1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
|
\unprotect
% % % NOT ENGLISH % % %
% clean up footnotes to notes
% We need to set the \dimen globally since we are in the
% OTR. Unfortunately this interferes with local settings,
% although we may assume that they will not cross page
% boundaries.
\def\OTRSETcheckcontent
{\bgroup
\donefalse
\def\OTRSETcheckcontent##1%
{\setbox\scratchbox##1\recurselevel
\setbox\scratchbox\vbox{\unvbox\scratchbox}%
\ifdim\ht\scratchbox>\zeropoint\donetrue\fi}%
\dorecurse{\nofcolumns}
{\OTRSETcheckcontent\columngettextbox
\OTRSETcheckcontent\columngetfootbox
\OTRSETcheckcontent\columngettopbox
\OTRSETcheckcontent\columngetbotbox}%
\ifdone\egroup\donefalse\else\egroup\donetrue\fi}
\def\OTRSETgetcolumntextheight#1% max - boven - top
{\scratchdimen=\OTRSETgetparameter\c!maxhoogte#1%
\advance\scratchdimen -\OTRSETgetparameter\c!bovenoffset#1%
\advance\scratchdimen -\ht\columntopbox#1%
\advance\scratchdimen -\getvalue{\??mc\number\mofcolumns-f}%
\advance\scratchdimen -\ht\columnbotbox#1} % not used
\def\OTRSETgetcolumnnaturalheight#1% max - boven - top
{\setbox\scratchbox\vbox{\unvcopy\columntextbox#1}%
\scratchdimen\ht\scratchbox
\advance\scratchdimen \OTRSETgetparameter\c!bovenoffset#1%
\advance\scratchdimen \ht\columntopbox#1%
\advance\scratchdimen -\getvalue{\??mc\number\mofcolumns-f}%
\advance\scratchdimen \ht\columnbotbox#1} % not used
\def\OTRSETdobalance% splitten in met en zonder footnotes
{\bgroup
\maxdeadcycles=1000
% collect content and notes
\bgroup
\OTRSEToutput
{\global\setbox1\vbox{\unvbox\normalpagebox}%
\global\setbox3\vbox{\unvbox\footins}}%
\verticalstrut\vskip-\struttotal % makes footnotes flush
\eject
\global\collectingcontentfalse
% check for footnotes only
\ifdim\ht1<\topskip % real dirty
\global\setbox1=\vbox{}
% fix height of first line
\ifdim\ht3>\!!zeropoint
\global\setbox3\vbox
{\setfootnotebodyfont
\kern-\strutht
\kern\topskip
\unvbox3}
\fi
% prepare trial box
\global\setbox5\vbox
{\ifdim\ht1>\zeropoint
\unvcopy1 \ifdim\ht3>\zeropoint \kern\skip\footins \fi
\fi
\ifdim\ht3>\zeropoint \unvcopy3 \fi}
\egroup
% erase old stuff
\columnerasetextboxes
\columnerasefootboxes
% prepare floats
\OTRSETdotopinsertions
\OTRSETdobotinsertions % not used can be removed
% calculate available space
\!!heighta\zeropoint % available total height
\dorecurse{\nofcolumns}
{\OTRSETgetcolumntextheight\recurselevel
\OTRSETcalculatelines\scratchdimen
\advance\!!heighta \scratchdimen}
% quick check
\ifdim\ht5>\!!heighta
% use normal routine
\columnerasetextboxes
\columnerasefootboxes
% TEMP, TODO, FORCE NEXT PASS !
\unvbox1
\unvbox3
\doglobal\addtocommalist{-\realfolio}\OTRSETbalancinglist
\donefalse
%\writestatus\m!columns{no balancing, text overflows height}%
\else\ifdim\ht5>\zeropoint \relax
% some text and/or notes
\donetrue
\else
\donefalse
\dorecurse\nofcolumns
{\ifdim\ht\columntopbox\recurselevel>\zeropoint \donetrue \fi}%
\ifdone
% no text and notes, but figures
\else
% no text, no notes, no figures
\doglobal\addtocommalist{-\realfolio}\OTRSETbalancinglist
\writestatus\m!columns{no balancing, nothing to be placed}%
\fi
\fi\fi
\ifdone
\ifdim\ht5>\zeropoint \relax
% balancing text and notes
%\writestatus\m!columns{text may fit, balancing}%
\newcounter\loopcounter
\newcounter\balancinglines
\doloop
{\increment\loopcounter\relax
% initialize
\columnerasetextboxes
\columnerasefootboxes
\setbox0=\copy5
\splittopskip\topskip
% pre-split loop and quality calculation
%\writestatus\m!columns{pass \loopcounter: correction -\balancinglines}
\dorecurse\nofcolumns
{\OTRSETgetcolumntextheight\recurselevel
\OTRSETcalculatelines\scratchdimen
\!!heightc\scratchdimen
\ifnum\recurselevel<\nofcolumns
\advance\!!heightc -\balancinglines\lineheight
\fi
\columnsettextbox\recurselevel\vsplit0 to \!!heightc}
% just one method
\OTRSETgetcolumnnaturalheight1 \dimen4\scratchdimen
\OTRSETgetcolumnnaturalheight\nofcolumns \dimen6\scratchdimen
%\writestatus\m!columns{first column: \the\dimen4}%
%\writestatus\m!columns{last column: \the\dimen6}%
\ifdim\dimen4=\dimen6
\donetrue % perfect balance
\else\ifdim\dimen4>\dimen6
\donefalse % not yet good enough
\increment\balancinglines % try again
\edef\balancingcount{\the\!!counta}
\else
\donetrue % worse balance
\ifnum\balancinglines>0 % take previous
\decrement\balancinglines
\fi
\fi\fi
% extra check
% \ifdim\ht0>\zeropoint\relax \donefalse \fi
% another check
\ifdone
%\writestatus\m!columns{balancing finished in pass \loopcounter}%
\else \ifnum\loopcounter>100 \donetrue
%\writestatus\m!columns{balancing aborted after pass \loopcounter}%
\else
%\writestatus\m!columns{balancing continued after pass \loopcounter}%
\fi \fi
% final balancing pass
\ifdone
\setbox0\copy1
\setbox2\copy3
\columnerasetextboxes
\columnerasefootboxes
\dorecurse\nofcolumns
{\OTRSETgetcolumntextheight\recurselevel
\OTRSETcalculatelines\scratchdimen
\!!heightc\scratchdimen
\ifnum\recurselevel<\nofcolumns
\advance\!!heightc -\balancinglines\lineheight
\fi
% split off text
\ifdim\ht0>\zeropoint
\columnsettextbox\recurselevel\vsplit0 to \!!heightc
\setbox4\vbox{\unvcopy\columntextbox\recurselevel}
\advance\!!heightc -\ht4
\ifdim\ht0>\zeropoint
\columnsettextbox\recurselevel\box4
\advance\!!heightc \skip\footins
\fi
\fi
% split off footnotes
\ifdim\ht0>\zeropoint\relax \else
\ifdim\ht2>\zeropoint\relax
\setbox4\vsplit2 to \!!heightc
\setbox\footins=\vbox{\unvbox4} % ugly and dirty trick
\ifdim\ht\columntextbox\recurselevel=\zeropoint\relax
\columnsettextbox\recurselevel\hbox
{\raise\strutdp\hbox % ugly but needed
{\setfootnotebodyfont % both these moves
\lower\strutdp\hbox{\placebottomnotes}}}
\else
\columnsetfootbox\recurselevel\hbox{\placebottomnotes}
\fi
\fi
\fi}
\exitloop
\fi}
\else
% no reason to balance floats
\fi
\fi
\doglobal\addtocommalist{\realfolio}\OTRSETbalancinglist
\OTRSETdoflush
\fi
\egroup}
\protect \endinput
% \def\OTRSETsetbalanceht#1#2% var col
% {#1\getvalue{\??mc\OTRSETidentifier\number#2\c!regels}\relax
% \ifcase#1#1\getvalue{\??mc\OTRSETidentifier\c!regels}\relax\fi
% \ifcase#1#1\savedcolumnmaxcells\relax\fi}
% \def\OTRSETinitbalancing
% {\ifbalancecolumns
% \let\savedcolumnmaxcells\columnmaxcells
% \ifnum\realpageno=\balancingpageno\relax
% \ifnum\mofcolumns=\plusone\relax
% \ifcase\OTRSETbottombalance \else
% \!!countc\zeropoint
% \dorecurse\nofcolumns
% {\OTRSETsetbalanceht\!!countb\recurselevel
% \ifnum\!!countb>\!!countc\!!countc\!!countb\fi}%
% \fi
% \dorecurse\nofcolumns
% {\!!counta\recurselevel\relax
% % can be an option: absolute versus relative
% \ifcase\OTRSETbottombalance
% \OTRSETsetbalanceht\!!countb\recurselevel
% \advance\!!countb\precolumnlines
% \ifnum\!!countb>\localcolumnmaxcells\relax
% \xdef\localcolumnmaxcells{\the\!!countb}%
% \fi
% \advance\!!countb \plusone
% \dostepwiserecurse\!!countb\columnmaxcells\plusone
% {\ifvoid\OTRSETgridcell\!!counta\recurselevel
% \OTRSETsetgridcell\!!counta\recurselevel\copy\placeholderboxe
% \fi}%
% \else
% \globallet\localcolumnmaxcells\columnmaxcells
% \!!countb\!!countc
% \advance\!!countb-\columnmaxcells
% \!!countb-\!!countb
% \advance\!!countb \minusone
% \ifnum\!!countb>\zerocount
% \dostepwiserecurse\plusone\!!countb\plusone
% {\ifvoid\OTRSETgridcell\!!counta\recurselevel
% \OTRSETsetgridcell\!!counta\recurselevel\copy\placeholderboxe
% \fi}%
% \OTRSETsetbalanceht\!!countb\recurselevel
% \ifnum\!!countc>\!!countb
% \!!countd\columnmaxcells
% \advance\!!countd-\!!countc
% \advance\!!countd+\!!countb
% \dostepwiserecurse\!!countd\columnmaxcells\plusone
% {\ifvoid\OTRSETgridcell\!!counta\recurselevel
% \OTRSETsetgridcell\!!counta\recurselevel\copy\placeholderboxe
% \fi}%
% \fi
% \fi
% \fi}%
% \OTRSETsetvsize % ! ! !
% \fi
% \fi
% \fi}
|
