Support quote icon in blockquote.

ui/basic.style

@@ -19,17 +19,24 @@ TextPalette {
 	linkAlwaysActive: bool;
 }
 
+ParagraphStyle {
+	padding: margins;
+	verticalSkip: pixels;
+	header: pixels;
+	headerPosition: point;
+	icon: icon;
+	iconPosition: point;
+	outline: pixels;
+	radius: pixels;
+	scrollable: bool;
+}
+
 TextStyle {
 	font: font;
 	linkUnderline: int;
-	blockPadding: margins;
-	blockVerticalSkip: pixels;
-	blockHeader: pixels;
-	blockHeaderPosition: point;
-	blockOutline: pixels;
-	blockRadius: pixels;
-	preScrollable: bool;
 	lineHeight: pixels;
+	blockquote: ParagraphStyle;
+	pre: ParagraphStyle;
 }
 
 kLinkUnderlineNever: 0;
@@ -58,10 +65,14 @@ defaultTextPalette: TextPalette {
 	selectSpoilerFg: msgInDateFgSelected;
 	selectOverlay: msgSelectOverlay;
 }
+defaultParagraphStyle: ParagraphStyle {
+}
 defaultTextStyle: TextStyle {
 	font: normalFont;
 	linkUnderline: kLinkUnderlineActive;
 	lineHeight: 0px;
+	blockquote: defaultParagraphStyle;
+	pre: defaultParagraphStyle;
 }
 semiboldTextStyle: TextStyle(defaultTextStyle) {
 	font: semiboldFont;

ui/text/text.cpp

@@ -185,29 +185,34 @@ GeometryDescriptor SimpleGeometry(
 	}
 };
 
-
 void ValidateBlockPaintCache(
 		BlockPaintCache &cache,
-		const style::TextStyle &st) {
+		const style::ParagraphStyle &st) {
+	const auto icon = st.icon.empty() ? nullptr : &st.icon;
 	if (!cache.corners.isNull()
 		&& cache.bgCached == cache.bg
 		&& cache.outlineCached == cache.outline
-		&& (!cache.withHeader || cache.headerCached == cache.header)
+		&& (!st.header || cache.headerCached == cache.header)
-		&& (!cache.topright || cache.iconCached == cache.icon)) {
+		&& (!icon || cache.iconCached == cache.icon)) {
 		return;
 	}
 	cache.bgCached = cache.bg;
 	cache.outlineCached = cache.outline;
-	if (cache.withHeader) {
+	if (st.header) {
 		cache.headerCached = cache.header;
 	}
-	if (cache.topright) {
+	if (!st.icon.empty()) {
 		cache.iconCached = cache.icon;
 	}
-	const auto radius = st.blockRadius;
+	const auto radius = st.radius;
-	const auto header = cache.withHeader ? st.blockHeader : 0;
+	const auto header = st.header;
-	const auto outline = st.blockOutline;
+	const auto outline = st.outline;
-	const auto corner = std::max({ header, radius, outline });
+	const auto iconsize = icon
+		? std::max(
+			icon->width() + st.iconPosition.x(),
+			icon->height() + st.iconPosition.y())
+		: 0;
+	const auto corner = std::max({ header, radius, outline, iconsize });
 	const auto middle = st::lineWidth;
 	const auto side = 2 * corner + middle;
 	const auto full = QSize(side, side);
@@ -233,6 +238,11 @@ void ValidateBlockPaintCache(
 	p.setBrush(cache.bg);
 	p.setClipRect(outline, header, side - outline, side - header);
 	p.drawRoundedRect(0, 0, side, side, radius, radius);
+	if (icon) {
+		const auto left = side - icon->width() - st.iconPosition.x();
+		const auto top = st.iconPosition.y();
+		icon->paint(p, left, top, side, cache.icon);
+	}
 
 	p.end();
 	cache.corners = std::move(image);
@@ -242,7 +252,7 @@ void FillBlockPaint(
 		QPainter &p,
 		QRect rect,
 		const BlockPaintCache &cache,
-		const style::TextStyle &st,
+		const style::ParagraphStyle &st,
 		SkipBlockPaintParts parts) {
 	const auto &image = cache.corners;
 	const auto ratio = int(image.devicePixelRatio());
@@ -265,7 +275,7 @@ void FillBlockPaint(
 			image,
 			QRect((iwidth - ihalf) * ratio, 0, ihalf * ratio, top * ratio));
 		if (const auto middle = width - 2 * ihalf) {
-			const auto header = cache.withHeader ? st.blockHeader : 0;
+			const auto header = st.header;
 			const auto fillHeader = std::min(header, top);
 			if (fillHeader) {
 				p.fillRect(x + ihalf, y, middle, fillHeader, cache.header);
@@ -316,7 +326,7 @@ void FillBlockPaint(
 		}
 		rect.setHeight(height);
 	}
-	const auto outline = st.blockOutline;
+	const auto outline = st.outline;
 	if (outline) {
 		p.fillRect(x, y, outline, height, cache.outline);
 	}
@@ -1086,9 +1096,10 @@ QMargins String::paragraphPadding(ParagraphDetails *info) const {
 	if (!info) {
 		return {};
 	}
-	const auto skip = _st->blockVerticalSkip;
+	const auto &st = info->pre ? _st->pre : _st->blockquote;
-	const auto top = info->pre ? _st->blockHeader : 0;
+	const auto skip = st.verticalSkip;
-	return _st->blockPadding + QMargins(0, top + skip, 0, skip);
+	const auto top = st.header;
+	return st.padding + QMargins(0, top + skip, 0, skip);
 }
 
 template <

ui/text/text.h

@@ -24,6 +24,7 @@ enum class type : uchar;
 namespace style {
 struct TextStyle;
 struct TextPalette;
+struct ParagraphStyle;
 } // namespace style
 
 namespace Ui {
@@ -175,15 +176,11 @@ struct BlockPaintCache {
 	QColor bg;
 	QColor outline;
 	QColor icon;
-
-	const style::icon *topright = nullptr;
-	QPoint toprightPosition;
-	bool withHeader = false;
 };
 
 void ValidateBlockPaintCache(
 	BlockPaintCache &cache,
-	const style::TextStyle &st);
+	const style::ParagraphStyle &st);
 
 struct SkipBlockPaintParts {
 	bool skipTop : 1 = false;
@@ -193,7 +190,7 @@ void FillBlockPaint(
 	QPainter &p,
 	QRect rect,
 	const BlockPaintCache &cache,
-	const style::TextStyle &st,
+	const style::ParagraphStyle &st,
 	SkipBlockPaintParts parts = {});
 
 struct PaintContext {

ui/text/text_renderer.cpp

@@ -415,29 +415,32 @@ void Renderer::fillParagraphBg(int paddingBottom) {
 		? _blockquoteBlockCache
 		: nullptr;
 	if (cache) {
+		const auto &st = _paragraph->pre
+			? _t->_st->pre
+			: _t->_st->blockquote;
 		auto &valid = _paragraph->pre
 			? _preBlockCacheValid
 			: _blockquoteBlockCacheValid;
 		if (!valid) {
 			valid = true;
-			ValidateBlockPaintCache(*cache, *_t->_st);
+			ValidateBlockPaintCache(*cache, st);
 		}
-		const auto skip = _t->_st->blockVerticalSkip;
+		const auto skip = st.verticalSkip;
 		const auto isTop = (_y != _blockLineTop);
 		const auto isBottom = (paddingBottom != 0);
 		const auto top = _blockLineTop + (isTop ? skip : 0);
 		const auto fill = _y + _lineHeight + paddingBottom - top
 			- (isBottom ? skip : 0);
 		const auto rect = QRect(_startLeft, top, _startLineWidth, fill);
-		FillBlockPaint(*_p, rect, *cache, *_t->_st, {
+		FillBlockPaint(*_p, rect, *cache, st, {
 			.skipTop = !isTop,
 			.skipBottom = !isBottom,
 		});
 
-		if (isTop && cache->withHeader) {
+		if (isTop && st.header > 0) {
 			const auto font = _t->_st->font->monospace();
 			const auto topleft = rect.topLeft();
-			const auto position = topleft + _t->_st->blockHeaderPosition;
+			const auto position = topleft + st.headerPosition;
 			const auto baseline = position + QPoint(0, font->ascent);
 			_p->setFont(font);
 			_p->setPen(_palette->monoFg->p);