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s-present-colorful.mkiv /size: 10 Kb last modification: 2021-10-28 13:51
1%D \module
2%D   [      file=s-present-colorful, % was s-pre-04
3%D        version=1998.09.06,
4%D          title=\CONTEXT\ Style File,
5%D       subtitle=Presentation Environment Colorful,
6%D         author=Hans Hagen,
7%D           date=\currentdate,
8%D      copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
9%C
10%C This module is part of the \CONTEXT\ macro||package and is
11%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
12%C details.
13
14\usemodule
[
present
-
general
]
15
16\startmodule
[
present
-
colorful
]
17
18%D \macros
19%D   {setupbodyfont}
20%D
21%D This is just another environment for typesetting interactive presentations. I
22%D wrote this module on behalf of a course I gave for the United Kingdom \TeX\ users
23%D group.
24
25\setupbodyfont
[
postscript
,
1
4
.
4
pt
]
26
27%D \macros
28%D   {setupcolors,definecolor}
29%D
30%D I started using dark blue for the navigational elements. In that context, dark
31%D red is a logical choice for the contrast color. While playing around with the
32%D navigational elements I decided to use the not so dominant color yellow for the
33%D status bar.
34%D
35%D A few days before I wrote this style, the recent acquisition of Mondriaans last
36%D painting by the Dutch governement was a hot topic in the Dutch news scenary.
37%D Therefore I decided to replace the rather dull title page by something more
38%D colorful, in mondriaan colors, but far more random than any of his paintings. For
39%D consistence we remap the already defined primary colors.
40%D
41%D The \MKIV\ version is adapted abit so that the title is better visible.
42
43\setupcolors
 [
state
=
start
]
44
45\definecolor
 [
NoneColor
]
 [
s
=
.
6
]
46\definecolor
 [
GotoColor
]
 [
b
=
.
6
]
        \definecolor
[
blue
]
  [
GotoColor
]
47\definecolor
 [
ExitColor
]
 [
r
=
.
6
]
        \definecolor
[
red
]
   [
ExitColor
]
48\definecolor
 [
JumpColor
]
 [
s
=
.
6
]
49\definecolor
 [
UserColor
]
 [
g
=
.
6
]
        \definecolor
[
green
]
 [
UserColor
]
50%definecolor [StepColor] [r=.6,g=.6]   \definecolor[yellow][StepColor]
51\definecolor
 [
StepColor
]
 [
y
=
.
8
]
        \definecolor
[
yellow
]
[
StepColor
]
52
53\definecolor
 [
PageColor
]
 [
s
=
.
8
0
]
       \definecolor
[
gray
]
  [
PageColor
]
54\definecolor
 [
TextColor
]
 [
s
=
.
9
0
]
55\definecolor
 [
TitleColor
]
[
s
=
.
9
0
]
56
57%D \macros
58%D   {setuppapersize}
59%D
60%D As usual, we take a screen oriented paper size:
61
62\setuppapersize
63  [
S
6
]
[
S
6
]
64
65%D \macros
66%D   {setuplayout,setupinteractionscreen}
67%D
68%D The layout definition fits into this $600\times450$ point area, but the
69%D dimensions are somewhat diffused by the text background offset.
70
71\setuplayout
72  [
width
=
5
3
0
pt
,
73   height
=
4
0
0
pt
,
74   header
=
0
pt
,
75   footer
=
0
pt
,
76   backspace
=
1
5
pt
,
77   topspace
=
1
5
pt
,
78   bottomdistance
=
1
5
pt
,
79   bottom
=
1
0
pt
,
80   margin
=
0
pt
,
81   rightedgedistance
=
1
5
pt
,
82   rightedge
=
3
0
pt
]
83
84\setupinteractionscreen
85  [
option
=
max
]
86
87%D \macros
88%D   {setupbackgrounds}
89%D
90%D Both the page and the text area have a gray background. The \type {[text,text]}
91%D area also has an offset. Later we will see that we have to compensate for that in
92%D the navigational areas.
93
94\setupbackgrounds
95  [
page
]
96  [
background
=
color
,
97   backgroundcolor
=
PageColor
]
98
99\setupbackgrounds
100  [
text
]
[
text
]
101  [
background
=
color
,
102   backgroundcolor
=
TextColor
,
103   backgroundoffset
=
5
pt
]
104
105%D \macros
106%D   {setupinteraction}
107%D
108%D For convenient navigation, we turn on interaction.
109
110\setupinteraction
111  [
state
=
start
,
112   menu
=
on
,
113   color
=
UserColor
,
114   contrastcolor
=
NoneColor
]
115
116%D \macros
117%D   {setupsubpagenumber}
118%D
119%D When navigating the document, we keep the title page out of sight, therefore we
120%D use sub page numbers.
121
122\setupsubpagenumber
123  [
state
=
start
,
124   way
=
bytext
]
125
126%D \macros
127%D   {setupinteractionmenu}
128%D
129%D There is only one interaction menu, located in the right edge of the screen. Both
130%D offsets enlarge the edge by the same amount as the text background offset.
131
132\setupinteractionmenu
133  [
right
]
134  [
state
=
start
,
135   frame
=
off
,
136   strut
=
no
,
137   offset
=
0
pt
,
138   inbetween
=
,
139   bottomoffset
=
-
5
pt
,
140   topoffset
=
-
5
pt
]
141
142%D \macros
143%D   {startinteractionmenu}
144%D
145%D The menu itself is not that spectacular. We use the start||stop alternative for
146%D setting the content. The macro \type {\interactioncolor} expands into either the
147%D interaction color or the contrast color, the latter only when no jump is
148%D possible.
149
150\startinteractionmenu
[
right
]
151    \setupinteraction
[
color
=
GotoColor
]
152    \but
 [
previoussubpage
]
 \Triangle
 {
9
0
}
\hsize
\interactioncolor
 \\
153    \vskip
1
0
pt
154    \but
 [
nextsubpage
]
     \Triangle
{
2
7
0
}
\hsize
\interactioncolor
 \\
155    \vfill
156    \but
 [
PreviousJump
]
    \Triangle
{
1
8
0
}
\hsize
{
NoneColor
}
       \\
157    \vskip
-
5
pt
158    \but
 [
NextJump
]
        \Triangle
  {
0
}
\hsize
{
NoneColor
}
       \\
159\stopinteractionmenu
160
161%D \macros
162%D   {setupinteractionbar}
163%D
164%D The interaction bar at the bottom is also larger than the normal width of the
165%D bottom area.
166
167\setupinteractionbar
168  [
width
=
\textwidth
,
169   height
=
\bottomheight
,
170   distance
=
1
0
pt
,
171   color
=
NoneColor
,
172   contrastcolor
=
StepColor
]
173
174%D \macros
175%D   {setupbottomtexts}
176%D
177%D The bar is centered in the middle.
178
179\setupbottomtexts
180  [
{
\interactionbar
[
alternative
=
f
]
}
]
181
182%D We can exit viewing with a close button, located on the rightmost bottom area.
183
184\unexpanded
\def
\CloseButton
185  {
\ifnum
\realpageno
>
\plusone
186     \button
187       [
width
=
\rightedgewidth
,
188        height
=
\bottomheight
,
189        offset
=
overlay
,
190        background
=
color
,
191        backgroundcolor
=
ExitColor
,
192        frame
=
off
]
193       {
}
%
194       [
CloseDocument
]
%
195  \fi
}
196
197\setupbottomtexts
198  [
edge
]
[
]
[
\CloseButton
]
199
200%D \macros
201%D   {definesymbol,setupitemize}
202%D
203%D Because some prominent things are rectangular or triangular, we prefer some
204%D different symbols in itemizations:
205
206\definesymbol
[
1
]
[
\blacktriangleright
]
207\definesymbol
[
2
]
[
\blacktriangledown
]
208\definesymbol
[
3
]
[
\blacktriangleright
]
209\definesymbol
[
4
]
[
\blacktriangledown
]
210
211\setupitemize
[
each
]
[
color
=
NoneColor
]
212
213%D \macros
214%D   {TitlePage,defineoverlay,button,setupalign,
215%D    setupbackgrounds,setupinteraction,setupinteractionbar,
216%D    startstandardmakeup,switchtobodyfont,setupinterlinespace}
217%D
218%D Now the main layout and navigational definitions are done, it makes sense to
219%D define and tune some structuring commands. First we build the titlepage.
220
221\defineoverlay
 [
TitleGraphic
]
 [
\useMPgraphic
{
title
}
]
222\defineoverlay
 [
NextPage
]
     [
\overlaybutton
{
nextpage
}
]
223
224\unexpanded
\def
\StartTitlePage
225  {
\setupbackgrounds
[
page
]
[
background
=
{
color
,
TitleGraphic
,
NextPage
}
]
226   \setupbackgrounds
[
text
]
[
text
]
[
background
=
]
227   \setupinteraction
[
menu
=
off
]
228   \setupinteractionbar
[
state
=
stop
]
229   \startpagemakeup
230   \switchtobodyfont
[
2
4
pt
]
231   \bfd
\setupinterlinespace
232   \setupalign
[
middle
]
233   \vfil
234   \enforced
\let
\\
\vfil
235   \scale
236     [
factor
=
max
]
\bgroup
237       \framed
238         [
frame
=
off
,
239          align
=
middle
,
240          foregroundcolor
=
TitleColor
,
241          offset
=
.
0
5
\textwidth
]
242         \bgroup
}
243
244\unexpanded
\def
\StopTitlePage
245  {
\egroup
246   \egroup
247   \vfil
\vfil
\vfil
248   \stoppagemakeup
249   \setupinteraction
[
menu
=
on
]
250   \setupinteractionbar
[
state
=
start
]
251   \setupbackgrounds
[
page
]
[
background
=
color
]
252   \setupbackgrounds
[
text
]
[
text
]
[
background
=
color
]
}
253
254\unexpanded
\def
\TitlePage
#
1
%
255  {
\StartTitlePage
#
1
\StopTitlePage
}
256
257%D \macros
258%D   {Topic, Nopic, Subject,
259%D    definehead, setuphead}
260%D
261%D We use \type {\Topic} and \type {\Subject} instead of chapters and sections. The
262%D \type {\Nopic} alternative is meant for internal use.
263
264\definehead
 [
Topic
]
   [
chapter
]
265\definehead
 [
Nopic
]
   [
title
]
266\definehead
 [
Subject
]
 [
section
]
267
268\setuphead
269  [
Topic
,
Nopic
]
270  [
after
=
{
\blank
[
3
*
medium
]
}
,
271   number
=
no
,
272   style
=
\bfb
,
273   page
=
yes
,
274   alternative
=
middle
]
275
276\setuphead
277  [
Subject
]
278  [
after
=
\blank
,
279   number
=
no
,
280   page
=
yes
,
281   continue
=
no
,
282   style
=
\bfa
]
283
284%D \macros
285%D   {Topics, Subjects,
286%D    setuplist, placelist, startcolumns}
287%D
288%D This style is meant for the more large presentations, and therefore provided for
289%D a list of topics as well as local lists of subjects. When many topics are
290%D introduces, the list is typeset in columns.
291
292\setuplist
293  [
Topic
,
Subject
]
294  [
alternative
=
g
,
295   interaction
=
all
,
296   before
=
,
297   after
=
]
298
299\setuplist
300  [
Topic
]
301  [
criterium
=
all
]
302
303\unexpanded
\def
\Topics
#
1
%
304  {
\determinelistcharacteristics
[
Topic
]
305   \ifnum
\utilitylistlength
>
0
306     \Nopic
[
Topics
]
{
#
1
}
307     \ifnum
\utilitylistlength
>
1
2
308       \startcolumns
309         \placelist
[
Topic
]
310       \stopcolumns
311     \else
312       \placelist
[
Topic
]
313     \fi
314   \fi
}
315
316\unexpanded
\def
\Subjects
%
317  {
\placelist
[
Subject
]
}
318
319%D Last we define the overlays. Look at the way colors are linked into the macros.
320
321\setupMPvariables
322  [
triangle
]
323  [
width
=
1
cm
,
324   rotation
=
0
,
325   color
=
black
]
326
327\startuniqueMPgraphic
{
triangle
}
{
width,rotation,color
}
328    fill
 triangle
 xsized
 \MPvar
{
width
}
 rotated
 \MPvar
{
rotation
}
 withcolor
 \MPvar
{
color
}
 ;
329\stopuniqueMPgraphic
330
331\unexpanded
\def
\Triangle
#
1
#
2
#
3
%
332  {
\uniqueMPgraphic
{
triangle
}
{
rotation=#1,width=#2,c:color=#3
}
}
333
334% \startuseMPgraphic{title}
335%     path p ; numeric sx, sy, cc ;
336%     for i=1 upto 250 :
337%         sx := uniformdeviate 30 ;
338%         sy := uniformdeviate 30 ;
339%         cc := round(uniformdeviate 2) ;
340%         if round(uniformdeviate 1) = 0 :
341%             p := unitsquare xscaled sx yscaled sy ;
342%         else :
343%             p := unittriangle scaled sx rotated (round(uniformdeviate 3) * 90) ;
344%         fi ;
345%         p := p shifted (uniformdeviate OverlayWidth,uniformdeviate OverlayHeight) ;
346%         fill p
347%             withcolor
348%                 if     cc = 0 : "GotoColor"
349%                 elseif cc = 1 : "ExitColor"
350%                 elseif cc = 2 : "StepColor" fi ;
351%     endfor ;
352% \stopuseMPgraphic
353
354\startuseMPgraphic
{
title
}
355    path
 p
 ;
 numeric
 sx
,
 sy
,
 cc
 ;
356    fill
 Page
 withcolor
 "
StepColor
"
 ;
357    for
 i
=
1
 upto
 1000
 :
358        sx
 :
=
 50
 +
 uniformdeviate
 50
 ;
359        sy
 :
=
 50
 +
 uniformdeviate
 50
 ;
360        cc
 :
=
 round
(
uniformdeviate
 2
)
 ;
361        if
 round
(
uniformdeviate
 1
)
 =
 0
 :
362            p
 :
=
 unitsquare
 xscaled
 sx
 yscaled
 sy
 ;
363        else
 :
364            p
 :
=
 unittriangle
 scaled
 sx
 rotated
 (
round
(
uniformdeviate
 3
)
 *
 90
)
 ;
365        fi
 ;
366        p
 :
=
 p
 shifted
 (
uniformdeviate
 OverlayWidth
,
uniformdeviate
 OverlayHeight
)
 ;
367        fill
 p
368            withcolor
369                if
     cc
 =
 0
 :
 "
GotoColor
"
370                elseif
 cc
 =
 1
 :
 "
ExitColor
"
371                elseif
 cc
 =
 2
 :
 "
StepColor
"
 fi
 ;
372        draw
 p
373            withpen
 pencircle
 scaled
 1
/
2
374            withcolor
 white
 ;
375    endfor
 ;
376\stopuseMPgraphic
377
378\stopmodule
379
380\continueifinputfile
{
s
-
present
-
colorful
.
mkiv
}
381
382\usemodule
[
present
-
common
]
383
384\inputpresentationfile
{
examples
/
present
-
colorful
-
0
0
1
.
tex
}
385
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