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fix scaling for background images on home tab (#6656)

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ebbit1q 2026-03-04 00:16:45 +01:00 committed by GitHub
parent 43acac5f5d
commit 566c876bdc
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3 changed files with 17 additions and 18 deletions
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12
cockatrice/src/interface/widgets/cards/card_info_picture_art_crop_widget.cpp
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@ -8,7 +8,7 @@ CardInfoPictureArtCropWidget::CardInfoPictureArtCropWidget(QWidget *parent)
hide();
}
QPixmap CardInfoPictureArtCropWidget::getProcessedBackground(const QSize &targetSize)
QPixmap CardInfoPictureArtCropWidget::getBackground()
{
// Load the full-resolution card image, not a pre-scaled one
QPixmap fullResPixmap;
@ -17,10 +17,8 @@ QPixmap CardInfoPictureArtCropWidget::getProcessedBackground(const QSize &target
} else {
CardPictureLoader::getCardBackPixmap(fullResPixmap, QSize(745, 1040));
}
// Fail-safe if loading failed
if (fullResPixmap.isNull()) {
return QPixmap(targetSize);
return QPixmap(); // return null qpixmap
}
const QSize sz = fullResPixmap.size();
@ -33,9 +31,7 @@ QPixmap CardInfoPictureArtCropWidget::getProcessedBackground(const QSize &target
foilRect = foilRect.intersected(fullResPixmap.rect()); // always clamp to source bounds
// Crop first, then scale for best quality
// return full resolution image crop
QPixmap cropped = fullResPixmap.copy(foilRect);
QPixmap scaled = cropped.scaled(targetSize, Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation);
return scaled;
return cropped;
}

4
cockatrice/src/interface/widgets/cards/card_info_picture_art_crop_widget.h
View File

@ -16,8 +16,8 @@ class CardInfoPictureArtCropWidget : public CardInfoPictureWidget
public:
explicit CardInfoPictureArtCropWidget(QWidget *parent = nullptr);
// Returns a processed (cropped & scaled) version of the pixmap
QPixmap getProcessedBackground(const QSize &targetSize);
// Returns a cropped version of the pixmap
QPixmap getBackground();
};
#endif // CARD_INFO_PICTURE_ART_CROP_WIDGET_H

19
cockatrice/src/interface/widgets/general/home_widget.cpp
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@ -125,7 +125,7 @@ void HomeWidget::updateRandomCard()
connect(newCard.getCardPtr().data(), &CardInfo::pixmapUpdated, this, &HomeWidget::updateBackgroundProperties);
backgroundSourceCard->setCard(newCard);
background = backgroundSourceCard->getProcessedBackground(size());
background = backgroundSourceCard->getBackground();
if (SettingsCache::instance().getHomeTabBackgroundShuffleFrequency() <= 0) {
cardChangeTimer->stop();
@ -143,7 +143,7 @@ void HomeWidget::onBackgroundShuffleFrequencyChanged()
void HomeWidget::updateBackgroundProperties()
{
background = backgroundSourceCard->getProcessedBackground(size());
background = backgroundSourceCard->getBackground();
updateButtonsToBackgroundColor();
update(); // Triggers repaint
}
@ -301,14 +301,17 @@ void HomeWidget::paintEvent(QPaintEvent *event)
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing);
background = background.scaled(size(), Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation);
if (!background.isNull()) {
QSize widgetSize = size() * devicePixelRatio();
QPixmap toDraw = background.scaled(widgetSize, Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation);
// Draw already-scaled background centered
QSize widgetSize = size();
QSize bgSize = background.size();
QPoint topLeft((widgetSize.width() - bgSize.width()) / 2, (widgetSize.height() - bgSize.height()) / 2);
// Draw scaled background centered
QSize bgSize = toDraw.size();
QPoint topLeft((widgetSize.width() - bgSize.width()) / (devicePixelRatio() * 2), // undo scaling for painter
(widgetSize.height() - bgSize.height()) / (devicePixelRatio() * 2));
painter.drawPixmap(topLeft, background);
painter.drawPixmap(topLeft, toDraw);
}
// Draw translucent black overlay with rounded corners
QRectF overlayRect(5, 5, width() - 10, height() - 10);