Hi,

I extended QGraphicsView and, in its constructor, want to load a few pixmaps to display on-screen. To test that the pixmaps are properly loaded, I use qWarning (see below), and from what I can tell in the watch window locals, the image is being loaded. However, past that point, I don't know how to check the data in QLabel if it isn't showing up properly on screen. QLabels are loaded into QGraphicsGridLayout, which is then setLayout into the top-level QGraphicsObject:

Qt Code: 
  1. MyViewer::MyViewer(QGraphicsScene *scene)
  2. {
  3.  
  4.     QGraphicsGridLayout *layout = new QGraphicsGridLayout;
  5.     img_board.resize(8);
  6.     for (int i = 0; i < 8; ++i)
  7.         img_board[i].resize(8);
  8.     for (int j = 0; j < 8; ++j) {
  9.         for (int i = 0; i < 8; ++i) {
  10.             int index = 8*i + j;
  11.             char buffer[200];
  12.             QString qindex = itoa(index, buffer, 10);
  13.             QString filename(qApp->applicationDirPath() + "/img/");
  14.             filename += qindex;
  15.             filename += ".png";
  16.  
  17.             QPixmap qimg;
  18.             if (qimg.load(filename))
  19.                 qWarning("Failed to load target image");
  20.  
  21.             img_board[j][i] = new QLabel;
  22.             img_board[j][i]->setPixmap(qimg);
  23.             QGraphicsProxyWidget* pixwidget = scene->addWidget(img_board[j][i]);
  24.             layout->addItem(pixwidget, i, j + 1);
  25.         }
  26.     }
  27.     QGraphicsWidget* form = new QGraphicsWidget;
  28.     form->setLayout(layout);
  29.     scene->addItem(form);
  30.     setWindowTitle(tr("TESTING"));
  31.     resize(800, 600);
  32.     form->show();
  33. }
  34.  
  35. .....
  36.  
  37.  
  38. int main(int argc, char *argv[])
  39. {
  40.     QApplication app(argc, argv);
  42.     MyViewer window(scene);
  43.     window.show();
  44.     return app.exec();
  45. }
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The application builds and runs, but the window is just one large white box. I tried digging into img_board as well as layout in the debugger, but the values are a bunch of addresses, with nothing I can use to verify that I properly loaded the pixmap. However, the warnings have stopped, so loads are working, I think.

Thanks for your help!