src/GUI/infoitem.cpp

   1 #include <QFont>
   2 #include <QPainter>
   3 #include "font.h"
   4 #include "infoitem.h"
   5
   6 #define PADDING     10
   7
   8 InfoItem::InfoItem(QGraphicsItem *parent) : QGraphicsItem(parent)
   9 {
  10         _font.setPixelSize(FONT_SIZE);
  11         _font.setFamily(FONT_FAMILY);
  12 }
  13
  14 void InfoItem::updateBoundingRect()
  15 {
  16         QFontMetrics fm(_font);
  17         qreal width = 0;
  18
  19         for (QList<KV<QString, QString> >::const_iterator i = _list.constBegin();
  20           i != _list.constEnd(); i++) {
  21                 width += fm.horizontalAdvance(i->key() + ": " + i->value());
  22                 if (i != _list.constEnd() - 1)
  23                         width += PADDING;
  24         }
  25
  26         _boundingRect = QRectF(0, 0, width, _list.isEmpty() ? 0 : fm.height());
  27 }
  28
  29 void InfoItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
  30           QWidget *widget)
  31 {
  32         Q_UNUSED(option);
  33         Q_UNUSED(widget);
  34         QFontMetrics fm(_font);
  35         int width = 0;
  36
  37         painter->setFont(_font);
  38         painter->setRenderHint(QPainter::Antialiasing, false);
  39
  40         for (QList<KV<QString, QString> >::const_iterator i = _list.constBegin();
  41           i != _list.constEnd(); i++) {
  42                 QString text(i->key() + ": " + i->value());
  43                 painter->drawText(width, fm.height() - fm.descent(), text);
  44                 width += fm.horizontalAdvance(text);
  45                 if (i != _list.constEnd() - 1) {
  46                         width += PADDING;
  47                         painter->save();
  48                         painter->setPen(Qt::gray);
  49                         painter->drawLine(width - PADDING/2, fm.descent(),
  50                           width - PADDING/2, fm.height() - fm.descent());
  51                         painter->restore();
  52                 }
  53         }
  54
  55         //painter->setPen(Qt::red);
  56         //painter->drawRect(boundingRect());
  57 }
  58
  59 int InfoItem::indexOf(const QString &key) const
  60 {
  61         for (int i = 0; i < _list.size(); i++)
  62                 if (_list.at(i).key() == key)
  63                         return i;
  64
  65         return -1;
  66 }
  67
  68 void InfoItem::insert(const QString &key, const QString &value)
  69 {
  70         int i;
  71
  72         prepareGeometryChange();
  73
  74         if ((i = indexOf(key)) < 0)
  75                 _list.append(KV<QString, QString>(key, value));
  76         else
  77                 _list[i] = KV<QString, QString>(key, value);
  78
  79         updateBoundingRect();
  80         update();
  81 }
  82
  83 void InfoItem::clear()
  84 {
  85         prepareGeometryChange();
  86         _list.clear();
  87         updateBoundingRect();
  88 }