summaryrefslogtreecommitdiff
path: root/Master/texmf-dist/doc/latex/latex2e-help-texinfo/graphics/asy/list.asy
blob: 1a6c5fdb395c911d8ee3dfa3a7338cd48ba7e914 (plain)
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
import settings;
// settings.outformat="pdf";

unitsize(1pt);

void leftbar(picture pic, pair a, pair d, pen p=currentpen)
{
  picture opic;
  // was: Draw(opic,-0.5d--0.5d,p+solid);
  Draw(opic,-0d--0.5d,p+solid);
  add(pic,opic,a);
}
picture leftbar(pair a, pair d, pen p=currentpen)
{
  picture pic;
  leftbar(pic,a,d,p);
  return pic;
}
void rightbar(picture pic, pair a, pair d, pen p=currentpen)
{
  picture opic;
  // was: Draw(opic,-0.5d--0.5d,p+solid);
  Draw(opic,-0.5d--0d,p+solid);
  add(pic,opic,a);
}
picture rightbar(pair a, pair d, pen p=currentpen)
{
  picture pic;
  leftbar(pic,a,d,p);
  return pic;
}

arrowbar BeginLeftBar(real size=0) 
{
  return new bool(picture pic, path g, pen p, margin margin) {
    real size=size == 0 ? barsize(p) : size;
    leftbar(pic,point(g,0),size*dir(g,0)*I,p);
    return true;
  };
}

arrowbar LeftBar(real size=0) 
{
  return new bool(picture pic, path g, pen p, margin margin) {
    int L=length(g);
    real size=size == 0 ? barsize(p) : size;
    leftbar(pic,point(g,L),size*dir(g,L)*I,p);
    return true;
  };
}
arrowbar EndLeftBar(real size=0)=LeftBar; 

arrowbar LeftBars(real size=0) 
{
  return new bool(picture pic, path g, pen p, margin margin) {
    real size=size == 0 ? barsize(p) : size;
    BeginLeftBar(size)(pic,g,p,margin);
    EndLeftBar(size)(pic,g,p,margin);
    return true;
  };
}
arrowbar BeginRightBar(real size=0) 
{
  return new bool(picture pic, path g, pen p, margin margin) {
    real size=size == 0 ? barsize(p) : size;
    rightbar(pic,point(g,0),size*dir(g,0)*I,p);
    return true;
  };
}

arrowbar RightBar(real size=0) 
{
  return new bool(picture pic, path g, pen p, margin margin) {
    int L=length(g);
    real size=size == 0 ? barsize(p) : size;
    rightbar(pic,point(g,L),size*dir(g,L)*I,p);
    return true;
  };
}
arrowbar EndRightBar(real size=0)=LeftBar; 

arrowbar RightBars(real size=0) 
{
  return new bool(picture pic, path g, pen p, margin margin) {
    real size=size == 0 ? barsize(p) : size;
    BeginRightBar(size)(pic,g,p,margin);
    EndRightBar(size)(pic,g,p,margin);
    return true;
  };
}
arrowbar BeginLeftBar=BeginLeftBar(),
  LeftBar=LeftBar(),
  EndLeftBar=EndLeftBar(),
  LeftBars=LeftBars(),
  BeginRightBar=BeginRightBar(),
  RightBar=RightBar(),
  EndRightBar=EndRightBar(),
  RightBars=RightBars();

// Simulate text lines
real em=10pt;  // Computer Modern
real baselineskip=1.2*em;
real textpen_wd=0.8*em;
pen textpen = linewidth(textpen_wd)+mediumgray+squarecap+opacity(0.5);  // simulate text lines
pen surrounding_environmentpen = textpen;  // simulate text lines
pen labelpen = black+font("OT1","cmr","m","it")+fontsize(7);

// basic list 
real pagewidth=8cm;
real pageleftmargin=0.25cm;
real pagerightmargin=0.25cm;
real baseline; // keep track of vert location of baseline

int num_lines_above = 2;
int num_lines_first_item_first_paragraph = 3;
int num_lines_first_item_second_paragraph = 1;
int num_lines_second_item = 3;
int num_lines_below = 2;

// list parameters
// LaTeX's book 10 defaults; not suitable for illustration
// real leftmargin=2.5*em;
// real rightmargin=0*em;
// real topsep=8pt;
// real parskip=0pt;
// real partopsep=2pt;
// real labelwidth=leftmargin;
// real labelsep=0.5*em;
// real parsep=4pt;
// real itemindent=parsep;
// real listparindent=itemindent;
// real itemsep=4pt;
// parameters shown on the diagram
real leftmargin=2.5*em;
real rightmargin=1.5*em;
real topsep=8pt;
real parskip=4pt;
real partopsep=2pt;
real labelwidth=3em;
real labelsep=0.5*em;
real parsep=4pt;
real itemindent=16pt;
real listparindent=5pt;
real itemsep=8pt;

real labelleftedge = (pageleftmargin+leftmargin+itemindent)-(labelwidth+labelsep);
real labelrightedge = labelleftedge+labelwidth;

// helper lines 
// draw((pageleftmargin+leftmargin,0)--(pageleftmargin+leftmargin,-30),green);
// draw((pageleftmargin+leftmargin+itemindent,0)--(pageleftmargin+leftmargin+itemindent,-30),green);
// draw((pageleftmargin+leftmargin+itemindent-labelwidth,0)--(pageleftmargin+leftmargin+itemindent-labelwidth,-30),blue);
// draw((pageleftmargin+leftmargin+itemindent-labelwidth-labelsep,0)--(pageleftmargin+leftmargin+itemindent-labelwidth-labelsep,-30),red);

path lne;

// lines above list
baseline=0;
lne = (pageleftmargin,baseline)--(pagewidth-pagerightmargin,baseline); 
draw(lne,surrounding_environmentpen);
for (int line_no=0; line_no<(num_lines_above-1); ++line_no) {
  baseline = baseline-baselineskip;
  lne=(pageleftmargin,baseline)--(pagewidth-pagerightmargin,baseline);
  draw(lne,surrounding_environmentpen);
}
label("Surrounding environment, preceding material",(0.5*(pageleftmargin+pagewidth-pagerightmargin),baseline),labelpen);
real bot_preceding_material = baseline-0.5*textpen_wd;

// list first item 
baseline=baseline-baselineskip-topsep-parskip-partopsep;
real top_item_one = baseline+0.5*textpen_wd;
draw((labelleftedge,baseline)--(labelrightedge,baseline),textpen);  // label
label("Label",(0.5*(labelleftedge+labelrightedge),baseline),labelpen);
draw((labelrightedge+labelsep,baseline)--(pagewidth-pagerightmargin-rightmargin,baseline),textpen); // rest of label line
label("\makebox[0em][l]{First item}",((pageleftmargin+leftmargin)+3.5em,baseline),labelpen);
for (int line_no=0; line_no<(num_lines_first_item_first_paragraph-1); ++line_no) {
  baseline = baseline-baselineskip;
  draw((pageleftmargin+leftmargin,baseline)--(pagewidth-pagerightmargin-rightmargin,baseline),textpen);
}
real bot_item_one_par_one = baseline-0.5*textpen_wd;

// first item's second paragraph
baseline = baseline-baselineskip-parsep;
real top_item_one_par_two = baseline+0.5*textpen_wd;
draw((pageleftmargin+leftmargin+listparindent,baseline)--(pagewidth-pagerightmargin-rightmargin,baseline),textpen);
label("\makebox[0em][l]{First item, second paragraph}",((pageleftmargin+leftmargin)+3.5em,baseline),labelpen);
for (int line_no=0; line_no<(num_lines_first_item_second_paragraph-1); ++line_no) {
  baseline = baseline-baselineskip;
  draw((pageleftmargin+leftmargin,baseline)--(pagewidth-pagerightmargin-rightmargin,baseline),textpen);
}
real bot_item_one = baseline-0.5*textpen_wd;

// list second item 
baseline=baseline-baselineskip-itemsep-parsep;
real top_item_two = baseline+0.5*textpen_wd;
draw((labelleftedge,baseline)--(labelrightedge,baseline),textpen);  // label
label("Label",(0.5*(labelleftedge+labelrightedge),baseline),labelpen);
draw((labelrightedge+labelsep,baseline)--(pagewidth-pagerightmargin-rightmargin,baseline),textpen); // rest of label line
label("\makebox[0em][l]{Second item}",((pageleftmargin+leftmargin)+3.5em,baseline),labelpen);
for (int line_no=0; line_no<(num_lines_second_item-1); ++line_no) {
  baseline = baseline-baselineskip;
  draw((pageleftmargin+leftmargin,baseline)--(pagewidth-pagerightmargin-rightmargin,baseline),textpen);
}
real bot_item_two = baseline-0.5*textpen_wd;

// lines after list
baseline=baseline-baselineskip-topsep-parsep-partopsep;
real top_following_material = baseline+0.5*textpen_wd;
label("Surrounding environment, following material",(0.5*(pageleftmargin+pagewidth-pagerightmargin),baseline),labelpen);
draw((pageleftmargin,baseline)--(pagewidth-pagerightmargin,baseline),surrounding_environmentpen);
for (int line_no=0; line_no<(num_lines_below-1); ++line_no) {
  baseline = baseline-baselineskip;
  draw((pageleftmargin,baseline)--(pagewidth-pagerightmargin,baseline),surrounding_environmentpen);
}

// vertical markers
real v_x = pagewidth-pagerightmargin+6pt;
draw(Label("{\scriptsize $v_0$}",red),reverse((v_x,bot_preceding_material)--(v_x,top_item_one)),red,bar=LeftBars);
draw(Label("{\scriptsize $v_1$}",red),reverse((v_x,bot_item_one_par_one)--(v_x,top_item_one_par_two)),red,bar=LeftBars);
draw(Label("{\scriptsize $v_2$}",red),reverse((v_x,bot_item_one)--(v_x,top_item_two)),red,bar=LeftBars);
draw(Label("{\scriptsize $v_3$}",red),reverse((v_x,bot_item_two)--(v_x,top_following_material)),red,bar=LeftBars);

// horizontal markers
real h_y_top = top_item_one+3pt;
draw(Label("{\scriptsize $h_0$}",blue),reverse((labelleftedge,h_y_top)--(labelrightedge,h_y_top)),blue,bar=LeftBars);
draw(Label("{\scriptsize $h_1$}",blue),reverse((labelrightedge,h_y_top)--(labelrightedge+labelsep,h_y_top)),blue,bar=LeftBars);

real h_y_mid = bot_item_one-3pt;
draw(Label("{\scriptsize $h_2$}",blue),(pageleftmargin+leftmargin,h_y_mid)--(pageleftmargin+leftmargin+listparindent,h_y_mid),blue,bar=LeftBars);

real h_y_bot = bot_item_two-3pt;
draw(Label("{\scriptsize $h_3$}",blue),(pageleftmargin,h_y_bot)--(pageleftmargin+leftmargin,h_y_bot),blue,bar=LeftBars);
draw(Label("{\scriptsize $h_4$}",blue),(pageleftmargin+leftmargin,h_y_bot)--(pageleftmargin+leftmargin+itemindent,h_y_bot),blue,bar=LeftBars);
draw(Label("{\scriptsize $h_5$}",blue),(pagewidth-pagerightmargin-rightmargin,h_y_bot)--(pagewidth-pagerightmargin,h_y_bot),blue,bar=LeftBars);