Support colored emoji more widely.

ui/style/style_core.cpp

@@ -87,7 +87,13 @@ rpl::producer<bool> ShortAnimationPlaying() {
 	return internal::ShortAnimationRunning.value();
 }
 
-void colorizeImage(const QImage &src, QColor c, QImage *outResult, QRect srcRect, QPoint dstPoint) {
+void colorizeImage(
+		const QImage &src,
+		const QColor &color,
+		not_null<QImage*> outResult,
+		QRect srcRect,
+		QPoint dstPoint,
+		bool useAlpha) {
 	// In background_box ColorizePattern we use the fact that
 	// colorizeImage takes only first byte of the mask, so it
 	// could be used for wallpaper patterns, which have values
@@ -99,22 +105,28 @@ void colorizeImage(const QImage &src, QColor c, QImage *outResult, QRect srcRect
 	}
 	auto width = srcRect.width();
 	auto height = srcRect.height();
-	Assert(outResult && outResult->rect().contains(QRect(dstPoint, srcRect.size())));
+	Assert(outResult->rect().contains(QRect(dstPoint, srcRect.size())));
 
-	auto pattern = anim::shifted(c);
+	auto pattern = anim::shifted(color);
 
 	constexpr auto resultIntsPerPixel = 1;
 	auto resultIntsPerLine = (outResult->bytesPerLine() >> 2);
 	auto resultIntsAdded = resultIntsPerLine - width * resultIntsPerPixel;
-	auto resultInts = reinterpret_cast<uint32*>(outResult->bits()) + dstPoint.y() * resultIntsPerLine + dstPoint.x() * resultIntsPerPixel;
+	auto resultInts = reinterpret_cast<uint32*>(outResult->bits())
+		+ (dstPoint.y() * resultIntsPerLine)
+		+ (dstPoint.x() * resultIntsPerPixel);
 	Assert(resultIntsAdded >= 0);
-	Assert(outResult->depth() == static_cast<int>((resultIntsPerPixel * sizeof(uint32)) << 3));
+	Assert(outResult->depth()
+		== static_cast<int>((resultIntsPerPixel * sizeof(uint32)) << 3));
 	Assert(outResult->bytesPerLine() == (resultIntsPerLine << 2));
 
 	auto maskBytesPerPixel = (src.depth() >> 3);
 	auto maskBytesPerLine = src.bytesPerLine();
 	auto maskBytesAdded = maskBytesPerLine - width * maskBytesPerPixel;
-	auto maskBytes = src.constBits() + srcRect.y() * maskBytesPerLine + srcRect.x() * maskBytesPerPixel;
+	auto maskBytes = src.constBits()
+		+ (srcRect.y() * maskBytesPerLine)
+		+ (srcRect.x() * maskBytesPerPixel)
+		+ (useAlpha ? 3 : 0);
 	Assert(maskBytesAdded >= 0);
 	Assert(src.depth() == (maskBytesPerPixel << 3));
 	for (int y = 0; y != height; ++y) {

ui/style/style_core.h

@@ -46,17 +46,33 @@ void NotifyPaletteChanged();
 
 // *outResult must be r.width() x r.height(), ARGB32_Premultiplied.
 // QRect(0, 0, src.width(), src.height()) must contain r.
-void colorizeImage(const QImage &src, QColor c, QImage *outResult, QRect srcRect = QRect(), QPoint dstPoint = QPoint(0, 0));
+void colorizeImage(
+	const QImage &src,
+	const QColor &color,
+	not_null<QImage*> outResult,
+	QRect srcRect = QRect(),
+	QPoint dstPoint = QPoint(0, 0),
+	bool useAlpha = false);
 
-inline QImage colorizeImage(const QImage &src, QColor c, QRect srcRect = QRect()) {
-	if (srcRect.isNull()) srcRect = src.rect();
-	auto result = QImage(srcRect.size(), QImage::Format_ARGB32_Premultiplied);
-	colorizeImage(src, c, &result, srcRect);
+[[nodiscard]] inline QImage colorizeImage(
+		const QImage &src,
+		const QColor &color,
+		QRect srcRect = QRect()) {
+	if (srcRect.isNull()) {
+		srcRect = src.rect();
+	}
+	auto result = QImage(
+		srcRect.size(),
+		QImage::Format_ARGB32_Premultiplied);
+	colorizeImage(src, color, &result, srcRect);
 	return result;
 }
 
-inline QImage colorizeImage(const QImage &src, const color &c, QRect srcRect = QRect()) {
-	return colorizeImage(src, c->c, srcRect);
+[[nodiscard]] inline QImage colorizeImage(
+		const QImage &src,
+		const color &color,
+		QRect srcRect = QRect()) {
+	return colorizeImage(src, color->c, srcRect);
 }
 
 [[nodiscard]] QImage TransparentPlaceholder();

ui/text/custom_emoji_instance.cpp

@@ -37,14 +37,14 @@ void PaintScaledImage(
 		const QRect &target,
 		const Cache::Frame &frame,
 		const Context &context) {
-	const auto colored = context.colored;
-	const auto cache = colored ? &colored->cache : nullptr;
+	static QImage PaintCache;
+	const auto cache = context.internal.colorized ? &PaintCache : nullptr;
 	auto q = std::optional<QPainter>();
-	if (colored) {
+	if (cache) {
 		const auto ratio = style::DevicePixelRatio();
 		if (cache->width() < target.width() * ratio
 			|| cache->height() < target.height() * ratio) {
-			colored->cache = QImage(
+			*cache = QImage(
 				std::max(cache->width(), target.width() * ratio),
 				std::max(cache->height(), target.height() * ratio),
 				QImage::Format_ARGB32_Premultiplied);
@@ -52,7 +52,9 @@ void PaintScaledImage(
 		}
 		q.emplace(cache);
 		q->setCompositionMode(QPainter::CompositionMode_Source);
-		q->fillRect(QRect(QPoint(), target.size()), Qt::transparent);
+		if (context.scaled) {
+			q->fillRect(QRect(QPoint(), target.size()), Qt::transparent);
+		}
 		q->translate(-target.topLeft());
 	}
 	const auto to = q ? &*q : &p;
@@ -79,7 +81,8 @@ void PaintScaledImage(
 		q.reset();
 		const auto ratio = style::DevicePixelRatio();
 		const auto source = QRect(QPoint(), target.size() * ratio);
-		style::colorizeImage(*cache, colored->color, cache, source);
+		const auto &color = context.textColor;
+		style::colorizeImage(*cache, color, cache, source, {}, true);
 		p.drawImage(target, *cache, source);
 	}
 }
@@ -128,7 +131,9 @@ void Preview::paintPath(
 		const Context &context,
 		const ScaledPath &path) {
 	auto hq = PainterHighQualityEnabler(p);
-	p.setBrush(context.preview);
+	auto copy = context.textColor.value();
+	copy.setAlpha((copy.alpha() + 1) / 8);
+	p.setBrush(copy);
 	p.setPen(Qt::NoPen);
 	const auto scale = path.scale;
 	const auto required = (scale != 1.) || context.scaled;
@@ -374,7 +379,7 @@ PaintFrameResult Cache::paintCurrentFrame(
 	if (!_frames) {
 		return {};
 	}
-	const auto first = context.firstFrameOnly;
+	const auto first = context.internal.forceFirstFrame;
 	if (!first) {
 		const auto now = context.paused ? 0 : context.now;
 		const auto finishes = now ? currentFrameFinishes() : 0;
@@ -657,9 +662,8 @@ QString Instance::entityData() const {
 }
 
 void Instance::paint(QPainter &p, const Context &context) {
-	const auto colored = (context.colored && !_colored)
-		? base::take(context.colored)
-		: nullptr;
+	context.internal.colorized = _colored;
+
 	v::match(_state, [&](Loading &state) {
 		state.paint(p, context);
 		load(state);
@@ -684,9 +688,6 @@ void Instance::paint(QPainter &p, const Context &context) {
 			_repaintLater(this, { result.next, result.duration });
 		}
 	});
-	if (colored) {
-		context.colored = colored;
-	}
 }
 
 bool Instance::ready() {

ui/text/text_custom_emoji.cpp

@@ -50,9 +50,10 @@ QString FirstFrameEmoji::entityData() {
 }
 
 void FirstFrameEmoji::paint(QPainter &p, const Context &context) {
-	auto copy = context;
-	copy.firstFrameOnly = true;
-	_wrapped->paint(p, copy);
+	const auto was = context.internal.forceFirstFrame;
+	context.internal.forceFirstFrame = true;
+	_wrapped->paint(p, context);
+	context.internal.forceFirstFrame = was;
 }
 
 void FirstFrameEmoji::unload() {
@@ -90,10 +91,10 @@ void LimitedLoopsEmoji::paint(QPainter &p, const Context &context) {
 		}
 	}
 	if (_played == _limit) {
-		const auto was = context.firstFrameOnly;
-		context.firstFrameOnly = true;
+		const auto was = context.internal.forceFirstFrame;
+		context.internal.forceFirstFrame = true;
 		_wrapped->paint(p, context);
-		context.firstFrameOnly = was;
+		context.internal.forceFirstFrame = was;
 	} else {
 		_wrapped->paint(p, context);
 	}

ui/text/text_custom_emoji.h

@@ -19,21 +19,19 @@ namespace Ui::Text {
 
 [[nodiscard]] int AdjustCustomEmojiSize(int emojiSize);
 
-struct CustomEmojiColored {
-	QColor color;
-	QImage cache;
-};
-
 struct CustomEmojiPaintContext {
-	QColor preview;
-	mutable CustomEmojiColored *colored = nullptr;
+	required<QColor> textColor;
 	QSize size; // Required only when scaled = true, for path scaling.
 	crl::time now = 0;
 	float64 scale = 0.;
 	QPoint position;
-	mutable bool firstFrameOnly = false;
 	bool paused = false;
 	bool scaled = false;
+
+	mutable struct {
+		bool colorized = false;
+		bool forceFirstFrame = false;
+	} internal;
 };
 
 class CustomEmoji {

ui/text/text_renderer.cpp

@@ -827,16 +827,27 @@ bool Renderer::drawLine(uint16 _lineEnd, const String::TextBlocks::const_iterato
 							x,
 							y);
 					} else if (const auto custom = static_cast<const CustomEmojiBlock*>(currentBlock)->_custom.get()) {
+						const auto selected = (fillSelect.from <= glyphX)
+							&& (fillSelect.till > glyphX);
+						const auto color = (selected
+							? _currentPenSelected
+							: _currentPen)->color();
 						if (!_customEmojiSize) {
 							_customEmojiSize = AdjustCustomEmojiSize(st::emojiSize);
 							_customEmojiSkip = (st::emojiSize - _customEmojiSize) / 2;
+							_customEmojiContext = CustomEmoji::Context{
+								.textColor = color,
+								.now = now(),
+								.paused = _paused,
+							};
+						} else {
+							_customEmojiContext->textColor = color;
 						}
-						custom->paint(*_p, {
-							.preview = _palette->spoilerFg->c,
-							.now = now(),
-							.position = { x + _customEmojiSkip, y + _customEmojiSkip },
-							.paused = _paused,
-						});
+						_customEmojiContext->position = {
+							x + _customEmojiSkip,
+							y + _customEmojiSkip,
+						};
+						custom->paint(*_p, *_customEmojiContext);
 					}
 					if (hasSpoiler) {
 						_p->setOpacity(opacity);

ui/text/text_renderer.h

@@ -141,6 +141,7 @@ private:
 	QVarLengthArray<QRect, kSpoilersRectsSize> _spoilerRects;
 	QVarLengthArray<QRect, kSpoilersRectsSize> _spoilerSelectedRects;
 
+	std::optional<CustomEmoji::Context> _customEmojiContext;
 	int _customEmojiSize = 0;
 	int _customEmojiSkip = 0;
 	int _indexOfElidedBlock = -1; // For spoilers.

ui/widgets/input_fields.cpp

@@ -1126,7 +1126,7 @@ void CustomEmojiObject::drawObject(
 		return;
 	}
 	i->second->paint(*painter, {
-		.preview = st::windowBgRipple->c,
+		.textColor = format.foreground().color(),
 		.now = _now,
 		.position = QPoint(
 			int(base::SafeRound(rect.x())) + st::emojiPadding + _skip,