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Tile patterns horizontally.

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This commit is contained in:
John Preston 2021-08-20 15:55:10 +03:00
parent f3f741e1eb
commit 1e8e163bb1
2 changed files with 19 additions and 30 deletions
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48
Telegram/SourceFiles/window/window_session_controller.cpp
View file

@ -86,7 +86,7 @@ constexpr auto kBackgroundFadeDuration = crl::time(200);
request.gradientColors,
request.gradientRotation)
: request.gradient;
if (request.tile || request.prepared.isNull()) {
if (request.isPattern || request.tile || request.prepared.isNull()) {
auto result = gradient.isNull()
? QImage(
request.area * cIntRetinaFactor(),
@ -107,16 +107,25 @@ constexpr auto kBackgroundFadeDuration = crl::time(200);
QPainter::CompositionMode_DestinationIn);
}
}
const auto &tiled = request.preparedForTiled;
const auto tiled = request.isPattern
? request.prepared.scaled(
request.area.height() * cIntRetinaFactor(),
request.area.height() * cIntRetinaFactor(),
Qt::KeepAspectRatio,
Qt::SmoothTransformation)
: request.preparedForTiled;
const auto w = tiled.width() / cRetinaFactor();
const auto h = tiled.height() / cRetinaFactor();
auto sx = 0;
auto sy = 0;
const auto cx = qCeil(request.area.width() / w);
const auto cy = qCeil(request.area.height() / h);
for (int i = sx; i < cx; ++i) {
for (int j = sy; j < cy; ++j) {
p.drawImage(QPointF(i * w, j * h), tiled);
const auto rows = cy;
const auto cols = request.isPattern ? (((cx / 2) * 2) + 1) : cx;
const auto xshift = request.isPattern
? (request.area.width() - cols * w) / 2
: 0;
for (auto y = 0; y != rows; ++y) {
for (auto x = 0; x != cols; ++x) {
p.drawImage(QPointF(xshift + x * w, y * h), tiled);
}
}
if (!gradient.isNull()
@ -137,34 +146,12 @@ constexpr auto kBackgroundFadeDuration = crl::time(200);
const auto rects = Window::Theme::ComputeBackgroundRects(
request.area,
request.prepared.size());
auto image = request.prepared.copy(rects.from).scaled(
auto result = request.prepared.copy(rects.from).scaled(
rects.to.width() * cIntRetinaFactor(),
rects.to.height() * cIntRetinaFactor(),
Qt::IgnoreAspectRatio,
Qt::SmoothTransformation);
auto result = gradient.isNull()
? std::move(image)
: gradient.scaled(
image.size(),
Qt::IgnoreAspectRatio,
Qt::SmoothTransformation);
result.setDevicePixelRatio(cRetinaFactor());
if (!gradient.isNull()) {
QPainter p(&result);
if (request.patternOpacity >= 0.) {
p.setCompositionMode(QPainter::CompositionMode_SoftLight);
p.setOpacity(request.patternOpacity);
} else {
p.setCompositionMode(QPainter::CompositionMode_DestinationIn);
}
p.drawImage(QRect(QPoint(), rects.to.size()), image);
if (request.patternOpacity < 0. && request.patternOpacity > -1.) {
p.setCompositionMode(QPainter::CompositionMode_SourceOver);
p.setOpacity(1. + request.patternOpacity);
p.fillRect(QRect(QPoint(), rects.to.size()), Qt::black);
}
}
image = QImage();
return {
.image = std::move(result).convertToFormat(
QImage::Format_ARGB32_Premultiplied),
@ -1567,6 +1554,7 @@ auto SessionController::currentCacheRequest(QSize area, int addRotation) const
+ _backgroundAddRotation
+ addRotation) % 360,
.tile = background->tile(),
.isPattern = background->paper().isPattern(),
.recreateGradient = (addRotation != 0),
.gradient = gradient,
.gradientColors = (gradient.isNull()

1
Telegram/SourceFiles/window/window_session_controller.h
View file

@ -66,6 +66,7 @@ struct CacheBackgroundRequest {
QSize area;
int gradientRotation = 0;
bool tile = false;
bool isPattern = false;
bool recreateGradient = false;
QImage gradient;
std::vector<QColor> gradientColors;