moveit2
The MoveIt Motion Planning Framework for ROS 2.
rotated_header_view.cpp
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34 
35 /* Author: Robert Haschke */
36 
38 #include <QPainter>
39 
40 namespace moveit_setup
41 {
42 namespace srdf_setup
43 {
44 RotatedHeaderView::RotatedHeaderView(Qt::Orientation orientation, QWidget* parent) : QHeaderView(orientation, parent)
45 {
46 #if (QT_VERSION >= QT_VERSION_CHECK(5, 0, 0))
47  setSectionsClickable(true);
48  setSectionResizeMode(Fixed);
49 #else
50  setClickable(true);
51  setResizeMode(Fixed);
52 #endif
53  setDefaultSectionSize(27);
54 }
55 
56 void RotatedHeaderView::paintSection(QPainter* painter, const QRect& rect, int logicalIndex) const
57 {
58  if (orientation() == Qt::Vertical)
59  {
60  QHeaderView::paintSection(painter, rect, logicalIndex);
61  return;
62  }
63 
64  painter->save();
65  // rotate about (x,y)
66  painter->translate(rect.x(), rect.y());
67  painter->rotate(-90);
68  painter->translate(-rect.height(), 0);
69  QHeaderView::paintSection(painter, QRect(0, 0, rect.height(), rect.width()), logicalIndex);
70  painter->restore();
71 }
72 
73 QSize RotatedHeaderView::sectionSizeFromContents(int logicalIndex) const
74 {
75  if (orientation() == Qt::Vertical)
76  return QHeaderView::sectionSizeFromContents(logicalIndex);
77 
78  Q_ASSERT(logicalIndex >= 0);
79 
80  ensurePolished();
81 
82  // use SizeHintRole
83  QVariant variant = model()->headerData(logicalIndex, Qt::Vertical, Qt::SizeHintRole);
84  if (variant.isValid())
85  return qvariant_cast<QSize>(variant);
86 
87  // otherwise use the contents
88  QStyleOptionHeader opt;
89  initStyleOption(&opt);
90  opt.section = logicalIndex;
91  QVariant var = model()->headerData(logicalIndex, orientation(), Qt::FontRole);
92  QFont fnt;
93  if (var.isValid() && var.canConvert<QFont>())
94  {
95  fnt = qvariant_cast<QFont>(var);
96  }
97  else
98  {
99  fnt = font();
100  }
101  fnt.setBold(true);
102  opt.fontMetrics = QFontMetrics(fnt);
103  opt.text = model()->headerData(logicalIndex, orientation(), Qt::DisplayRole).toString();
104  variant = model()->headerData(logicalIndex, orientation(), Qt::DecorationRole);
105  opt.icon = qvariant_cast<QIcon>(variant);
106  if (opt.icon.isNull())
107  opt.icon = qvariant_cast<QPixmap>(variant);
108  QSize size = style()->sizeFromContents(QStyle::CT_HeaderSection, &opt, QSize(), this);
109  if (isSortIndicatorShown())
110  {
111  int margin = style()->pixelMetric(QStyle::PM_HeaderMargin, &opt, this);
112  if (orientation() == Qt::Horizontal)
113  {
114  size.rwidth() += size.height() + margin;
115  }
116  else
117  {
118  size.rheight() += size.width() + margin;
119  }
120  }
121  return QSize(size.height(), size.width());
122 }
123 
124 int RotatedHeaderView::sectionSizeHint(int logicalIndex) const
125 {
126  if (isSectionHidden(logicalIndex))
127  return 0;
128  if (logicalIndex < 0 || logicalIndex >= count())
129  return -1;
130  QSize size;
131  QVariant value = model()->headerData(logicalIndex, orientation(), Qt::SizeHintRole);
132  if (value.isValid())
133  {
134  size = qvariant_cast<QSize>(value);
135  }
136  else
137  {
138  size = sectionSizeFromContents(logicalIndex);
139  }
140  int hint = size.height();
141  return qMax(minimumSectionSize(), hint);
142 }
143 } // namespace srdf_setup
144 } // namespace moveit_setup
void paintSection(QPainter *painter, const QRect &rect, int logicalIndex) const override
RotatedHeaderView(Qt::Orientation orientation, QWidget *parent=nullptr)
QSize sectionSizeFromContents(int logicalIndex) const override