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#include "imageviewer.h"
#include "pixelwidget.h"
#include "apisurface.h"
#include "image.hpp"
#include <QDebug>
#include <QDesktopWidget>
#include <QPainter>
#include <QPixmap>
#include <QScrollBar>
ImageViewer::ImageViewer(QWidget *parent, bool opaque, bool alpha)
: QDialog(parent),
m_image(0)
{
setupUi(this);
opaqueCheckBox->setChecked(opaque);
alphaCheckBox->setChecked(alpha);
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);
p.fillRect(0, 0, 16, 16, QColor(193, 193, 193));
p.fillRect(16, 16, 16, 16, QColor(193, 193, 193));
p.end();
QPalette pal = scrollAreaWidgetContents->palette();
pal.setBrush(QPalette::Background,
QBrush(px));
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::setData(const QByteArray &data)
{
delete m_image;
m_image = ApiSurface::imageFromData(data);
slotUpdate();
}
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();
m_convertedImage = ApiSurface::qimageFromRawImage(m_image,
lowerValue, upperValue,
opaque, alpha);
if (flipCheckBox->isChecked()) {
m_convertedImage = m_convertedImage.mirrored(false, true);
}
m_pixelWidget->setSurface(m_convertedImage);
updateGeometry();
}
QSize ImageViewer::sizeHint() const
{
QSize size;
int vScrollWidth = scrollArea->verticalScrollBar() ?
scrollArea->verticalScrollBar()->width() : 0;
int hScrollHeight = scrollArea->horizontalScrollBar() ?
scrollArea->horizontalScrollBar()->height() : 0;
QSize optimalWindowSize(m_convertedImage.width() + vScrollWidth,
m_convertedImage.height() + hScrollHeight);
QRect screenRect = QApplication::desktop()->availableGeometry();
const float maxPercentOfDesktopSpace = 0.8f;
QSize maxAvailableSize(maxPercentOfDesktopSpace * screenRect.width(),
maxPercentOfDesktopSpace * screenRect.height());
return QSize(qMin(optimalWindowSize.width(), maxAvailableSize.width()),
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;
if (x < 0 || y < 0 || x >= img->width || y >= img->height) {
return QString::fromLatin1("(Out of bounds)");
}
pixelLocation = img->pixels + img->stride() * y;
pixelLocation += x * img->bytesPerPixel;
pixel = ((T*)pixelLocation);
pixelLabel += QLatin1String("[");
pixelLabel += QString::fromLatin1("%1").arg((double)pixel[0], 0, 'g', 9);
for (int channel = 1; channel < img->channels; ++channel) {
pixelLabel += QString::fromLatin1(", %1").arg((double)pixel[channel], 0, 'g', 9);
}
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 the image is flipped, substitute y to match */
if (flipCheckBox->isChecked()) {
y = m_convertedImage.height() - y - 1;
}
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"
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