void ossimBandSelector::setOutputBandList( const vector<ossim_uint32>& outputBandList )
{
if (outputBandList.size())
{
theOutputBandList = outputBandList; // Assign the new list.
bool setBands = false;
ossimRefPtr<ossimImageHandler> ih = getBandSelectableImageHandler();
if ( ih.valid() )
{
// Our input is a single image chain that can do band selection.
if ( ih->setOutputBandList( outputBandList ) )
{
thePassThroughFlag = true;
setBands = true;
theTile = 0; // Don't need.
}
}
if ( setBands == false )
{
if ( theTile.valid() && ( theTile->getNumberOfBands() != outputBandList.size() ) )
{
theTile = 0; // Force an allocate call next getTile.
}
theWithinRangeFlag = ossimBandSelectorWithinRangeFlagState_NOT_SET;
checkPassThrough();
//theOrderedCorrectlyFlag = isOrderedCorrectly();
}
}
}
void ossimBandSelector::initialize()
{
// Base class will recapture "theInputConnection".
ossimImageSourceFilter::initialize();
theWithinRangeFlag = ossimBandSelectorWithinRangeFlagState_NOT_SET;
if(theInputConnection)
{
if ( !theOutputBandList.size() )
{
// First time through set the output band list to input.
theInputConnection->getOutputBandList(theOutputBandList);
}
// See if we have a single image chain with band selectable image handler.
ossimRefPtr<ossimImageHandler> ih = getBandSelectableImageHandler();
if ( ih.valid() )
{
if ( theOutputBandList.size() )
{
ih->setOutputBandList( theOutputBandList );
}
thePassThroughFlag = true;
}
else
{
checkPassThrough();
}
if ( isSourceEnabled() )
{
// theOrderedCorrectlyFlag = isOrderedCorrectly();
if ( theTile.valid() )
{
//---
// Check for:
// - ordered correctly
// - band change
// - scalar change
//---
if( ( theTile->getNumberOfBands() != theOutputBandList.size() ) ||
( theTile->getScalarType() !=
theInputConnection->getOutputScalarType() ) )
{
theTile = 0; // Don't need it.
}
}
}
}
else // No input connection.
{
thePassThroughFlag = true;
}
if ( !isSourceEnabled() )
{
theTile = 0;
}
}
bool checkThisPassThrough() {
return checkPassThrough(node);
}
bool checkParentPassThrough() {
return node->parent() && checkPassThrough(node->parent());
}