 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;
const nsStyleVisibility* colVis = GetStyleVisibility();
PRBool collapseCol = (NS_STYLE_VISIBILITY_COLLAPSE == colVis->mVisible);
if (collapseCol) {
nsTableFrame* tableFrame = nsnull;
nsTableFrame::GetTableFrame(this, tableFrame);
if (tableFrame) {
tableFrame->SetNeedToCollapseColumns(PR_TRUE);
}
}
if (aDesiredSize.mComputeMEW)
{
aDesiredSize.mMaxElementWidth=0;
}
aStatus = NS_FRAME_COMPLETE;
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
return NS_OK;
}
PRInt32 nsTableColFrame::GetSpan()
{
return GetStyleTable()->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(nsPresContext* aPresContext,
nsIContent* aContent,
nsIFrame* aParent,
nsStyleContext* 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();
while (childFrame) {
if (nsLayoutAtoms::tableColFrame == childFrame->GetType()) {
return (nsTableColFrame*)childFrame;
}
childFrame = childFrame->GetNextSibling();
}
return nsnull;
}
nsIAtom*
nsTableColFrame::GetType() const
{
return nsLayoutAtoms::tableColFrame;
}
#ifdef DEBUG
NS_IMETHODIMP
nsTableColFrame::GetFrameName(nsAString& aResult) const
{
return MakeFrameName(NS_LITERAL_STRING("TableCol"), aResult);
}
#endif