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0001 /* This file is part of the TikZKit project. 0002 * 0003 * Copyright (C) 2013-2014 Dominik Haumann <dhaumann@kde.org> 0004 * 0005 * This library is free software; you can redistribute it and/or modify 0006 * it under the terms of the GNU Library General Public License as published 0007 * by the Free Software Foundation, either version 2 of the License, or 0008 * (at your option) any later version. 0009 * 0010 * This library is distributed in the hope that it will be useful, 0011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 0012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 0013 * GNU Library General Public License for more details. 0014 * 0015 * You should have received a copy of the GNU Library General Public License 0016 * along with this library; see the file COPYING.LIB. If not, see 0017 * <http://www.gnu.org/licenses/>. 0018 */ 0019 0020 #ifndef TIKZ_UI_NODE_ITEM_H 0021 #define TIKZ_UI_NODE_ITEM_H 0022 0023 #include "tikzui_export.h" 0024 0025 #include "TikzItem.h" 0026 0027 #include <tikz/core/Node.h> 0028 0029 class QPainter; 0030 0031 namespace tikz { 0032 0033 namespace core { 0034 class Style; 0035 } 0036 0037 namespace ui { 0038 0039 class DocumentPrivate; 0040 class NodeItemPrivate; 0041 0042 class TIKZKITUI_EXPORT NodeItem : public TikzItem 0043 { 0044 Q_OBJECT 0045 0046 public: 0047 /** 0048 * Constructor for @p node and parent @p parent. 0049 */ 0050 NodeItem(tikz::core::Node * node, QGraphicsItem * parent = nullptr); 0051 0052 /** 0053 * Destructor 0054 */ 0055 virtual ~NodeItem(); 0056 0057 /** 0058 * Returns the associated document, if available. 0059 */ 0060 DocumentPrivate * document() const; 0061 0062 /** 0063 * Reimplment to return a proper UserType + 2. 0064 */ 0065 int type() const override; 0066 0067 /** 0068 * Returns the pointer to the associated Node. 0069 */ 0070 tikz::core::Node * node(); 0071 0072 /** 0073 * Returns node().uid(); 0074 */ 0075 tikz::core::Uid uid() const; 0076 0077 /** 0078 * Returns the style of this node. 0079 * This is the same as node().style(). 0080 */ 0081 tikz::core::Style* style() const; 0082 0083 // 0084 // anchor methods 0085 // 0086 public: 0087 /** 0088 * Returns the list of supported anchors depending on the Node's current shape. 0089 */ 0090 QStringList supportedAnchors() const; 0091 0092 /** 0093 * Returns the @p anchor in scene coordinates. 0094 */ 0095 tikz::Pos anchor(const QString & anchor) const; 0096 0097 /** 0098 * Returns the contact point of this node's shape for the requested 0099 * @p anchor and angle @p rad in scene coordinates. 0100 * @param anchor the anchor 0101 * @param rad the angle in rad 0102 */ 0103 QPointF contactPoint(const QString & anchor, qreal rad) const; 0104 0105 /** 0106 * Returns the rect of this shape. 0107 * Node properties such as scaling and minimum size is included. 0108 * However, the style()->outerSep() is NOt included. 0109 */ 0110 QRectF shapeRect() const; 0111 0112 // 0113 // reimplemented from QGraphicsItem 0114 // 0115 public: 0116 /** 0117 * Paint this item. 0118 */ 0119 void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = nullptr) override; 0120 0121 /** 0122 * Returns the bounding rect of this item. 0123 */ 0124 QRectF boundingRect() const override; 0125 0126 /** 0127 * Returns an exact shape as painter path 0128 */ 0129 QPainterPath shape() const override; 0130 0131 /** 0132 * Returns @p true, if @p point is contained in this node. 0133 */ 0134 // bool contains(const QPointF &point) const; 0135 0136 Q_SIGNALS: 0137 /** 0138 * This signal is emitted whenever this node changes, e.g. its style. 0139 */ 0140 void changed(); 0141 0142 // 0143 // protected overrides 0144 // 0145 protected: 0146 QVariant itemChange(GraphicsItemChange change, const QVariant & value) override; 0147 0148 protected Q_SLOTS: 0149 void slotSetPos(const QPointF& pos); 0150 void styleChanged(); 0151 0152 // 0153 // internal 0154 // 0155 private: 0156 /** 0157 * Private default constructor, not implemented 0158 */ 0159 NodeItem(); 0160 0161 private: 0162 NodeItemPrivate * const d; 0163 }; 0164 0165 } 0166 } 0167 0168 #endif // TIKZ_UI_NODE_ITEM_H 0169 0170 // kate: indent-width 4; replace-tabs on;