Developer Documentation

elementArea.cc
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40 \*===========================================================================*/
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
63 ElementArea::ElementArea (GraphicsScene *_scene) :
64 scene_ (_scene)
65 {
66 }
67
68 //------------------------------------------------------------------------------
69
71 ElementArea::~ElementArea ()
72 {
73 }
74
75 //------------------------------------------------------------------------------
76
78 QRectF ElementArea::boundingRect () const
79 {
80 return elementsBoundingRect_;
81 }
82
83 //------------------------------------------------------------------------------
84
86 void ElementArea::addElement (SceneElement *_element)
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 }
VSI::ElementArea::ElementArea
ElementArea(GraphicsScene *_scene)
Constructor.
Definition: elementArea.cc:63
VSI::ElementArea::boundingRect
QRectF boundingRect() const
Bounding rectangle.
Definition: elementArea.cc:78
VSI::ElementArea::addElement
void addElement(SceneElement *_element)
Add a child element.
Definition: elementArea.cc:86
VSI::ElementArea::~ElementArea
~ElementArea()
Destructor.
Definition: elementArea.cc:71
VSI::SceneElement
Definition: sceneElement.hh:73
VSI::ElementArea::removeElement
bool removeElement(SceneElement *_element, bool _force=false)
Remove an element, if its removeable or _force is set.
Definition: elementArea.cc:103
VSI
Definition: baseWidget.cc:72
VSI::SceneElement::element
Element * element() const
Context VSI::Element.
Definition: sceneElement.hh:88
VSI::GraphicsScene
Definition: graphicsScene.hh:80
VSI::Element::flags
unsigned int flags() const
Flags.
Definition: element.hh:109
VSI::ElementArea::elements
const QList< SceneElement * > & elements() const
All elements.
Definition: elementArea.cc:123