itsmattkc
4d96ac9e39
Nodes were previously written to be "strongly typed" in that a parameter's "type" enforced whether it could be connected to another. All code related to that has now been removed since not only is it hard to maintain and likely unnecessary, it's possible the nodes will work differently later on anyway.
70 lines
2.1 KiB
C++
70 lines
2.1 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2019 Olive Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#ifndef NODEOUTPUT_H
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#define NODEOUTPUT_H
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#include "param.h"
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/**
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* @brief A node parameter designed to serve data to the input of another node
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*/
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class NodeOutput : public NodeParam
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{
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public:
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/**
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* @brief NodeOutput Constructor
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*/
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NodeOutput(const QString& id);
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/**
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* @brief Returns kOutput
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*/
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virtual Type type() override;
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/**
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* @brief Get the value of this output at a given tie
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*
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* This function is intended to primarily be called by any connected NodeInputs.
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*
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* The first thing this function does is request the parent Node object to Process() at this time. The Node should
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* then perform whatever actions necessary (usually taking data from inputs and creating output data) to set the
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* correct value that this output should have at this time (the Node should use set_value() for this). This function
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* will then return the value that was set after Process() returned.
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*
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* In many cases for efficiency, the Node can also ignore this request if it knows the output data will not change
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* (i.e. if the time has not changed from the last Process()).
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*/
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virtual QVariant get_value(const rational &in, const rational &out);
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void push_value(const QVariant& v, const rational& in, const rational &out);
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NodeInput* linked_input();
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void set_linked_input(NodeInput* link);
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private:
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QMutex mutex_;
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NodeInput* linked_input_;
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};
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#endif // NODEOUTPUT_H
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