src/GUI/trackinfo.cpp

   1 #include <QPaintEngine>
   2 #include <QPaintDevice>
   3 #include "infoitem.h"
   4 #include "trackinfo.h"
   5
   6
   7 TrackInfo::TrackInfo(QObject *parent) : QGraphicsScene(parent)
   8 {
   9         _info = new InfoItem();
  10         addItem(_info);
  11 }
  12
  13 void TrackInfo::insert(const QString &key, const QString &value)
  14 {
  15         _info->insert(key, value);
  16 }
  17
  18 void TrackInfo::plot(QPainter *painter, const QRectF &target, qreal scale)
  19 {
  20         QSizeF canvas = QSizeF(target.width() / scale, target.height() / scale);
  21         QSizeF diff = QSizeF(qAbs(canvas.width() - sceneRect().width()),
  22           qAbs(canvas.height() - sceneRect().height()));
  23         QRectF adj = sceneRect().adjusted(0, -diff.height()/2, diff.width(),
  24           diff.height()/2);
  25
  26         render(painter, target, adj);
  27 }
  28
  29 bool TrackInfo::isEmpty() const
  30 {
  31         return _info->isEmpty();
  32 }
  33
  34 QSizeF TrackInfo::contentSize() const
  35 {
  36         return sceneRect().size();
  37 }