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table width computation using style system (more than it used to, at least)

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buster 1998-05-26 22:03:16 +00:00
Родитель 37b1e0ef09
Коммит 2104457c96
10 изменённых файлов: 678 добавлений и 550 удалений
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483
layout/html/table/src/BasicTableLayoutStrategy.cpp
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@ -36,26 +36,123 @@ NS_DEF_PTR(nsIStyleContext);
static PRBool gsDebug = PR_FALSE;
static PRBool gsDebugCLD = PR_FALSE;
static PRBool gsTiming = PR_FALSE;
static PRBool gsDebugMBP = PR_FALSE;
#else
static const PRBool gsDebug = PR_FALSE;
static const PRBool gsDebugCLD = PR_FALSE;
static const PRBool gsTiming = PR_FALSE;
static const PRBool gsDebugMBP = PR_FALSE;
#endif
//ZZZ TOTAL HACK
PRBool isTableAutoWidth = PR_TRUE;
PRBool isAutoColumnWidths = PR_TRUE;
/* return true if the style indicates that the width is proportional
* for the purposes of column width determination
*/
PRBool BasicTableLayoutStrategy::IsProportionalWidth(nsStylePosition* aStylePosition)
{
PRBool result = PR_FALSE; // assume that it is not
PRInt32 unitType;
if (nsnull == aStylePosition) {
unitType = eStyleUnit_Auto;
}
else {
unitType = aStylePosition->mWidth.GetUnit();
}
PRBool TableIsAutoWidth()
{ // ZZZ: TOTAL HACK
return isTableAutoWidth;
switch (unitType) {
case eStyleUnit_Coord:
break;
case eStyleUnit_Auto:
case eStyleUnit_Proportional:
case eStyleUnit_Percent:
result = PR_TRUE;
break;
// TODO
case eStyleUnit_Inherit:
break;
default:
NS_ASSERTION(PR_FALSE, "illegal style type in IsProportionalWidth");
break;
}
return result;
}
PRBool AutoColumnWidths()
{ // ZZZ: TOTAL HACK
return isAutoColumnWidths;
PRBool BasicTableLayoutStrategy::IsAutoWidth(nsStylePosition* aStylePosition)
{
PRBool result = PR_TRUE; // assume that it is
if (nsnull!=aStylePosition)
{
result = (PRBool)(eStyleUnit_Auto==aStylePosition->mWidth.GetUnit());
}
return result;
}
// aSpecifiedTableWidth is filled if the table witdth is not auto
PRBool BasicTableLayoutStrategy::TableIsAutoWidth(nsIStyleContext *aTableStyle, nscoord & aSpecifiedTableWidth)
{
NS_ASSERTION(nsnull!=aTableStyle, "bad arg - aTableStyle");
PRBool result = PR_TRUE; // the default
if (nsnull!=aTableStyle)
{
//nsStylePosition* tablePosition = (nsStylePosition*)aTableStyle->GetData(eStyleStruct_Position);
/* this is sick and wrong, but what the hell
we grab the style of our parent (nsTableOuterFrame) and ask it for width info,
until the style resolution stuff does the cool stuff about splitting style between outer and inner
*/
// begin REMOVE_ME_WHEN_TABLE_STYLE_IS_RESOLVED!
nsIStyleContext* parentStyle = nsnull;
nsIFrame * parent = nsnull;
mTableFrame->GetGeometricParent(parent);
parent->GetStyleContext(nsnull, parentStyle);
nsStylePosition* tablePosition = (nsStylePosition*)parentStyle->GetData(eStyleStruct_Position);
// end REMOVE_ME_WHEN_TABLE_STYLE_IS_RESOLVED!
switch (tablePosition->mWidth.GetUnit()) {
case eStyleUnit_Auto: // specified auto width
case eStyleUnit_Proportional: // illegal for table, so ignored
break;
case eStyleUnit_Inherit:
// get width of parent and see if it is a specified value or not
// XXX for now, just return true
break;
case eStyleUnit_Coord:
aSpecifiedTableWidth = tablePosition->mWidth.GetCoordValue();
result = PR_FALSE;
break;
case eStyleUnit_Percent:
// get the parent's width (available only from parent frames that claim they can provide it,
// and assuming it's already specified; that is, top-down layout sets the widths on the way down.)
nscoord parentWidth = 0;
nsIFrame *parent=nsnull;
nsIFrame *child=nsnull;
mTableFrame->GetGeometricParent(child); // start with the outer table frame as the child
child->GetGeometricParent(parent); // and the table outer frame's parent as the first parent
while(nsnull!=parent)
{
PRBool isPercentageBase=PR_FALSE;
parent->IsPercentageBase(isPercentageBase);
if (PR_TRUE==isPercentageBase)
{ // found the ancestor who claims to be the guy to base my percentage width on
nsRect parentRect;
parent->GetRect(parentRect);
parentWidth = parentRect.width;
if (PR_TRUE==gsDebug) printf(" ** width for parent frame %p = %d\n", parent, parentWidth);
break;
}
parent->GetGeometricParent(parent); // get next ancestor
}
// set aSpecifiedTableWidth to be the given percent of the parent.
float percent = tablePosition->mWidth.GetPercentValue();
aSpecifiedTableWidth = (PRInt32)(parentWidth*percent);
if (PR_TRUE==gsDebug) printf(" ** aSpecifiedTableWidth = %d\n", aSpecifiedTableWidth);
result = PR_FALSE;
break;
}
}
return result;
}
BasicTableLayoutStrategy::BasicTableLayoutStrategy(nsTableFrame *aFrame)
@ -68,6 +165,7 @@ BasicTableLayoutStrategy::~BasicTableLayoutStrategy()
}
PRBool BasicTableLayoutStrategy::BalanceColumnWidths(nsIPresContext* aPresContext,
nsIStyleContext *aTableStyle,
PRInt32 aMaxWidth,
PRInt32 aNumCols,
PRInt32 &aTotalFixedWidth,
@ -76,6 +174,7 @@ PRBool BasicTableLayoutStrategy::BalanceColumnWidths(nsIPresContext* aPresContex
nsSize* aMaxElementSize)
{
PRBool result = PR_TRUE;
// Step 1 - assign the width of all fixed-width columns
AssignFixedColumnWidths(aPresContext, aMaxWidth, aNumCols,
aTotalFixedWidth, aMinTableWidth, aMaxTableWidth);
@ -90,23 +189,18 @@ PRBool BasicTableLayoutStrategy::BalanceColumnWidths(nsIPresContext* aPresContex
if (gsDebug) printf(" nsnull aMaxElementSize\n");
}
// Step 2 - assign the width of all proportional-width columns in the remaining space
// Step 2 - determine how much space is really available
PRInt32 availWidth = aMaxWidth - aTotalFixedWidth;
nscoord tableWidth = 0;
if (PR_FALSE==TableIsAutoWidth(aTableStyle, tableWidth))
availWidth = tableWidth - aTotalFixedWidth;
// Step 3 - assign the width of all proportional-width columns in the remaining space
if (gsDebug==PR_TRUE) printf ("Step 2...\n availWidth = %d\n", availWidth);
if (TableIsAutoWidth())
{
if (gsDebug==PR_TRUE) printf (" calling BalanceProportionalColumnsForAutoWidthTable\n");
result = BalanceProportionalColumnsForAutoWidthTable(aPresContext,
availWidth, aMaxWidth,
aMinTableWidth, aMaxTableWidth);
}
else
{
if (gsDebug==PR_TRUE) printf (" calling BalanceProportionalColumnsForSpecifiedWidthTable\n");
result = BalanceProportionalColumnsForSpecifiedWidthTable(aPresContext,
availWidth, aMaxWidth,
aMinTableWidth, aMaxTableWidth);
}
result = BalanceProportionalColumns(aPresContext,
availWidth, aMaxWidth,
aMinTableWidth, aMaxTableWidth,
tableWidth);
return result;
}
@ -382,71 +476,58 @@ PRBool BasicTableLayoutStrategy::AssignFixedColumnWidths(nsIPresContext* aPresCo
return PR_TRUE;
}
PRBool BasicTableLayoutStrategy::BalanceProportionalColumnsForSpecifiedWidthTable(nsIPresContext* aPresContext,
PRInt32 aAvailWidth,
PRInt32 aMaxWidth,
PRInt32 aMinTableWidth,
PRInt32 aMaxTableWidth)
{
#ifdef DEBUG
nsIFrame *tablePIF=nsnull;
mTableFrame->GetPrevInFlow(tablePIF);
NS_ASSERTION(nsnull==tablePIF, "never ever call me on a continuing frame!");
#endif
PRBool result = PR_TRUE;
if (NS_UNCONSTRAINEDSIZE==aMaxWidth)
{ // the max width of the table fits comfortably in the available space
if (gsDebug) printf (" * table laying out in NS_UNCONSTRAINEDSIZE, calling BalanceColumnsTableFits\n");
result = BalanceColumnsTableFits(aPresContext, aAvailWidth);
}
else if (aMinTableWidth > aMaxWidth)
{ // the table doesn't fit in the available space
if (gsDebug) printf (" * min table does not fit, calling SetColumnsToMinWidth\n");
result = SetColumnsToMinWidth(aPresContext);
}
else if (aMaxTableWidth <= aMaxWidth)
{ // the max width of the table fits comfortably in the available space
if (gsDebug) printf (" * table desired size fits, calling BalanceColumnsTableFits\n");
result = BalanceColumnsTableFits(aPresContext, aAvailWidth);
}
else
{ // the table fits somewhere between its min and desired size
if (gsDebug) printf (" * table desired size does not fit, calling BalanceColumnsConstrained\n");
result = BalanceColumnsConstrained(aPresContext, aAvailWidth,
aMaxWidth, aMinTableWidth, aMaxTableWidth);
}
return result;
}
PRBool BasicTableLayoutStrategy::BalanceProportionalColumnsForAutoWidthTable( nsIPresContext* aPresContext,
PRInt32 aAvailWidth,
PRInt32 aMaxWidth,
PRInt32 aMinTableWidth,
PRInt32 aMaxTableWidth)
PRBool BasicTableLayoutStrategy::BalanceProportionalColumns(nsIPresContext* aPresContext,
PRInt32 aAvailWidth,
PRInt32 aMaxWidth,
PRInt32 aMinTableWidth,
PRInt32 aMaxTableWidth,
nscoord aTableFixedWidth)
{
PRBool result = PR_TRUE;
if (NS_UNCONSTRAINEDSIZE==aMaxWidth)
{ // the max width of the table fits comfortably in the available space
if (gsDebug) printf (" * table laying out in NS_UNCONSTRAINEDSIZE, calling BalanceColumnsTableFits\n");
result = BalanceColumnsTableFits(aPresContext, aAvailWidth);
}
else if (aMinTableWidth > aMaxWidth)
{ // the table doesn't fit in the available space
if (gsDebug) printf (" * min table does not fit, calling SetColumnsToMinWidth\n");
result = SetColumnsToMinWidth(aPresContext);
}
else if (aMaxTableWidth <= aMaxWidth)
{ // the max width of the table fits comfortably in the available space
if (gsDebug) printf (" * table desired size fits, calling BalanceColumnsTableFits\n");
result = BalanceColumnsTableFits(aPresContext, aAvailWidth);
if (0==aTableFixedWidth)
{
if (NS_UNCONSTRAINEDSIZE==aMaxWidth)
{ // the max width of the table fits comfortably in the available space
if (gsDebug) printf (" * table laying out in NS_UNCONSTRAINEDSIZE, calling BalanceColumnsTableFits\n");
result = BalanceColumnsTableFits(aPresContext, aAvailWidth, aTableFixedWidth);
}
else if (aMinTableWidth > aMaxWidth)
{ // the table doesn't fit in the available space
if (gsDebug) printf (" * min table does not fit, calling SetColumnsToMinWidth\n");
result = SetColumnsToMinWidth(aPresContext);
}
else if (aMaxTableWidth <= aMaxWidth)
{ // the max width of the table fits comfortably in the available space
if (gsDebug) printf (" * table desired size fits, calling BalanceColumnsTableFits\n");
result = BalanceColumnsTableFits(aPresContext, aAvailWidth, aTableFixedWidth);
}
else
{ // the table fits somewhere between its min and desired size
if (gsDebug) printf (" * table desired size does not fit, calling BalanceColumnsConstrained\n");
result = BalanceColumnsConstrained(aPresContext, aAvailWidth,
aMaxWidth, aMinTableWidth, aMaxTableWidth);
}
}
else
{ // the table fits somewhere between its min and desired size
if (gsDebug) printf (" * table desired size does not fit, calling BalanceColumnsConstrained\n");
result = BalanceColumnsConstrained(aPresContext, aAvailWidth,
aMaxWidth, aMinTableWidth, aMaxTableWidth);
{
if (aTableFixedWidth<aMinTableWidth)
{ // the table doesn't fit in the available space
if (gsDebug) printf (" * specified width table with width<minTableWidth, calling SetColumnsToMinWidth\n");
result = SetColumnsToMinWidth(aPresContext);
}
else if (aTableFixedWidth<aMaxTableWidth)
{ // the table's specified width is between it's min and max, so fit the columns in proportionately
if (gsDebug) printf (" * specified width table < maxTableWidth, calling BalanceColumnsConstrained\n");
result = BalanceColumnsConstrained(aPresContext, aAvailWidth,
aMaxTableWidth, aMinTableWidth, aMaxTableWidth);
}
else
{ // the table's specified width is >= its max width, so give each column its max requested size
if (gsDebug) printf (" * specified width table > maxTableWidth, calling BalanceColumnsTableFits\n");
result = BalanceColumnsTableFits(aPresContext, aAvailWidth, aTableFixedWidth);
}
}
return result;
}
@ -469,7 +550,7 @@ PRBool BasicTableLayoutStrategy::SetColumnsToMinWidth(nsIPresContext* aPresConte
// XXX need column frame to ask this question
nsStylePosition* colPosition = nsnull;
if (PR_TRUE==mTableFrame->IsProportionalWidth(colPosition))
if (PR_TRUE==IsProportionalWidth(colPosition))
{
for (PRInt32 cellIndex = 0; cellIndex<numCells; cellIndex++)
{ // this col has proportional width, so determine its width requirements
@ -493,25 +574,21 @@ PRBool BasicTableLayoutStrategy::SetColumnsToMinWidth(nsIPresContext* aPresConte
if (gsDebug==PR_TRUE)
{
printf (" for determining width of col %d %s:\n",
colIndex, mTableFrame->IsProportionalWidth(colPosition)? "(P)":"(A)");
colIndex, IsProportionalWidth(colPosition)? "(P)":"(A)");
printf (" minColWidth = %d and maxColWidth = %d\n", minColWidth, maxColWidth);
}
// XXX BUG: why are we asking this again? this if is already in a
// IsProportionalWidth == PR_TRUE case!
if (PR_TRUE==mTableFrame->IsProportionalWidth(colPosition))
{ // this col has proportional width, so set its width based on the table width
mTableFrame->SetColumnWidth(colIndex, minColWidth);
if (gsDebug==PR_TRUE)
printf (" 2: col %d, set to width = %d\n", colIndex, mTableFrame->GetColumnWidth(colIndex));
}
mTableFrame->SetColumnWidth(colIndex, minColWidth);
if (gsDebug==PR_TRUE)
printf (" 2: col %d, set to width = %d\n", colIndex, mTableFrame->GetColumnWidth(colIndex));
}
}
return result;
}
PRBool BasicTableLayoutStrategy::BalanceColumnsTableFits(nsIPresContext* aPresContext,
PRInt32 aAvailWidth)
PRInt32 aAvailWidth,
nscoord aTableFixedWidth)
{
#ifdef DEBUG
nsIFrame *tablePIF=nsnull;
@ -520,6 +597,8 @@ PRBool BasicTableLayoutStrategy::BalanceColumnsTableFits(nsIPresContext* aPresCo
#endif
PRBool result = PR_TRUE;
nscoord tableWidth=0;
nscoord numProportionalColumns = 0;
nsVoidArray *spanList=nsnull;
nsVoidArray *columnLayoutData = mTableFrame->GetColumnLayoutData();
PRInt32 numCols = columnLayoutData->Count();
@ -536,8 +615,9 @@ PRBool BasicTableLayoutStrategy::BalanceColumnsTableFits(nsIPresContext* aPresCo
// XXX Need columnFrame to ask the style question
nsStylePosition* colPosition = nsnull;
if (PR_TRUE==mTableFrame->IsProportionalWidth(colPosition))
if (PR_TRUE==IsProportionalWidth(colPosition))
{
numProportionalColumns++;
// first, deal with any cells that span into this column from a pervious column
if (nsnull!=spanList)
{
@ -603,59 +683,93 @@ PRBool BasicTableLayoutStrategy::BalanceColumnsTableFits(nsIPresContext* aPresCo
if (gsDebug==PR_TRUE)
{
printf (" for determining width of col %d %s:\n",
colIndex, mTableFrame->IsProportionalWidth(colPosition)? "(P)":"(A)");
colIndex, IsProportionalWidth(colPosition)? "(P)":"(A)");
printf (" minColWidth = %d and maxColWidth = %d\n", minColWidth, maxColWidth);
printf (" aAvailWidth = %d\n", aAvailWidth);
}
// XXX BUG: why are we asking this again? this if is already in a
// IsProportionalWidth == PR_TRUE case!
if (PR_TRUE==mTableFrame->IsProportionalWidth(colPosition))
{ // this col has proportional width, so set its width based on the table width
#if XXX_bug_kipp_about_this
if (0==colStyle->proportionalWidth)
{ // col width is specified to be the minimum
mTableFrame->SetColumnWidth(colIndex, minColWidth);
if (gsDebug==PR_TRUE)
printf (" 3 (0): col %d set to min width = %d because style set proportionalWidth=0\n",
colIndex, mTableFrame->GetColumnWidth(colIndex));
}
else // BUG? else? other code below has the else
if (0==colStyle->proportionalWidth)
{ // col width is specified to be the minimum
mTableFrame->SetColumnWidth(colIndex, minColWidth);
if (gsDebug==PR_TRUE)
printf (" 3 (0): col %d set to min width = %d because style set proportionalWidth=0\n",
colIndex, mTableFrame->GetColumnWidth(colIndex));
}
else // BUG? else? other code below has the else
#endif
if (PR_TRUE==AutoColumnWidths())
{ // give each remaining column it's desired width
// if there is width left over, we'll factor that in after this loop is complete
if (PR_TRUE==IsAutoWidth(colPosition))
{ // give each remaining column it's desired width
// if there is width left over, we'll factor that in after this loop is complete
mTableFrame->SetColumnWidth(colIndex, maxColWidth);
if (gsDebug==PR_TRUE)
printf (" 3a: col %d with availWidth %d, set to width = %d\n",
colIndex, aAvailWidth, mTableFrame->GetColumnWidth(colIndex));
}
else
{ // give each remaining column an equal percentage of the remaining space
PRInt32 percentage = -1;
if (NS_UNCONSTRAINEDSIZE==aAvailWidth)
{
mTableFrame->SetColumnWidth(colIndex, maxColWidth);
if (gsDebug==PR_TRUE)
printf (" 3a: col %d with availWidth %d, set to width = %d\n",
colIndex, aAvailWidth, mTableFrame->GetColumnWidth(colIndex));
}
else
{ // give each remaining column an equal percentage of the remaining space
PRInt32 percentage = -1;
if (NS_UNCONSTRAINEDSIZE==aAvailWidth)
{
mTableFrame->SetColumnWidth(colIndex, maxColWidth);
}
else
{
{
#if XXX_bug_kipp_about_this
percentage = colStyle->proportionalWidth;
if (-1==percentage)
percentage = colStyle->proportionalWidth;
if (-1==percentage)
#endif
percentage = 100/numCols;
mTableFrame->SetColumnWidth(colIndex, (percentage*aAvailWidth)/100);
// if the column was computed to be too small, enlarge the column
if (mTableFrame->GetColumnWidth(colIndex) <= minColWidth)
mTableFrame->SetColumnWidth(colIndex, minColWidth);
}
if (gsDebug==PR_TRUE)
printf (" 3b: col %d given %d percent of availWidth %d, set to width = %d\n",
colIndex, percentage, aAvailWidth, mTableFrame->GetColumnWidth(colIndex));
percentage = 100/numCols;
mTableFrame->SetColumnWidth(colIndex, (percentage*aAvailWidth)/100);
// if the column was computed to be too small, enlarge the column
if (mTableFrame->GetColumnWidth(colIndex) <= minColWidth)
mTableFrame->SetColumnWidth(colIndex, minColWidth);
}
if (gsDebug==PR_TRUE)
printf (" 3b: col %d given %d percent of availWidth %d, set to width = %d\n",
colIndex, percentage, aAvailWidth, mTableFrame->GetColumnWidth(colIndex));
}
}
tableWidth += mTableFrame->GetColumnWidth(colIndex);
}
// post-process if necessary
// if the specified width of the table is greater than the table's computed width, expand the
// table's computed width to match the specified width, giving the extra space to proportionately-sized
// columns if possible.
if (aTableFixedWidth > tableWidth)
{
nscoord excess = aTableFixedWidth - tableWidth;
// if there are proportionally-sized columns, give them the extra space
if (0!=numProportionalColumns)
{
nscoord excessPerColumn = excess/numProportionalColumns;
if (gsDebug==PR_TRUE) printf(" aTableFixedWidth specified as %d, expanding columns by excess = %d\n", aTableFixedWidth, excess);
for (PRInt32 colIndex = 0; colIndex<numCols; colIndex++)
{
// need the column style here!
if (PR_TRUE==IsProportionalWidth(nsnull))
{
nscoord colWidth = excessPerColumn+mTableFrame->GetColumnWidth(colIndex);
mTableFrame->SetColumnWidth(colIndex, colWidth);
}
}
}
// otherwise, distribute the space evenly between all the columns
else
{
nscoord excessPerColumn = excess/numCols;
if (gsDebug==PR_TRUE) printf(" aTableFixedWidth specified as %d, expanding columns by excess = %d\n", aTableFixedWidth, excess);
for (PRInt32 colIndex = 0; colIndex<numCols; colIndex++)
{
nscoord colWidth = excessPerColumn+mTableFrame->GetColumnWidth(colIndex);
mTableFrame->SetColumnWidth(colIndex, colWidth);
}
}
}
if (nsnull!=spanList)
delete spanList;
return result;
@ -674,6 +788,7 @@ PRBool BasicTableLayoutStrategy::BalanceColumnsConstrained( nsIPresContext* aPre
#endif
PRBool result = PR_TRUE;
PRBool equalWidthColumns=PR_FALSE; // TODO: compute this via style system
PRInt32 maxOfAllMinColWidths = 0;
nsVoidArray *spanList=nsnull;
nsVoidArray *columnLayoutData = mTableFrame->GetColumnLayoutData();
@ -697,7 +812,7 @@ PRBool BasicTableLayoutStrategy::BalanceColumnsConstrained( nsIPresContext* aPre
PRInt32 numCells = cells->Count();
if (gsDebug==PR_TRUE) printf (" for col %d\n", colIndex);
if (PR_TRUE==mTableFrame->IsProportionalWidth(colPosition))
if (PR_TRUE==IsProportionalWidth(colPosition))
{
// first, deal with any cells that span into this column from a pervious column
if (nsnull!=spanList)
@ -758,60 +873,64 @@ PRBool BasicTableLayoutStrategy::BalanceColumnsConstrained( nsIPresContext* aPre
if (gsDebug==PR_TRUE)
{
printf (" for determining width of col %d %s:\n",
colIndex, mTableFrame->IsProportionalWidth(colPosition)? "(P)":"(A)");
colIndex, IsProportionalWidth(colPosition)? "(P)":"(A)");
printf (" minTableWidth = %d and maxTableWidth = %d\n", aMinTableWidth, aMaxTableWidth);
printf (" minColWidth = %d and maxColWidth = %d\n", minColWidth, maxColWidth);
printf (" aAvailWidth = %d\n", aAvailWidth);
}
// XXX BUG: why are we asking this again? this if is already in a
// IsProportionalWidth == PR_TRUE case!
if (PR_TRUE==mTableFrame->IsProportionalWidth(colPosition))
{ // this col has proportional width, so set its width based on the table width
// the table fits in the space somewhere between its min and max size
// so dole out the available space appropriately
// this col has proportional width, so set its width based on the table width
// the table fits in the space somewhere between its min and max size
// so dole out the available space appropriately
#if XXX_bug_kipp_about_this
if (0==colStyle->proportionalWidth)
{ // col width is specified to be the minimum
mTableFrame->SetColumnWidth(colIndex, minColWidth);
if (gsDebug==PR_TRUE)
printf (" 4 (0): col %d set to min width = %d because style set proportionalWidth=0\n",
colIndex, mTableFrame->GetColumnWidth(colIndex));
}
else
if (0==colStyle->proportionalWidth)
{ // col width is specified to be the minimum
mTableFrame->SetColumnWidth(colIndex, minColWidth);
if (gsDebug==PR_TRUE)
printf (" 4 (0): col %d set to min width = %d because style set proportionalWidth=0\n",
colIndex, mTableFrame->GetColumnWidth(colIndex));
}
else
#endif
if (AutoColumnWidths())
if (1==numCols)
{ // there is only one column, so it should be as wide as the available space allows it to be
if (gsDebug==PR_TRUE) printf (" 4 one-column: col %d set to width = %d\n", colIndex, aAvailWidth);
mTableFrame->SetColumnWidth(colIndex, aAvailWidth);
}
else if (IsAutoWidth(colPosition))
{ // column's width is determined by its content
PRUint32 W = aMaxWidth - aMinTableWidth;
PRUint32 D = aMaxTableWidth - aMinTableWidth;
if (0==D) // fixed-size table
D=1;
PRUint32 d = maxColWidth - minColWidth;
PRInt32 width = (d*W)/D;
mTableFrame->SetColumnWidth(colIndex, minColWidth + width);
if (gsDebug==PR_TRUE)
printf (" 4 auto-width: col %d W=%d D=%d d=%d, set to width = %d\n",
colIndex, W, D, d, mTableFrame->GetColumnWidth(colIndex));
}
else
{ // give each remaining column an equal percentage of the remaining space
#if XXX_bug_kipp_about_this
PRInt32 percentage = colStyle->proportionalWidth;
if (-1==percentage)
#endif
PRInt32 percentage = 100/numCols;
mTableFrame->SetColumnWidth(colIndex, (percentage*aAvailWidth)/100);
// if the column was computed to be too small, enlarge the column
if (mTableFrame->GetColumnWidth(colIndex) <= minColWidth)
{
PRInt32 W = aMaxWidth - aMinTableWidth;
PRInt32 D = aMaxTableWidth - aMinTableWidth;
PRInt32 d = maxColWidth - minColWidth;
mTableFrame->SetColumnWidth(colIndex, minColWidth + ((d*W)/D));
if (gsDebug==PR_TRUE)
printf (" 4 auto-width: col %d W=%d D=%d d=%d, set to width = %d\n",
colIndex, W, D, d, mTableFrame->GetColumnWidth(colIndex));
mTableFrame->SetColumnWidth(colIndex, minColWidth);
if (maxOfAllMinColWidths < minColWidth)
maxOfAllMinColWidths = minColWidth;
}
else
{ // give each remaining column an equal percentage of the remaining space
#if XXX_bug_kipp_about_this
PRInt32 percentage = colStyle->proportionalWidth;
if (-1==percentage)
#endif
PRInt32 percentage = 100/numCols;
mTableFrame->SetColumnWidth(colIndex, (percentage*aAvailWidth)/100);
// if the column was computed to be too small, enlarge the column
if (mTableFrame->GetColumnWidth(colIndex) <= minColWidth)
{
mTableFrame->SetColumnWidth(colIndex, minColWidth);
if (maxOfAllMinColWidths < minColWidth)
maxOfAllMinColWidths = minColWidth;
}
if (gsDebug==PR_TRUE)
{
printf (" 4 equal width: col %d given %d percent of availWidth %d, set to width = %d\n",
colIndex, percentage, aAvailWidth, mTableFrame->GetColumnWidth(colIndex));
if (0!=maxOfAllMinColWidths)
printf(" and setting maxOfAllMins to %d\n", maxOfAllMinColWidths);
}
if (gsDebug==PR_TRUE)
{
printf (" 4 equal width: col %d given %d percent of availWidth %d, set to width = %d\n",
colIndex, percentage, aAvailWidth, mTableFrame->GetColumnWidth(colIndex));
if (0!=maxOfAllMinColWidths)
printf(" and setting maxOfAllMins to %d\n", maxOfAllMinColWidths);
}
}
}
@ -821,7 +940,7 @@ PRBool BasicTableLayoutStrategy::BalanceColumnsConstrained( nsIPresContext* aPre
// if columns have equal width, and some column's content couldn't squeeze into the computed size,
// then expand every column to the min size of the column with the largest min size
if (!AutoColumnWidths() && 0!=maxOfAllMinColWidths)
if (equalWidthColumns && 0!=maxOfAllMinColWidths)
{
if (gsDebug==PR_TRUE) printf(" EqualColWidths specified, so setting all col widths to %d\n", maxOfAllMinColWidths);
for (PRInt32 colIndex = 0; colIndex<numCols; colIndex++)

55
layout/html/table/src/BasicTableLayoutStrategy.h
Просмотреть файл

@ -21,8 +21,10 @@
#include "nscore.h"
#include "nsITableLayoutStrategy.h"
#include "nscoord.h"
class nsTableFrame;
struct nsStylePosition;
/* ----------- SpanInfo ---------- */
@ -54,12 +56,14 @@ public:
~BasicTableLayoutStrategy();
virtual PRBool BalanceColumnWidths(nsIPresContext* aPresContext,
nsIStyleContext *aTableStyle,
PRInt32 aMaxWidth,
PRInt32 aNumCols,
PRInt32 &aTotalFixedWidth,
PRInt32 &aMinTableWidth,
PRInt32 &aMaxTableWidth,
nsSize* aMaxElementSize);
/** assign widths for each column that has fixed width.
* Computes the minimum and maximum table widths.
* Sets mColumnWidths as a side effect.
@ -83,27 +87,6 @@ public:
PRInt32 & aMinTableWidth,
PRInt32 & aMaxTableWidth);
/** assign widths for each column that has proportional width inside a table that
* has a fixed width.
* Sets mColumnWidths as a side effect.
*
* @param aPresContext the presentation context
* @param aTableStyle the resolved style for the table
* @param aAvailWidth the remaining amount of horizontal space available
* @param aMaxWidth the total amount of horizontal space available
* @param aMinTableWidth the min possible table width
* @param aMaxTableWidth the max table width
*
* @return PR_TRUE if all is well, PR_FALSE if there was an unrecoverable error
*
* TODO: rename this method to reflect that it is a Nav4 compatibility method
*/
virtual PRBool BalanceProportionalColumnsForSpecifiedWidthTable(nsIPresContext* aPresContext,
PRInt32 aAvailWidth,
PRInt32 aMaxWidth,
PRInt32 aMinTableWidth,
PRInt32 aMaxTableWidth);
/** assign widths for each column that has proportional width inside a table that
* has auto width (width set by the content and available space.)
* Sets mColumnWidths as a side effect.
@ -117,13 +100,13 @@ public:
*
* @return PR_TRUE if all is well, PR_FALSE if there was an unrecoverable error
*
* TODO: rename this method to reflect that it is a Nav4 compatibility method
*/
virtual PRBool BalanceProportionalColumnsForAutoWidthTable(nsIPresContext* aPresContext,
PRInt32 aAvailWidth,
PRInt32 aMaxWidth,
PRInt32 aMinTableWidth,
PRInt32 aMaxTableWidth);
virtual PRBool BalanceProportionalColumns(nsIPresContext* aPresContext,
PRInt32 aAvailWidth,
PRInt32 aMaxWidth,
PRInt32 aMinTableWidth,
PRInt32 aMaxTableWidth,
nscoord aTableFixedWidth);
/** assign the minimum allowed width for each column that has proportional width.
* Typically called when the min table width doesn't fit in the available space.
@ -140,13 +123,15 @@ public:
* Sets mColumnWidths as a side effect.
*
* @param aPresContext the presentation context
* @param aTableStyle the resolved style for the table
* @param aAvailWidth the remaining amount of horizontal space available
*
* @param aTableFixedWidth the specified width of the table. If there is none,
* this param is 0
*
* @return PR_TRUE if all is well, PR_FALSE if there was an unrecoverable error
*/
virtual PRBool BalanceColumnsTableFits(nsIPresContext* aPresContext,
PRInt32 aAvailWidth);
PRInt32 aAvailWidth,
nscoord aTableFixedWidth);
/** assign widths for each column that has proportional width inside a table that
* has auto width (width set by the content and available space) according to the
@ -170,6 +155,16 @@ public:
PRInt32 aMinTableWidth,
PRInt32 aMaxTableWidth);
/** return true if the style indicates that the width is proportional
* for the purposes of column width determination
*/
virtual PRBool IsProportionalWidth(nsStylePosition* aStylePosition);
virtual PRBool IsAutoWidth(nsStylePosition* aStylePosition);
virtual PRBool TableIsAutoWidth(nsIStyleContext *aTableStyle, nscoord & aSpecifiedTableWidth);
protected:
nsTableFrame * mTableFrame;

39
layout/html/table/src/nsITableLayoutStrategy.h
Просмотреть файл

@ -23,6 +23,7 @@
#include "nsSize.h"
class nsIPresContext;
class nsIStyleContext;
class nsITableLayoutStrategy
{
@ -36,6 +37,7 @@ public:
* @param aMaxElementSize the min size of the largest indivisible object
*/
virtual PRBool BalanceColumnWidths(nsIPresContext* aPresContext,
nsIStyleContext *aTableStyle,
PRInt32 maxWidth,
PRInt32 aNumCols,
PRInt32 &aTotalFixedWidth,
@ -66,26 +68,7 @@ public:
PRInt32 & aMinTableWidth,
PRInt32 & aMaxTableWidth)=0;
/** assign widths for each column that has proportional width inside a table that
* has a fixed width.
* Sets mColumnWidths as a side effect.
*
* @param aPresContext the presentation context
* @param aTableStyle the resolved style for the table
* @param aAvailWidth the remaining amount of horizontal space available
* @param aMaxWidth the total amount of horizontal space available
* @param aMinTableWidth the min possible table width
* @param aMaxTableWidth the max table width
*
* @return PR_TRUE if all is well, PR_FALSE if there was an unrecoverable error
*
* TODO: rename this method to reflect that it is a Nav4 compatibility method
*/
virtual PRBool BalanceProportionalColumnsForSpecifiedWidthTable(nsIPresContext* aPresContext,
PRInt32 aAvailWidth,
PRInt32 aMaxWidth,
PRInt32 aMinTableWidth,
PRInt32 aMaxTableWidth)=0;
/** assign widths for each column that has proportional width inside a table that
* has auto width (width set by the content and available space.)
@ -99,14 +82,13 @@ public:
* @param aMaxTableWidth the max table width
*
* @return PR_TRUE if all is well, PR_FALSE if there was an unrecoverable error
*
* TODO: rename this method to reflect that it is a Nav4 compatibility method
*/
virtual PRBool BalanceProportionalColumnsForAutoWidthTable(nsIPresContext* aPresContext,
PRInt32 aAvailWidth,
PRInt32 aMaxWidth,
PRInt32 aMinTableWidth,
PRInt32 aMaxTableWidth)=0;
virtual PRBool BalanceProportionalColumns(nsIPresContext* aPresContext,
PRInt32 aAvailWidth,
PRInt32 aMaxWidth,
PRInt32 aMinTableWidth,
PRInt32 aMaxTableWidth,
nscoord aTableFixedWidth)=0;
/** assign the minimum allowed width for each column that has proportional width.
* Typically called when the min table width doesn't fit in the available space.
@ -129,7 +111,8 @@ public:
* @return PR_TRUE if all is well, PR_FALSE if there was an unrecoverable error
*/
virtual PRBool BalanceColumnsTableFits(nsIPresContext* aPresContext,
PRInt32 aAvailWidth)=0;
PRInt32 aAvailWidth,
nscoord aTableFixedWidth)=0;
/** assign widths for each column that has proportional width inside a table that
* has auto width (width set by the content and available space) according to the

31
layout/html/table/src/nsTableFrame.cpp
Просмотреть файл

@ -1571,7 +1571,8 @@ void nsTableFrame::BalanceColumnWidths(nsIPresContext* aPresContext,
{ // TODO: build a different strategy based on the compatibility mode
mTableLayoutStrategy = new BasicTableLayoutStrategy(this);
}
mTableLayoutStrategy->BalanceColumnWidths(aPresContext, maxWidth, numCols,
mTableLayoutStrategy->BalanceColumnWidths(aPresContext, mStyleContext,
maxWidth, numCols,
totalFixedWidth, minTableWidth, maxTableWidth,
aMaxElementSize);
@ -1864,34 +1865,6 @@ void nsTableFrame::ShrinkWrapChildren(nsIPresContext* aPresContext,
#endif
}
// XXX Kipp wonders: what does this really mean? Are you really asking
// "Is it fixed width"? If so, then VALUE_PCT may be wrong and the
// name of the method should be changed.
PRBool nsTableFrame::IsProportionalWidth(nsStylePosition* aStylePosition)
{
PRBool result = PR_FALSE;
if (nsnull == aStylePosition) {
// Assume NS_STYLE_POSITION_VALUE_AUTO when no style is available
result = PR_TRUE;
}
else {
switch (aStylePosition->mWidth.GetUnit()) {
case eStyleUnit_Coord:
case eStyleUnit_Percent:
break;
default:
case eStyleUnit_Auto:
case eStyleUnit_Inherit:
case eStyleUnit_Proportional:
result = PR_TRUE;
break;
}
}
return result;
}
void nsTableFrame::VerticallyAlignChildren(nsIPresContext* aPresContext,
nscoord* aAscents,
nscoord aMaxAscent,

6
layout/html/table/src/nsTableFrame.h
Просмотреть файл

@ -124,12 +124,6 @@ public:
* otherwise, the data is returned.
*/
virtual nsCellLayoutData * GetCellLayoutData(nsTableCell *aCell);
/** returns PR_TRUE if this table has proportional width
*/
PRBool IsProportionalWidth(nsStylePosition* aStylePosition);
/**
* DEBUG METHOD

483
layout/tables/BasicTableLayoutStrategy.cpp
Просмотреть файл

@ -36,26 +36,123 @@ NS_DEF_PTR(nsIStyleContext);
static PRBool gsDebug = PR_FALSE;
static PRBool gsDebugCLD = PR_FALSE;
static PRBool gsTiming = PR_FALSE;
static PRBool gsDebugMBP = PR_FALSE;
#else
static const PRBool gsDebug = PR_FALSE;
static const PRBool gsDebugCLD = PR_FALSE;
static const PRBool gsTiming = PR_FALSE;
static const PRBool gsDebugMBP = PR_FALSE;
#endif
//ZZZ TOTAL HACK
PRBool isTableAutoWidth = PR_TRUE;
PRBool isAutoColumnWidths = PR_TRUE;
/* return true if the style indicates that the width is proportional
* for the purposes of column width determination
*/
PRBool BasicTableLayoutStrategy::IsProportionalWidth(nsStylePosition* aStylePosition)
{
PRBool result = PR_FALSE; // assume that it is not
PRInt32 unitType;
if (nsnull == aStylePosition) {
unitType = eStyleUnit_Auto;
}
else {
unitType = aStylePosition->mWidth.GetUnit();
}
PRBool TableIsAutoWidth()
{ // ZZZ: TOTAL HACK
return isTableAutoWidth;
switch (unitType) {
case eStyleUnit_Coord:
break;
case eStyleUnit_Auto:
case eStyleUnit_Proportional:
case eStyleUnit_Percent:
result = PR_TRUE;
break;
// TODO
case eStyleUnit_Inherit:
break;
default:
NS_ASSERTION(PR_FALSE, "illegal style type in IsProportionalWidth");
break;
}
return result;
}
PRBool AutoColumnWidths()
{ // ZZZ: TOTAL HACK
return isAutoColumnWidths;
PRBool BasicTableLayoutStrategy::IsAutoWidth(nsStylePosition* aStylePosition)
{
PRBool result = PR_TRUE; // assume that it is
if (nsnull!=aStylePosition)
{
result = (PRBool)(eStyleUnit_Auto==aStylePosition->mWidth.GetUnit());
}
return result;
}
// aSpecifiedTableWidth is filled if the table witdth is not auto
PRBool BasicTableLayoutStrategy::TableIsAutoWidth(nsIStyleContext *aTableStyle, nscoord & aSpecifiedTableWidth)
{
NS_ASSERTION(nsnull!=aTableStyle, "bad arg - aTableStyle");
PRBool result = PR_TRUE; // the default
if (nsnull!=aTableStyle)
{
//nsStylePosition* tablePosition = (nsStylePosition*)aTableStyle->GetData(eStyleStruct_Position);
/* this is sick and wrong, but what the hell
we grab the style of our parent (nsTableOuterFrame) and ask it for width info,
until the style resolution stuff does the cool stuff about splitting style between outer and inner
*/
// begin REMOVE_ME_WHEN_TABLE_STYLE_IS_RESOLVED!
nsIStyleContext* parentStyle = nsnull;
nsIFrame * parent = nsnull;
mTableFrame->GetGeometricParent(parent);
parent->GetStyleContext(nsnull, parentStyle);
nsStylePosition* tablePosition = (nsStylePosition*)parentStyle->GetData(eStyleStruct_Position);
// end REMOVE_ME_WHEN_TABLE_STYLE_IS_RESOLVED!
switch (tablePosition->mWidth.GetUnit()) {
case eStyleUnit_Auto: // specified auto width
case eStyleUnit_Proportional: // illegal for table, so ignored
break;
case eStyleUnit_Inherit:
// get width of parent and see if it is a specified value or not
// XXX for now, just return true
break;
case eStyleUnit_Coord:
aSpecifiedTableWidth = tablePosition->mWidth.GetCoordValue();
result = PR_FALSE;
break;
case eStyleUnit_Percent:
// get the parent's width (available only from parent frames that claim they can provide it,
// and assuming it's already specified; that is, top-down layout sets the widths on the way down.)
nscoord parentWidth = 0;
nsIFrame *parent=nsnull;
nsIFrame *child=nsnull;
mTableFrame->GetGeometricParent(child); // start with the outer table frame as the child
child->GetGeometricParent(parent); // and the table outer frame's parent as the first parent
while(nsnull!=parent)
{
PRBool isPercentageBase=PR_FALSE;
parent->IsPercentageBase(isPercentageBase);
if (PR_TRUE==isPercentageBase)
{ // found the ancestor who claims to be the guy to base my percentage width on
nsRect parentRect;
parent->GetRect(parentRect);
parentWidth = parentRect.width;
if (PR_TRUE==gsDebug) printf(" ** width for parent frame %p = %d\n", parent, parentWidth);
break;
}
parent->GetGeometricParent(parent); // get next ancestor
}
// set aSpecifiedTableWidth to be the given percent of the parent.
float percent = tablePosition->mWidth.GetPercentValue();
aSpecifiedTableWidth = (PRInt32)(parentWidth*percent);
if (PR_TRUE==gsDebug) printf(" ** aSpecifiedTableWidth = %d\n", aSpecifiedTableWidth);
result = PR_FALSE;
break;
}
}
return result;
}
BasicTableLayoutStrategy::BasicTableLayoutStrategy(nsTableFrame *aFrame)
@ -68,6 +165,7 @@ BasicTableLayoutStrategy::~BasicTableLayoutStrategy()
}
PRBool BasicTableLayoutStrategy::BalanceColumnWidths(nsIPresContext* aPresContext,
nsIStyleContext *aTableStyle,
PRInt32 aMaxWidth,
PRInt32 aNumCols,
PRInt32 &aTotalFixedWidth,
@ -76,6 +174,7 @@ PRBool BasicTableLayoutStrategy::BalanceColumnWidths(nsIPresContext* aPresContex
nsSize* aMaxElementSize)
{
PRBool result = PR_TRUE;
// Step 1 - assign the width of all fixed-width columns
AssignFixedColumnWidths(aPresContext, aMaxWidth, aNumCols,
aTotalFixedWidth, aMinTableWidth, aMaxTableWidth);
@ -90,23 +189,18 @@ PRBool BasicTableLayoutStrategy::BalanceColumnWidths(nsIPresContext* aPresContex
if (gsDebug) printf(" nsnull aMaxElementSize\n");
}
// Step 2 - assign the width of all proportional-width columns in the remaining space
// Step 2 - determine how much space is really available
PRInt32 availWidth = aMaxWidth - aTotalFixedWidth;
nscoord tableWidth = 0;
if (PR_FALSE==TableIsAutoWidth(aTableStyle, tableWidth))
availWidth = tableWidth - aTotalFixedWidth;
// Step 3 - assign the width of all proportional-width columns in the remaining space
if (gsDebug==PR_TRUE) printf ("Step 2...\n availWidth = %d\n", availWidth);
if (TableIsAutoWidth())
{
if (gsDebug==PR_TRUE) printf (" calling BalanceProportionalColumnsForAutoWidthTable\n");
result = BalanceProportionalColumnsForAutoWidthTable(aPresContext,
availWidth, aMaxWidth,
aMinTableWidth, aMaxTableWidth);
}
else
{
if (gsDebug==PR_TRUE) printf (" calling BalanceProportionalColumnsForSpecifiedWidthTable\n");
result = BalanceProportionalColumnsForSpecifiedWidthTable(aPresContext,
availWidth, aMaxWidth,
aMinTableWidth, aMaxTableWidth);
}
result = BalanceProportionalColumns(aPresContext,
availWidth, aMaxWidth,
aMinTableWidth, aMaxTableWidth,
tableWidth);
return result;
}
@ -382,71 +476,58 @@ PRBool BasicTableLayoutStrategy::AssignFixedColumnWidths(nsIPresContext* aPresCo
return PR_TRUE;
}
PRBool BasicTableLayoutStrategy::BalanceProportionalColumnsForSpecifiedWidthTable(nsIPresContext* aPresContext,
PRInt32 aAvailWidth,
PRInt32 aMaxWidth,
PRInt32 aMinTableWidth,
PRInt32 aMaxTableWidth)
{
#ifdef DEBUG
nsIFrame *tablePIF=nsnull;
mTableFrame->GetPrevInFlow(tablePIF);
NS_ASSERTION(nsnull==tablePIF, "never ever call me on a continuing frame!");
#endif
PRBool result = PR_TRUE;
if (NS_UNCONSTRAINEDSIZE==aMaxWidth)
{ // the max width of the table fits comfortably in the available space
if (gsDebug) printf (" * table laying out in NS_UNCONSTRAINEDSIZE, calling BalanceColumnsTableFits\n");
result = BalanceColumnsTableFits(aPresContext, aAvailWidth);
}
else if (aMinTableWidth > aMaxWidth)
{ // the table doesn't fit in the available space
if (gsDebug) printf (" * min table does not fit, calling SetColumnsToMinWidth\n");
result = SetColumnsToMinWidth(aPresContext);
}
else if (aMaxTableWidth <= aMaxWidth)
{ // the max width of the table fits comfortably in the available space
if (gsDebug) printf (" * table desired size fits, calling BalanceColumnsTableFits\n");
result = BalanceColumnsTableFits(aPresContext, aAvailWidth);
}
else
{ // the table fits somewhere between its min and desired size
if (gsDebug) printf (" * table desired size does not fit, calling BalanceColumnsConstrained\n");
result = BalanceColumnsConstrained(aPresContext, aAvailWidth,
aMaxWidth, aMinTableWidth, aMaxTableWidth);
}
return result;
}
PRBool BasicTableLayoutStrategy::BalanceProportionalColumnsForAutoWidthTable( nsIPresContext* aPresContext,
PRInt32 aAvailWidth,
PRInt32 aMaxWidth,
PRInt32 aMinTableWidth,
PRInt32 aMaxTableWidth)
PRBool BasicTableLayoutStrategy::BalanceProportionalColumns(nsIPresContext* aPresContext,
PRInt32 aAvailWidth,
PRInt32 aMaxWidth,
PRInt32 aMinTableWidth,
PRInt32 aMaxTableWidth,
nscoord aTableFixedWidth)
{
PRBool result = PR_TRUE;
if (NS_UNCONSTRAINEDSIZE==aMaxWidth)
{ // the max width of the table fits comfortably in the available space
if (gsDebug) printf (" * table laying out in NS_UNCONSTRAINEDSIZE, calling BalanceColumnsTableFits\n");
result = BalanceColumnsTableFits(aPresContext, aAvailWidth);
}
else if (aMinTableWidth > aMaxWidth)
{ // the table doesn't fit in the available space
if (gsDebug) printf (" * min table does not fit, calling SetColumnsToMinWidth\n");
result = SetColumnsToMinWidth(aPresContext);
}
else if (aMaxTableWidth <= aMaxWidth)
{ // the max width of the table fits comfortably in the available space
if (gsDebug) printf (" * table desired size fits, calling BalanceColumnsTableFits\n");
result = BalanceColumnsTableFits(aPresContext, aAvailWidth);
if (0==aTableFixedWidth)
{
if (NS_UNCONSTRAINEDSIZE==aMaxWidth)
{ // the max width of the table fits comfortably in the available space
if (gsDebug) printf (" * table laying out in NS_UNCONSTRAINEDSIZE, calling BalanceColumnsTableFits\n");
result = BalanceColumnsTableFits(aPresContext, aAvailWidth, aTableFixedWidth);
}
else if (aMinTableWidth > aMaxWidth)
{ // the table doesn't fit in the available space
if (gsDebug) printf (" * min table does not fit, calling SetColumnsToMinWidth\n");
result = SetColumnsToMinWidth(aPresContext);
}
else if (aMaxTableWidth <= aMaxWidth)
{ // the max width of the table fits comfortably in the available space
if (gsDebug) printf (" * table desired size fits, calling BalanceColumnsTableFits\n");
result = BalanceColumnsTableFits(aPresContext, aAvailWidth, aTableFixedWidth);
}
else
{ // the table fits somewhere between its min and desired size
if (gsDebug) printf (" * table desired size does not fit, calling BalanceColumnsConstrained\n");
result = BalanceColumnsConstrained(aPresContext, aAvailWidth,
aMaxWidth, aMinTableWidth, aMaxTableWidth);
}
}
else
{ // the table fits somewhere between its min and desired size
if (gsDebug) printf (" * table desired size does not fit, calling BalanceColumnsConstrained\n");
result = BalanceColumnsConstrained(aPresContext, aAvailWidth,
aMaxWidth, aMinTableWidth, aMaxTableWidth);
{
if (aTableFixedWidth<aMinTableWidth)
{ // the table doesn't fit in the available space
if (gsDebug) printf (" * specified width table with width<minTableWidth, calling SetColumnsToMinWidth\n");
result = SetColumnsToMinWidth(aPresContext);
}
else if (aTableFixedWidth<aMaxTableWidth)
{ // the table's specified width is between it's min and max, so fit the columns in proportionately
if (gsDebug) printf (" * specified width table < maxTableWidth, calling BalanceColumnsConstrained\n");
result = BalanceColumnsConstrained(aPresContext, aAvailWidth,
aMaxTableWidth, aMinTableWidth, aMaxTableWidth);
}
else
{ // the table's specified width is >= its max width, so give each column its max requested size
if (gsDebug) printf (" * specified width table > maxTableWidth, calling BalanceColumnsTableFits\n");
result = BalanceColumnsTableFits(aPresContext, aAvailWidth, aTableFixedWidth);
}
}
return result;
}
@ -469,7 +550,7 @@ PRBool BasicTableLayoutStrategy::SetColumnsToMinWidth(nsIPresContext* aPresConte
// XXX need column frame to ask this question
nsStylePosition* colPosition = nsnull;
if (PR_TRUE==mTableFrame->IsProportionalWidth(colPosition))
if (PR_TRUE==IsProportionalWidth(colPosition))
{
for (PRInt32 cellIndex = 0; cellIndex<numCells; cellIndex++)
{ // this col has proportional width, so determine its width requirements
@ -493,25 +574,21 @@ PRBool BasicTableLayoutStrategy::SetColumnsToMinWidth(nsIPresContext* aPresConte
if (gsDebug==PR_TRUE)
{
printf (" for determining width of col %d %s:\n",
colIndex, mTableFrame->IsProportionalWidth(colPosition)? "(P)":"(A)");
colIndex, IsProportionalWidth(colPosition)? "(P)":"(A)");
printf (" minColWidth = %d and maxColWidth = %d\n", minColWidth, maxColWidth);
}
// XXX BUG: why are we asking this again? this if is already in a
// IsProportionalWidth == PR_TRUE case!
if (PR_TRUE==mTableFrame->IsProportionalWidth(colPosition))
{ // this col has proportional width, so set its width based on the table width
mTableFrame->SetColumnWidth(colIndex, minColWidth);
if (gsDebug==PR_TRUE)
printf (" 2: col %d, set to width = %d\n", colIndex, mTableFrame->GetColumnWidth(colIndex));
}
mTableFrame->SetColumnWidth(colIndex, minColWidth);
if (gsDebug==PR_TRUE)
printf (" 2: col %d, set to width = %d\n", colIndex, mTableFrame->GetColumnWidth(colIndex));
}
}
return result;
}
PRBool BasicTableLayoutStrategy::BalanceColumnsTableFits(nsIPresContext* aPresContext,
PRInt32 aAvailWidth)
PRInt32 aAvailWidth,
nscoord aTableFixedWidth)
{
#ifdef DEBUG
nsIFrame *tablePIF=nsnull;
@ -520,6 +597,8 @@ PRBool BasicTableLayoutStrategy::BalanceColumnsTableFits(nsIPresContext* aPresCo
#endif
PRBool result = PR_TRUE;
nscoord tableWidth=0;
nscoord numProportionalColumns = 0;
nsVoidArray *spanList=nsnull;
nsVoidArray *columnLayoutData = mTableFrame->GetColumnLayoutData();
PRInt32 numCols = columnLayoutData->Count();
@ -536,8 +615,9 @@ PRBool BasicTableLayoutStrategy::BalanceColumnsTableFits(nsIPresContext* aPresCo
// XXX Need columnFrame to ask the style question
nsStylePosition* colPosition = nsnull;
if (PR_TRUE==mTableFrame->IsProportionalWidth(colPosition))
if (PR_TRUE==IsProportionalWidth(colPosition))
{
numProportionalColumns++;
// first, deal with any cells that span into this column from a pervious column
if (nsnull!=spanList)
{
@ -603,59 +683,93 @@ PRBool BasicTableLayoutStrategy::BalanceColumnsTableFits(nsIPresContext* aPresCo
if (gsDebug==PR_TRUE)
{
printf (" for determining width of col %d %s:\n",
colIndex, mTableFrame->IsProportionalWidth(colPosition)? "(P)":"(A)");
colIndex, IsProportionalWidth(colPosition)? "(P)":"(A)");
printf (" minColWidth = %d and maxColWidth = %d\n", minColWidth, maxColWidth);
printf (" aAvailWidth = %d\n", aAvailWidth);
}
// XXX BUG: why are we asking this again? this if is already in a
// IsProportionalWidth == PR_TRUE case!
if (PR_TRUE==mTableFrame->IsProportionalWidth(colPosition))
{ // this col has proportional width, so set its width based on the table width
#if XXX_bug_kipp_about_this
if (0==colStyle->proportionalWidth)
{ // col width is specified to be the minimum
mTableFrame->SetColumnWidth(colIndex, minColWidth);
if (gsDebug==PR_TRUE)
printf (" 3 (0): col %d set to min width = %d because style set proportionalWidth=0\n",
colIndex, mTableFrame->GetColumnWidth(colIndex));
}
else // BUG? else? other code below has the else
if (0==colStyle->proportionalWidth)
{ // col width is specified to be the minimum
mTableFrame->SetColumnWidth(colIndex, minColWidth);
if (gsDebug==PR_TRUE)
printf (" 3 (0): col %d set to min width = %d because style set proportionalWidth=0\n",
colIndex, mTableFrame->GetColumnWidth(colIndex));
}
else // BUG? else? other code below has the else
#endif
if (PR_TRUE==AutoColumnWidths())
{ // give each remaining column it's desired width
// if there is width left over, we'll factor that in after this loop is complete
if (PR_TRUE==IsAutoWidth(colPosition))
{ // give each remaining column it's desired width
// if there is width left over, we'll factor that in after this loop is complete
mTableFrame->SetColumnWidth(colIndex, maxColWidth);
if (gsDebug==PR_TRUE)
printf (" 3a: col %d with availWidth %d, set to width = %d\n",
colIndex, aAvailWidth, mTableFrame->GetColumnWidth(colIndex));
}
else
{ // give each remaining column an equal percentage of the remaining space
PRInt32 percentage = -1;
if (NS_UNCONSTRAINEDSIZE==aAvailWidth)
{
mTableFrame->SetColumnWidth(colIndex, maxColWidth);
if (gsDebug==PR_TRUE)
printf (" 3a: col %d with availWidth %d, set to width = %d\n",
colIndex, aAvailWidth, mTableFrame->GetColumnWidth(colIndex));
}
else
{ // give each remaining column an equal percentage of the remaining space
PRInt32 percentage = -1;
if (NS_UNCONSTRAINEDSIZE==aAvailWidth)
{
mTableFrame->SetColumnWidth(colIndex, maxColWidth);
}
else
{
{
#if XXX_bug_kipp_about_this
percentage = colStyle->proportionalWidth;
if (-1==percentage)
percentage = colStyle->proportionalWidth;
if (-1==percentage)
#endif
percentage = 100/numCols;
mTableFrame->SetColumnWidth(colIndex, (percentage*aAvailWidth)/100);
// if the column was computed to be too small, enlarge the column
if (mTableFrame->GetColumnWidth(colIndex) <= minColWidth)
mTableFrame->SetColumnWidth(colIndex, minColWidth);
}
if (gsDebug==PR_TRUE)
printf (" 3b: col %d given %d percent of availWidth %d, set to width = %d\n",
colIndex, percentage, aAvailWidth, mTableFrame->GetColumnWidth(colIndex));
percentage = 100/numCols;
mTableFrame->SetColumnWidth(colIndex, (percentage*aAvailWidth)/100);
// if the column was computed to be too small, enlarge the column
if (mTableFrame->GetColumnWidth(colIndex) <= minColWidth)
mTableFrame->SetColumnWidth(colIndex, minColWidth);
}
if (gsDebug==PR_TRUE)
printf (" 3b: col %d given %d percent of availWidth %d, set to width = %d\n",
colIndex, percentage, aAvailWidth, mTableFrame->GetColumnWidth(colIndex));
}
}
tableWidth += mTableFrame->GetColumnWidth(colIndex);
}
// post-process if necessary
// if the specified width of the table is greater than the table's computed width, expand the
// table's computed width to match the specified width, giving the extra space to proportionately-sized
// columns if possible.
if (aTableFixedWidth > tableWidth)
{
nscoord excess = aTableFixedWidth - tableWidth;
// if there are proportionally-sized columns, give them the extra space
if (0!=numProportionalColumns)
{
nscoord excessPerColumn = excess/numProportionalColumns;
if (gsDebug==PR_TRUE) printf(" aTableFixedWidth specified as %d, expanding columns by excess = %d\n", aTableFixedWidth, excess);
for (PRInt32 colIndex = 0; colIndex<numCols; colIndex++)
{
// need the column style here!
if (PR_TRUE==IsProportionalWidth(nsnull))
{
nscoord colWidth = excessPerColumn+mTableFrame->GetColumnWidth(colIndex);
mTableFrame->SetColumnWidth(colIndex, colWidth);
}
}
}
// otherwise, distribute the space evenly between all the columns
else
{
nscoord excessPerColumn = excess/numCols;
if (gsDebug==PR_TRUE) printf(" aTableFixedWidth specified as %d, expanding columns by excess = %d\n", aTableFixedWidth, excess);
for (PRInt32 colIndex = 0; colIndex<numCols; colIndex++)
{
nscoord colWidth = excessPerColumn+mTableFrame->GetColumnWidth(colIndex);
mTableFrame->SetColumnWidth(colIndex, colWidth);
}
}
}
if (nsnull!=spanList)
delete spanList;
return result;
@ -674,6 +788,7 @@ PRBool BasicTableLayoutStrategy::BalanceColumnsConstrained( nsIPresContext* aPre
#endif
PRBool result = PR_TRUE;
PRBool equalWidthColumns=PR_FALSE; // TODO: compute this via style system
PRInt32 maxOfAllMinColWidths = 0;
nsVoidArray *spanList=nsnull;
nsVoidArray *columnLayoutData = mTableFrame->GetColumnLayoutData();
@ -697,7 +812,7 @@ PRBool BasicTableLayoutStrategy::BalanceColumnsConstrained( nsIPresContext* aPre
PRInt32 numCells = cells->Count();
if (gsDebug==PR_TRUE) printf (" for col %d\n", colIndex);
if (PR_TRUE==mTableFrame->IsProportionalWidth(colPosition))
if (PR_TRUE==IsProportionalWidth(colPosition))
{
// first, deal with any cells that span into this column from a pervious column
if (nsnull!=spanList)
@ -758,60 +873,64 @@ PRBool BasicTableLayoutStrategy::BalanceColumnsConstrained( nsIPresContext* aPre
if (gsDebug==PR_TRUE)
{
printf (" for determining width of col %d %s:\n",
colIndex, mTableFrame->IsProportionalWidth(colPosition)? "(P)":"(A)");
colIndex, IsProportionalWidth(colPosition)? "(P)":"(A)");
printf (" minTableWidth = %d and maxTableWidth = %d\n", aMinTableWidth, aMaxTableWidth);
printf (" minColWidth = %d and maxColWidth = %d\n", minColWidth, maxColWidth);
printf (" aAvailWidth = %d\n", aAvailWidth);
}
// XXX BUG: why are we asking this again? this if is already in a
// IsProportionalWidth == PR_TRUE case!
if (PR_TRUE==mTableFrame->IsProportionalWidth(colPosition))
{ // this col has proportional width, so set its width based on the table width
// the table fits in the space somewhere between its min and max size
// so dole out the available space appropriately
// this col has proportional width, so set its width based on the table width
// the table fits in the space somewhere between its min and max size
// so dole out the available space appropriately
#if XXX_bug_kipp_about_this
if (0==colStyle->proportionalWidth)
{ // col width is specified to be the minimum
mTableFrame->SetColumnWidth(colIndex, minColWidth);
if (gsDebug==PR_TRUE)
printf (" 4 (0): col %d set to min width = %d because style set proportionalWidth=0\n",
colIndex, mTableFrame->GetColumnWidth(colIndex));
}
else
if (0==colStyle->proportionalWidth)
{ // col width is specified to be the minimum
mTableFrame->SetColumnWidth(colIndex, minColWidth);
if (gsDebug==PR_TRUE)
printf (" 4 (0): col %d set to min width = %d because style set proportionalWidth=0\n",
colIndex, mTableFrame->GetColumnWidth(colIndex));
}
else
#endif
if (AutoColumnWidths())
if (1==numCols)
{ // there is only one column, so it should be as wide as the available space allows it to be
if (gsDebug==PR_TRUE) printf (" 4 one-column: col %d set to width = %d\n", colIndex, aAvailWidth);
mTableFrame->SetColumnWidth(colIndex, aAvailWidth);
}
else if (IsAutoWidth(colPosition))
{ // column's width is determined by its content
PRUint32 W = aMaxWidth - aMinTableWidth;
PRUint32 D = aMaxTableWidth - aMinTableWidth;
if (0==D) // fixed-size table
D=1;
PRUint32 d = maxColWidth - minColWidth;
PRInt32 width = (d*W)/D;
mTableFrame->SetColumnWidth(colIndex, minColWidth + width);
if (gsDebug==PR_TRUE)
printf (" 4 auto-width: col %d W=%d D=%d d=%d, set to width = %d\n",
colIndex, W, D, d, mTableFrame->GetColumnWidth(colIndex));
}
else
{ // give each remaining column an equal percentage of the remaining space
#if XXX_bug_kipp_about_this
PRInt32 percentage = colStyle->proportionalWidth;
if (-1==percentage)
#endif
PRInt32 percentage = 100/numCols;
mTableFrame->SetColumnWidth(colIndex, (percentage*aAvailWidth)/100);
// if the column was computed to be too small, enlarge the column
if (mTableFrame->GetColumnWidth(colIndex) <= minColWidth)
{
PRInt32 W = aMaxWidth - aMinTableWidth;
PRInt32 D = aMaxTableWidth - aMinTableWidth;
PRInt32 d = maxColWidth - minColWidth;
mTableFrame->SetColumnWidth(colIndex, minColWidth + ((d*W)/D));
if (gsDebug==PR_TRUE)
printf (" 4 auto-width: col %d W=%d D=%d d=%d, set to width = %d\n",
colIndex, W, D, d, mTableFrame->GetColumnWidth(colIndex));
mTableFrame->SetColumnWidth(colIndex, minColWidth);
if (maxOfAllMinColWidths < minColWidth)
maxOfAllMinColWidths = minColWidth;
}
else
{ // give each remaining column an equal percentage of the remaining space
#if XXX_bug_kipp_about_this
PRInt32 percentage = colStyle->proportionalWidth;
if (-1==percentage)
#endif
PRInt32 percentage = 100/numCols;
mTableFrame->SetColumnWidth(colIndex, (percentage*aAvailWidth)/100);
// if the column was computed to be too small, enlarge the column
if (mTableFrame->GetColumnWidth(colIndex) <= minColWidth)
{
mTableFrame->SetColumnWidth(colIndex, minColWidth);
if (maxOfAllMinColWidths < minColWidth)
maxOfAllMinColWidths = minColWidth;
}
if (gsDebug==PR_TRUE)
{
printf (" 4 equal width: col %d given %d percent of availWidth %d, set to width = %d\n",
colIndex, percentage, aAvailWidth, mTableFrame->GetColumnWidth(colIndex));
if (0!=maxOfAllMinColWidths)
printf(" and setting maxOfAllMins to %d\n", maxOfAllMinColWidths);
}
if (gsDebug==PR_TRUE)
{
printf (" 4 equal width: col %d given %d percent of availWidth %d, set to width = %d\n",
colIndex, percentage, aAvailWidth, mTableFrame->GetColumnWidth(colIndex));
if (0!=maxOfAllMinColWidths)
printf(" and setting maxOfAllMins to %d\n", maxOfAllMinColWidths);
}
}
}
@ -821,7 +940,7 @@ PRBool BasicTableLayoutStrategy::BalanceColumnsConstrained( nsIPresContext* aPre
// if columns have equal width, and some column's content couldn't squeeze into the computed size,
// then expand every column to the min size of the column with the largest min size
if (!AutoColumnWidths() && 0!=maxOfAllMinColWidths)
if (equalWidthColumns && 0!=maxOfAllMinColWidths)
{
if (gsDebug==PR_TRUE) printf(" EqualColWidths specified, so setting all col widths to %d\n", maxOfAllMinColWidths);
for (PRInt32 colIndex = 0; colIndex<numCols; colIndex++)

55
layout/tables/BasicTableLayoutStrategy.h
Просмотреть файл

@ -21,8 +21,10 @@
#include "nscore.h"
#include "nsITableLayoutStrategy.h"
#include "nscoord.h"
class nsTableFrame;
struct nsStylePosition;
/* ----------- SpanInfo ---------- */
@ -54,12 +56,14 @@ public:
~BasicTableLayoutStrategy();
virtual PRBool BalanceColumnWidths(nsIPresContext* aPresContext,
nsIStyleContext *aTableStyle,
PRInt32 aMaxWidth,
PRInt32 aNumCols,
PRInt32 &aTotalFixedWidth,
PRInt32 &aMinTableWidth,
PRInt32 &aMaxTableWidth,
nsSize* aMaxElementSize);
/** assign widths for each column that has fixed width.
* Computes the minimum and maximum table widths.
* Sets mColumnWidths as a side effect.
@ -83,27 +87,6 @@ public:
PRInt32 & aMinTableWidth,
PRInt32 & aMaxTableWidth);
/** assign widths for each column that has proportional width inside a table that
* has a fixed width.
* Sets mColumnWidths as a side effect.
*
* @param aPresContext the presentation context
* @param aTableStyle the resolved style for the table
* @param aAvailWidth the remaining amount of horizontal space available
* @param aMaxWidth the total amount of horizontal space available
* @param aMinTableWidth the min possible table width
* @param aMaxTableWidth the max table width
*
* @return PR_TRUE if all is well, PR_FALSE if there was an unrecoverable error
*
* TODO: rename this method to reflect that it is a Nav4 compatibility method
*/
virtual PRBool BalanceProportionalColumnsForSpecifiedWidthTable(nsIPresContext* aPresContext,
PRInt32 aAvailWidth,
PRInt32 aMaxWidth,
PRInt32 aMinTableWidth,
PRInt32 aMaxTableWidth);
/** assign widths for each column that has proportional width inside a table that
* has auto width (width set by the content and available space.)
* Sets mColumnWidths as a side effect.
@ -117,13 +100,13 @@ public:
*
* @return PR_TRUE if all is well, PR_FALSE if there was an unrecoverable error
*
* TODO: rename this method to reflect that it is a Nav4 compatibility method
*/
virtual PRBool BalanceProportionalColumnsForAutoWidthTable(nsIPresContext* aPresContext,
PRInt32 aAvailWidth,
PRInt32 aMaxWidth,
PRInt32 aMinTableWidth,
PRInt32 aMaxTableWidth);
virtual PRBool BalanceProportionalColumns(nsIPresContext* aPresContext,
PRInt32 aAvailWidth,
PRInt32 aMaxWidth,
PRInt32 aMinTableWidth,
PRInt32 aMaxTableWidth,
nscoord aTableFixedWidth);
/** assign the minimum allowed width for each column that has proportional width.
* Typically called when the min table width doesn't fit in the available space.
@ -140,13 +123,15 @@ public:
* Sets mColumnWidths as a side effect.
*
* @param aPresContext the presentation context
* @param aTableStyle the resolved style for the table
* @param aAvailWidth the remaining amount of horizontal space available
*
* @param aTableFixedWidth the specified width of the table. If there is none,
* this param is 0
*
* @return PR_TRUE if all is well, PR_FALSE if there was an unrecoverable error
*/
virtual PRBool BalanceColumnsTableFits(nsIPresContext* aPresContext,
PRInt32 aAvailWidth);
PRInt32 aAvailWidth,
nscoord aTableFixedWidth);
/** assign widths for each column that has proportional width inside a table that
* has auto width (width set by the content and available space) according to the
@ -170,6 +155,16 @@ public:
PRInt32 aMinTableWidth,
PRInt32 aMaxTableWidth);
/** return true if the style indicates that the width is proportional
* for the purposes of column width determination
*/
virtual PRBool IsProportionalWidth(nsStylePosition* aStylePosition);
virtual PRBool IsAutoWidth(nsStylePosition* aStylePosition);
virtual PRBool TableIsAutoWidth(nsIStyleContext *aTableStyle, nscoord & aSpecifiedTableWidth);
protected:
nsTableFrame * mTableFrame;

39
layout/tables/nsITableLayoutStrategy.h
Просмотреть файл

@ -23,6 +23,7 @@
#include "nsSize.h"
class nsIPresContext;
class nsIStyleContext;
class nsITableLayoutStrategy
{
@ -36,6 +37,7 @@ public:
* @param aMaxElementSize the min size of the largest indivisible object
*/
virtual PRBool BalanceColumnWidths(nsIPresContext* aPresContext,
nsIStyleContext *aTableStyle,
PRInt32 maxWidth,
PRInt32 aNumCols,
PRInt32 &aTotalFixedWidth,
@ -66,26 +68,7 @@ public:
PRInt32 & aMinTableWidth,
PRInt32 & aMaxTableWidth)=0;
/** assign widths for each column that has proportional width inside a table that
* has a fixed width.
* Sets mColumnWidths as a side effect.
*
* @param aPresContext the presentation context
* @param aTableStyle the resolved style for the table
* @param aAvailWidth the remaining amount of horizontal space available
* @param aMaxWidth the total amount of horizontal space available
* @param aMinTableWidth the min possible table width
* @param aMaxTableWidth the max table width
*
* @return PR_TRUE if all is well, PR_FALSE if there was an unrecoverable error
*
* TODO: rename this method to reflect that it is a Nav4 compatibility method
*/
virtual PRBool BalanceProportionalColumnsForSpecifiedWidthTable(nsIPresContext* aPresContext,
PRInt32 aAvailWidth,
PRInt32 aMaxWidth,
PRInt32 aMinTableWidth,
PRInt32 aMaxTableWidth)=0;
/** assign widths for each column that has proportional width inside a table that
* has auto width (width set by the content and available space.)
@ -99,14 +82,13 @@ public:
* @param aMaxTableWidth the max table width
*
* @return PR_TRUE if all is well, PR_FALSE if there was an unrecoverable error
*
* TODO: rename this method to reflect that it is a Nav4 compatibility method
*/
virtual PRBool BalanceProportionalColumnsForAutoWidthTable(nsIPresContext* aPresContext,
PRInt32 aAvailWidth,
PRInt32 aMaxWidth,
PRInt32 aMinTableWidth,
PRInt32 aMaxTableWidth)=0;
virtual PRBool BalanceProportionalColumns(nsIPresContext* aPresContext,
PRInt32 aAvailWidth,
PRInt32 aMaxWidth,
PRInt32 aMinTableWidth,
PRInt32 aMaxTableWidth,
nscoord aTableFixedWidth)=0;
/** assign the minimum allowed width for each column that has proportional width.
* Typically called when the min table width doesn't fit in the available space.
@ -129,7 +111,8 @@ public:
* @return PR_TRUE if all is well, PR_FALSE if there was an unrecoverable error
*/
virtual PRBool BalanceColumnsTableFits(nsIPresContext* aPresContext,
PRInt32 aAvailWidth)=0;
PRInt32 aAvailWidth,
nscoord aTableFixedWidth)=0;
/** assign widths for each column that has proportional width inside a table that
* has auto width (width set by the content and available space) according to the

31
layout/tables/nsTableFrame.cpp
Просмотреть файл

@ -1571,7 +1571,8 @@ void nsTableFrame::BalanceColumnWidths(nsIPresContext* aPresContext,
{ // TODO: build a different strategy based on the compatibility mode
mTableLayoutStrategy = new BasicTableLayoutStrategy(this);
}
mTableLayoutStrategy->BalanceColumnWidths(aPresContext, maxWidth, numCols,
mTableLayoutStrategy->BalanceColumnWidths(aPresContext, mStyleContext,
maxWidth, numCols,
totalFixedWidth, minTableWidth, maxTableWidth,
aMaxElementSize);
@ -1864,34 +1865,6 @@ void nsTableFrame::ShrinkWrapChildren(nsIPresContext* aPresContext,
#endif
}
// XXX Kipp wonders: what does this really mean? Are you really asking
// "Is it fixed width"? If so, then VALUE_PCT may be wrong and the
// name of the method should be changed.
PRBool nsTableFrame::IsProportionalWidth(nsStylePosition* aStylePosition)
{
PRBool result = PR_FALSE;
if (nsnull == aStylePosition) {
// Assume NS_STYLE_POSITION_VALUE_AUTO when no style is available
result = PR_TRUE;
}
else {
switch (aStylePosition->mWidth.GetUnit()) {
case eStyleUnit_Coord:
case eStyleUnit_Percent:
break;
default:
case eStyleUnit_Auto:
case eStyleUnit_Inherit:
case eStyleUnit_Proportional:
result = PR_TRUE;
break;
}
}
return result;
}
void nsTableFrame::VerticallyAlignChildren(nsIPresContext* aPresContext,
nscoord* aAscents,
nscoord aMaxAscent,

6
layout/tables/nsTableFrame.h
Просмотреть файл

@ -124,12 +124,6 @@ public:
* otherwise, the data is returned.
*/
virtual nsCellLayoutData * GetCellLayoutData(nsTableCell *aCell);
/** returns PR_TRUE if this table has proportional width
*/
PRBool IsProportionalWidth(nsStylePosition* aStylePosition);
/**
* DEBUG METHOD