bool FloatNode::applyDiff(const DefinitionDiff *diff, bool backward) {
if (!DefinitionNode::applyDiff(diff, backward)) {
return false;
}
assert(diff->getTypeName() == "float");
auto float_diff = dynamic_cast<const FloatDiff *>(diff);
if (float_diff) {
double previous = backward ? float_diff->getNewValue() : float_diff->getOldValue();
double next = backward ? float_diff->getOldValue() : float_diff->getNewValue();
if (value == previous) {
value = next;
return true;
} else {
Logs::error("Definition") << "Can't apply float diff " << previous << " => " << next << " to " << getName()
<< endl;
return false;
}
} else {
Logs::error("Could not cast DefinitionDiff to IntDiff");
return false;
}
}
void DefinitionWatcher::nodeChanged(const DefinitionNode *node, const DefinitionDiff *diff, const DefinitionNode *) {
string type_name = node->getTypeName();
if (type_name == "int") {
auto int_diff = static_cast<const IntDiff *>(diff);
intNodeChanged(node->getPath(), int_diff->getNewValue(), int_diff->getOldValue());
} else if (type_name == "float") {
auto float_diff = static_cast<const FloatDiff *>(diff);
floatNodeChanged(node->getPath(), float_diff->getNewValue(), float_diff->getOldValue());
}
}
//------------------------------------------------------------------------
void CVuMeter::draw (CDrawContext *_pContext)
{
if (!getOnBitmap ())
return;
CRect _rectOn (rectOn);
CRect _rectOff (rectOff);
CPoint pointOn;
CPoint pointOff;
CDrawContext *pContext = _pContext;
bounceValue ();
float newValue = getOldValue () - decreaseValue;
if (newValue < value)
newValue = value;
setOldValue (newValue);
newValue = (newValue - getMin ()) / getRange (); // normalize
if (style & kHorizontal)
{
CCoord tmp = (CCoord)(((int32_t)(nbLed * newValue + 0.5f) / (float)nbLed) * getOnBitmap ()->getWidth ());
pointOff (tmp, 0);
_rectOff.left += tmp;
_rectOn.right = tmp + rectOn.left;
}
else
{
CCoord tmp = (CCoord)(((int32_t)(nbLed * (1.f - newValue) + 0.5f) / (float)nbLed) * getOnBitmap ()->getHeight ());
pointOn (0, tmp);
_rectOff.bottom = tmp + rectOff.top;
_rectOn.top += tmp;
}
if (getOffBitmap ())
{
getOffBitmap ()->draw (pContext, _rectOff, pointOff);
}
getOnBitmap ()->draw (pContext, _rectOn, pointOn);
setDirty (false);
}
//------------------------------------------------------------------------
void CVuMeter::onIdle ()
{
if (getOldValue () != value)
invalid ();
}
