From 42f8cc62631c3d3f7795049a29e135b2a1b028cf Mon Sep 17 00:00:00 2001 From: Date: Sun, 15 Jan 2006 17:09:53 +0000 Subject: creation of voip-engine tree, with some docs 20060115170953-25e70-894c2cacfd64b2cef58e771ddfae0aa1c57d9fab.gz --- AUTHORS | 0 COPYING | 463 ++++++++++++++++++++++++++++++++++++++++++++++++++ ChangeLog | 0 INSTALL | 236 ++++++++++++++++++++++++++ Makefile.am | 3 + NEWS | 0 README | 0 _boring | 70 ++++++++ configure.ac | 49 ++++++ doc/.git-darcs-dir | 0 doc/Makefile.am | 15 ++ doc/make-call.pic | 136 +++++++++++++++ doc/sequence.pic | 486 +++++++++++++++++++++++++++++++++++++++++++++++++++++ m4/.git-darcs-dir | 0 m4/seq-dias.m4 | 33 ++++ 15 files changed, 1491 insertions(+) create mode 100644 AUTHORS create mode 100644 COPYING create mode 100644 ChangeLog create mode 100644 INSTALL create mode 100644 Makefile.am create mode 100644 NEWS create mode 100644 README create mode 100644 _boring create mode 100644 configure.ac create mode 100644 doc/.git-darcs-dir create mode 100644 doc/Makefile.am create mode 100644 doc/make-call.pic create mode 100644 doc/sequence.pic create mode 100644 m4/.git-darcs-dir create mode 100644 m4/seq-dias.m4 diff --git a/AUTHORS b/AUTHORS new file mode 100644 index 0000000..e69de29 diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..68e307c --- /dev/null +++ b/COPYING @@ -0,0 +1,463 @@ + + GNU LESSER GENERAL PUBLIC LICENSE + Version 2.1, February 1999 + + Copyright (C) 1991, 1999 Free Software Foundation, Inc. + 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the Lesser GPL. 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Here is a another example: + + /bin/bash ./configure CONFIG_SHELL=/bin/bash + +Here the `CONFIG_SHELL=/bin/bash' operand causes subsequent +configuration-related scripts to be executed by `/bin/bash'. + +`configure' Invocation +====================== + +`configure' recognizes the following options to control how it operates. + +`--help' +`-h' + Print a summary of the options to `configure', and exit. + +`--version' +`-V' + Print the version of Autoconf used to generate the `configure' + script, and exit. + +`--cache-file=FILE' + Enable the cache: use and save the results of the tests in FILE, + traditionally `config.cache'. FILE defaults to `/dev/null' to + disable caching. + +`--config-cache' +`-C' + Alias for `--cache-file=config.cache'. + +`--quiet' +`--silent' +`-q' + Do not print messages saying which checks are being made. To + suppress all normal output, redirect it to `/dev/null' (any error + messages will still be shown). + +`--srcdir=DIR' + Look for the package's source code in directory DIR. Usually + `configure' can determine that directory automatically. + +`configure' also accepts some other, not widely useful, options. Run +`configure --help' for more details. + diff --git a/Makefile.am b/Makefile.am new file mode 100644 index 0000000..7da3179 --- /dev/null +++ b/Makefile.am @@ -0,0 +1,3 @@ +ACLOCAL_AMFLAGS = -I m4 + +SUBDIRS = doc diff --git a/NEWS b/NEWS new file mode 100644 index 0000000..e69de29 diff --git a/README b/README new file mode 100644 index 0000000..e69de29 diff --git a/_boring b/_boring new file mode 100644 index 0000000..51eadc0 --- /dev/null +++ b/_boring @@ -0,0 +1,70 @@ +# Boring file regexps: +\.hi$ +\.o$ +\.o\.cmd$ +\.ko$ +\.ko\.cmd$ +\.mod\.c$ +(^|/)\.tmp_versions($|/) +(^|/)CVS($|/) +(^|/)RCS($|/) +~$ +#(^|/)\.[^/] +(^|/)_darcs($|/) +\.bak$ +\.BAK$ +\.orig$ +(^|/)vssver\.scc$ +\.swp$ +\.swo$ +(^|/)MT($|/) +(^|/)\{arch\}($|/) +(^|/).arch-ids($|/) +(^|/), +\.class$ +\.prof$ +(^|/)\.DS_Store$ +(^|/)BitKeeper($|/) +(^|/)ChangeSet($|/) +(^|/)\.svn($|/) +\.py[co]$ +\# +\.cvsignore$ +(^|/)Thumbs\.db$ +(^|/)Makefile$ +(^|/)Makefile.in$ +^aclocal.m4$ +^autom4te.cache($|/) +^config.guess$ +^config.h$ +^config.h.in$ +^config.log$ +^config.status$ +^config.sub$ +^configure$ +^install-sh$ +^libtool$ +^ltmain.sh$ +^missing$ +^stamp-h1$ +^depcomp$ +^compile$ +(^|/).deps($|/) +(^|/).libs($|/) +\.lo$ +\.la$ +\-glue.(c|h)$ +\-marshal.(c|h)$ +\-enumtypes.(c|h)$ +\-bindings.(c|h)$ +\.pc$ +^tests/farsight_test$ +^tests/sip_test$ +^po/POTFILES$ +^docs/core/farsight-decl-list.txt$ +^docs/core/farsight-decl.txt$ +^docs/core/farsight-overrides.txt$ +^docs/core/farsight-undocumented.txt$ +^docs/core/html($|/) +^docs/core/tmpl($|/) +^docs/core/xml($|/) diff --git a/configure.ac b/configure.ac new file mode 100644 index 0000000..cc5379a --- /dev/null +++ b/configure.ac @@ -0,0 +1,49 @@ +AC_INIT(Makefile.am) + +AM_INIT_AUTOMAKE(libtelepathy, 0.1.`date +%Y%m%d`) +AM_CONFIG_HEADER(config.h) +AC_CANONICAL_HOST + +AC_CONFIG_MACRO_DIR([m4]) + +AC_PROG_LIBTOOL +AC_PROG_CC +AC_PROG_CC_STDC +AC_PROG_INSTALL +AC_PROG_LIBTOOL + +CFLAGS="$CFLAGS -Wall -ansi" + +AC_SUBST(ERROR_CFLAGS) + +AC_HEADER_STDC([]) +AC_C_INLINE + +dnl options for building sequence diagrams +SEQ_DIAS + +dnl Check for Glib +PKG_CHECK_MODULES(GLIB, gobject-2.0 >= 2.4, have_glib=yes, have_glib=no) + +if test x$have_glib = xno ; then + AC_MSG_ERROR([GLib development libraries not found]) +fi +GLIB_GENMARSHAL=`$PKG_CONFIG --variable=glib_genmarshal glib-2.0` +AC_SUBST(GLIB_CFLAGS) +AC_SUBST(GLIB_LIBS) +AC_SUBST(GLIB_GENMARSHAL) + +dnl Check for DBus +PKG_CHECK_MODULES(DBUS, [dbus-1 >= 0.51, dbus-glib-1 >= 0.51], have_dbus=yes, have_dbus=no) + +AC_SUBST(DBUS_CFLAGS) +AC_SUBST(DBUS_LIBS) + +dnl TODO Error if dbus isn't found + +AC_OUTPUT( Makefile \ + doc/Makefile +) + + + diff --git a/doc/.git-darcs-dir b/doc/.git-darcs-dir new file mode 100644 index 0000000..e69de29 diff --git a/doc/Makefile.am b/doc/Makefile.am new file mode 100644 index 0000000..ee319fe --- /dev/null +++ b/doc/Makefile.am @@ -0,0 +1,15 @@ +CLEANFILES = + +if MAKE_SEQ_DIAS + +SEQ_DIA_PICS = make-call.pic recieve-call.pic +SEQ_DIA_PNGS = $(patsubst %.pic,%.png,$(SEQ_DIA_PICS)) +CLEANFILES += $(SEQ_DIA_FILES) + +all-local: $(SEQ_DIA_PNGS) +dist-hook-local: + -cp $(srcdir)/$(SEQ_DIA_PICS) $(distdir)/ + +%.png: %.pic sequence.pic + set -o pipefail; $(PIC2PLOT) -Tps --font-name AvantGarde-Book $< | $(CONVERT) -density 112 - $@ ; rm .sequence.temp +endif diff --git a/doc/make-call.pic b/doc/make-call.pic new file mode 100644 index 0000000..6c94de9 --- /dev/null +++ b/doc/make-call.pic @@ -0,0 +1,136 @@ +.PS +copy "sequence.pic"; + +# Define the objects +object(Remote,"Remote GTalk"); move; +object(Connmgr,"Gabble");move; +placeholder_object(Channel,"StreamedMediaChannel");move; +placeholder_object(SessionHandler,"SessionHandler");move; +placeholder_object(StreamHandler,"StreamHandler"); +move;move; +placeholder_object(Client,"VoIP engine"); +move; +placeholder_object(Session); +move; +placeholder_object(Stream); +step(); + +# Message sequences +active(Remote); +step(); +active(Connmgr); +message(Remote,Connmgr,"jingle initiate") +message(Connmgr,Remote,"prelim accept") +create_message(Connmgr,Channel,"StreamedMediaChannel"); +active(Channel) +create_message(Channel,Client, "VoIPEngine"); +create_message(Channel,SessionHandler, "SessionHandler"); +active(Client); +message(Channel,Client,"NewMediaSessionHandler(member,StreamHandler)"); +create_message(Client,Session, "FarsightSession"); +inactive(Client); +step; + +active(SessionHandler) +create_message(SessionHandler,StreamHandler, "StreamHandler"); +active(Client); +message(SessionHandler,Client,"NewMediaStreamHandler(member,StreamHandler)"); +message(Client,Session,"create_stream()"); +create_message(Session,Stream,"FarsightStream"); +return_message(Session,Client); +inactive(SessionHandler); +inactive(Session); + +active(StreamHandler); +message(StreamHandler,Client,"set-remote-codecs(...)"); +active(Stream); +message(Client,Stream,"set_remote_codecs(...)"); +return_message(Stream,Client) +message(Client,Stream,"list_codecs()"); +return_message(Stream,Client); +message(Client,StreamHandler,"codecs(...)"); +return_message(StreamHandler,Client); + +message(Client,Stream,"prepare_transports()"); +return_message(Stream,Client); + +message(Remote,StreamHandler,"jingle candidate"); +message(StreamHandler,Client,"new-candidate(...)"); +message(Client,Stream,"new_remote_candidiate(...)"); +return_message(Stream,Client); + +message(Stream,Client,"new-native-candidate(id)"); +message(Client,Stream,"get_native_candidate(id)"); +return_message(Stream,Client); +message(Client,StreamHandler,"new_native_candidate(...)"); +return_message(StreamHandler,Client); +message(StreamHandler,Remote,"jingle candidiate"); +step; +message(Remote,StreamHandler,"jingle candidate"); +message(StreamHandler,Client,"new-candidate(...)"); +message(Client,Stream,"new_remote_candidiate(...)"); +return_message(Stream,Client); + +message(Stream,Client,"new-native-candidate(id)"); +message(Client,Stream,"get_native_candidate(id)"); +return_message(Stream,Client); +message(Client,StreamHandler,"new_native_candidate(...)"); +return_message(StreamHandler,Client); +message(StreamHandler,Remote,"jingle candidiate"); + +step; + +message(Stream,Client,"native-candidates-prepared"); +message(Client,StreamHandler,"native_candidates_prepared"); +return_message(StreamHandler,Client); + +message(Remote,StreamHandler,"ack candidates"); + +step; +message(Remote,Stream,"STUN") +message(Stream,Remote,"STUN") +step; + +message(Stream,Client,"new-active-candidate-pair"); +message(Client,Stream,"get_native_candidate"); +return_message(Stream,Client); +message(Client,StreamHandler,"new_active_candidate_pair(...)") +message(StreamHandler,Remote,"jingle accept"); +return_message(StreamHandler,Client); +step(); +message(Remote,StreamHandler,"ack accept"); + + +step; +message(Remote,Stream,"RTP+STUN") +message(Stream,Remote,"RTP+STUN") +step; + +message(Remote,StreamHandler,"terminate"); +message(StreamHandler,Client,"stop"); +message(Client,Stream,"state_playing(stopped)"); +return_message(Stream,Client); + +message(StreamHandler,Remote,"ack termianate"); + +inactive(Stream); +inactive(Session); +inactive(StreamHandler); +inactive(SessionHandler); +destroy_message(Client,Stream); +destroy_message(Client,Session); +destroy_message(StreamHandler,SessionHandler); +destroy_message(SessionHandler,Channel); +inactive(Client); + +# Complete the lifelines +step(); +complete(Remote); +complete(Connmgr); +complete(Channel); +complete(SessionHandler); +complete(StreamHandler); + +complete(Client); +complete(Session); +.PE diff --git a/doc/sequence.pic b/doc/sequence.pic new file mode 100644 index 0000000..bd8764b --- /dev/null +++ b/doc/sequence.pic @@ -0,0 +1,486 @@ +#/usr/bin/pic2plot -Tps +# +# Pic macros for drawing UML sequence diagrams +# +# (C) Copyright 2004-2005 Diomidis Spinellis. +# +# Permission to use, copy, and distribute this software and its +# documentation for any purpose and without fee is hereby granted, +# provided that the above copyright notice appear in all copies and that +# both that copyright notice and this permission notice appear in +# supporting documentation. +# +# THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED +# WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF +# MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. +# +# $Id: sequence.pic 1.10 2005/10/19 18:36:08 dds Exp $ +# + + +# Default parameters (can be redefined) + +# Spacing between messages +spacing = 0.25; +# Active box width +awid = .1; +# Box height +boxht = 0.3; +# Commend folding +corner_fold=awid +# Comment distance +define comment_default_move {up 0.25 right 0.25}; +# Comment height +comment_default_ht=0.5; +# Comment width +comment_default_wid=1; +#Default Object width +object_default_width = 0.75 + +# set 2 to the width of a string(text) +define getwidth { + print "getwidth(" $1 + sh X + for i in $1; do + foo=$i; bar=0; + if (( ${#i} > $bar)); then + bar=${#i}; + fi; + echo "$i $bar" >> test; + done; + echo " w= ($bar * 0.75) / 6;" > .sequence.temp + cat .sequence.temp >> log.sh + X + copy ".sequence.temp"; + if (w < object_default_width) then { + w = object_default_width; + } + print "width of " $1" is " w +} + +# Create a new object with custom width (name, text) +define object { + getwidth($2); + $1: box $2 wid w; move; + + # Could also underline text with \mk\ul\ul\ul...\rt + { + line from $1.w + (.1, -.07) to $1.e + (-.1, -.07); + } + move to $1.e; + move right; + # Active is the level of activations of the object + # 0 : inactive : draw thin line swimlane + # 1 : active : draw thick swimlane + # > 1: nested : draw nested swimlane + active_$1 = 0; + lifestart_$1 = $1.s.y; +} + +# Create a new external actor(name,text) +define actor { + getwidth($2) + $1: [ + XSEQC: circle rad w; + XSEQL: line from XSEQC.s down 2*w; + line from XSEQL.start - (.15,.02) to XSEQL.start + (.15,-.02); + XSEQL1: line from XSEQL.end left .02+w down .15; + XSEQL2: line from XSEQL.end right .0+w down .15; + line at XSEQC.n invis "" "" "" $2; + ] + move to $1.e; + move right; + active_$1 = 0; + lifestart_$1 = $1.s.y - .05; +} + +# Create a new placeholder object(name) +define placeholder_object { + $1: box invisible; + move; + move to $1.e; + move right; + active_$1 = 0; + lifestart_$1 = $1.s.y; +} + +define pobject { + placeholder_object($1); +} + +define extend_lifeline { + if (active_$1 > 0) then { + # draw the left edges of the boxes + move to ($1.x - awid/2, Here.y); + for level = 1 to active_$1 do { + line from (Here.x, lifestart_$1) to Here; + move right awid/2 + } + + # draw the right edge of the innermost box + move right awid/2; + line from (Here.x, lifestart_$1) to Here; + } else { + line from ($1.x, lifestart_$1) to ($1.x, Here.y) dashed; + } + lifestart_$1 = Here.y; +} + +# complete(name) +# Complete the lifeline of the object with the given name +define complete { + extend_lifeline($1) + if (active_$1) then { + # draw bottom of all active boxes + line right ((active_$1 + 1) * awid/2) from ($1.x - awid/2, Here.y); + } +} + +# Draw a message (from_object,to_object,label) +define message { + down; + move spacing; + getwidth($3); + # adjust object position so text fits + # add buffer of awid on either side for clarity + + # Adjust so that lines and arrows do not fall into the + # active box. Should be .5, but the arrow heads tend to + # overshoot. + if ($1.x <= $2.x) then { + off_from = awid * .6; + off_to = -awid * .6; + } else { + off_from = -awid * .6; + off_to = awid * .6; + } + # add half a box width for each level of nesting + if (active_$1 > 1) then { + off_from = off_from + (active_$1 - 1) * awid/2; + } + + # add half a box width for each level of nesting + if (active_$2 > 1) then { + off_to = off_to + (active_$2 - 1) * awid/2; + } + + if ($1.x == $2.x) then { + arrow from ($1.x + off_from, Here.y) right then down .25 then left $3 ljust " " " " " " ; + } else { + arrow from ($1.x + off_from, Here.y) to ($2.x + off_to, Here.y); + #draw the text seperatly to work around arrow bug + #add a small offset of awid for clarity + if ($1.x < $2.x) then { + sh X + rm .sequence.temp; + c=0 + for i in $3; do + ((c++)); + if ((c>1)); then + echo -n " \"$i\" below ljust " >> .sequence.temp; + else + echo -n " \"$i\" above ljust " >> .sequence.temp; + echo " at ($1.x + off_from + awid, Here.y)" >> .sequence.temp; + fi + done; + if ((c>1)); then + echo " at ($1.x + off_from + awid, Here.y - $((c>1?c-2:1))*8/72)" >> .sequence.temp; + fi + cat .sequence.temp >> log.sh + X + copy ".sequence.temp" + } else { + sh X + rm .sequence.temp; + c=0 + for i in $3; do + ((c++)); + if ((c>1)); then + echo -n " \"$i\" below rjust " >> .sequence.temp; + else + echo -n " \"$i\" above rjust " >> .sequence.temp; + echo " at ($1.x + off_from - awid, Here.y)" >> .sequence.temp; + fi + done; + if ((c>1)); then + echo " at ($1.x + off_from - awid, Here.y - $((c>1?c-2:1))*8/72)" >> .sequence.temp; + fi + cat .sequence.temp >> log.sh + X + copy ".sequence.temp" + } + } +} + +# Display a lifeline constraint(object,label) +define lifeline_constraint { + off_from = awid; + # add half a box width for each level of nesting + if (active_$1 > 1) then { + off_from = off_from + (active_$1 - 1) * awid/2; + } + + box at ($1.x + off_from, Here.y) invis $2 ljust " " ; +} + +define lconstraint { + lifeline_constraint($1,$2); +} + +# Display an object constraint(label) +# for the last object drawn +define object_constraint { + { box invis with .s at last box .nw $1 ljust; } +} + +define oconstraint { + object_constraint($1); +} + +# Draw a creation message(from_object,to_object,object_label) +define create_message { + down; + move spacing; + if ($1.x <= $2.x) then { + off_from = awid * .6; + off_to = -boxwid * .51; + } else { + off_from = -awid * .6; + off_to = boxwid * .51; + } + + # add half a box width for each level of nesting + if (active_$1 > 1) then { + off_from = off_from + (active_$1 - 1) * awid/2; + } + + #we shouldnt need to adjust object positioning for this message + #as it fits within the minimal defaults + # See comment in destroy_message + XSEQA: arrow from ($1.x + off_from, Here.y) to ($2.x + off_to, Here.y) " "; + #draw the text seperatly to work around arrow bug + #add a small offset of awid for clarity + if ($1.x < $2.x) then { + "«create»" above ljust at ($1.x + off_from + awid, Here.y) ; + } else { + "«create»" above rjust at ($1.x + off_from - awid, Here.y) ; + } + + getwidth($3); + if ($1.x <= $2.x) then { + { XSEQB: box $3 wid w with .w at XSEQA.end; } + } else { + { XSEQB: box $3 wid w with .e at XSEQA.end; } + } + { + line from XSEQB.w + (.1, -.07) to XSEQB.e + (-.1, -.07); + } + lifestart_$2 = XSEQB.s.y; + move (spacing + boxht) / 2; +} + +define cmessage { + create_message($1,$2,$3); +} + +# Draw an X for a given object +define drawx { + { + line from($1.x - awid, lifestart_$1 - awid) to ($1.x + awid, lifestart_$1 + awid); + line from($1.x - awid, lifestart_$1 + awid) to ($1.x + awid, lifestart_$1 - awid); + } +} + +# Draw a destroy message(from_object,to_object) +define destroy_message { + down; + move spacing; + # The troff code is \(Fo \(Fc + # The groff code is also \[Fo] \[Fc] + # The pic2plot code is \Fo \Fc + # See http://www.delorie.com/gnu/docs/plotutils/plotutils_71.html + # To stay compatible with all we have to hardcode the characters + message($1,$2,"«destroy»"); + complete($2); + drawx($2); +} + +define dmessage { + destroy_message($1,$2); +} + +# An object deletes itself: delete(object) +define delete { + complete($1); + lifestart_$1 = lifestart_$1 - awid; + drawx($1); +} + +# Draw a message return(from_object,to_object,label) +define return_message { + down; + move spacing; + # See comment in message + if ($1.x <= $2.x) then { + off_from = awid * .6; + off_to = -awid * .6; + } else { + off_from = -awid * .6; + off_to = awid * .6; + } + + # add half a box width for each level of nesting + if (active_$1 > 1) then { + off_from = off_from + (active_$1 - 1) * awid/2; + } + + # add half a box width for each level of nesting + if (active_$2 > 1) then { + off_to = off_to + (active_$2 - 1) * awid/2; + } + + arrow from ($1.x + off_from, Here.y) to ($2.x + off_to, Here.y) dashed $3 " "; +} + +define rmessage { + return_message($1,$2,$3); +} + +# Object becomes active +# Can be nested to show recursion +define active { + extend_lifeline($1); + # draw top of new active box + line right awid from ($1.x + (active_$1 - 1) * awid/2, Here.y); + active_$1 = active_$1 + 1; +} + +# Object becomes inactive +# Can be nested to show recursion +define inactive { + extend_lifeline($1); + active_$1 = active_$1 - 1; + # draw bottom of innermost active box + line right awid from ($1.x + (active_$1 - 1) * awid/2, Here.y); +} + +# Time step +# Useful at the beginning and the end +# to show object states +define step { + down; + move spacing; +} + +# Switch to asynchronous messages +define async { + arrowhead = 0; + arrowwid = arrowwid * 2; +} + +# Switch to synchronous messages +define sync { + arrowhead = 1; + arrowwid = arrowwid / 2; +} + +# same as lifeline_constraint, but Text and empty string are exchanged. +define lconstraint_below{ + off_from = awid; + # add half a box width for each level of nesting + if (active_$1 > 1) then { + off_from = off_from + (active_$1 - 1) * awid/2; + } + + box at ($1.x + off_from, Here.y) invis "" $2 ljust; +} + +# begin_frame(left_object,name,label_text); +define begin_frame { + # The lifeline will be cut here + extend_lifeline($1); + # draw the frame-label + $2: box $3 invis with .n at ($1.x, Here.y); + d = $2.e.y - $2.se.y; + line from $2.ne to $2.e then down d left d then to $2.sw; + # continue the lifeline below the frame-label + move to $2.s; + lifestart_$1 = Here.y; +} + +# end_frame(right_object,name); +define end_frame { + # dummy-box for the lower right corner: + box invis "" with .s at ($1.x, Here.y); + # draw the frame + frame_wid = last box.se.x - $2.nw.x + frame_ht = - last box.se.y + $2.nw.y + box with .nw at $2.nw wid frame_wid ht frame_ht; + # restore Here.y + move to last box.s; +} + +# comment(object,[name],[line_movement], [box_size] text); +define comment { + old_y = Here.y + # draw the first connecting line, at which's end the box wil be positioned + move to ($1.x, Here.y) + if "$3" == "" then { + line comment_default_move() dashed; + } else { + line $3 dashed; + } + + # draw the box, use comment_default_xx if no explicit + # size is given together with the text in parameter 4 + old_boxht=boxht; + old_boxwid=boxwid; + boxht=comment_default_ht; + boxwid=comment_default_wid; + if "$2" == "" then { + box invis $4; + } else { + $2: box invis $4; + } + boxht=old_boxht; + boxwid=old_boxwid; + + # draw the frame of the comment + line from last box.nw \ + to last box.ne - (corner_fold, 0) \ + then to last box.ne - (0, corner_fold) \ + then to last box.se \ + then to last box.sw \ + then to last box.nw ; + line from last box.ne - (corner_fold, 0) \ + to last box.ne - (corner_fold, corner_fold) \ + then to last box.ne - (0, corner_fold) ; + + # restore Here.y + move to ($1.x, old_y) +} + +# connect_to_comment(object,name); +define connect_to_comment { + old_y = Here.y + # start at the object + move to ($1.x, Here.y) + # find the best connection-point of the comment to use as line-end + if $1.x < $2.w.x then { + line to $2.w dashed; + } else { + if $1.x > $2.e.x then { + line to $2.e dashed; + } else { + if Here.y < $2.s.y then { + line to $2.s dashed; + } else { + if Here.y > $2.n.y then { + line to $2.n dashed; + } + } + } + } + # restore Here.y + move to ($1.x, old_y) +} diff --git a/m4/.git-darcs-dir b/m4/.git-darcs-dir new file mode 100644 index 0000000..e69de29 diff --git a/m4/seq-dias.m4 b/m4/seq-dias.m4 new file mode 100644 index 0000000..faf0f40 --- /dev/null +++ b/m4/seq-dias.m4 @@ -0,0 +1,33 @@ +AC_DEFUN([SEQ_DIAS], +[ +dnl check for tools for drawing sequence diagrams +AC_ARG_ENABLE(seq-dias, + AC_HELP_STRING([--enable-sequence-diagrams], + [use plotutils to draw sequence diagrams [default=yes]]),, + enable_seq_dias=yes) + +MAKE_SEQ_DIAS=no +if test x$enable_seq_dias = xyes; then + MAKE_SEQ_DIAS=yes + AC_PATH_PROG(PIC2PLOT, pic2plot, no) + AC_PATH_PROG(GS, gs, no) + AC_PATH_PROG(CONVERT, convert, no) + if test "$CONVERT" == "no"; then + AC_MSG_WARN([Imagemagick not found, drawing sequence diagrams will be disabled.]) + MAKE_SEQ_DIAS=no + fi + if test "$GS" == "no"; then + AC_MSG_WARN([Ghostscript not found, drawing sequence diagrams will be disabled.]) + MAKE_SEQ_DIAS=no + fi + if test "$PIC2PLOT" == "no"; then + AC_MSG_WARN([GNU plotutils not found, drawing sequence diagrams will be disabled.]) + MAKE_SEQ_DIAS=no + fi + AC_SUBST(PIC2PLOT) + AC_SUBST(CONVERT) + +fi +AC_SUBST(MAKE_SEQ_DIAS) +AM_CONDITIONAL(MAKE_SEQ_DIAS, test x$MAKE_SEQ_DIAS == xyes) +]) -- cgit v1.2.3