/* ***** BEGIN LICENSE BLOCK *****

* This file is part of Natron <http://www.natron.fr/>,

* Copyright (C) 2015 INRIA and Alexandre Gauthier-Foichat

*

* Natron is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation; either version 2 of the License, or

* (at your option) any later version.

*

* Natron is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with Natron. If not, see <http://www.gnu.org/licenses/gpl-2.0.html>

* ***** END LICENSE BLOCK ***** */

// ***** BEGIN PYTHON BLOCK *****

// from <https://docs.python.org/3/c-api/intro.html#include-files>:

// "Since Python may define some pre-processor definitions which affect the standard headers on some systems, you must include Python.h before any standard headers are included."

#include <Python.h>

// ***** END PYTHON BLOCK *****

#include "GroupInput.h"

#include "Engine/KnobTypes.h"

#include "Engine/Node.h"

#include "Engine/NodeGroup.h" // kNatronGroupInputIsOptionalParamName, kNatronGroupInputIsMaskParamName

std::string

GroupInput::getDescription() const

{

return "This node can only be used within a Group. It adds an input arrow to the group.";

}

void

GroupInput::initializeKnobs()

{

boost::shared_ptr<Page_Knob> page = Natron::createKnob<Page_Knob>(this, "Controls");

page->setName("controls");

boost::shared_ptr<Bool_Knob> optKnob = Natron::createKnob<Bool_Knob>(this, "Optional");

optKnob->setHintToolTip("When checked, this input of the group will be optional, i.e it will not be required that it is connected "

"for the render to work. ");

optKnob->setAnimationEnabled(false);

optKnob->setName(kNatronGroupInputIsOptionalParamName);

page->addKnob(optKnob);

optional = optKnob;

boost::shared_ptr<Bool_Knob> maskKnob = Natron::createKnob<Bool_Knob>(this, "Mask");

maskKnob->setHintToolTip("When checked, this input of the group will be considered as a mask. A mask is always optional.");

maskKnob->setAnimationEnabled(false);

maskKnob->setName(kNatronGroupInputIsMaskParamName);

page->addKnob(maskKnob);

mask = maskKnob;

}

void

GroupInput::knobChanged(KnobI* k,

Natron::ValueChangedReasonEnum /*reason*/,

int /*view*/,

SequenceTime /*time*/,

bool /*originatedFromMainThread*/)

{

if (k == optional.lock().get()) {

boost::shared_ptr<NodeCollection> group = getNode()->getGroup();

group->notifyInputOptionalStateChanged(getNode());

} else if (k == mask.lock().get()) {

bool isMask = mask.lock()->getValue();

if (isMask) {

optional.lock()->setValue(true, 0);

} else {

optional.lock()->setValue(false, 0);

}

boost::shared_ptr<NodeCollection> group = getNode()->getGroup();

group->notifyInputMaskStateChanged(getNode());

}

}