Use HistoryView::Object in BottomInfo.

Telegram/SourceFiles/history/view/history_view_bottom_info.cpp

@@ -33,25 +33,17 @@ void BottomInfo::update(Data &&data, Context &&context, int availableWidth) {
 	_data = std::move(data);
 	_context = std::move(context);
 	layout();
-	if (!_size.isEmpty()) {
-		resizeToWidth(std::min(optimalSize().width(), availableWidth));
+	if (width() > 0) {
+		resizeGetHeight(std::min(maxWidth(), availableWidth));
 	}
 }
 
-QSize BottomInfo::optimalSize() const {
-	return _optimalSize;
-}
-
-QSize BottomInfo::size() const {
-	return _size;
-}
-
 int BottomInfo::firstLineWidth() const {
-	if (_size.height() == _optimalSize.height()) {
-		return _size.width();
+	if (height() == minHeight()) {
+		return width();
 	}
 	const auto reactionsWidth = _reactions.maxWidth();
-	const auto noReactionsWidth = _optimalSize.width()
+	const auto noReactionsWidth = maxWidth()
 		- st::historyReactionsSkip
 		- reactionsWidth;
 	return noReactionsWidth;
@@ -63,24 +55,24 @@ TextState BottomInfo::textState(
 	auto result = TextState(item);
 	if (!_reactions.isEmpty()) {
 		const auto reactionsPosition = [&] {
-			if (_size.height() == _optimalSize.height()) {
+			if (height() == minHeight()) {
 				return QPoint(0, 0);
 			}
-			const auto available = _size.width();
+			const auto available = width();
 			const auto use = std::min(available, _reactions.maxWidth());
-			return QPoint(_size.width() - use, st::msgDateFont->height);
+			return QPoint(width() - use, st::msgDateFont->height);
 		}();
 		const auto state = _reactions.getStateLeft(
 			position - reactionsPosition,
-			std::min(_size.width(), _reactions.maxWidth()),
-			_size.width());
+			std::min(width(), _reactions.maxWidth()),
+			width());
 		if (state.uponSymbol) {
 			result.link = _context.reactions;
 			return result;
 		}
 	}
 	const auto inTime = QRect(
-		_size.width() - _dateWidth,
+		width() - _dateWidth,
 		0,
 		_dateWidth,
 		st::msgDateFont->height
@@ -106,7 +98,7 @@ void BottomInfo::paint(
 	const auto sti = context.imageStyle();
 	const auto stm = context.messageStyle();
 
-	auto right = position.x() + _size.width();
+	auto right = position.x() + width();
 	const auto firstLineBottom = position.y() + st::msgDateFont->height;
 	if (_data.flags & Data::Flag::OutLayout) {
 		const auto &icon = (_data.flags & Data::Flag::Sending)
@@ -177,7 +169,7 @@ void BottomInfo::paint(
 			outerWidth);
 	}
 	if (!_reactions.isEmpty()) {
-		if (_size.height() == _optimalSize.height()) {
+		if (height() == minHeight()) {
 			_reactions.drawLeft(
 				p,
 				position.x(),
@@ -185,11 +177,11 @@ void BottomInfo::paint(
 				_reactions.maxWidth(),
 				outerWidth);
 		} else {
-			const auto available = _size.width();
+			const auto available = width();
 			const auto use = std::min(available, _reactions.maxWidth());
 			_reactions.drawLeft(
 				p,
-				position.x() + _size.width() - use,
+				position.x() + width() - use,
 				position.y() + st::msgDateFont->height,
 				use,
 				outerWidth);
@@ -197,20 +189,18 @@ void BottomInfo::paint(
 	}
 }
 
-int BottomInfo::resizeToWidth(int newWidth) {
-	if (newWidth >= _optimalSize.width()) {
-		_size = _optimalSize;
-	} else {
-		const auto reactionsWidth = _reactions.maxWidth();
-		const auto noReactionsWidth = _optimalSize.width()
-			- st::historyReactionsSkip
-			- reactionsWidth;
-		accumulate_min(newWidth, std::max(noReactionsWidth, reactionsWidth));
-		_size = QSize(
-			newWidth,
-			st::msgDateFont->height + _reactions.countHeight(newWidth));
+QSize BottomInfo::countCurrentSize(int newWidth) {
+	if (newWidth >= maxWidth()) {
+		return optimalSize();
 	}
-	return _size.height();
+	const auto reactionsWidth = _reactions.maxWidth();
+	const auto noReactionsWidth = maxWidth()
+		- st::historyReactionsSkip
+		- reactionsWidth;
+	accumulate_min(newWidth, std::max(noReactionsWidth, reactionsWidth));
+	return QSize(
+		newWidth,
+		st::msgDateFont->height + _reactions.countHeight(newWidth));
 }
 
 void BottomInfo::layout() {
@@ -218,7 +208,7 @@ void BottomInfo::layout() {
 	layoutViewsText();
 	layoutRepliesText();
 	layoutReactionsText();
-	countOptimalSize();
+	initDimensions();
 }
 
 void BottomInfo::layoutDateText() {
@@ -304,7 +294,7 @@ void BottomInfo::layoutReactionsText() {
 		Ui::NameTextOptions());
 }
 
-void BottomInfo::countOptimalSize() {
+QSize BottomInfo::countOptimalSize() {
 	auto width = 0;
 	if (_data.flags & (Data::Flag::OutLayout | Data::Flag::Sending)) {
 		width += st::historySendStateSpace;
@@ -323,7 +313,7 @@ void BottomInfo::countOptimalSize() {
 	if (!_reactions.isEmpty()) {
 		width += st::historyReactionsSkip + _reactions.maxWidth();
 	}
-	_optimalSize = QSize(width, st::msgDateFont->height);
+	return QSize(width, st::msgDateFont->height);
 }
 
 BottomInfo::Data BottomInfoDataFromMessage(not_null<Message*> message) {

Telegram/SourceFiles/history/view/history_view_bottom_info.h

@@ -7,6 +7,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #pragma once
 
+#include "history/view/history_view_object.h"
 #include "ui/text/text.h"
 #include "base/flags.h"
 
@@ -21,7 +22,7 @@ using PaintContext = Ui::ChatPaintContext;
 class Message;
 struct TextState;
 
-class BottomInfo {
+class BottomInfo final : public Object {
 public:
 	struct Data {
 		enum class Flag {
@@ -50,8 +51,6 @@ public:
 
 	void update(Data &&data, Context &&context, int availableWidth);
 
-	[[nodiscard]] QSize optimalSize() const;
-	[[nodiscard]] QSize size() const;
 	[[nodiscard]] int firstLineWidth() const;
 	[[nodiscard]] TextState textState(
 		not_null<const HistoryItem*> item,
@@ -66,20 +65,18 @@ public:
 		bool inverted,
 		const PaintContext &context) const;
 
-	int resizeToWidth(int newWidth);
-
 private:
 	void layout();
 	void layoutDateText();
 	void layoutViewsText();
 	void layoutRepliesText();
 	void layoutReactionsText();
-	void countOptimalSize();
+
+	QSize countOptimalSize() override;
+	QSize countCurrentSize(int newWidth) override;
 
 	Data _data;
 	Context _context;
-	QSize _optimalSize;
-	QSize _size;
 	Ui::Text::String _authorEditedDate;
 	Ui::Text::String _views;
 	Ui::Text::String _replies;

Telegram/SourceFiles/history/view/history_view_message.cpp

@@ -610,7 +610,7 @@ void Message::draw(Painter &p, const PaintContext &context) const {
 		auto trect = inner.marginsRemoved(st::msgPadding);
 		if (_viewButton) {
 			const auto belowInfo = _viewButton->belowMessageInfo();
-			const auto infoHeight = _bottomInfo.size().height();
+			const auto infoHeight = _bottomInfo.height();
 			const auto heightMargins = QMargins(0, 0, 0, infoHeight);
 			_viewButton->draw(
 				p,
@@ -642,7 +642,8 @@ void Message::draw(Painter &p, const PaintContext &context) const {
 			trect.setHeight(trect.height() - entry->height());
 		}
 		if (needDrawInfo) {
-			trect.setHeight(trect.height() - (_bottomInfo.size().height() - st::msgDateFont->height));
+			trect.setHeight(trect.height()
+				- (_bottomInfo.height() - st::msgDateFont->height));
 		}
 		paintText(p, trect, context);
 		if (mediaDisplayed) {
@@ -1219,7 +1220,7 @@ TextState Message::textState(
 		}
 		if (_viewButton) {
 			const auto belowInfo = _viewButton->belowMessageInfo();
-			const auto infoHeight = _bottomInfo.size().height();
+			const auto infoHeight = _bottomInfo.height();
 			const auto heightMargins = QMargins(0, 0, 0, infoHeight);
 			if (_viewButton->getState(
 					point,
@@ -1765,7 +1766,7 @@ void Message::drawInfo(
 	break;
 	}
 
-	const auto size = _bottomInfo.size();
+	const auto size = _bottomInfo.currentSize();
 	const auto dateX = infoRight - size.width();
 	const auto dateY = infoBottom - size.height();
 	if (type == InfoDisplayType::Image) {
@@ -1807,7 +1808,7 @@ TextState Message::bottomInfoTextState(
 		infoBottom -= st::msgDateImgPadding.y();
 		break;
 	}
-	const auto size = _bottomInfo.size();
+	const auto size = _bottomInfo.currentSize();
 	const auto infoLeft = infoRight - size.width();
 	const auto infoTop = infoBottom - size.height();
 	return _bottomInfo.textState(
@@ -1828,12 +1829,13 @@ bool Message::isSignedAuthorElided() const {
 }
 
 void Message::itemDataChanged() {
-	const auto was = _bottomInfo.size();
+	const auto wasInfo = _bottomInfo.currentSize();
 	_bottomInfo.update(
 		BottomInfoDataFromMessage(this),
 		BottomInfoContextFromMessage(this),
 		width());
-	if (was != _bottomInfo.size()) {
+	const auto nowInfo = _bottomInfo.currentSize();
+	if (wasInfo != nowInfo) {
 		history()->owner().requestViewResize(this);
 	} else {
 		history()->owner().requestViewRepaint(this);
@@ -2488,7 +2490,7 @@ int Message::resizeContentGetHeight(int newWidth) {
 			}
 		}
 	}
-	const auto bottomInfoHeight = _bottomInfo.resizeToWidth(
+	const auto bottomInfoHeight = _bottomInfo.resizeGetHeight(
 		std::min(
 			_bottomInfo.optimalSize().width(),
 			contentWidth - st::msgPadding.left() - st::msgPadding.right() - 2 * st::msgDateDelta.x()));

Telegram/SourceFiles/history/view/history_view_object.h

@@ -23,16 +23,23 @@ public:
 		return _height;
 	}
 
-	int maxWidth() const {
+	[[nodiscard]] QSize optimalSize() const {
+		return { _maxWidth, _minHeight };
+	}
+	[[nodiscard]] QSize currentSize() const {
+		return { _width, _height };
+	}
+
+	[[nodiscard]] int maxWidth() const {
 		return _maxWidth;
 	}
-	int minHeight() const {
+	[[nodiscard]] int minHeight() const {
 		return _minHeight;
 	}
-	int width() const {
+	[[nodiscard]] int width() const {
 		return _width;
 	}
-	int height() const {
+	[[nodiscard]] int height() const {
 		return _height;
 	}