using frames to encapsulate building blocks, e.g., like macros or functions in
a programming language. Since measurements only know about the frame containing
a vector but not the frames containing that frame, invocations of this frame
from different places can only be distinguished within the min/next/max scheme.
(See the example in README.)
To eliminate this limitation, one needs a way to tell fped to consider a point
only if it has been instantiated through a certain path, e.g., by requiring
some other frames to be visited in its instantiation. This increases the number
of distinct points available for measurements.
The mechanism chosen is to qualify a measurement point with frames that lead to
it. This list of outer frames does not have to include all frames. Without
qualifying, the old behaviour results.
Note that this doesn't cover all possible ways in which a point can appear in
different roles. Multiple frame references can also result from repeating the
same frame reference in the same parent frame. The current qualification
mechanism does not allow such paths to be distinguished. However, one can
always introduce intermediate frames for this purpose.
Furthermore, repetitions create multiple instances of a point, although in what
should be considered the same role.
- fpd.l: make scanner support free-format a little better by switching back to
keyword mode after frame braces. This way, one can write a simple frame in a
single line, which is useful for regression tests.
- fpd.l, fpd.y, README, test/dbg_meas: added %meas directive to print the
result of a measurement
- fpd.y, README: measurements can now be labeled. Note that, due to limitations
of the grammar, the first measurement cannot be labeled.
- error.h, error.c (yywarn): new function for non-fatal diagnostics that always
get reported to standard error
- bitset.h, bitset.c: functions to manipulate variable-size bit sets
- meas.h, fpd.y, README, test/meas_qual: added the means to specify qualifiers
for points used in measurements
- dump.c (print_meas_base, print_meas): dump qualifiers
- delete.c (delete_references, test/del_frame): delete measurements that
reference a frame being deleted in their qualifiers
- obj.h, obj.c (enumerate_frames, instantiate): enumerate all frames so that we
have an index into the bit vector of visited frames
- meas.h, meas.c (reset_samples, meas_post), obj.c (generate_vecs,
generate_frame, instantiate): record the set of frames visited for each
sample
- meas.c (meas_post): only treat two instances of a point as equivalent if the
set of frames visited of one of them is a superset of set of the other. In
this case, keep the union of the two sets.
- meas.h, meas.c (meas_find_min, meas_find_next, meas_find_max),
test/meas_qual: instantiate_meas_pkg only select points for which all frames
in the qualification have been visited
- gui_meas.c (is_min, is_next, is_max, is_a_next): updated for above change
- inst.h, inst.c (curr_frame, propagate_bbox, add_inst, inst_begin_frame,
inst_end_frame, inst_start): renamed curr_frame to frame_instantiating to
avoid clash with curr_frame in fpd.y
- inst.h, inst.c (find_meas_hint): make global
- test/structure, test/del_vec, test/del_frame: fped now warns if a measurement
is in an unlinked frame. Changed regressions tests to avoid this warning.
- test/Common: new function expect_grep to compare only part of the output
git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5967 99fdad57-331a-0410-800a-d7fa5415bdb3
- removed root_frame. "frames" now takes its place.
- removed frame->prev. In those few cases where we need the previous frame (for
deletion and dumping), we walk the list or recurse.
- the list of frames is now in GUI order, not file order.
- when reading the .fpd file, put the root frame first and leave it there.
- instead of walking the frames list and excluding the root frame by testing
frame->name, just start at frames->next
- likewise, instead of testing !frame->name just use frame == frames
git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5948 99fdad57-331a-0410-800a-d7fa5415bdb3
instantiation and create a partially formed instance. During measurement
instantiation, we complete that instance.
- leak.supp: finally figured out how to write a valgrind suppression file
- fped.c: we don't need the FPED_NO_GUI kludge anymore
- fped.c: moved gui_cleanup_style to gui_main
- dereference icons (seems that this doesn't deallocate everything, though)
git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5514 99fdad57-331a-0410-800a-d7fa5415bdb3
- we freed a package's samples list after recalculating the number of samples,
which caused a crash after adding a new vector. We now record the original
list length in the package structure.
- when dragging a circle, offer the end point first, so that it becomes an arc
git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5480 99fdad57-331a-0410-800a-d7fa5415bdb3
- README: added build prerequisites
- "part name" is now more correctly called "package name"
- changed keyword "part" to "package"
- removed inst_debug and struct inst_ops.debug functions - never really used
them anyway
- we can now generate multiple packages from a single file
git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5478 99fdad57-331a-0410-800a-d7fa5415bdb3
- instantiate_meas if a mesurements has no samples, do the next one, don't stop
completely
- when instantiation fails, the corresponding vector, object, or loop is now
marked red in the variables/items list.
git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5432 99fdad57-331a-0410-800a-d7fa5415bdb3
to stdout if not
- there's no reason anymore to disallow editing the offset in new-style
measurements
- struct inst_ops is no longer opaque, so we can avoid adding even more silly
little access functions and open-code straightforward callbacks
- (re)stuctured hover/click/drag logic in gui_tool.c
- added optional debugging output to gui_canvas.c
- don't let a vector's base be dragged onto the vector's own end or onto one
of its children
- measurements can now be properly changed by dragging
git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5414 99fdad57-331a-0410-800a-d7fa5415bdb3
get it back when we lose it
- improved heuristics for measx/measy: instead of looking for "next" or "max"
on secondary coordinate, pick the one that's closest. I.e., if there's a
chance to just connect with x' = 0 or y' = 0, do it.
- mouse wheel on loop value now selects next/previous value
- corrected proximity calculation for measurements
- vec/frame/meas toggle now deselects, so that we don't accidently leave a
supposedly hidden item selected
git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5413 99fdad57-331a-0410-800a-d7fa5415bdb3
- removed support for old-style measurements
- new-style measurements are now embedded in "struct obj", so we can dump and
delete them
- "measxy" is now called "meas"
- updated examples to use new-style measurements
git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5412 99fdad57-331a-0410-800a-d7fa5415bdb3
- moved measurement operations from gui_tools.c to new file gui_meas.c
- added support for creating new-style measurements through the GUI
- the offset is optional in new-style expressions
git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5407 99fdad57-331a-0410-800a-d7fa5415bdb3
- increased default window size for make room for new icons
- switch the canvas to dark blue when instantiation fails
- modularized point lookup logic of instantiate_meas
- added highlight mode (on-going)
git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5404 99fdad57-331a-0410-800a-d7fa5415bdb3
