gecko-dev/layout/tables/nsTableColFrame.cpp

278 lines
7.9 KiB
C++

/* -*- 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 1.1 (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 Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#include "nsCOMPtr.h"
#include "nsTableColFrame.h"
#include "nsContainerFrame.h"
#include "nsIReflowCommand.h"
#include "nsIStyleContext.h"
#include "nsStyleConsts.h"
#include "nsIPresContext.h"
#include "nsHTMLIIDs.h"
#include "nsHTMLAtoms.h"
#include "nsCSSRendering.h"
#include "nsLayoutAtoms.h"
#include "nsIContent.h"
#include "nsIDOMHTMLTableColElement.h"
#define COL_TYPE_CONTENT 0x0
#define COL_TYPE_ANONYMOUS_COL 0x1
#define COL_TYPE_ANONYMOUS_COLGROUP 0x2
#define COL_TYPE_ANONYMOUS_CELL 0x3
static NS_DEFINE_IID(kIDOMHTMLTableColElementIID, NS_IDOMHTMLTABLECOLELEMENT_IID);
nsTableColFrame::nsTableColFrame()
: nsFrame(),
mProportion(WIDTH_NOT_SET),
mIsAnonymous(PR_FALSE),
mNonPercentSpansPercent(PR_FALSE)
{
// note that all fields are initialized to 0 by nsFrame::operator new
ResetSizingInfo();
SetType(eColContent);
}
nsTableColFrame::~nsTableColFrame()
{
}
nsTableColType nsTableColFrame::GetType() const {
switch(mBits.mType) {
case COL_TYPE_ANONYMOUS_COL:
return eColAnonymousCol;
case COL_TYPE_ANONYMOUS_COLGROUP:
return eColAnonymousColGroup;
case COL_TYPE_ANONYMOUS_CELL:
return eColAnonymousCell;
default:
return eColContent;
}
}
void nsTableColFrame::SetType(nsTableColType aType) {
mBits.mType = aType - eColContent;
}
// 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()) {
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()
{
nsCRT::memset(mWidths, WIDTH_NOT_SET, NUM_WIDTHS * sizeof(PRInt32));
mProportion = 0;
mConstraint = eNoConstraint;
mConstrainingCell = nsnull;
}
NS_METHOD nsTableColFrame::Paint(nsIPresContext* aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsFramePaintLayer aWhichLayer)
{
if (NS_FRAME_PAINT_LAYER_BACKGROUND == aWhichLayer) {
nsCompatibility mode;
aPresContext->GetCompatibilityMode(&mode);
if (eCompatibility_Standard == mode) {
const nsStyleDisplay* disp =
(const nsStyleDisplay*)mStyleContext->GetStyleData(eStyleStruct_Display);
if (disp->IsVisibleOrCollapsed()) {
const nsStyleSpacing* spacing =
(const nsStyleSpacing*)mStyleContext->GetStyleData(eStyleStruct_Spacing);
const nsStyleColor* color =
(const nsStyleColor*)mStyleContext->GetStyleData(eStyleStruct_Color);
nsRect rect(0, 0, mRect.width, mRect.height);
nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, this,
aDirtyRect, rect, *color, *spacing, 0, 0);
}
}
}
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)
{
if ((aWhichLayer == NS_FRAME_PAINT_LAYER_BACKGROUND) &&
(mRect.Contains(aPoint))) {
const nsStyleDisplay* disp = (const nsStyleDisplay*)
mStyleContext->GetStyleData(eStyleStruct_Display);
if (disp->IsVisible()) {
*aFrame = this;
return NS_OK;
}
}
return NS_ERROR_FAILURE;
}
NS_METHOD nsTableColFrame::Reflow(nsIPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
aDesiredSize.width=0;
aDesiredSize.height=0;
if (nsnull!=aDesiredSize.maxElementSize)
{
aDesiredSize.maxElementSize->width=0;
aDesiredSize.maxElementSize->height=0;
}
aStatus = NS_FRAME_COMPLETE;
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];
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, mIsAnonymous, mConstraint);
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::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(nsString& aResult) const
{
return MakeFrameName("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