summaryrefslogtreecommitdiff
path: root/macros/context/contrib/context-gantt/tex/context/third/gantt/gantt-s-mp.tex
blob: a8a310cf21c49ee963d472afc185fb48ed0a18d9 (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
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
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
%D \module
%D   [     file=t-gantt,
%D      version=2012.08.19,
%D        title=\CONTEXT\ User Module,
%D     subtitle=Drawing Gantt charts,
%D       author={Adam Reviczky and Aditya Mahajan},
%D         date=\currentdate,
%D    copyright={Adam Reviczky and Aditya Mahajan},
%D      license=Public Domain]

%D Some macros for drawing Gantt charts using MetaPost.

\writestatus{loading}{ConTeXt User Module / metapost gantt chart}

\startmodule[gantt-s-mp]
\unprotect

\def\????gantt{@@@@gantt}

\definesystemvariable{gantt}

\startMPinclusions
  % temporary solution for a pattern substitute
  input hatching;
\stopMPinclusions

\newcount\ganttnum
\newcount\gantttitlenum
\newcount\ganttwidth

\newdimen\ganttlastx \ganttlastx = 0cm
\newdimen\nextganttlastx
\newdimen\titleunitlength \titleunitlength = 1cm
\newdimen\ganttunitlength \ganttunitlength = 1cm

\newdimen\gantttmpa
\newdimen\gantttmpb

% workaround for titleelement
\def\!!row{\numexpr\ganttnum-1\relax}

\unexpanded\def\setupgantt
        {\bgroup
         \dosingleempty
         \dosetupgantt}

\unexpanded\def\dosetupgantt[#1]%
        {\egroup
         \getparameters[\????gantt][#1]}

\setupgantt
        [factor=1,
         xunitlength=1cm,
         style=\tf,
         titlestyle=\tfx,
         drawledgerline=false]

\unexpanded\def\setupganttbar
        {\bgroup
         \dosingleempty
         \dosetupganttbar}

\unexpanded\def\dosetupganttbar[#1]%
        {\egroup
         \getparameters[\????gantt][#1]}

\setupganttbar
        [pattern=north east lines,
         color=black]

% The gantt environment draws the canvas of a gantt figure (realized as tikzpicture)
% The usage is \startgantt[...]{no of Tasks to plot}{no of time slots}
% The optional argument [...] can be filled in a key=value syntax, using one or more of the following keys:
%
% xunitlength - length of one time slot (default: 1cm)
% style - style of labels (default: \tf)
% titlestyle - style of title section (default: \tfx)
% drawledgerline  - Switch to enable/disable the drawing of horizontal ledger lines (default value: false)
\unexpanded\long\def\dostartgantt[#1]#2#3%
  {\getparameters[\????gantt][#1]%
   \gdef\gantt!factor{\@@@@ganttfactor}
   \gdef\gantt!ganttunitlength{\@@@@ganttxunitlength}
   \gdef\gantt!style{\getvalue{@@@@ganttstyle}}
   \gdef\gantt!titlestyle{\getvalue{@@@@gantttitlestyle}}
   \gdef\gantt!drawledgerline{\@@@@ganttdrawledgerline}

   \bgroup
   \newcount\ganttx \ganttx=0
   \newcount\ganttheight

   \def\ganttxstringtop{}
   \def\ganttxstringbottom{}

   \global\ganttwidth=#3
   \global\ganttnum=0

   \ganttheight=#2
   \advance\ganttheight by 1

   \startMPdrawing
     linecap := squared;
     linejoin := mitered;

     draw (0,0.5cm)--(0,1.4cm-\the\ganttheight*cm);
     draw (\the\ganttwidth*\gantt!ganttunitlength,0.5cm)--(\the\ganttwidth*\gantt!ganttunitlength,1.4cm-\the\ganttheight*cm);
     % draw x axis
     draw (0cm,-#2*cm+0.4cm)--(\the\ganttwidth*\gantt!ganttunitlength,-#2*cm+0.4cm);

     % draw grid
     for t=1 upto \the\ganttwidth:
       draw (\gantt!ganttunitlength*t,-0.5cm)--(\gantt!ganttunitlength*t,1.4cm-\the\ganttheight*cm) dashed withdots;
     endfor
   \stopMPdrawing
   \egroup
  }

\unexpanded\def\startgantt%
  {\dosingleempty\dostartgantt}

\unexpanded\def\stopgantt%
  {\startMPdrawing
     % debug
     % draw bbox currentpicture withcolor .625red;
     currentpicture := currentpicture scaled \gantt!factor;
   \stopMPdrawing
   \MPdrawingdonetrue\getMPdrawing
   \resetMPdrawing
   \doglobal\ganttnum=0
   }

% ganttitle is the environment for drawing the title section
\definestartstop[ganttitle][
  before={
    \ganttlastx = 0cm
    \doglobal\advance\ganttnum by 1
  },
  after={
    \ganttlastx = 0cm
  }
  ]

% \titleelement draws one element of the title
% usage: \titleelement{label}{length}
\unexpanded\long\def\dotitleelement#1#2%
  {\gantttmpa=\dimexpr\gantt!ganttunitlength*#2\relax
   \divide\gantttmpa by 2

   \startMPdrawing
     draw (\the\ganttlastx,0.5cm-\the\!!row*cm)--(\the\ganttlastx+#2*\gantt!ganttunitlength,0.5cm-\the\!!row*cm)--(\the\ganttlastx+#2*\gantt!ganttunitlength,0.5cm-0.6cm-\the\!!row*cm)--(\the\ganttlastx,0.5cm-0.6cm-\the\!!row*cm)--cycle;
     path diam; diam = (\the\ganttlastx,0.5cm-\the\!!row*cm)--(\the\ganttlastx+#2*\gantt!ganttunitlength,0.5cm-0.6cm-\the\!!row*cm);
     label (textext("\getvalue{gantt!titlestyle}{#1}"), center diam);
   \stopMPdrawing

   \ganttlastx=\dimexpr\ganttlastx+\gantt!ganttunitlength*#2\relax
  }

\unexpanded\def\titleelement%
  {\dotitleelement}

% \numtitle draws a numbered sequence of title elements
% usage: \numtitle{start number}{increment}{end number}{length of each title element}
\unexpanded\long\def\donumtitle#1#2#3#4%
  {\gantttitlenum=#1
   \dostepwiserecurse{#1}{#3}{#2}{
     \titleelement{\the\gantttitlenum}{#4}
     \advance\gantttitlenum by #2
   }
  }

\unexpanded\def\numtitle%
  {\donumtitle}

% \ganttbar draws a single, unconnected bar for representing a task
% usage: \ganttbar[pattern=<pattern>,color=<color>]{label}{start}{length}
% where the optional comma separated arguments are:
% pattern - not implemented with MetaPost yet! (FIXME)
% color - a color of the pattern (e.g. red, green blue gray, dark gray)
\unexpanded\long\def\doganttbar[#1]#2#3#4%
  {\bgroup
   \getparameters[\????gantt][#1]%
   \edef\gantt!pattern{\@@@@ganttpattern}
   \edef\gantt!color{\@@@@ganttcolor}

   \gantttmpa=\dimexpr\gantt!ganttunitlength*#3\relax
   \gantttmpb=\dimexpr\gantt!ganttunitlength*#4+\gantttmpa\relax

   \doif{\gantt!drawledgerline}{true}{
   \startMPdrawing
     draw (0,-\the\ganttnum*cm-0.2cm)--(\the\ganttwidth*\gantt!ganttunitlength,-\the\ganttnum*cm-0.2cm) dashed withdots;
   \stopMPdrawing
   }
   \startMPdrawing
     path diag; diag = (0,-\the\ganttnum*cm+0.1cm)--(0,-\the\ganttnum*cm+0.5cm);
     label.lft (textext("\getvalue{gantt!style}{#2}"), center diag);
     path f; f := (\the\gantttmpa,-\the\ganttnum*cm+0.1cm)--(\the\gantttmpb,-\the\ganttnum*cm+0.1cm)--(\the\gantttmpb,-\the\ganttnum*cm+0.5cm)--(\the\gantttmpa,-\the\ganttnum*cm+0.5cm)--cycle;

     hatchoptions(withcolor \gantt!color);
     draw f withcolor black;
     % workaround for transparent bug
     % hatchfill f withcolor transparent("normal",0,white) withcolor (45,1mm,-0.5bp);
     hatchfill f withcolor (45,1mm,-0.5bp);
   \stopMPdrawing

   \global\ganttlastx=\gantttmpb
   \egroup
   \doglobal\advance\ganttnum by 1
  }

\unexpanded\def\ganttbar
  {\dosingleempty\doganttbar}

% \ganttcon draws an arrow between to bars with specified coordinates
% usage: \ganttcon{startx}{starty}{endx}{endy}
\unexpanded\long\def\doganttcon#1#2#3#4%
  {\bgroup
   \startMPdrawing
     begingroup;
       interim linecap := squared;
       interim linejoin := rounded;

       drawarrow (#1*\gantt!ganttunitlength,-#2*cm+0.1cm+0.2cm)--(#1*\gantt!ganttunitlength+0.4*\gantt!ganttunitlength,-#2*cm+0.1*cm+0.2*cm)--(#1*\gantt!ganttunitlength+0.4*\gantt!ganttunitlength,-#2*cm-0.4*cm+0.2*cm)--(#1*\gantt!ganttunitlength-0.4*\gantt!ganttunitlength,-#2*cm-0.4*cm+0.2*cm)--(#1*\gantt!ganttunitlength-0.4*\gantt!ganttunitlength,-#4*cm+0.1*cm+0.2*cm)--(#3*\gantt!ganttunitlength,-#4*cm+0.1*cm+0.2*cm);
     endgroup;
   \stopMPdrawing
   \egroup
  }

\unexpanded\def\ganttcon
  {\doganttcon}

% \ganttbarcon draws a single bar *and* connects the bar with the previous bar for
% consecutive tasks
% usage: \ganttbarcon[pattern=<pattern>,color=<color>]{label}{start}{length}
% where the optional pattern argument are the same as for \ganttbar
\unexpanded\long\def\doganttbarcon[#1]#2#3#4%
  {\bgroup
   \getparameters[\????gantt][#1]%
   \edef\gantt!pattern{\@@@@ganttpattern}
   \edef\gantt!color{\@@@@ganttcolor}

   \nextganttlastx = \dimexpr\ganttlastx+\ganttunitlength*1\relax
   \ifdim\nextganttlastx>\dimexpr\gantt!ganttunitlength*#3\relax
     \startMPdrawing
     begingroup;
       interim linecap := squared;
       interim linejoin := rounded;

       drawarrow (\the\ganttlastx,-\the\ganttnum*cm+1.1*cm+0.2*cm)--(\the\ganttlastx+0.4*\gantt!ganttunitlength,-\the\ganttnum*cm+1.1*cm+0.2*cm)--(\the\ganttlastx+0.4*\gantt!ganttunitlength,-\the\ganttnum*cm+0.6*cm+0.2*cm)--(\the\ganttlastx-0.4*\gantt!ganttunitlength,-\the\ganttnum*cm+0.6*cm+0.2*cm)--(\the\ganttlastx-0.4*\gantt!ganttunitlength,-\the\ganttnum*cm+0.1*cm+0.2*cm)--(#3*\gantt!ganttunitlength,-\the\ganttnum*cm+0.1*cm+0.2*cm);
     endgroup;
     \stopMPdrawing
   \else
     \startMPdrawing
     begingroup;
       interim linecap := squared;
       interim linejoin := rounded;

       drawarrow (\the\ganttlastx,-\the\ganttnum*cm+1.1*cm+0.2*cm)--(\the\ganttlastx+0.4*\gantt!ganttunitlength,-\the\ganttnum*cm+1.1*cm+0.2*cm)--(\the\ganttlastx+0.4*\gantt!ganttunitlength,-\the\ganttnum*cm+0.1*cm+0.2*cm)--(#3*\gantt!ganttunitlength,-\the\ganttnum*cm+0.1*cm+0.2*cm);
     endgroup;
     \stopMPdrawing
   \fi

   \ganttbar[#1]{#2}{#3}{#4}
   \egroup
   \doglobal\advance\ganttnum by 1
  }

\unexpanded\def\ganttbarcon
  {\dosingleempty\doganttbarcon}

% \ganttgroup draws a bar to group tasks
% usage: \ganttgroup{label}{start}{length}
\unexpanded\long\def\doganttgroup#1#2#3%
  {\bgroup
   \gantttmpa=\dimexpr\gantt!ganttunitlength*#2\relax
   \gantttmpb=\dimexpr\gantt!ganttunitlength*#3+\gantttmpa\relax

   \doif{\gantt!drawledgerline}{true}{
     \startMPdrawing
       draw (0,-\the\ganttnum*cm-0.2cm)--(\the\ganttwidth*\gantt!ganttunitlength,-\the\ganttnum*cm-0.2cm) dashed withdots;
     \stopMPdrawing
   }
   \startMPdrawing
     pen diamond; diamond := makepen fulldiamond;
     path diag; diag = (0,-\the\ganttnum*cm+0.1cm)--(0,-\the\ganttnum*cm+0.5cm);
     label.lft (textext("\getvalue{gantt!style}{\bf #1}"), center diag);
     fill (\the\gantttmpa-0.14*cm,-\the\ganttnum*cm+0.2cm)--(\the\gantttmpb+0.14*cm,-\the\ganttnum*cm+0.2cm)--(\the\gantttmpb+0.14*cm,-\the\ganttnum*cm+0.4cm)--(\the\gantttmpa-0.14*cm,-\the\ganttnum*cm+0.4cm)--cycle withcolor black;
     fill fulldiamond scaled 0.3cm shifted (\the\gantttmpa+0.01cm,-\the\ganttnum*cm+0.2cm) withcolor black;
     fill fulldiamond scaled 0.3cm shifted (\the\gantttmpb-0.01cm,-\the\ganttnum*cm+0.2cm) withcolor black;
   \stopMPdrawing

   \global\ganttlastx=\gantttmpb
   \egroup
   \doglobal\advance\ganttnum by 1
  }

\unexpanded\def\ganttgroup
  {\doganttgroup}

% \ganttmilestone, draw a diamond to represent a milestone
% usage: \ganttgroup[color=<color>]{label}{start}
% color - a tikz color of the pattern (e.g. red, green blue gray, dark gray)
% for more information see the tikz documentation

% Declaring layers to abvoid superposition when you connect a \ganttmileston with a task
\unexpanded\long\def\doganttmilestone[#1]#2#3%
  {\bgroup
   \getparameters[\????gantt][#1]%
   \edef\gantt!color{\@@@@ganttcolor}

   \gantttmpa=\dimexpr\gantt!ganttunitlength*#3\relax
   \gantttmpb=\dimexpr\gantt!ganttunitlength*0+\gantttmpa\relax

   \doif{\gantt!drawledgerline}{true}{
     \startMPdrawing
       draw (0,-\the\ganttnum*cm-0.2cm)--(\the\ganttwidth*\gantt!ganttunitlength,-\the\ganttnum*cm-0.2cm) dashed withdots;
     \stopMPdrawing
   }
   \startMPdrawing
     pen diamond; diamond := makepen fulldiamond;
     path diag; diag = (0,-\the\ganttnum*cm+0.1cm)--(0,-\the\ganttnum*cm+0.5cm);
     label.lft (textext("\getvalue{gantt!style}{#2}"), center diag);
     fill fulldiamond scaled 0.3cm shifted (\the\gantttmpb,-\the\ganttnum*cm+0.3cm) withcolor \gantt!color;
   \stopMPdrawing

   \global\ganttlastx=\gantttmpb
   \egroup
   \doglobal\advance\ganttnum by 1
  }

\unexpanded\def\ganttmilestone
  {\dosingleempty\doganttmilestone}

% \ganttmilestonecon draws a single diamond *and* connects the diamond with the previous task
% usage: \ganttmilestonecon[color=<color>]{label}{start}{length}
% where the optional color argument are the same as for \ganttbar and \ganttmilestone
\unexpanded\long\def\doganttmilestonecon[#1]#2#3%
  {\bgroup
   \getparameters[\????gantt][#1]%
   \edef\gantt!color{\@@@@ganttcolor}

   \nextganttlastx = \dimexpr\ganttlastx+\ganttunitlength*1\relax
   \ifdim\nextganttlastx>\dimexpr\gantt!ganttunitlength*#3\relax
     \startMPdrawing
     begingroup;
       interim linecap := squared;
       interim linejoin := rounded;

       drawarrow (\the\ganttlastx,-\the\ganttnum*cm+1.1*cm+0.2*cm)--(\the\ganttlastx+0.4*\gantt!ganttunitlength,-\the\ganttnum*cm+1.1*cm+0.2*cm)--(\the\ganttlastx+0.4*\gantt!ganttunitlength,-\the\ganttnum*cm+0.6*cm+0.2*cm)--(\the\ganttlastx-0.4*\gantt!ganttunitlength-0.14*cm,-\the\ganttnum*cm+0.6*cm+0.2*cm)--(\the\ganttlastx-0.4*\gantt!ganttunitlength-0.14*cm,-\the\ganttnum*cm+0.1*cm+0.2*cm)--(#3*\gantt!ganttunitlength-0.14*cm,-\the\ganttnum*cm+0.1*cm+0.2*cm);
     endgroup;
     \stopMPdrawing
   \else
     \startMPdrawing
     begingroup;
       interim linecap := squared;
       interim linejoin := rounded;

       drawarrow (\the\ganttlastx,-\the\ganttnum*cm+1.1*cm+0.2*cm)--(\the\ganttlastx+0.4*\gantt!ganttunitlength,-\the\ganttnum*cm+1.1*cm+0.2*cm)--(\the\ganttlastx+0.4*\gantt!ganttunitlength,-\the\ganttnum*cm+0.1*cm+0.2*cm)--(#3*\gantt!ganttunitlength-0.14*cm,-\the\ganttnum*cm+0.1*cm+0.2*cm);
     endgroup;
     \stopMPdrawing
   \fi

   \ganttmilestone[#1]{#2}{#3}
   \egroup
   \doglobal\advance\ganttnum by 1
  }

\unexpanded\def\ganttmilestonecon
  {\dosingleempty\doganttmilestonecon}

\protect \stopmodule