itsmattkc
1aa87cbda6
Large-scale code cleanup. Also adds a license to the top of all files that were missing it.
161 lines
3.8 KiB
C++
161 lines
3.8 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 NODEVIEWITEM_H
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#define NODEVIEWITEM_H
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#include <QFontMetrics>
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#include <QGraphicsRectItem>
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#include <QLinearGradient>
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#include <QUndoCommand>
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#include <QWidget>
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#include "node/node.h"
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#include "nodeviewedge.h"
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#include "nodeviewitemwidgetproxy.h"
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OLIVE_NAMESPACE_ENTER
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/**
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* @brief A visual widget representation of a Node object to be used in a NodeView
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*
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* This widget can be collapsed or expanded to show/hide the node's various parameters.
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*
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* To retrieve the NodeViewItem for a certain Node, use NodeView::NodeToUIObject().
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*/
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class NodeViewItem : public QGraphicsRectItem
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{
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public:
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NodeViewItem(QGraphicsItem* parent = nullptr);
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/**
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* @brief Set the Node to correspond to this widget
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*/
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void SetNode(Node* n);
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/**
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* @brief Get currently attached node
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*/
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Node* GetNode() const;
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/**
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* @brief Get expanded state
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*/
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bool IsExpanded() const;
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/**
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* @brief Set expanded state
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*/
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void SetExpanded(bool e);
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void ToggleExpanded();
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/**
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* @brief Returns GLOBAL point that edges should connect to for any NodeParam member of this object
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*/
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QPointF GetParamPoint(NodeParam* param) const;
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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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virtual void mousePressEvent(QGraphicsSceneMouseEvent *event) override;
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virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event) override;
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virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;
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virtual QVariant itemChange(QGraphicsItem::GraphicsItemChange change, const QVariant &value) override;
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private:
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/**
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* @brief Highlight an input (for instance when the user is dragging over it)
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*/
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void SetHighlightedIndex(int index);
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/**
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* @brief Returns local rect of a NodeInput in array node_inputs_[index]
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*/
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QRectF GetInputRect(int index) const;
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/**
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* @brief Returns local point that edges should connect to for a NodeInput in array node_inputs_[index]
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*/
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QPointF GetInputPoint(int index) const;
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/**
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* @brief Reference to attached Node
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*/
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Node* node_;
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/**
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* @brief Cached list of node inputs
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*/
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QList<NodeInput*> node_inputs_;
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/**
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* @brief A QWidget that can receive CSS properties that NodeViewItem can use
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*
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* \see NodeViewItemWidget
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*/
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NodeViewItemWidget css_proxy_;
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/**
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* @brief Rectangle of the Node's title bar (equal to rect() when collapsed)
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*/
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QRectF title_bar_rect_;
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/// Edge dragging variables
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NodeViewEdge* dragging_edge_;
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QPointF dragging_edge_start_;
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NodeParam* drag_src_param_;
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NodeParam* drag_dest_param_;
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NodeViewItem* drag_source_;
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NodeViewItem* cached_drop_item_;
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bool cached_drop_item_expanded_;
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/// Sizing variables to use when drawing
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int node_border_width_;
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/**
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* @brief Expanded state
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*/
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bool expanded_;
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/**
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* @brief Current click mode
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*
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* \see mousePressEvent()
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*/
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bool standard_click_;
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int highlighted_index_;
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/**
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* @brief QUndoCommand for creating and deleting edges by dragging
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*
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* \see mousePressEvent()
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* \see mouseReleaseEvent()
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*/
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QUndoCommand* node_edge_change_command_;
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};
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OLIVE_NAMESPACE_EXIT
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#endif // NODEVIEWITEM_H
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