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1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 | /box-table-apply-colspans { % => MaxWC MinWC WidthFun Context Widths This
dup box-table-get-colspans { % => MaxWC MinWC WidthFun Context Widths This Colspan
dup cellspan-get-row
1 index cellspan-get-column
3 index box-table-get-cell % => MaxWC MinWC WidthFun Context Widths This Colspan Cell
% apply colspans to the corresponsing colspanned-cell dimension
4 index 1 index
7 index call-method % => MaxWC MinWC WidthFun Context Widths This Colspan Cell CellWidth
% Apply cell constraint width, if any AND if table width is constrained
% if table width is not constrained, we should not do this, as current value
% of $table->get_width is maximal width (parent width), not the actual
% width of the table
1 index get-width-constraint
dup /type get /none ne { % => MaxWC MinWC WidthFun Context Widths This Colspan Cell CellWidth WC
4 index /get-width call-method
2 index
2 index
dup /apply get exec % => MaxWC MinWC WidthFun Context Widths This Colspan Cell CellWidth WC CellWidth'
exch pop
exch pop
} { pop } ifelse % => MaxWC MinWC WidthFun Context Widths This Colspan Cell CellWidth'
% now select the pre-calculated widths of columns covered by this cell
% select the list of resizable columns covered by this cell
[] [] % => MaxWC MinWC WidthFun Context Widths This Colspan Cell CellWidth' SpannedWidth SpannedRezisable
4 index cellspan-get-column
1
6 index cellspan-get-column
7 index cellspan-get-size add
1 sub { % => MaxWC MinWC WidthFun Context Widths This Colspan Cell CellWidth'
% SpannedWidth SpannedRezisable I
7 index 1 index get % => MaxWC MinWC WidthFun Context Widths This Colspan Cell CellWidth'
% SpannedWidth SpannedRezisable I Widths[i]
4 3 roll array-prepend
3 1 roll % => MaxWC MinWC WidthFun Context Widths This Colspan Cell CellWidth'
% SpannedWidth' SpannedRezisable I
11 index 1 index get % => MaxWC MinWC WidthFun Context Widths This Colspan Cell CellWidth'
% SpannedWidth' SpannedRezisable I MaxWC[i]
11 index 2 index get % => MaxWC MinWC WidthFun Context Widths This Colspan Cell CellWidth'
% SpannedWidth' SpannedRezisable I MaxWC[i] MinWC[i]
ne % => MaxWC MinWC WidthFun Context Widths This Colspan Cell CellWidth'
% SpannedWidth' SpannedRezisable I MaxWC[i]<>MinWC[i]
exch pop
exch array-prepend % => MaxWC MinWC WidthFun Context Widths This Colspan Cell CellWidth'
% SpannedWidth' SpannedRezisable'
} for % => MaxWC MinWC WidthFun Context Widths This Colspan Cell CellWidth'
% SpannedWidth' SpannedRezisable'
% Sometimes we may encounter the colspan over the empty columns (I mean ALL columns are empty); in this case
% we need to make these columns reizable in order to fit colspanned cell contents
1 index sum 0 eq { % => MaxWC MinWC WidthFun Context Widths This Colspan Cell CellWidth'
% SpannedWidth' SpannedRezisable'
0 1 2 index length 1 sub { % => MaxWC MinWC WidthFun Context Widths This Colspan Cell CellWidth'
% SpannedWidth' SpannedRezisable' I
2 index 1 index rounding-epsilon put
1 index 1 index true put
pop
} for
} if % => MaxWC MinWC WidthFun Context Widths This Colspan Cell CellWidth'
% SpannedWidth' SpannedRezisable'
% The same problem may arise when all colspanned columns are not resizable; in this case we'll force all
% of them to be resized
{ or } false 2 index reduce % => MaxWC MinWC WidthFun Context Widths This Colspan Cell CellWidth'
% SpannedWidth' SpannedRezisable' AnyResizable
not {
0 1 2 index length 1 sub { % => MaxWC MinWC WidthFun Context Widths This Colspan Cell CellWidth'
% SpannedWidth' SpannedRezisable' I
1 index 1 index true put
pop
} for
} if % => MaxWC MinWC WidthFun Context Widths This Colspan Cell CellWidth'
% SpannedWidth' SpannedRezisable'
% Expand resizable columns
expand-to-with-flags % => MaxWC MinWC WidthFun Context Widths This Colspan Cell SpannedWidths'
% Store modified widths
4 index
3 index cellspan-get-column
2 index
putinterval % => MaxWC MinWC WidthFun Context Widths This Colspan Cell SpannedWidths'
pop pop pop
} forall % => MaxWC MinWC WidthFun Context Widths' This
pop
exch pop
exch pop
exch pop
exch pop
} def % => Widths
/box-table-columns-fit { % => Context Width Table
2 index
1 index
box-table-get-table-columns-min-widths % => Context Width Table MinW
3 index
2 index
box-table-get-table-columns-max-widths % => Context Width Table MinW MaxW
% Store number of columns
dup length % => Context Width Table MinW MaxW Columns
% Apply column width constraints
[] [] % => Context Width Table MinW MaxW Columns MinWC MaxWC
0 1 4 index 1 sub { % => Context Width Table MinW MaxW Columns MinWC MaxWC I
dup 7 index
box-table-get-cwc % => Context Width Table MinW MaxW Columns MinWC MaxWC I CWC
% Do not allow constrained max width be less than min width
% Do not allow constrained min width be less than min width
7 index /get-width call-method % => Context Width Table MinW MaxW Columns MinWC MaxWC I CWC ThisWidth
8 index /cellpadding get-css-value 2 mul
9 index /cellspacing get-css-value add
% => Context Width Table MinW MaxW Columns MinWC MaxWC I CWC ThisWidth Extra
8 index 4 index get % => Context Width Table MinW MaxW Columns MinWC MaxWC I CWC ThisWidth Extra MinW[i]
1 index sub
2 index 1 index 5 index
dup /apply get exec % => Context Width Table MinW MaxW Columns MinWC MaxWC I CWC ThisWidth Extra MinW[i] MinW[i]'
2 index add
max % => Context Width Table MinW MaxW Columns MinWC MaxWC I CWC ThisWidth Extra MinW[i]''
7 6 roll array-prepend
6 1 roll % => Context Width Table MinW MaxW Columns MinWC' MaxWC I CWC ThisWidth Extra
8 index 4 index get % => Context Width Table MinW MaxW Columns MinWC MaxWC I CWC ThisWidth Extra MinW[i]
1 index sub
2 index 1 index 5 index
dup /apply get exec % => Context Width Table MinW MaxW Columns MinWC MaxWC I CWC ThisWidth Extra MinW[i] MaxW[i]'
2 index add
max % => Context Width Table MinW MaxW Columns MinWC MaxWC I CWC ThisWidth Extra MaxW[i]''
6 5 roll array-prepend
5 1 roll % => Context Width Table MinW MaxW Columns MinWC MaxWC' I CWC ThisWidth Extra
pop pop pop pop % => Context Width Table MinW MaxW Columns MinWC MaxWC
} for
1 index 5 index 8 index 8 index
box-table-normalize-min-widths % => Context Width Table MinW MaxW Columns MinWC MaxWC MinWC'
3 2 roll pop exch % => Context Width Table MinW MaxW Columns MinWC' MaxWC
dup
2 index
/get-min-width
10 index
5 index
10 index
box-table-apply-colspans % => Context Width Table MinW MaxW Columns MinWC MaxWC MinWC'
3 2 roll pop exch % => Context Width Table MinW MaxW Columns MinWC' MaxWC
% We need to normalize widths for the case of colspans width is too much; for example:
% <table><tr><td width="100">
% <table><tr><td width="150">TEXT<td>TEXT<tr><td colspan="2" width="200">
% in this case table SHOULD NOT be expanded over the 100px!
1 index
5 index
8 index
8 index
box-table-normalize-min-widths % => Context Width Table MinW MaxW Columns MinWC' MaxWC MinWC'
3 2 roll pop exch
dup
2 index
/get-max-width
10 index
4 index
10 index
box-table-apply-colspans % => Context Width Table MinW MaxW Columns MinWC MaxWC MaxWC'
exch pop % => Context Width Table MinW MaxW Columns MinWC' MaxWC
% Calculate actual widths
% Calculate widths for all constrained columns
[]
0 1 5 index 1 sub { % => Context Width Table MinW MaxW Columns MinWC' MaxWC Widths I
dup 8 index
box-table-is-constrained-column {
3 index exch get
exch array-prepend % => Context Width Table MinW MaxW Columns MinWC' MaxWC Widths'
} { % => Context Width Table MinW MaxW Columns MinWC' MaxWC Widths I
pop 0 exch array-prepend % => Context Width Table MinW MaxW Columns MinWC' MaxWC Widths'
} ifelse
} for % => Context Width Table MinW MaxW Columns MinWC' MaxWC Widths'
% Quick fix for overconstrained tables: if table have width attribute AND its value is less than sum
% of constrained columns widths plus minimal widths of uncostrained columns, then we'll expand the width of table
% to fit all columns
% 1. calculate sum of constrained column widths
% 2. calculate sum of unconstrained column minimal widths
0 0 % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths SumCW SumUCW
0 1 7 index 1 sub { % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths SumCW SumUCW I
dup 10 index box-table-is-constrained-column {
3 index 1 index get % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths SumCW SumUCW I W
4 3 roll add 3 1 roll % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths SumCW' SumUCW I
} {
5 index 1 index get % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths SumCW SumUCW I CW
3 2 roll add exch % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths SumCW SumUCW' I
} ifelse
pop
} for % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths SumCW SumUCW
% 3. compare these widths with the table width and choose the maximal value
add
8 index max % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths Width'
9 8 roll pop 8 1 roll % => Context Width' Table MinW MaxW Columns MinWC MaxWC Widths
% Second pass - disctribute the rest of the width
% Explanation of the stuff below (I've really had problems with this small piece of code, especially
% when I was trying to fix "bugs" inside it)
%
% First of all, no column can be narrower than it minimal width (determined by its content)
% Note that constrained columns have their widths distributed above, so we can exclude them for now
% (just throw them out and imagine that table does not contain any width-constrained cols)
%
% Second, the relative widths of columns will have _appoximately_ the same ratio as
% their maximal content widths. (In exception of cases where the first rule will take place -
% say for the table containing two columns with the VERY long text in the first and one or two words
% in the second)
%
% In general, this approach can be inoptimal in case of _very_ different font sizes
% inside the cells, of, say big images; nevertheless, it will give a good approximate
% AND still fast enough (unlike fully correct methods involving evaluation of the content height of the cell)
%
% Thus, we do the following:
% - calculate the ratio of current column MAXIMAL ($current_max) width to the sum of MAXIMAL widths of all columns left
% (inluding current) second rule applied. Note that we need remember about column spans and select
% maxw or maxwc in order.
% - then check if the rest of width will be too small for other columns to fit and decrease current columns
% width (see MIN function call)
% - then check again if our width will be too small for current column to fit (and expand if nesessary) -
% MAX function call
% => Context Width Table MinW MaxW Columns MinWC MaxWC Widths
0 1 5 index 1 sub { % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths I
dup 8 index
box-table-is-constrained-column not {
% Get undistributed width (total table width - width of constrained columns)
8 index 2 index sum sub % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths I Rest
% get max width of column being processed
% If width is equal to zero, use max constrained width, as this column could be covered by colspan;
% If not, we lose nothing, because all constrained columns are already processed earlier, and no more
% columns except these two types can have different constrained and raw widths
6 index 2 index get
4 index 3 index get max % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths I Rest CurrentMax
% Get sum of maximal constrained widths of unplaced columns
0 0 % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths I Rest CurrentMax
% SumMaxCW SumMinCW
0 1 10 index 1 sub { % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths I Rest CurrentMax
% SumMaxCW SumMinCW J
6 index 1 index get 0 eq {
10 index 1 index get
8 index 2 index get
max % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths I Rest CurrentMax
% SumMaxCW SumMinCW J DSumMaxCW
4 3 roll add 3 1 roll % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths I Rest CurrentMax
% SumMaxCW' SumMinCW J
11 index 1 index get
9 index 2 index get
max % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths I Rest CurrentMax
% SumMaxCW SumMinCW J DSumMinCW
3 2 roll add exch % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths I Rest CurrentMax
% SumMaxCW SumMinCW' J
} if % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths I Rest CurrentMax
% SumMaxCW SumMinCW J
pop
} for % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths I Rest CurrentMax
% SumMaxCW SumMinCW
% If some unplaced columns have maximal (constrained width) greater zero
1 index 0 gt { % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths I Rest CurrentMax
% SumMaxCW SumMinCW
10 index 5 index get
8 index 6 index get max % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths I Rest CurrentMax
% SumMaxCW SumMinCW max($minwc[$i],$minw[$i]))
1 index sub
4 index add % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths I Rest CurrentMax
% SumMaxCW SumMinCW ($rest-$sum_min_cw+max($minwc[$i],$minw[$i]))
3 index
5 index mul
3 index div
min % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths I Rest CurrentMax
% SumMaxCW SumMinCW CurrentMax'
exch pop
exch pop
exch pop
exch pop % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths I CurrentMax'
} {
pop pop exch pop
} ifelse % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths I CurrentMax
% Check for minimal width (either unconstrained or constrained) of current column
7 index 2 index get 0 eq { % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths I CurrentMax
4 index 2 index get
} {
7 index 2 index get
} ifelse
max % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths I CurrentMax'
% Store calculated width
2 index exch
2 index exch
put % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths' I
} if % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths I CurrentMax
pop
} for % => Context Width' Table MinW MaxW Columns MinWC MaxWC Widths
% Process the case of a lone empty table cell (used, for example, for its background color)
% as we're using floating point numbers, we cannot use equals sign
dup sum rounding-epsilon lt {
0 1 2 index length 1 sub { % => Context Width' Table MinW MaxW Columns MinWC MaxWC Widths I
1 index exch % => Context Width' Table MinW MaxW Columns MinWC MaxWC I Widths
rounding-epsilon
put % => Context Width' Table MinW MaxW Columns MinWC MaxWC Widths
} for
} if % => Context Width' Table MinW MaxW Columns MinWC MaxWC Widths
% now - the last attempt; if total width is less than box width, then we have a situation when either
% all columns AND table are width constrained or the HTML similer to the following:
%
% <table cellpadding="0" width="100%" bgcolor="green"><tbody><tr>
% <td colspan="2" bgcolor="yellow"></td>
% <td style="width: 100px;" bgcolor="cyan">TEXT
%
% e.g. empty column (with zero width) and fixed-width column.
dup sum 8 index lt { % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths
% Let's make zero-width columns
% non-zero width (so that they columb expanded) and re-try expanding columns
0 1 2 index length 1 sub { % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths I
1 index 1 index get 0 eq {
1 index 1 index rounding-epsilon put
} if
pop
} for % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths
7 index
1 index
8 index box-table-get-non-constrained-width-flags
expand-to-with-flags % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths Widths'
exch pop
} if % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths
% in case of overconstrained table (e.g. two columns with 20% widths), expand them
7 index
1 index expand-to
exch pop % => Context Width Table MinW MaxW Columns MinWC MaxWC Widths'
exch pop
exch pop
exch pop
exch pop
exch pop
exch pop
exch pop
exch pop
} def
/box-table-column-widths { % => Context Table
1 index
1 index /get-width call-method
2 index box-table-columns-fit % => Context Table Widths
exch pop
exch pop
} def
/box-table-count-cols {
get-content 0 get
get-content length
} def
/box-table-count-rows {
get-content length
} def
/box-table-create { % =>
box-container-create % => Box
dup box-table-setup-methods
dup /box-table add-type
% List of column width constraints
dup [] box-table-put-cwc-list
dup [] box-table-put-rhc-list
} def
/box-table-fit-rowspans { % => Heights Table
% Scan all cells spanning several rows
dup box-table-get-rowspans % => Heights Table Rowspans
{ % => Heights Table Rowspan
dup cellspan-get-row
1 index cellspan-get-column % => Heights Table Rowspan RsRow RsCol
3 index box-table-get-cell % => Heights Table Rowspan Cell
% now check if cell height is less than sum of spanned rows heights
3 index
2 index cellspan-get-row
3 index cellspan-get-size
getinterval % => Heights Table Rowspan Cell RowHeights
sum % => Heights Table Rowspan Cell RowHeightsSum
dup 2 index get-full-height gt {
% Vertical-align current cell
% calculate (approximate) row baseline
3 index get-content % => Heights Table Rowspan Cell RowHeightsSum Rows
3 index cellspan-get-row get % => Heights Table Rowspan Cell RowHeightsSum Row
box-table-row-get-baseline % => Heights Table Rowspan Cell RowHeightsSum RowBaseline
% apply vertical-align
1 index 3 index % => Heights Tablw Rowspan Cell RowHeightsSum Baseline RowHeightsSum Cell
box-table-cell-apply-vertical-align
% => Heights Tablw Rowspan Cell RowHeightsSum
% Make cell fill all available vertical space
dup 2 index put-full-height % => Heights Tablw Rowspan Cell RowHeightsSum
} if % => Heights Table Rowspan Cell RowHeightsSum
pop pop pop
} forall % => Heights Table
pop pop
} def
/box-table-get-cell { % => Y X Table
dup get-content
3 index get % => Y X Table Row
get-content
2 index get % => Y X Table Cell
exch pop
exch pop
exch pop
} def
/box-table-get-colspans { % => Table
[]
0
2 index get-content % => Table RS I Rows
{ % => Table RS I Row
1 index exch
box-table-row-get-colspans % => Table RS I RowColSpans
3 2 roll exch % => Table I RS RowColSpans
array-merge % => Table I RS'
exch % => Table RS' I
1 add
} forall
pop
exch pop
} def
/box-table-get-cwc { % => Index Table
/CWC get exch get
} def
% Note that if table have no width constraint AND some columns are percentage constrained,
% then the width of the table can be determined based on the minimal column width;
% e.g. if some column have minimal width of 10px and 10% width constraint,
% then table will have minimal width of 100px. If there's several percentage-constrained columns,
% then we choose from the generated values the maximal one
%
% Of course, all of the above can be applied ONLY to table without width constraint;
% of theres any w.c. applied to the table, it will have greater than column constraints
%
% We must take constrained table width into account; if there's a width constraint,
% then we must choose the maximal value between the constrained width and sum of minimal
% columns widths - so, expanding the constrained width in case it is not enough to fit
% the table contents
%
% @param $context referene to a flow context object
% @return minimal box width (including the padding/margin/border width! NOT content width)
%
/box-table-get-min-width { % => Context Table
1 index 1 index
box-table-get-table-columns-min-widths
% => Context Table Widths
dup sum % => Context Table Widths Width
dup % => Context Table Widths Width BaseWidth
3 index get-width-constraint
/type get /none ne { % => Context Table Widths Width BaseWidth
% Check if constrained table width should be expanded to fit the table contents
1 index % => Context Table Widths Width BaseWidth Width
5 index
5 index get-parent
box-container-get-available-width
% => Context Table Widths Width BaseWidth Width AvailWidth
0
6 index get-width-constraint
dup /apply get exec % => Context Table Widths Width BaseWidth Width CWidth
max % => Context Table Widths Width BaseWidth Width'
3 2 roll pop exch % => Context Table Widths Width' BaseWidth
} { % => Context Table Widths Width BaseWidth
% Now check if there's any percentage column width constraints (note that
% if we've get here, than the table width is not constrained). Calculate
% the table width basing on these values and select the maximal value
0 % => Context Table Widths Width BaseWidth I
3 index { % => Context Table Widths Width BaseWidth I Widths[i]
1 index
6 index box-table-get-cwc % => Context Table Widths Width BaseWidth I Widths[i] CWC
3 index exch % => Context Table Widths Width BaseWidth I Widths[i] BaseWidth CWC
2 index exch % => Context Table Widths Width BaseWidth I Widths[i] BaseWidth Width[i] CWC
dup /apply-inverse get exec % => Context Table Widths Width BaseWidth I Widths[i] ICW
7 index
7 index get-parent
box-container-get-available-width
% => Context Table Widths Width BaseWidth I Widths[i] ICW AW
7 index get-hor-extra sub % => Context Table Widths Width BaseWidth I Widths[i] ICW AW-HE
min % => Context Table Widths Width BaseWidth I Widths[i] min(ICW,AW-HE)
4 index max % => Context Table Widths Width BaseWidth I Widths[i] W
5 4 roll pop 4 1 roll % => Context Table Widths Width' BaseWidth I Widths[i]
pop 1 add
} forall % => Context Table Widths Width BaseWidth I
pop
} ifelse
pop % => Context Table Widths Width
2 index get-hor-extra add % => Context Table Widths Width'
exch pop
exch pop
exch pop
} def
/box-table-get-max-width { % => Context Table
dup get-width-constraint
/type get /none ne { % => Context Table
% Check if constrained table width should be expanded to fit the table contents
1 index
1 index
box-container-get-available-width
% => COntext Table AvailableWidth
0 % => Context Table AvailableWidth 0
2 index get-width-constraint % => Context Table AvailableWidth 0 WC
dup /apply get exec % => Context Table WC
} { % => Context Table
2 copy
box-table-get-table-columns-max-widths
% => Context Table CMaxW
2 index
2 index
box-table-get-table-columns-min-widths
% => Context Table CMaxWs CMinWs
1 index
1 index
/get-max-width % => Context Table CMaxWs CMinWs CMaxWs CMinWs /get-max-width
6 index % => Context Table CMaxWs CMinWs CMaxWs CMinWs /get-max-width Context
3 index % => Context Table CMaxWs CMinWs CMaxWs CMinWs /get-max-width Context CMaxWs
7 index
box-table-apply-colspans % => Context Table CMaxWs CMinWs CMaxWs'
exch pop exch pop % => Context Table Widths
dup sum dup % => COntext Table Widths W BaseW
% Now check if there's any percentage column width constraints (note that
% if we've get here, than the table width is not constrained). Calculate
% the table width basing on these values and select the maximal value
0 % => Context Table Widths Width BaseWidth I
3 index { % => Context Table Widths Width BaseWidth I Widths[i]
1 index
6 index box-table-get-cwc % => Context Table Widths Width BaseWidth I Widths[i] CWC
3 index exch % => Context Table Widths Width BaseWidth I Widths[i] BaseWidth CWC
2 index exch % => Context Table Widths Width BaseWidth I Widths[i] BaseWidth Width[i] CWC
dup /apply-inverse get exec % => Context Table Widths Width BaseWidth I Widths[i] ICW
7 index
7 index get-parent
box-container-get-available-width
% => Context Table Widths Width BaseWidth I Widths[i] ICW AW
7 index get-hor-extra sub % => Context Table Widths Width BaseWidth I Widths[i] ICW AW-HE
min % => Context Table Widths Width BaseWidth I Widths[i] min(ICW,AW-HE)
4 index max % => Context Table Widths Width BaseWidth I Widths[i] W
5 4 roll pop 4 1 roll % => Context Table Widths Width' BaseWidth I Widths[i]
pop 1 add
} forall % => Context Table Widths Width BaseWidth I
pop pop exch pop % => Context Table Width
} ifelse
1 index get-hor-extra add % => Context Table Width'
exch pop
exch pop
} def
% Get a list of boolean values indicating if table rows are NOT constant constrained
%
% @return array containing 'true' value at index I if I-th row is height-constrained
% and 'false' otherwise
%
/box-table-get-non-constant-constrained-height-flags {
[] % => Table Flags
0 1 3 index
box-table-count-rows
1 sub { % => Table Flags I
2 index box-table-get-rhc % => Table Flags RHC
hc-is-constant not % => Table Flags Flag
exch array-prepend % => Table Flags'
} for % => Table Flags
exch pop % => Flags
} def
% Get a list of boolean values indicating if table rows are height constrained
%
% @return array containing 'true' value at index I if I-th row is not height-constrained
% and 'false' otherwise
%
/box-table-get-non-constrained-flags { % => Table
[] % => Table Flags
0 1 3 index
box-table-count-rows
1 sub { % => Table Flags I
2 index box-table-get-rhc % => Table Flags RHC
hc-is-null % => Table Flags Flag
exch array-prepend % => Table Flags'
} for % => Table Flags
exch pop % => Flags
} def
% Get a list of boolean values indicating if table columns are height constrained
%
% @return array containing 'true' value at index I if I-th columns is not width-constrained
% and 'false' otherwise
%
/box-table-get-non-constrained-width-flags {
[] % => Table Flags
0 1 3 index
box-table-count-cols
1 sub { % => Table Flags I
2 index box-table-get-cwc % => Table Flags CWC
/type get /none eq
exch array-prepend % => Table Flags'
} for % => Table Flags
exch pop % => Flags
} def
% Get a list of boolean values indicating if table rows are height constrained using percentage values
%
% @return array containing 'true' value at index I if I-th row is not height-constrained
% and 'false' otherwise
%
/box-table-get-non-percentage-constrained-height-flags {
[] % => Table Flags
0 1 3 index
box-table-count-rows
1 sub { % => Table Flags I
2 index box-table-get-rhc % => Table Flags RHC
hc-is-percentage not % => Table Flags Flag
exch array-prepend % => Table Flags'
} for % => Table Flags
exch pop % => Flags
} def
/box-table-get-rhc { % => Index Table
/RHC get exch get
} def
/box-table-get-rowspans { % => Table
[]
0
2 index get-content % => Table RS I Rows
{ % => Table RS I Row
1 index exch
box-table-row-get-rowspans % => Table RS I RowColSpans
3 2 roll exch % => Table I RS RowColSpans
array-merge % => Table I RS'
exch % => Table RS' I
1 add
} forall % => Table RS I
pop
exch pop
} def
/box-table-get-table-columns-min-widths { % => Context Table
[] % => Context Table Widths
1 index get-content 0 get get-content { % => Context Table Widths Cell
pop 0 exch array-append
} forall % => Context Table Widths
1 index get-content { % => Context Table Widths Row
3 index exch
box-table-row-get-table-columns-min-widths
{ max } zip-with % => Context Table Widths'
} forall % => Context Table Widths
exch pop
exch pop
} def
/box-table-get-table-columns-max-widths { % => Context Table
[] % => Context Table Widths
1 index get-content 0 get get-content { % => Context Table Widths Cell
pop 0 exch array-append
} forall % => Context Table Widths
1 index get-content { % => Context Table Widths Row
3 index exch
box-table-row-get-table-columns-max-widths
{ max } zip-with % => Context Table Widths'
} forall % => Context Table Widths
% Use column width constraints - column should not be wider its constrained width
0 1 2 index length 1 sub { % => Context Table Widths I
dup 3 index box-table-get-cwc % => Context Table Widths I CWC
% Newertheless, percentage constraints should not be applied IF table
% does not have constrained width
dup /type get
/fraction eq not { % => Context Table Widths I CWC
3 index /get-width call-method
3 index 3 index get
2 index dup /apply get exec % => Context Table Widths I CWC W
3 index exch
3 index exch put % => Context Table Widths I CWC
} if
pop
pop
} for
exch pop
exch pop
} def
/box-table-get-width { % => Table
dup get-parent
/box-table-cell is-a not % => Table C1
1 index get-parent
get-width-constraint /type get
/none eq not % => Table C1 C2
2 index get-width-constraint
/type get /fraction eq not % => Table C1 C2 C3
or or {
dup get-parent /Position get /width get
1 index /Position get /width get
2 index get-width-constraint
wc-apply % => Table W
} {
dup /Position get /width get
} ifelse
exch pop
} def
/box-table-have-colspan { % => Y X Table
3 copy box-table-get-cell % => Y X Table Cell
box-table-cell-get-colspan
exch pop
exch pop
exch pop
} def
/box-table-have-rowspan { % => Y X Table
dup get-content % => Y X Table Rows
3 index get % => Y X Table Row
2 index get % => Y X Table Cell
box-table-cell-get-rowspan
exch pop
exch pop
exch pop
} def
/box-table-is-constrained-column { % => Index Table
2 copy box-table-get-cwc
/type get /none ne
exch pop
exch pop
} def
% Tries to change minimal constrained width so that columns will fit into the given
% table width
%
% Note that every width constraint have its own priority; first, the unconstrained columns are collapsed,
% then - percentage constrained and after all - columns having fixed width
%
% @param $width table width
% @param $minw array of unconstrained minimal widths
% @param $minwc array of constrained minimal widths
% @return list of normalized minimal constrained widths
%
/box-table-normalize-min-widths { % => MinWC MinW Width Table
% Check if sum of constrained widths is too big
% Note that we compare sum of constrained width with the MAXIMAL value of table width and
% sum of uncostrained minimal width; it will prevent from unneeded collapsing of table cells
% if table content will expand its width anyway
2 index sum
2 index max % => MinWC MinW Width Table TWidth
% compare with sum of minimal constrained widths
4 index sum 1 index gt {
4 index sum 1 index sub % => MinWC MinW Width Table TWidth Delta
% Calculate the amount of difference between minimal and constrained minimal width for each columns
5 index
5 index
{ sub } zip-with % => MinWC MinW Width Table TWidth Delta Diff
% If no difference is found, we can collapse no columns
% otherwise scale some columns...
dup sum % => MinWC MinW Width Table TWidth Delta Diff CWDelta
dup 0 gt { % => MinWC MinW Width Table TWidth Delta Diff CWDelta
0 1 3 index length 1 sub { % => MinWC MinW Width Table TWidth Delta Diff CWDelta I
2 index 1 index get neg % => MinWC MinW Width Table TWidth Delta Diff CWDelta I -diff[i]
2 index div % => MinWC MinW Width Table TWidth Delta Diff CWDelta I -diff[i]/cwdelta
4 index mul % => MinWC MinW Width Table TWidth Delta Diff CWDelta I -diff[i]/cwdelta*delta
9 index 2 index get add % => MinWC MinW Width Table TWidth Delta Diff CWDelta I MinWC[i]'
9 index exch
2 index exch put % => MinWC MinW Width Table TWidth Delta Diff CWDelta I
pop % => MinWC MinW Width Table TWidth Delta Diff CWDelta
} for
} if % => MinWC MinW Width Table TWidth Delta Diff CWDelta
pop pop pop
} if % => MinWC MinW Width Table TWidth
pop pop pop pop % => MinWC
} def
/box-table-put-cwc-list { % => Box List
/CWC exch put
} def
/box-table-put-rhc-list { % => Box List
/RHC exch put
} def
/box-table-reflow { % => Context Parent This
dup /float get-css-value /none eq {
3 copy
box-table-reflow-static-normal
} {
3 copy
box-container-reflow-static-float
} ifelse
pop pop pop
} def
/box-table-reflow-content { % => Context This
% Reset current Y value
dup get-top
1 index put-current-y
% Determine the base table width
% if width constraint exists, the actual table width will not be changed anyway
dup /get-width call-method
2 index 2 index /get-max-width call-method
min
1 index put-width
% calculate width of table columns
2 copy box-table-column-widths % => Context This ColWidths
% Collapse table to minimum width (if width is not constrained
dup sum 2 index put-width % => Context This ColWidths
% Flow cells horizontally in each table row
0 1
3 index box-table-count-rows
1 sub { % => Context This ColWidths I
% Row flow started
% Reset current X coordinate to the far left of the table
2 index get-left
3 index put-current-x
% Flow each cell in the row
0 % => Context This ColWidths I Span
0 1
5 index box-table-count-cols
1 sub { % => Context This ColWidths I Span J
% Skip cells covered by colspans (fake cells, anyway)
1 index 0 eq { % => Context This ColWidths I Span J
% Flow current cell
% Any colspans here?
2 index 1 index 6 index
box-table-have-colspan % => COntext This ColWidths I Span J Span'
3 2 roll pop exch % => COntext This ColWidths I Span' J
% Get sum of width for the current cell (or several cells in colspan)
% In most cases, $span == 1 here (just a single cell)
3 index 1 index 3 index
getinterval sum % => COntext This ColWidths I Span' J CW
% store calculated width of the current cell
3 index 2 index % => Context This ColWidths I Span J CW I(Row) J(Col)
7 index
box-table-get-cell % => COntext This ColWidths I Span J CW Cell
1 index 1 index
put-full-width % => COntext This ColWidths I Span J CW Cell
1 index 1 index get-hor-extra sub
wc-create-constant
1 index put-width-constraint % => COntext This ColWidths I Span' J CW Cell
% Flow cell
7 index 7 index 2 index
/reflow call-method % => COntext This ColWidths I Span' J CW Cell
6 index get-current-x
2 index add
7 index put-current-x % => COntext This ColWidths I Span' J CW Cell
pop pop
} if % => Context This ColWidths I SPan J
pop % => Context This ColWidths I SPan
% Current cell have been processed or skipped
1 sub 0 max
} for % => Context This ColWidths I SPan
pop % => Context This ColWidths I
% row height calculation offset current Y coordinate by the row height calculated
2 index get-content
1 index get % => Context This ColWidth I Row
box-table-row-height % => Context This ColWidth I RH
3 index get-current-y
exch sub
3 index put-current-y % => Context This ColWidth I
pop
} for % => Context This ColWidths
pop % => Context This
% Calculate (and possibly adjust height of table rows)
0.1 1 index box-table-row-heights % => Context This RowHeights
% adjust row heights to fit cells spanning several rows
1 index box-table-get-rowspans { % => Context This RowHeights Rowspan
% Get height of the cell
dup cellspan-get-row
1 index cellspan-get-column
4 index
box-table-get-cell
get-full-height % => Context This RowHeights Rowspan CellHeight
% Get calculated height of the spanned-over rows
2 index
2 index cellspan-get-row
3 index cellspan-get-size
getinterval % => Context This RowHeights Rowspan CellHeight CellRowHeights
% Get list of non-constrained columns
4 index box-table-get-non-constrained-flags
3 index cellspan-get-row
4 index cellspan-get-size
getinterval % => Context This RowHeights Rowspan CellHeight CellRowHeights Flags
% Expand row heights (only for non-constrained columns)
3 copy
expand-to-with-flags % => Context This RowHeights Rowspan CellHeight CellRowHeights Flags NewHeights
exch pop % => Context This RowHeights Rowspan CellHeight CellRowHeights NewHeights
% Check if rows could not be expanded
dup sum 3 index rounding-epsilon sub lt { % => Context This RowHeights Rowspan CellHeight CellRowHeights NewHeights
pop
% Get list of non-constant-constrained columns
4 index box-table-get-non-constant-constrained-flags
3 index cellspan-get-row
4 index cellspan-get-size
getinterval % => Context This RowHeights Rowspan CellHeight CellRowHeights Flags
3 copy
expand-to-with-flags % => Context This RowHeights Rowspan CellHeight CellRowHeights Flags NewHeights
exch pop % => Context This RowHeights Rowspan CellHeight CellRowHeights NewHeights
} if % => Context This RowHeights Rowspan CellHeight CellRowHeights NewHeights
% Update the rows heights
4 index
4 index cellspan-get-row
2 index
putinterval % => Context This RowHeights Rowspan CellHeight CellRowHeights NewHeights
pop pop pop pop
} forall % => Context This RowHeights
% Now expand rows to full table height
dup sum
2 index get-height
max % => Context This RowHeights TableHeight
% Get list of non-constrained coluns
2 index box-table-get-non-constrained-flags
1 index exch
3 index exch
expand-to-with-flags % => Context This RowHeights TableHeight RowHeights'
3 2 roll pop exch % => Context This RowHeights' TableHeight
% Check if rows could not be expanded
1 index sum
1 index rounding-epsilon sub % => Context This RowHeights' TableHeight
lt {
% Get list of non-constant-constrained columns
2 index box-table-get-non-constant-constrained-flags
% use non-constant-constrained rows
2 index exch
expand-to-with-flags % => Context This RowHeights' TableHeight
} if % => Context This RowHeights' TableHeight
pop
% Now we calculated row heights, time to actually resize them
dup 2 index box-table-resize-rows % => Context This RowHeights
% Update size of cells spanning several rows
dup 2 index
box-table-fit-rowspans % => Context This Rowheights
pop pop pop
} def
/box-table-reflow-static-normal { % => Context Parent This
% Calculate margin values if they have been set as a percentage
1 index 1 index
box-generic-calc-percentage-margins
% Calculate width value if it had been set as a percentage
3 copy
box-generic-calc-percentage-width
% As table width can be deterimined by its contents, we may calculate auto values
% only AFTER the contents have been reflown; thus, we'll offset the table
% as a whole by a value of left margin AFTER the content reflow
% Do margin collapsing
3 copy box-generic-collapse-margin % => Context Parent This Y
% At this moment we have top parent/child collapsed margin at the top of context object
% margin stack
3 index exch 2 index box-generic-apply-clear
% Store calculated Y coordinate as current Y in the parent box
2 index put-current-y % => Context Parent This
% Terminate current parent line-box
2 index 2 index
box-container-close-line
% And add current box to the parent's line-box (alone)
dup 2 index
box-container-append-line % => Context Parent This
% Determine upper-left _content_ corner position of current box
% Also see note above regarding margins
1 index get-current-x
1 index get-border-left-width add
1 index get-padding-left add
1 index put-left % => Context Pareht This
% Note that top margin already used above during maring collapsing
1 index get-current-y
1 index get-border-top-width sub
1 index get-padding-top sub
1 index put-top % => Context Parent This
% By default, child block box will fill all available parent width;
% note that actual width will be smaller because of non-zero padding, border and margins
2 index
2 index box-container-get-available-width
1 index put-full-width % => Context Parent This
% reflow contents
2 index 1 index
box-table-reflow-content % => Context Parent This
% Update the collapsed margin value with current box bottom margin
2 index context-pop-collapsed-margin
2 index context-pop-collapsed-margin
dup get-margin-bottom
3 index context-push-collapsed-margin
% Calculate margins and/or width is 'auto' values have been specified
2 copy box-generic-calc-auto-width-margins
0 1 index get-margin-left 2 index
/offset call-method
% Extend parent's height to fit current box
dup get-bottom-margin
2 index box-generic-extend-height
% terminate parent's line box
2 index
2 index box-container-close-line % => Context Parent This
pop pop pop
} def
/box-table-resize-rows { % => Heights Table
dup get-top % => Heights Table RowTop
0 % => Heights Table RowTop I
2 index get-content { % => Heights Table RowTop I Row
4 index 2 index get % => Heights Table RowTop I Row H[I]
3 index % => Heights Table RowTop I Row H[I] RowTop
1 index % => Heights Table RowTop I Row H[I] RowTop H[I]
3 index % => Heights Table RowTop I Row H[i] RowTop H[I] Row
box-table-row-resize % => Heights Table RowTop I Row H[i]
exch pop % => Heights Table RowTop I H[i]
3 2 roll exch sub exch % => Heights Table RowTop' I
1 add % => Heights Table RowTop I+1
} forall % => Heights Table RowTop I
pop pop
1 index sum
1 index put-height
pop pop % =>
} def
% Calculate set of row heights
%
% @param $minheight the minimal allowed height of the row; as we'll need to expand rows later
% and rows containing totally empty cells will have zero height
% @return array of row heights in media points
%
/box-table-row-heights { % => Minheight Box
[] [] 0 % => Minheight Box Heights CHeights I
3 index get-content { % => Minheight Box Heights CHeights I Row
box-table-row-height % => Minheight Box Heights CHeights I RowHeight
5 index max % => Minheight Box Heights CHeights I RowHeight'
dup % => Minheight Box Heights CHeights I RowHeight RowHeight
5 4 roll % => Minheight Box CHeights I RowHeight RowHeight Heights
array-prepend % => Minheight Box CHeights I RowHeight Heights'
4 1 roll % => Minheight Box Heights' CHeights I RowHeight
1 index 5 index
box-table-get-rhc % => Minheight Box Heights' CHeights I RowHeight RHC
5 index get-content
3 index get exch % => Minheight Box Heights' CHeights I RowHeight RHC Cell
2 index exch
hc-apply % => Minheight Box Heights' CHeights I RowHeight RowHeightC
4 3 roll % => Minheight Box Heights' I RowHeight RowHeightC CHeights
array-prepend % => Minheight Box Heights' I RowHeight CHeights'
3 1 roll % => Minheight Box Heights' CHeights' I RowHeight
pop 1 add % => Minheight Box Heights' CHeights' I+1
} forall pop % => Minheight Box Heights' CHeights'
% Now adjust percentage-constrained rows;
2 index box-table-get-non-percentage-constrained-height-flags
% => Minheight Box Heights CHeights Flags
3 index get-height % => Minheight Box Heights CHeights Flags H CH
0
0 % => Minheight Box Heights CHeights Flags H CH I
3 index { % => Minheight Box Heights CHeights Flags H CH I Flag
{ % => Minheight Box Heights CHeights Flags H CH I
4 index 1 index get % => Minheight Box Heights CHeights Flags H CH I CH[i]
4 3 roll exch sub % => Minheight Box Heights CHeights Flags CH I H'
3 1 roll % => Minheight Box Heights CHeights Flags H' CH I
} { % => Minheight Box Heights CHeights Flags H CH I
4 index 1 index get % => Minheight Box Heights CHeights Flags H CH I CH[i]
3 2 roll add % => Minheight Box Heights CHeights Flags H I CH'
exch % => Minheight Box Heights CHeights Flags H CH' I
} ifelse
1 add
} forall pop % => Minheight Box Heights CHeights Flags H CH'
dup 0 gt {
div % => Minheight Box Heights CHeights Flags Scale
0 % => Minheight Box Heights CHeights Flags Scale I
2 index % => Minheight Box Heights CHeights Flags Scale I Flags
{ % => Minheight Box Heights CHeights Flags Scale I Flag
{ % => Minheight Box Heights CHeights Flags Scale I
3 index 1 index get % => Minheight Box Heights CHeights Flags Scale I CH[i]
2 index mul % => Minheight Box Heights CHeights Flags Scale I CH[i]'
4 index exch % => Minheight Box Heights CHeights Flags Scale I CH CH[i]'
2 index exch % => Minheight Box Heights CHeights Flags Scale I CH I CH[i]'
put % => Minheight Box Heights CHeights Flags Scale I
} if
1 add % => Minheight Box Heights CHeights Flags Scale I+1
} forall
pop pop pop
} {
pop pop pop
} ifelse % => Minheight Box Heights CHeights
{ max } zip-with % => Minheight Box Heights'
exch pop
exch pop
} def
/box-table-setup-methods { % => Box
dup get-box-dict /Methods get
dup /reflow {box-table-reflow} put
dup /get-min-width {box-table-get-min-width} put
dup /get-max-width {box-table-get-max-width} put
dup /get-width {box-table-get-width} put
dup /reflow-content {box-table-reflow-content} put
pop pop
} def % => |