Developer Documentation
toolBoxElement.cc
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41 
42 
43 
44 //== INCLUDES =================================================================
45 #include <QVBoxLayout>
46 #include <QLabel>
47 #include <QPainter>
48 #include <QMimeData>
49 #include <QDrag>
50 #include <QMouseEvent>
51 
52 #include "toolBoxElement.hh"
53 #include "parser/element.hh"
54 
55 #define BACKGROUND_RED 0x00
56 #define BACKGROUND_GREEN 0x00
57 #define BACKGROUND_BLUE 0x00
58 #define BACKGROUND_ALPHA 0xff
59 
60 //== NAMESPACES ===============================================================
61 namespace VSI {
62 
63 //=============================================================================
64 //
65 // CLASS ToolBoxElement - IMPLEMENTATION
66 //
67 //=============================================================================
68 
70 ToolBoxElement::ToolBoxElement (Element *_element, QWidget *_parent) :
71  QWidget (_parent),
72  element_ (_element)
73 {
74  QVBoxLayout *layout = new QVBoxLayout ();
75 
76  layout->setContentsMargins (2, 2, 2, 2);
77 
78  QLabel *label = new QLabel (element_->shortDescription (), this);
79 
80  label->setAlignment (Qt::AlignHCenter);
81  label->setWordWrap (true);
82 
83  QPalette p = label->palette ();
84  p.setBrush (QPalette::WindowText, Qt::white);
85  p.setBrush (QPalette::ButtonText, Qt::white);
86  label->setPalette (p);
87 
88  layout->addWidget (label);
89 
90  setToolTip (element_->longDescription ());
91 
92  setLayout (layout);
93 }
94 
95 //------------------------------------------------------------------------------
96 
99 {
100 }
101 
102 //------------------------------------------------------------------------------
103 
104 // Paint a rounded rect as background
105 void ToolBoxElement::paintEvent(QPaintEvent * /*_event*/)
106 {
107  QPainter p (this);
108  p.setRenderHint(QPainter::Antialiasing);
109 
110  p.setBrush(QBrush(QColor(BACKGROUND_RED,
111  BACKGROUND_GREEN,
112  BACKGROUND_BLUE,
113  BACKGROUND_ALPHA)));
114  p.setPen(QColor(BACKGROUND_RED + 0x30,
115  BACKGROUND_GREEN + 0x30,
116  BACKGROUND_BLUE + 0x30,
117  BACKGROUND_ALPHA));
118  p.drawRoundedRect(0, 0, width (), height (), 4, 4);
119 
120 }
121 
122 //------------------------------------------------------------------------------
123 
125 void ToolBoxElement::mousePressEvent(QMouseEvent *_event)
126 {
127  QMimeData *mimeData = new QMimeData;
128 
129  QPoint off = _event->pos() - QPoint (width () / 2, height () / 2);
130 
131  QString data = QString::number (off.x ()) + ";";
132  data += QString::number (off.y ()) + ";" + element_->name ();
133 
134  // internal mimetype
135  mimeData->setData ("application/x-openflipper.vsi",data.toLocal8Bit ());
136 
137  QDrag *drag = new QDrag(this);
138  drag->setMimeData(mimeData);
139 
140  QPixmap pixmap (size ());
141  pixmap.fill(Qt::transparent);
142 
143  render (&pixmap);
144 
145  drag->setPixmap(pixmap);
146  drag->setHotSpot(_event->pos());
147 
148  drag->exec ();
149 }
150 
151 //------------------------------------------------------------------------------
152 }
153 
ToolBoxElement(Element *_element, QWidget *_parent=NULL)
Constructor.
QString name() const
Element name.
Definition: element.hh:82
const QString & longDescription() const
Long description.
Definition: element.hh:91
~ToolBoxElement()
Destructor.
const QString & shortDescription() const
Short description.
Definition: element.hh:88
void mousePressEvent(QMouseEvent *_event)
Starts drag on mouse press.