Add an experimental "small message radius" toggle. This toggle allows switching to the pre-4.3.0, smaller message bubble radius after an app restart. The message bubble radius styles now have to be referenced via the Ui::BubbleRadius* and Ui::MsgFileThumbRadius* wrappers to use the appropriate value.
		
			
				
	
	
		
			460 lines
		
	
	
	
		
			12 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			460 lines
		
	
	
	
		
			12 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "ui/chat/message_bubble.h"
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#include "ui/cached_round_corners.h"
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#include "ui/image/image_prepare.h"
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#include "ui/chat/chat_style.h"
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#include "styles/style_chat.h"
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namespace Ui {
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namespace {
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using Corner = BubbleCornerRounding;
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template <
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	typename FillBg, // fillBg(QRect rect)
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	typename FillSh, // fillSh(QRect rect)
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	typename FillCorner, // fillCorner(int x, int y, int index, Corner size)
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	typename PaintTail> // paintTail(QPoint bottomPosition) -> tailWidth
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void PaintBubbleGeneric(
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		const SimpleBubble &args,
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		FillBg &&fillBg,
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		FillSh &&fillSh,
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		FillCorner &&fillCorner,
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		PaintTail &&paintTail) {
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	using namespace Images;
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	const auto topLeft = args.rounding.topLeft;
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	const auto topRight = args.rounding.topRight;
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	const auto bottomWithTailLeft = args.rounding.bottomLeft;
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	const auto bottomWithTailRight = args.rounding.bottomRight;
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	if (topLeft == Corner::None
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		&& topRight == Corner::None
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		&& bottomWithTailLeft == Corner::None
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		&& bottomWithTailRight == Corner::None) {
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		fillBg(args.geometry);
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		return;
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	}
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	const auto bottomLeft = (bottomWithTailLeft == Corner::Tail)
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		? Corner::None
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		: bottomWithTailLeft;
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	const auto bottomRight = (bottomWithTailRight == Corner::Tail)
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		? Corner::None
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		: bottomWithTailRight;
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	const auto rect = args.geometry;
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	const auto small = BubbleRadiusSmall();
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	const auto large = BubbleRadiusLarge();
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	const auto cornerSize = [&](Corner corner) {
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		return (corner == Corner::Large)
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			? large
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			: (corner == Corner::Small)
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			? small
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			: 0;
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	};
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	const auto verticalSkip = [&](Corner left, Corner right) {
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		return std::max(cornerSize(left), cornerSize(right));
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	};
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	const auto top = verticalSkip(topLeft, topRight);
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	const auto bottom = verticalSkip(bottomLeft, bottomRight);
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	if (top) {
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		const auto left = cornerSize(topLeft);
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		const auto right = cornerSize(topRight);
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		if (left) {
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			fillCorner(rect.left(), rect.top(), kTopLeft, topLeft);
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			if (const auto add = top - left) {
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				fillBg({ rect.left(), rect.top() + left, left, add });
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			}
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		}
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		if (const auto fill = rect.width() - left - right; fill > 0) {
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			fillBg({ rect.left() + left, rect.top(), fill, top });
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		}
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		if (right) {
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			fillCorner(
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				rect.left() + rect.width() - right,
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				rect.top(),
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				kTopRight,
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				topRight);
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			if (const auto add = top - right) {
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				fillBg({
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					rect.left() + rect.width() - right,
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					rect.top() + right,
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					right,
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					add,
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				});
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			}
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		}
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	}
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	if (const auto fill = rect.height() - top - bottom; fill > 0) {
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		fillBg({ rect.left(), rect.top() + top, rect.width(), fill });
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	}
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	if (bottom) {
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		const auto left = cornerSize(bottomLeft);
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		const auto right = cornerSize(bottomRight);
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		if (left) {
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			fillCorner(
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				rect.left(),
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				rect.top() + rect.height() - left,
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				kBottomLeft,
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				bottomLeft);
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			if (const auto add = bottom - left) {
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				fillBg({
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					rect.left(),
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					rect.top() + rect.height() - bottom,
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					left,
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					add,
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				});
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			}
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		}
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		if (const auto fill = rect.width() - left - right; fill > 0) {
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			fillBg({
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				rect.left() + left,
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				rect.top() + rect.height() - bottom,
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				fill,
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				bottom,
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			});
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		}
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		if (right) {
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			fillCorner(
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				rect.left() + rect.width() - right,
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				rect.top() + rect.height() - right,
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				kBottomRight,
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				bottomRight);
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			if (const auto add = bottom - right) {
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				fillBg({
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					rect.left() + rect.width() - right,
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					rect.top() + rect.height() - bottom,
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					right,
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					add,
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				});
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			}
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		}
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	}
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	const auto leftTail = (bottomWithTailLeft == Corner::Tail)
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		? paintTail({ rect.x(), rect.y() + rect.height() })
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		: 0;
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	const auto rightTail = (bottomWithTailRight == Corner::Tail)
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		? paintTail({ rect.x() + rect.width(), rect.y() + rect.height() })
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		: 0;
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	if (!args.shadowed) {
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		return;
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	}
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	const auto shLeft = rect.x() + cornerSize(bottomLeft) - leftTail;
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	const auto shWidth = rect.x()
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		+ rect.width()
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		- cornerSize(bottomRight)
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		+ rightTail
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		- shLeft;
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	if (shWidth > 0) {
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		fillSh({ shLeft, rect.y() + rect.height(), shWidth, st::msgShadow });
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	}
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}
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void PaintPatternBubble(QPainter &p, const SimpleBubble &args) {
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	const auto opacity = args.st->msgOutBg()->c.alphaF();
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	const auto shadowOpacity = opacity * args.st->msgOutShadow()->c.alphaF();
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	const auto pattern = args.pattern;
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	const auto &tail = (args.rounding.bottomRight == Corner::Tail)
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		? pattern->tailRight
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		: pattern->tailLeft;
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	const auto tailShift = (args.rounding.bottomRight == Corner::Tail
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		? QPoint(0, tail.height())
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		: QPoint(tail.width(), tail.height())) / int(tail.devicePixelRatio());
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	const auto fillBg = [&](const QRect &rect) {
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		const auto fill = rect.intersected(args.patternViewport);
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		if (!fill.isEmpty()) {
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			PaintPatternBubblePart(
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				p,
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				args.patternViewport,
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				pattern->pixmap,
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				fill);
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		}
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	};
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	const auto fillSh = [&](const QRect &rect) {
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		p.setOpacity(shadowOpacity);
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		fillBg(rect);
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		p.setOpacity(opacity);
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	};
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	const auto fillPattern = [&](
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			int x,
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			int y,
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			const QImage &mask,
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			QImage &cache) {
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		PaintPatternBubblePart(
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			p,
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			args.patternViewport,
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			pattern->pixmap,
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			QRect(QPoint(x, y), mask.size() / int(mask.devicePixelRatio())),
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			mask,
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			cache);
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	};
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	const auto fillCorner = [&](int x, int y, int index, Corner size) {
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		auto &corner = (size == Corner::Large)
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			? pattern->cornersLarge[index]
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			: pattern->cornersSmall[index];
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		auto &cache = (size == Corner::Large)
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			? (index < 2
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				? pattern->cornerTopLargeCache
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				: pattern->cornerBottomLargeCache)
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			: (index < 2
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				? pattern->cornerTopSmallCache
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				: pattern->cornerBottomSmallCache);
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		fillPattern(x, y, corner, cache);
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	};
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	const auto paintTail = [&](QPoint bottomPosition) {
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		const auto position = bottomPosition - tailShift;
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		fillPattern(position.x(), position.y(), tail, pattern->tailCache);
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		return tail.width() / int(tail.devicePixelRatio());
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	};
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	p.setOpacity(opacity);
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	PaintBubbleGeneric(args, fillBg, fillSh, fillCorner, paintTail);
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	p.setOpacity(1.);
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}
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void PaintSolidBubble(QPainter &p, const SimpleBubble &args) {
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	const auto &st = args.st->messageStyle(args.outbg, args.selected);
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	const auto &bg = st.msgBg;
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	const auto sh = (args.rounding.bottomRight == Corner::None)
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		? nullptr
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		: &st.msgShadow;
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	const auto &tail = (args.rounding.bottomRight == Corner::Tail)
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		? st.tailRight
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		: st.tailLeft;
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	const auto tailShift = (args.rounding.bottomRight == Corner::Tail)
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		? QPoint(0, tail.height())
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		: QPoint(tail.width(), tail.height());
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	PaintBubbleGeneric(args, [&](const QRect &rect) {
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		p.fillRect(rect, bg);
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	}, [&](const QRect &rect) {
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		p.fillRect(rect, *sh);
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	}, [&](int x, int y, int index, Corner size) {
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		auto &corners = (size == Corner::Large)
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			? st.msgBgCornersLarge
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			: st.msgBgCornersSmall;
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		p.drawPixmap(x, y, corners.p[index]);
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	}, [&](const QPoint &bottomPosition) {
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		tail.paint(p, bottomPosition - tailShift, args.outerWidth);
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		return tail.width();
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	});
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}
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} // namespace
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std::unique_ptr<BubblePattern> PrepareBubblePattern(
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		not_null<const style::palette*> st) {
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	auto result = std::make_unique<Ui::BubblePattern>();
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	result->cornersSmall = Images::CornersMask(BubbleRadiusSmall());
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	result->cornersLarge = Images::CornersMask(BubbleRadiusLarge());
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	const auto addShadow = [&](QImage &bottomCorner) {
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		auto result = QImage(
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			bottomCorner.width(),
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			(bottomCorner.height()
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				+ st::msgShadow * int(bottomCorner.devicePixelRatio())),
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			QImage::Format_ARGB32_Premultiplied);
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		result.fill(Qt::transparent);
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		result.setDevicePixelRatio(bottomCorner.devicePixelRatio());
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		auto p = QPainter(&result);
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		p.setOpacity(st->msgInShadow()->c.alphaF());
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		p.drawImage(0, st::msgShadow, bottomCorner);
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		p.setOpacity(1.);
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		p.drawImage(0, 0, bottomCorner);
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		p.end();
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		bottomCorner = std::move(result);
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	};
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	addShadow(result->cornersSmall[2]);
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	addShadow(result->cornersSmall[3]);
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	result->cornerTopSmallCache = QImage(
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		result->cornersSmall[0].size(),
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		QImage::Format_ARGB32_Premultiplied);
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	result->cornerTopLargeCache = QImage(
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		result->cornersLarge[0].size(),
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		QImage::Format_ARGB32_Premultiplied);
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	result->cornerBottomSmallCache = QImage(
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		result->cornersSmall[2].size(),
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		QImage::Format_ARGB32_Premultiplied);
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	result->cornerBottomLargeCache = QImage(
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		result->cornersLarge[2].size(),
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		QImage::Format_ARGB32_Premultiplied);
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	return result;
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}
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void FinishBubblePatternOnMain(not_null<BubblePattern*> pattern) {
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	pattern->tailLeft = st::historyBubbleTailOutLeft.instance(Qt::white);
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	pattern->tailRight = st::historyBubbleTailOutRight.instance(Qt::white);
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	pattern->tailCache = QImage(
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		pattern->tailLeft.size(),
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		QImage::Format_ARGB32_Premultiplied);
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}
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void PaintBubble(QPainter &p, const SimpleBubble &args) {
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	if (!args.selected
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		&& args.outbg
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		&& args.pattern
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		&& !args.patternViewport.isEmpty()
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		&& !args.pattern->pixmap.size().isEmpty()) {
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		PaintPatternBubble(p, args);
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	} else {
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		PaintSolidBubble(p, args);
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	}
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}
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void PaintBubble(QPainter &p, const ComplexBubble &args) {
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	if (args.selection.empty()) {
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		PaintBubble(p, args.simple);
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		return;
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	}
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	const auto rect = args.simple.geometry;
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	const auto left = rect.x();
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	const auto width = rect.width();
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	const auto top = rect.y();
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	const auto bottom = top + rect.height();
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	const auto paintOne = [&](
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			QRect geometry,
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			bool selected,
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			bool fromTop,
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			bool tillBottom) {
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		auto simple = args.simple;
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		simple.geometry = geometry;
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		simple.selected = selected;
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		if (!fromTop) {
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			simple.rounding.topLeft
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				= simple.rounding.topRight
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				= Corner::None;
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		}
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		if (!tillBottom) {
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			simple.rounding.bottomLeft
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				= simple.rounding.bottomRight
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				= Corner::None;
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			simple.shadowed = false;
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		}
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		PaintBubble(p, simple);
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	};
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	auto from = top;
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	for (const auto &selected : args.selection) {
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		if (selected.top > from) {
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			paintOne(
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				QRect(left, from, width, selected.top - from),
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				false,
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				(from <= top),
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				false);
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		}
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		paintOne(
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			QRect(left, selected.top, width, selected.height),
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			true,
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			(selected.top <= top),
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			(selected.top + selected.height >= bottom));
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		from = selected.top + selected.height;
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	}
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	if (from < bottom) {
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		paintOne(
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			QRect(left, from, width, bottom - from),
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			false,
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			false,
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			true);
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	}
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}
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void PaintPatternBubblePart(
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		QPainter &p,
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		const QRect &viewport,
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		const QPixmap &pixmap,
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		const QRect &target) {
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	const auto factor = pixmap.devicePixelRatio();
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	if (viewport.size() * factor == pixmap.size()) {
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		const auto fill = target.intersected(viewport);
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		if (fill.isEmpty()) {
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			return;
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		}
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		p.drawPixmap(fill, pixmap, QRect(
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			(fill.topLeft() - viewport.topLeft()) * factor,
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			fill.size() * factor));
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	} else {
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		const auto to = viewport;
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		const auto from = QRect(QPoint(), pixmap.size());
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		const auto deviceRect = QRect(
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			QPoint(),
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			QSize(p.device()->width(), p.device()->height()));
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		const auto clip = (target != deviceRect);
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		if (clip) {
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			p.setClipRect(target);
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		}
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		p.drawPixmap(to, pixmap, from);
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		if (clip) {
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			p.setClipping(false);
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		}
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	}
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}
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void PaintPatternBubblePart(
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		QPainter &p,
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		const QRect &viewport,
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		const QPixmap &pixmap,
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		const QRect &target,
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		const QImage &mask,
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		QImage &cache) {
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	Expects(mask.bytesPerLine() == mask.width() * 4);
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	Expects(mask.format() == QImage::Format_ARGB32_Premultiplied);
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	if (cache.size() != mask.size()) {
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		cache = QImage(
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			mask.size(),
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			QImage::Format_ARGB32_Premultiplied);
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	}
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	cache.setDevicePixelRatio(mask.devicePixelRatio());
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	Assert(cache.bytesPerLine() == cache.width() * 4);
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	memcpy(cache.bits(), mask.constBits(), mask.sizeInBytes());
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	auto q = QPainter(&cache);
 | 
						|
	q.setCompositionMode(QPainter::CompositionMode_SourceIn);
 | 
						|
	PaintPatternBubblePart(
 | 
						|
		q,
 | 
						|
		viewport.translated(-target.topLeft()),
 | 
						|
		pixmap,
 | 
						|
		QRect(QPoint(), cache.size() / int(cache.devicePixelRatio())));
 | 
						|
	q.end();
 | 
						|
 | 
						|
	p.drawImage(target, cache);
 | 
						|
}
 | 
						|
 | 
						|
void PaintPatternBubblePart(
 | 
						|
		QPainter &p,
 | 
						|
		const QRect &viewport,
 | 
						|
		const QPixmap &pixmap,
 | 
						|
		const QRect &target,
 | 
						|
		Fn<void(QPainter&)> paintContent,
 | 
						|
		QImage &cache) {
 | 
						|
	Expects(paintContent != nullptr);
 | 
						|
 | 
						|
	const auto targetOrigin = target.topLeft();
 | 
						|
	const auto targetSize = target.size();
 | 
						|
	if (cache.size() != targetSize * style::DevicePixelRatio()) {
 | 
						|
		cache = QImage(
 | 
						|
			target.size() * style::DevicePixelRatio(),
 | 
						|
			QImage::Format_ARGB32_Premultiplied);
 | 
						|
		cache.setDevicePixelRatio(style::DevicePixelRatio());
 | 
						|
	}
 | 
						|
	cache.fill(Qt::transparent);
 | 
						|
	auto q = QPainter(&cache);
 | 
						|
	q.translate(-targetOrigin);
 | 
						|
	paintContent(q);
 | 
						|
	q.translate(targetOrigin);
 | 
						|
	q.setCompositionMode(QPainter::CompositionMode_SourceIn);
 | 
						|
	PaintPatternBubblePart(
 | 
						|
		q,
 | 
						|
		viewport.translated(-targetOrigin),
 | 
						|
		pixmap,
 | 
						|
		QRect(QPoint(), targetSize));
 | 
						|
	q.end();
 | 
						|
 | 
						|
	p.drawImage(target, cache);
 | 
						|
}
 | 
						|
 | 
						|
} // namespace Ui
 |