#include "imageviewer.h"
+#include "pixelwidget.h"
#include <QDebug>
#include <QDesktopWidget>
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);
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 &)));
}
void ImageViewer::setImage(const QImage &image)
{
m_image = image;
m_temp = m_image;
- QPixmap px = QPixmap::fromImage(m_temp);
- imageLabel->setPixmap(px);
+ m_pixelWidget->setSurface(m_image);
updateGeometry();
}
double lowerValue = lowerSpinBox->value();
double upperValue = upperSpinBox->value();
- if (lowerValue != 0.0 || upperValue != 1.0) {
+ bool opaque = opaqueCheckBox->isChecked();
+ bool alpha = alphaCheckBox->isChecked();
+
+ if (lowerValue != 0.0 || upperValue != 1.0 || opaque || alpha) {
/*
* Rescale the image.
*
int width = m_temp.width();
int height = m_temp.height();
+ int aMask = opaque ? 0xff : 0;
+
for (int y = 0; y < height; ++y) {
QRgb *scanline = (QRgb *)m_temp.scanLine(y);
for (int x = 0; x < width; ++x) {
int r = qRed(pixel);
int g = qGreen(pixel);
int b = qBlue(pixel);
- r = clamp(((r + offset) * scale) >> 8);
- g = clamp(((g + offset) * scale) >> 8);
- b = clamp(((b + offset) * scale) >> 8);
- int a = 255;
- scanline[x] = qRgba(r, g, b, a);
+ 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);
+ }
}
}
}
- QPixmap px = QPixmap::fromImage(m_temp);
- imageLabel->setPixmap(px);
+ m_pixelWidget->setSurface(m_temp);
updateGeometry();
}
m_image.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);
+}
+
+void ImageViewer::showPixel(int x, int y)
+{
+ xSpinBox->setValue(x);
+ ySpinBox->setValue(y);
+ QColor clr = m_pixelWidget->colorAtCurrentPosition();
+ pixelLabel->setText(tr("RGBA: (%1, %2, %3, %4)")
+ .arg(clr.red())
+ .arg(clr.green())
+ .arg(clr.blue())
+ .arg(clr.alpha()));
+ 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"