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Code Issues Releases Wiki Activity

Start support of linear gradient wallpapers.

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This commit is contained in:
John Preston
2021-08-12 17:51:44 +03:00
parent 1fd28d5cfb
commit c2b1187948
14 changed files with 379 additions and 227 deletions
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57
Telegram/SourceFiles/window/section_widget.cpp
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@@ -90,8 +90,9 @@ void SectionWidget::PaintBackground(
QRect clip) {
Painter p(widget);
const auto background = Window::Theme::Background();
auto fill = QRect(0, 0, widget->width(), controller->content()->height());
if (const auto color = Window::Theme::Background()->colorForFill()) {
if (const auto color = background->colorForFill()) {
p.fillRect(fill, *color);
return;
}
@@ -99,31 +100,45 @@ void SectionWidget::PaintBackground(
auto x = 0, y = 0;
auto cached = controller->content()->cachedBackground(fill, x, y);
if (cached.isNull()) {
if (Window::Theme::Background()->tile()) {
auto &pix = Window::Theme::Background()->pixmapForTiled();
auto left = clip.left();
auto top = clip.top();
auto right = clip.left() + clip.width();
auto bottom = clip.top() + clip.height();
auto w = pix.width() / cRetinaFactor();
auto h = pix.height() / cRetinaFactor();
auto sx = qFloor(left / w);
auto sy = qFloor((top - fromy) / h);
auto cx = qCeil(right / w);
auto cy = qCeil((bottom - fromy) / h);
for (auto i = sx; i < cx; ++i) {
for (auto j = sy; j < cy; ++j) {
p.drawPixmap(QPointF(i * w, fromy + j * h), pix);
const auto gradient = background->gradientForFill();
const auto patternOpacity = background->paper().patternOpacity();
const auto &bg = background->pixmap();
if (background->tile() || bg.isNull()) {
if (!gradient.isNull()) {
auto hq = PainterHighQualityEnabler(p);
p.drawImage(fill, gradient);
p.setCompositionMode(QPainter::CompositionMode_SoftLight);
p.setOpacity(patternOpacity);
}
if (!bg.isNull()) {
auto &tiled = background->pixmapForTiled();
auto left = clip.left();
auto top = clip.top();
auto right = clip.left() + clip.width();
auto bottom = clip.top() + clip.height();
auto w = tiled.width() / cRetinaFactor();
auto h = tiled.height() / cRetinaFactor();
auto sx = qFloor(left / w);
auto sy = qFloor((top - fromy) / h);
auto cx = qCeil(right / w);
auto cy = qCeil((bottom - fromy) / h);
for (auto i = sx; i < cx; ++i) {
for (auto j = sy; j < cy; ++j) {
p.drawPixmap(QPointF(i * w, fromy + j * h), tiled);
}
}
}
} else {
PainterHighQualityEnabler hq(p);
auto &pix = Window::Theme::Background()->pixmap();
auto hq = PainterHighQualityEnabler(p);
QRect to, from;
Window::Theme::ComputeBackgroundRects(fill, pix.size(), to, from);
Window::Theme::ComputeBackgroundRects(fill, bg.size(), to, from);
if (!gradient.isNull()) {
p.drawImage(to, gradient);
p.setCompositionMode(QPainter::CompositionMode_SoftLight);
p.setOpacity(patternOpacity);
}
to.moveTop(to.top() + fromy);
p.drawPixmap(to, pix, from);
p.drawPixmap(to, bg, from);
}
} else {
p.drawPixmap(x, fromy + y, cached);