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Image coords should be multiply devicePixelRatio.

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I hope this fixes #17277.
This commit is contained in:
John Preston 2022-01-10 18:18:14 +03:00
parent 963694330d
commit 3b4ed03105
1 changed files with 11 additions and 9 deletions
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20
Telegram/SourceFiles/ui/chat/chat_theme.cpp
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@ -56,6 +56,7 @@ constexpr auto kMinAcceptableContrast = 1.14;// 4.5;
const CacheBackgroundRequest &request) {
Expects(!request.area.isEmpty());
const auto ratio = style::DevicePixelRatio();
const auto gradient = request.background.gradientForFill.isNull()
? QImage()
: (request.gradientRotationAdd != 0)
@ -70,13 +71,13 @@ constexpr auto kMinAcceptableContrast = 1.14;// 4.5;
|| request.background.prepared.isNull()) {
auto result = gradient.isNull()
? QImage(
request.area * style::DevicePixelRatio(),
request.area * ratio,
QImage::Format_ARGB32_Premultiplied)
: gradient.scaled(
request.area * style::DevicePixelRatio(),
request.area * ratio,
Qt::IgnoreAspectRatio,
Qt::SmoothTransformation);
result.setDevicePixelRatio(style::DevicePixelRatio());
result.setDevicePixelRatio(ratio);
if (!request.background.prepared.isNull()) {
QPainter p(&result);
if (!gradient.isNull()) {
@ -90,13 +91,13 @@ constexpr auto kMinAcceptableContrast = 1.14;// 4.5;
}
const auto tiled = request.background.isPattern
? request.background.prepared.scaled(
request.area.height() * style::DevicePixelRatio(),
request.area.height() * style::DevicePixelRatio(),
request.area.height() * ratio,
request.area.height() * ratio,
Qt::KeepAspectRatio,
Qt::SmoothTransformation)
: request.background.preparedForTiled;
const auto w = tiled.width() / float(style::DevicePixelRatio());
const auto h = tiled.height() / float(style::DevicePixelRatio());
const auto w = tiled.width() / float(ratio);
const auto h = tiled.height() / float(ratio);
const auto cx = int(std::ceil(request.area.width() / w));
const auto cy = int(std::ceil(request.area.height() / h));
const auto rows = cy;
@ -104,11 +105,12 @@ constexpr auto kMinAcceptableContrast = 1.14;// 4.5;
? (((cx / 2) * 2) + 1)
: cx;
const auto xshift = request.background.isPattern
? (request.area.width() - cols * w) / 2
? (request.area.width() * ratio - cols * tiled.width()) / 2
: 0;
const auto useshift = xshift / float(ratio);
for (auto y = 0; y != rows; ++y) {
for (auto x = 0; x != cols; ++x) {
p.drawImage(QPointF(xshift + x * w, y * h), tiled);
p.drawImage(QPointF(useshift + x * w, y * h), tiled);
}
}
if (!gradient.isNull()