25.05.2011 12:29, Robert Osfield wrote:
Hi Mikhail,
On Wed, May 25, 2011 at 9:10 AM, Mikhail I. Izmestev
<[email protected]> wrote:
For example you can take a look to RotateCylinderDragger, it create
Rotate3DCommand and pass it to dispatch method.
I'm afraid this doesn't explain what the problem is. Could you please
explain the mechanics of the problem rather than just throw out
various class names as I can't second guess what problems you have
identified.
Robert.
Ok, Constraint class have methods
virtual bool constrain(MotionCommand&) const
virtual bool constrain(TranslateInLineCommand& command) const
virtual bool constrain(TranslateInPlaneCommand& command) const
virtual bool constrain(Scale1DCommand& command) const
virtual bool constrain(Scale2DCommand& command) const
virtual bool constrain(ScaleUniformCommand& command) const
And DraggerCallback class have methods
virtual bool receive(const MotionCommand&)
virtual bool receive(const TranslateInLineCommand& command)
virtual bool receive(const TranslateInPlaneCommand& command)
virtual bool receive(const Scale1DCommand& command)
virtual bool receive(const Scale2DCommand& command)
virtual bool receive(const ScaleUniformCommand& command)
virtual bool receive(const Rotate3DCommand& command)
piece of code of RotateCylinderDragger::handle
<code>
...
osg::ref_ptr<Rotate3DCommand> cmd = new Rotate3DCommand();
cmd->setStage(MotionCommand::MOVE);
cmd->setLocalToWorldAndWorldToLocal(_startLocalToWorld,_startWorldToLocal);
cmd->setRotation(rotation);
// Dispatch command.
dispatch(*cmd);
...
</code>
As you can see there is used Rotate3DCommand, what we would expect from
DraggerCallback attached to this Dragger, call of
bool receive(const Rotate3DCommand& command)
or
bool receive(const MotionCommand&)
?
Now see dispatch method
void Dragger::dispatch(MotionCommand& command)
{
// apply any constraints
for(Constraints::iterator itr = _constraints.begin();
itr != _constraints.end();
++itr)
{
(*itr)->constrain(command);
}
// move self
getParentDragger()->receive(command);
for(DraggerCallbacks::iterator itr =
getParentDragger()->getDraggerCallbacks().begin();
itr != getParentDragger()->getDraggerCallbacks().end();
++itr)
{
(*itr)->receive(command);
}
}
and we see what would be called
bool receive(const MotionCommand&)
Mikhail.
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