itsmattkc
81c1922911
This makes the node system somewhat more high-level with the intent of making working with them far more flexible and stable. By making the architecture more abstracted, it becomes far less rigid which should allow us to do even more with it and make it much less crash prone.
144 lines
3.1 KiB
C++
144 lines
3.1 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2020 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 NODEEDGEITEM_H
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#define NODEEDGEITEM_H
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#include <QGraphicsPathItem>
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#include <QPalette>
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#include "nodeviewcommon.h"
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#include "node/node.h"
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namespace olive {
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class NodeViewItem;
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/**
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* @brief A graphical representation of a NodeEdge to be used in NodeView
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*
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* A fairly simple line widget use to visualize a connection between two node parameters (a NodeEdge).
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*/
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class NodeViewEdge : public QGraphicsPathItem
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{
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public:
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NodeViewEdge(const NodeOutput& output, const NodeInput& input,
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NodeViewItem* from_item, NodeViewItem* to_item,
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QGraphicsItem* parent = nullptr);
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NodeViewEdge(QGraphicsItem* parent = nullptr);
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const NodeOutput& output() const
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{
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return output_;
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}
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const NodeInput& input() const
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{
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return input_;
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}
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int element() const
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{
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return element_;
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}
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NodeViewItem* from_item() const
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{
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return from_item_;
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}
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NodeViewItem* to_item() const
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{
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return to_item_;
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}
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void Adjust();
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/**
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* @brief Set the connected state of this line
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*
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* When the edge is not connected, it visually depicts this by coloring the line grey. When an edge is connected or
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* a potential connection is valid, the line is colored white. This function sets whether the line should be grey
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* (false) or white (true).
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*
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* Using SetEdge() automatically sets this to true. Under most circumstances this should be left alone, and only
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* be set when an edge is being created/dragged.
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*/
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void SetConnected(bool c);
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/**
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* @brief Set highlighted state
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*
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* Changes color of edge.
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*/
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void SetHighlighted(bool e);
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/**
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* @brief Set points to create curve from
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*/
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void SetPoints(const QPointF& start, const QPointF& end, bool input_is_expanded);
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/**
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* @brief Sets the direction nodes are flowing
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*/
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void SetFlowDirection(NodeViewCommon::FlowDirection dir);
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/**
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* @brief Set whether edges should be drawn as curved or as straight lines
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*/
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void SetCurved(bool e);
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protected:
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virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = nullptr) override;
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private:
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void Init();
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NodeOutput output_;
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NodeInput input_;
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int element_;
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NodeViewItem* from_item_;
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NodeViewItem* to_item_;
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int edge_width_;
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bool connected_;
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bool highlighted_;
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NodeViewCommon::FlowDirection flow_dir_;
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bool curved_;
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QPolygonF arrow_;
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int arrow_size_;
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};
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}
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#endif // NODEEDGEITEM_H
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