+void ImageViewer::resizeEvent(QResizeEvent *e)
+{
+ QWidget::resizeEvent(e);
+}
+
+template <class T>
+QString createPixelLabel(image::Image *img, int x, int y)
+{
+ QString pixelLabel;
+ unsigned char *pixelLocation = 0;
+ T *pixel;
+
+ pixelLocation = img->pixels + img->stride() * y;
+ pixelLocation += x * img->bytesPerPixel;
+ pixel = ((T*)pixelLocation);
+
+ pixelLabel += QLatin1String("[");
+ pixelLabel += QString::fromLatin1("%1").arg(pixel[0]);
+
+ for (int channel = 1; channel < img->channels; ++channel) {
+ pixelLabel += QString::fromLatin1(", %1").arg(pixel[channel]);
+ }
+ pixelLabel += QLatin1String("]");
+
+ return pixelLabel;
+}
+
+void ImageViewer::showPixel(int x, int y)
+{
+ xSpinBox->setValue(x);
+ ySpinBox->setValue(y);
+
+ if (!m_image)
+ return;
+
+ QString label = tr("Pixel: ");
+
+ if (m_image->channelType == image::TYPE_UNORM8) {
+ label += createPixelLabel<unsigned char>(m_image, x, y);
+ } else {
+ label += createPixelLabel<float>(m_image, x, y);
+ }
+
+ pixelLabel->setText(label);
+ pixelLabel->show();
+}
+
+void ImageViewer::showGrid(const QRect &rect)
+{
+ if (rect.isEmpty()) {
+ rectLabel->hide();
+ return;
+ }
+ rectLabel->setText(tr("Grid: [%1, %2, %3, %4]")
+ .arg(rect.x())
+ .arg(rect.y())
+ .arg(rect.width())
+ .arg(rect.height()));
+ rectLabel->show();
+}
+