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QtGLViewerLayout.cc
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48 \*===========================================================================*/
49
50
51
52
53 //=============================================================================
54 //
55 // CLASS QtGLViewerLayout - IMPLEMENTATION
56 //
57 //=============================================================================
58
59 //== INCLUDES =================================================================
60
61 #include "QtGLViewerLayout.hh"
62
63 //== NAMESPACES ===============================================================
64
65
66 //== CLASS IMPLEMENTATION======================================================
67
68 QtGLViewerLayout::QtGLViewerLayout (QGraphicsLayoutItem * _parent) :
69 QGraphicsLayout (_parent),
70 wheelX_ (0),
71 wheelY_ (0),
72 wheelZ_ (0)
73 {
74 }
75
76 //-----------------------------------------------------------------------------
77
78 void QtGLViewerLayout::addWheelX (QGraphicsWidget *_item)
79 {
80 if (wheelX_)
81 items_.remove(items_.indexOf(wheelX_));
82 wheelX_ = _item;
83 items_.append(_item);
84 }
85
86 //-----------------------------------------------------------------------------
87
88 void QtGLViewerLayout::addWheelY (QGraphicsWidget *_item)
89 {
90 if (wheelY_)
91 items_.remove(items_.indexOf(wheelY_));
92 wheelY_ = _item;
93 items_.append(_item);
94 }
95
96 //-----------------------------------------------------------------------------
97
98 void QtGLViewerLayout::addWheelZ (QGraphicsWidget *_item)
99 {
100 if (wheelZ_)
101 items_.remove(items_.indexOf(wheelZ_));
102 wheelZ_ = _item;
103 items_.append(_item);
104 }
105
106 //-----------------------------------------------------------------------------
107
108 int QtGLViewerLayout::count() const
109 {
110 return items_.size();
111 }
112
113 //-----------------------------------------------------------------------------
114
115 QGraphicsLayoutItem * QtGLViewerLayout::itemAt(int _i) const
116 {
117 if (_i < 0 || _i >= items_.size())
118 return 0;
119
120 return items_[_i];
121 }
122
123 //-----------------------------------------------------------------------------
124
125 void QtGLViewerLayout::removeAt (int _index)
126 {
127 if (_index < 0 || _index >= items_.size())
128 return;
129
130 if (items_[_index] == wheelX_)
131 wheelX_ = 0;
132 if (items_[_index] == wheelY_)
133 wheelY_ = 0;
134 if (items_[_index] == wheelZ_)
135 wheelZ_ = 0;
136
137 items_.remove(_index);
138 }
139
140 //-----------------------------------------------------------------------------
141
142 QSizeF QtGLViewerLayout::sizeHint(Qt::SizeHint /*_which*/, const QSizeF & _constraint) const
143 {
144 return _constraint;
145 }
146
147 //-----------------------------------------------------------------------------
148
149 void QtGLViewerLayout::setGeometry(const QRectF & rect)
150 {
151 QGraphicsLayoutItem::setGeometry (rect);
152 reLayout ();
153 }
154
155 //-----------------------------------------------------------------------------
156
157 void QtGLViewerLayout::reLayout ()
158 {
159 if (!wheelX_ || !wheelY_ || !wheelZ_)
160 return;
161
162 QRectF r = contentsRect ();
163 float scale = qMin(300.0, qMin(r.width(), r.height())) / 300.0;
164
165 foreach (QGraphicsWidget *item, items_)
166 {
167 if (item->size() != item->preferredSize ())
168 item->resize (item->preferredSize ());
169 item->resetTransform();
170 item->setScale (scale);
171 }
172
173 wheelX_->setPos (r.left(),
174 r.bottom() - ((wheelY_->size().height() + wheelX_->size().height()) * scale));
175 wheelY_->setPos (r.left() + (wheelX_->size().width() * scale),
176 r.bottom() - (wheelY_->size().height() * scale));
177 wheelZ_->setPos (r.right() - (wheelZ_->size().width() * scale),
178 r.bottom() - ((wheelY_->size().height() + wheelZ_->size().height()) * scale));
179 }
180
181
182 //=============================================================================
183 //=============================================================================
QtGLViewerLayout::addWheelX
void addWheelX(QGraphicsWidget *_item)
Add Wheel Widget to Layout.
Definition: QtGLViewerLayout.cc:78
QtGLViewerLayout::setGeometry
virtual void setGeometry(const QRectF &rect)
Tracks geometry changes.
Definition: QtGLViewerLayout.cc:149
QtGLViewerLayout::reLayout
void reLayout()
Recalculate layout.
Definition: QtGLViewerLayout.cc:157
QtGLViewerLayout::count
virtual int count() const
Pure virtual functions that have to be implemented.
Definition: QtGLViewerLayout.cc:108
QtGLViewerLayout::wheelX_
QGraphicsWidget * wheelX_
Items.
Definition: QtGLViewerLayout.hh:100