studio/src/plugins/gui_editor/expression_node.h

   1 // Ryzom Core Studio - GUI Editor Plugin
   2 //
   3 // Copyright (C) 2010-2014  Laszlo KIS-ADAM (dfighter) <dfighter1985@gmail.com>
   4 //
   5 // This program is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU Affero General Public License as
   7 // published by the Free Software Foundation, either version 3 of the
   8 // License, or (at your option) any later version.
   9 //
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU Affero General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU Affero General Public License
  16 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18
  19 #ifndef EXPRESSION_NODE
  20 #define EXPRESSION_NODE
  21
  22 #include <QGraphicsItem>
  23 #include <QList>
  24 #include "expr_slot_info.h"
  25
  26 class ExpressionLink;
  27 class NodeSlot;
  28
  29 class ExpressionNode : public QGraphicsItem
  30 {
  31 public:
  32         ExpressionNode( const QString &name, int slotCount = 3, QGraphicsItem *parent = NULL );
  33         ~ExpressionNode();
  34
  35         QRectF boundingRect() const;
  36         void paint( QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget );
  37
  38         void setLink( ExpressionLink *link, int slot );
  39         ExpressionLink* link( int slot ) const;
  40
  41         QPointF slotPos( int slot ) const;
  42
  43         int slotCount() const{ return m_slots.count(); }
  44         void changeSlotCount( int count );
  45         void clearSlots();
  46
  47         bool slotEmpty( int slot ) const;
  48
  49         void getSlots( QList< SlotInfo > &l );
  50
  51         void clearLinks();
  52
  53         QString name() const{ return m_name; }
  54
  55         void setSlotNames( const QList< QString > &l );
  56
  57         void setVariable( bool b ){ m_variable = b; }
  58         bool variable() const{ return m_variable; }
  59
  60         void setValue( const QString &value );
  61         QString getValue() const{ return m_value; }
  62
  63         bool isValue() const{ return m_isValue; }
  64         void setIsValue( bool b ){ m_isValue = b; }
  65         void setRoot( bool b );
  66
  67         QString build() const;
  68
  69 protected:
  70         QVariant itemChange( GraphicsItemChange change, const QVariant &value );
  71
  72 private:
  73         void onNodeMove();
  74         void createSlots( int count = 3 );
  75         void paintSlots( QPainter *painter );
  76
  77         qreal m_w; // node width
  78         qreal m_h; // node height
  79         qreal m_hh; // header height
  80
  81         QList< NodeSlot* > m_slots;
  82         QList< ExpressionLink* > m_links;
  83
  84         QString m_name;
  85
  86         bool m_variable;
  87
  88         QString m_value;
  89         bool m_isValue;
  90         bool m_isRoot;
  91 };
  92
  93 #endif
  94