Developer Documentation
elementArea.cc
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41 
42 
43 
44 //== INCLUDES =================================================================
45 #include <QGraphicsItem>
46 #include <QGraphicsSceneMouseEvent>
47 
48 #include "../parser/element.hh"
49 #include "elementArea.hh"
50 #include "graphicsScene.hh"
51 #include "sceneElement.hh"
52 
53 //== NAMESPACES ===============================================================
54 namespace VSI {
55 
56 //=============================================================================
57 //
58 // CLASS VSI::ElementArea - IMPLEMENTATION
59 //
60 //=============================================================================
61 
64  scene_ (_scene)
65 {
66 }
67 
68 //------------------------------------------------------------------------------
69 
72 {
73 }
74 
75 //------------------------------------------------------------------------------
76 
79 {
80  return elementsBoundingRect_;
81 }
82 
83 //------------------------------------------------------------------------------
84 
87 {
88  foreach (QGraphicsItem *e, elements_)
89  e->setSelected (false);
90 
91  elements_.append (_element);
92  _element->setParentItem (this);
93  prepareGeometryChange ();
94  elementsBoundingRect_ = _element->boundingRect () | _element->childrenBoundingRect ();
95 
96  _element->setSelected (true);
97  update ();
98 }
99 
100 //------------------------------------------------------------------------------
101 
103 bool ElementArea::removeElement (SceneElement *_element, bool _force)
104 {
105 
106  if (!_force && _element->element ()->flags () & ELEMENT_FLAG_NO_DELETE)
107  return false;
108  if (elements_.contains (_element))
109  {
110  elements_.removeAll (_element);
111  _element->setParentItem (0);
112  prepareGeometryChange();
113  elementsBoundingRect_ = childrenBoundingRect();
114  return true;
115  }
116  else
117  return false;
118 }
119 
120 //------------------------------------------------------------------------------
121 
123 const QList<SceneElement *>& ElementArea::elements () const
124 {
125  return elements_;
126 }
127 
128 //------------------------------------------------------------------------------
129 }
ElementArea(GraphicsScene *_scene)
Constructor.
Definition: elementArea.cc:63
QRectF boundingRect() const
Bounding rectangle.
Definition: elementArea.cc:78
void addElement(SceneElement *_element)
Add a child element.
Definition: elementArea.cc:86
~ElementArea()
Destructor.
Definition: elementArea.cc:71
bool removeElement(SceneElement *_element, bool _force=false)
Remove an element, if its removeable or _force is set.
Definition: elementArea.cc:103
Element * element() const
Context VSI::Element.
Definition: sceneElement.hh:88
unsigned int flags() const
Flags.
Definition: element.hh:109
const QList< SceneElement * > & elements() const
All elements.
Definition: elementArea.cc:123