src/trackinfo.cpp

   1 #include <QPaintEngine>
   2 #include <QPaintDevice>
   3 #include "config.h"
   4 #include "infoitem.h"
   5 #include "trackinfo.h"
   6
   7
   8 TrackInfo::TrackInfo(QObject *parent) : QGraphicsScene(parent)
   9 {
  10         _info = new InfoItem();
  11         addItem(_info);
  12 }
  13
  14 void TrackInfo::insert(const QString &key, const QString &value)
  15 {
  16         _info->insert(key, value);
  17 }
  18
  19 void TrackInfo::plot(QPainter *painter, const QRectF &target)
  20 {
  21         qreal ratio = painter->paintEngine()->paintDevice()->logicalDpiX()
  22           / SCREEN_DPI;
  23         QSizeF canvas = QSizeF(target.width() / ratio, target.height() / ratio);
  24         QSizeF diff = QSizeF(qAbs(canvas.width() - sceneRect().width()),
  25           qAbs(canvas.height() - sceneRect().height()));
  26         QRectF adj = sceneRect().adjusted(0, -diff.height()/2, diff.width(),
  27           diff.height()/2);
  28
  29         render(painter, target, adj);
  30 }
  31
  32 bool TrackInfo::isEmpty() const
  33 {
  34         return _info->isEmpty();
  35 }
  36
  37 QSizeF TrackInfo::contentSize() const
  38 {
  39         return sceneRect().size();
  40 }