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This document describes the expected behaviour of SCC (the Qt State Chart Compiler) in regards to SCXML tags and features.
SCXML
Ignored: version, profile, exmode
STATE
Ignored: src
TRANSITION
Ignored: anchor
Additional: Qt:animation, a location expression that points to a QPropertyAnimation* object
Notes: An event in a transition translates to a Qt signal in the state machine object. "*" would occur on any event. Prefix matching is not supported, but * and done events are supported.
Conditions are C++ boolean expressions.
PARALLEL
Ignored: src
HISTORY:
Notes: The history's default transition cannot have executable content.
LOG:
Notes: the level of the log translates to QtMsgType. expr is a c++ expression.
SEND:
Partially supported: target (only "_internal")
Ignored attributes: type, idlocation, hints
Notes: The target attribute can be either empty for a regular event, "_internal" for an internal-queue event, or a location expression to emit a signal in an object.
CANCEL:
Notes: ID is a string literal, not an expression
DATA:
Ignored attributes: src
Additional: Qt:type, to define a C++ type for this data element
Notes: A data element is converted to a Qt property of the state-machine object. expr/text are C++ expressions
ASSIGN:
Notes: If dataid is present rather than location, the generated code would use the Qt property system to assign the value. expr is a c++ expression.
PARAM
Notes: either name, expr or inline-text can appear, as the parameters are translated to a QVariantList.
SCRIPT
Notes: raw C++ code
Fully supported:
INITIAL, FINAL, ONENTRY, ONEXIT, IF, ELSEIF, ELSE, LOG, CANCEL, DATAMODEL
Unsupported:
INVOKE, CONTENT, DONEDATA, FINALIZE, ANCHOR, VALIDATE
Qt:property
object
property
value
Qt:cpp
text()
system variables
_event
_data
_name
INVOKE
CONTENT
VALIDATE
DONEDATA
script
Qt:cpp
cond
(variables)
param
log
if/elseif/else
assign
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