itsmattkc
1aa87cbda6
Large-scale code cleanup. Also adds a license to the top of all files that were missing it.
102 lines
2.9 KiB
C++
102 lines
2.9 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 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 "node/edge.h"
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OLIVE_NAMESPACE_ENTER
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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(QGraphicsItem* parent = nullptr);
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/**
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* @brief Set the edge that this item corresponds to
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*
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* This can be changed at any time (but under most circumstances won't be). Calling this will automatically call
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* Adjust() to move this item into the correct position.
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*/
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void SetEdge(NodeEdgePtr edge);
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NodeEdgePtr edge();
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/**
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* @brief Moves/updates this line to visually connect between the two corresponding NodeViewItems
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*
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* Using the attached edge (see SetEdge()), this function retrieves the NodeViewItems representing the two nodes
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* that this edge connects. It uses their positions to determine where the line should visually connect and sets
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* it accordingly.
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*
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* This should be set any time the NodeEdge changes (see SetEdge()), and any time the nodes move in the NodeGraph
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* (see NodeView::ItemsChanged()). This will keep the nodes visually connected at all times.
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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);
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private:
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void UpdatePen();
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NodeEdgePtr edge_;
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int edge_width_;
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QPalette::ColorGroup color_group_;
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QPalette::ColorRole color_role_;
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};
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OLIVE_NAMESPACE_EXIT
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#endif // NODEEDGEITEM_H
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