#include "imageviewer.h"
+#include "pixelwidget.h"
+#include "apisurface.h"
+#include "image/image.hpp"
+
+#include <QDebug>
#include <QDesktopWidget>
#include <QPainter>
#include <QPixmap>
#include <QScrollBar>
ImageViewer::ImageViewer(QWidget *parent)
- : QDialog(parent)
+ : QDialog(parent),
+ m_image(0)
{
setupUi(this);
+ connect(lowerSpinBox, SIGNAL(valueChanged(double)),
+ SLOT(slotUpdate()));
+ connect(upperSpinBox, SIGNAL(valueChanged(double)),
+ SLOT(slotUpdate()));
+ connect(flipCheckBox, SIGNAL(stateChanged(int)),
+ SLOT(slotUpdate()));
+ connect(opaqueCheckBox, SIGNAL(stateChanged(int)),
+ SLOT(slotUpdate()));
+ connect(alphaCheckBox, SIGNAL(stateChanged(int)),
+ SLOT(slotUpdate()));
+
QPixmap px(32, 32);
QPainter p(&px);
p.fillRect(0, 0, 32, 32, Qt::white);
pal.setBrush(QPalette::Base,
QBrush(px));
scrollAreaWidgetContents->setPalette(pal);
+
+ m_pixelWidget = new PixelWidget(scrollAreaWidgetContents);
+ verticalLayout_2->addWidget(m_pixelWidget);
+
+ rectLabel->hide();
+ pixelLabel->hide();
+
+ connect(m_pixelWidget, SIGNAL(zoomChanged(int)),
+ zoomSpinBox, SLOT(setValue(int)));
+ connect(zoomSpinBox, SIGNAL(valueChanged(int)),
+ m_pixelWidget, SLOT(setZoom(int)));
+ connect(m_pixelWidget, SIGNAL(mousePosition(int, int)),
+ this, SLOT(showPixel(int, int)));
+ connect(m_pixelWidget, SIGNAL(gridGeometry(const QRect &)),
+ this, SLOT(showGrid(const QRect &)));
+}
+
+ImageViewer::~ImageViewer()
+{
+ delete m_image;
+}
+
+void ImageViewer::setBase64Data(const QByteArray &base64)
+{
+ delete m_image;
+ m_image = ApiSurface::imageFromBase64(base64);
+ m_convertedImage = ApiSurface::qimageFromRawImage(m_image);
+ m_pixelWidget->setSurface(m_convertedImage);
+ updateGeometry();
}
-void ImageViewer::setImage(const QImage &image)
+static inline int clamp(int x)
{
- m_image = image;
- QPixmap px = QPixmap::fromImage(image);
- imageLabel->setPixmap(px);
+ if (x <= 0) {
+ return 0;
+ }
+ if (x > 255) {
+ return 255;
+ }
+ return x;
+}
+
+void ImageViewer::slotUpdate()
+{
+ m_convertedImage =
+ m_convertedImage.mirrored(false, flipCheckBox->isChecked());
+
+ double lowerValue = lowerSpinBox->value();
+ double upperValue = upperSpinBox->value();
+
+ bool opaque = opaqueCheckBox->isChecked();
+ bool alpha = alphaCheckBox->isChecked();
+
+ if (lowerValue != 0.0 || upperValue != 1.0 || opaque || alpha) {
+ /*
+ * Rescale the image.
+ *
+ * XXX: This would be much more useful if done with the full precision
+ * of the original image
+ */
+
+ int offset = - lowerValue * 255;
+ int scale = 256 / (upperValue - lowerValue);
+
+ m_convertedImage =
+ m_convertedImage.convertToFormat(QImage::Format_ARGB32);
+
+ if (0) {
+ qDebug()
+ << "offset = " << offset << "\n"
+ << "scale = " << scale << "\n";
+ }
+
+ int width = m_convertedImage.width();
+ int height = m_convertedImage.height();
+
+ int aMask = opaque ? 0xff : 0;
+
+ for (int y = 0; y < height; ++y) {
+ QRgb *scanline = (QRgb *)m_convertedImage.scanLine(y);
+ for (int x = 0; x < width; ++x) {
+ QRgb pixel = scanline[x];
+ int r = qRed(pixel);
+ int g = qGreen(pixel);
+ int b = qBlue(pixel);
+ int a = qAlpha(pixel);
+ if (alpha) {
+ a = clamp(((a + offset) * scale) >> 8);
+ scanline[x] = qRgba(a, a, a, 0xff);
+ } else {
+ r = clamp(((r + offset) * scale) >> 8);
+ g = clamp(((g + offset) * scale) >> 8);
+ b = clamp(((b + offset) * scale) >> 8);
+ a |= aMask;
+ scanline[x] = qRgba(r, g, b, a);
+ }
+ }
+ }
+ }
+
+ m_pixelWidget->setSurface(m_convertedImage);
+
updateGeometry();
}
scrollArea->verticalScrollBar()->width() : 0;
int hScrollHeight = scrollArea->horizontalScrollBar() ?
scrollArea->horizontalScrollBar()->height() : 0;
- QSize optimalWindowSize(m_image.width() + vScrollWidth,
- m_image.height() + hScrollHeight);
+ QSize optimalWindowSize(m_convertedImage.width() + vScrollWidth,
+ m_convertedImage.height() + hScrollHeight);
QRect screenRect = QApplication::desktop()->availableGeometry();
- const float maxPercentOfDesktopSpace = 0.8;
+ const float maxPercentOfDesktopSpace = 0.8f;
QSize maxAvailableSize(maxPercentOfDesktopSpace * screenRect.width(),
maxPercentOfDesktopSpace * screenRect.height());
qMin(optimalWindowSize.height(), maxAvailableSize.height()));
}
+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();
+}
+
#include "imageviewer.moc"
projects / apitrace / blobdiff