52 lines
1.8 KiB
C++
52 lines
1.8 KiB
C++
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#include <QWheelEvent>
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#include "imageview.h"
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#include <iostream>
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ImageView::ImageView(QWidget *parent) :
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QLabel(parent) {
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// std::cout << this->geometry().height() << " " << this->geometry().width() << std::endl;
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}
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// ImageView::ImageView(QWidget *parent, std::string path):
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// QLabel(parent) {
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// this->setPixmap(QPixmap(QString::fromStdString(path)));
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// }
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void ImageView::wheelEvent(QWheelEvent *event) {
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QPointF shift = event->position();
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QRegion r = QRegion();
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// this->pixmap(Qt::ReturnByValueConstant::ReturnByValue).scroll(10, 10, this->rect(), &r);
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this->scroll(shift.x(), shift.y(), this->rect());
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// this->setPixmap(QPixmap());
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// pm.scroll(shift.x(), shift.y(), this->rect());
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// pm.scroll();
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// this->setPixmap(pm);
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//this->pixmap(Qt::ReturnByValueConstant::ReturnByValue).scroll(shift.x(), shift.y(), this->pixmap()->rect());
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QPoint numDegrees = event->angleDelta() / 8;
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std::cout << numDegrees.x() << std::endl;
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event->accept();
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}
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void ImageView::setImage(std::string image){
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//Commented is a way of scaling that is, as I understand, is lossless. If there'll be problems with current method's losses, I'll return to commented method
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maxHeight = this->height();
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maxWidth = this->width();
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QPixmap pixmap = QPixmap(QString::fromStdString(image));
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// double scaleFactor = pixmap.height() > pixmap.width()? static_cast<double>(maxHeight) / pixmap.height() : static_cast<double>(maxWidth) / pixmap.width();
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pixmap = pixmap.scaled(maxWidth, maxHeight, Qt::AspectRatioMode::KeepAspectRatio);
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this->setPixmap(pixmap);
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// this->setGeometry(this->geometry().x(), this->geometry().y(), pixmap.width() * scaleFactor, pixmap.height() * scaleFactor);
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// this->setScaledContents(true);
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}
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