tv digital interativa no brasil se faz com ginga

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Este documento é uma versão preliminar de: Barbosa, S.D.J. & Soares, L.F.G. TV digital interativa no Brasil se faz com Ginga: Fundamentos, Padrões, Autoria Declarativa e Usabilidade. Em T. Kowaltowski & K. Breitman (orgs.) Atualizações em Informática 2008. Rio de Janeiro, RJ: Editora PUC-Rio, 2008. pp.105-174.

Esta versão em formato A4 está disponível apenas para facilitar a impressão e não pode ser distribuída com fins comerciais.

Pedimos que as citações e referências sejam realizadas sobre a obra publicada, obedecendo a numeração de suas páginas.

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! !

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Tabela 3.2. Codificação de vídeo no sistema brasileiro de TV digital.

! L181#%(215);.M(5)1)NO31.5) L181#%(215)=(2%P%1.5)

="-2G() 9W>@W!oBGjJ![C=Z6@J!UF?\! 9W>@W!oBGjJ![C=Z6@J!UF?\!

Q$31'R=126.') o=R3JBM! /=R3KBg!

QS912()-1)'.0T"5)-()0$31')) JmM![Jqg!'!KjqL\2!nGM![KjqL\2!KMmM![KjqL\!

"rF6U! [KjMTKGM! %+! KjMTLM\2!rF6U![gGMTGJM!%+!gGMTKmM\!'!?94![gHGTGmm\x!8%5%1!'$!Jqg!'!KjqL!

+"M")-1)U&"-2(5) gM!'!jM!o)! KH!'!gM!o)!

*CHC*C ) I.5%19")-1)+2"05#(2%1)

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!!

3.2.3.1. Multiplexação de dados

^1!:O+T%1!5'!5.5%1!7%5'$!1'-!8-.&17%-8.5%1!.8-.Ib1!5'!1'-I#V%1!1]&<-%&%1![:-.<.$'&8'!.<%7O.5%1\2! 1#&<-%&#).5%1! [:%-8'$'&8'! .<%7O.5%1\! %+! .11]&<-%&%1! [5'1.<%7O.5%1\B! ^!1'-I#V%!5'!8-.&17%-8'!1]&<-%&%!.11+$'!,+'!%1!:O+T%1!5'!5.5%1!1E%!1#&<-%&#).5%1!'&8-'!1#2!1'P+#&5%!%!7.-.5#P$.!5'! '#T%!5%! 8'$7%! [8#$'O#&'\!7'O.!.5#VE%!5'!<.-#$0%1!5'! 8'$7%![8#$'18.$71\B!^1! :O+T%1! 5'! 5.5%12! &%! '&8.&8%2! &E%! '18E%! -'O.<#%&.5%1! i! 8'$7%-#).VE%!5%1! :O+T%1! 5'! ;+5#%! 7-#&<#7.O! '! I]5'%! 7-#&<#7.OB!U! 4#P+-.! gBH! #O+18-.! %! 7-%<'5#$'&8%B!S%8'!,+'!%1!<.-#$0%1!5'!8'$7%!.11%<#.5%1!.%1!:O+T%1!5'!5.5%1!1E%!5#:'-'&8'1!5.,+'O'1!.11%<#.5%1!.%1!:O+T%1!5'!;+5#%!7-#&<#7.O!'!I]5'%!7-#&<#7.OB!

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AD2)' <-"/+"<.4

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Figura 3.5.Transporte de dados síncronos

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! 4O+T%1! 5'! 5.5%1! &%! 8-.&17%-8'! 1]&<-%&%! '! 1#&<-%&#).5%! 1X! 7'-$#8'$! %!1#&<-%&#1$%!,+.&5%!%!#&18.&8'!5'!8'$7%!5'!1#&<-%&#).VE%!b!5'8'-$#&]18#<%B!U7O#<.Vc'1!#&8'-.8#I.12! %&5'! .! 1#&<-%&#).VE%! b! 5.5.! '$! +$! 8'$7%! .O'.8X-#%! 5'8'-$#&.5%! 7'O%!+1+;-#%!8'O'17'<8.5%-2!.7O#<.Vc'1!%&5'!%!<%&8'f5%!b!P'-.5%!'$!8'$7%!5'!'T#0#VE%!'!&E%!1'!7%5'!5'8'-$#&.-!%!8'$7%!'T.8%!%&5'!'I'&8%1!%<%--'-E%2!'!.7O#<.Vc'1!<+e%!<%&8'f5%!b!5'8'-$#&.5%! '$! 8'$7%! 5'! 'T#0#VE%2! &E%! 7%5'$! 1'-! 1#&<-%&#).5.1! +1.&5%! %1! 1'-I#V%1!1]&<-%&%!%+!1#&<-%&#).5%B!=.-.!8.&8%!'T#18'!%!1'-I#V%!5'!8-.&17%-8'!.11]&<-%&%B!

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AD2)' <-"/+"<.4

Y$2"' <-"/+"<.4

AD2)' <-"/+"<.4 Z 2.2'%!

Figura 3.6.Transporte de dados assíncronos

! ^! 1'-I#V%! .11]&<-%&%! b! .! f&#<.! :%-$.! 7.-.! .! 1#&<-%&#).VE%! <%$! 8'$7%!#&5'8'-$#&.5%B!ZO'2!&%!'&8.&8%2!'T#P'!+$.!O#&P+.P'$!7.-.!'17'<#:#<.VE%!5%!1#&<-%&#1$%!'2! &%! -'<'78%-2! +$.! $;,+#&.! <.7.)! 5'! #&8'-7-'8.-! '! 'T'<+8.-! %1! <%$.&5%1! 5'!

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3.2.3.2. Car rossel de Dados DSM-C C

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Fluxo de programa

Fluxos de programa 1!n

Mapa dos fluxos de programa

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Fluxo de transporte

PCR- Program

Clock Reference

!Figura 3.7. Fluxo de transporte MPEG-2 System

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Tabela 3.3. Ambientes de aplicações para receptores fixos e móveis

Middleware Sistema de TVD Ambiente Declarativo Ambiente Procedural

ACAP Americano/ATSC ACAP-X [ATSC A-101 2005] (linguagem declarativa = XHTML like; linguagem não-declarativa = ECMAScript)

ACAP-J [ATSC A-101 2005] (linguagem não-declarativa = Java

MHP Europeu/DVB-T DVB-HTML [ETSI TS 102 812 V1.2.2 2006] (linguagem declarativa = XHTML like; linguagem não-declarativa = ECMAScript)

MHP [ETSI TS 102 812 V1.2.2 2006]

(linguagem não-declarativa = Java

ARIB-BML Japonês/ISDB-T ARIB ! BML [ARIB B-24 2004] (linguagem declarativa = BML (XHTML like; linguagem não-declarativa = ECMAScript)

Opcional (GEM [ETSI TS 102 819 V1.3.1 2005] like); não implementado)

Ginga Brasileiro/SBTVD

Ginga-NCL [ABNT NBR 15606-2 2007] (linguagem declarativa = NCL; linguagem não-declarativa = Lua)

Ginga-J

(linguagem não-declarativa = Java

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Tabela 3.4. Ambientes de aplicações para receptores portáteis

Middleware Sistema de TVD Ambiente Declarativo Ambiente Procedural

ARIB-BML Japonês/ISDB-T ARIB ! BML [ARIB B-24 2004] (linguagem declarativa = BML (XHTML like; linguagem não-declarativa = ECMAScript)

X

Ginga Brasileiro/SBTVD Ginga-NCL [ABNT NBR 15606-5 2007] (linguagem declarativa = NCL; linguagem não-declarativa = Lua)

Opcional o Ginga-J

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imgMenu1

imgMenu2

imgMenu3

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Figura 3.12. Representação de nós de mídia e de composição.

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Figura 3.13. Porta de um nó de composição.

*CWCDC ) `5%2&%&2")-1)&9)#2(/2"9")19)Q!Y)

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! um cabeçalho de arquivo NCL (linhas 1 e 2);

! uma seção de cabeçalho do programa (seção .&/#, linhas 3 a 13), onde se definem as

regiões, os descritores, os conectores e as regras utilizados pelo programa;

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!G!S'18'!5%<+$'&8%2!+8#O#).-'$%1!%1!8'-$%1!(+.4+'9'!'!0.&/9*,).%A"#(*+9F0#'C!<%$%!1#&s&#$%1B!

! !

! o corpo do programa (seção !"#$, linhas 14 a 17), onde se definem os contextos, nós

de mídia, elos e outros elementos que definem o conteúdo e a estrutura do programa;

! pelo menos uma porta que indica por onde o programa começa a ser exibido (port pInicio, linha 15); e

! a conclusão do documento (linha 18).

Tabela 3.5. Estrutura básica de um documento NCL.

cabeçalho do arquivo NCL

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E1 2)+67(#9:&4&5,6"<0:7456)*9:.--,1FFGGG;)+6;"%';!%FHIJK;<FLMNOP%"Q(6&:77D7

cabeçalho do programa

K1 2.&/#D7

base de regiões

R1 7 7 2%&'(")S/*&D7

B1 7 7 72T@@7%&'(U&*7#/7-&6/7")#&7/*75V#(/*7*W"7/,%&*&)-/#/*7@@D7

X1 7 7 2F%&'(")S/*&D7

base de descritores

Y1 7 2#&*+%(,-"%S/*&D7

A1 7 7 2T@@7#&*+%(-"%&*7Z[&7#&Q()&57+"5"7/*75V#(/*7*W"7/,%&*&)-/#/*7@@D7

C1 7 2F#&*+%(,-"%S/*&D7

base de conectores

0<1 7 2+"))&+-"%S/*&D7

001 7 7 2T@@77+")&+-"%&*7Z[&7#&Q()&57+"5"7"*7&6"*7*W"7/-(8/#"*7&7"7Z[&7&6&*7#(*,/%/57@@D7

0E1 7 2F+"))&+-"%S/*&D7

0K1 2F.&/#D7

corpo do programa 0R1 2!"#$D7

ponto de interface do programa

0B1 7 2T@@7,"%-/\*]7@@D7

conteúdo do programa

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0Y1 2F!"#$D7

término 0A1 2F)+6D7

*CWCHC ) I1&)#2.91.2()-(8&910%()Q!Y)

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Figura 3.14. Visões (a) estrutural e (b) de leiaute do primeiro exemplo.

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! (#: identificador unívoco da base de regiões

! !

! #&8(+&: dispositivo ao qual a região está associada. Pode ser da forma

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! (#*: identificador único, utilizado nas referências à região (por exemplo, pelos

descritores das mídias que serão apresentadas na região)

! -(-6&7(título): título da região, cujo uso depende da implementação do formatador

! 6&Q-7 (esquerda), -", (topo), %('.- (direita), !"--"5 (base): coordenadas da região,

com relação às coordenadas da região pai (ou da tela, no caso de a região não estar

aninhada a nenhuma outra).

! G(#-. (largura) e .&('.- (altura): dimensões horizontal e vertical da região. Cabe

observar que o autor pode escolher especificar as dimensões de uma região

conforme sua conveniência. Por exemplo, em certos casos pode ser melhor definir

os atributos %('.-^7 !"--"5^7 G(#-. e .&('.-. Em outros casos, pode ser mais

apropriado especificar os atributos -",^76&Q-^7G(#-.7e7.&('.-.

! c=)#&4: número entre 0 e 255 que define a "camada" da região, ou sua posição da

região no eixo "z", utilizado geralmente para indicar, no caso de regiões sobrepostas,

quais regiões aparecem sobre quais outras. Camadas com c=)#&4 maior são

apresentadas no topo de (sobrepondo) camadas com c=)#&4 menor.

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5%! 5%<+$'&8%! ['&8-'! %1! 8.P1! 2.&/#D! '! 2F.&/#D\2! &.! 1'VE%! 5'! 0.1'! 5'! 5'1<-#8%-'1!2#&*+%(,-"%S/*&D7[#B'B2!'&8-'!%1!8.P1!2#&*+%(,-"%S/*&D!'!2F#&*+%(,-"%S/*&D]B!!

>$!5'1<-#8%-! b! -'7-'1'&8.5%!7'O%! 'O'$'&8%!2#&*+%(,-"%D2! '! <.5.!5'1<-#8%-!7%5'!5':#&#-! .#&5.! 7.-d$'8-%1! .5#<#%&.#1! 5'! 'T#0#VE%! 5'!$]5#.2! .8-.Ib1! 5'! 'O'$'&8%1! :#OY%1!2#&*+%(,-"%P/%/5DB!^1!5'1<-#8%-'1!&E%!.7.-'<'$!'$!&'&Y+$.!5.1!I#1c'1!+8#O#).5.1!7.-.!-'7-'1'&8.-! 7-%P-.$.1! .+5#%I#1+.#1! #&8'-.8#I%1! ['18-+8+-.O2! 5'! O'#.+8'2! 8'$7%-.O! %+!'17.<#.O\B!S%!<.1%!5%!'T'$7O%!MK2!%!<X5#P%!S?3!<%--'17%&5'&8'!.%!5'1<-#8%-!<-#.5%!b!%!1'P+#&8'q!

2#&*+%(,-"%S/*&D72#&*+%(,-"%7(#9:#N&6/=)-&(%/:7%&'(")9:%'N&6/=)-&(%/:7FD7

2F#&*+%(,-"%S/*&D7

Z11'!5'1<-#8%-!2:%;8<&"%(78! b!'T8-'$.$'&8'!1#$7O'12!7%#1! :.)!1%$'&8'!.!.11%<#.VE%!<%$!+$.!-'P#E%2!7*:%;8<&"%(78B!

.&%&(#&"*%(,&/#0(3*#'%/$-%*#(

>$!5'1<-#8%-![2#&*+%(,-"%D\!5':#&'!<%$%!+$!&X!5'!$]5#.!1'-;!.7-'1'&8.5%2!#&<O+#&5%!.!.11%<#.VE%!<%$!+$.!-'P#E%!%&5'!1'-;!'T#0#5%B!Z$!S?32!8%5%1!%1!5'1<-#8%-'1!5'I'$!1'-!5':#&#5%1! &%! <.0'V.OY%! 5%! 7-%P-.$.! [2.&/#D\2! &.! 1'VE%! 5'! 0.1'! 5'! 5'1<-#8%-'1![2#&*+%(,-"%S/*&D\B! W%5%! &X! 5'! $]5#.! ,+'! 1'-;! .7-'1'&8.5%! 5'I'! 8'-! +$! 5'1<-#8%-!.11%<#.5%B!U!S?3!5':#&'!%1!1'P+#&8'1!.8-#0+8%1!5'!5'1<-#8%-q!

! (#: identificador único, utilizado nas referências ao descritor (por exemplo, nos nós

de mídia/conteúdo apresentados pelo descritor)

! %&'("): identificador da região associada ao descritor. Ao utilizar o descritor, o

objeto de mídia será exibido na região correspondente. Esse atributo só precisa ser

especificado para objetos que possuam um conteúdo visual a ser exibido.

! &4,6(+(-M[%: define a duração do objeto de mídia associado ao descritor. O valor

deste atributo deve ser expresso em segundos, no formato BCBD (valor numérico

inteiro ou real seguido da letra "s"). Quando &4,6(+(-M[%7 não for especificado, o

objeto que estiver associado ao descritor será exibido com sua duração default. Mídias como textos e imagens estáticas que utilizam um descritor sem esse atributo

definido possuem duração default infinita.

! Q%&&c&17 identifica o que acontece ao final da apresentação do objeto de mídia

associado ao descritor. Em um vídeo, o valor "7'% indica que, ao término natural do

vídeo, o último quadro deve ser congelado indefinidamente.

! ,6/$&%: identifica a ferramenta de apresentação a ser utilizada para exibir o objeto de

mídia associado ao descritor. Quando esse atributo é omitido, o formatador procura

pela ferramenta default em função do tipo do objeto de mídia.

U!S?3! 5':#&'! %+8-%1! .8-#0+8%1! 5'! 5'1<-#8%-2! -'O.<#%&.5%1! .! &.I'P.VE%! '! .! 8-.&1#Vc'1B!Z11'1! .8-#0+8%1! 1'-E%! I#18%1! $.#1! .5#.&8'B! U! S?3! 5':#&'! .#&5.! %! 1'P+#&8'! 'O'$'&8%!%7<#%&.O!<%&8#5%!&+$!'O'$'&8%!5'!5'1<-#8%-q!

! 2#&*+%(,-"%P/%/5D: define um parâmetro do descritor como um par (propriedade,

valor). As propriedades e seus respectivos valores dependem do programa de

exibição da mídia associada ao descritor.

?.5.!5'1<-#8%-!7%5'!<%&8'-!5#I'-1%1!'O'$'&8%1!2#&*+%(,-"%P/%/5D2!5':#&#5%1!&%!:%-$.8%q!

! !

2#&*+%(,-"%7;;;D777772#&*+%(,-"%P/%/57)/5&9:)"5&P/%/5&-%":78/6[&9:8/6"%P/%/5&-%":7FD777772#&*+%(,-"%P/%/57)/5&9:)"5&P/%/5&-%":78/6[&9:8/6"%P/%/5&-%":7FD72F#&*+%(,-"%D7

=%-!'T'$7O%2!+$!5'1<-#8%-!7%5'!5':#&#-!+$!7.-d$'8-%!.5#<#%&.O!*"[)#J&8&62!<%$!%!I.O%-!=CB!%+!B=>, para indicar que a mídia correspondente deve ser reproduzida com o volume

a 90% do seu volume máximo:!2#&*+%(,-"%7(#9:#N&6/=)-&(%/:7%&'(")9:%'N&6/=)-&(%/:D7

72#&*+%(,-"%P/%/57)/5&9:*"[)#J&8&6:78/6[&9:<;C:7FD72F#&*+%(,-"%D7

^!+1%!5'!7.-d$'8-%1!5'!5'1<-#8%-!7-%$%I'!+$!.O8%!P-.+!5'!:O'T#0#O#5.5'B!?.0'!.!<.5.!7-%P-.$.! 5'! 'T#0#VE%! 5%! %0e'8%! 5'! $]5#.! [,6/$&%\! #&8'-7-'8.-! '11.1! 7-%7-#'5.5'1! 5.!:%-$.!.5',+.5.B!^1!7.-d$'8-%1!-'1'-I.5%1!7'O.!S?3!7%5'$!1'-!<%&1+O8.5%1!&.!&%-$.!kU/SW!S/A!KHjMj@G![GMMn\lB!

="55()*J)@16.0.0-()")9$-.")#2(#2."910%1)-.%")

W'&5%!5':#&#5%!.1!-'P#c'1!'!%1!5'1<-#8%-'12!%!7-XT#$%!7.11%!b!<-#.-!%1!%0e'8%1!5'!$]5#.!['O'$'&8%!5&#(/\!,+'!<%$7c'$!%!5%<+$'&8%B!3'$0-.&5%!%!'1,+'O'8%!5'!+$!5%<+$'&8%!S?32! .! 5':#&#VE%! 5%1! &X1! 5%! 5%<+$'&8%! b! :'#8.! &.! 1'VE%! !"#$2! ,+'! <%--'17%&5'! .%!<%&8'T8%! 5%! 5%<+$'&8%! <%$%!+$! 8%5%B!Z$! 1+.!5':#&#VE%!$.#1! .0-'I#.5.2! +$.!$]5#.!5'I'! 5':#&#-2! .Ob$! 5%! 1'+! #5'&8#:#<.5%-2! %! .-,+#I%! 5'! $]5#.! 7-%7-#.$'&8'! 5#8%! '! %!5'1<-#8%-!,+'!5':#&'!<%$%!.!$]5#.!1'-;!.7-'1'&8.5.!#&#<#.O$'&8'q!25&#(/7(#9:(#d&#(/:7*%+9:/%Z[(8";5,':7#&*+%(,-"%9:#d&#(/:7FD77

S%! 'T'$7O%! MK2! Y;! .7'&.1! +$.! $]5#.! 5'! I]5'%2! #5'&8#:#<.5.! <%$%! 4(2%356%7"'78B! ^!.-,+#I%! 5'! I]5'%! ,+'! 5'I'! 1'-! -'7-%5+)#5%! ,+.&5%! '11'! &X! :%-! #&#<#.5%! b! %! .-,+#I%!86%7"'78C)0*2!O%<.O#).5%!&+$!1+05#-'8X-#%!)%2(8!5%!5#-'8X-#%!%&5'!1'!'&<%&8-.!%!.-,+#I%!S?3q!25&#(/7(#9:8(#&"b!&%-[%/:7*%+9:5&#(/F/!&%-[%/;5,':777777777#&*+%(,-"%9:#N&6/=)-&(%/:FD7

.&%&(#&"*%(,&/#0(45(6*(,76/&(8-+(95(6*('-9$*:6-;(

>$!&X!5'!$]5#.!%+!5'!<%&8'f5%![9*0#'%,.0*%%+%&.,)*,)%,.0*\!5':#&'!%!%0e'8%!5'!$]5#.!7-%7-#.$'&8'! 5#8%q! I]5'%2! ;+5#%2! 8'T8%! '8<B! ?.5.! 5':#&#VE%! 5'! &X! 5'! $]5#.! 5'I'!.7-'1'&8.-2!.Ob$!5%!.-,+#I%!5'!%-#P'$!5.!$]5#.2!%!5'1<-#8%-!,+'!-'P+O.-;!.!.7-'1'&8.VE%!5.,+'O'!%0e'8%!5'!$]5#.B!S%!'T'$7O%!.&8'-#%-2!:%#!5':#&#5%!.7'&.1!+$!&X!5'!$]5#.2!5%!8#7%!I]5'%2!<Y.$.5%!4(2%356%7"'78B!>$!&X!5'!$]5#.!7%11+#!%1!1'P+#&8'1!.8-#0+8%1q!

! (#: identificador único do nó de mídia, utilizado nas referências ao nó (por exemplo,

nas portas dos nós de contexto que levam à mídia)

! -$,&: tipo de mídia, especificado como MIME, através de um dos seguintes valores: -&4-F.-56^7 -&4-F+**^7 -&4-F456^7 (5/'&F!5,^7 (5/'&F,)'^7 (5/'&F'(Q^7 (5/'&Fe,&'^7/[#("F!/*(+^7 /[#("F5,K^7 /[#("F5,E^7 /[#("F5,&'R^7 8(#&"F5,&'^7 /,,6(+/-(")F4@'()'/@HIJ[/^7 /,,6(+/-(")F4@'()'/@HIJ&-^7 /,,6(+/-(")F4@'()'/@*&--()'*^7 /,,6(+/-(")F4@'()'/@-(5&

! *%+: fonte do objeto de mídia. Trata-se do caminho para o arquivo de mídia. Esse

caminho pode ser relativo, a partir do diretório onde se encontra o arquivo NCL, ou

absoluto, através de uma URI.

! #&*+%(,-"%: identificador ((#) do descritor que controla a apresentação do objeto de

mídia

! %&Q&%: referência a um outro nó de mídia previamente definido, como forma de re-

uso de nó (utiliza os atributos do nó de mídia referenciado, exceto o (#). Esse

!!

atributo será visto mais adiante no exemplo 07, no caso de importação de um

programa NCL que se encontra em outro arquivo.

! )&G=)*-/)+&: utilizado apenas quando o atributo %&Q&% é definido. Estabelece se este

nó gera uma nova instância do objeto no formatador ou se reutiliza a instância

previamente criada.

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=.-.! <%&<O+#-! .! <-#.VE%! 5'11'! 7-#$'#-%! 'T'$7O%2! b!&'<'11;-#%!5':#&#-!7'O%!$'&%1!+$.!7%-8.! 5%! <%&8'T8%! 2!"#$D! ,+'! $.7'#'! 7.-.! +$! &X! 5'! $]5#.2! <+e.! .7-'1'&8.VE%! 1'-;!#&#<#.5.! ,+.&5%! %! 7-%P-.$.! :%-! 'T'<+8.5%B! S%! 'T'$7O%! MK2! %! <X5#P%! S?3!<%--'17%&5'&8'!i!7%-8.!5%!2!"#$D!b!%!1'P+#&8'q!2,"%-7(#9:,O(#&"b!&%-[%/:7+"5,")&)-9:8(#&"b!&%-[%/:FD7

.&%&(#&"*%(,&/#0(.-%$&#(

>$.! 7%-8.! [2,"%-D\! b! +$! 7%&8%! 5'! #&8'-:.<'! [#,)*+-'&*% (.#,)\! 5'! +$! <%&8'T8%2! ,+'!%:'-'<'!.<'11%!'T8'-&%!.%!<%&8'f5%![&X1!#&8'-&%1\!5'!+$!<%&8'T8%B!Z$!%+8-.1!7.O.I-.12!7.-.! +$! 'O%! .7%&8.-! 7.-.! +$!&X! #&8'-&%! .%! <%&8'T8%2! '18'! <%&8'T8%!5'I'!7%11+#-!+$.!7%-8.!,+'!O'I'!.%!&X!#&8'-&%!5'1'e.5%B>$.!7%-8.!7%11+#!%1!1'P+#&8'1!.8-#0+8%1q!

! (#: identificador único da porta, utilizado nas referências à porta (por exemplo, por

elos)

! +"5,")&)-: nó de mídia ou contexto ao qual a porta mapeia.

! ()-&%Q/+&: nome do ponto de interface de destino: (# da porta de um contexto ou da

âncora de destino no nó de mídia.

Z$!8%5%!5%<+$'&8%2!<%18+$.!Y.I'-!7'O%!$'&%1!+$.!7%-8.!5'!'&8-.5.![2,"%-D!&.!1'VE%!2!"#$D\! #&5#<.&5%! ,+.O! b! %! &X! 5'! $]5#.! %+! <%&8'T8%! #&#<#.OB! ?.1%! &E%! Y.e.! 7%-8.1!5':#&#5.1!7.-.!%!<%&8'T8%2!1'!%!<%&8'T8%!b!#&#<#.5%!&'&Y+$!&X!b!#&#<#.5%2!'!%!<%&8'T8%!7;-.!#$'5#.8.$'&8'B!?.1%!1'!,+'#-.!#&#<#.-!$.#1!5%!,+'!+$.!$]5#.!&%!#&]<#%!5.!'T#0#VE%!5'!+$!<%&8'T8%2!7%5'@1'!<-#.-!$.#1!7%-8.1B!S%8'!,+'! #11%! #&5#<.!.7'&.1!,+'!.1!$]5#.1!$.7'.5.1! 7'O.1! 7%-8.1- 1'-E%! #&#<#.5.1! e+&8%! <%$! %! <%&8'T8%2!$.1! &E%! #$7O#<.! ,+'! .1!$]5#.1!8'-$#&.-E%!.%!$'1$%!8'$7%B(

="55()WJ))+15%"0-()()-(8&910%()

=.-.!8'18.-!%!5%<+$'&8%2!'T'<+8'!%!7-%P-.$.!6#&P.@S?3!Z$+O.8%-g2!.0-.!%!5%<+$'&8%!S?3!'!<O#,+'!&%!0%8E%!5'!v7O.hvB!

Exemplo 02 ! Quando acontecer " isto " , faça " aquilo " : iniciando e terminando dois objetos de mídia simultaneamente ^!%0e'8#I%!5'18'!'T'$7O%!b!.7-'1'&8.-!5%#1!&X1!5'!$]5#.!1#$+O8.&'.$'&8'2!+$!5'!I]5'%![4(2%356%7"'78\! '! %+8-%! 5'! #$.P'$! [()*E';87<&"73\B! Z$!S?32! %! 1#&<-%&#1$%! 5'! #&]<#%! '!8b-$#&%! '&8-'! $]5#.1! b! 5.5%! 7%-! 'O%1! '&8-'! .1! $]5#.1B! ^! <%$7%-8.$'&8%! 5%! 'O%! b!5':#&#5%! 7'O%! <%&'<8%-! .! 'O'! .11%<#.5%B!^! <%&'<8%-! 5':#&'! ! +$!%+!$.#1! 7.7b#1! 7.-.! .!<%&5#VE%!5'!.8#I.VE%!5%!'O%!'!+$!%+!$.#1!7.7b#1!7.-.!.Vc'1!,+'!5'I'$!1'-!-'.O#).5.1!,+.&5%! %! 'O%! b! .8#I.5%B! S'18'! 'T'$7O%2! 1E%! +8#O#).5%1! %1! <%&'<8%-'1! 3&F%*(&G"87"! '!3&H&2G"30B!^!<%&'<8%-!3&F%*(&G"87"!b!0'$!1#$7O'1q!7%11+#!.7'&.1!+$!7.7'O!5'!<%&5#VE%!'!+$!7.7'O!5'!.8#I.VE%q!

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!g!^!6#&P.@S?3!Z$+O.8%-!7%5'!1'-!0.#T.5%!5.!7;P#&.!{'0!)+6;"%';!%B!

! !

! ")S&'(), condição indicando que o elo é ativado quando o nó ligado a este papel for

iniciado; e

! *-/%-, ação indicando que o elo, ao ser ativado, iniciará a exibição do nó ligado a

este papel.

U! vO'#8+-.v! 5'18'! <%&'<8%-! 7%5'! 1'-! :'#8.! 5.! 1'P+#&8'!$.&'#-.q!^! <%&'<8%-!3&F%*(&G"87"!#&#<#.!.!'T#0#VE%!5%!&X!O#P.5%!.%!7.7'O!*-/%-!.11#$!,+'!%!&X!O#P.5%!.%!7.7'O!")S&'()!b!'T#0#5%B! S'18'! 'T'$7O%2! b! &'<'11;-#%! <-#.-! 5%#1! 'O%1q! [#\! 'O%! +8#O#).&5%! %! <%&'<8%-!3&F%*(&G"87"!7.-.2!,+.&5%!4(2%356%7"'78!#&#<#.-2!#&#<#.-! ()*E';87<&"73x!'![##\!'O%!+8#O#).&5%!%!<%&'<8%-! 3&H&2G"30! 7.-.2! ,+.&5%! 4(2%356%7"'78 8'-$#&.-2! 8'-$#&.-! ()*E';87<&"73B! Z$!5#I'-1%1!'T'$7O%1!5'18'!5%<+$'&8%2!%1!'O%1!&E%!8'-E%!#5'&8#:#<.5%-'1B!"X!b!&'<'11;-#%!5':#&#-!%!#5'&8#:#<.5%-!5'!+$!'O%!,+.&5%!'O'!:%-!$.&#7+O.5%!7%-!<%$.&5%1!5'!'5#VE%!.%!I#I%B! S%! '&8.&8%2! 7%5'! 1'-! #&8'-'11.&8'! 5':#&#-! #5'&8#:#<.5%-'1! 7.-.! %1! 'O%1! 8.$0b$!<%$%!-'<+-1%!5'!5%<+$'&8.VE%2!7.-.!:.<#O#8.-!.!O'#8+-.!5%!5%<+$'&8%B!

onBeginStart

onEndStop

pVideoAbertura

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rgTelaInteira

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Figura 3.15. Visão (a) estrutural e (b) de leiaute do exemplo 02.

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="55()*J)@16.0.0-()")9$-.")8(2215#(0-10%1)\).9"/19)-()aB(%G(a)

=.-.!<-#.-!%!&X!5'!$]5#.!7.-.!.! #$.P'$2!5'I'@1'!'5#8.-!.!1'VE%!2!"#$D!'!.<-'1<'&8.-!%!'O'$'&8%! 5'! $]5#.! <%--'17%&5'&8'2! #&5#<.&5%! ,+.O! 5'1<-#8%-! 5'I'! 1'-! +8#O#).5%! 7.-.!#&#<#.-!1+.!.7-'1'&8.VE%q!25&#(/7(#9:(5'P[6/%=)-%":7*%+9:5&#(/F8&%#&P[6/%=)-%";'(Q:7777777777777777777777777777#&*+%(,-"%9:#S"-/":FD7

!!

="55()VJ)@16.0.0-()(5)8(018%(215)

=.-.! <-#.-! %1! 'O%1! ,+'! #&#<#.$! %+! 8'-$#&.$! .! .7-'1'&8.VE%! 5'! +$! %0e'8%! 5'! $]5#.!,+.&5%! %+8-%! #&#<#.! %+! 8'-$#&.2! b! &'<'11;-#%! <-#.-! <%&'<8%-'1! ,+'! 5':#&.$! '11'!<%$7%-8.$'&8%B! U! 5':#&#VE%! 5.! 0.1'! 5'! <%&'<8%-'1! 8.$0b$! b! :'#8.! &%! <.0'V.OY%! 5%!5%<+$'&8%!S?3B!

^1!'T'$7O%1!'!:'--.$'&8.1!5'!.+8%-#.!5%!6#&P.@S?3!e;!%:'-'<'$!+$!<%&e+&8%!7.5-E%!5'!<%&'<8%-'12!,+'!7%5'$!1'-!-'+8#O#).5%1!'$!5#I'-1%1!5%<+$'&8%1B!=.-.!:.)'-!'11'! -'@+1%2! 0.18.! #$7%-8.-! .! 0.1'! 5'! <%&'<8%-'1! 5'1'e.5.2! .8-.Ib1! 5%! 'O'$'&8%!(5,"%-S/*&2!<+e%!.8-#0+8%!23!')%&"IJ<!#&5#<.!.!O%<.O#).VE%!5%!.-,+#I%!<%&8'&5%!.!0.1'!5'!<%&'<8%-'1q!

2.&/#D77772+"))&+-"%S/*&D77777772(5,"%-S/*&7/6(/*9:5&[*I")&+-"%&*:7#"+[5&)-fg=9:+")&+-"%&*;)+6:7FD77772F+"))&+-"%S/*&D72F.&/#D7

^01'-I.@1'!,+'!b!&'<'11;-#%!:%-&'<'-!8.$0b$!+$!8;(8D!7.-.!.!0.1'2!,+'!1'-;!+8#O#).5%!&.!5':#&#VE%!5%1!'O%12!I#18.!$.#1!.5#.&8'2!7.-.!:.)'-!-':'-D&<#.!.%1!<%&'<8%-'1!5'11.!0.1'B!U1!8.0'O.1!.!1'P+#-!1+$.-#).$!.!5':#&#VE%!5%1!<%&'<8%-'173&F%*(&G"87"-%-3&H&2G"30q!

Tabela 3.6. Definição do conector !"#$%&"'()*(.

?X5#P%!S?3q! 2+/[*/6I"))&+-"%7(#9:")S&'()>-/%-:D7772*(5,6&I")#(-(")7%"6&9:")S&'():FD7772*(5,6&b+-(")7%"6&9:*-/%-:FD72F+/[*/6I"))&+-"%D7

3'#8+-.q! r+.&5%!%!&X!O#P.5%!.%!7.7'O!")S&'()!#&#<#.-2!!#&#<#.!%!&X!O#P.5%!.%!7.7'O!*-/%-B!![?.0'!.%!'O%!:.)'-!.1!O#P.Vc'1!<%$!%!<%&'<8%-2!%!,+'!&%1!7'-$#8#-;!1+018#8+#-!.1!'T7-'11c'1!1+0O#&Y.5.1!7'O%1!&X1!7-%7-#.$'&8'!5#8%1B\!

U! 5':#&#VE%! 5%! <%&'<8%-! %&Z&5"8%7! b! .&;O%P.2! +8#O#).&5%! %1! 7.7b#1! ")L)#! '! *-",B! ^1!<%&'<8%-'1!5'11'!'T'$7O%2!7%-8.&8%2!1E%!5':#&#5%1!5.!1'P+#&8'!$.&'#-.q!

2+"))&+-"%S/*&D72+/[*/6I"))&+-"%7(#9:")S&'()>-/%-:D7

2*(5,6&I")#(-(")7%"6&9:")S&'():FD72*(5,6&b+-(")7%"6&9:*-/%-:FD7

2F+/[*/6I"))&+-"%D772+/[*/6I"))&+-"%7(#9:")L)#>-",:D7772*(5,6&I")#(-(")7%"6&9:")L)#:FD7772*(5,6&b+-(")7%"6&9:*-",:FD72F+/[*/6I"))&+-"%D7

2F+"))&+-"%S/*&D7

.&%&(#&"*%(,&/#0(=-9*'$-%*#(

S%!S?C!'!&.!S?32!%!1#&<-%&#1$%!&E%!b!:'#8%!7%-!<.-#$0%1!5'!8'$7%![)#9*$)'9($\2!$.1!1#$!7%-!$'<.&#1$%1!5'!<.+1.O#5.5'!5':#&#5%1!&%1!<%&'<8%-'1![&.,,*&).+$\B!^!<%&'<8%-!5':#&'! %1! 7.7b#1! [+.5*$\! ,+'! %1! &X1! 5'! %-#P'$! '! 5'! 5'18#&%! 'T'-<'$! &%1! 'O%1! ,+'!+8#O#).$!%!<%&'<8%-B!S.!S?3!gBM2!'T#18'!.7'&.1!+$!8#7%!5'!<%&'<8%-q!%!<%&'<8%-!<.+1.O![&'/$'5%&.,,*&).+\B!>$!<%&'<8%-!<.+1.O!5':#&'!<%&5#Vc'1![&.,0#)#.,$\!1%0!.1!,+.#1!%!'O%!7%5'!1'-!.8#I.5%2!'!.1!.Vc'1!['&)#.,$\!,+'!1'-E%!-'.O#).5.1!,+.&5%!%!'O%!:%-!.8#I.5%B!>$!<%&'<8%-!<.+1.O!5'I'!7%11+#-!7'O%!$'&%1!+$.!<%&5#VE%!'!+$.!.VE%B!?.5.!<%&5#VE%!%+!

! !

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Z$!P'-.O2!%!<%$7%-8.$'&8%!5'!+$!<%&'<8%-!7%5'!1'-!O#5%!5.!1'P+#&8'!$.&'#-.q!v,+.&5%! <%&5#VE%2! '&8E%! .VE%vB! =%-! 'T'$7O%q! v,+.&5%! �.OP+$! &X�! #&#<#.-2! 8'-$#&.!�.OP+$!&X�vB!^!<%&'<8%-!5':#&'!%1!7.7b#1!5'!<%&5#VE%!'!.VE%!['BPB!#&#<#.-2!8'-$#&.-\2!'!<.0'! .%1! 'O%1! O#P.-! &X1! .! '11'1! 7.7b#1B! ^1! 1'P+#&8'1! 7.7b#1! 5'! 8(0-.FG(! 1E%!7-'5':#&#5%1q! ")S&'()^7 ")L)#^7 ")b!"%-^7 ")P/[*&^7 ")g&*[5&^7 ")>&6&+-(")^7

")S&'()b--%(![-(")^7 ")L)#b--%(![-(")B! ^1! 1'P+#&8'1! 7.7b#1! 5'! "FG(! 1E%! 7-'5':#&#5%1q!*-/%-^7*-",^7/!"%-^7,/[*&^7%&*[5&^7*&-B!

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^!7-#$'#-%!'O%!.!1'-!<-#.5%!b!%!'O%!,+'!5'I'! #&#<#.-!.!.7-'1'&8.VE%!5%!&X! ()*E';87<&"73-

.11#$! ,+'! .! .7-'1'&8.VE%! 5%! &X! 4(2%356%7"'78! b! #&#<#.5.B! Z$! %+8-.1! 7.O.I-.12! v,+.&5%!4(2%356%7"'78! #&#<#.-2! #&#<#.! ()*E';87<&"73vB! ZT.$#&.&5%! .! 5':#&#VE%! 5%1! <%&'<8%-'1!5':#&#5%1! &%! 7.11%! .&8'-#%-2! %01'-I.@1'! ,+'! '11'! <%$7%-8.$'&8%! b! 5':#&#5%! 7'O%!<%&'<8%-!3&F%*(&G"87"B!^!'O%!.!1'-!5':#&#5%!5'I'!'&8E%!O#P.-!.!$]5#.!4(2%356%7"'78-.%!7.7'O!3&F%*(&!'!.!$]5#.!()*E';87<&"73-.%!7.7'O!*-/%-B!

U!5':#&#VE%!5%!'O%!b!:'#8.!&%!<%-7%!5%!5%<+$'&8%![1'VE%!2!"#$D\2!P'-.O$'&8'!.0.#T%!5.!5':#&#VE%!5.1!$]5#.1q!26()h74+"))&+-"%9:")S&'()>-/%-:D77772!()#7+"5,")&)-9:8(#&"b!&%-[%/:7%"6&9:")S&'():7FD7777772!()#7+"5,")&)-9:(5'P[6/%=)-%":7%"6&9:*-/%-:7FD72F6()hD7

^!'O%!7.-.!1#&<-%&#).-!%!8b-$#&%!5'!'T#0#VE%!5.1!$]5#.1!b!5':#&#5%!5'!:%-$.!.&;O%P.q!26()h74+"))&+-"%9:")L)#>-",:D77772!()#7+"5,")&)-9:8(#&"b!&%-[%/:7%"6&9:")L)#:7FD77772!()#7+"5,")&)-9:(5'P[6/%=)-%":7%"6&9:*-",:7FD72F6()hD7

.&%&(#&"*%(,&/#0(>?-#(

^1! 'O%1! [5#,\$\! .11%<#.$! &X1! .8-.Ib1! 5'! <%&'<8%-'1! [&.,,*&).+$\2! ,+'! 5':#&'$! .!1'$d&8#<.!5.!.11%<#.VE%!'&8-'!%1!&X1B!U!S?3!5':#&'!%1!1'P+#&8'1!.8-#0+8%1!5'!'O%1q!

! (#: identificador único do elo

! 4+"))&+-"%: identificador do conector associado ao elo

U!S?3!5':#&'!%1!1'P+#&8'1!'O'$'&8%1!<%&8#5%1!&+$!'O'$'&8%!5'!'O%q!

! 6()hP/%/5: define um parâmetro do elo como um par <propriedade, valor>. As

propriedades e seus respectivos valores dependem da definição do conector ao qual

o elo está associado. Um elo pode conter diversos elementos 6()hP/%/5.

! !()#: indica uma ligação entre um componente (+"5,")&)-, nó de mídia ou de

contexto) e seu papel (%"6&) no elo, conforme a semântica do conector. Em alguns

casos deve-se indicar também o ponto de interface (()-&%Q/+&) do nó ao qual o elo é

ligado: uma porta de contexto, uma âncora de conteúdo ou uma propriedade de um

nó de mídia. Um elo pode conter diversos elementos !()#, mas deve conter pelo

menos um !()# para cada papel definido no conector.

^!'O'$'&8%!D#,0!7%5'!.#&5.!<%&8'-!+$.!%+!$.#1!#&18d&<#.1!5%!1'P+#&8'!'O'$'&8%!<%$%!'O'$'&8%1!:#OY%1q!

!!

! !()#P/%/5: define um parâmetro específico do !()# como um par <propriedade,

valor>. As propriedades e seus respectivos valores dependem da definição do

conector ao qual o elo está associado.

^1! <%&'<8%-'1! ")S&'()>-/%-! '! ")L)#>-",7 1E%! 0'$! 1#$7O'12! 7%#1! #&<O+'$! .7'&.1! +$.!<%&5#VE%! '! +$.! .VE%2! '!&E%!'&I%OI'$!7.-d$'8-%1!5'! <%&'<8%-B!C.#1! .5#.&8'!I'-'$%1!%+8-%1!<%&'<8%-'1!$.#1!'O.0%-.5%12!,+'!.P-+7.$!<%&5#Vc'1!'!.Vc'12!7'-$#8'$!.!O#P.VE%!5'!$.#1!5'!+$!&X!.!+$!$'1$%!7.7'O!%+!.<'#8.$!7.-d$'8-%1B!

Exemplo 03 ! Interação do usuário: inter rompendo um vídeo e iniciando outro ^! %0e'8#I%! 5'18'! 'T'$7O%! b! $%5#:#<.-! %! 'T'$7O%! .&8'-#%-! 7.-.! ,+'! %! +1+;-#%! 7%11.!7-%11'P+#-!7.-.!+$!1'P+&5%!I]5'%![4(2%3E7(&!(08;\!7-'11#%&.&5%!.!8'<O.!I'-5'!5%!<%&8-%O'!-'$%8%B! U$0%1! %1! I]5'%1! 5'I'$! 1'-! .7-'1'&8.5%1! &.! $'1$.! 7%1#VE%! 5.! 8'O.B! =.-.!<.78+-.-! .! #&8'-.VE%! 5%! +1+;-#%! <%$! %! <%&8-%O'! -'$%8%2! 7-'<#1.$%1! 5'! +$! &%I%!<%&'<8%-2!5'18.!I')!+$!,+'!+8#O#)'!%!7.7'O!7-'5':#&#5%!")>&6&+-(")2!'!,+'!-'<'0.!<%$%!7.-d$'8-%! %! <X5#P%! 5.! 8'<O.! ,+'! 1'! 5'1'e.! <.78+-.-B! ^! <%$7%-8.$'&8%! 5%! 'O%! ,+'!+8#O#).-;!%!<%&'<8%-!5'I'!1'-q!5+-.&8'!.!'T#0#VE%!5'! ()*E';87<&"732!,+.&5%!.! 8'<O.!I'-5'![igLLH\! 5%! <%&8-%O'! -'$%8%! :%-! 7-'11#%&.5.2! 7;-.! %! I]5'%! 5'! .0'-8+-.! [4(2%356%7"'78\B!r+.&5%! %! I]5'%! 5'! .0'-8+-.! 8'-$#&.2! %! 'O%! ,+'! 8'-$#&.! .! 'T#0#VE%! 5.! #$.P'$!()*E';87<&"73!'!%!'O%!,+'!#&#<#.!.!'T#0#VE%!5%!I]5'%!7-#&<#7.O![4(2%3E7(&!(08;\!1E%!.8#I.5%12!-'1+O8.&5%!&%!<%$7%-8.$'&8%!5'1'e.5%B!=.-.!,+'!%!8'O'17'<8.5%-!1.#0.!,+.O!b!.!8'<O.!,+'!7%5'!7-'11#%&.-!.!<.5.!#&18.&8'2!b!#$7%-8.&8'!,+'!+$.!$]5#.!1'e.!'T#0#5.!#&5#<.&5%!.1!%7%-8+&#5.5'1! 5'! #&8'-.VE%B! 911%! e;! '18;! 1'&5%! :'#8%! 7'O.! $]5#.! ()*E';87<&"732! ,+'! .8b!.P%-.!&E%!7%11+].!<%$7%-8.$'&8%!5'!#&8'-.8#I#5.5'!.!'O.!.11%<#.5%B!

S'18'!'T'$7O%2!b!.<-'1<'&8.5%!+$!'O%!,+'!+8#O#).!%!<%&'<8%-!3&K%LG%;%!"(3&G"302!.!1'-! <-#.5%!7.-.! <.78+-.-!%!7-'11#%&.$'&8%!5.! 8'<O.!I'-5'! [igLLH\!5%!<%&8-%O'! -'$%8%!'!7.-.-!%!I]5'%!5'!.0'-8+-.![4#P+-.!gBKj\B!

onBeginStart

onEndStop

pVideoAbertura

bodyvideoAbertura imgPularIntro

videoPrincipal

onEndStart

onKeySelectionStopkey=GREEN

Figura 3.16. Visão estrutural do exemplo 03.

="55()DJ)@16.0.0-()()8(018%(2)

^1! <%&'<8%-'1! +8#O#).5%1! &'18'! 'T'$7O%! 1E%q! 3&F%*(&G"87"2! 3&H&2G"302! 3&H&2G"87"! '!3&K%LG%;%!"(3&G"30B! ^1! <%&'<8%-'1! 3&F%*(&G"87",- 3&H&2G"30! '! 3&H&2G"87"! :%-.$! 5':#&#5%1!.&8'-#%-$'&8'B!U!8.0'O.!.!1'P+#-!.7-'1'&8.!.!5':#&#VE%!5%!<%&'<8%-!3&K%LG%;%!"(3&G"30q!

! !

Tabela 3.7. Conector onKeySelectionStop.

?X5#P%!S?3q!

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3'#8+-.q! Z&,+.&8%! %! &X! O#P.5%! .%! 7.7'O! ")>&6&+-(")! :%-! .7-'1'&8.5%2!!,+.&5%! .! 8'<O.! 8:%!;8- :%-! 7-'11#%&.5.2!!7;-.!%!&X!O#P.5%!.%!7.7'O!*-",B!

^01'-I.VE%q! ^1!'O%1!,+'!+8#O#).-'$!'18'!<%&'<8%-!5'I'-E%!#5'&8#:#<.-2!<%$%!7.-d$'8-%!.5#<#%&.O! 5.! O#P.VE%! <%$! %! &X! 5'! %-#P'$! [!()#P/%/57 "[7 6()hP/%/5\2! %!<X5#P%!I#-8+.O!5.!8'<O.!5%!<%&8-%O'!-'$%8%!.11%<#.5.!i!1'O'VE%2!.8-.Ib1!5%!7.-d$'8-%!8:%!;8B!=%-!'T'$7O%q!!2!()#7+"5,")&)-9:(5'P[6/%=)-%":7%"6&9:")>&6&+-("):D7

2!()#P/%/57)/5&9:/N&+6/:78/6[&9:igLLH:7FD7

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2+"))&+-"%P/%/57)/5&9:/N&+6/:7FD72*(5,6&I")#(-(")7%"6&9:")>&6&+-("):7h&$9:k/N&+6/:7FD72*(5,6&b+-(")7%"6&9:*-",:7FD7

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26()h74+"))&+-"%9:")j&$>&6&+-(")>-",:D72!()#7+"5,")&)-9:(5'P[6/%=)-%":7%"6&9:")>&6&+-("):D7

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2F6()hD7

F.O'! %01'-I.-! ,+'2! <%$%! %! 7.7'O! ")>&6&+-(")! '18;! .11%<#.5%! i! $]5#.! ()*E';87<&"732! b!&'<'11;-#%! ,+'! '18.!$]5#.! '18'e.! 1'&5%! .7-'1'&8.5.! 7.-.! ,+'! %! 'O%! 7%11.! 1'-! .8#I.5%B!Z&,+.&8%!.!'T#0#VE%!5.!$]5#.! ()*E';87<&"73!&E%!8#I'-!1#5%!#&#<#.5.2!'11'!'O%!&E%!7%5'-;!1'-!.8#I.5%B!!

.&%&(#&"*%(,&/#0(=56/1-#(6*($*'?&#(6-('-9$%-?*(%*,-$-(

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Exemplo 04 ! T rabalhando com bases de conectores em arquivos separados ?%$%! 5#8%! .&8'-#%-$'&8'2! 'T#18'$! 5+.1! :%-$.1! 5'! 1'! 5':#&#-! '! +8#O#).-! <%&'<8%-'1q![.\!5':#&#&5%!%1!&%I%1!<%&'<8%-'1!&%!7-X7-#%!Y#7'-5%<+$'&8%x!%+![0\!<-#.&5%!+$!&%I%!

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.5%8.5.!.!'18-.8bP#.![.\B!S'18'!'T'$7O%2!b!.5%8.5.!.!'18-.8bP#.![0\2!1'7.-.&5%!%!.-,+#I%!5'!<%&'<8%-'1!'!#$7%-8.&5%@%!&%!7-%P-.$.!7-#&<#7.OJB!

="55()DJ)!2."0-()"2U&.3()-1)8(018%(215)

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! /6(/*: "apelido" do arquivo importado. Trata-se do nome que será utilizado como

prefixo para se referir aos elementos importados, no formato

80%;(23O(2P23P%;%)%&"3P()037"823. No caso do exemplo, a base de conectores foi

importada com o /6(/* )%'D?3&%!"37%D. Para se referir ao conector 3&H&2G"30 dentro do

arquivo importado, deve-se utilizar a string )%'D?3&%!"37%DO3&H&2G"30.

! #"+[5&)-fg=: a localização e nome do arquivo que contém a base a ser importada.

Nesse exemplo, como o arquivo de conectores está no mesmo diretório que o

arquivo do programa, bastou definir apenas o nome do arquivo.

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!J! Z18'! 5%<+$'&8%! <Y.$.! 5'! v7-%P-.$.! 7-#&<#7.Ov! %! .-,+#I%!S?3! 7%-! %&5'! %! 7-%P-.$.! <%$'V.! .! 1'-!'T'<+8.5%B!

! !

! %&'("): no caso de o arquivo importado conter uma base de regiões, define qual

região do programa que conterá as regiões importadas.

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Exemplo 05 ! Sincronizando uma imagem com um trecho de vídeo (âncoras) ?%$%!<%&8#&+.VE%!5%!'T'$7O%!.&8'-#%-2!'18.!1'VE%!.7-'1'&8.!+$!7-%P-.$.!,+'2!

&+$! 5'8'-$#&.5%! 8-'<Y%! ! 5%! I]5'%! 7-#&<#7.O! [4(2%3E7(&!(08;\2! .7-'1'&8.! +$.! #$.P'$![()*<&"%78"(4(282%\B!S%!7-XT#$%!'T'$7O%2!1'-;!.11%<#.5%!+$!<%$7%-8.$'&8%!#&8'-.8#I%!.!'11.! #$.P'$B! S'18'! 'T'$7O%2! .7'&.1! .! #$.P'$! 1'-;! 'T#0#5.2! $.1! &'&Y+$.! 8'<O.! 5%!<%&8-%O'!-'$%8%!1'-;!<.78+-.5.B!=.-.!5':#&#-!%!8-'<Y%!5%!I]5'%!'$!,+'!.!#$.P'$!5'I'!.7.-'<'-2! b!&'<'11;-#%! <-#.-!+$.!c08(2")-1)8(0%1S-(! ['O'$'&8%!2/%&/D\!7.-.!%!I]5'%2!5':#&#&5%!%!#&8'-I.O%!5'!'T#0#VE%!5.!#$.P'$B!r+.&5%!.!d&<%-.!<%$'V.-2!5'I'@1'!'T#0#-!.!#$.P'$2!+8#O#).&5%@1'!%!<%&'<8%-!3&F%*(&G"87"B!U%!8b-$#&%!5.!d&<%-.2!5'I'@1'!8'-$#&.-!.!'T#0#VE%!5.!#$.P'$2!+8#O#).&5%@1'!%!<%&'<8%-!3&H&2G"30![4#P+-.!gBKn\B!

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Figura 3.17. Visão estrutural do exemplo 05.

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! (#: identificador único da âncora

! !&'(): início da âncora, em segundos, no formato "99.9s" (atributo válido para

mídias contínuas)

! &)#: término da âncora, em segundos, no formato "99.9s" (atributo válido para

mídias contínuas)

! Q(%*-: início da âncora, em quadros (atributo válido para mídias contínuas)

! 6/*-: término da âncora, em quadros (atributo válido para mídias contínuas)

! -&4-: texto da âncora no arquivo de origem (atributo válido para mídias de texto)

! ,"*(-("): posição do texto da âncora no arquivo de origem (atributo válido para

mídias de texto)

! +""%#*: coordenadas em pixels dos vértices do polígono que determina a âncora

espacial (atributo válido para mídias visuais), no formato "o0^p0^7oE^pE^;;;^o)^p)"

! /)+."%J/!&6: identificador da âncora no arquivo de origem, tal como interpretado

pela ferramenta de exibição.

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Exemplo 06 ! Manipulação de propriedades de mídias: redimensionando um vídeo durante a exibição do menu ?%&8#&+.&5%!%!'T'$7O%!.&8'-#%-2!,+.&5%!%!$'&+!b!#&#<#.5%2!'18'!'T'$7O%!-'5#$'&1#%&.!%! I]5'%!7-#&<#7.O! '! 'T#0'! +$.! #$.P'$!5'! :+&5%B!^!,+'! 1'! 7%5'!$.&#7+O.-! 5+-.&8'! .!'T'<+VE%!5%!7-%P-.$.!1E%!#2(#2.1-"-15)-(5)0O5)-1)9$-."2!$.1!&E%!5.1!-'P#c'1B!Z$!%+8-.1! 7.O.I-.12! +$.! -'P#E%! 5':#&'! .! 7%1#VE%! '! .1! 5#$'&1c'1! '$! ,+'! +$.!$]5#.! 1'-;!#,#&#'59*,)*!.7-'1'&8.5.B!Z11.1!7-%7-#'5.5'1!7.11.$!7.-.!%!&X!5'!$]5#.!7-%7-#.$'&8'!5#8%2!%&5'!'&8E%!7%5'$!1'-!$.&#7+O.5.1!7%-!'O%1B!

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Figura 3.18. Visão estrutural do exemplo 06.

!!

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Passo 2: Definindo a âncora de propriedade do vídeo

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Tabela 3.8. Conector onBeginSetStart.

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! !

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Exemplo 07 ! Importação de programas N C L : menu num documento N C L separado Z18'! 'T'$7O%! $%5#:#<.! %! 'T'$7O%! .&8'-#%-! 7.-.! 5'18.<.-! %! $'&+! &+$! .-,+#I%! S?3!1'7.-.5%! '! #$7%-8;@O%! &%! 7-%P-.$.! S?3! 7-#&<#7.OB! =.-.! #O+18-.-! .! 1'7.-.VE%! 5%1!.-,+#I%1!'!-':'-D&<#.!.!<%&8'T8%1!'$!5#:'-'&8'1!.-,+#I%12!.!4#P+-.!gBKL!.7-'1'&8.!.!I#1E%!'18-+8+-.O!5%!'T'$7O%!nq!

onBeginStart

onEndStop

pVideoAbertura

bodyvideoAbertura imgPularIntro

videoPrincipal

onEndStart

onKeySelectionStop

key=GREEN

imgInteratividade

onBeginStartonEndStop

onKeySelectionStartStop

key=RED

start

stop

onBeginSet

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fundo

onBeginStart

exemplo7.ncl

menuV1.nclmenuItem1

menuItem2

menuItem3

menuItem4

pMenuItem1

pMenuItem2

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menu (docMenu

#menu)

Figura 3.19. Visão estrutural do exemplo 7.

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Exemplo 08 ! Navegando com as setas do controle remoto e selecionando um item de menu com a tecla de ativação (O K) Z18'!'T'$7O%!.<-'1<'&8.!<%$7%-8.$'&8%!5'!&.I'P.VE%!.%1! #8'&1!5'!$'&+!5%!'T'$7O%!.&8'-#%-B!^! #8'$! '$! :%<%! 8'$! +$.! 1+.! #$.P'$! .O8'-.5.! '! +$.!$%O5+-.! .<-'1<'&8.5.!7.-.!-':O'8#-!,+.O!1'-#.!%!#8'$!.8#I.5%!.%!7-'11#%&.-!%!0%8E%!5'!.8#I.VE%![^u2!Z&8'-!%+!',+#I.O'&8'\B!r+.&5%!%!+1+;-#%! 1'O'<#%&.-!%!7-#$'#-%! #8'$!5%!$'&+2!%!7-%P-.$.!5'I'!#&#<#.-! +$! 7-%P-.$.! S?3! 5':#&#5%! &+$! .-,+#I%! 1'7.-.5%B! ^! 7-%P-.$.! #$7%-8.5%!<%&1#18'! 5'! +$! I]5'%! '$! 8'O.! #&8'#-.! <%$! g! O'P'&5.1! 1#&<-%&#).5.1! .! 5'8'-$#&.5%1!8-'<Y%1!5%!I]5'%B!^!.-,+#I%!#$7%-8.5%!<Y.$.@1'!073*+9+C&!;B!

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.&%&(#&"*%(,&/#0(&$%/"+$-#(6*(6*#'%/$-%(%*?&'/-9&6-#('-,(9&C*1&FG-(! Q"+[*=)#&4: define um índice de navegação para o objeto de mídia associado ao

descritor. Caso não seja definido um índice, o objeto de mídia não poderá receber o

foco da navegação. O foco inicial estará no objeto com Q"+[*=)#&4 menor. Vale

observar que o valor de Q"+[*=)#&4 não é necessariamente um número e, nesse caso,

"menor" significa lexicograficamente menor.

! Q"+[*S"%#&%I"6"%: define a cor da moldura que destaca o elemento em foco, ou seja,

do retângulo que deve aparecer sobrescrito à região deste descritor quando o objeto a

ele associado receber o foco. Pode ser um dos seguintes valores: G.(-&^7 !6/+h^7*(68&%^7 '%/$^7 %&#^7 5/%"")^7 Q[+.*(/^7 ,[%,6&^7 6(5&^7 '%&&)^7 $&66"G^7 "6(8&^7 !6[&^7

)/8$^7/Z[/^ ou7-&/6.

! Q"+[*S"%#&%r(#-.: define a espessura, em pixels, da moldura deste descritor quando o

elemento a ele associado receber o foco. Caso seja igual a 0, nenhuma borda será

apresentada. Um valor positivo indica que a borda estará fora do conteúdo do objeto,

ao passo que um valor negativo indica que a borda será desenhada sobre o conteúdo

do objeto.

! Q"+[*S"%#&%N%/)*,/%&)+$: define a porcentagem de transparência da moldura. Deve

ser um valor real entre 0 e 1 (ou um valor em porcentagem, entre 0 e 100%), onde 0

significa totalmente opaco e 1 significa totalmente transparente.

! Q"+[*>%+: define o caminho de uma mídia alternativa que deve ser exibida quando o

elemento associado a este descritor estiver com o foco. Segue o mesmo formato do

atributo *%+ do elemento 5&#(/.

!!

! Q"+[*>&6>%+: define o caminho de uma mídia alternativa que deve ser exibida quando

for pressionado a tecla de ativação (OK, Enter ou equivalente) enquanto o elemento

associado a este descritor estiver com o foco. Segue o mesmo formato do atributo

*%+ do elemento 5&#(/.

! *&6S"%#&%I"6"%: define uma cor de moldura que deve ser exibida quando for

pressionada a tecla de ativação (OK, Enter ou equivalente) enquanto o elemento

associado a este descritor estiver com o foco

! 5"8&J&Q-: identifica o índice de navegação do elemento E que deve receber o foco

caso seja pressionada a seta para a esquerda do controle remoto enquanto o elemento

associado a este descritor estiver com o foco (definido pelo atributo Q"+[*=)#&4 do

elemento E). Caso o elemento que receberia o foco esteja com 8(*(!6& igual a V8;D%, o

foco não se desloca. Os atributos moveRight, moveUp e moveDown são análogos,

considerando as setas para cima, para baixo e para a direita, respectivamente.

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Figura 3.20. Visão estrutural do exemplo 09.

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Tabela 3.10. Conector onBeginPropertyTestStart.

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Tabela 3.11. Conector onKeySelectionSetStartStopDelay.

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3'#8+-.q! r+.&5%!%!&X!O#P.5%!.%!7.7'O!")>&6&+-(")!b!1'O'<#%&.5%2!!.8-#0+#!%!I.O%-!398;37!i!7-%7-#'5.5'!O#P.5.!.%!7.7'O!*&-![.7X1!+$!-'8.-5%!5'!3J%"8723]2!!#&#<#.!%!&X!O#P.5%!.%!7.7'O!*-/%-!![.7X1!+$!-'8.-5%!5'!3J%"8723]-'!!7;-.!%!&X!O#P.5%!.%!7.7'O!*-",![.7X1!+$!-'8.-5%!5'!3J%"8723]B!

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Figura 3.21. Visão estrutural parcial do programa prog1V4.ncl do exemplo 10.

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