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Code Issues Releases Wiki Activity

improved backgrounds for retina displays and xcode build

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This commit is contained in:
John Preston
2015-02-03 19:44:54 +03:00
parent b8b4a81576
commit 136e32110e
7 changed files with 73 additions and 28 deletions
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30
Telegram/SourceFiles/mainwidget.cpp
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@@ -718,11 +718,31 @@ void MainWidget::onCancelResend() {
void MainWidget::onCacheBackground() {
const QPixmap &bg(*cChatBackground());
QRect to, from;
backgroundParams(_willCacheFor, to, from);
_cachedX = to.x();
_cachedY = to.y();
_cachedBackground = QPixmap::fromImage(bg.toImage().copy(from).scaled(to.width(), to.height(), Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
if (cTileBackground()) {
QImage result(_willCacheFor.width() * cIntRetinaFactor(), _willCacheFor.height() * cIntRetinaFactor(), QImage::Format_RGB32);
result.setDevicePixelRatio(2);
{
QPainter p(&result);
int left = 0, top = 0, right = _willCacheFor.width(), bottom = _willCacheFor.height();
float64 w = bg.width() / cRetinaFactor(), h = bg.height() / cRetinaFactor();
int sx = 0, sy = 0, cx = qCeil(_willCacheFor.width() / w), cy = qCeil(_willCacheFor.height() / h);
for (int i = sx; i < cx; ++i) {
for (int j = sy; j < cy; ++j) {
p.drawPixmap(QPointF(i * w, j * h), bg);
}
}
}
_cachedX = 0;
_cachedY = 0;
_cachedBackground = QPixmap::fromImage(result);
} else {
QRect to, from;
backgroundParams(_willCacheFor, to, from);
_cachedX = to.x();
_cachedY = to.y();
_cachedBackground = QPixmap::fromImage(bg.toImage().copy(from).scaled(to.width() * cIntRetinaFactor(), to.height() * cIntRetinaFactor(), Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
_cachedBackground.setDevicePixelRatio(cRetinaFactor());
}
_cachedFor = _willCacheFor;
}